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J.o.uion: LONGMAN, BROWN, GREEN, LONGMANS, and ROBERTS. 9 w ftnSBURGH, PH, A DICTIONARY PRACTICAL MEDICINE: COMPRISIXG GENERAL PATHOLOGY, THE NATURE AND TREATMENT OF DISEASES, MORBID STRUCTURES, AND THE DISORDERS ESPECIALLY INCIDENTAL TO CLIMATES, TO THE SEX, AND TO THE DIFFERENT EPOCHS OP LIFE ; WITH iEumtrous prescriptions for tj^e JWEbicinES rccommenlJcU, A CLASSIFICATION OF DISEASES ACCORDING TO PATHOLOGICAL PRINCIPLES, A COPIOUS BIBLIOGRAPHY, WITH REFERENCES ; AND AN APPENDIX OF APPROVED FORMUL/E : THE WHOLE FORMING A LIBRARY OF PATHOLOGY AND PRACTICAL MEDICINE, AND A DIGEST OF MEDICAL LITERATURE. JAMES COPLAND, M.D. F.E.S. FELLOW OF THE ROYAL COLLEGE OF PHYSICIANS ; CONSULTING PHYSICIAN TO QUEEN CHARLOTTE'S LYING-IN HOSPITAL ; CONSULTING, AND. LATE SENIOR, PHYSICIAN TO THE ROYAL INFIRMARY FOR DISEASES OF CHILDREN ; FORMERLY SENIOR PHYSICIAN TO THE SOUTH LONDON DISPENSARY ; FELLOW OF THE ROYAL MEDICAt ^AnD CHIRURGICAL SOCIETIES OF LONDON AND BERLIN, AND OF THE ROYAL ACADEMY OF MEDICINE OF BELGIUM, ETC. Wi^^^ S^km of MeiiMir :i."S..feS:|f'7ifc2^EE VOLUMES. LONDON: '^ LONGMAN, BROWN, GREEN, AND LONGMANS, PATERNOSTER-ROW. 1844. \^ \ London : Printed by A. Siottiswoode, New- Street- Sijiiare. L^\ ^^— -^ ><: 1^^ ^ CONTENTS THE FIRST VOLUME. Page ABDOMEN — External Examinalion of, in Disease 1 ABORTION - . - - .5 ABSCESS - ~ - - - 12 ABSORPTION — In relation to the Causation, Continuance, and the Removal of Disease - 23 ABSTINENCE — Its Morbid Effects - - 26 ACNE - - - . .27 ADHESIONS— Reparative and Morbid . - 32 ADIPOSE TISSUE— Its Morbid States. - 36 AFTER PAINS - - - - 37 AGE — Considered with Relation to the Nature and Treatment of Diseases - - - 38 Of the early Periods of Age - . - 39 Of the advanced Periods of Age . - 44 AMAUROSIS . . - .50 ANGINA PECTORIS - - - 62 ANTIPATHY - . . .70 AORTA— Nervous Pulsation of the - .70 Inflammation of the . - - 71 Aneurism of the . - - - 72 APOPLEXY — Forms of - - - 79 Pathology, &c., of -' . - 87 Treatment of . . . - 98 Of New-born Infants - . . 107 APPETITE — Insatiable — Bulimia . - 107 Vitiated — Pica - - - .110 ARTERIES — Diseases of .' . .Ill Nervous Affection of . . . 112 Inflammation of - . - . 112 Morbid Structures of - . .116 Aneurisms, &c. - . . - 117 ARTS AND EMPLOYMENTS— In Relation to Disease . - . . - 122 ASPHYXY . - . . .128 Of New-born Infants ... 134 ASTHMA - - . - .135 ATROPHY . . - - .154 AUSCULTATION . - . - 156 BARRIERS - . - - .163 BERIBERI . - - - - 164 BLOOD — Its States in Health - . - 166 Exuberance of — Plethora - .168 Local Determinations of . . . 171 Deficiency of — Anaemia . - .173 Morbid Effects of its Loss . . .175 Alterations of, in Diseases - .180 Contamination of the, &c. . - 192 Nervous Influence on the - - 193 Aclions of Poisons on — Various Morbid Slates of — Signs and Treatment of, &c. 194 BLUE DISEASE - - - - 199 BRAIN— Alterations of its Membranes . -201 Alterations of its Sinuses and Vessels - 208 Alterations of its Substance . -209 Abscess of tlie .... 210 Softening — Hsemorrhage — Hypertrophy — Atrophy — Induration, &c. . - 214 Tumours in the, &c. . . .221 Cerebral Plethora - - - 226 Congestion ol the . - - 227 Inflammation of its Membranes . .228 Inflammation of its Substance . -'230 Inflammation of its Membranes and Sub- stance - - - - 232 Paee BRAIN — Softening of the . .241 Bibliography and References . - 24" BRONCHI AND AIR PASSAGES— Alterations of their Structure Congestion of the - Inflammations of the — Acute and Chronic Treatment of - BRONCHIAL FLUX — Bronchorrhcea - BRONCHOCELE BULLAE .... - 244 - 248 - 249 - So7 - 267 - 269 - 271 CACHEXY . - . . .272 African - - - . . 273 CjECUM — Diseases of the - - .274 Functional Disorders of the - -275 Inflammation of the ... 277 of its Appendix, &c. ." . 278 CANCER - . . . ' .282 CATALEPSY - - . -290 CATALEPTIC ECSTASY - - - £91 CATARRH - - . . - 293 CELLULAR TISSUE— Alterations of - - 298 Diffusive Inflammation of the - -299 Induration of the - - . - gu6 CHEST — External Examination of the - -309 Deformities of the . - - -310 CHICKEN-POX - - - -312 CHLOROSIS - - . - - 315 CHOLERA - - . - - 318 CHOLORIC FEVER OF INFANTS . . 325 CHOREA AND RELATED AFFECTIONS . 327 CLIMACTERIC DECAY . . - 336 CLIMATE— Its Physical Relations - - 338 Its influence on the Human Constitution . 342 in the Cure of Disease - - 349 COLD — Its Pathological Effects - - 354 Its Remedial Operations - - . 358 COLIC — Forms depending on Functional Disorder 360 Bilious — Hepatic — Madrid, or West Indian 362 From the Poison of Lead, &c. - - 364 COLIC AND ILEUS — From Change of Structure and Relative Position of the Bowels — Comprising Introsusceptions, &c. - - - - 266 Treatment, &c. - - - - 371 COLON — Nature and Treatment of its Morbid States - . - - - 382 COMA AND LETHARGY - - - 387 CONCRETIONS, BILIARY - - - 392 CONCRETIONS, INTESTINAL - . 397 CONGESTION OF BLOOD - - - 401 CONSTIPATION - - - - 405 CONVULSIONS — Partial and General - .412 Infantile - - - - 417 Puerperal - . . - 4I8 COUGH - - - - - 436 CRANIUM AND EN VELOPES — Their Lesions 439 CRETINISM - - - - - 441 CRISIS AND CRITICAL CHANGES - - 443 CRITICAL DAYS - - - - 448 CROUP - - . - - 449 Its Varieties .... 452 "^AVb CONTENTS. CROUP— Its Complications, &c. Its Treatment Page - 454 - 462 DEBILITY — Its General States, &c. - - 473 Its Special Manifestations, Effects, and Rela- tions - - . . 477 Its Treatment - - - - 481 DEGLUTITION, DIFFICULT - . 486 DELIRIUM - - . - .490 DELIRIUM WITH TREMOR - - 497 And Excited Vascular Action - - 497 And Exhausted Nervous Power (Delirium Tremens) - - - 497 DENTITION, DIFFICULT - . - 504 DIABETES— Pathology, &c., of - -506 Treatment of - - - - 513 DIAPHRAGM— Inflammation of - .519 Organic and Functional Lesions of - 521 DIARRHOEA — Symptoms and Varieties . 522 Of Infants, &c. - - - - 525 Its Treatment, &c. ... 528 DIGESTIVE CANAL— Its Functional Disorders 536 Its Lesions of Circulation . . 540 Hypertrophy, &c. of its Tissues ■■ -542 Softening of its Coats . - -544 Ulceration and Perforation of - - 545 Adventitious Formations in - - 550 Changes of Capacity and Situation - - 552 DISEASE — The Causation and Doctrine of - 556 Causation of — ilCtiology - - . 558 From Diet — Dietetics - - 566 Its principal and primary States — Pathogeny 572 Dynamic States of — Debility, Excitement, and Exhaustion - . - . 572 Perverted or alienated Vital Power - - 578 Of the Fluids and Solids, originating in the foregoing .... 580 Of the Exhalations and Secretions - -580 Of Nutrition .... 585 Of both Secretion and Nutrition, and their adventitious Products ... 58S With Destruction of Parts . - 593 Of the Fluids and Solids — their Connection 593 The Procession of ... 594 The Terminations of . . . 596 The Relations, Successions, and Complica. tions of - . . . 597 Of the Metastasis of . . .599 Circumstances modifying, &c. - - 601 DROPSY— Its Pathology r - -603 Its Treatment . . - -613 Various Remedies recommended in, &c. - 617 DROPSY OF THE ABDOMEN — Ascites - 627 In the Puerperal States ... 633 DROPSY OF THE AMNION . - .634 DROPSY OF THE CELLULAR TISSUE . 635 Local — Oidema . - . - 635 General . - - . . 635 DROPSY OF THE CHEST . . - 641 DROPSY OF THE PERICARDIUM — The Fluid effused into the Pericardium - - . 641 DROPSY OF THE PLEURAL CAVITIES - 645 The Fluid effused into the Pleurae — Hydro- thorax .... 646 DROPSY, CONGENITAL, OF THE HEAD - 649 DROPSY, CONGENITAL OF THE SPINE . 650 DROPSY, CONGENITAL, OF THE ABDO. MEN, CHEST, &c. - - - - 651 DROPSY, ENCYSTED .... 652 DROPSY, ENCYSTED, OF THE OVARIUM . 654 DROPSY OF THE WOMB, TUBES, &c. 657 DROPSY, EN(JYSTED, OF THE PERITO. NEUM ..... 658 DROPSY, ENCYSTED, OF THE LIVER, KID- NEY, &c. ..... 659 DROPSy, ACUTE, ANDSUB-ACUTE, IN THE HEAD ..... 660 DROPSY, CHRONIC, IN THE HEAD . 676 DRUNKENNESS .... 685 DUODENUM — Its Diseases . - .689 DYSEN'J'ERV .... 693 Acute ..... 695 Asthenic .... 698 Chronic ..... 7(17 Treatment .... 717 EAR— Nervous Affections of . . .735 EAR-ACHE . . •- . 736 EAR— Inflammation of - - -737 ECTHYMA - - - - - 742 ECZEMA . . - . - 745 t EDUCATION, PHYSICAL . - - 749 I ELEPHANTIASIS . . - - 750 I EMPHYSEMA - - - .752 ENDEMIC INFLUENCES AND DISEASES . 756 EPHELIS - - - . - 765 ! EPIDEMICS, AND EPIDEMIC CONSTITU- TIONS - - - . .767 EPIGASTRIUM— States of - - -782 Concussions of . - - - 784 EPILEPSY - - . - - 785 Varieties and Complications - - 794 Treatment - - - - 799 ERECTILE TISSUE - . - - 816 ERETHISM - - - . - 816 Mercurial - - - - 817 ERGOTISM - - - - 817 ERYSIPELAS - - - - 818 Varieties and Complications - - 821 Treatment - . . - 828 ERYSIPELAS OF INFANTS - - .835 ERYTHEMA- - . - -836 EXANTHEMATOUS DISEASES - - 839 EXCRETION AND EXCRETIONS . . 840 EXPECTORATION - - . .846 EYE— Diseases of the . . . .848 Inflammation of its Conjunctiva - -850 Purulent Ophthalmia in Infants - - 852 Purulent Ophthalmia of Adults - . 856 Gonorrhoea! Ophthalmia - - - 861 Scrofulous Ophthalmia - . - 863 Exanthem.itous Ophthalmia - - - 865 -Hnflammation of Sclerotic Coat of - - 865 Rheumatic and Arthritic Ophthalmia . 8fi8 Inflammation of the Cornea - - 869 Inflammation of Anterior Chamber . - 870 Inflammation of the Iris . . -871 Inflammation of the Internal Coats - - 875 Inflammation of the whole- . .877 FAINTING AND SWOONING - - 879 FEIGNING DISEASE . - •■ 884 FEVER — GENERAL VIEW OF . . 892 Course and Stages of . - - 899 Types and Forms of . . . 902 Pathology, &c. of - . . . 907 General Treatment of - . - 920 FEVER, INTERMITTENT . - .934 Treatment of Intermittents - -940 FEVER, REMITTENT . . .946 FEVER— Treatment of Remittents - -952 Chronic Remittents ... 9,155 FEVER— Remittent of Children . .957 Treatment of Infantile Remittent . ■ 959 FEVER, HECTIC .... 962 FEVER, CONTINUED ■ . - 967 FEVER, ARDENT . . - 972 FEVEH, INFLAMMATORY - - - 973 FEVER, BILIO-GASTRIC . . - 983 FEVER, MUCOUS OR PITUITOUS . - 988 FEVER, SWEATING . . .990 FEVER, SYNOCHOID . . . 993 FEVER, TYPHOID .... 1001 FEVER, MILD, TYPHOID, OR NERVOUS - 1002 FEVER, COMPLICATED TYPHOID . 1003 FEVER, TYPHOID, WITH PUTKOADYNA- MIA ..... 1006 FEVER. TYPHOID, WITH EXANTHEMA. TOUS ERUP'IION . . . 1009 FEVERS, TYPHOID — Terminations and Struc- tural Lesions in, Sc. .... 1013 Treatuu-nt of .... 1017 Various Modes of Treatment of, &c. . 1028 Bibliography and References - . 1038 FIBROUS TISSUE— Diseases of - -1040 FLATULENCY - - . . 1043 F(ETUS— Diseases of the - - -1047 FUNGOID DISEASES - - - 1048 FURUNCULAR ERUPTIONS - . 10 3 DICTIONARY OF PRACTICAL MEDICINE. ABDOMEN. Syn. Vetitre, Fr. Unterleib, Bauch, Ger. Ventre, Pancia, Ital. Belly, Eng. External Examination of the Abdomen in Disease. Classification. — Pathology. Semewlogu, or Si/mplpmatology ; Diagnosis. 1. The abdomen may be considered as the fundamental part of the frame, inasmuch as it is never wanting in monstrous foetuses ; and as it contains parts which are the first formed in the embryo, and are the centres and sources of or- ganic life. The number and importance of the viscera contained in its cavity ; the number, the diversity, the extreme frequency and complica- tion, of tlie maladies to which tliese viscera are liable, are circumstances which pressingly urge upon tiie practitioner a careful exauiination of the parietes of this cavity, in order to ascertain the nature and extent of disease. Aluch, how- ever, will depend upon the manner in which the examination is made, in respect both of acquir- ing information as to the existing state of disease, and of drawing inferences as to its origin, and the best means of lemoving it. 2. Pathologists have generally divided the ab- domen into ceitain Regions, with the view of describing with more accuracy the seat of morbid actions. J hese regions are marked out by means of imaginary lines, drawn in horizontal and ver tical directions. The horizontal lines, four in number, divide this cavity into three zones. The highest of these lines passes over the xiphoid carti- lage ; the second, by the margin of the tenth nb ; the tiiird, by the anterior and superior spine of the ilia ; and the fourtii, by the superior margin of the pubis ; thus giving three zones, the epigastric, the umbilical, and the hypogastric. 3. For the sake of additional precision, each of these zones is divided into segments by vertical lines, also four in number, drawn from ihe acro- mial extremity of the right and left clavicles to the insertion of the ligaments of Poupart ; and from the posterior margins of the axillas, over the most exterior part of the crests of the ilia, to the large trochanters. The spinous processes of the vertebrae may likewise be considered as forming a fifth line of demarcation; as we cannot overlook the posterior parts of the body in our investigation of many of the diseases affecting the abdominal organs. The vertical lines now enumerated, di- viding the horizontal lines very nearly at right angles, give us nine regions on the anterior and lateral aspects of the abdomen, and six posterior regions. The anterior regions are the epigastric, umbilical, hypogastric, and right and left inguinal ; Vol. I. j the lateral regions are the right and left hypo- chondriac and right and left iliac; the dorsal regions are inferior dorsal — right and left, the right and left lumbar, and the right and left glu- teal regions. 4. It does not belong to the scope of this work to enumerate the anatomical boundaries of the abdomen ; the parts forming its parietes ; or the viscera contained in each region. These are matters which are, or ought to be, familiar to all who peruse this work. 15ut it is necessary to remind the reader, that organs which, in the healthy state, are always situate in a particular region, will be so changed in form and bulk by disease as frequently to extend to adjoining regions, where they will often be detected upon a careful examination ; or they will be altogetiier displaced, either by the specific gravity of their contents, or by tumours developed in their structure. The former phenomenon is often remarked in respect of the liver, spleen, kidneys, ovarium, uterus, &c.; the latter, in the stomach, pylorus, gall-bladder, colon, &c. 5. This change of the position of the abdominal viscera is chiefly observed, in the more chronic kinds of organic diseases, and is pointed out in the articles in which they are described : it is ge- nerally more manifest in one posture of the body than in others ; and is to be ascertained, with the other maladies to which these viscera are liable, by the modes of examining the abdomen about to be explained, assisted by other rational or infer- ential symptoms. These modes may be made the source of much information as to all the relations of abdominal diseases ; but attention, rejjeated observations, and much natural discernment, are required to obtain from them all the knowledge they are capable of conveying. I shall discuss this subject, in the brief manner to which I am neces'iarily driven, by noticing — I. Inspection; II. Manual ejumination ; III. Percussion; and IV. Auscultation of the abdomen. 6. I. Inspection by the senso of sight merely, although the best mode of ac(juiring an idea of the form, size, and motions of the abdomen, is chiefly valuable as a means of investigating the diseases of its viscera in conjunction with the other modes just enumerated : yet simple inspection furnishes us with the most imponant infoimation in many diseases, particularly in those of infancy and childhood, as well as in many acute and chronic maladies occurring in adul'.s. The form of the abdomen, although neces-arily in some measure changed by marked variation of its bulk, may, neverthe'ess, be much altered without any decided li ABDOMEN — Investigation of, in Disease. difference in its size. Thus, it is somewhat changed 1 in severe diseases of the respiratory passages, when the entrance of air into the lungs is obstructed ; the epigastrium and hypochondria being then pressed inwards and upwaids: whilst in some morbid states of the liver and gall-bladder, of the spleen, and of the ovaria, an unusual prominence in their respective regions is frequently observed. But the most remarkable changes in the form of the abdomen is met with when the size of the ca- vity is also altered. It is scarcely necessary to allude to examples; but, in all those diseases at- tended with enlargement or diminution of the bulk of this important part of the body, either in one of its regions, in several of them, or in all, inspection should always be performed : it gives greater pre- cision to manual examination ; enables us to com- pare the bulk of a region with the corresponding region on the other side, and with others in its vicinity ; and impresses upon the memory the changes which the part may experience during the progress of disease. It should, therefore, never be neglected in all the forms of abdominal dropsy ; in peritonitis, chronic or acute ; in in- flammation of the stomach, liver, spleen, and bowels; in the different kinds of colic, in fevers, in uterine and ovarian diseases; in afiections of the kidneys and urinary organs ; in all disorders accompanied with obstruction to the excretions; and, in short, in all ciironic maladies. It ought never to be ovei looked in the diseases of infancy and childhood, of whatever nature they may be. 7. Besides, however, attending in those diseases to the form and size of the abdomen merely, the motions which it presents ought not to be neglected. When rightly interpreted, they often furnish im- portant diagnostic and therapeutic hints. But they require to be viewed in connection with the motions of the thorax, and state of the heart's ac- tion. In diaphragmitis, peritonitis, gastritis, enter- itis, and certain states of hepatitis, the motions of the abdomen are slight or obscure, whilst the ac- tions of the thorax are increased. On the other hand, in several severe diseases of the respiratory organs, p.irticularly in croup, laryngiti-!, bronchi- tis, several varieties of asthma, pleuritis, pneu- monia, Sic, tiie parietes of the chest are nearly motionless ; whilst the niovements of the abdomen, especially at the epigastrium, in croup and asthma, are remarkably increased, or laborious. The motions of the abdomen, also, are often not li- mited to those caused by respiration ; but in some cases, particularly in organic changesof the heart, pericardium, aovta, &c.,and even in certain nerv- ous di^orde^s implicating these organs, comprise those occasioned by the action of the heart, in- creased by the state of the large abdominal vessels, and by the emaciation or other morbid conditions of the patient. 8. II. IManual Examination of tiie abdo- men is one of the most important means of dia- gnosis we possess : but it furnishes information in proportion to the perfection of manner in which It is made. In this very retjuisile mode of inves- tigation, the temperature of the hand of the prac- titioner at ilietiiue of making it should be attended to, in the great majority of diseases; both ns a moderate warmth of the hand is necessary to the greatest delicacy atul accuracy of touch, and as its ap])tication to the surface of the abdomen will not in that state occasion any disturbance or con- traction of the muscular parietes. In entering upon tlie examination, care should be taken not to excite the alarm of the patient. The hand ought to be applied at first in the gentlest manner pos- sible. By observing this, three very important objects wdl be best obtained ; namely, a know- ledge of the form, of the temperature, and of the sensibility of the surface of the abdomen, 9. As much more information than this is required from manual examination, the patient should be directed to place himself in a favour- able position for a more general and complete investigation. He should be placed on his back, with the head and shoulders slightly and com- fortably elevated, and the thighs drawn nearly to a right angle with the trunk. If the bladder be full, it should be emptied. When proceeding to examine, the patient should be told to lelax all the muscles, particularly the abdominal muscles. Commencing, therefore, with the utmost gentle- ness, and passing the hand slightly over the ab- domen, we should slowly increase the pressure, with the view of ascertaining the following con- ditions : — 1st, Its temperature ; 2d, Its form and size ; 3d, Its sensibility ; 4th, Its degree of ten- sion and firmness ; 5th, The existence of enlarge- ments, tumours, &c. ; 6th, The presence of effused fluids; 7th, The probable existence of accumu- lated secretions and faecal matters ; 8tli, Hernial protrusions and displacements. On each of these I proceed to offer a few remarks. 10. 1st, The temperature o( the abdomen fur- nishes most important indications as to the nature of disease. It is generally always higher than natural in diseases of increased action ; and is also often higher when the patient is actually com- plaining of cold, particularly at the commence- ment of fevers. In many feveis and inflammations of the abdominal viscera, particularly those of a dangerous or malignant character, the increased temperature is accompanied with a peculiar acrid pungency to the sensation of the examiner; a phenomenon which indicates the utmost risk of rapidly supervening disorganisation. Diminished temperature of the abdomen is met with in the period of depression, or cold stage at the com- mencement of fevers, but very seldom at their termination, even in death, unless in the most malignant or liquescent forms. It is also met with after injuries of the abdomen, particularly blows on the epigastrium, in anasmia, chlorosis, and other disordeis of debility. 11. 2d, The form and si^ze of the abdomen nre frequently altered, as already noticed (§6, 7.); but, in order to ascertain the nature of the alter- ation, various means of investigation are generally required, particularly those >vhich remain to be considered. When proceeding- with the manual examination of the abdomen, it is necessary very gently to increase the pressure, and, when acute pain is not complained of, to make it in various directions, — laterally, downwards, upwards, and backwards to the spine, — so that if altered sensi- bility of any of the contained viscera exist, it may not escape detection, but be accurately ascer- tained and estimated ; and the examination should always be made with a careful observ.ntion of its effects upon the expression of the countenance of the patient. Jt will also often be reijuisiie to per- form the manual examination, now with the points of several hngers, now with the whole of one, or abdomi:n- • Investigation of, in Disease. even of both hands ; and occasionally, at the same time that a full inspiration is being made. But it should always be performed with attention to the sensations of the patient, particularly as expressed by the countenance, and to the feelings and ideas it may excite in our own minds. Even the slate of action in which the abdominal muscles are often thrown by the examination ; the degree of pressure occasioning such action ; and the cir- cumstance of tension of those muscles preceding the examination, or being excited by it, as well as the continuance of their contractions, and the pe- riods and occasions of their relaxation, are all im- portant matters in our estimate of the state of the viscera underneath, — more particularly in the various states of inflammation seated in the peri- toneum, in the alimentary canal, &:c. 12. 3.1, The sensibilitii of the parietes of the abdomen is most intimately associated with that of the contained organs, botii in health and dis- ease. 'I'he sensibility of the epigastric region varies most widely in different persons It is fre- quently, even in tolerable health, very great in delicate and thin females. It is always so in inflammation of the viscera, more particularly when the serous membranes are affected ; and the more superficial the inflammation, the more tender is the surface. In order to obtain an ac- curate idea of the state of the sensibility of the abdomen, pressure should be commenced in the gentlest manner, and with the fingers and palm of the open hand. When the patient cannot endure the slightest touch, the disease is then commonly in the parietes, or in the serous mem- brane reflected over them. When the cause exists more deeply, the tenderness is less acute, and the muscles are almost instinctively brought into action, even before pressure is made, in order to protect the diseased viscera from it. 13. When superficial tenderness is absent, the examination may be made with increased pres- sure, in order to ascertain the presence of tender- ness, pain, or soreness, in any degree or at any part. But cauiion in thus iiicrea-ing the pressure is always necessary when the parenchyma of an organ, particularly of the liver or spleen, is enlarged or otherwise affected ; for many such aflTeciions may be very serious, and yet the sensibility of the diseased part not much mcreased. 1 have known rupture of an enlarged and softened spleen occa- sioned by the rudeness of the examination; and writers have mentioned similar accidents to have occurred to the liver. 14. 4lh, The tensim and firmness of the abdo- men requii'e attention, and due estimation of their actual amount; and in connection with the other diagnostic indications furnished by the examin- ation. Thus, when the tension is associated with increased temperature and sensibility, inflamma- tion of one or more organs underneath, particularly of the peritoneum, may be predicated. The tu- mefaction, degree of sensibility, position of the patient, &c. will fuither prove the accuracy of the diagnosis. Tension and firmness are always present in the difl^erent forms of peritonitis and inflammations of the subjacent viscera, but not uniformly throughout all their stages. Even in the worst or most malignant forms of peritonitis, as those met with in puerperal females, these symptoms are often either almost altogether want- ing, or they exist for a short time only. \\ hen eflfusion of a serous or sero-purulent matter occurs in peritonitis, or when suppuration has followed inflammation of the enveloped viscera, tension as well as firmness disappear. They are generally, however, both present even when the sensibility of the paiietes is not much greater than natural, in chronic peritonitis with the formation of false membranes, or the agglutination of the opposin"- nishes valuable means of diagnosis in very many diseases, particularly when estimated in due con- nection with those derived from other sources; but I should add, — what I shall often have to prove herealter, — that it does not always give us exactly the same kind of information that is slated in several, and even in some very recent, works. Thus it is said to be the most certain means of ascertaining the presence of enlarged mesenteric glands, and by actually feeling these glands en- larged, A'ow this is nut the case, and I slate it from an experience of many hundred cases : for there are comparatively but few instances in which these enlarged glands can be satisfactorily detected, by the most careful manual examination. Hut this mode of inve-^tigation furnishes certain indications of their presence of a different kind from that which writers have laid down. It may also be remarked, that a manual examination of the abdomen is generally much more successfully made in lean subjects, in females than in males, and in children than in adults; whilst in muscu- lar men, and in fat persons, it furnishes much less information, owing to the muscularity and thick- ness of ihe abdominal parieles. 20. HI, Peiicussion has been employed as a means of diagnosis in diseases of the abdomen, from a very early period of medical knowledge, but chiefly with a view of recoijnising tympanitic alFections, or unu-ual accumulations of air, and dropsical efl'u-ioiis ; and ii was not until very lately that altenlion was directed to it as a means of investigation in a very large proportion of other diseases of the ab lominal viscera. Percussion of the abdomen, as well as of the thorax, is either direct or mediate : the former is that which was first ably insisted on by Auenbrugger, and brought into notice by Cokvisart, chiefly in the investigation of thoracic diseases ; the latter, both in its application to abdominal and thoracic affec- tions, is the invention of JM. Piounv, who has paid great attention to its perfection, and has written ably on it as a means of diagnosis. 21. Direct percussion consists of simply striking the parts, somewhat smartly, with the points of two or more fingers united and brought to the same plane, and attending to tlie sounds elicited. Mediate percussion is performing the same with a thin plate of ivory, box wood, or any other hard elastic body, placed over the part to be thus examined, and striking upon it. The advantages derived from having such a body interpo-ed be- tween the surface and the fingers are, 1st, The part is protected in a great measure from the stroke, which, although slight, yet is frequently unpleasant to delicate and sensitive persons; 2d, It assists in the production of the sound for the obtaining which percussion is employed. (See art. Peucussiox.) The body on which the per- cussion is thus made usually consists of a small ivory plate of about 2^ or 3 inches in diameter ; M. PioiiRV calls it the plc.iimeter, or measure of percussion. In all cases in which we wish to examine the abdomen by percussion, it will be necessary to use the pleximeter. The information it conveys varies according to the state of the parts underneath. If we place it over the liver, percussion gives out a dull sound; from the cir- cumstance of a dense body lying beneath that part of the abdominal parietes : if it be moved in the course of the stomach and colon, a sound will be elicited clear in proportion to the quantity of air contained in these viscera. 22. During our investigation of the abdominal contents with the aid of mediate percussion, it will be necessary to attend to certain facts : — 1st, That the pleximeter will furnish, in the same person, a sound varying from dull to tympanitic as the parts over which it may be placed differ in density and the (juantity of air they may enclose; 2d, I'hat in situations of the abdomen where, owing to the quantity of air usually contained in the bowels, mediate percussion generally gives a tympanitic sound when the plate is placed lightly on the surface, it will give a much duller, or even a dead sound, when pressed inwards so as to displace the air from underneath it, and to approach nearer to some solid body, or to bring the parts nearer to that condition by the pressure ; 3d, That the stomach and whole tract of the in- testinal canal always contain a certain (piantity of air or gaseous fluid, particularly the large bowels ; and that they approach more nearly to the abdominal paiietes in pro|)ortion to their dis- tension, whether with air, or with fluid, or more or less solid contents ; and, 4tli, The quantity of air contained in the digestive tube, especially the stomach an'l large bowels, is great in pro])ortion to the deficiency of its vital energy, and the degree of inflammatory action affecting it. 23. These facts being attended to in our in- vestigations of abdominal diseases by means of percussion, mediate or diiect, the extent of the liver may be distinctly traced by its means ; and the d gree of inflation of the bowels, or stoniacii. ABORTION — Causes of. may be ascertained witli tolerable certainty. When the slomacli is nearly empty (for it always con- tains some air secreted from its internal surface), it retracts backwards, and recedes from the abdo- minal parietes towards the centre of the trunk ; having then the colon, more or less distended witii gas, placed before it. As it becomes filled with air or the ordinary ingesta, it extends to the left hypochondrium, and approaches the left and an- terior parietes of the upper Eone of the abdomen. In proportion to the quantity of air it contains, percussion gives out a clear sound, which is dull or dead as it is filled with fluid or solid ingesta, and as the air is displaced. When we know that the stomach must be empty of food, and yet find that a dull sound is emitted, on percussion, we should always suspect organic disea e. In these cases air is often secreted with great rapidity from its internal surface, but is immediately expelled, owing to the irritable state of its muscular coats, without being retained, and before any very material distension of the viscus is occasioned by it. 24. The small intestines generally contain air; although, I believe, much less than is usually found in the large bowels. In a state of health, particularly a few hours after a meal, when the chymous matter is passing along them, percussion over them, — that is, over the umbilical region, and the immediately adjoining parts of tlie surround- ing regions, — generally yields a dull sound ; which becomes clear in proportion to the quantity of air they contain, excepting in very fat persons. In a great majority of abdominal diseases, the quantity of air contained in the small intestine-; is increased much beyond what exists in health : this is particularly the case in several diseases of debility, as chlorosis, indigestions, colicky affec- tions, torpid states of the liver, constipation, cer- tain states of fever, hysteria, &c. ; and stdl more so in inflammatory states of portions of the diges- tive tul)e, in peritonitis, in puerperal fevers, &c. 25. When the mucous surface of the bowels or of the stomach is irritated or inflamed, the quantity of air secreted is often very great ; but, excepting in the slighter states of such diseases, it is seldom retained within the sphere of the in- flammation so as to occasion that degree of dis- tension which may be detected by percussion, although it is often retained in adjoining parts of the tube, occasioning distension, great pain, tor- mina, &c. This disposition to expel the morbid collection of air arises from the irritability of the muscular fibres of that part of the intestines, the mucous surface of which is in a state of irritation ; the morbid action of these fibres propelling it either upwards or downwards, where it may accu- mulate or be evacuated, but most commonly into the large bowels, or into the duodenum and stomach, where it may he detected by percu-sion. In diseases which paralyse the contractile actions of the muscular coats of the bowels, as malig- nant puerperal peritonitis, the last stages of ente- ritis, rabies cnnina, and the advanced states of adynamic fevers, the quantity of air which is secreted and accumulated in the whole digestive tube, and the consequent distension, are often enormous. The sound on percussion, in these cases, generally becomes quite tympanitic long before death, indicating the cause, as well as the lost tone of the mu-cular coat of the canal. 2(5. The phenomena now noticed to occur in respect of the small intestiries afTect, in a still more marked manner, the large bowels ; flatulent distension of these being rt adily traced by mediate, or even direct percussion, paiticularly in the course of the colon, even when the small intes- tines are comparatively free from it. 27. It is not merely the presence of accuinu- lated air in the difl^erent parts of the digestive tube, and the important pathological and therapeutic in- dications to which the knowledge of tlii-^ fact natu- rally leads, that render percussion of the abdomen a valuable means of investigation, but it is also the information it conveys of the existence of mote solid formations — of fluid collections, and morbid productions. Unu-ual distension of the bladder; all the forms of abdominal dropsy ; ovarian dis- eases ; purulent collections in, or enlargenents of, the liver; tumours of every kind, particularly when they reach a considerable size ; enlarge- ments of the spleen or kidneys, &c. ; are more readily and earlier detected by means of mediate percussion than without this aid : and, in all these, the sound emitted is dead over the diseased part, and becomes clear as the boundary of dis- ease is passed, and when the plate is placed over the hollow viscera. 28. IV'. Auscultation, mediate or direct, par- ticularly the former, is often necessary in abdo- minal diseases, particularly in ascertaining whether or not the large vessels are affected ; and even in tracing disease of the right side of the heart and of the pericardium. It may also be useful iti those diseases of the liver which extend to the lungs through the diaphragm, particularly abscess, or hydatidic cysts of the liver breaking into the lungs. Auscultation of the abdomen has been resorted (o by M. KiiRGAnADKC to a-certain the existence of pregnancy; and by JNI. Lisfkanc, to determine the presence of stone in the bladder, when the sound is imperfectly heard to strike against it. Bibliography. — BurUvi, Prax. Med. lib. iv. c. 9 — Double, Semeiolosie Generale, t. i. p. 3H3. — Criiveilhicr, Dictionnaire de Med. el Chinirg. Piat.t. i. — P/uny, De la Perc\ission Mediate, Pans, 1828 ; et Precede Oferatoire dansrExploratioiidesOrgane!; par la l^ercussioii Mediate, Paris, 1830._i^oj-6f4-, Cyclop, of Pract. Med. vol. i. p. I. ABORTION. SvN. Abortus, Abmsus, Affluxio. Atas. M. Fiat Injectio. 41. When troublesome, diarrhoea is present, in cases of this description, the cliloiuret of lime, either in the form of pill or solution, is extremely efficaciou--. I have prescribed it as follows: — No. 4.R ChloruretiCalcisgr. viij xvij.; Pulv.Traga- canth. Comp. Sj^s.; Syrup, q. s. M. Fiant Pilula xxiv., qaaruni capiat binas ter quaterve in die. No. .5. R Ctilorureti Calcis, gt. vj.—xij.; Tinct.CaIumb

K^t-», in Diet, de Med. et de Chirurg. Prat, torn. iii. Paris, 8vo. 1829. — Brit, and For. Med. Rev. vol. vi. p. 81. ABSCESS. Syn. Abscessiis (from ahscedere, to depart, to separate), Apnsteina, Abscessio, Vo- mica, Imposthuma, Auct. Lat, ATroa-rufA-a, Gr. Abces, Fr. Die Eiterbeule, Ger. Edder- byld, Dan. Bidning, Swed. Ettergezwel, Dut. Ascesso, Ital. Abscesso, Span. Abscesso, Port. Abscess, Impostinane, Eng. Classif. — See Inflammation. 1. Defin. a collection of purulent malter formed or deposited in the structure of an organ or ]>art. 2. An abscess is never an original disease, but is constantly the effect or termination of inflam- matory aciion, in some form or grade, or of irri- tation of the part in which it is seated. This may not seem to be in accordance with certain phe- nomena connected with the formation of purulent collections, in parts at a distance from ihose in whicli inflammatory action originates, and where pus is originally formed: but I shall iiave occa- sion to show that it is not oppO'^ed to sound views as to tiiis topic, or, at least, that the exceptions to it are few. 3. Without noticing further than to enumerate them, the older distinctions of abscesses into the warm, phlegmonous, or inflammatory, the cold or congestive, and the acute and the clironic, 1 shall have to show that, instead of proceeding from difl^erent sources, they are equally the result of a certain state of inflammatory action, modified into a variety of forms according to the degrees of vital energy and aciion of the part, and of the system generally, the organisation of the part af- fected, and the peculiarity of constitution and diathesis. In the present article, a general view will be taken of the patliologif and medical treat- ment of ahscess, the consideration of the difl^erent kinds of absce-s : their vaiious seals, and lelaiioiis to other diseases, fail under different heads, where tiiey are more adrantugeously discussed. 4. I. Of the Patiiologicai (^iiahacteks of Abscess. — 1st, Of abscess proceeding from acute injlammation, with integritxi of the constitutional energi/. — When a part becomes inflamed, liie vi- tality of which has not been previously injured, as respects either its ine causes, particularly those which con- taminate the structure to which they are applied, as various aYiimal poisons, animal and vegetable matter in a state of decomposition, or whatever produces, from its local or constitutional action, a septic effect upon the living textures — from these circumstances, especially, inflammatory action is 14 ABSCESS — DiiFus not limited lo a particular part, or within rlistinct bounds; and the fluid wliich is poured out from the inflamed vessels is not circumscribed, or con- fined to the centre of the inflamed part. The inflammation which produces this unhealthy and imperfect form of abscess is always characterised by that state of asthenic or ataxic action, local and general, which is incapable of producing co- agulable lymph from the blood, that may limit both the morbid action and the effused fluid. (See art. Inflammation.) 14. This kind of abscess not infrequently forms in erysipelas ; or after wounds, injuries, and punctures ; and from the inoculation of an animal poi-on. The characters of the suc- cession of morbid actions it presents are want of vital power and resistance, and a speedy solution of tlie vital cohesion of the affected tissues. It would seem that the influence of the ganglial nerves supplying the capillaries of the part is ra- pidly, or almost instantly, destroyed by the cause of the disease ; and that the vessels, thus deprived of a great proportion of the whole of their vitality, allow the escape of the more fluid parts of the blood, and the infiltration of the tissues. The vessels pass rapidly, and without the previous grades of healthy inflammation, into that state which admits of the effusion of a watery or puri- form sanies. The state of vital energy, and tiie deficient crasis, or unhealthy condition, of the blood itself, probably contribute to this result; and, with the efl^ect of this effusion on the diseased part, promote the rapid exhaustion of the remain- ing action of the capillaiies. 15. Diffusive abscesses generally commence in, and spread rapidly in thedireciion of, the cellular tissue. They aflPect also, in a very marked man- ner, the other structures placed in their way. They seldom commence in the internal viscera, as the liver, lungs, &c. ; but when they do thus originate, as is occasionally observed in the latter stages of malignant or ataxic fevers, in exhausted states of the frame, &c., they nearly approach the characters they assume in the cellular struc- ture. In almost every case of this disease, the constitutional disturbance is very remarkable ; and the powers of the nervous system, particu- larly that presiding overthe organic and assimilat- ing functions, are uncommonly depressed. Locally, the effusion of a watery, or sero-albuminous, or a sero-sanguineous fluid, is nearly coeval with the aflfection of the cellular tissue and congestion of its capillaries. The vital cohesion of the inflamed texture is rapidly dissolved ; and the fluid, abun- dantly poured out in its areola; or cellules, distends the part, diminishes its vital functions to the lowest grade, and, at points, lacerates its tissue, thereby partially cutting oflT its connection with the adjoining structures. 'J'hus the fluid is eflTused from the congested capillaries of the affected part in numerous places : in soine, forming consider- able collections; in others, mere infiltrations. Parts of the cellular tissue itself, and, in rare in- stances, as the mischief .proceeds, portions of ad- joining or intermediate textures, are deprived of nil vitality, sphacelate, fund mix with the fluid e Abused. If). In many cases the integuments participate but injperfectly, and often not at all, in the mor- bid actions, whilst the process, as now described, is going forward ; and the great eflfusion into, and tVE, ITS Pathology. partial destruction of, the cellular tissue, have enormously distended the limb or part in a dif- fused manner, and to a great extent, and given it a boggy or imperfectly fluctuating character. At a later period, parts of the more attenuated or dis- coloured integuments vesicate, ultimately burst, and give issue at first to a discoloured puriform secietion, which afterwards becomes offensive and otherwise modified. When the skin is affected, it generally presents a dark or livid hue: its tem- perature is seldom above (excepting, sometimes, at the very commencement of the antecedent in- flammation), and frequently sinks below, the na- tural standard. 17. With respect to the appearance of the se- cretion in this form of abscess, I may state, that it not only varies remarkably in different cases but also at different stages of the same case. At first, the fluid effused and infiltrating the cellular structure consists chiefly of a limpid, reddened serum, which readily flows from the divided struc- tures ; in a more advanced stasre, the effused mat- ter is less fluid, often high-coloured, but without the whiteness and opacity of purulent matter. Afterwards, the cellular membrane is engorged with a white semifluid matter, which separates the particles of fat and cellular tissue at an unusual distance from each other. In subsequent stages it continues opaque ; but often becomes reddish, greenish, and more fluid. Ata still moreadvanced period, the infiltrated cellular and adipose tissue are entirely broken down, and the sphacelated portions hanging into, or mixed with, the puriform matter ; which sometimes now presents the appear- ance of a brownish, purulent sanies, sometimes a greenish pus, and at other times a sero-purulent matter of various shades of colour and degrees of consistence. At no period of the disease is the matter contained in any circumscribed cavity, but is gradually and irregularly lost in the surround- ing cellular tissue ; without any demarcation, or appearance of coagulable lymph about the cir- cumference of the diseased part. In general, the purulent secretion speedily assumes an offensive odour, and its sensible qualities are otherwise altered, and often variously, upon the admission of air to the diseased surface. 18. The muscular structure, and other parts in contact with the puriform matter, and in the way of the spreading disease is generally niuch disco- loured, softened, easily torn, and sometimes par- tially destroyed. In some cases the muscles are paler, in others darker, and more livid, than na- tural. In rarer instances, the adjoining bones and more resistant structures are also affected. (See Inflammation, Diffusive.) 19. 3d, Abscesses coiiseiiueiU upon infiummation of Imver grades of iiilensitij. — 'l"he more slow and obscure the progress of inflnmtuation, the less marked are the signs of irritation ])receding and accompanying abscesses. It is not uncommon to observe, in lymphatic and phlegmatic tempera- ments, fluctuating tumours of various size^-, both superficial and dccp-scated ; without any consider- able pain or increase of animal heat, either ante- cedent or subs((]ucnt to their formation. Puiulent collections, of a chronic and indolent character, generally proceed froin a low but continued state of irritation, or from reiterated excitation of so low a grade as scarcely to influence the sensibility of the part ; and occur in constitutions of weak vital ABSCESS — Chron resistance and defective restorative energy. On the other hand, the abscesses described in the pre- ceding sections result from inflammaiion of a more or less acute character, occasioned by active sti- mulation or deleterious agents, and generally affect the system in a more or less active manner. 20. Owing to the low grade of irritation in the affected part, the vessels are but little, and often scarcely perceptibly, injected. The abscess, in place of commencing with a number of distinct centres or foci, appears at first as a single isolated collection in one or more of the cellular areolae, and presenting, from the commencement, a mani- fest fluctuation. In some cases, this appearance of the affected part is less that of true phlogosis than of a deviation from its nutritive actions. The tissues, instead of attracting, in virtue of their vital endowment, the nutritive particles ; and the vessels, instead of imparting them in an appro- priate condition, and exhaling a fluid suitable to the. healthy state of parts, — are so far changed as to fail in the performance of these actions ; the vessels furnishing a fluid of a certain kind, appa- rently composed of the particles or globules which, under the influence of healthy vital en- dowment, would have been separated from the circulating fluid for the nourishment or growth of the tissues, and of the watery exhalation destined to lubricate them, and render them fitted for theii functions. 21. In the chronic varieties of abscess, the pus, being secreted under the influence of a lower grade of excitation, differs from that previously described (>S 7, 8.). It is frequently yellowish, serous, transparent ; containing tiocculiof an albuminous or fibrinous nature, and whitish, opaque appear- ance : sometimes it is mixed with minute shreds of cellular-like substances. In other cases it is nearly analogous to mucus, from its thickness and viscosity. In some subjects, when very slow in its formation, it assumes a greater consistence and opacity, resembling half-congealed lai-d or liquid honey; and the tumours which it forms seem to constitute a connecting chain between pure abscesses and meliceious or steatomatous cysts. These latter differ in no respects from abscesses devoid of active inflammation, but in the greater consistence of the matter they contain : and in some cases, as M. Dupuytren remarks, it is diffi- cult, if not impossible, to distinguish between them. 22. Owing to the extreme slowness of their formation, and the absence of acute iriflammatory action, the farietes of the present kind of abscess have a more distinct organisation than those of the first species. Vascular injection and red- ness are here seldom observed exteriorly to the riist enclosing the purulent collection. The skin cover- ing the tumour, and through which the fluctuation is readily felt, is generally free, moveable, and unaltered. All the morbid action seems concen- trated in the diseased membrane enclosing the matter. This membrane or cyst is, internally, of a reddish grey tint, and more or less intimately connected with the surounding structure. It is in some cases soft, thin, and cellular; in others, thick, strong, and of a cellulo-fibrous, oi' even fibrous, structure. The slower the tumour is in enlarging, the more liable is the cyst to undergo change, and to modify the state of the matter it contains: and, hence, abscesses of a very slow or chronic kind often approach slowly but nearly ic, ITS Pathology. IS to the characters of several other encysted tu- mours. 23. The purulent collections which form around foreign bodies, that occasion but little irritation, generally belong to the present kind of abscesses. They are always lined with a firm cellular cyst, analogous to that enclosing the foreign body itself. Tiie abscesses which proceed from bodies occasion- ing great irritation are preceded by great pain and iiiflanmiation, and belong to the preceding kind of abscess. 24. 4th, Of symptomatic abscesses, or cnllectinvs of matter at a distance J rom the places wliere the piis is first formed. — In the foregoing sections I have considered the formation of abscesses in, and their limitation to, the primary seat of iiritation : but if the parts affected are surrounded by a loose areolar cellular tissue, readily permeable by the matter as it is formed ; and especially if the state of vascular action and vital energy of the frame are insuflficient to the production of coagulable lymph around the inflamed centre ; the matter gradually finds its way in the course of the cel- lular structure to adjoining parts, particularly to those which are more dependent, infiltrates them, and forms more or less distinct and fluctuating tumours at a distance from the primary seat of inflammation. Instances of this kind of abscess are furnished us in diseases of the hip-joint, and in ca>es of inflammation commencing in some or one of tlie vertebiffi, or their fibro-cartilages. In this latter case, if the disease commences in one of the dorsal vertebras, the purulent fluid may accumulate under the pleura, infiltrate the adjoin- ing cellular tissue, and, following the direction of the ribs, appear at some part of the side or back, or even near the sternum, far from its origin. When the inflammation attacks one of the dorsal or lumbar vertebra;, or intervertebral structures, it may travel in a similar manner behind the pillars of the diaphragm, proceed in the course of the psoffi and iliac muscles, following the cel- lular tissue behind the peritoneum, and appear exteriorly, most frequently under the crural arch, but sometimes through the inguinal ring. In other cases it proceeds to a shorter distance, and points at the sacro-iliac symphysis, or in the angle between it and the spine ; or it may extend down the pelvis in various directions, following the cellular substance surrounding the vessels and nerves. Thus it may pass through the ischiatic notch, forming an abscess at the internal part ol the gluteal muscles ; or along with the great sciatic nerve, and point on the superior and pos- terior part of the thigh ; and, lastly, it may find an issue in the perineum, at the margin of the anus, or into the rectum, or even into the vagina. In some rare instances a double tumour and open- ing are formed. In the case of a female by whom I was consulted, the matter had found its way to the integuments of the sacro-spinal angle of the loins, where it was punctured by a surgeon, and yet had also burst its way into the vagina. In the case of a groom whom I attended, a tumour formed at the sacro-iliac symphysis, below the crural arch, producing the most violent and pain- ful tumefaction of the limb, owing to tiie pressure of the matter on the nerves and veins ; and the matter afiervvards burst into the lower part of the sigmoid flexure of the colon. 25. 'Jhe matter proceeding from abscesses symp- 16 ' . ABSCESS— CoNSEcu tomatic of inflammation and ulceration of bones or cartilages is generally greyish, thin, mixed with albuminous flocculi, minute clots of blood, and portions of phosphate of lime. It exhales a nau- seous odour: but this characteristic is present only after tlie opening of the tumour, and when the air has access to the cavity. 26. If we examine the cavities of symptomatic abscesses, and trace tiiem from their origin to their outlet, we shall find, in the former situation, the cartilages and bones profoundly changed : the bones are softened, friable, changed to a greyish black, partially absorbed and carious, and their periosteum destroyed. From this origin of the disease is formed a channel or sinus, traversing the cellular structure frequently in the course of the large vessels or muscles, and terminating with the external outlet of the tumour. The whole of this canal or sinus is usually surrounded by a softened, friable, or lardaceous state of the tex- tures; and lined with a smooth, thick, firm, cel- lular, or fibro-cellular membrane, which in some eases is of a fibro-cartilaginous structure. At the lower part, the canal generally dilates into a con- siderable cavity, sometimes irregular or sinuous in its form, and lined with the membrane usually found in the more chronic kinds of abscesses. 27. 5th, Of consecutive abscesses ; or collections of matter found in situations consecutirelii to its formation in distant parts, between which there er- ists no communication, — It has been not infre- quently remaiked, that inflammation of a part has taken place, and has gone on to suppuration ; that the matter thus formed has been absorbed ; and that it has subsequently formed in some other viscus, generally in an internal organ. The nature and procession of the morbid phenomena now enounced have led to some inquiry, particularly in recent times. The circumstances in which consecutive abscesses occur in practice are the following : — Inflammation of the internal surface of the uterus, or of its veins, or of both tlie substance of the uterus and veins, occasionally takes place after child-birth, and terminates the life of the patient. On dissection, purulent infiltrations or distinct collections of pus are found, in one case, in the lungs; in another, in the liver; in a third, in the substance of the brain ; in a fouith, in the capsules of the joints ; and, in a fifth, in both the lungs, liver, and perhaps, al-io, in the joint*. A man, from injury of the head, has inflammation of the sinuses of the brain, followed by all the symp- toms of a vitiated state of the circulating fluid, terminating in death; after which, abscesses, or purulent infiltrations, are found in the liver or lungs. A similar procession of ])honomena oc- casionally results from phlebitis consefpient on blood-letting, or other causes; also duiing the suppurations following amputations, particularly when the matter is confined on the face of the stump, by the adhesion of the integuments which liad been drawn over it. A child is seized with severe or confluent sniall-pox ; and during, or sub- sequently to, the secondary fever, fluctuating tumours form in the joints ti'om matter accumu- lated in their capsules. Upon dissection, the cartilages are found eroded ; and, in other rare cases of this kind, purulent collections are found in the internal viscera. In other instances, ab- scess disappears from external parts; the patient TIVE, ITS I'aiIIOLOGV. sinks with low fever; and, upon dissection, col- lections of pus are found in internal organs. In cases of this description, the following require notice : — 1st, The state of the vital energies pre- ceding or during the occurrence ; 2nd, Thesymp- toins characterising the progressof the phenomena ; and, 3rd, The nature of the results. 28. 1st, The energies and vital resistance of the system are generally greatly impaired, either from pre-existing or concurring causes, in cases where consecutive abscesses form. (See article on Iii- flammationof Veins.) 2nd, The depression of the powers of life increases as the disease advances. The nervous system is seriously aflfected ; the cir- culating fluid betrays change in its appearances, after its emission, or after death ; the soft solids lose their vital elasticity and cohesion ; the surface of the body and countenance become du=ky and livid ; and low delirium, rapid and weak circula- tion, &c. take place. 3rd, The purulent matter is generally either infiltrated into the parenchy- matous structure of some organ, or collected into one or more distinct abscesses, or it is eflfused into the cavity of one or more joints. When the mat- ter is infiltrated into the texture of an organ, the infiltrated structure is very frequently also soft- ened. The purulent collections that are found in other cases generally have no distinct cyst, and the surrounding substance of the organ seldom presents any marked redness or injection of its vessels, or indeed any remarkable change, except- ing in some instances a slight softening. The matter is usually found in several distinct ab- scesses or collections, varying from the size of a small seed to that of an egg, or even larger. Sometimes the immediately surrounding structure seems impacted around the abscess, but not other- wise changed. The purulent matter itself varies but little from that which is observed in the ab- scesses described in the first section. (^ 6, 7, 8.) it is occasionally of a darker or greenish hue, particularly when found in the liver. 29. As to the Origin of these purulent collec- tions some doubts may be entertained. That they are very intimately connected with the primary inflammation and formation of matter in other parts of the system, cannot be doubted, but in what way cannot be so readily stated. It seems to me extremely probable, from the attentive ob- servation of the progress of a number of such cases which have come before me in practice, that, owing to depres-ed vital energy, and defi- cient resistance of the frame, purulent matter passes into and vitiates the blood; that the morbid condition of the circulating fluid, thus induced, depresses still lower the already weakened neivous powers; and that the irritating matters cairied into the circulating current change the state of the capillaries of paienchymatous and some other organs, so that they secrete purulent matter without any evident sign of previous or accom- panying inflanmiation. Several French patholo- gists suj)pose that the purulent matter conveyed into the blood circulates without coinbining with it, and is merely deposited by the capillaries, or separated by them, from this fluid in parts ; the vessels and texture of which are most disposed to permit its elimination, or the best constituted to admit of its deposition. It is difficult to deter- mine >n which of those ways the consecutive abscess is foimcd. Indeed, both may ap[)roximate ABSCESS — ITS Progress. 17 the truth, the consecutive formation of pus arising, in one case, from the irritation occasioned by tlie presence of morbid matters in the blood ; and, in another, chiefly from the separation or secretion of it in the parenchyma of an organ, without any previous or attendant irritation. 30. II. Of the Progress and Terminations OF Abscesses. — At any period of its existence, the inflammatory action in an abscess may cease, and the matter wiiich lias been formed be absorbed. In these cases the purulent matter is carried into the circulation ; and, whether the inflammation is primarily and gradually extinguisiied in the abs- cess, or whetlier intense pain and inflammation, developed in some other organ, exercises on the first centre of mischief a true revulsion, the ab- sorption of the pus is only consequent upon the subsidence of the local signs of inflammation and congestion. The part loses its turgescence, red- ness, increased heat, and tumefaction, and is re- stored to its healthy state without any deformity or cicatrix. In these cases the absorbed matter is eliminated from the circulating mat put in practice. 56. With this view, drastic purgatives may be prescribed, when the state of the patient admits of them, and next to them, such diuretics and diapho- retics, as may be appropriate to the circumstances of the case. Contemporaneously with the use of those internal derivatives, external applications should be employed, particularly those which pos- sess discutient, resolvent, and styptic properties. Frictions with stimulating substances, as ammo- niacum, iodine, iodide of potassium, &c. ; cold, warm, or tepid afTusionson the part, either of sim- ple or mineral waters, or of sulphureous or saline, natural or artificial, may likewise be tried con- jointly with the internal means. But this energetic plan of treatment , — this combination uf the re- vulsive and discutient practice, -^— this methodus 1 erturhatrix, is not applicable to all cases. There are many circumstances connected with the seat and condition of an abscess, and with the state of the different functions, that either altogether forbid its employment, or require important modifications and adaptations of it. 57. Thus, abscesses preceded by acute or active inflammation, are rarely susceptible of being ab-orbed ; the 0[)ening of them, therefore, is almost inevitable. Chronic abscesses, which are generally provided with thick cysts, also admit not of removal by this practice; it being generally reijuisite to excite a new action in their parietes, which may modify their texture, and render them susceptible of contracting the adhesions requisite to their obliteration. The majority of purulent collections which are removed by absorption, is such as form rapidly, without much previous in- flammation, and in debilitated habits, or in those weakened by pre-existing disease. In persons oi this description, the excitement or iriitation of the kidneys, or of the inucous surfaces, will often over- come the irritation existing in the seat of abscess, and consequently promote the absorption of the pus it contains ; at the same time that the fluid abundantly secreted by the parts artificially ex- cited will assume, in consequence of the state of the patient, a puriform character. (Dupuytren.) But, in the majority of instances of this kind, it is necessary that the artificial irritation or excitement shall be greater than that previously existing in the seat of abscess, and that the organs or parts in which it is induced be in a sound state ; otherwise the revulsion cannot be either successlully or safely practised. However we may explain the mode of action of revulsantson abscesses of this kind, there can be no doubt that it is alioost entirely in them, and particularly when they are seated in lymph- atic glands, that we can hope successfully to employ this plan of cure. 58. When the evacuations procured from the first passages, and from the kidneys and skin, have no efl'ect upon the tumours, and particularly if the stomach and bowels seem to support their action with ^difficulty, they must be aban- doned, and recourse be had chiefly to the more direct means of cure. The local excitants, as iodine, the sulphureous douches, frictions with mercurial, camphorated, and terebinthinated lini- ments, and the repeated application of blisters for a short time, are only suited to the chronic kinds of abscess, where little or no inflammatory action exists. But these remedies should be watched, lest they increase the heat and inflam- matory action of the external or superficial part of the tumour, and thus occasion their external opening. 59. In the majority of abscesses, it is requisite to keep three facts in recollection : 1st, that the inflammatory action in their parietes does not cease on the formation of the purulent collection ; 2d, that an abscess is generally a complication of this inflammation, and of the retention of purulent matter in the inflamed parts which formed it, the inflammatory action being still present, although in a somewhat modified state and grade, and still continuing to form this matter ; and, 3d, that the existence of pus does not necessarily or materially change the nature of the action which produced it. The therapeutical indications to which these facts necessarily lead are important, particularly as they show, w hat, indeed, has been proved by expe- rience, that antiphlogistic remedies, especially those of local application, should not be laid aside with the supervention of suppuration. In the majority of cases, and particularly when increased heat of the part still continues, this class of local remedies should be employed with an energy in proportion to the activity of the local symptoms. As long as pain, redness, heat, and tension remain around the abscess, so long should leeches, or other modes of capillary depletion, directed to its vicinity, be had recourse to, particularly if the state of the patient oflfers no urgent indications against the practice. c 3 22 Emollient and astringent applications should also be constantly employed. These will generally reduce the inflammation of the surrounding tissue, favour tlie resolution of tiie parts not yet suppu- rated, limit the quantity of the morbid secretion, and favour the maturation of the absce'^s, so that it may be opened with the best hopes of success. In some cases, the use of these antiphlogistic mea- sures will give rise to the absorption of the puru- lent matter, even after this had been attempted to no purpose by means of revulsants. 60. It should be recollected that the surfaces of abscesses are the constant seat of two kinds of action ; one of exhalation or secretion, the other of absorption ; and that wliatever excites or irri- tates them increases the former, and whatever soothes or diminishes this irritation lessens it, and favours the latter action. This consideration should lead us strenuously to adopt a continued antiphlogistic and soothing treatment of the af- fected part, until the thinning of the skin at the most prominent part of the tum.our indicates the necessity of opening it. 61. In symptomatic abscesses, the treatment should chiefly be directed to the primary seat of disease ; for as long a^ the mischief continues or advances there, ihe purulent colleciion increases, and diminishes as it subsides. Thus, the abscesses that point near the anus or crural arch, in conse- quence of disease of the vertebrse, will sometimes disappear after the use of active means directed to the original malady, and judiciously adapted to the state of the patient. 62. Consecutive and spreading abscesses re- quire a very different management from that now pointed out. These generally occur in persons of an unhealthy habit of body, or who have been weakened by acute disease ; or they are the result of an adynamic or ataxic and spreading inflammation occasioned by a specific or poison- ous agent ; and they are not unfrequently the consequence of the inflammation of veins, or of the presence of morijid secretions or purulent matter absorbed into the circulation (§§ 25 — 28.), or of the transfer of irritation from a distant part. But from whatever cause they may proceed, — and they may, and occasionally do, proceed from either of those sources, — deficient constitutional energy, and vital resistance to the influence of the exciting cause, with a marked disposition of the structures to be invaded by it, and to partici- pate in the morbid action it excites, are their constant concomitants ; requiring the energetic use of those means which are the bcit calculated to rouse the powers of tiie frame, to restore the deficient tone of the capillary vessels, and to thus enable them to form coagulable lymph, by which the spread of the local mischief may be limited. Instead, therefore, of having recourse to anti- plilogistic remedies, the state of local action, and of constitutional power, ref|ui res atonic, stimulaiing, and restorative treatment ; conjoined witii ilie means best calculated to promote the functions of all the abdominal viscera, so that morbid matterb may be eliminated from the circulating current, and healthy nutritious elements conveyed into it ; and with a pure air to perfect the changes which it under;,'oe8 during respiration, and whicli are requisite to the continuance of the functions of life. 'l"he treatment necessary in such cases is fully iletailed in the articles on Inflammation of ABSCESS — Tbeatment of. Veins, on Spreading Inflammation of the Cellular Tissue, and on the treatment of Ani- mal Poisons. 63. 2d, Of opening abscesses. — When we fail in procuring the absorption of the puriform mat- ter, its artificial discharge will, sooner or later, be required, when this can be accomplished. Certain abscesses require a more immediate performance of this operation than others, and more particu- larly the following: — 1st, Abscesses proceeding from the escape, into the substance of any organ or part, of irritating secretions or excrementorial matters, as the urine, or fascal substances. 2d, Abscesses preceded by very acute inflammatory action, and occurring in cellular or adipose struc- tures, 25 ;he margin of the anus, the sides of the neck, or the groins. 3d, Purulent collections deeply seated, or confined under fasciae or aponeu- roses. 4tl), Abscesses formed in the parietes of the splanchnic cavities, in order to prevent the chance of their breaking internally. 5th, Abs- cesses formed in parts througii which large nerves and blood vessels pass, anil on which tlie purulent matter occasions a painful and injurious pressure; as abscesses in the neck, and underneath the sterno-mastoid muscle, at the top and inside of the thighs and arms, &c. 6th, Abscesses which em- barrass the respiratory organs, and which press upon the larynx, pharynx, or trachea, or which endanger the integrity of those parts. 64. In all these tlie strict antiphlogistic treat- ment will be requisite, unless they are of the diffusive or consecutive kinds, with emollient applications, in order to limit the extent of the inflamed parts, to diminish their size, and to hasten their maturation ; and in many cases this mode of treatment must be continued for a considerable time after the discharge of the matter, in order to limit or prevent its re-accumulation, and to pro- mote the collapse and diminution of the parietes of the abscess. The cases where it will be fre- quently necessary to retard the period of dis- charging the purulent collection, are chiefly those in which i( is formed in the internal viscera, as the liver, spleen, kidneys, lungs, &',c. ; respecting which 1 have treated fully under their appropriate heads. 65. Chronic abscesses should be opened as soon as it is shown that their absorption cannot be accomplished ; or when they augment in bulk under the disions observed in the mucous surface of the digestive tube, or in other situations, increased vascularity of the brain and its meninges, fre- quently with effusion of fluid in the ventricles or between the membranes, was found upon examin- ation after death. 10. II. The Treatment of the morbid effects of abstinence is very obvious, yet considerable care is necessary to its successful issue in very urgent cases. Nourishment should be adminis- tered cautiously, in a very small quantity at a time at first, but frequently. It ought to be bland and farinaceous : animal food may be en- tered upon subsequently, and the quantity gra- dually increased. The animal warmth should be promoted, at the same time, by the usual exter- nal means — by frictions and warm applications; and the bowels assisted by the occasional use of bland enemata. Soups may be allowed early in the treatment, but in a small quantity at a time, ftlilk IS often prejudicial, unless diluted and made into gruel with some of the farinaceous articles of food. Internal stimulants are seldom required, unless when symptoms of cerebral or nervous irritation exist, when they may be given; parti- cularly the preparations of ammonia, the aethers, camphor, vegetable bitters and tonics, at first in very moderate doses, in conjunction with sinall quantities of an anodyne, as the extract of hop, the extract of hyoscyamus or of opium, the paregoric elixir ; and by warmth, frictions, and stimulating applications to the cutaneous surface and lower extremities. These means will gene- rally succeed in removing the effects of simple abstinence whilst they admit of removal. The treatment of the effects resulting from the con- junction of other causes with the one now discussed, is considered under their respective heads. Bibliography Curiie, Medical Reports, 4ioed., vol i. p. 304 — Willan, Miscellan. Works, by A. Smith, p. 437. — Barras, Traite sur les Gastralgies et les Enteralgies, &c., 3d ed. 8io, Paris, lS2d.—Pwrrt/. Precede Operatoire dans lExploration des Urganes, &c. &c., 8vo, Paris, 183!, p. 36H.—P. M. Latham, On the Diseases in Ihe Milbank Penitentiary, 8vo, Lond. 1824. — Andral, Precis d'Ana- tom. Pathoiog., t. ii. p. 7l>9 Rostait, Diet, de Med. t.i. p. l.')4 Ch.Londe, V>icl. de Med.et Chir. Prat., t. i. p. 103. Cnllard de Martigny, in Magendie's Journ. de Physiol., &c., t. viii.p. 152. !■ ACNE. 'axvi. Derived, according to Cassius {l<:at. et Med. Quest., &.C., Prob. 33.), from aiifji.il. SvN. "lovBof, Gr. Varus, Lat. Phii- dracia Acne, Sauv. Gutta Rosea, Darwin. lonthus. Good. Bouton, Couperose, Fr. Die Finnen, Ger. CarbiDicle, Stoue-pock, JVhelk. Classif. 3. Class, Diseases of the San- guineous Function ; 2. Order, Inflamma- tion (Good); 7. Orc/er, Tubercles (Willaii and Batemaii). IV. Class, 1\'. Order (Author, seethe Classification). 1. Defin. Hard, inflamed, tubercular tumours, suppurating very slowlii, occurring chiefly in the face; sometimes, also, on the neck and slunilders. 2. I. Description. One or more, sometimes a 1 number, of these tubercles appear, generally in 2B ACNE — Simplex — Indukata — Rosacea. succes>ion, in tlie face, and sometimes on the neck, shoulders, and breast, but never lower ; remain permanent for a considerable time; and sujjpurate slowly and imperfectly, leaving a dark or livid mark, whicli gradually disappears. They occur chiefly in persons of tiie sanguine temperament ; commencing at the period of puberty, and gene- rally disappearing after thirty or thirty-five. They are common to both sexes, but are most frequent and numerous in the male sex. 3. This is one of the most constant and unva- rying in its characters of any of the afFections of the skin ; but writers upou this class of diseases differ widely in respect both of its particular cha- racter and seat. Wiixan, Pi.enck, Bateman, and Thomson consider it a tubercular affection ; whilst ALrBERT, BiETT, and Rayer view it as pustular. I believe, however, that both opinions are in some respects correct; and that in cer- tain forms or states of acne the tubercular change is predoininant, little or no suppuration taking place, but a state of slow inflammation giving rise to a continued exfoliation of the cuticle, or formation of thin scabs on their apices ; and thus they slowly disappear; whilst in others the pustu- lar character is very distinct, but always preceded by the characteristic tubercular hardness. This affection may be viewed, therefore, as forming an intermediate link between the tubercular and pus- tular eruptions. 4. In respect of the particular tissue in which this disease is seated, some difference of opinion also exists. The greater number of writers on the pathology have considered this disease to be seated in the proper structure of the cutis vera ; many of them admitting, at the same time, an affection of the sebaceous follicles very nearly resembling it. Mr. Plumbe, however, attributes it entirely to obstruction and chronic inflammation of these follicles. 1 believe that this opinion is too restricted ; and that, whilst one form of acne evidently depends upon this cause, others are es- sentially disease of the cutis vera. 5. Spec. i. Acne Simplex, Himple Acne. Syn. GiUta Rdsea Hereditaria, Darwin. Dartre Piistnleiue Miliare, Alibert. lonthm varus s'unplex, Good. Simple acne affects most frequently young sub- jects at the period of puberty, and particularly females. They generally appear on the forehead, shoulders, and upper part of the thorax, and are liable to recur at the menstrual periods, especially in cases of dysmenorrhoea. Many of these vari do not proceed to suppuration, but slowly subside. They are very comtnordy developed in succes- sion ; commencing with small, hard, and inflamed tubeicles, of the size of a pin's head. 'J'hese continue to enlarge for three or four days, and the inflammation becomes more apparent. In seven or eight days they have reached their greatest size. 'I'hey are then dark red, sn)ooth, prominent, shining, hard, and slightly painful to the touch. After two or three days a small speck of matter appi ars on the apices of some of them ; and when these break, a thin humour exudes from the tubercular induration, and dries on its surface, forming a thin scab, which adheres firmly; but, after a few days, is loosened at the edges, and falls off; the tubercular hardness and livid redness gra- dually subsiding, and disaooearing after three or four vveeks. 6. In some persons this eruption recurs fre- ((uently at short intervals, the vari being more or less numerous ; in others it is more extensive, and never altogether disappears, although it is more troublesome at one time than another. When the vari are numerous, many of them undergo no suppuration ; but the sebaceous glands are often excited, giving the skin a greasy appearance. In many of these cases, several of the vari assume the characters of the next species. 7. Spec. li. Acne Indurata, Stune-pock. The tubercles are larger, more indurated and permanent than the foregoing ; and are apparently the consequence of a slower and more deep-seated inflammation. They often appear in considerable number, of a conical or oblong-conoidal form ; some of them assuming a roseate hue, and tend- ing to suppuration at their apices; others remain- ing in a hard, elevated state for a very long time, without any appearance of the suppurative pro- cess, or disposition towards it. In some cases, two or even more of them coalesce, and occasionally suppurate at their respective apices ; but one only may undeigo this change. As they continue they become more purple or livid, particularly when they have no tendency to suppurate. When they experience this process, the same process of scabbing and exfoliation, already described {§ 5,), is gone through ; but it sometimes happens that when they experience any irritation they may suppurate a second time. As they very slowly subside, they leave a purple or livid discoloration, and, occasionally, a slight depression, which is long in wearing off, and which sometimes never altogether disappears. 8. This species of acne generally is most fre- quent and numerous along the rami of the lower jaw, on the temples, the nose, and cheeks; also on the back and neck. They are frequently ac- companied by a greasy state of the skin, from an excited state of the cutaneous follicles; are commonly sore and tender to the touch ; and, when numerous, are in every stage of progress, giving tiie surface a spotted and variegated ap- pearance,— owing to the prominence and redness of some at their commencement, to the yellow points in those that are suppurating, to the scaly crusts covering those which have undergone this process, to the lividity of those that have exfo- liated or are subsiding, and to the discoloured depressions which others have left after them. 9. The general health seldom sufl'ers mate- rially from either the simple or the indurated acne, excepting as far as regards some pre-existing and concomitant disorder of the digestive func- tions. If fever, or acute disease, attack persons affected with these eruptions, the vari generally disappear ; but they frequently also re-appear upon its subsidence, becoming in some respects a criti- cal eruption. 10. Spec. iii. Acne Rosacea, Rosy-drcij), Syn. GiUta Rosea, Auct. var. Gutta Rosea Hepatica, Darwin. lonthus Coi-ymhiJ'er, Good. Dartre Pustulettse Couperose, Alibert. Goutte Rose, Couperose Rougeurs, Fr. Kiip- ferhandcl, Roth-nase, Ger. Carbuncled Face, The Jirst and second species, described above, might have been, with propriety, viewed as varie- ties of the same species; but this is a very dis- tinct species from the preceding. It consists of ACNE — Punctata — Syphilitica. 29 small, slowly suppurating tubercles, accompanied with a shining redness, and an irregular granu- lated appearance of the skin of the part aflected. This species commonly appears first at the end of the nose, and afterwards spreads from both its sides to the cheeks, which it never altogether covers. At first it is not uniformly red ; but is pale in the mornmg, and intensely red whenever the patient is excited or heated, and particularly after dinner, or drinking wine or spirits. After some time the texture of the cuticle is gradually thickened, and its surface granulated and varie- gated by the ramifications of cutaneous veins, and the suppuration of small, prominent vari, which successively arise in different parts of the nose and face. 11. This species of acne seldom appears before the age of forty, excepting in those addicted to the immoderate use of vinous or spirituous liquo'S, or who possess great hereditary predisposition to it. In advanced life, or in the worst of these case^, it sometimes spreads to the greater part of the face, even to the forehead and chin. The nose usually becomes very tumid, and of a fiery red colour, and sometimes is enlarged to an enormous size. The nostrils, in these cases, are generally distended, and their alse often fissured and divided into lobes. In advanced age, this species of acne becomes more livid ; and if any of the tubercles suppurate, they often ulcerate, and are indisposed to heal. In younger persons, who are attucked chiefly from hereditary disposition, it is often ac- companied with irregular red patches on the face, which are often smooth, devoid of tubercles, and accompanied with occasional slight exfoliations of the cuticle. These patches are extended, or aggravated by intemperance in food or drink. 12. Spec. iv. Acne Punctata, Maggnt Pimple. Sy n. Crimones, Ai\ct. va.t.i Punctce Mucosce, Darwin, lontlnis Varus piinctutus, Good. Der Gries, Ger. Tannes, Fr. Grubs, Kng. This is, in my opinion, the only species of acne which is seated in the follicular glands ; and, al- though often observed as the only form of erup- tion, it also is frequently found intermingled with the species already described, particularly the first and second. It consists of a number of black points, surrounded by a very slightly ele- vated border of cuticle, proceeding from con- creted sebaceous matter accumulated in the glands and their ducts, whence it may be squeezed out iii a vermicular form, the external extremity being dark from its exposure. In consequ-ence of the accumulation and distension, these glands some- times become inflamed, and give rise to small tubercles, with minute black points in the centre of their external surface. J'hese tubercles sup- purate partially, as the preceding, whilst others remain stationary for a considerable time, and several are distended witlinut even being in- flamed, ^rhey are not infrequently mixed with tubercles without the black punctae, which are evidently owing to a similar obstruction, and to a more complete closure of the outlet of the ducts. In this species of acne the accumulated secretion may be squeezed out. 13. Spec. v. Acne Syphuitica, Venereal Acne. Syn. Gutta Rnsea iSyphiliiica, Plenck. Sy- philide Pustuleuse MUiuire, Alibert. Amongst the very numerous forms of cutane- ous affection in wliich secondary syphilis may manifest itself, this may be enumerated as one, although not a common one. Plenck has given a veiy correct description of it. This species nearly resembles, in the size and form of the pustules, the acne rosea. It chiefly afl^'ects the forehead, face, neck, and upper part of the trunk. The vari are round and conical, with an inflamed, copper-coloured, tubercular base and areola. They suppurate slowly at their apices, where a yeliowi^h-brown scab is formed ; and leave a dirty, dark, and slightly depressed mark. They present a dark colour, and more perma- nent tubercles, on the nose, the adjoining parts of the cheeks, and forehead, than elsewhere ; and are there observed in discoloured patches, in every stage of their growth. They are frequently found complicated with other eruptions, chiefly of a scaly character, on diflfereni parts of the body ; are always a secondary venereal affec- tion ; and although sometimes unaccompanied with other syphilitic symptoms, are most com- monly attendeil with ulcerations in the throat, with nodes, inflammation of the periosteum, and nocturnal pains. 14. II. Diagnosis. — Acne can be confounded only with ecthyma. The tubercular pustules of the former, however, are small, slowly developed, with an indolent and hardened base ; whilst the pustules of ecthyma are large, superficial, unac- companied with chronic induration, and forming thick scabs, more or less prominent, much less adherent, and such as never are formed in acne. The characters of syphilitic acne, the antecedent and accompanying symptoms (§ 13.), the colour and predominance of the eruption about the nose and commissures of the lips, the tendency of the vari to ulcerate, and the associated affection of the throat, and sometimes of the periosteum, suf- ficiently mark the nature of this species of the disease. 15. III. The PROGNOsispf acne regards merely the persistence of the eruption, and the incon- venience attendant on it. Acne simplex and punc- tata are often of comparatively short duration. The acne indnrata is mucii moie tedious ; and in some constitutions will resist, even for many years, every mode of treatment, particularly if the causes in which it not infrequently originates be over- looked. Acne rosacea is seldom or ever cured, excepting by a strict attention to regimen. 16. IV. The Causes of acne are extremely va- rious. The species simple < ,imlurala, and punc- tata usually occur during youth, in the sanguine and bilious temperaments, and disappear about middle age. They are very generally connected with chronic affections of the stomach, bowels, and liver; with ha;morrhoids ; in some, with a tendency to phthisis ; and in females with painful and scanty menstruation. These S|)ecies, as well as the acne rosacea, evidently arise in many cases from hereditary predisposition ; and are most common in cold and moist climates, — probably owing to the use of ardent spirits. Excesses at table, cold indigestible articles of food, sedentary habits, fits of passion, anxieties of mind, and the depressing pa'-sions, cold drinks — particularly if taken when the body is oveiheatetl — the use of irritating cosmetics, and disorder of the digestive functions, are very common causes of these eruptions. I believe, however, that the simple, indurated, and punctated species of acne are 30 ACNE — most frequently occasioned 1)\' uterine irritation, and excitement, or an imperfect performance of the uterine functions ; by constipation ; by torpid conditions of the liver; and by the injurious ad- diction to onanism. 17. V. Treatment. — In the treatment of these affections, our chief attention ou^ht to be directed to their pathological relations and cau'^es. These latter must be removed as far as may be done ; and the former should both guide our indications, and direct our means of cure. Tiie apprehensions entertained by the older writers, of proilucing internal disease by the sudden repulsion of the eruption, were founded on the results of observa- tion, although explained by partially inaccurate or unsound pathological views. Affections of the stomach, bowels, chest, and head, have been thus induced, and been relieved upon a re-appear- ance of the eruption : but such consecutive dis- eases are more common after the repulsion of other eruptions. We should, however, as being both the safest and the most permanent method of cure, direct our remedies to the constitutional or internal relations, as well as to the external manifestations of disorder. In the treatment of this, as well as many other diseases, the causes, the state of the habit and constitution of the patient, its morbid relations, and its duration, are severally to be kept in recol- lection. 18. 1st, Treatment of acne simpleT. — Indeli- cate constitutions, the chief attention should be directed to the state of the digestive function'^. These should be promoted by gentle aperients, combined with tonics, and the functions of the skin promoted, by preserving a free transpiration on its surface. With this view, sulphur may be combined with magnesia, or with cream of tartar, and confection of senna, and t;iken in a sufficient dose, at bedtime, to procure a full evacuation in the morning, or any one of the formulae (Ap. Nos. 82. 89. 98.) may be had recourse to. These may be occasionally changed for a powder with rhubarb, sulphur, and magnesia, or for the ex- tract or decoction of taraxacum, with carbonate of soda or sulphate of potash. If the functions of the liver are torpid, the following may be taken for a few nights ; — No. 6. B Pilul. Hydrarg. Cliloridi Coinp. 3). ; Fellis Tauri Iiispiss. gr. xv. ; SapiinU Castil, gr. x. ; Extr. Ta- raxaci .5 j. M. Fiant Pilulas xviii., quarum capiat binas vel ires hora soinni. After tiie bowels have beea evacuated, and tlie secretions brought to a healthier state, the dilute mineral acids, either alone or with hiiter infusions, may be taken through the day. 19. When the eruption occurs in young ple- thoric persons, and when it is in females attended with scanty and difficult menstruation, small hloo'l- letiings may be practised ; in the latter by the application of leeches to the superior and internal parts of the thighs. In more delicate females the functions of the lower bowel* are to be promoted by the piiula aloi's cum myrrha, combined either witli |)ilula ferri composita, or with the extractum gentiana;. When the eruption is obviously con- nected with imperfect and painful menstruation, the use of the warm salt water hip-hath, or of the hip vapour bath, or warm salt water pediluvia, after the application of a few leeches to the in- sides of the thighs, will be extremely serviceaiile. In such cases, the internal exhibition of the hi- Treatment of. bm-ate of soda, either in the form of pill or draught combined with camphor, the extractum taraxaci, or the extr. rutae, or, as directed in Form. Nos. 93. 184. 209. 254. will be found of great advantage. 20. In addition to these internal remedies, which require to be varied according to different pathological relations of the eruption, external applications will be necessary ; and when con- joined with the above treatment, or employed subsequently to it, no dread may be entertained of any injurious consequences from them. The ancients, particularly Celsus, Pliny, Aetius, Paiu.us, Actuarius, &c., recommended lotions and liniments with vinegar and honey ; and these sometimes combined with turpentine, emulsion of bilfer almonds, myrrh, alum, soap, Cimolian earth, the bruised roots of the lily, the cyclamen, narcissus, and the fruit of the wild vine ; the most of them calculated to be advantageous in many states of the common forms of acne. 21. If the tubercles are much inflamed, and inclined to be pustular, mildly stimulating appli- cations are most serviceable, as dilute spirit, or the pyroligneous acetic acid, or liquor ammonia acetntis, with rose or elder-flower water. In the more indolent cases, or when the skin can bear an augmented stimulus, Willan and Bateman recommend from half a grain to a grain, or more, of the bichloride of mercury, in each ounce of the vehicle ; or a drachm or more of the liquor potass(B, or of the hydrochloric acid, in six ounces : and Thomson advises that the emulsion of bitter almonds, containing ten minims of hydrocyanic acid to each fluid ounce of the emulsion, should be the vehicle adopted. The solution of the sulphuret of potassium, in the proportion of a drachm to twelve or sixteen ounces of water, may also be employed ; and, in the more obstinate cases, the baths directed in Form. No. 14 — 17. may be had recourse to. The solution of the hy- drochlorate of ammonia, either alone or with the bichloride of mercury, is often serviceable. 22. l"he lotion from which 1 have derived the greatest advantage in practice, and which I hare found the most generally applicable, is a solution of the hihorate of soda in rose or elder-flower water, or in water which had been poured in the boiling state over sulphur, and allowed to infuse for ten or twelve hours. The borax may also be dissolved in equal (juantities of elder-flower water and honey, and used as a lotion in the more chronic cases. 23. 2d, Treatment of acne indnrata. — In young and plethoric subjects, or in females, when the eruption is accompanied with a scanty and pain- ful menstruation, the treatment already pointed out (§ 19.) should be put in practice. When we suspect that sexual irritation or masturbation is connected with the causation of the erii|)tion, early rising, mental occupation, the use of genth; cooling aperients, of soda combined with small doses of camphor, soda water, sulphur with soda or antimony, are the most serviceable internal remedies. After these, the mineral acids, the sul|)liiireous mineral waters, and gentle vegetable tonics, will be useful. Where the eruption is de- pendent upon torpid function of the stomach, or liver, or bowels, mild alteratives, exhibited at bed- time, as the pills already prescribed (§ 18 ), and gon'le tonics through the day, will be refpiired. In a most obstinate case, which some lime ago ACNE — Treatment of. 31 came before me in a lady, whom all the prac- titioners who had acquired a reputation in the treatment of cutaneous afi'ections had attended, strict attention to the state of the digestive and uterine functions removed the eruption. The fol- lowing electuary has sometimes been used by me in this and other obstinate cases. No. 7. B Potassse Bitart. in pulv. .1 j. ; Bi-boratis Sodae 3 ijss. ; Sulphuris Pra?cip. J ss. ; Contectioiiis Sennae et S) lup. Ziiigiberis aa 3 jss. M. Fial Electuarium, cujus capiat Coch. umim minimum omni nocte. At the same time a solution of two grains of the bi-chloride of mercury in four ounces of the com- pound tincture of cinchona was prescribed, and a teaspoonful of it directed to be taken twice daily, in half a glass of infusion of chamomile flowers. The lotion already recommended (§ 22.) was also employed. In cases similar to this, and, indeed, in all those accompanied with disorder of the digestive functions, cold or drastic purgatives ought to be avoided ; and the bowels should be regulated with the pilula aloes cum myrrha, com- bined with a little blue pill, or with the pill pre- scribed above (§ 18.) ; or theext. aides purif con- joined with the e.vtr. gentianse ; or the electuary now directed. Advantage will also be obtained from a draught of infusion of cascarilla, or of ca- lumba. with carbonate of soda or potass, or the liquor potassae, taken twice a day. 24. As to eiternal applications in this form of acne, little need be added to what has been already stated. The lotions with the bi-chlorile of mercury, or with the borax, are most to be de- pended upon, particularly when dissolved in an emulsion of bitter almonds, or in camphor mix- ture, with the addition of about twelve minims of the hydrocyanic acid to each ounce of the vehicle. In cases where the tubercles have at ail suppurated, it will be advisable to open them with the point of a lancet befoie the lotion is used. 25. At the commencement of the eruption, mild emollient poultices and fomentations are useful ; and afterwards, particularly i i the more obstinate cases, M. Biett, and ailer him 1\II\I. Cazexave and SciiEDEL, recommend the following ointments to be used, in order to promote the resolution of the tubercles : — No. 8. R Protochloridi Hydrarg. et Ammonias* (Sub- niur. Hydrarg.et Amnion.) 3 j — 3j.; Axungiae 3 j•Mi^ce. Of this ointment I have had no experience ; but the following I have employed with advantage in several chronic eruptions, and in two cases of this species of acne : — No. 9. R Siilphureti lodinEE gr. xli — xxiv. : Axungije 3j. M. Ambrose Pahe and Darwin considered that blistering successively small portions of the face was the most successful means of removing this very obstinate eruption. This practice has been employed at the hospital St. Louis, by IM. Biett, with great benefit. When the disease has disap- peared, he has derived great advantage from a douche of cold sulphureous water in preventing a return of it. 26. 3^, Tn treating the punctated species of acne, it will be frequently necessary to press out the accumulated and hardened matter from tiie follicles. 'J'he vapour bath, the warm sulphur bath, followed by fiictions either with a coarse * Prepared by subliming equal qnantilifs of the bi- chloride of mercury and hydrochlorate of ammonia. towel or a flesh brush ; and lotions such as have been already recominended, or a weiik solution of pui-e potash, or of ox-gall, or of sulphuret of po- tassium, also followed by frictions, are particularly indicated in this species of acne. 27. liiternatlu, the solution of the bi-carbonate of potash, or of chlorine, advised by Under- wood and WiLLAN, may likewise be employed. Sulphur, magnesia, soda, rhubarb, and the borate of soda, are also of much benefit. Dr. Thomson slates, that he has seen the skin completely cleared by the use of the following alkaline tonic for six weeks ; at the same time regulating the bowels: — No. 10. R Zinci Sulphalis gr. xxiv. ; Liqiioris Potassse 3 xij. Solve. Suniantur guttae xxx. ex cyatho aquiE, bis quotidie. It ought always to be observed, as a general prin- ciple, in this as well as in the other forms of acne, that attention to the secretions of the abdominal viscera, and to the general health, by promoting the dige-tive functions, will of itself, independently of external means, go far in promoting a cure ; and that, without such intention, no cure will be permanent. 28. 4th, The treatment of acne rosacea is gene- rally unpromising. It should always have a strict reference to the particular nature of the affection of the liver, or digestive canal, or both, with which this eruption is associated, and in many respects symptomatic. A. rosacea often precedes serious di-ease of the liver, more frequently co-exists with it, and most commonly indicates a congested and obstructed state of the viscus. To this organ, therefore, ought our remedies to be particularly directed. A modeiate blood-letting ; the applica- tion of leeches on the region of the liver ; and, if the eruption occurs in females, and is attended with obstructed or scanty menstruation, leeches also to tiie upper part of the insides of the thighs, or bleeding from the feet, and stimulating pe- diluvia, or the hip-bath ; the use of mild mer- curials, or alterative and deobstruent medicines, such as the pills previously described (§18.); the blue pill, or the hydrargyrum cum creta with soda and taraxacum ; Harrogate, Barege, and other sulpiiureous mineral waters; the decoction of dulcamara, lii|Uor potassaa, and chlorine or sul- phureous fumigatmg baths, are severally of advan- tage in some cases. But from none of these will any permanent benefit be derived, unless the regi- men presently to be noticed is rigidly observed, and the pathological relations of the eruption ap- pi'opriately treated. 29. Blood-letting in this, as well as the fore- going species of the eruption, was stronjjly insisted on by Ambrose Pare ; and certainly in the cases pointed out as requiring this practice should never be omitted ; more particularly when accustomed discharges have disappeared, as the ha'morrhoidal flux and the menstruiil evacuation. In this form of the disease, much advantage will sometimes be procured from tlie nitro-liydrociiloric acid foot-bath ; and from a lotion with these acids ap])licd to the affected parts twice or thrice a day (see F. 4, 5.). This practice has received the sanction of JMftJ. Biett, Cazenave, and Sciiedel. 1 he advantages to be derived from the use of these acids as a lotion will be more ceitainly secured by applying a few leeches to the vicinity of the eruption, and after- wards a fomentation, which may be followed either by a spirit and alum or zinc lotion, or by 32 ADHESIONS. the lotion with the bi-borate of soda (F.-334.)' If lhe-!e fail, the nitro-hydrocloric acid lotion may be employed. Stimulating and irritating applica- tions ought to be avoided ;• and whilst the tone of the . Paris, 18-20. —Plumbe,On the Diseases of the Skin, Kvo, 2J ed. Lond. lH'2i) Cazciiave, el Schedcl, Ahregc Pra- tique des Maladies de la IVaii, 8vo, Pans, 1829, p. 208. _ Green, On Diseases of the Skin, Lonri. 8vo. 183.i. p. IGI. ADHESIONS. SvN. Adhesions, Adhtrences, Fr. l^ie AnhVmglichheit, Gcr. Congiunzumi , unioni, aderenzw, Ital. Classif. — MoniiiDSrat'CTunE. — Thehaveu- xics. — Chiefly a result of someone of the In- Jlamnvitont Slates. — ^ee Infi.a.mmation. 1. Adhesions of opposite surfaces of tissues are amongst tiie most common organic lesions presented to our view in post mortem examinations. They may be congenital, arising either from "an original disposition of j)arts, or from intra-uterine disease. As ihey aie commonly brou;^hl before us in prac- tice, they are generally one of the consequences of inflammatory action, affecting the adhering surfaces, or which had afl^ected them previously ; and occur in those parts which are in contact, or so nearly in contact, that the efli'usion of a com- mon product of the inflammatory act becomes the medium of union. 2. It is requisite to all adhesions, that a fluid be thrown out from the inflamed surface, previ- ously to the adhesion being commenced. This fluid varies somewhat in its characters with the state of inflanimatoiy action ; but it soon passes into a much more consistent condition, and thus becomes the medium of adhesion. In some places it is scarcely perceptible between those parts of opposite surfaces which are naturally very nearly or altogether in contact with each other, the ag- glutinating medium being there so remarkably thin ; whilst those parts that are further separated in their natural state, have the interstices filled up by a copious exudation. The fluid exuded in thus variable quantities, has been denominated, in its first stages, or inorganised states, coagulable and coagulated lymph, albuminous exudation, coagulated albumen, &c. When first poured out from the inflamed surface, particularly of serous membranes, it consists of a lymph-like fluid, which soon becomes somewhat opaque, more solid, and assumes the appearance of a softly coagulated albumen, — its chemical pro- ptTties very nearly approaching to those of pure albumen, containing a small proportion of the usual saline ingredients of the blood. 3. 'I'he longer this matter has been eflTused, and the longer adhesions, which it has occa- sioned, have endured, the more firm and more closely resembling cellular or cellulo-fibrous tis- sue do they become. This change in the state of the adhesions, according to their duration, is fully stated in the article on the morbid states of serous membranes. It may, however, b' here premised, that the medium of adhesion, which is first fluid, and afterwaids albuminous and nearly solid, soon becomes partially organised ; blood-vessels shoot into it, and thus opposing surfaces become more or less firmly united, according to the de- gree of motion occurring between them, that may either prevent their firm adhesion, or disturb it after it has been already formed, and to the state of the fluid which becomes the medium of union. In some cases this fluid is secreted so copiously, and is so deficient in the albuminous constituent, the watery part being so predomi- nant, that adhesions are formed only in difi'er- ent, or in numerous and irregular ponts, be- tween which serum in various states is efl^used, separating the oppo-ite and partially united sur- faces, stretchinir the adhesions, breaking down some, and reducing others to cellular bunds run- ning between these surfaces through the efl^used fluid, which is in such cases usually very tur- bid, and abounds in flakes of albuminous matter. This appearance is not unusually observed in cases of adhesion of the pleura, pericardium, and occasionally of the peritoneum. 4. The conrrescible fluid, as will appear in the secjuel, which is formed between the surfaces of divided structures, originates in two distinct modes, gtmerall.y assumes a firmer and more fibrous cha- racter in its advanced stages, and undergoes a more marked diminution of volume than is ob- ADHESIONS served in those adhesions which form on serous surfaces. From this it will be apparent that ad- hesions are formed by the medium, 1st, of a con- crete inorganic albuminous matter ; and 2d, of this matter, at a later period, in a more or less organised state, and presenting various appear- ances, according to the length of their duration, and the nature of the inflammatory disease which produced them. It will be also apparent, from the foregoing, that the adhesion of opposite sur- faces is not in itself a specific disease, but the result of disease, — generally of inflammation in some one of its grades. 5. Adhesions, in respect of their ultimate ten- dencies, are either i-f/wirat/tie or morbid. — M. Cru- VEiT.niER, who has divided them into two classes, according to this view, comprises under the former the adhesions between divided tissues and sur- faces brought about by surgical aid ; to which I may add those that lake place around puru- lent formations, and prevent the extension or effusion of the collected matter into adjoining parts. Whilst the reparative class of adhesions are staled to form generally between divided structures and diseased sui faces, it should be kept in recollection that all the tissues do not admit of adhesion taking place immediately be- tween theirdivided surfaces. Blood-vessels, nerves, muscular fibres, and tendons do not unite, after division. It is the minute vessels of the cellular tissue which surrounds them, and their individual fibres, that chiefly furnish the means of their adhesion. From these vessels, if protected from the atmospheric air, a coagulable lymph is thrown out ; which gradually becomes vasculur, organ- ised, and in a few days cell ulo- fibrous, and as firm as the parts which formed it. This newly produced substance is the medium by which the muscular fibres, or other structures which had been divided, are united ; and this gradually be- comes thinner and less apparent, and admits of the nearer approximation of the separated parts, until they at last seem continuous, although the existence of the medium of union may still be detected. This constitutes primarij adhesion, the union by the "Jirst intention" of surgeons. 6. When the flivision takes place between bones, this exudation forms the callus, into which ossific matter is deposited. Some pathologists believe that the concrescible lymph, thus fur- nished by the capillary vessels of the divided surfaces, particularly those of the cellular tissue, is the matrix, in which the peculiar structure, of which nerves or muscular fibres consist, is after- wards formed or deposited. But, if this were the case, the firm, and even fibrous, matter into which ihe medium of union is ultimately changed, would at last disappear, and these structures be actually continuous. This, however, never unequivocally occurs ; for, although the uniting medium is re- duced to a very thm, and scarcely perceptible, substance, yet it may be made apparent by ma- ceration and careful dissection. 7. When air is admitted between the divided structures, or when primary adhesion fails of taking place, a different process obtains ; minute granula; or carunculae form upon their surfaces, whence proceeds at first a fluid pus, subsequently a more concrescible fluid, which forms a sort of false membrane, and which, when the opposite s\irfaces are ke|)t in a state of near approximation, be- \'0T.. I. : — Reparative. 33- comes the medium of adhesion, unless the state of the system is such as not to admit of the form- ation of this concrescible fluid, and of the other steps of this restorative process. When divided parts come in contact with the air, the adhesion is always formed in this manner, — by the sup- purative process, — whatever may be the nature of the structure which is thus circumstanced ; and the false membrane, which is the medium of union, becomes more thin, firm, and fibrous, and, at the same time, less apparent with the lapse of lime. This may be called consecutive adhesion. When the divided surfaces are protected from the air, and primary adhesion takes place, the process is more rapid ; but its quickness will de- pend upon the quantity of blood effused between the divided surfaces. If this be considerable, one of two things will result,— either the effused blood will be absorbed, and a cyst, or cellulo- fibrous medium of union, be slowly formed, which will be gradually diminished in thickness ; or the coagulum may act as a foreign substance, keep up irritation of the vessels in the divided surfaces, and cause suppuration, and consecutive adhesion with the cicatrix formed by the medium of union. (See art. Abscess.) 8. There is one important point connected with adhesions in their various states and seats,— whether reparative or morbid, whether primarily reparative or consecutively reparative, and whether taking place between cellular, serous, or other structures, — which has not received the at- tention from modern pathologists that its prac- tical importance requires for it, and to which John Hunter first directed notice. I allude to the important truth, that adhesions of either of the above descriptions, but particularly the pri- mary reparative, whether taking place between divided surfaces or around purulent formations, either will not form, or, if in the process of form- ation, will be dissolved, in c.ertain states of the vital energies of the frame, and of the circulating fluid. Great depression of the vital influence will have this efl^ect, whether it be produced by the exhaustion proceeding from profuse discharges, by contagious and other noxious miasms, by the close air of hospitals, and other places loaded with animal effluvia, by the inoculation of cer- tain animal poisons, by the absorption of puriform or sanious secretions, or other morbid matters, into the current of the circulation, by the mercu- rial affection of the frame, or by the j^outy dia- thesis. When the vital energies of the frame are greatly depressed, and the tonic action of the capillaries much relaxed, by causes acting either exirinsically or intrinsically as respects the blood- vessels, the ability of throwing out a concrescible or coagulable lymph from the divided or inHamed vessels is destroyed, and in its place is produced an ichorous serum, or sanious fluid, winch may either pass out, or, if no ready outlet is afforded, will infiltrate itself through the tissues adjoining, or be partially absorbed and vitiate the perhaps already morbid blood. (See art. Blood.) 9. In order to prevent this very dangerous state from supervening in all cases where the repaiative process of adhesion is required, the ut- most attention ought to be devoted to the state of the vital energies, particularly as indicated by the tone and frequency of the pulse, and the states of the digestive organs. When the former becomes D 34 ADHESIONS— Morbid. very quick, and the powers of the latter fail, that much dreaded state of the frame, which is insuf- ficient for the formation of coaguhil)le lymph, may be considered as approaching, if it be not actually present. In all cases where blood-vessels are liable to be inflamed, this state of the consti- tutional powers, owing to the risk of the blood being vitiated, is particularly to be guarded against. Having advanced as much as belongs to my pro- vince lespecting the reparative states of adhesion, I proceed to stale briefly tne doctrine of Murbid adhesions. The particular morbid adhesions are noticed under the articles on the pathology of the parts in which ihey form. 10. Adhesions in some one of the states de- scribed above (§ 1 — 4.) are liable to occur, as a consequence of certain grades of inflammation, in the following situations: — 1st, In the cellular tissue; 2fi, Between serous surfaces; 3d, Be- tween mucous surfaces; 4th, Between synovial surfaces ; 5th, In the internal surfaces of blood- vessels ; ami, 6ih, Between the surfaces of morbid or accidental formations. 11. A. Adhesions of Cellular Tissue. — The fir-t step of the process is the exhalation of a quantity of yellowish serum and of coagulable lymph into the cellules of this tissue, which ulti- mately agglutinates them together, upon the absorption of the former, and the concrescence of the latter. The consequence of this is, that the piorluct of inflummation formed in the centre of the inflamed cellular tissue, consisting chiefly of the more fluid and least concrescible portion of the exhalation, is prevented from permeating the agglutinated cellules, and a barrier is set up against it. If resolution takes place, and the pu- rulent matter is absorbed, the surfaces of the cavity become united, and the medium of union is changed, as in cases of recent wounds, and in the manner described above (§ 5.). If the parts go on to the evacuation of the matter, adhesion is also effected, as in the case of consecutive re- storative adhesion {§ 7.) ; leaving, however, a cicatrix, which is gradually dimitii-hed, formed of the cellulo-fibrous medium of union. In all cases of indammaiion of cellular tissues adhesion of the cellules, from the exudation of a concres- cible lymph, takes place ; and it is thisadheson which forms the fibrous cysts ti abscesses, isohites their contents from the surrounding structures, and in some respects excludes them from the econoToy. Adiiesions of the cellules of this struc- ture also strengthen the cysts of aneurisms, and form sera fibrous cysts around foreign bodies that are accidentally lodged in it. 12. B. Adhesions between serous surfaces are the next most common; being formed through the medium, either of a more or less thick and firm inorganic albumen, in the form of a false membrane, or of this substance advanced to a more or less organised state, and assuming either the appearance of cellular tissue, with a surface partaking of the serous character, or one of the states about to be noticed. 'I"he organised nature (if those adhesions has been denied by some ; but the observations of Sioi.i., Hiinti;ii, JJupuy- TuiN. Baii.i.ik, Meckel, Homk, LoiisriiiN, Ciiu- vhiLiiirn, Gendiun', Baiion, and others, who have traced blood-vessels in them, have put the question at rest. Adhesions occur most frequently bet^veen the pleura;, next in the peritoneum, and next Jo these in the pericardium They are com- paratively rare in the tunica vaginalis ; and in the arachnoid they are still more rare. 13. It is not necessary to the formation of ad- hesions between opposite serous surfaces, that the pre-existing inflammation shall extend continu- ously to both. VVhen the coagulable lymph is thrown out upon one of the two inflamed surlaces, — as, for instance, on the peritoneal surface of the small intestines, — it seems to act as an irritant to the opposite part of the omentum, with which it is brought in contact, inducing inflammation of that part only, and leaving the intervening surface both above and below it unafteeted. The part thus irritated by the contact of the coagu- lable lymph, poured out by the part primarily afl^ected opposite to it, becomes also inflamed, and exudes this concrescible fluid ; and the inflammation thus secondarily induced in a part of the omentum, may advance to the external surface of the omental duplicature, and, by means of the exudation of this product of inflammation in that situation, excite a similar state of action in the directly opposite part of the peritoneum reflected over the abdominal parietes. Thus the inflammation and its consecutive adhesions may proceed, without the disease having affected any of the continuous surfaces intervening between them. A .-imilar circumstance is sometimes ob- served in respect of the convex surface of the liver and peritoneal surface of the diaphragm. Infldmmation, commencing in a part only of the former, will excite it in the part of the latter exactly opposite, and be followed by adhesion ; and the inflammatory action, not infrequently ex- tending upwards through the diaphragm to the dia- phragmatic pleura, will be further followed by the exudation of coaj^ulable lymph on its free surface, which, irritating that portion only of the pulmonic pleura opposite to, or in contact with it, will inflame that part, and form adhesions with it, without afTecting the continuous surface intervening be- tween, and surrounding the adherent parts. The unadhering cavity, however, not infrequently contains a turbid or flaky serum, with patches of false membrane, arising from a less acute state of inflammatory action in those parts of the serous surface immediately adjoining the adhesions. Thus it is not unusual to find, in cases of acute inflam- mation afl^ecting either the peritoneum, pleura, or arachnoid, and limited to a particular part, a similar state of disease, and the same product, formed only, in the parts ojiposite, and most nearly in C(mt!ict ; whilst the continuous surfaces sur- rounding them are either altogether sound, or much less afl'ected ; — most commonly only so far as to give rise to a serous exudation, or slight albuminous coating, in their immediate vicinity. 14. From tliis it will appear, that the near approach, and more especially the immediate contact, of opposite surlaces, and the want of motion between the one surface and the other, will favour the formation of atlhesions : thus they are most fieciuent at the superior parts of the pleura, between the convex suiface of the liver and the dia])hragin, and the serous surfaces of pans included in hernia;. The different species of media, by which adiie-ions of serous surfaces tire affected, are the following, according to M. CiirvMi-nim : — An inorganised false membrnne ; a fihtmentoiis adhesion, and a cellular adhesion. ADHESIONS — Morbid. 35 in neither of which blood-vessels are evident ; a permanent organised mtmhruDe ; and a lubercu- lated membrane. All these originate in a concres- cible lymph, as in adhesions of cellular tissues. (See art. on Serous Membranes.) 15. C. Adhesions between mucous surfaces are not frequent. Bichat denied the possibility of their occurrence, unless destruction of the mucous membrane had taken place. lie wns led to this conclusion more by the functions of this membrane in health and disease, than by observ- ation of facts. There can be no doubt, however, that the opposite surfaces of canals, covered as they are by mucous membranes, occasionally adhere, in consequence of very acute attacks of inflammation ; but this occurs very rarely, owing to the access of atmospheric air, to the pre- sence of gases, to the various matters con^tantly passing tlirough them, and to the nature of the fluid which usually proceeds from inflammation of these surfaces. The mo^t common exception which takes place to the general inference adopted by BiciiAT is met wiih in the vagina. I have observed several ca-es, at the Infirmary for Chil- dren, where adhesions of the oppo-ite surfaces of this canal had taken place in consequence of inflammation, — some of them at so early a stage, that they were removed by merely forci- bly separatini; the adherent surfaces, when the mucous membrane was found perfectly entire, but highly inflamed, and covered by an exuda- tion similar to that which is thrown out upon in- flamed serous membranes. Similar facis are recorded by MM. Dupuytren, Villerme, Bres- CHET, and Chuveilhier. Adhesion also of the OS uteri, as a consequence of inflammation, is sometimes observed. Occlusion of the Fallopian tubes, and even the adhesion of the opposite inter- nal surfaces of the uterus, have been occasionally met with. Waltuer, Uenauldix, and Meckel observed these changes so often in prostitutes, that they attributed ihein to the frecpient irritation of the p;trt3, and imputed the barrenness of these females pait'y to this cause. But, in the cases of occlusion of the Fallopian tubes, more is to be imputed to the accumulation of an inspisiev('nt its hu>'tful accumuhiiion in the circulating fluid. 'J'hus, in persons otherwise ap- parently healthy, the excessive accumulation of fat is often one of the eailiesl and most remark- A FTER-PAINS-r- Symptoms and Diagnosis. 37 of diminution of ihe vital energies of posed that it is first secreted in a solid form, and, able the frame. (See art. Ouesiiy.) 4. C. In many instances, when the powers of the constitution are either greatly reduced or other- wise perverted from the healthy state, the adipose matter is also changed in roloitr, compositwn, and consistence, becomii)g remarkably pale, or dark, reddish, or gelatinous. It may likewise be, par- ticularly in cachectic persons, uncommonly watery, soft, smeary, or jelly-like ; and on the contrary, but more rarely, hard, waxy, or even horny. 5. D. It may be a question whether or not this tissue is liable to inftammatioti. Considering it merely as a modification of the cellular structure, chiefly in as far as it contains the falty substance of the body deposited in its areolse, the containing tissue only must be looked upon as that which is liable to inflammation or any other disease; the fat or contained matter being entirely passive, and modified only by the morbid states of the tis-ue which secretes and contains it. There seems little doubt that the adipose tissue participates in the variou-! states of diflTu^e inflammation ; whether tiial attending upon ceitain forms of erysipelas, or (ol'owing accidents, or the inoculation of morbid matter. When thus inflamed, it rapidly parses into a state of sloughy and fetid suppuration ; large portions of it being not infrequently con verted into an ash-coloured, semifluid pulp, mixed with shreds of cellular tissue and albuminous matter, cr becoming entirely sphacelated. 6. E. Ejff'usion of blood into the adipose tissue occurs under similar circum'^iances to those con- nected with haamorrhage into the cellular sub- stance, but much less frequently. This change has been occasionally noticed by Huxham, Ci.eg- iiOBN, Craigie, and by myself and others, in scorbutus, purpura hsmorihagica, and in the li- quescent or malignant forms of remittent fever in warm or unhealthy climates. 7. F. Of the tuvioins most frequently deve- loped in this tissue, the most remarkable are — a. Adipose sarcoma, which is surrounded by a thin capsule of cellular tissue condensed around it, and consists of an unusual accumulation of latty matter in cells, the component fibies of which are so firm as to give consistence to the tumour: it closely re- sembles a local hypertrophy of the adipose tissue, excepting that it is surrounded by a capsule ; and it may have either a broad or narrow base ; — b. Steatomatous tumours are chielly a peculiar modifi- cation of the fatly secretion, which is accumulated in masses, surrounded by a spheroidal cyst : they are not formed of cells, in which the fatty matter is deposited, but consist of a simple semifluid sub- stance secreted by the inner surface of the cyst * lliey occur more frequently in the cellular, than in ihe adipose tissue; — c. Alheromatous and me- licerous tumours are either modifications of the steatomatous, or proceed from the change induced in small riironic abscesses; but they are most commonly the former when seated in this tissue. 8. G. Metalloid deposition is sometimes found in both the internal and external adipose substance. It may be either disseminated in the form of small inky spots, or accumulated in spheroidal masses; or found in a semifluid state and brownish black colour, surrounded by a cyst formed by the con- densation of the contiguous cellular tissue. As to the state in which this peculiar matter is formed, great diveisity of opinion exists. L.aenxec sup- iike tubercular deposits, afterwards becomes soft. I am, however, inclined to adopt the opposite opinion ; viz. that it is secreted in a fluid or semi- fluid state, and that it afteiwards becomes firm by the absorption of its more fluid parts. The ob- servations of Drs, CuLLEN and Carsweli., and of BI.Chomel, seem to confirm this opinion. BinLioGRAPHY. — Art. Graisse, Corpulence, and ObisH€, in Diet, des Sciences Medicates. — Graefe, in Journ. fur Cliirurp. iind Augenheilk. b. ix. p. iii. p. 367. — Grune, I)e Sank ft MorbosA Pinguedinis in Corpora Secretione, 8vo. I5er. 18'J6. — 0«o, in Selt. Beobacht. b. ii. p. 166.— Ckomcl, Nouv. Journ. de Med. t. iii. p. i\.— Craigie, General and Pathological Anatomy, p. 62. AFTER-PAINS. Syn. Parodynia Secundaria Dolorosa, Good. Classif.— 5. Class, 3. Order (Good). II. Class, III. Order {Author). 1. Uefin. — Pains, more or less severe, either continuing or supercening shortly after the eipul' sion of the placenta in child-birth. 2. I. SYMPTOMS and Diagnosis. —Attacks of pain in the abdomen are usually experienced in the early part of the puerperal stale. They pro- ceed, when very severe, from the contraction of the uterus, irregularly excited by the presence of coagula. They usually soon follow delivery, are least severe alter a first labour, are increased upon the application of the child to the breast, and last for a day or two. They are generally aggravated by flatulence and costiveness. 3. It is extremely requisite for the young prac- titioner to be on his guard respecting the nature and seat of pain after delivery, as the coramence- rr.ent of the most fatal diseases to which the sex are liable may be mistaken, if not carefully ob- served, for after-pains. These latter are the re- sult of the natural contractions of the womb, and of its return to its former state ; and are distin- guished from disease, particularly inflammations of the uterus, ovaria, or pelvic peritoneum, by their remissions, and by the absence of tenderness or tension of the abdomen, especially on pressure. The uterine discharge, also, is not obstructed ; the milk is secreted; there is no shivering nor vomiting ; and the pulse is seldom increased in frequency. 4. When the patient's bowels have been neg- lected previously to confinement, and when much flatulence exists, the after-pains are often com- plicated with colic, or they assume a colicky character. In cases of this kind, the abdomen is often somewhat more tense and distended than usual ; the fits of pain are severe, with complete remissions; the patient complains of flatulence; the bowels are constipated : but the pulse is not much afl^ected ; the skin, particularly of the trunk, is not hot ; the tongue is moist ; and the feet are often cold ; in a few cases there is retch- ing. It is important to attend carefully to the character of pain consequent upon delivery, and to consider it in relation to the attendant symp- toms, particularly the states of the pulse, and of the abdomen. We ought, therefore, to inquire into its exact seat, examine the pained part caie- fully with the hand ; and, having ascertained in what manner it is aft'ected by the examination, we readily arrive at just conclusions as to its nature. When it is felt in the regions of the uterus and ovaria, and accompanied bv crtat fre- D 3 38 AGE — Its Diffeeent Periods. quency of pulse disorder of the lochia! discharge, , by reiroving flatu=, and promoline the restoration tenderness, and fulness of the hypogastric region, ! of the uterus to its natural state! In the more ^c, the existence of the inflammaiory diseases of ' urgent cases, anodjnes may be conioired to the the uterus and of us appendages, are to be in- j foregoing means ; for, when thus associated, they lerrecl. It n be complamed of about the groin, will not act in preventing the contractions of the "^7 .l^e 'he forerunner of phlegmasia dolens ; uterus. (For HvsTEnALoiA, and the various dis- ana It It be telt about the hip, or in the muscles eases of the uterus in the puerperal and unimpie'r. Ol the pelvis, abdomen, nr thidlio 'it rr,Q«T Uo I mt,jrl ctot^o o„„ it \ '^ ° of the pelvis, abdomen, or' thighs, it may be rheumatic, ovi-ing to the application of cold in some form or other. The pains of riieumatism aie readily recognised from their seat, their ach- ing or gnawing character, the manner of their affecting the motions of the part, and the attend- ant symptoms. '1 he diagnosis, however, of these diseases is fully pointed out under their respective head^. 5. II. Treatment. — The exhibition of an ano- dyne, with attention to the state of the bov,eIs subsequently, has generally been considered suf- ficient for the relief of after-pains. In the more severe cases, an anodyne liniment has been re- commended to be applied to the abdomen, in addition to the exhibition of a dose of laudanum internally ; and, in protracted cases. Dr. Burns advises a purgative — certainly the best pait of the Irtatment usually resorted to. I am, how- ever, of opinion, from remarking the results of this practice, that the common or less urgent cases would have been better left to nature; "and that friction of the abdomen merely with any of the liniments in the Appendix ( F. 297, 298.), or friction followed by a purgative, or an enema, is all that is necessary. We ought to recollect that these pains are merely the result of the healthy tonic contractions of the uterus upon the con- gested veins, and the coagula remaining in it, occasioning their expulsion, and the discharge of the blood arcumulated in its sinuses ; and that the more effectually these ends are accomplished, particularly in unhealthy situations, and lying-iti hospitals, the less risk there will be of the occur- rence of dangerous forms of puerperal disease. 6. Whilst, however, anodynes allay the morbid sensibility of the uterus, they tend to diminish its tonic contraction, to induce a congested and re- laxed state of its parieies and mouth, and to favour the admission of air into its cavity. Air when admitted, particularly under certain circum- stances, is productive of the most dangerous re- sults, from Its effects upon that portion of the surface of the womb to which the pla( enta was attached. Impressed with the justness of this view, I have usually recommended frictions with liniments over the region of the uterus, and a purgative, or purgative injection, which will tend essentially to favour the contraction of the uterus, and the expulsion of the cause of irritation. 7. In cases complicated with flatulency and colic ($ 4.), the above means are still more re- quisite; but much will depend ujion the choice of purgatives. Rly own experience, derived en- tirely from consultation, is decidedly in favour of a draught, consisting of half an ounce of the oleum lerebinlhina;, combined with the same quantity of oleum ricini ; or an enema, contain- ing the same medicines. 'J he combination, also, of a purgative with assnf(jetida, or any other antispasmodic, and an injection, consisting of in- fusion of valeiian, or containing assafotida, with a due proportion of any aperient medicine (see F 130. Vib. 138.), will seldom fail of giving rel'cf. nattd slates, see Uterus.) BinLioGRAPHV — Dcnvian, Introduction to the Prac- tice of Midwifery. &c. Lond. 1816, .Sth edit.- Caiclien Iraite complet d'Accouchemens et des Maladies des Ffinmes,&c. t. lii. Paris, 1 82f.. — ^Bwrnx, Prhiciiiles of Midwifery, &c. L-.i.d. I'^24, p. 52G. -Good, Study of Me- dicine, vol. v. — Bj/au, Manual of Midwifery, 3d edit. Lond. 1831. , AGE.— Syn.— vi;fas, Lat. Das Alter, Ger. A<'e Fr. Eta, Ital. " Classif. — Pathology and Therapectic=. 1. In the succinct view I propose to take of the pathological and therapeutical indications which this subject will naturally suggest to the mind of the practical physician, I propose, ^Vsf, to sketch the successive epochs of life, and thus consider the word in its generic acceptation. When I ar- rive at those periods of existence to which the word age is specifically applicable, the changes which take place in the human frame, in respect both of organisation and function, with the ad- vanced progress of years, — with age in its specific acceptation, will be fully stated, as furnishing im- portant data for practical indications in the Treat- ment of diseases of this epoch. 2. I. Of Aoe in its generic Accept.atiov, —or different Epochs iimilaie any other, even of the blandest and most digestible kind, or the milk of other animals, that very few, not more than one in six or seven, ever arrive at the more advanced periods of life who are deprived of the kind of nourishment nature intended for this epoch. At this age the system is extremely susceptible of external impressions acting upon the lungs, sur- face of the body, and digestive organs ; and par- ticularly to tlie iiiduence of cold. Recently re- moved from a constant and unvaried waimth, and having heretofore existed with all the mucous surfaces shut from the action of foreign agents, the young infant imperatively requires to be pre- Infancv. 39 1 served, particularly during the first months of this epoch, from the influence of a low range of tem| erature, and trom its sudden chani;es. The disposition to increased action in all the mucous membranes, and the great susceptibility of the respiratory nerves, require tlie surface of the body, and particularly the organs of res[)iration, to be guarded from atn.ospheiic vicissitudes; the chief source of the diseases which are so pre- valent and fatal at this age. A similar suscepti- bility of the digestive mucous surface also exists, and is but too frequently evinced by the slightest change in the milk of the mother, or addition of articles of food unsuited to the state of the diges- tive organs. Much of the mischief, however, which improper inge>ta are calculated to pioduce, is guarded against by the copious secretion of mucus, with winch the internal surface of the stomach and bowels is covered, particulaily in very early life. 7. The su-ceptibilily of the mucous tissues to stimuli and irritants, and their proneness to in- flammatory action at this age, extend al>o to the cutaneous surface, as shown by the fiequency of acute exanlhematous di^eases, and ot chronic eruptions. The intimate sympathy existing be- tween both these structures is very strikingly evinced, by the frequent association of inflam- matory excitement of the mucous surfaces, par- ticularly of the digestive canal, with a similar afl^ection of the skin. The co-existence and close connection of inflammatory irritation of the di- gesiive mucous surface, and an analogous state of disease of the brain and its membranes, or the supervention of the latter on the former, are also often observed. During the first months of ex- istence, vascular action in the brain is promi- nently developed, and engaged in perfecting the organi>ation of this organ : and partl\ owing to this circumstance, as well as to the quantity of blood sent to it, compared wiih the rest of the body, and to the various causes tending at this age to derange its circulation, is readily kindled into an inflammatory state of its substance or mem- branes, giving rise to active congestions, efl^usions of fluid in the cavities and between the membranes, and to various other organic changes paiticularised in their appropriate articles. 8. b. With the susceptibility to be impressed by the causes of disease, evinced chiefly in the ner- yous centres and mucous surfaces, and p oducing their efl^ects, not only on them but also on the serous cavities, there is intimately connected a marked disposition to be aflPected by medicines, which exert their influence in an especial manner upon the nervous system. Of these the most re- markable are narcotics and irritating stimulants. The susceptibility to the influence of the former, particularly the preparations of opium, and their efl^ects, primarily in increasing vascular actioa in the biain, and secondarily in favouring con- gestion in the same organ, according to the dose, have appeared to me so important, that, duiing an extensive public practice amongst this class of subjects, I have scarcely ever ventured, during this epoch, on the exhibition of these medicines, excepting under peculiar circumstances, which will receive a more particular notice in other places. A similar caution is also necessary in the use of stimulating and irritating substances. 'Ihe aperient medicines which are so often re- D 4 40 AGE — Infancy. quired at this age should be chiefly of a mild and unirritating quality; and, whilst cold and moisture must be avoided, too warm clothing, particu- larly of the head, ought to be equally shunned. Exposure to a mild, healihy air, frequent ablu- tions of the surface with cold water during the latter part of ihis epoch, — comnjencing first with warm water, and passing on to the use of tepid, and afterwards of cold water, as the infant increases in strength, — followed by frictions, and careful attention to the state of its evacu- ations, are means which should not be omitted in the management of this period of life. Although Cold bathing is generally beneficial after the first months of infancy have elapsed, care should be taken not to subject the infant to the influence of col.i beyond a minute or two, or longer than may be requisite to the perfect ablution of the surface ; for, at this epoch especially, the impression of cold continued for any considerable time de- presses the vital energies, and prevents the de- velopement of that state of healthy secretion on the surface, which usually follows the momentary or brief action of cold, particularly wlien followed by dry frictions. 9. B. 'I he second epoch of \\\\s peiiod, extend- ing from the commencement of the first dentition to its completion, embraces also the important period of weaning. The natural changes pro- ceeding in the different structures and functions during [he Jirst epoch also continue through this. As this period advances, the functions of external relation, particularly speech and voluntary loco- motion, commence, the phenoniena of perception are more perfect, and the manifestations of mind begin to appear. The instinctive desires and emo- tions become more and more evident and active, and furnish, with the other functions, important indications of disease, and of the means of re- moving it. 'J'he susceptibility of the nervous system, and of the mucous surfaces, to be im- pressed by the usual exciting causes of disease, — particularly by cold, moisture, atmospherical constitutions, and vicissitudes, contagious or in- fectious miasms, and errors of diet and regimen, — is unimpaired. 10. a. Teething, which terminates the preced- ing epocli, and ushers in this, is commonly con- nected with more or less disorder of the system. In infants of a healthy constitution, and in whom the powers of life are energetic, disorder is scarcely perceptible unless from the operation of very efficient causes ; but in those who are de- bilitated, whose conformation has been originally feeble, or imbued with any hereditary taint or niorhid diathesis, or who have been weakened by unwholesome food and impure air, this process is often attended with great disturbance in the frame, and, owing to the morbid sensif)ility and irritability it excites, fre(|uei)tly kindles up most tlangerous disease. During the process of /««(/(- "'o> particularly at its early stages, the itching and irritation of the gums are a constant source of excitement, or focus, whence irritation extends to the salivaiy apparatus, as proved by the in- creased flow of viscid saliva. 'J'he continued desire evinted by the little patient to allay the itching ot the gums, by pres'sing between them whatever it can lay hold of, and the evident dis- tress expressed by it if this sensation, wnich is known to be more insupportable than pain, can- not be allayed, are indications which ought not to be overlooked. If this distressing sensation be not allayed by judicious means, the nervous sys- tem becomes inordinately excited, febrile com- motion is induced, the functions of digestion are disordered ; and we are, consequently, not infre- (juenily called upon to remove inflammation of the membranes or substance of the brain, various convulsive affections, and inflammatory disorder of the digestive mucous surface, owing to the extension of irritation along the alimentary canal, as well as to the acidities formed in the stomach and bowels, from the imperfect digestion of the food. During dentition also, a marked disposition seems to exist in the pancreas to become excited, owing to its close sympathy with the salivary ap- paiatus; and I am persuaded that several states of diarrhoea observed at this epoch originate in, or a'e perpetuated by, an increased secretion of pancreatic fluid. 11. Owing, moreover, to the excitement and irritation existing in the gums, aftections of the respirytory and digestive mucous surfaces are more frequently associated with one another, and with increased vascular action in the nervous centres and their envelopes. It would seem that the irritation existing in the mouth disposes, from its influence on the nervous system, the mucous membranes not only to be invaded by the exciting causes of disease, but also to undergo the morbid action throughout. How frequently has the ex- pei ienced practitioner observed inflammatory irri- tation of the dige>tive and of the respiratory mucous surfaces associated in the same case ; and how oft^n has he had cause to suspect the rapid supervention of irritation of the membranes of the brain, or of the brain itself, either with or without effusion, upon inflamniation of the di- gestive mucous surface ! 12. b. Weaning. — During this epoch wean- ing must take place. This should not be earlier than the eighth or ninth month, or later than the fifteenth ; and the infant ought to have, at least, four teeth quite through the gums before it be commenced. The milk of the mother is the in- fant's only food during the greati r part of the preceding epoch, or, at least, until the fourth or fifth month, unless the mother and child be in a weakly slate. From this age upwards it requires food in addition to the nourishment afforded by the mother; but this must be given at first in small quantities, and not oftener than twice daily. As this peiiod of weaning ajiproaches, food in larger proportion, and increased frequency, ii necessary; and as soon as it shall have got teeth to masticate animal food, this may be given it in small quantity, and at first only twice in the week. Animal diet is seldom refjuiied before the completion of the first year, or previous to wean- ing ; afterwards it may be given in gradually increased fietjuency, as the termination of the epoch approaches. 13. VVhil-t the infant is liable to most of the maladies which affect it during the first months, it is now also ex[)Osed to the invasion of many more ; owing to the excitement occasioned by teething, the state of the milk, particularly during the last months of lactation, and the errors in respect of both the (juaiitity and quality of the food. At the same time, however, its vital ener- gies are more developed, and its functions moie AG E — BoviiooD. 41 perfect ; and thus increased resistance is opposed to the extension of disease, and to its disorganis- ing effects. All infectious and exanthematous disorders are very prevalent at this age ; and, in addition to the maladies of the mucous surfaces already alluded to, the lymphatic glands, particu- larly those of the abdomen and thorax, are fre- quently the seat of disease ; and worms often begin to form, particularly after the period of lactation. At this age, also, owing to the changes in the infant's food, as well as to the irritation occasioned by dentition, the disorders which ori- ginate in depraved or imperfect digestion and assimilation are especially prevalent, particularly aphthae, rickets, tubercules, marasmus, and tabes mesenterica, remittent fever, scrofula, and nu- merous cutaneous eruption-^. 14. c. The therapeutical indications at this epoch chiefly relate to the care which is recjuired to preserve the head cool, and ward off the vascu- lar excitement to which it is liable. Anodynes are less injurious at this period than in that preceding it, and are often required, particularly in soothing the irritability of the nervous system arising either from difficult dentition, from the exhaustion occasioned by previous treatment, or by disea>e, and particularly in the advanced stages of whoop- ing-cough and cioup. The state of the gums requires particular attention ; and where there is evidence of itching, this sensation requires to be allayed, first, in the way that nature points out, by pressing hard and smooth substances be- tween ilie gums, as a coral, ivory ring, and what is be^t, a gold ring, when this may be directed. If the least appearance of local affection, as tumefaction, redness, &c., or even merely con- stitutional disturbance, manifest themselves, the gums should be freely and deeply scarified. Ape- rients of a mild and cooling nature, are often required during this epoch ; and in it, as well as in the preceding, blisters, even for a few hours only, particularly when the respiratory mucous surface is obstructed and its functions interrupted, or when the energies are exhausted and the vital resistance consequently reduced, must be employed with extreme caution, and give place to the use of those liniments which 1 shiill have occasion to re- commend as substitutes for them under such cir- cumstances. 15. ii. Period, or that of Childhood (Pite' ritia), extends from about the second to the seventh or eightli year, when the second dentiiion is completed. During this period the develope- ment of the different textures and organs pro- ceeds rapidly, and their functions are more and more perfect. The mental manifestations, par- ticularly those which are intellectual, are de- veloped, and the various moral emotions gain strength. The distinctions which exist between sexes throughout the whole physical and mental constitution at more advanced ages have not yet appeared. All the soft solids of the body evince increasing firmness, vital cohesion, and elasticity, and are protected by a firm covering of adipose matter below the integuments, and in the interstices between the muscles. are generally acute; and, unless proceeding from sources of infection, usually the result of local inflammatory action, which evinces a marked di^- position to terminate in the formative process, or effusion of coagulable lymph, particularly when the serous surfaces are implicated. The suscep- tibility to infectious diseases, particularly thosions, moral and physical ; and inflammatory action has a marked di'^po^ition to give rise to new formations, unless when ajipearing in the advanced stages, or as a sequela, of eruptive or infectious fevers, when it generally occasions serous or seroalbuminous effusions. 19. b. These diseases of this pei^d generally requiie antiphlogistic remedies and evacuations, especially purgatives, either alone or in suitable combination, unless proceeding from depressing causes, particularly those of a specific kind ; and even there the necessity of resorting to alvine evacuations, by means of laxatives, or purgatives combined with tonics, is imperative. The vital resistance is usually well marked, excepting in those who have been deprived of wholesome nourishment and pure air, or whose constitutions are radically in fault ; and in these, whilst tonics and other means of restoration are rees, the ben< fit ob- tained from change of locality is most remaik- able. 21. iv. PiciiioD, or ADOi,K«ti;N'CF,, commences with the first appearance of puberty, and extends to the twentieth year of females, and the twenty- fourth of males. Puberty appears at various ages, according to the climate, the circumstances connected with education, and the constitution of the individual. The usual period in this country, is from the twelfth to the fourteenth year for females ; and from the fourteenth to the sixteenth for males. In the northern parts of the island, it is often a year or two later in both sexes. It is often observed earlier in boarding- schools, both in respect of males and females. In the latter (in London or its vicinity), I have not infrequently met with instances of menstru- ation at ten and eleven years; especially in san- guine and plethoric constitutions; and where the apartments, particularly those for sleeping, have been crowded and close. 22. a. This is one of the most important epochs of human existence : for during it the natural developement of the sexual organs imparts a healthy and tonic excitement throughout the economy ; bringing to their state of full perfection all the organs of the body and all the mani- festations of mind, excepting those that are de- rived from expeiience. The organs of respiration and voice have acquired their full growth and tone, the muscles their due proportion, and the cerebio-spinal nervous sys-tem its beautiful or- ganisation ; placing man, by the exercise of its admirable function*, at the head of all animated creation, — the dread of all other animals, the wonder of himself. It is chiefly during this period of life that the mind becomes stored with ideas, derived both from the learning of the ancients, the science of the moderns, and the arts and accomplishments of highly civilised life; and is more particulaily and more ardently engaged in decomp.ising the information thus acquired, and recombining it in new and useful and at- tractive forms. 23. As the functions and destinies of this period are important, so they require the supervision of the experienced and the good. For, with this developement and activity of both the physical and mental powers, the instinctive feelings and emotions of our nature have also reached the utmost limits of their activiiy; and many of them, particularly those which are related to the perfect condition of the reproductive organs, ac- quire an ascendancy, that both the dictates of reason and moral restraint are required to con- trol. Menre the propriety, both at this and the preceiy, neuralgia, chorea, melancholia, mania, idiotcy, 6cc. ; the dangerous or fatal visit- ation of fevers, diseases of the heart, disorders of the digestive organs, preniature baldness and old age, the formation of tubercles, and the pro- duction of pulmonary consumption; and, lastly, the transmissinn of weak and decre])it bodies and minds to the offspring, of scrofula, rickets, verm- inous complaints, marasmus, hydrocephalus, con- vulsions, tubercles, chorea, &c. : the curse is visited on the children to the third and fourth generation, until the perpetuated punishment ex- tinguishes the very name of the aggres-or. 25. b. The pnthotngical conditions of this age are especially characterised by exalted action. At the approach and commencement of puberty, the -glandular system is extremely prone to conge>tive inflammations, particularly the lymphatic glands of the neck and arm-pits. Tubercles are rapidly developed in the lungs; and these organs are m.uch disposed to acute and chronic inflammations of both their substance and mucous surfaces. Pulmonary liaamorrhages usurp the place of the epistaxis of earlier epochs ; and, in females, dysmenorrhoea, protracted or retained menstruation, chlorosis, hysteria, and occasion- ally menorrliugia or leucorrhoea, occur. The sanguineous diathesis and plethoric habit, in those of a sound constitution, and the sanguine, irri- table, and nervous temperaments, or the one associated with the other, most commonly prevail at this period of life. 26. The progress of disease is generally rapid, and its character acute. Inflammations are more prone to give rise to the formative processes ; and febrile aft'ections, when they terminate by crises, evince a preference to hsEmorrhages and sweats. Idiopathic fevers, inflammations of the respira- tory organs and of the brain or its membranes, are the most common diseases of this age. 27. c The therapeutical indications require but little remark ; for the system has now nearly, or altogether, reached its full growth; and the general inferences which guide the practitioner in the employment of remedial means have now reference, especially, to states of habit, consti- tutional powers, temperament, and diathesis, ■— physical manifestations, which are now, in a great measure, developed, but which acquire their most predominant characters in adult age. As the maladies of this peiiod are frequently inflammatory, and evince a strong tendency to the formative process, and as the powers of life ai-e now most energetic, vascular depletions, with the antiphlogistic regimen, are often re(|uired, and are well borne ; excepting in those whose constitutions have been originally in fault, or who have greatly injured it by the injurious practice of masturbation, from which so many suffer, both at this and subsequent epochs of life. 28. V. PF.niOD. — Adui-t Age may be divided into the epochs, Isi, of early adult age ; and, 2d, of mature age, or cinijiimed virilily. Of each of these 1 shall take a brief notice. A. Early adult age may be dated from twenty to thiity in the female, and from twenty-four to thirty-five in the male. During this epoch, if the constitutional powers have not been injured previously, the whole frame and its individual organs continue to acquire strength ; and, al- though the body has ceased to grow in height, it increases in bulk, particularly the muscles of voluntary motion, and tlie parities of the large cavities. It is also more capable of enduring continued exertion and privations; its vital en- durance and resistance being greater than duiing the period of adolescence. The fealuies and ex- pression of the face ; the chai'acter, disposition, temperament, and dialliesis, are more unfolded, and towards the termination of this period fully di>play their manifestations. 29. B. Mature age, or confirmed virility, may be considered as being from thirty to foily, or forty-five, in the female, and from thirty-four to forty eight in the male. During this time of life, the features of the countenance fully assume those modifications of chaiacter arising from the influence of the passions and emotions of the mind ; and the appetites, habits, and occupa- tions of life imprint upon the frame generally certain appeal ances, arising from their continued influence on the constitution. The mu-cular organs, particularly the muscles of the extremities, are proniinently marked ; the chest fully de- veloped ; the body spaie and active ; liie adijjose structure extremely scanty, and the abdomen sm;ill, in those habitually devoted to laborious employments, not of a sedentary nature, and to active exercise, either on foot or horseback. The sedentary, those addicted to the indulgence of the appetites, and particularly those given to the gratifications of the table, have laige abdo- mens, small extremities, and large depositions of adipose matter beneath the inl( giiments, between the muscles, in the omentum, and suirounding the viscera, with a weak and defective developement of the muscular parts. The studious present the chief marks of tiieir occupations on the fea- tures of the countenance and character of the head ; the appearance of the rest of the frame varying with the habits and indulgei ces with which study or the prosecution of science may be conjoined. At tliis period of life also the feelings, the anxieties, the disappointments, the losses, and the vaiious moral emotions of life, begin to manifest those eflfpcts upon the frame, which become still more fully expressed during the following epoch. 30. This and the preceding period of adult age are, upon the whole, the most extmpt of ail others from disease ; but about the age of forty, and still more so as the age of fifty is approached, the sangumeous circulation becomes more and more languid, particularly in the veins ; hence the frequency of venous coni;estions and visceral obstructions, with the various diseases depend i >j thereupon, particularly hemorrhoids ; bilious de- rangements ; bilious and gastric fevers ; inflam- mations ; aflections of the heart ; apopfexy and paralysis ; derangements of the stomach and liver ; haematemesis ; affections of the joints, as gout ami 44 AGE — In its spechic Acciptation. ilieumatism ; diseases of the urinary organs ; hys- teria and uterine disorders ; hypochondriasis, and afftciions of the mind. At this period, therapeu- tical means require to be striclly regulated ac- cording lo the sex, constitution, temperament, habits, and occupations of the affected. 31. II. Age, in its spfcific acceptation, may be divided into two peuiods, and these into Jour epochs: viz. 1st, Declitihig nge ; 2d,Adva7iced age ; 3d, Old age; 4th, Decrepitude, or second infancy. Before I proceed to consider these in- dividually, 1 will take a view of the changes which supervene with age in the structuies and functions of the body. Age, ill the specific acceptation of the word, may be considered as commencing when the vital energies of the different organs begin to de- cline, — when the maturity of life glides into decay. The period at which this change su- pervenes varies very much in different persons, according to their constitutions, employments, and habits during the earlier epochs of existence. In many it is so gradual as to be imperceptible ; in others it is more obvious ; and in some it is induced rapidly and remarkably, by mental an- xieties and bodily disease. The usual period of its advent, in both sexes, and the different epochs into which age may be divided, will be stated in the se(|uel. 32. As age steals on, all the functions are per- formed more languidly than in earlier life. The energies of the ganglial system decline, as evinced by the digestive, circulating, and secret- ing functions, which it actuates. The sensibility of the cerebro-spinal system, and of its dependent organs; the acuteness of our intellectual powers, our moral emotions and affections, and the ac- tivity and strength of the locomotive organs, — all experience diminution, great in proportion to the advances of age. In noticing the pathological and therapeutical relations of age, those changes of structure and of function which supervene with it will Jint re- ceive attention ; neit, the different terms into which it may be diviiied, with those modifications which diseased actions generally assume in each term respectively, and those indications which should guide our practice in the diseases to which each is most obnoxious, will be briefly considered. 33. A. The wodijicatums of structure produced by age are occasionally sligiit ; but most com- nionly they are very remarkable, particularly in certain organs. In some parts they are scarcely perceptible, in others more obvious, consisting chiefly of increase of density ; and in many they amount to actual change of texture. 'I'he iiitegumenls, particularly those of the face, and the hair, are amongst the earliest parts to exhibit the advance of age ; and they most ob- viously indicate the different stages of its pro- gress. Tl'.e integuments of the face seem more developed than in early or mature age. They are denser and thicker, especially the cutis vera and rete mucosuni ; which Kitter assumes also a somewhat daiker tint. The skin appears more loosely attached to the parts underneath it, chiefly owing to the diminution of the subjacent fat, and shrinking of the other soft solids Hence it ap- pears, particularly in the face, neck, and hands, fidcoid and wrinkled 34. The tuiirs of the head are perhaps the first to evince the commencement of age ; and they present the most common indications of the pro- gress of decay, either by a more or less complete change of colour, or a partial and general loss of them. The change of colour at first consists of a few while or grey hairs, scattered amongst those of a natural hue ; but these gradually be- come more numerous, particularly on the tem- ples, until the whole hair is altogether grey, and ultimately white and transparent. As this change proceeds, the hair also falls out, especially on the crown and forehead. There are, however, many circumstances which accelerate these phenomena, independently of age. Thus fevers, severe courses of mercury, masturbation, &c., will occasion the loss of the hair. But when it falls out from disease, the bulbous roots not being obliterated, its reproduction generally follows ; whereas, when it is lost from old age or from masturbation, it is never reproduced. There are also various causes which occasion a cliaoffe of its colour, particularly the depressing passions, intense ap- plication to study, anxieties of mind, venereal indulgences, &c., and which at the same time accelerate the loss of it. The change of colour, and subsequent loss of hair, seem to arise from deficient nutrition, and consequent atrophy, or destruction ol the bulb, together with some change in the skin itself. In some cases it seems to arise from chronic disease of the rete mucosum and cuticle, as stated in the pathology of certain cuta- neous affections. 35. The adipose and cellular tissues experience considerable change. The fatty deposit dimi- nishes with the progress of age, and it sometimes becoiiies more fluid and watery, as well as of a deeper tint. The cellular tissue is somewhat denser, more fragile, and less elastic than in early life. In some situations it assumes a fibrous character, particularly that portion of it which invests the muscular fibres. The serous mem- branes are also more dense, more subject to ossific deposits, and their fiee surface drier than in early life. The 7nucous surfaces exhibit but little change, excepting as respects their greater pale- ness, and tendency to certain states of disease. I'he fbrous siruccures become more rigid, and in various parts the seat of ossific deposits. They also assume a deeper colour, and firmer and tougher consistence, whilst their physical cohe- sion is much increased as age advances. 3G. The muscles of voluntary motion expe- rience a very marked change, particularly at the advanced epochs of age. They are much dimi- nished in bulk. Their fibres are more rigid, less readily influenced by stimuli, and less contractile than in eaily life. They are also less under the control of volition, much less energetic in their actions, more flaccid, and endowed with less vital tenacity. Their structure is also somewhat mo- dified. They aie paler, sometimes of a light yellow colour, and their fibres less distinct than in youth. 'J"he tendons and aponeurotic expan- sions of muscles, as well as the cellular tissue intervening, are often partially ossified. I'orlions of muscles, near their tendons, are sometimes converted into a tendinous structure ; and the si cretions poured into the sheaths of the tendons are rcmaikably diminished. From all these ciianges result the vacillating, embairassed, and weak movements of the aged. AGE — In its specific Acceptation. 37. The bones acquire a dense structure, and even a somewhat increased size, particularly the bones of the head, the sutures of which become firmly united, first in the internal, and afterwards in the external surface. Tlie cartilages are ossi- fied, particularly (hose of the rib^. i he interver- tebral cartdages become hard, inelastic, and siirunk ; hence the impaired flexibility of the spinal column, the bending forwards of tlie trunk, and diminished stature of aged persons. 38. The blood-vessels undergo very rematkable changes. The arteries are gradually diminished, in proportion to the bulk of the body, as age proceeds ; and the predominance of the venous over the arterial system is more and more appa- rent. Whilst the arteiial vessels become, on the one hand, more dense and rigid in their coals, their calibre diminished, their smaller ramifica- tions altogether obliterated, and their vusa vasdrion indistinct, the veins seem, on the other hand, somewhat thinner in their coats, more dilatable, and their calibre increased ; they are also more tortuous, and hence their capacity is augmented : so that, although the quantity of hlood contained in the body is diminished, particularly at the most advanced stages of life, about two thirds of it aie contained in the veins. 15esides those changes of capacity", the coats of the vessels present changes of structure. The arteries are liable to ossific and other deposits, rupture of their coats, &c. ; the veins to varix, inflammation, &c. 39. The brain and nerves are also somewhat modified by age. The inembranes of the former are generally slightly thickened and^opaque. The bulk of the brain is diininished, and its substance firmer and tougher than natural, and less readily acted upon by chemical re-agents. The nerves i-eem to possess a diminished quantity of medul- lary substance, and their blood-vessels are indis- tinct. The ganglia become firmer, of a deeper colour, and smaller than in early life. 40. The organs of sense undergo important al- terations. The eyes are changed chiefly by the diminished secretion of aqueous fluid into the anterior chamber, occasioning less prominence of the cornea, and a change of its refi active power. The crystalline lens acquires a yellowish tint, and is less transparent. The nerves of the eye, p;irlicularly the optic nerves and ophthalmic branch of the fifth pair, and the iris, are less sen- sible than before ; and hence the dilatation of the pupil, the distant sight, and the confused appear- ance of near objects to aged persons. The ear experiences a change similar to that which takes place in the eye. 'i"he fluid occupying its inter- nal cavities is diminished or altogether absorbed ; and the auditory nerve rendered insensible to im- pressions, from this and other changes in the con- ditions necessary to its functions. The other organs of sense, particularly taste and smell, have also their sensibility similarly blunted. 41. But changes are not limited to the more elementary structures of the body ; and organs of sense, the viscera of digesiion, secretion, assimila- tion, sangiiifaction, and generation undergo analo- gous alteratiims. The teeth loosen or decay ; the gums are partially absorbed ; and the jaws de- prived of teeth and of their alveolae, approximate more closely. Hence the projection of the chin, its approach to the nose, and diminished capacity of the mouth. To these causes are partly to be 45 imputed the change which takes place in the speec h of the aged. 1 he stomachand bowels are gimerally flaccid, owing to deficient contractility of theiV muscular coats ; but the liver, pancreas, and spleen present but little change, excepting they are, or liave been the seat of disease, unless slight atrophy, or enlargement and increased density. The uri- nary organs are more frequently altered ; calculi are not infrequently met with in the tubuli urini- feri and pelvis of the kidneys; and the uiinary bladder is generally thicker and firmer in its coat's than in early life ; the prostate gland is commonly somevvhat enlarged. 42. The lujigs are not necessarily changed by age, further than that they become less elastic, their air-cells enlarged, some of the bronchial ramifications more dilated, and portions of them emphysematous. They frequently, however, pre- sent the remains of antecedent disease. The heart partakes, although in a less remark;ible manner, ot the changes experienced by muscular parts. The tone and energy of its fibres are lowered ; its structuie is softer, more flaccid, and occasionally also paler. It is sometimes diminished in size ; or some of its cavities are dilated, and their parieies thinned ; and cartilaginous or ossific formations, or both, occur in parts of its internal surface, par- ticularly in the valves. 43. Ihe organs of generation experience a marked alteration. The ovariu shrink, become dense, and their vesicular structure changed. 'J'he uterus is diminished in bulk, unless it is the seat of organic disease, to which it is very liable, particularly at its mouth and neck. The mamnut also waste, are soft, pendulous, and lastly are entirely absorbed. The areolae become dark, and the nipples shrink. At the commence- ment of age they are subject to congestions, indurations, and scirrhous disease. The testes shrink, or become soft and small, or even nearly disappear. The penis is shrunk, seldom expe- riences the vital tuigescence', and lastly not at all ; the faculty of generation having previously disappeared. 44. In this rapid sketch of the chief changes which the structures and organs of the body un- dergo from age, there are several phenomena which must strike the reader. 'J'he chief of these are, the gradually increased density of thediflerenc textures, and the consequent diminution of their watery or fluid constituents, as well as of the hlood Itself. In childhood and early life the tex- tures are succulent, and the circulating fluid abundant. But as age advances, they acquire an increase of their physical cohesion, whilst their vital attraction is diminished. 'J'his increase of density and diminution of the fluid elements of the structures, with the progress of age, are con- stantly observed in the vegetable kingdom of nature ; and, as we advance upwards, through the various grades and clajses of animals, we find this principle strictly adhered to. In addition to this, another phenomenon is remarkable ; namely, the redundance of osseous matter, as evinced not only by the increased quantity of earthy matter in the bones and cartilages, but also by tlie depo- sition of this substance in the coats of the arteries and in other textures. Somewhat analogous to these formations, and sometimes even vicarious of them, is the abundance of sabulous deposits from the urine, frequently observed to occur either 46 AGE — In its specific Acceptation. during tlie secretion and retention of this Haul, or alter its rliscliarge. 45. Not only are tiie meelianical conditions of the diffL-rent parts of the body modified by age, as now stated, but tlieir chemical properties are also similarly affected. The gelatin disappears, or becomes changed to albumen ; the fibiin is in- creased, and assumes a deeper hue, and is less easjily affected by maceration or exjiosure to the air. The phosphate of lime is augmented, and often accumulates to a veiy hurtful extent, toge- ther with the other earthy salts and urea. 46. B. Of the conditions of function charac- terising the advance if age. — a. Although the changes, which have been now described as supervening in the different structures with a^je, may hive originated in those imperceptible and s-low modifications which the various organic functions experience from peculiarities of consti- tution, of food and employment, or from acquired habits and indulgences; yet there can be no doubt that, when once induced, they modify still further these functions, and thus draw on other lesions, and ultimately still greater alter- ations of both function and structure, or even speedily fatal disease. But we are not altogether justified in considering these contingencies as the primary causes of the changes now described. We are rather to view them as more or less re- mote effects of the failure of the vital endowment of the frame, manifesting i'self first in a less per- fect performance of the different functions, and subsequently in modifications of structure, and ultimately in very obvious lesions of both function and structure. 47. b. It was supposed by Brown and others, that the embryoat itseailiest formation is endowed with a certain -uni or allotment of vitality, which, in the earlier epochs of life, is engaged in the formation of, and in bringing to perlection, the different structures and organs of the frame ; that it is gradually exhausting itself ever after, until it at last expires ; and tlint the greater the excite- ment of its different inanifestntions and functions during the subst-quent stages of existence, the more rapidly will its termination be reached ; that the oil with which the lamp of human, and indeed all animal, existence burns, is filled at its com- mencement, and is never afterwards supplied ; and that the more brilliant the flame, the shorter will be its duration. This captivating hypothesis, however, appears, on an intimate view, irrecon- cilable with many of the phe.iomena of health and disease. It cannot readily be conceded that the allotment of viialiiy bestowed upon the germ or germs Clin exceeil that posse-sed by the parents, — for the hypothesis is, tliat the sum of vitality is greater the younger the animal ; and that it dimi- ni-hes with the advance of ihiys and years, from the period of its endowing the embryo. But it is obvious, that the greater vital endowment cannot issue from the smaller; that the parents cannot jiossibly impart to the embryo more than they pO'^sess, they still retaining a portion afterwards: more particularly when we consider that the greater endowment is imparted not to one embryo only, but to several, as is the case in the lower animals, and olien in the human species al«o. 48. 1 he [jlienoinena, moreover, of disease fur- nish us with proofs that this sum of vital endow- ment is neither thus early and at once be-towed, nor thus uniformly diminished, according to the waste it experiences, without occasional reinforce- me:it. We frequently perceive all the manifesta- tions of life reduced, at different epochs of exist- ence, nearly to total extinction, particularly in several kinds of fever, when having received the requisite aid from external stimuli, they have been gradually restored to their former activity. In- deed, the various circum-.tances in which the body is placed, and the different states it presents at different periods of life, and from numerous causes which affect it, seem rather to favour the idea that the su 11 of vitaliiy, and its manifestations in the different organs, fluctuate more or less during the allotted period of existence ; that a certain eman- ation of vitality proceeds from the parents, great in proportion to their constituiional powers ; but that this endowment is con-tantly experiencing an accession, first from the mother, and subsequently from the common sources of air and aliment ; th it this reinforcement is thus constantly supply- ing the waste arising from the exercise of the various functions, and adding to the bulk of the structures, until manhood is reached ; and that at this period the sum of vitality has reached its greatest amount, from which it gradually declines, owing rather to the waste, particularly that occa- sioned by the exercise of the generative functions, exceeding the supply, than from the continued expenditure of what is at first bestowed and never afterwards reinforced. 49. Having been induced by the foregoing, and other considerations, to relinquish the former for the latter hypothesis, I infer that the gradual di- minution of the vital energies that accompanies the progress of age is more or less manifested throughout all the frame ; that the functions first evince this decline, and that the organs them- selves are at last modified in organisation, from the slightest and almost inappreciable shades to the most marked alterations. The changes of structure, once induced, tend most es^en'ially to heighten and to perpetuate the previously slight disorders of function, until both the one and the other undergo, by reciprocity of influence, most important alterations, terminating at last in death, and the dissolution of the frame. — I now pro- ceed briefly to notice those changes of function which, frequently related to the alterations of structure described above, mark the existence of Age. 50. c. 1 have, in another place, stated that, of all the different tissues of the frame, the ganglial system is tiie most intimately related, in every way, to the vital influence which endows the body. And it is precisely those organs which are most immediately connected with this system that fiist furnish proofs of incipient decline in the languor or imperfei'tion of their functions. Amongst those functions are compiised those of digestion, secretion, circulation assimilation, the preservation of the animal temperature, and generation. 'J'lie functions of animal relation are not so soon af- fected ; and at first the change in them is rather secondary, and owing to tlie pre-existing change of the functions of organic life, — of those func- tions which are excited or actuated through the medium of the ganglial system. !')\ . As very intimately dependent upon the state of the ganglial system, the secretions manifest, with the advance of age, the most remaikable AGE — In its specific Acceptation. 47 lesion. These are generally modified in quinHiti/, in Jliddilij, and in quality. 1st, The quantity of tile secretions, b )tli lecremenliiial and excreinen- titial, is sensibly lessened. The salivary, ga-tric, biliary, cutaneous, and spermatic secretions evince this change. 2d, Their fluidity is diminished, as shown by the salivary, the lachrymal, cutaneous, and watery exhalations and secretions. And, 3d, their properties are modified, as proved by their marked tendency to assume, immediately as they are secreted, irritating and acrimonious quaiilies, as shown by their effects upon the tissues with which they remain for any time in contact, and to pa~s ra- pidly into decomposition. The urine, and occasion ally the lachrymal, the mucous, the biliary, cuta- neous, and sebaceous secretions evince this change. It very generally happens that the secreted fluids experience more than one of the above alterations ; they being diminished both in quantity and in fluidity, and at the same time deteriorated in quality. This is remarkably the ca-e in respect of the cutaneous, mucous, and urinary secretions; the chief exception being furnished by the mu- cous fluid, which is sometimes increased, although it is of diminished fluidity and altered quality : but this is rather an effect of disease, than merely of advanced age. 52. Next to the function of secretion, and owing to the same cause, — the diminution of vital influence, — that of circulation is most sensibly affected. The action of the heart is slower than in early life, much less energetic, and occasionally irregular. The capillary circulation is more lan- guid, and a much smaller quantity of blood pene- trates the extreme ramifications and nutritious vessels, in consequence, most probably, of the diminished calibre of those vessels, and the in- from the inordinate accumulation of the secretions poured into tht-m, and changes of the properties of these secretions during their retention, either occasioning their expulsion, or producing actual disease. 54. As closely related, also, to the lowered energy of the nerves of organic life, and conse- quent languor of the ciiculation, tlie generation of animal heat in the aged is evidently diminished, although the causes which usually moderate it in the young, — nainely,abundynt exhalation and eva- poration trom the surfaces of the lungs and skin, — exist in a much less degree in the former. The functions of generation, are, however, those most remarkably affected. In the fema'e the faculty of concept, on is altogether abolished, and import- ant changes occur in the state of her appropriate organs; yet the sexual desire still lingers for a while: and in the male, although the ability of procreation may remain, under favourable cir- cumstances, for some lime, it is at last entirely abolished. 55. Thus we perceive, that as the different vis- cera of organic life increase in density, and expe- rience a diminution of vital expansibility and con- tractility, so their functions become more languid or imperfect, untd some of them cease to be per- formed, and others are remarkably altered. Eut the change is not limited to lhi~ class of structures. Those organs which are devoted to the extension ct our intercourse with surrounding nature, and are subservient to the manifestations of mind, as well as those manifestations themselves, in both their intellectual and moral relations, undergo, although at a more advanced period, in respect of some of them, very marked modifications. 56. The changes that take place in the mus- creased density of the tissues in which they ter- [ cular and their associated structures evidently minate. The venous circulation is more congested, and more prone to experience the consequences of engorgements, particularly varicose dihitatii-ns, giving rise to effusions of blood and other serious diseases. The blood itself is not only diminished in quantity, but is also of a darker colour, and is probably also slightly changed in quality, parti- cularly in respect of certain of its saline consti- tuents. The absorbent system is less frequently disturbed in its functions by age than almost any other part of the frame, although it occasionally evinces diminished power, but chiefly in connection would render them incap.ible of performing those actions, to which volition may impel them, with energy, rapidity, and steadi-iess, even althoutrli the nervous system of voluntary motion were altogether unaffected. But this system, owing probably to those slight, and nearly unappre- ciable, alterations noticed above (§ 36 ), pos- sesses much less energy and susceptibility of action than in the prime of life, and therefore actuates the muscles in a less vigorous manner. 57. The same condition of the brain and cere- bro spinal nerves, which contributes to render the with disease. To the predominance of the ab- actions of volition less piecise and energetic, seems sorbent function over that of arterial circulation has been partly ascribed, and with apparent jus aKo to be connected with the less vigorous exer- ci-e of the intellectual powers, and the imperfect tice, the wasting and condensation of the stiuc- I conditions of the functions of sense. These func- tures characterising the most advanced epochs of | tions generally indicate incipient decay before the life. I powers of mind are affected ; and some of them are nearly abolished, particularly hearincr and seeing, before the latter evince any marked change. But more commonly the decay of the senses is soon followed, occasionnily as a neces- sary result, by a slight fuihire of some of the mental faculties. The memory, and the power of a-sociation as intimately related to memory, are the first to evince this declen-ion, generally by a want of recollection of the names of persons, sub- sequently of the names of things and of recent events, or recently detailed information ; the jiiilgment continuing eidier aliogeiher or but slightly impaired. With this declining state of the faculties, the emotions of the n.ind are often re- ; raaikaljly blunted ; the desires and affections are 53 As intimately connected with the weakened energy ot the ganglionic and vascular systems, the functions of digestion and assimilation are languidly performed. The gastric, pancreatic, and biliary juices are less abundantly secreted in the aged than in those of early or mature years; and the tonic contractility of the coats of the sto- mach and bowels is diminished. Hence result various dyspeptic ailments, flatulence, and a slug- gish state of the bowels. The receptacles which nature has provided lor the temporary retenti n of the secretions and excretions, particularly the biliary and urinary bladders, react imperfectly on their contents, owing to the lowered power of the nerves which actuate them : hence arise distention 48 AGE^Oi.D Age. impairetl, excepting in as far as respect early- formed associations and affections, which are often recalled with acute and even overwhelming emotion. 58. As age advances sleep is much lessened ; and not only is the duration of repo?e abridged, but also its soundness; the rest of the aged being imperfect, and disturbed by dreams. It is dithcult to explain this — indeed no satisfactory explan- ation of it, has yet been offered ; but it is gene- rally observed, particularly in very advanced age. •59. Such are the changes induced by age in the various structures and functions of the body, as evidently caused by the gradual decline of the vital energy, from the period of full manhood to its ultimate extinction. 1 have described them as much divested as possible of the effects of dis- ease. As now noticed, those changes gradually lapse into death, — the lump of life having burnt out, its oil having been exhausted, after a gradual diminution of the supply, without any single oigan evincing that state of di-^ease to which the cessation of life can be ascribed. This is, how- ever, not a common occurrence ; for, during the gradual decay that marks the progress of agr, some organ or other, owing to the deleterious influ- ence of surroundins^ agents, or of mental emotions, and the weak resistance of the vital influence, experiences a more or less marked derangement, which increases to actual disease, and either abridges the remaining shoit period of existence, or renders it less supportable. I now proceed to notice the different epochs of advanced age, with reference chiefly to the dis- eases incidental to each, and to the therapeutical considerations which should influence the treat- ir.ent of them. (See Climacteric Disease.) 60. vi. Period, or Declining Age. — 1st Epoch, or declining age, extends from 42 or 45 to 55 in the female, and from 48 to 60 in the male. — a. During this period the ap- petites, occupations, and habits express them- selves still more strongly upon the outward ap- pearance of the frame than in that immediately preceding it ; and the feelings, emotions, dis- appointments, and anxieties of life manifest more fully their effects upon the internal organs, as well as upon the external aspect. Venous con- gestions, visceral obstructions and engorgements, with all the specific forms of disease already enumerated (§30.), are more frequent than during earlierepochs, particularly apoplexy and paralysis, haemorrhoids, hepatic disorder, dropsies, siruitural change in the kidneys and bladder, hypochon- driasis, ha;matemesis, gout, and chronic affections of the respiratory organs. 61. h. In this period, the second great change to which the constitution of the female is liable generally occurs, terminating that epoch in which her sexual constitution is especially marked ; and with this change frefjuently commence, or are matured, several diseases of the female organs. Alorbid changes of the uterus and its appendages, as well as of the breast, are now very fretjuent ; and sometimes ihey assume a malignant chaiacter. Various maladies, to wiiich the female was less exposed than the male, are now oltener met with ; and her con-'titution, with its disposition to disease, approaches more nearly to that of the male than during the time of maiked uterine activity. 62. 2d Epoch, or advanced age, may be reck- oned to commence about 55, and to extend to 63 or 68 for the female ; and to begin about 60, and extend to 65 or 70, in the male. During this epoch the nervous, circulating, and muscular energies begin to languish, with the vital actions of the different internal organs. The functions of the sexual organs gradually disappear. The female no longer conceives ; and sexual plethora has ceased to supervene and to relieve itself by a periodical disciiarge. The ovaria begin now to be gradually diminished in bulk, and to assume a firmer structure ; the appetite for procreation slowly disappearitig(§§43.54.). — The male organs also either become less disposed to their proper functions, or nearly altogether lose the faculty of performing them, particularly when the ener gies of the constitution have been exhausted by previous indulgences carried to an excessive length, or by mental exertions. The teeth decay, and the digestive functions suffer from the imper- fect mastication of the food (§ 41.). 63. vii. Period, or Old Age. — 1st Epoch, or ripe old age, dates from the preceding, and extends to 75 or 80 in both sexes. During this term the sensiferous and sanguiferous systems languish more and more, and all the vital organs experience a rapid decline of activity. The teeth fall out, the gums are partially absorbed, and the digestive functions are greatly impaired. The sexual organs are nearly or altogether deprived of their func- tions ; the digestive and assimilating viscera ex- perience a maiked diminution of power ; and senile marasmus, or the leanness of old age, ad- vances (§ 53.). 64. a. The diseases of this and the preceding epochs are chiefly weak or imperfect digestion and assimilation ; chronic inflammations ; general asthenia and cachexia ; apoplexies; paralysis; loss of the senses of sijht and hearing; senile gan- grene; comatose affections; dyspnoea; diseases of the heart and liver; dropsies; organic changes in the urinary and sexual organs of both sexes; passive haemorrhages, from the stomach, bowels, and urinary organs ; mental disorder; and gradual extinction of the vital functions and energies. Fel)rile and inflammatory diseases have a much more marked disposition to terminate in organic change, owing to the diminution of vital resistance, than during the preceding epochs of life. 65. h. Thu therupi'utical indications of this period are in some respects important, but chiefly with refei'ence to the necessity of supporting the powers of life (luring the diseases to which it is liable. When inflammatory or febrile disorder is present, and depletions or evacuations are necessary, we should, particularly if we employ them actively, watch tiieir effects, and resort to the use of means calculated to support the frame as soon as indi- cation-^ of exhaustion are manifested. Purgatives at this period should, if frequently repeated, al- ways be combined with warm, tonic, or support- ing medicines, or with a restorative regimen ; and a strict reference ought to be made to the habits, constitutional powers, and feelings of the patient, in all the remedies we prescribe. Old habits must not be suddenly relinquisiied or opposed, and tiie powers of life should be carefully watched ; for, if unheedingly reduced, they will, parti(!ulaily in large cities, often sink most ra- pidly, wilho'it the ])ower,of rallying. When we AG E — Decuepitude. 49 consider tliat, in persons advanced to this age, a considerable portion of the arterial system is often in a state of slow organic disease ; that the venous system is prone to congestion, is sometimes re- laxed and almost varicose, always deficient in vital contractility, and scarcely able to perform its functions; and that both the one and the other cannot thereby so readily accommodate themselves to sudden or copious losses of blood as in early life and when they are perfectly free from disease, we cannot be surprised at the sudden depression occasioned by vascular depletion, or other means which produce a rapid discharge by the emunc- tories of the watery parts of the blood, or a sudden depression of the nervous energy, even although symptoms seemed unequivocally to demand their employment. 66. The last epoch, or that of Decrepitude, or second infancy, commences at from 75 to 85, and terminates the life of those whose span of existence is thus far prolonged. A greater number of fe- males than of males reach this extreme age, espe- cially the utmost extreme. During this period, all the physical and mental powers rapidly de- cline. The body emaciates, the muscles waste, and the adipose structure is absorbed ; the inte- guments becoming lax, wrinkled, dry, and dis- posed to retain accumulations of sordes. The knees totter and bend under the weight of the body ; the trunk stoops, and is incapable of any considerable motion, excepting forwards ; and the features are wan, devoid of colour, wrinkled, and emaciated, and apparently consisting chiefly of integumental covering (§33.). 67. a. Congestions, enlargements, obstructions, and even atrophy of the internal viscera; effu- sions of fluid into the shut cavities; irregularity of the heart's action from loss of its vital activity, or structural change of its valves, its arteries, or muscular texture, or from disproportion between the capacities of its compartments ; lesions of the vascular sy-.tem generally, in which either those of the arteries or of the veins predominate. Pas- sive haemorrhages from the mucous surfaces, particularly those of the alimentary canal and urinary apparatus ; general asthenia, or cachexia ; and slow extinction of the vital and natural func- tions of the frame, — the ganglial, tire cerebro- spinal, and the circulating systems ; and the di- gestive, the respiratory, the secreting, and excreting organs, evincing individually, or either of them conjointly with others, more or less disease, — are tiie principal causes of death : andthusman, whose mental and physical constitution and organisation were objects of profound study and admiration to himself, passes away ; the vital essence, that actu- ated the wisely devised frame with which it was so surprisingly associated, returning to the Divine source whence it emanated ; and the gross male- rials, which it combined and preserved in won- derful states of association, assuming novel modes of existence, and serving to form nevv beings much lower in the scale of organised creation. 68. b. The rapidity with which acute disease generally runs its course at this period, anrl the celerity with which organic change will frequently supervene and extmguish the dindy burning taper of life, require great decision and circumspection on the part of the physician. The resistance which the energies of life usually oppose both to the extension of disease to ether viscera from that Vol. I. first attacked, and to its disorganising efTects in its primary seat, is now so excessively weakened, that remedies, directed with a due regard to the previous habits of the patietit, in support of those energies, are particularly necessary. On the choice of cordial remedies, and on their appropriate ap- plication to the circumstances of individual cases, will deficnd their success, and the reputation of the physician. At this period,- depletions and all evacuations, excepting such as are requisite to carry off accumulations of morbid matters from the primte vite, and which impart, along with their evacuating operation, a restorative and cor- dial influence, must be abstained from ; and care should be taken that fainting, or even nervous de- pression, may not supervene from their action. Warmth, at this and the preceding terms of advanced age, is indispensably required, both in the clothing and apartments ; but it should be equable, and not too high. The lungs of very aged persons should be guarded from the ingress of very cold air, as the impression of cold in this organ paralyses its functions, arrests those changes which the blood undergoes during respiration, and induces apoplectic or comatose seizures, and idiopatliic syncope or inaction of the heart. For these reasons, also, atmospherical vicissitudes should be assiduously avoided, as far as the means of doing so are placed within our reach. There is scarcely any measure more influential in sup- porting the sinking vital energies of age than the communication of animal warmth, particularly from the young of our own species. This was well known to the ancients, and is one of the oldest restorative means of treatment practised, having been adopted by David. The aged ought also to avoid the use of very cold fluids, as being apt to depress the energy of the stomach below tiie power of healthy re-action. INIedicines, also, particularly purgatives of a cold nature, as the neutral salts, if exhibited at all, require to be combined with warm aromaticS or stimulants, in order to counteract their depressing influence upon the alimentary canal, and on the nerves of organic life. Bibliography. — G. E. Stahl, De Morborum ^tatum Funilamentis Pathologico Tlierapeuticis. Halae, 16fi8,4to. — F. Hffinann, De ^f^taiis Mutatione Morborum Causa et Keraeiiio. Hall. 1720, 4to. — Lmiuetts, Disser. Meta- mniphosis Hiiraana in Amoen. Acad, vol.vii. p. 143 U'elsted, De Xxnte Vergonte, 8vo. Lond. \Tli.— Plaz, De Brpvioris et Iiifirmioris Vita; Causis. Lips. 17S2 C. A. P/ii/itcs, D(- Decremento Homiii., iEtatis Periodo, et Ma- rasmo Senili in Specie. Halae, IK08.— J. //. F. Autenrielh, De Ortu qiiorund. Morbor. Piovectior. jEt.Ttis,&c. Tub. \iiOb J. Schneider, Handb. Uber die Krankh.des Mann- baren Alters. 2 abth., 180S-12. — Pinel, in Archives Gen. Mtdecine, t. xi. \>.l. — Foucart, in Ibid., t. v. p. 3'J8. ; t. vi. p. 87. — P. J. B. Esptirron, Essai sur les Ages de rHomme. Paris, Ann. vi. 8vo. — F. E. Jolly, Aper(;u Physiol, et Medical snr les Premiers Ages de la Vie Hu- maine, 4to. Paris, 1816 J. A. Gessner, De Mutationibus quas subit Infans statim postpartum. Erlaiig. 1795 H. X. .Boer, Versuch einer Darstellung des Kindlichen Or- ganismiisin Physiogolisch patholog.undTherapeut. Hin- sicht. Wien. 1813. — /?. G. Sc*)-, Progr. de Morbis Se- num. Viteb. 1807. — A. Carlide, Essay on the Disordersof Old Age. Lond. 1817. — i. H. Frirdlaciider, Fiinda- menta Doctrinie Pathologicse, &c. Lips. 1828. 8vo Rullier, art. Age, Dictionnaire de Medecine, en 18 vol., t.prem. Paris, 1821. — I,. J. Begin, art. /igilit, Blindness. Classif. 4. Class, Local Diseases ; 1. Order, Impaired Sensations (^Cullen). 4. Clans, Diseases of the jNervous Function ; 2. Order, AfJecting the Sensations (Good). Functional Amaurosis, I. Class, IV. Or- der. Orj^unic Amaurosis, IV. Class, III. Order {Author, see ihe Preface). \, Defin. Partial or total blindness, from affec. tion of the retina, or of the nerves, or of that part of the bruin related to the organ of sight, whether arising primarily from funciional disorder, congestion, infammation, or any other change of these parts ; or occurring from sympathy with otlier organs. Or, in other words. Partial or total loss of sight, from other causes than those ivliich obstruct the passage of the rays of light to the bottom of the eye. 2. Amaurosis is met with at all ages; but most frequently in the moie advanced terms of life. It is somelinses congenital ; and in these cases it is often difficult to ascertain the nature and seat of the affection. When it occurs at advanced periods of life, an attentive inquiry into the history of the disease, of the previous habits and ailments of the patient, and of the various resulting and related moibid phenomena, will generally ihrbw light upon its pathology. 3. I. Seat of .\maurosis. — 1st, In the retina:. — Viewing the delicate structure of the retina ; its relation to the optic nerve, of which it is an ex- pansion of great tenuity ; its connection with the choroid and hyaloid membrane, and its nervous and vascular communications ; and considering the various morbid slates it is liable to undergo, in consequence of its relations with these and other parts; a partial, and even total, abolition of its functions is to be looked for on some occasions. It is, like all other parts of the frame, liable to congestion and inflammation, with their usual re- sults; and, like other nervous parts, its functions are subject to a partial or complete extinction without itself evincing any change of structure, its sensibdity alone being impaired or abolished ; owing either to some unuppreciable change, or to some one or more of those alterations in its ad- joining or related parts about to be noticed. 4. 2d, In the optic nerves. — 'J'liese nerves may be more or less changed in some part of their course, from the anterior pair of the corpora quadrigeminu, along the thalami, the tubera ciiieiea, and their partial decussation, until they terminate in the formation of iheretinaa. In :)])preciating, however, lesions in the course of the optic nei ves, the results of experiments on them should be taken into con- sideration : — if an oplic nerve be divided previous to this decussation, sight is altogether lost on the ojjposiie side ; but if the division be made be- tween the decussation and the eye, vision is lest on ihe same side. 5. 3d, In the ganglial nerves. — There is every rea- son to suppose that the retina is in intimate commu- nication with other nerves, and that it mutually influences and is influenced by them. Branches of the great sympathetic may be traced upwards, from the first cervical ganglion, to the ganglion lodged in the cavernous sinus; whence branches proceed and communicate with the third, the fiist division of the fifth, and sixth pairs of nerves. Branches also passes from the cavernous ganglion directly to the lenticular ganglion. As the internal carotid artery passes into the cranium, it is sur- rounded by the sympathetic nerves, which accom- pany all its ramifications. The ophthalmic artery is invested with these nerves ; its branches to the choroid, iris, and retina being similarly provided. Branches of nerves, moreover, proceed from the lenticular ganglion, as IVL Ribes (JU^m de la Soc. Mtd. d'Eniulution, t. vii. p. 99.), and others have demonstrated, to the iris, giving more minute blanches in their course to the retina. This con- nection being established, morbid states of these nerves and ganglia, or changes of structure in their vicinity aflftcting their functions, must neces- sarily impair the sense of sight. 6. 4th, Other nerves, as ihe fifth and third pair are, in some cases, also the seat of amaurosis. It has been shown by Magendie and Desmoulins that the integrity of the fifth pair is necessary to the perfect function of the retina ; and Mr. Mayo has furnished evidence that the third pair is re- quisite to the motions of the pupil. If the great sypalhetic be divided in the upper part of the neck, the pupil becomes contracted and immove- able, and the eye wastes. 7. 5th, Parts of the encephalon connected with the optic nerves in their course are occasionally the seat of amaurosis, as pathological research and experiment have shown. MM. Magendie and Serues have proved that, when these parts are wounded, the sight of the opposite eye becomes either weak or extinct. 8. 6th, The pineal and pituitary glands are frequently the only parts in which any alteration can be detected in the examination of amaurotic subjects. The connection of these glands with the ganglial system is stated at another place. Besides these, other parts of the brain, when the seat of organic disease, are not infrequently the principal source of amaurosis, as shown here- after. 9. 11. Causes. — 1st, The predisposing causes of amaurosis are very diversified. Amongst these, the influence of heredilaiy disposition is well esta- blished. Beer traced it in several families ; in one of them through three successive generations, and parliculaily in the females of that family who luul not boine childien, it having appeared in them at the cessation of the menses. Heir also states, that dark eyes are much more liable to it than ihe light ; the proportion being upwards of twenty to one. 10. VVliatever tends to favour sanguineous con- gestion of, or seious iflusion in, the encephalon, particularly insolation ; foiced exertions of the mind or body ; excesses of passion ; the pregnant and puerperal states; occujiations requiring fre- quent stooping ; errors of diet, and neglected ail- ments affecting the stomach and liver ; the abuse of wine or spirituous litjuois; suppressed dis- charges, particularly those from the nose and ears; interruption or entire cessation, of the AMAUROSIS — Pathology of. 51 menses ; the gouty, rheumatic, and strumous diathesis ; the retrocession or suppression of eruptive diseases; and habitual constipation; — whatever exhausts tiie vital energy of the brain, and nerves supplying the organ, as ciironic diar- rhoea, typhoid fevers, the excessive use of snuff, long-continued grief, prolonged suckling, neg- lected (luor albus, excessive venery, and manus- trupation ; — and lastly, whatever exhausts slowly the sensibility of the organs of sight themselves ; as the incautious use of the eyes in a glaring light or on minute objects, and the existence of strumous ophthalmia in childhood, generally pre- disjhise to amaurosis. 11. 2d, The exciting causes are very numerous; indeed, any of the causes enumerated as merely predisposing to the alFection may excite it, when acting long or intensely, although the successive or combined action of various causes are gene- rally required. Amongst the most common ex- citing causes, are over-exertion of the sight ; exposure to very bright light ; its occupation on minute object*!, or employment in candle or lamp light, and during the hours usually devoted to sleep. The sensibility of the retina may be de- stroyed, even by a single exposure to these causes. Lightning is another cau^e, which seems to act by extinguishing the sensibility of this very deli- cate part. In general, however, it is the long- continued over-excitement of the organs of sight that occasions the gradual abolition of their func- tions. Injuries on the eye, and in its vicinity, are also frequent causes of the disease. 12. Poisonous substances occasionally pro- duce an attack of amaurosis ; sometimes sud- denly, at other times slowly. Belladonna, stra- monium, solanum dulcamara, &c., fish-poison, various fungi, and animal poisons, occasionally have the former effect ; but it is most frequently only of temporary duration ; whilst other nar- cotics taken habitually, as opium and tobacco, produce the latter effect, and in a more perma- nent manner. 1 he poison of lead, blows on the head, child-labour, and puerperal convuNion, frequent attacks of epileptic or other convulsions, cerebral apoplexies and paralysis, injuries of the branches of the fifth pair of nerves (three cases of which have come before me), anus, and muscee vo- litantes; a somewhat contracted pupil, and clear stale ol the humours; equal imperfection of sight in both eyes; pale, languid countenance, and de- pression of the eyes in tlie orbits; a languid, small, or weak pulse ; increased dimness, or sudden abo- lition of sight upon quickly assuming the erect, from the horizontal postuie. An improved state of the sight after a light meal, or grateful stimulus; nervous headachs; weak digestion, sluggish state of the bowels, flatulency, foul or loaded tongue, and indisposition for, as well as incapability of, physical or mental exertion or occupation : weak- nessiii the joints; occasionally nocturnal emissions, &c. in the male, and leucorrhoea in the lemale. 40. This species of amaurosis may be, 1st, Prinuiry and uncomplicated. — In this case it usually proceeds from causes which depress or exhaust the sensibility of the retina and its re- lated nerves. 2d, It may likewise be consecutive ; particularly of excessive secretions and discharges from the uterus, mamma;, kidneys, testes, and prostate ; or from exhausting and debilitating diseases, as adynamic diseases, haemorrhages, &c. 3d, Sytnplomatic of, or complicated with, hysteria, hypochondriasis, colica pictorium, diminished vital energy of the digestive organs, and all the various forms of indigestion ; the presence of worms in the bowels: pregnancy; obstruction and accu- mulation of bile in the bile-ducts or bladder, &c. : and, 4th, Metastatic, or supervening upon impeded or checked secretions and discharges; in which cases it is generally accompanied with congestion, or determination of blood to the head, in which the eyes may partake, but not to an extent con- stituting infiammatoiy action or organic change; and it assumes a slate nearly approaching to that characterising tlie next species. 41. Upcc. 2d, AnuDtrosisJiom active congestitions; u])on frequent stooping, or wearing a tight neckcloth ; upon fits of passion, when it occurs in plethoric persons ; and after narcotic poisons. 42. 'I'he symptoms indicating it, are throbbing in the eyes, tinnitus aurium, turgescence of the vessels of the sclerotica and conjunctiva, a some- AMAUROSIS — Species op. 65 what contracted pupil, and clear state of the humours ; turgescence of the features, or lividily or bloatedness of tlie face ; fulness of the jugular veins, prominence of the eyes, and impeded circu- lation through the lungs or cavities of tlie heart. 43. This form of the disease is seldom primary and uncomplicated. It is commonly consecutice, or symptomatic, generally of obstructed discharges, &:c. (§ 12.). of disease within the head, particu- larly of sanguineous congestions, or effusions, and diseases of the lungs and heart. It not infre- quently occurs transitorily from pregnancy, epi- lepsy, and hysteria; and more rarely from gout and rheumatism. 44. Spec. 3d, Amaurosis from h^ammation of iheretitia, and internal parts of theeife. — In stating amaurosis to be often a symptom merely of reti- nitis, I am supported by the opinions of many of the best British and Continental writers on the disease. But I believe it very seldom occurs, that the inflammation is limited to tliis membrane, but that the choroid and iri-i generally participate with it in the morbid action ; and that, when tliey, on the other hand, are thus affected, the retina is also inflamed. Amaurosis is tiierefore a consequence of inflammation of the internal struc- tures of the eye: but does inflammation of these parts uniformly produce amaurosis? It is not always consecutive of iritis ; and I believe that the retina may be inflamed, and yet but very slij^ht amaurotic symptoms may be occasioned thereby, particularly during tlie early stages of the retinitis. It is chiefly when the inflammatory action has produced some degree of organic lesion of the affected parts, that amaurosis is manifested. 45. This form of amaurosis generally proceeds from nearly the same causes as the foregoing (§ 10 — 12. ). It may be produced by syphilis, mer- cury, eruptive and continued fevers, cold in any form acting upon the eyes or face ; suppressed discharges, or eruptions on the iiead or behind the ears; injuries of the eye and adjoining parts; concussions, and the usual causes of inflamma- tion in other parts. 46. The symptoms vary with the extent and intensity of the inflammation. In its slighter slates, the progress of the disease, and of the symptoms, is insidious and slow. In these cases, little or no pain is complained of, either in the eye or in the head. 'i"he pupil is more commonly contracted than dilated, and the spectra are usually luminous, but sometimes not very sensi- bly so. With this slight and often chronic state of inflammatory action, the amaurosis may be increasing fast, and the observation of vision very great, and yet the symptoms may not be dis- tinctive ; if we except the appearances furnished by the sclerotic, which, in retiniti-;, as well as in iritis, abounds in red vessels, converging in distinct lines, and forming, by their delicate reticulations, a red zone round the cornea, and which thus furnishes the only symptom, that can be depended upon, of slight or incipient retinitis. 47. In the more intense states of inflammation of the internal parts of the eye. the amaurosis is attended with painful vision ; intolerance of light ; sparks of fire, or drops of a red colour falling from the eyes ; flashes of light ; pain darting through the head, either from, or to the bottom of the eye- balls; the pupils are dilated, and the humours thick or muddy ; and there are more or less acceleration of pulse and constitutional dis- turbance. 40. I'his species of amaurosis is often primary, or idiopathic ; it may also be simple or compli- cated. When it occurs in a complicated form, it is, most frequently, associated with iritis, with meningitis, with eruptive or continued fevers, and with rheumatism, gout, or syphilis. It may also occur consecutively, and from metastatis, particularly after the disappearance of exanthe- matous eruptions, as in the measles, small-pox, erysipelas ; of chronic eruptions ; and after the suppression of habitual or periodical discharges, secretions, and evacuations (§ 12.). 49. Spec. 4th, Amaurosis from advanced dis- organisation of the retina and adjoining parts. — Disorganisation of these parts is usually a result of inflammation. But it is diflicult to determine at what stage of the inflammation organic change commences. I am to consider it here as far advanced ; yet, the inflammation that occasioned it may be still present. The causes of this species are the same as those of the foregoing ; but the symptoms are somewhat different. The vision is more obscured. A film seems interposed between the eye and field of vision. The pupil is sluggish, and it is often scarcely dilated ; it is frequently irregular. The margin of the iris sometimes partly adheres to the capsule of the lens. The sclerotic is often very vascular, and even livid, from the enlarged and loaded state of its veins, which are very numerous and tortuous. The shape of the eye is sometimes changed, particu- larly in the most advanced cases ; it is prominent in some parts, and depressed in others. The eyeball is occasionally, also, softer or firmer than natural. 50. This form of amaurosis is always consecu- tive of the second and third species, moie particu- larly of the latter; and hence, participates in many of their characters (§ 41-^48.), and occurs under many of the same circumstances as they. It is occasionally complicated with cataract, with opacities of the cornea, or with disorganisation of parts within the head. 51. 5/»er. 5th, Amaurosis from external inj uries of the eyes. — A blow on the eyeball will not infrequently occasion blindness, without produc- ing any apparent injury of its visible parts. It is difficult, or altogether impossible, to ascertain the nature of the mischief that has been inflicted. The concussion of the organ, and the lesion of the sensibility of the retina and optic nerve, may, in some of the cases, particularly when the con- sequent amaurosis is merely temporary, constitute the prmclpil or only change. In more perma- nent and severe instances, it is very probable that the delicate connections of the retina with the adjoining parts are injured. Ecchymosis may also be occasioned, or inflammation may super- vene. In these cases the pupil is either dilated, or of an irregular form ; and according to the ex- tent of injury will the phenomena partake of the characters which have been assigned to the third and fourth species of the disease. 52. Spec. 6th, Amaurosis from disease icithin the head affecting the functions of the optic nerve, or other nerves subservient to the sense oj sight. — It is obvious that disease within the cranium, either of the substance of the biain, or of its membranes, E 4 55 AMAUROSIS— Species of. producing pressure of, or interrupted circulation in, the parts with which the optic nerve is con- nected at its origin, or during its course, or acting in a similar manner on the nerve itself, will pro- duce amaurosis. In these cases it is a consecvtive affection — a symptom merely of disease, often existing for a long time previously. I have al- ready alluded to the nature of these lesions, and to their extreme diversity (§ 17, 18.). Perhaps the most common and the most interesting of them are organic changes of the pituitary and pineal glands, hasmorrhage, sanguineous congestion, aneurismal and other tumours, &c. In these cases it is very common to find cerebral symptoms complained of long before the sight is affected ; and to observe the gradual accession of the dis- ease either in one or both eyes ; or first in one and afterwards in another, with complete loss of vision, followed at last by changes of the structure of the eye. 53. When organic lesion of the pituitary and pineal glands has occasioned the disease, judging from the cases recorded by De Ha en, Wenzel, Vieussens, Levfque, Ward, Rullier, and Raver, both eyes are generally gradually and equally affected, after the existence of ce- rebral symptoms, chiefly consisting of pain and weight referred to the more ;interior parts of the head ; of a repugnance to exertion, apathy, loss of memory, and weakness of the mental energies. In casesof sanguineous congestion, or haemorrhages in the situations referred to, the attack, is sudden, and the blindness is often not the most remarkable symptom. 54. In some cases resulting from organic dis- ease within the head, cerebral symptoms, particu- lai'ly tiiose of an acute kind, are not complained of until the amaurosis is far advanced. In its progress, objects frequently seem to the patient disfigured or perverted. In many cases of amau- rosis from organic change of the skull, mem- branes, or brain, the affection commences with intolerance of light, strabismus, giddiness, lumin- ous spectra, convulsive motions of the eyes and eyelids, contracted pupil, and turgescence of the blood-vessels of the eyes, loss of hearing, smell or taste, or both, violent headach, rapidly followed by complete amaurc^is, protrusion of the eyeball, and abolition of the external senses and of the powers of mind. 55. This species of amaurosis is often comjHi- cated with, or preceded by, epilepsy, paralysis, apoplexy, otorrhoea, or disease of the ears, hys- teria, and various nervous affections. It is chiefly by attending to these antecedent disorders, or oilier slighter cerebral symptoms, that we can form any idea of the nature of the amaurosis. The appear- ance of the eye, and particularly of the pupil, is not to be dependeil upon ; for, although the pupil is usually dilated and immoveable, the exceptions are too numerous to admit of considering it us an uniform occurrence. 56. .S/;ec. 7th, Amaurosis from disease of the optic nerves, or of tlieir ^Iieaths. — This species of amauro-is always advances slowly, generally com- mencing in one eye, with a black cloud, which grows more and more dense, great (liHfi;;urement and perversion of objects, without pain of the head or eye. There is, however, a sensation of pres- sure ut the bottom of the eye, as if forcing the eyeball from its socket. The pupil is generally. from the commencement, much dilated, and an- gular, from irregular action of the iris. By de- grees, according to Beee, glaucomatous change of the vitreous humour supervenes, and afterwards of the lens itself, but without any varicose affection of the vessels of the eye. At last the eyeball be- comes somewhat smaller than natural, but com- plete atrophy does not ensue. 57. Spec. 8lh, Amaurosis from lesiorts of branches of the fifth nerve, ^c. — The experiments of Bell and Magendie first threw light upon this cause or form of amaurosis. I believe that it is by no means infrequent. Four cases of it have come before me in private practice ; in three of which the principal trunk or branches of the ophthalmic nerve were implicated. In one of these the amaurosis was very slight; in the other two it was very considerable, although not com- plete, and was a consecutive phenomenon of very extensive disease. I saw two of them, ia consultation with respectable practitioners in my vicinity. The fourth case very recently occurred in a member of my own family. In it the frontal branch on the right side was pressed upon by a common boil , the sight of the eye was nearly altogether lost, but was soon restored when the boil broke. 58. Numerous cases are on record, in which partial amaurosis is said to have occurred after injuries and wounds of the eyebrows, cheeks, and forehead ; or from the irritation and extraction of diseased teeth. The appearance of the disease from these causes was noticed by Morgagni, PiNE[,, Beer, VVardrop, Travers, Penada, RiuEs, &c., before the functions of this nerve were so well known as they are now. Its occur- rence from wounds of the eyebrows is mentioned even in the writings of Hippocrates. 59. Amaurosis from these causes is, in some rare instances, complicated with facial neuralgia, toothach, rheumatism of the face, and tumours or abscesses developed in the vicinity of the eye, and within the cranium in the course of the fifth nerve. 1 met with it in a case of otorrhoea, ter- minating in caries of the bones, and extensive disease of the internal parts in the vicinity. It is also, in some cases, accompanied with paralysis of the upper lid, and in others with paralysis of different muscles of the eye. In these cases, the third or sixth nerves have, most probably, been chiefly affected. When the ophtlialmic nerve is affected within the cranium, it is difficult, if not impossible, to determine the particular seat of lesion from the amaurotic symptoms. Facts have not been observed in sufficient number, and with requisite precision, to admit of any statement being made respecting the pupil and motions of the iris in this species of the disease. I believe, however, that serious organic, as well as functional, lesions of the organ may supervene to it. 60. There are other varieties of amaurosis par- ticularised by BEr.ii, Wei.i.er, Sanson, and other German and French wiiters, some of them of rare or doubtful existence, or at least referable to the species into which I have here divided the disease. From amongst these I may enume- rate the following: — Gouty amaurosis; rheu- matic amaurosis ; amaurosis from the sudden re- pidsion, or cure of cutaneous eruptions, or old ulcers ; amaurosis from suppressed secretions and evacuations ; puerperal amaurosis, &c. It is AMAUROSIS — Diagnosis — PnooNosis. 57 evident that these are only occasional, and by no means fiequent causes of the disease, which ought to be kept in recollection by the practi- tioner, but which can act only by inducing some one or other of the forms into which it has been divided ; more particularly the second, tliird, fourth, and sixth. In as far as tliey may require a modified plan of treatment, they will receive attention in the sequel. 61. In addition to these, I may notice, the cat's- ei/e amaurosis of Beeu, which is only met with in tiie old, debilitated, thin, and emaciated: parti- cularly those who are grey or white-headed. At the commencement of this amaurosis, the iris re- tains its mobility ; but it afterwards is slow and the pupil dilated. Deep in the bottom of the eye, a concave pale grey, or yellowish green, or reddish, variegated opacity is observed. The further the disease advances, the paler the bottom of the eye becomes, the paleness extending to the iris, until at last a slender vascular plexus — the ordinary ramification of the central artery and vein — may be discerned. With this state of the eye, decline or total abolition of vision is the consequence. This rare form of amaurosis seems to consist of a deficiency of the pigmentum nigrum, and of the tapetum of the uvea. It appears closely allied to far advanced glaucoma, 'i'his form of the disease is seldom or ever benefited by medical treatment. 62. V. Diagnosis. — Amaurosis is liable to be mistaken for incipient cataract, and for glau- cnma. When cataract is fully developed, the two diseases can scarcely be confounded. That a clear diagnosis should be made between incipient cataract and amaurosis is of the greatest import- ance in practice. — A. As to the impaired vision in both diseases at their commencement, it may be remarked that in cataract, the difficulty of sight increases very slowly, and is compared to a dif- fused mist, thin cloud, or gauze intervening between the eye and the object; whereas in amaurosis, the dimness or loss of sight is either sudden or partial, resembling a fly, spots, or motes covering parts of an object. However, a mist, or thin cloud, often is complained of in incipient health — excepting in the cat 's-eye amaurosis of Beer, which is of rare occurrence, and presented to us under circumstances not to be mistaken, -r-or a paleness or greenness, visible only when the eye is examined in particular directions, constituting amaurosis with glaucoma. This appearance evi- dently arises from deficiency of the pigmentum nigrum, and incipient dissolution of the hyaloid membrane ; and when it amounts to a high de- gree, constitutes the cat's-eye amaurosis of Beeu. 65. Rlr. Mackenzie remarks on this subject, that attention to the following circumstances will generally enable the observer to distinguish glau- comatous amaurosis and cataract : — 1st, The opacity in glaucoma is always greenish, whereas in incipient cataract it is always greyish. 2d, The opacity in glaucoma appears seated at a consider- able distance behind the pupil, or deep in the vitreous humour ; whereas in lenticular cataract, the opacity is close behind the pupil. In posterior capsular cataract, the opacity is deep in the eye, but is always streaked ; whereas the glaucomatous reflection is always uniform, never spotted, nor radiated. 3d, Upon close examination of the surface of lenticular opacity by means of a doubly convex lens, it is seen slightly rough, somewhat dull, never smooth or polished — forming in these respects, a striking contrast to the appearances presented by glaucomatous opacity. 4th, The eyeball, in glaucomatous amaurosis, always feels firmer than natural ; while in cataract it presents the usual degree of firmness. 5th, Glaucoma proceeds very slowly in its course, scarcely in- creasing for years; whereas the vision, in cataract, much more rapidly declines, and keeps pace with the growing opacity. 66. D. The mobility of the iris is a principal source of diagnosis. For, in incipient cataract, the contractions of the pupil are as extensive and as vivid as in health ; but in incipient amaurosis the pupil is either dilated and fixed, or its motions limited and slow. Also, in -the latter disease, the movements of the eyeballs and eyelids are often imperfect, or difficuU ; whereas no impediment of this description exists in cataract. In many cases amaurosis, and, increasing in density, at last de- I of amaurosis, we observe a want of direction in prives the patient of sight ; but a complete depri- vation of sight never occurs in cataract. As inci- pient cataract depends upon commencing opacity, generally at the centre of the lens, the appearance of a mi^t, &c., is generally most perceived when the patient looks straight forward ; vision being more distinct when he looks sideways. This com- monly does not obtain in amaurosis, although it sometimes does. 63. B. The degree of light which the pa- tient desires is also important. When amaurosis depends upon insensibility of the retina, there is a great desire of strong light, and he sees the best at noonday, or when objects are brilliantly illu- minated. The opposite of this obtains in cataract ; for a strong light, causing the pupil to contract, the rays of light reflected from the object must pass chiefly through the central and more opaque part of the letis. In addition to this we should attend to the antecedent and attendant symptoms of amaurosis; especially vertigo, headacii, dis- order of the digestive organs, tvithout which cata- ract usually commences. 64. C. Upon examining the pupil, incipient amaurosis presents either the jet-black colour of the eyes, or a slight degree of strabismus, not in- frequently with a want of power over the motions of the upper lid, — symptoms that never occur in cataract. 67. VI. Prognosis. — This is unfavourable. When the cause of the disease is evident, and it is merely functional, or simply congestive or in- flammatory, and the patient young, or in the prime of life, but under middle age, a complete cure is not infrequent. This may be obtained although much more rarely, even when the loss of sight is total. But in every case the predisposing and exciting causes, and the effects of remedies, must be taken into account in forming our prognosis, I\Iuch more commonly only partial amendment is produced. Amaurosis is generally less unfavour- able when suddenly, than when slowly induced. \\hen the pupil is only slightly dilated, still moveable, of its natural form, the eyeball neither firmer nor softer than in health, and no glaucoma present, the progno-is is obviously more favourable than when the pupil is fixed in the states either of expansion or contraction, or when the eyeball is either boggy or preternaturally hard, or when the botttom of the eye presents a greenish opacity. 58 AMAUROSIS — Theatment. 68. If the attack has been sudden, and nearly complete, or if objects are seen in a perverted or distorted form, or double ; if the amaurosis be attended with want of power in the muscles of the eyeball or eyelids, we should suspect that the cause consists of general or partial pressure, or other organic disease, within the cranium, which, although indicating both danger and the perma- nent loss of sight, will sometimes be removed by energetic treatment. If one amaurotic and para- lytic symptom slowly supervene on another, we should dread the gradual development of tu- mours, cysts, exostosis, &c. within the head, the situation and nature of which can be suspected only, and chiefly from the nature of the attendant or preceding symptoms. But in all these the prognosis is necessarily very unfavourable. ( 69. VII. Treatment. — In order to employ remedies in this afl'ection with any degree of benefit, it will be necessary to direct them with a very particular reference to the pathological con- ditions of the eyes, the brain, and system generally, a^ now pointed out. Having separated the dis- ease into the foregoing species or varieties, in order that the treatment may be pointed out with greater precision, I proceed to detail the measures which I consider appropriate to each, conformably to the most experienced authors and to my own observation. 70. A. Of the first species. — The treatment of this, the most strictly functional form of the disease, should have strict reference to the causes which induced it, — whether those acting directly on the organ, or those which act indirectly, and in consequence of inducing disorder of other parts. When amaurosis proceeds from direct causes, cither of a depressing or an exhausting nature, the appearance of the eye, as well as the ciiarac- terof the symptoms, require an attentive examin- ation, ciiiefly with a view to ascertain the existence of inflammatory action, or even active congestion of the internal parts. A complete removal of the causes must be insisted on ; and. if no symp<- toms indicative of inflammation (§ 46.) exist, but, on the contrary, debility, a languid circulation, musc(E volitantes, or dark spectra, &c. (§ 39.), tonics and stimulants, both internally and exter- nally, are required. A light, nutritious, and invigorating diet, with change of air, lepose of tiie organs, moderate exercise, vegetable, and af- terwards mineral tonic-:, and the usual means of improving the digestive organs, and promoting the functions of the bowels and secreting viscera, are in the^e cases chiefly to he depended on. Small doses of stri/chnine, or of the extract of iivx vomica, may also be given (Fohm. 541. 565.). \Vhen, however, we find evidence of congestion or increased vascular action of the internal parts of the eye to have been inay be ex- liiliited ; but, unless the symptoms of interrupted digestion, or of indigestible and injurious sub- stances remaining upon the stomach, or of biliary obstruction, be uneciuivocally present, little ad- vantage will be derived from them ; in plethoric persons, or where these causes of disorder do not exist, they may be even injurious. Amaurosis from disorder of the digestive organ is generally imperfect, and sometimes slight ; and its progress slow. In this form, Scarpa recommends fult vomiting to be produced by the patient taking a spoonful, every half hour, of a solution of three grains of tartar emetic in four ounces of water; and, on the following day, opening pow- ders to be commenced with, consisting of an ounce of bitartrate of potash and one grain of potassio-tartrate of antimony, divided into six equal parts. The patient is to take one of these parts in the morning, another four hours afterwards, and a third in the evening, for eight or ten suc- cessive days. The efl'ects of these are, nausea, and increased evacuations from the bowels; and, in the course of a few days, vomiting. If, during their use the patient should complain of a bitter taste in the mouth, vain efforts at vomiting, and no improvement of sight, the emetic, as at first directed, is to be again taken ; and this is to be repeated a third or fourth time, if the bitter taste, acid eructations, nausea, &c., continue. The re- petition will often at last succeed in procuring the discharge of a yellowish or greenish matter from the stomach, to the relief of the head and eyes. 72. The stomach, and through it the liver, having been thus acted upon, the following re- solvent pills of Sciimucker are to be taken, to the extent of fifteen grains, night and morning. No. 11.1^ Gum. Sagapen., Gum. Galliani, Sapon.Venet., aa3j-; RheiSjss.; Antimonii Pot.-'l'artralis gr. xv.; Ext. Glycyrrh. 3j. Divide in Pilul. gr. iij. These pills are to be continued for four or six weeks. Instead of these, the pills recommended by RiciiTER may be prescribed. No. 12. R Gum. Ammr.niaci, Gum. Assafoetid., S;ip. Venet., Had. Valerian., Summit, Arnicae, aa 3ij. ; Anti- monii Potassio-Tartratis gr. xviij.; Syrup, q. s. M. at divide in Pilulas gr. iij. From twenty to thirty grains are to be taken three times a day for some weeks. 73. If these succeed in improving the state of the stomach and sight, Scarpa directs means cal- culated to strengthen the digestive organs, and nervous system ; such as the daily exhibition of bark and valerian, more particularly in periodic amaurosis; a light, digestible animal diet, with a moderate quantity of wine, and wholesome air and exercise. He further prescribes, as advised by 'I'mi.ENius and Moiuggia, the vapour of liquor amrnoniw. directed to the eye, with the view of ex- citing the nerves of the organ ; and employed, three or four times a day, so as to occasion each time a copious secretion of tears. In conjunction with the use of this vapour, other external stimu- lants, as blisters to the nape of the neck, behind the ears, or to the temples ; irritation of the nerves of the nostrils by sternutative powders ; and, lastly, sparks of electricity may be resorted to. \'arious volatile substances, spirituous, saline, and olea- ginous, have been recommended to be applied to the eyes, either in a stute of vtipour, or of solution, and dropped into them, by Warner, Sa(;ah, ftlANARDlIS, IJUNCKLER, ClIOMEL, St. YvES, Bud Sciimucker ; but these require to be cautiously resorted to. Substances of a like description have also been prescribed in the form of collyria, in this species of amaurosis. J'i.enck recommends for this purpose a diachm of the crocus metal- lorum dissolved in rose-water ; or a portion of the following : — No. 13. B Spirit. Lillior. Conval., Spir. Lavand., Spir. Rorismar., Hydrochlor. Aniraon.,aa3j.; Spir. Bals. Vitae Hoffman. 3 ss. M. to be poured in the palm of the hand, and held before the e^-es. The application of cold and slightly stimulating washes and baths to the eye, and bathing the whole head, or eyes, in cold water, have been approved by Riciiter and Beer. Mr. Travers, however, slates, that he has never obtained any decided advantage, in amaurosis, from ' applications made directly to the eyes. Both elec- tricity and galvanism have received the recom- mendation of Ware, Lentin (Beutriige, iv. b. p. 102.), and Os-^iander (Abhaiidl. Med. Soc. zii ErUiiig. i.b. No. 8.). Moias applied in the course of the facial nerves have been used by Larrey ; and the actual cauleiy behind the ears by Kulo- uoviTCH. (Archives Gener. de Mtd. t. xvi. p. 452.) 74. In this species of amaurosis, both in cases of the above description as well in those which proceed from the over exeitionof the siglit, the external applicatuvi of striichnine promises to be of considerable advantage. Mr. Liston, Dr. Short {Lond. Med. Gaz. vol. v. p. 541.), and Dr. Heathcote (Medico-Chirurgical Rev., July 1830), have thus employed it with decided bene- fit. After blistering the temples, and removing the cuticle, from one eighth to one fourth of a grain of pure strychnine was applied to the de- nuded surface on each side daily, and the appli- cation renewed each day, and gradually increased to a grain. In one case the quantity was in- creased to three grains, but it is seldom requisite, and it may sometimes not be safe, to exceed half this quantity. In some cases it will be necessary to re-blister, oftener than once, the surface, after repeated applications of the .strychnine. Cata- plasms of capsicum have also been employed with advantage to the temples. Gahn mentions them with approbation ; and I have seen them used in amaurosis, with decided benefit, by the native doctors in warm climates. Hoffmann and Trew employed the cajeput oil in this manner, and Warner the animal oil of Dippel. 75. Mr. Travers and JMr. Lawrence are not advocates for the use of e7netics. The former pre- fers to remove the gastric disorder by a course of blue pill, with gentle saline aperients and vege- table tonics. lie recommends the combination of blue pill with colocynth, rhubarb, and aloes ; and of soda with calumba, gentian, or rhubarb; with the view of promoting or regulating the ab- dominal functions. After these he advises the use of general tonics, as the mineral acids, bark, steel, and arsenic. Mr. Lawrence chiefly ap- proves of attention to the general health, by resi- dence in a pure air ; out-of-door exercise : mild, plain, but nutritious food; gentle aperients, and occasionally an active purgative ; repose of the alected organ; counter-in itation by a succes- sion of blisters, an open blister, or setons. Beer is also against the use of emetics. He prefers the employment of brisk cathartics; followed by the use of anthelmintics, when we suspect the pre- sence of worms in the bowels. Ilubefacients, stimulants, and blisters to the temples and eye- brows, are lavourably mentioned by him. 76. There can be no doubt of the propriety of the measures recommended by the above writers; AMAUROSIS — Treatment. 59 but are we to remain content with them alone, in cases where amendment from them is either slow or not apparent? I think not; and therefore are we required to devise additional means. Those already recommended by the eminent continental authorities, as stated above (§ 71, 72.), and the external medication already described {§ 73,74.), have both authority and reason in their favour, if duly followed. But it may be useful to suggest others. For, in cases of this disease, the practi- tioner will have reason oftener to regret the want, than to be perplexed by a diversity, of rational resources. 77. After having had recourse to evacuations, to emetics with great ciiution, and, under the circumstances slated above (§ 71.), always to aperients, alteratives, and occasionally to bri-k purgatives, promoted by enemata, suited to the peculiarities of the case, and repeated as long as the secretions are impeded, and the evacutions offensive, or of an unhealthy colour, other internal means must be sought for, if necessary. Amongst these, in this species of the disease, camphor com- bined with arnica, and in considerable doses, has been recommended by Flemming (Hiifeland's Journ. &;c. Jan. 1810, and May 1812) ; the rhus toxicddendron, or the rhns radicans, in the form of tincture, by Basse and Hufeland (Joiirn, der Pract. Heilk. <^c. Jan. 1811); and phosphorus by LoEBEL {Horn's Archiv, Nov. 1812, p. 397.) IMusk, castor, assafoetida, valerian, and zinc, have also been favourably noticed by Beer. 78. It is chiefly in this form of the disease that advantage, if any, will be derived from the use of aconilum, which, however, has received the appro- bation of BoEHMER, Collin, Stoeller, Rein- iioLD, Gesner, and other respectable authorities, particularly when the affection is connected with chronic rheumatism, or atonic gout, or occurs in the gouty and rheumatic diathesis. Guaiucum has been recommended by WiNTRiNOHAiu ; and, under the circumstances of -disease now alluded to, particularly when combined with camphor and ammonia, and given after due alvine evacua- tions have been procured, is calculated to prove beneficial. The arnica montana, which has been prescribed by Baldinger, Collin, Franck, 'J'ni- LENius, and Angeli, is applicable to this form of amaurosis only. It is most probably from having employed it in very difierent states of the disease, — in the inflammatory, or those depending upon organic change within the head, — that it has been disapproved of by Riciiter and Schmucker. 79. The chief ccmp/jfa(/i))(s of functional amau- rosis require no very difieient trealmeni to that which has been described. The not infrequent association of the disease with ivorvis demands the use of anthelmintics, followed by purgatives, and the administration of vermifuge enemata, 6cc. (see Art. Worms), and afteiwards by vegetable or mineral tonics. But, in the majority of cases of even functional amaurosis, the use of the pre- parations of iron requires caution. AV'hen the disease is occasioned by lead, or accompanied with the lead colic, or attended by paralysis of any other parts of the body, the e.xhibition of calomel, with camphor and small doses of opium, followed by purgatives and antispasmodic and aperient enemata, is extremely serviceable. After the secretions and functions of the abdominal viscera ; are restored by these means, stnichnine, or the 60 AMAUROSIS — Treatment. extract of nux vomica, may be prescribed both internally and topically. (Form. 542. 565.) The connection of the disease witli hysteria, hypo- chondriasis, obstructions of any of the abdominal secretions, chiefly requires the combination of antispasmodics with aperients ; chlorine, iodine, or sulphureous baths ; the occasional exhibition of a brisk purgative; and, afterwards, the warm salt-water bath, tonics with stimulants, and strict attention to the secretions and functions of the digestive organs, and to diet, air, and exercise. After all obstruction is removed, cold bathing, or chalybeate or salt-water baths, followed by fric- tions of the cutaneous surface, may be used. 80. B. Of the second species. — When amau- rosis is attended with tliose symptoms which 1 have described as marking active congestion of tiie internal parts of the eye, or of the head or thoracic viscera (§ 41.), a very different treat- ment to that enjoined above is requi.-ite. In the first species of amaurosis, blood-letting is generally prejudicial — it has even caused the disease; but, in the congestive species, blood-letting, either ge- neral or local, or both, according to the circum- stances of the case, is indispensable. In every form of the disease the means of cure must be regulated by the apparent vascularity of the eye, the plethoric state of the countenance and body, and by the state of the arterial pulse, examined, not only at the wrists, but also in the carotids and temples. After depletion, to an extent which the well- informed practitioner will be led to adopt accord- ing to the particular characters of the case, the promotion of the alvine discharges, and of the cutaneous and alvine secretions, will next require his attention, as salutary modes of derivation and evacuation ; and afterwards the application of blisters, setons, issues, and other counter-irritants, behind the ears, or to the nape of the neck, will generally be necessary to complete, or to render permanent, the cure. The ointment of tiie potas- sio-tartrate of antimony, moxas, the mezereon issue, tiie actual cautery to the nape of the neck, or to the occiput, and errhines, have severally been recommended by eminent continental writers in this state of the disease. 81. 'Ihe slioxcei-ballt, sponging the head with cold water night and morning, the cold douche, or the effusion of a stream of cold water on the head, are means which ought not to be neglected in those cases in which the congestion is of an active character, or approaches to tiie inflamma- tory state. When this form of the disease is con- secutive of interrupted or suppressed discharges or evacuations, the restoration of these must be attem])ied. If the menses be so ])pressed, leeches to the pudenda, or the insides of the t()[)s of the thighs ; or bleeding from the feet ; the prepar- ations of iodine, aloetic purgatives, and otiier emmenagogues ; stimulating pediluvia, and the hip-hulh, with the other means usually resorted to in cases of amenorrlia'.a, are to be employed. Jf it proceeil from suppressed haiinorrlioids, leeches may be applied to the vicinity of the anus, and purgatives, with calomel, colocynth, and aloes, prescriljed. If it siijiervene on the disappearance of gout or rlieuniatism, sinapisms and iriitating cataplasms may be directed to the extremities, and free alvine evacuations procured ; after which colchicum, combined with alkalies or magnesia, and, in some cases, with ammonia or camphor, may be exhibited, or aconitum combined with an- timonials, and purified sulphur ; and rubefacients applied behind the ears, or to the temples. When it appears after the suppression of eruptions, and healing of old ulcers, the use of the tartar emetic ointment, setons, and perpetual blisters behind the ears, are particularly indicated. If it follows a suppressed cold, Weller recommends weak sternutatories, with calomel or hellebore. 82. Mr. Travers has very justly remarked, that a loss of balance of the circulation, pro- ducing undue determination of blood to the head, often exists independently of general plethora, and is aggravated by sanguineous depletion. It is sometimes even met with in corpulent persons ; and is not infrequent after over-excitement and chronic inflammation. Instead of requiring loss of blood for its removal, this state of the disease demands an equalisation of the circulation, by promoting the various secretions, and the deriv- ation of the excessive supply to other parts by the means now stated, assisted by an abstemious and regular diet, gentle exercise in the open air, the promotion of the functions of the liver and bowels, and the means usually employed to be- nefit the general health. Even in some of these cases, the local means noticed above, as the va- pours of ammonia, &c. (§ 73.), may be service- able in restoring the tone of the vessels of the eyes. 83. C. Of the third species. — Inflammation of the internal parts of the eye, particularly of the retina, requires decision, in the more intense cases, and a vigorous but judicious application of the usual antiphlogistic remedies. In the slighter cases, the exact nature of the disease may be mistaken for either of the foregoing species. Slight or slow inflammatory action may exist without any material afl^ection of the pulse, or pain of the organ ; but the appearance of the blood-vessels of the sclerotic, and the state of the iris, will olten indicate its presence when other signs are wanting. When the attack is acute, both general and local depletions are required. In these cases Plenck has advised the perform- ance of arteriotomy ; Si'iGELius and Hoffmann of blood-letting from the frontal vein ; and Sau- VACEs from the jugulars. But vascuhir depletion is not to be relied upon alone. Active evacu- ations from the bowels, determination to the skin by small and repeated doses of antimonials, and the use of the tartar emetic blister or plaster be- hind the eais, or to the nape of the neck, are to be also ado|)ted. 84. If these means fail of producing a very decided improvement in a very short time, we must endeavour to aflfect the mouth slightly with mercury, without pioducing salivation. In order that this may be done with lajjidity, and with as little mercury as possible, the preparations of this mineral to be employed will be advantageously combined with .James's jiowder, or com[)oiind pow- der of antimony, and small doses of camphor. The treatment is, in such cases, similar to that usually resorted to in iritis. Much of the advantages to be procured from the use of mercury in this form of amaurosis, as well as in iritis, depends upon the pronqititude with which it is employed, [n this TuAVF.KS, I-AWRENCK, Macken/.ik, and others agree. Indeed, the use of calomel, and other preparations of mercury, either alone, or com- AMAUROSIS bined with other substances, has been adopted in the inHammatory states of amaurosis, from the time of Heistek and Boerhaave, Bang, Hud- EMANN, SCHMUCKER, ZUICKEU, and BrEITING, agree in recommending tiiem. Boettcher ad- Vises the combination of calomel wilh belladonna ; and Hey, calomel with camphor; both being judicious modes of combining this medicine. iMead, Stahl, Hoffmann, and Isenflamm, ad- vise the production of salivation ; but I agree with Travers in considering the affection of the mouth as sufficient. The use of mercury is much praised by Beer in such cases, as well as in tho-e of a syphilitic origin, or which are complicated with engorgement of any of the abdominal vis- cera. Care should be had not to employ mercury in debilitated or scorbutic persons, and when tiie eye is soft or boggy. iNIany of the continental writers, and Mr. Ware, prefer the bichloride to other preparations. It is best exhibited, as recom- mended by Van Swieten, dissolved in brandy, and taken in a basin of sago or gruel. It may be continued for six weeks, or even longer. 85. The success whicii has resulted from the exhibition of the oleum terehiiithinie in iritis in- duced me to prescribe it, after depLtions, in two cases of this form of amaurosis , and with satis- factory results in both. In persons far advanced in life, in scrofulous subjects, and in debilitated persons, this oil is certainly a less hazardous me- dicine than the mercury exhibited so as to affect the system. 86. In the slighter or more chronic inflamma- tory forms of amaurosis, particularly when met with in the description of subjects just now al- luded to, much circumspection is necessary in the use of depletions : general blood-letting is here inadmissible, particularly when this class of pa- tients are ill-fed, and live in close and ill ven- tilated streets and apartments in large towns, and local depletions only are indicated. In cases of this description, and under these circumstances, the oleum terebinthina; will prove a valuable me- dicine ; and even, although we may deplete thus locally, the internal exhibition of tonics, with a nutritious diet, attention to the alvine secretions and evacuations, and a wholesome air, will prove the most beneficial remedies, 87. This form of amaurosis, as well as the preceding, will occasionally supervene fi'om sup- pressed evacuations and eruptions, and, more rarely, from misplaced gout and rheumatism. (§ 48.) In such cases, the treatment already re- commended, as appropriate to each of these ($ 81.) will be equally applicable here. 88. Besides the above means, it has been re- commended by BnoMFiELD, to insert an issue in the scalp ; by Hoffmann, to apply leeches to the insit will detect, either as their efficient causes, or as their related effects. 94. Throughout the treatment of this disease, the practitioner should keep the following facts iu recollection: — 1st, an appropriate, and hence successful, method of cure should have an inti- mate relation to both the remote and proximate causes of the disease, and the natural or morbid diathesis of the patient : 2d, It must be directed after a minute inspection of the eyes, and exa- mination into symptoms connected with the head and the digestive viscera : 3d, It must be modified according to the nature of its related, associated, and symptomatic disorders: and, 4th, That much of the success will often depend upon the strict regulation of the patient's digestive and organic functions ; upon diet and regimen ; and upon a regulated exercise both of the organ of sight and of the body, with a "pure and temperate air. Keeping these indications in recollection, the practitioner will modify and adapt the treatment to the presumed nature, seat, complication, and relations of the disease. Bibliography.— Cradok, Generalia circa Suffusionem, Guttam Serenam, et liiflam. &c. Leid. \C\)i. — Heistcr, Apologia et Ulier. Illiistratio Sjstematis sui de Catar., Glaucom., et Amaurosi. Alt. 1717, Vlmo. — CEheme, De Amaurosi. Leip. 174S, 4to. — Warner, Descript. of the Human Eye and its Diseases. Lond. Mhi. — Sproeael.'m Miscel. Ber(il.t.vi.p.64.— SaKWrtgM, Nosol.Metli.t.i.p.7l6. _rn«A-a, HistoriaAiinauroseos,Viiidob.l781.— PtoMci/Mc/, De Amaurosi. Tubing. 1789.— Schmiicker, Chirurgisclie Wahrnehmungen. Ber. 1774. _ et Vermische Cliirurg. ScVirif. 1786. — Richtcr, Aiifansgriinde der Wunderziieik. Goet. 1790. — Scarpa, Osservasioni sulle Malattie degll Occhi. Venet. 1802; 2d ed. \%W.— Flnjani, Collezione d'Osservazioni. Rom. 1803. — \Ven-x,el, Manuel de I'Ocu- liste, &e. Paris, 180G. — Kiesscr, Ueber die Natur, Ursa- chen, Kennzeichen, und HeiUmg des Schwarze Staars. Goet. 1811 Beer, Lehrevonden Augenknmkheiten, &c. Wien. 1817.— H'ardrop, On the Morbid Anatomy of the Human Eye, 2 vols. Hvo. Lond. IH\S.— Trnvers, Synopsis of the Diseases of the Eye, &c. Lond. 1820, 8vo. — Ste- venson, On the Nature, &c. of the different Species of Amaurosis, Lond. 1821.— Dcmours, I'recis Theorique et Pratique sur les Maladies des Yeux. Paris, 1821 — Wriler, Manual of the Diseases of the Human Eye ; by Mon- teath. Glasg. 1821, 2 vols. V,\n.—Haiier, Archives Gener. de Meiiecine, t. vi. Paris, 1823. — Marjulin, art. Amau- rose. Diet, de Med., t. ii. Paris, 1822. — i'nnsora, art. Amaurasc, in Diet, de Med. et Chirurg. Pratiques, t. ii. Paris, 1829 Lawrence, Lectures on Diseases of the Eye; Lancet, vol. x., \m'i. — Benedict, art. Amauro- sis, In Encyclopadisches Wiirterb. der Mediciiiischen Wissenschaften. b. ii. IJerl. 1828. _ Mackenzie, Practical Treatise on the Diseases of the Eye. Lond. 1830, 8vo. — It. Middleniore, On Diseases of the Eye. Lond. 183.'), Hvo. vol. ii. p. 2.')2. — (See also Bibliog. and liefer, to art. Evi'.) AMENORRIKEA. See MENsmuATioN. AiVlNlOS. See DnopsY OF THE Amnion. AM/l^MlA. See Blood, Dejiciency of. ANASARCA. See Dnopsv of the Cellular JMemhrane. ANEURISM. See Aorta, Aneurism of; and Arteries, Morbid Structures of. ANGINA. See Croup. Laryvx, hiflammaiions of. Pharynx, Iiiflammations of. Throat,' Injiammations of. ANGINA PECTORIS. Syn. Cardiogmus Cordis Sinistri, Sauvages. Augiiui Pectoris, Ileberden. Asthma Arthriticum, Schmidt. Dia- phragmatic Gout, Burton. Asthma Dolorifcum, Darwin. Syncope Aiiginosa, Parry. Angor Pectoris, J. Frank. Asthma Convulsiviim, Eisner, Pnigophobia, Swediaur. Sternodyiria Syncopalis, Sluis. Asthenia Pectoralis, Young. Stenocardia, Brera. Asthma Spastica- Arlhri- ticum, Steelier. Sternalgia, Baumes and Good. L'Aiigine de Pottrine, Fr. BrustbrUune, Herz- Memme, Brustklemme, Ger. Angina di Petto, Ital. Suffocative Breastpang, Eng. Classif. 2. C/ass, Diseases of the Respira- tory Function ; 2. Order, Affecting the Lungs, their Membranes, or Motive Power {Good). II. Class, I. Order (^Author, see Preface). 1. Defin. Acute constrictory pain at the lower part of the sternum, inclining to the left side, and entending to the arm, accompanied with great anxietii, difficulty of breathing, tendency to syncope, and feeling of approaching dissolution. 2. This affection was not recognised as a distinct disease by medical authors, until Dr. Heeerden described it as such in the Medical Transactions of the London College of Physicians (vols. ii. and iii.) ; but the works of Morgagni and Hoffmann show that they were not unacquainted with it in practice. It was also noticed by Poter {Opera, No. 22. p. 302.), under the head " Respirandi difficultas quffi per intervalla deambulantibus in- cidit;" and he remarks respecting it, that the attacks were sometimes so severe that persons had been suddenly carried off by them. Obscure no- tices of affections, which probably were of this nature in some instances, may also be detected in authors from Hippocrates downward.s. From amongst these, the reader may refer to Aret^.us (Opera, p. 7. Oxon. 1723), Cojlius Aurei.ianus (lib. ii. c. i. p. 348.), Barteletti, {Methodus in Dijspnaam, Bon. 1632), and others, adduced by Zechinei.li {Sulla Angina di Petto, Pad. 1813), who supposes that the case of Seneca {Opera, t. ii. p. 136.), which he has himself described by the term suspirium, was actually this malady. Dr. Cullen has passed Angina Pectoris over in his work ; but it has been well described by Drs. Fotiiergill,\Vali,, Duncan, Butter, Pehcival, Darwin, Macbride, Hamilton, 1\1ac«ueen, Johnstone, Haygartii, Parry, Niciioll, and Good, in this country ; and by Jurine, Brera, Lentin, Despohtes, Kreysig, Riiter, Zeciii- NELLi, and Stoelleu, on the Continent, and by Dr. Chapman, in America. 3. Pathology. — I. Symptoms. — An attack of this disease is often preceded by considerable de- rangement of the digestive organs, especially by flatulence, acid or acrid eructations, or other symptoms of indigestion, with torpid bowels, pains in the limbs, and occasional spasms about the chest ; but it fre(]uently also attacks a patient, par- ticularly when walking or ascending an eminence, without any, or with but slight premonition. ANGINA PECTORIS — Causes. 63 4. A. In its acute form the patient is seized with a sense of painful constriction of tlie chest, par- ticularly at tlie cardiac region, about the lower part of the sternum, inclining to tlie left and ex- tending to the left, occasionally also to the right, arm — at first no further than the insertion of the deltoid muscle ; but the pain often successively reaches to the elbows, wrists, and sometimes even to the fingers. Tiiis is the mildest form of the disease, and soon subsides with the disappearance of its exciting cause. 5. In the more violent form of the attack, the pain and sense of constriction in the chest, and pain in the left arm, which also frequently extends to the right, amount to excruciating agony ; being likened, by Laennec, to the piercing of nails or the laceration by the claws of animals. This feeling is accompanied by a sense of syncope or suftociition, sometimes vvith suffocative orthopnoea, consulsive dsspncea, and palpitations; always with extreme anxiety, and a sense of approaching dissolution. The suffocative sensation is charac- terised by concomitant tightness and fulness of the chest, and flatulent distension of the stomach, and irritative feeling in this organ, which is re- lieved by eructations. During this period the pulse is variously affected, sometimes little ciianged, at other times extremely weak, iiTeguiar, indis- tinct, or intermittent ; and occasionally it is full, active, and bounding. If the attack has been induced by walking or exercise, the patient sud- denly stands still, from a feeling that perseverance in either would pioduce a total suspension of living power. In the slighter attacks, or early in the disease, rest merely will often immediately remove it ; but this is seldom the case in the pro- tracted and severe forms in which it frequently occurs. 6. The paroxysm continues from a few minutes to one or more hours, according to the severity and the duration of the disease. When the mal- ady has assumed a chronic form, and its attacks occur during the night, or when the patient is at rest, the paroxysm is less violent, but generally of much longer duration; whereas, when it is in- duced by exertion, &c., it is of extreme violence, but of short continuance; the average duration of the fit may be about half an hour. Upon its cessation the patient merely retains a slight feeling of the various symptoms, with numbness of the arms, particularly the left. When the disease is of short standing, the paroxysms occur at long intervals, which are gradually shortened, until there is but little exemption from them, and the afTection assumes a less acute character. 7. B. The chronic form of the disease is charac- terised by the circumstance of its being frequently a consequence of the acute ; by the occurrence of the fit from the slightest causes, and alter short or imperfect intervals of exemption ; by its recur- rence when the patient is at rest or asleep ; and by its much longer duration, but less extreme violence. Even if this form be induced by exer- cise, rest has little influence in shortening its duration, as in the precetling ; and the paroxysm has been protracted, not only for some hours, but even for several days. Palpitation of the heart, irregular and intermitting pulse, are more fre- quently concomitants of this state of the disease than o( the other. In the case of a very eminent and learned member of the profession, whom I long attended in this form of the disease, the attack has often continued as now described, with little remission, for several weeks. Sometimes the irregularity of the pulse is observed only during the paroxysm; but in some cases it is continued, as Dr. FoTiiEHGiLL has correctly remarked, during the intervals, particularly when they are marked by imperfect relief. 8. 'i his form of the disease may also occur primarily. It has twice presented itself to main this manner. During the severity of the attack, leipotliymia, a feeling of dissolution from the in- tense agony, and these followed by palpitations, and an irregular stale of the pulse, generally occur. In some cases the agonizing pain extends, not only to the arm or arms, but ascends also up the throat and lower jaw, accompanied with a severe sensation of spastic constriction. In the majority of cases the above sensations are only piesent when excited by motion, by assuming suddenly the erect posture, or even by attempting to read ; a neuralgic kind of pain generally, however, being felt under the sternum, and extending to the arms: but in some cases, and in two which occurred to me, the exacerbations were often referable to no very evident cause, they sometimes occurring during the night, although the above causes generally induced them. 9. Notwithstanding the remarkable distress characteiising the paroxysm, this disease, par- ticularly in its acute state, sometimes does not early affect the constitution, or entail any per- manent lesion ; the patient often enjoying toler- able health in the intermissions, and performing all his functions naturally, and without embar- rassment, until shortly before an attack. After its protracted continuance, however, the vital energies of the frame, particularly as they are manifested^in the digestive and circulating organs, give way. Marked disorder of the chylopoietic viscera, attended with various dyspeptic symptoms, occasionally with great in ital>ility of the stomach and bowels, impeded respiration, anxious and pale countenance, flabby state of the integuments and muscles, marked derangement of the circu- lation, oedema, dropsy, &c., at last supervene. But it more generally happens that the patient is carried suddenly off by a paroxysm before this state of the system is occasioned ; or he sinks under the complicated derangement proceeding from an attack, and from some one of the orwaniij changes which the continuance and repeated fits of the disease had iiiduceil. 10. II. Causes. — I. Predisposing. — This disease usually attacks the middle aged, and those beyond it ; and men much more frequently than women. Of nearly one hundred cases, about seventy were upwards of fifty years of age ; and seventy-nine out of the number were males ; nearly one half terminated fatally, and almost the whole of them suddenly. It has been said also to occur more commonly in robust and corpulent persons with short necks. But Jurine and Chapman dispute this. JNIy own experience agrees with theirs in respect of its being equally common in persons of a spare as of a full habit. It is most prevalent in those of gouty and rheumatic diathesis, and w!io lead an indolent, or studious and sedentaiy life, or who have been subjected to much and continued anxiety and distress of mind, or in- dulged in much^ food, and spirituous or ether 64 ANGINA PECTORIS — Diagnosis — Prognosis. liquors, Jurine and Parh state that they have scarcely met with it under fifty years of age. The most violeut and distinctly marked case of it which ever came before me occurred in a gentle- man at the age of thirty-four. During 1821, I attended an unmarried lady, aged twenty-six, who laboured under it in a slighter form ; and re- cently, in 1830, another single female, at the age of twenty-five, came under my care, with tlie dis- ease in its most violent grade. In both these females it seemed perfectly unconnected with uterine disturbance, menstruation being regular, and no tendency to hysteria having at any time evinced itself, or could be detected, my attention having been directed to this point. They both ultimately recovered, after a long treatment, and the employment of very decided measures. Nearly all the cases which have come under my observ- ation were more or less referable to mental causes, particularly to disappointment, anxiety, and other depressing passions. Dr. Hamilton conceives that there is an hereditary disposition to the affection. If we consider it to be of gouty origin, as contended for by Butter, Macqueen, RiTTER, Stoeller, Thilenu's, Elsnir, and Chapman, an hereditary disposition may be also conceded. But, although very satisfactory proofs have been adduced by these authors, and par- ticularly by Dr. Chapman, in an able paper he has recentlv published on this disease (American Journ. of Med. Sciences, No. xiii. p. 67. ). yet it does not seem always to depend upon gout. Of the four cases which occurred to Dr. Black, of Newry, one only was subject to gout (Med. Chir. Trans, vol. vii.). 11. 2d, The disease is usually excited by walk- ing, especially walking against the wind, or up hill ; by ascending a fiiglit of stairs, or any ac- clivity, particularly when the stomach is full or distended by flatus. It is also readily induced by either the exciting or the depressing passions, and by whatever perturbates the mind or occasions emotion. It may also be induced by the most trifling causes, in some susceptible and irritable habits, as by gentle walking, coughing, speaking, or reading aloud ; by suddenly assuming the erect posture ; by strainingat stool ; or even by a meal, however moderate, &c. It may also occur in a state of absolute repose, particularly when the disease has become chronic ; and the patient may be roused from sleep by an attack. 12. 1 have seen it occasioned by rapid changes of temperature, particularly by a rapid change to great cold ; but different persons seem differently affected by extreme states of atmospheric teinpe- .rature. In some sljolit cases the fit has been shortened, by the patient struggling to overcome it, by frequently attempting to make a full in- spiration ; but this has also failed. The patient is incapable of making this attempt in the more severe paroxysms. 13. 111. Diagnosis. — Angina pectoris is more liable to be confounded with asthma tlian witii any other disease. But a close attention to the phenomena attending upon both iifl'ections, will readily disclose a very great difference between tlum. 'I'lie paroxysms of asthma always come on during the night, or at the close of llie day : they are characterised by a heavy dyspna'u, wheezing, and cough, are relieved by expecto- rrition and exposuieto fresh air, and subside gra- j dually towards morning. They are not excited in the same way, nor by similar causes, nor marked by the acute and peculiar pain in the sternum and left arm, which is distinctive of angina pectoris. The stethoscope and percussion furnish us with no signs peculiar to the disease under consideration, unless it be complicated, as is sometimes the case, with organic lesion of the heart and lungs, or with effusion of fluid within the cavity of the pleura or pericardium, wiien they materially assist us in ascertaining the nature of the complication ; and they also serve, by enabling us to ascertain other affections of the heart, to dis- tinguish between it and them. 14. IV. Prognosis. — In recent cases, of no very violent character, recovery will frequently take place under judicious management. But wlien the disease has become inveterate from neglect, or from being associated with, or from having given rise to, organic lesion, and when it has appeared in a decayed constitution, or has been preceded by other diseases of the heart or lungs, an un- favourable result should be apprehended sooner or later to take place ; but the period of its oc- currence is uncertain ; and the event is generally sudden — sometimes like an electric shock ; the movements of the heart being instantly arrested. This issue is often occasioned by a full meal, or by exercise or mental emotions ; but it also occurs in old or chronic cases, when the patient is at rest, and apparently uninfluenced by any circum- stance or occurrence. When it is followed by symptoms of effusion of fluid within the thorax, or oedema of the extremities, a fatal termination is seldom far distant. 15. V. Proximate Cause, &c. — Notwithstand- ing the number of examinations which have been made after death from this disease, but little light has been thrown upon it. This is not so much owing to the absence of morbid appearances as to the extreme diversity of those which have been observed. Like epilepsy or dyspnoea, it has presented almost every lesion to which the organs which it affects are liable. Many of these may be viewed as accidental concomitants, or as con- current causes ; and not infrequently as results of the repeated functional disturbance occurring durinw repeated attacks. In several instances, not the slightest morbid appearance could he detected : but more frequently the heart and the large vessels in its vicinity have presented marks of disease, ge- nerally varied in its natuie, and opposite as to its characters. The most common of these are ossi- fication of the coronary arteries ; ossification of the valves of the heart or of tiie arterial trunks; enlargement of some of the caviiies of the heart, either with diminished or increased tiiickness of their parietes, but most fiecpiently with fatty de- generation, or soltening, paleness, ami tenuity of the muscular structure of the organ ; varicose dila- tation of the coronary veins (Brera) ; depositions of adipose matter, to the extent of impeding its functions; effusions of serum, blood, tivc. into the pericardium or cavity of the pleura, &c. (Fother- (jii.L, Black, &c.) It has justly been remarked, by Dr. UwiNS, " that there is scarcely any malform- ation of the heart or its blood-vessels, that has not been occasionally found after death, from what would be considered angina pectoris : while, on the other hand, individuals have fallen victims to the affection, fully niaiked, and the most accu- ANGINA PECTORIS — nite post morlem examination has not been able to detect the slightest indication of structural de- rangement."—(Cn/H/ie/irf. of Theoret. and Pracl. ]\Ied.) — In some cases the only morbid appear- ances observed have been in other, and distant organs, from that which seems to be, if not the chief seat of the disease, at least the organ chiefly affected in its functions by it — the heart and large vessels having been altogether exempt from lesion. These appearances were adhesions of the serous surface of the lungs to adjoining parts ; serous effusions into the pleura ; thickening of the respiratory mucous surface ; dilatation of the bronchi ; cedema of tiie intervesicular cellular tissue of the lungs; abscess and tumours in the mediastinum ; ossification of the cartilages of the ribs (Wichmann, Jahn) ; tubercles, en- largement, scirrhosity, iSic. of the liver (Percival, Latham, Brera, and Walker) ; scirrhus of the pylorus, &c. 16. These lesions serve less to throw light on the precise nature of the disease than an attentive examination of the morbid phenomena during the lifeof tlie patient, and a calm appreciation of their relations, particularly with respect to the agents tending to diminish, remove, or to exasperate them. This aflfection has been considered by many autliors as spasmodic, "although the part immediately concerned seems not to have been designated or understood." Dr. Chapman re- marks, that this hypothesis is rendered probable, by the general complexion of the disease — its causes, symptoms, and cure — and by its analogy to other disorders confessedly of this character. 17. Dr. FoTiiERCiLL supposed it to be occa- sioned by obesity, and particularly by a collection of fat about the heart ; lie also considered that it was sometimes sjmpt'omatic of water in the peri- cardium or cavity of tlie thorax. Parry, Jenner, Burns, Krevsig, Bostock, and some others, have viewed this aflfection as a species of syncope oc- casioned by the accumulation of blood in the heart, from an ossification of the coronary arteries. Drs. HosACK and Forbes conceive that it most frequently arises from a plethoric state of the blood vessels, more especially from a dispropor- tionate accumulation of blood in the heart and large vessels. To the first and second of these opinions it may be objected, that there is no ob- vious connection between the effect and the cause ; for, as the cause is permanent, the eflPect should be continued, or at least present but little abateirent, whereas the intermissions be- tween the paroxysms are often characterised by a )-eturn of the healthy functions. It may be further stated, in opposition to this hypothesis, that many fatal cases have occurred in which this par- ticular lesion was not found on dissection. La- ENNEc stales that he has examined several sub- jects who had laboured under this diseasCj and in none of them did he find the coronary arteries ossified. Besides, cases are recorded by ]\Ior- oAGNi, Senac, Watson, Corvisart, Andual, and others, in w+iich ossification of these vessels were not productive, during life, of the sufferings characterising this disease. Indeed the coronary arteries were often found ossified in old persons, who had not complained during life of any aflfection of the heart, and who certainly never were attacked by this malady. As to the last of the above opinions, viz. that adopted by Dr. Vol. I. Patholog7Cal Relations. Q5 IIosACK, Dr. Chapman has very justly observed, "that even allowing the fulness and irregularity of the circulation contended for, which 1 am by no means disposed to do, as uniform-concomitants, these I should take to be rather the eflfects of pre- vious irritation or excitement, than the cause of the disease. Do we not abo know, that such a condition of the vessels can exist without inducing angina pectoris? Were fulness and irregularity in the circulation only required for the production of the disease, instead of a rare, would we not have it as a daily occurrence 1 Tiie fact, more- over, is, that angina pectoris, though oftener, per- haps, attacking the plethoric, is to be met with, as I have before said, in the feeble and attenuated." I may add to this, that the severest case of the disease which has ever occurred to me was that of a gentleman who had suffered severely from re- peated and profuse haemoptysis, and other sym- ptoms of disease of the lungs. All these disap- peared, but were followed, after some time, by angina pectoris. He was feeble and attenuated ; but it was considered advisable to try the eft'ect of blood-letiing to a moderate extent: this gave no relief; it was repeated, but the symptoms were evidently aggravated by the measure. 18. Dr. J urine considers the disease as a ner- vous affection ; and he supports this opinion by refeiring to the sudden and unexpected manner of its attack — to its sudden termination in death, or restoration to health- — the nature of the ex- citing causes of the paroxysm — the equality and regularity of the pulse, in the majority of cases, during the paroxysm — to the state of the respi- ration— to the painful sensation extending to the upper extremities — and lastly, to the circumstance of antispasmodics being beneficial in its treatment. The proximate cause, he adds, consists of an affection of the pulmonary nerves, disturbing the functions of the lungs, impairing the decarboni- sation of the blood, and producing the pain in the sternum. This afl'ection of the pulmonary nerves is communicated to' the cardiac plexus, and de- ranges, secondarily, the heart and large vessels. The imperfect decaibonisation of the blood di- minishes its stimulating influence on the heart and lungs, giving rise to repeated attacks, until it occasions the death of those organs, and then of the brain. 19. IMM. Desportes and Laennec have adopted a nearly similar view of the disease, with this difference, that they consider its particular seat may vary according to circumstances. Thus, JM. Laennec states, that when there exists, simul- taneously, pain in the heart and lungs, we may presume that the affection is seated chiefly in the pneumo-gastric nerves ; but where there is simply stricture of the heart, without pulmonary pain or difficulty of breathing, its site is in the nerves which the heart receives from the great sympa- thetic. But he supposes that other nerves may also be implicated at the same time, either by direct anastomosis or by sympathy ; and that the branches of the bronchial plexus, particularly the cubital, are nearly always so affected. " The anterior thoracic originating in the superficial cervical plexus are, moreover, frequently impli- cated ; and this is sometimes further the case with the branches derived from the lumbar and sacral plexuses, when the thigh and leg participate in the attack, which occasionally happens." F 66 ANGINA PECTORIS — Treatment. 20. BuEUA, Zechinelli, Aveuardt, and some others consider the disease to be occasioned by pressure of enlarged abdominal viscera on the heart, particularly of enlarged liver. Joseph Frank conceives it to proceed from congestion of the cavities of the heart, occasioned by defec- tive nourishment of its muscular structure ; this defective nutrition itself resulting from previous inflammation, or from metastasis of gout or rheu- matism, or from disease of the coronary arteries. {Friix. Med. Univ. Fr;t, the depletion may be carried to a consider- able extent, or repeated, accoiding to the relief obtained. The object here is to reduce the body to be moved to a nearer relation to the state of the moving power, at the same time that we endeavour to increase the energy of the latter. 27. I should add, that the propriety of bleeding, in the paroxysm particularly, has been much disputed, and especially by continental authors. Where the pulse is feeble and soft, and the action of the heart weak, it is generally inadmissible; but, wherever we entertain doubts respecting it, the external and internal use of stimulants and antispasmodics, with frictions, should be cautiously premised, and only local depletions adopted ; or depletion of every kind should be entirely omitted until after the paroxysm, when either general or local blood-letting, according to the particular circumstances of the case, may be practised with necessary precautions. I have employed mode- rate blood-letting in three cases, in which the pro- priety of the measure seemed questionable, the patients being of spare habits of body, and weak- ened states of system ; but every precaution was taken to prevent immediate ill effects from the operation. In one of the three relief was afforded ; in another, the advantage was very doubtful ; and, in the third, the disease was evidently exas- perated by it, although slight benefit seemed to result from it at the time. In one of those cases the serum of the blood had a milky appearance, from the presence of an oily matter, resulting from imperfect assimilation. From this evidence, there- fore, I infer that, where there are no signs of vascular plethora or cardiac congestion, or where the vital energies of the patient are depressed, and we presume the substance of the heart is attenu- ated and imperfectly nourished, we should be ex- tremely circumspect in having recourse to vascular depletions of any description, and should particu- larly avoid bleeding from a vein ; but, at the same time, we should be equally careful not to ad- minister too active stimulants. 28. Next to the employment of depletion, un- der the above restrictions, in suitable cases, and with the concomitant means recommended, the bowels may be opened by a purgative 'medicine, combined with some warm antispasmodic and car- minative, as ether, spiritus ammonia; aromaticus, camphor, musk, castor, spiritus anisi, capsicum, &c. ; and these may be given at intervals subse- quently. I have seen much relief afforded by full doses of camphor with opium, or with hydiocyanic acid. In the slighter attacks, and where the stale of the vascular system and constitutional energies render it prudent to withhold depletion, friction with stimulating liniments over the thorax and epigastrium, as the following- No. 14. R Liiiimenti CamphorEe Comp., Linim. Am- monise, aa 3j.; Tinct. Capsici 3iij. M., — the internal administration of antispasmodics, and the exhibition of a purgative medicine, will be sufficient to give some immediate relief. The following will generally fulfil the intention: — No. \h. ^. Infiisi Valerianse 3xj. ; Spirit. AmmonifE Foetid. 3 ss.; Tinct. Castorei 3 ss.j Acidi Hydrocyauici, lllii. M. Fiat Haustus his tcrve ill die capieiiilus. No. 16. R Iiil'usi Senna; Comp. Jjss.; Tinct. .Sennse Comp. 3ij.; Spirit. Ammon. Arom. 3jss.; Tinct. Carda- mom. Comp. 3j. M. Fiat Haustus statim sumendus, et repet. si sit oecasio. No. 17. R Mist. Camphors Sj.; Liq. Ammon. Acet. 3 ij.; Spirit. iEtlier. Siilpli. Comp. 5j. ; Tinct. Camphorje Comp. 3j.; Syrup. Papaveris 3j. iVI. 29. Emetics have been spoken favourably of by Ur. Good {Study of Med., t. i. p. 667.). In a case of great severity, in which vomiting occa- sionally occurred when the paroxysm was excited by taking food into the stomach, I was induced by this symptom to try the effect of an emetic during an attack ; but no benefit was derived from it. 30. The employment of derivatives to the ex- tremities, particularly the lower, is generally beneficial, and ought not to be omiited in the paroxysm, whether we adopt the opinion as to the gouty origin of the disease or not. Stimulating pediluvia, and sinapis7ns or blisters, with all the other measures employed under similar circum- stances in irregular or misplaeed gout, had the effect, in the six cases of the disease published by Dr. Chapiuan, of inducing the regular gouty paroxysm, and of affording speedy relief. The affusion of cold ivater has been recommended by some authors, but it is a dangerous remedy in this disease. Cold epithems to the head have been nicntioned by J.Frank (Prax. Med. Univers., part ii. p. 273.), as having been used with advan- tage ; they seem less objectionable. A similar re- mark may be applied to the tepid affusion on the head. 31. 2d, The means which may be employed dur- ing the intervals or remissions between the parox- ysms are either general or topical. With respect to the Jirst of these, a most studious attention to avoid the exciting causes of the disease must be inculcated. Next to this, all existing disorder of the digestive organs should be attended to and removed ; and the diet and regimen of the patient strictly laid down and enforced. As the powers of the digestive organs are generally diminished, and the bowels either costive or irregular, vege- table bitters, with an occasional alterative aperient, either given alone, or in combination with an anti- spasmodic or anodyne, will often prove beneficial. With the view of thus strengthening the digestive organs, and removing spasm, Sch.effer {Volks- krankheiten, Jun. 1807) recommended vegetable bitters with opium, musk, camphor, or assafcetida, and Er.sNER prescribedthe/n/ied doses, until it occasioned an eruption, resembling nettle-ra^h, on the skin, — an effect noticed by this physician. The relief affordeil by it, after this eruption began to appear, was decided. The patient is at the present time in the enjoy- ment of tolerable health. At the period of my prescribing this substance, I conceived that its ex- liibition in this disease had originated with myself ; but I subsequently found that it had been given in two cases of angina pectoris, with advantage, so long ago as thirty year-s, by Dr. Cappe (Dun- can s Annals of Med., vol. iii.). 34. Arsenic, in the form of Fowler's solution, had been recommemled in this disease by Or. Alexander (Med. Comment., vol. xv. p. 373.), at a period antecedent to the introduction of the nitrate of silver into prac^ce as an internal me- dicine ; and subsequently by Sir G. Hi.ane, who gave it with advantage, combined with digitalis and mercury (Med. Chtr. Trans., vol. iv. p. 136.). 35. Besides these, preparations of hark and other vegetable tonics have been recommended, either alone, or in combination with antispasmodics and anodynes. The hydrosnlphuret of ammonia, in gnidually increased doses (from eight drops to thirty) twice or thrice daily, 'i'lie different prepa- rations of valerian, the ammonio-sulphate of copper and snlphaie of quinine, have likewise been em- ))loyed, and occasionally with decided advantage : from the last of these, combined with an anodyne, jiarticularly with opium and camphor, I have oltserved much benefit to be derived. The follow- ing formulae may be employed. No. 18. R Inl'usi Kosae Co. .3 xj. ; Qiiininae Siilph. jir. J— ij. ; Acidi Sulpli. Arom. Itlx.; Spirit. jEtlier. .Sulph. Comi). 3j.; Tinct. Opii 111, xij. M. Fiat Hau,tus l)is in die capipndus. Or, No. 19. R Kxtracti Aiittiemid. 3ij.; Quinina; Sulph. cr. xij.; Massac I'iltil. G;ilt)an. Comp. 3j. ; Camphora; Sutjacta', gr. xv., I'ulf. Cajisici, 3j.; Syrup. I'apaveriB, q. s. Misce bend et divide in Pilulas xxiv., quarum capiat uiiam ad biuas vel ires bis terve quotidie. Having derived much advantage from the inter- nal use of the bi-borale of soda in dyspeptic irri- tability of the alimentary canal, 1 was induced to einploy it in a case of this disease which occurred to me a few years since, in doses of ten to twenty grains, given in the decoctum althaeae. It pro- duced some relief; but the case was of the greatest severity, and little benefit, at least of a permanent description, was derived from any means which were adopted, excepting from prus- sic acid. 36. Mercurials have received the sanction of Brera. I have employed them in three cases, at first as an alterative ; five grains of blue pill hav- ing been directed occasionally at bed-time, and subsequently so as to affect the mouth. In one of these the alterative do'-^e had a beneficial effect upon the state of the stomach and bowels ; but this was of short duration. When, however, pushed further, so as to affect the gums, great irritability of the system, fever, restlessness, and increased pain, anxiety, and sinking, were occa- sioned by it. In the other case, evidently con- nected with hepatic disorder, the blue pill was also at first given as an alterative on alternate nights. It affected the gums after a few doses, and afforded relief. It was now pushed with the intention of inducing salivation; and a somewhat violent efftct was produced on the mouth, which was relieved upon exciting the salivary glands. Decided advantage was now procured ; the bowels were kept open by means of a stomachic aperient, an issue inserted in one of the thighs, and change of air recommended. This patient perfectly recovered. 37. Where plethora exists, blood-letting in the intervals will be serviceable, with a light abste- mious diet. When the paroxysms are apt to oc- cur during the night, I have found an opiate given at bed-time, as recommended by Dr. He- BERDEN, of great service. In one ca^e of this de.scription I gave the acetate of morphine, in the dose of an eighth of a grain, but it occasioned such distressing feelings of sinking, and general depression of the powers of life, that stimulants were required ; yet the same patient had expe- rienced relief from opium combined with camphor. On one occasion I tried the effects of iodine in the form of the tincture ; but although its use was adopted with great caution, seven drops only hav- ing been given three times a day, it occasioned an increase of all the symptoms, apparently owing to its irritating effects on the digestive mucous sur- face, and the idiosyncray of the patient. I may here notice the practices recommended by Sciile- sisGv.ii. (II ujeland\ Journ., vol. i. p. 57.), con- sisting in the exhibition, every two hours, of the extract of the lactuca virosa, in doses of two grains, with half a grain of digitalis. What effect may we expect from the use ofcolchicum ? Where the disease seems to originate in gout, the colchi- cuin might be tried; but its use would require great circumspection. In my opinion, it should only be given in combination with stimulants, or antispasmodics and tonics, the tinctura colchici composita being the most promising preparation of it in such a case. 38. Although the patient labouring under this disease is generally incapable of any, excepting the most gentle, exercise ; yet this should be ANGINA PECTORIS — Theatmfnt. 69 taken under favourabfe circumstances ; and change of air, particularly to healthy, dry, and elevated situations, should not be overlooked. It will generally be observed, that persons labouring un- der the worst form of the disease, incapable even of walking or sitting upright for any time, will bear well, and even be benefited bv, rapiil travel- ling in a carriage. This was first evinced to me by the case of a gentleman of great scientific and literary attainments, residing for a time at Paris, where I was called to him in the summer of 1829. He was anxious to return to Englan- handlungiilierdieBrusthrauiie. Kcemgab.niS. —Scho'jffer, Dissertat. de Angina Pectoris. Getting, 17b7. — Butter, Treatise on the Disease commonly called.\ngina Pectoris, Loud. 1791 SfAm/rf^, Dissert. di> Angina Pectoris. Got'. 1793. — Varry, An Inquiry into the .Symptoms and Causes of the Syncope Anginosa. Lond. 1799 Hisse, De Angina Pectoris. Halle, 1800. — Darwin, Zoonomia, vol. iv. p. 42. \ HOO. — Stoeller, Journ. der Pract. Heilkiinde von HiiJJe- land, 17 b. 1x03 Ja/in. Ueber die Syncope Anginosa, Huleland's N. Journ. 1806 Bcaawfs, Traite Eleraen- taire de Nosologic. 1806 Despories, Traite de I'Angine de Poitrine. \%\\.—BlaLkal, Observations on the Nature and Cure of Dropsies, &c. Lond. 1813. — Kreysig, Die Krankheiten des Herzens, Svo, Berl. — Zechineili, Sulla Angit>a di Petto. Pad. 1813.— JaWn?, Memoire sur I'.'^n-. gitie de Poitrine, couronnepar la Societede Medecineda F 3 70 AORTA — Nfrvous Pulsation of. Paris. 1815.— Zaennfc, Traite de rAuscuItatioii Mediate. Paris. 1826 Chapnian, American Journal of Medical Sciences, vol. vii. Phil. 1831 Jo//^, in Uictionnaire de Medfccine et Cliirurg. Pratiques, &c., torn. ii. Paris, 18'29. — J. Hupe. On Diseases ot the Heart. Lond. 8vo. 1832. p. 47-1. — Bouilland, Traite Clinique des Maladies du t'oeiir. Paris, 8vo. 1835. torn. ii. v. 491. ANIIMATION, SUSPENDED. See Asphyxy. ANTIPATHY. Syn. 'Ar'TiiraeTjs, Gr. Antipa(hia, Lat. Der Wideruille, die Aiitipalhie, Ger. Anti]mthie, Fr. Antipatia, Avversioiie, Ital. Aritipathia Sensilis, et A. InseusUis, Good. Ci.A.'siF. — 4. Class; 4. Order (Good). I. Class; IV. Order (Author). 1. Defin. Internal horror and distress on the perception of particular olyects, aith great restless- ness, <)»• with fainting. 2. This singular affection has merely been men- tioned by CuLLEN : it has, liowever, received more attention from Sauvages, Linn«us, Vogel, Ploi'cquet, Passament, and Good. The last named writer has needlessly divided it into two species — sensite and insensile antipathy ; the former arising from objects or subjects which strike some one of the senses ; the latter fiom the presence of an object, as soon as it comes within the sphere of some unknown influence, although unperceived by any of the senses. 3. There are numerous instances of singular antipathy on record ; and most persons of observ- ation have met with others in tiie course of their experience. The vulgar explain them generally by considering that the mother hud experienced a fright from the objects of antipathy during the early months of pregnancy — and there are, no no doubt, some facts which countenance the sup- position. Thus, .Tames the Fjrst could not endure the sight of a drawn sword — Rizio was killed at the feet of Queen JMary when pregnant with him ; and many other instances are mentioned by writers : but more frequently the persons themselves, who are thus affected, have experienced friglits during the early months of infancy, or have had their minds early and indelibly impressed by certain sub- jects. Peter tlie Gi'eat h^d a fall from a bridge into the water, when an infant ; and he could not afterwards endure to hear the rattling of a car- riage passing over a bridge. Persons often retain tiie antipathy to the sight of crabs, lobsters, &c. which had been occasioned by fright from them in infancy or childhood. A man-sprvant in the aulhoi's family, ailvanced in life, had so great an antipathy to the sight of a mouse, that he would fly as fast as he was able from the place where one was seen; and become quite frantic at the sight. lie stated that his mother, who likewise had an antipathy to mice, had been distressed by one thrown upon her when pregnant with him. Some jjer.'-ons cannot endure certain odours, from the faintness, or sickness, or sense of anxiety and dis- tress they occasion. This appears to proceed from yieculiar i(lios\ncrasy. 1 have likewise seen per- sons who could not touch certain smooth objects without feeling a peculiar sliu)5J«i, Diss. Antipathiae Sineulares, &c. Jen. 1G78.— S. Ruttray, Adilus Novus ad Occultse Sympathiset Antipathiae Causas. Glasg. 1658.— A'. Z)i/!iy, Theair. Sjmpathet.. p. 138 Rudolph, De Antipathia Humana. IJasil. 1700 Schurig, t'hylologia, pp. 9G. et 163. et seq Menfz, Disser. Antipathiae Phys. Phaenom. ad suas Causas Revocata. Lips. 1708. — Du l'oism,Y>e Antipathia Humana. BaMl. 1701. — Zwingcr, De Anti- pathia Humana, Fascic. Dissert. Select., n. 1. — Sc/iwmi- mer, De Antipathia. Jenae, 1669 Hermstadt, Wun- derbare Kriil'te der Natur durch die Symp. und Anti- pathic. Rotenb. 1776, 8vo. — Passament, Essai sur les Antipathies. Paris. 1811 M. Good, Study of Med. by Coopfr, vol. iii. p. 366. ANUS. See Rectum. AORTA. Syn. Arteria Magna. Aorte, Fr. Aorta, die grosse Schlugader, Hauptstamm aller Korperpulsadern, Ger. Its Disfases. 1. This most important vessel is liable toall the lesions which have been noticed under the article Arteries. Some of them, however, when seated in this artery, are so important, particularly as respects their effects upon adjoining viscera, and their extremely dangerous consequences generally, that I propose to give a succinct account of then) in this place. In doing this, 1 shall so far depart from the alpisabetical arrangement, in respect of the subordinate heads of the subject, as may be requisite to the consideration of it in strict patho- logical order. Functional disorder, therefore, of this vessel will he Jirst considered ; next, inflam- mation ; and, lastly, those lesions which usually result from inflammation, &c., as aneurism, con- striction, obliteration of the vessel, &c. 2. I. Nervous Pulsation of the Abdominal Aorta. — Classif. 11. Class; 1. Order. — This is not an infrequent affection in weak, ema- ciated, and tlelicatc persons, and frarliculaily hysterical females. It is often associated with collections of air in the colon or stomach ; and with accumulations of hecal matters or morbid secretions in the coecum. It is also not infre- quenllv conse(|uent upon neglected dyspepsia. 3. i." The Symptoms are generally very character- istic of the nalureof the com[)laint, and sufficiently serve to distmguish it from organic lesion of the vessel, 'i'hc niovbid pulsation is generally asso- ciated with nervous or hysterical symptoms, and is of a variable character. It is increased and diminished, sometimes without any evident cause. AORTA — Inflammation of but more frequentlj' by mental or moral affection and emotions, or by constitutional causes. Dis- orders of tlie stomach, and irregularity of the uterine functions, also sometimes occasion or re- produce it ; and 1 have observed it to follow upon the paroxysms of sinking or Ifcipothymia, to which very delicate females are occasionally liable. 4. Upon pressing the stethoscope firmly over the aorta, the pulsation will be generally fell limited in extent, in its transverse or lateral direc- tion, but it will be very perceptible in tiie course of the vessel from the bifurcation to the epigastiium. Instead of the gradual, steady, and stioug motion or impulse attending aneurism, there is fell a vi- gorous and smart jeik; and the sound is either merely a slight whizzing, or is scarcely to be heard. 5. ii. The Treatment of nervous pulsation of the aorta will entirely depend upon the peculiar cir- cumstances of the case in which it occurs. If the paroxysm is severe, the preparations of aether, as- safoelida, valerian, and ammonia, should be exhi- bited. I have seen much benefit afforded by strong coffee and green tea in these cases. The dependence of the affection on mental emotions indicates the propriety of advising a tranquil state of mind and a mild diet, with attention to the regular functions of the bowels. In cases evincing much irritability, mental or corporeal, hyoscyamus, conium, or the acetate or sulphate of morphine, in very small doses, particularly hyoscyamus combined with camphor, will be found useful. The preparations of morphine, however, should be cautiously admi- nistered in this affection. In a case which occurred to me sometime ago, the sixteenth part of a grain only of the acetate of morphine was followed by unpleasant depression. Upon the whole, more advantage will accrue from the antispasmodics than from the sedatives just named ; but in ca-^es characterised by attendant irritability, the com- bination of sub>tances belonging to both these classes of remedies will be of great service. 6. In all ca>es of this affection occurring in fe- males,— and the gieat majority of them do occur in this sex, — the state of the menstrual discharge should receive the utmost attention. When the more distressing state of the affection subsides, a more tonic regimen and plan of cure may be adopted. The bitter infusions and decoctions, par- ticularly those of caluiiiba, cinchona, cascarilla, and chamomile, with the alkaline preparations, &c., and subsequently the preparations of iron, the shower bath, cold salt water bailiing, clialy- beates, regular exercise in tiie open air, and ligiit nutritious diet, are the means chiefly to be de- pended on. W hen assncialed with other ailments, it is generally symptomatic of them, and tlieiefoie in such cases the treatment must be directed to the primary complaint. 7. II. Infi-ammation of the Aorta. — Svn. Aortitis. Aortite,Vr. Die Aortenen(z'uiidung, Cer. Classif. II. Class; II. Order. — Inflammation of the aorta occasionally takes place, but more fiequenlly in a chronic than an acute form, and commonly consecutively of inflammation of the in- ternal surface of the heart, and during the course of certain states of fever. The internal membrane of the vessel is sometimes alone inflamed, parti- cularly when the disease takes place during fevers, or extends to it from the internal surface of the heart's cavities ; but, in several ca^es, the sub- jacent cellular tissue, or both it and the internal 71 membrane, are chiefly affected. Aortitis seldom originates in the exterior coals of the vessel. 0. i. The Causes of aortitis are, — 1 st, External injuries, as blows, contusions, falls, &c.; 2d, Vio- lent, or too long-continued exertion ; 3d, The use of hot, stimulating, and aciid ingesta, spirituous liquors, and the introduction, by absorption or oilierwise, of irritating poisons and morbid secre- tions, &c. into the circulation ; 4ih, The extension of inflammation from the heart, lungs, pleura, and pericardium, and the suppression of the eruption in eruptive fevers; — M. Portal slates (A7iat. Med., t. iii. p. 157.) that he has met with it in cases of this description ; — and, 5th, The causes which are productive of diseases of the heart. 9. ii. The Symptoms can scarcely be stated with any hopes of enabling the practitioner to distin- guish this disease, which is generally met with in conjunction with oiher maladies; particularly fevers, and inflammations of the heart, lungs, peri- cardium, and pleura, and disclosed to us only by post 7norlem examination. — a. \\ hen inflammation more or less acute extends along the descending aorta, the patient generally complains of a smarting and painful sensation in the direction of the spine, with a violent feeling of pulsation of the aorta ; extending to the iliacs, without any appearance of enlargement or tumour; and unaccompanied by smallness of puUe in the remoter arteries, particu- larly those ol tlie superior parts and extremities of the body. In tlie more acute cases, a sensation of heat is (ell in the region of the vessel, sometimes with oppressive anxiety, ieipolhymia, or tendency to faintiui.', and always increased force and vivacity of the pulsations of the vessel. 10. I). The chnmic states of this disease admit not of recognition until they have produced some one of those organic lesions, which occasion marked obstruction of the circulation, or aneurismal dila- tations. Dyspnoea upon slight exertion, emaciation, a pale yellowish tint of countenance, palpitations, hypertrophy and dilatation of the heart's cavities, oedema of the extremities, &c., are then the usual symptoms ; and, although they furnish no certain evidence of the existence of this disease, yet when they are present, without the signs of narrowing of, or obstruction in, the oiifices of the heart's ca- vities, and of the origin of the aorta, chronic dis- ease of the aona may be presumed to exist. ] 1. c. Aortitis, particuliirly in its chronic states, is occasioniilly co7)iplicated with hypertrophy of the left ventricle ; the hypertrophy either causing the inflammation of the aorta, or the latter occasioning the former, paiticularly when the canal of the ves- sel is narrowed or obstructed by the effects of the inflammation. Tiie other complications have been already noticed (§ 7 — 9.). It is chiefly owing to the more frequent occurrence of the disease m a complicated than in a simple form, that it is so commonly overlooked, and so difficult to be as- certained even when its existence is suspected. 12. iii. The Prognosis of this di-^ease, when its existence is presumed, is always unfavourable ; on account both of our ignorance of much that is im- portant respecting its symptoms, complications, and consequences,andofthe fatal nature, sooiierorlater, of a great part of the effects to which it gives ritead of pro- ducing aneurismal dilatation of the external coat, had dissected it from the fibrous tunic along the greater part of the length of the vessel ; but such occurrences are very rare. This vaiiety of aneu- rism cannot be fonne. — Testa, Delle Malattie del Cuore, >S:c. Nap. WH>. — Proud/oiil, I'.diii. Med. and Surg. Journ. vol. xxii. — I.aennec, De I'Auscultation Mediate, &c. 2d ed. Paris, X^iri.—Noverre, Sur les Ancurysmes de I'Aorte. Paris, 1820 Aniirat, Cliiii(pie IMedicale, &e. t. iii. Paris, I82.i BouiUaud, .Siir le Diagnostifiue des Aneurysmes de I'Aorle. Paris, 1823. APOPLEXY-^ Approach or premonitory Signs of. 79 A/b«ifon,iiiTrans.oftheMe(lico-Chirurg. Soc. of Eilin. vol. iii Guthrie, On the Diseases and Injuries of Ar- teries. Lond. 1S30 liertin, et Bouillaud, Traite des Malad. du Coeur et des Gros Vaisseaux. Paris, 1824. — Graves, Slakes, .ind Beatty, in Dub. Hospit. Uep. vol. v. Elliolson, On the Diagnosis of Diseases of the Heart &c., fol. Lond. 1H31. — Hupe, On Diseases of the Heart and Great Vessels, &c. 8vo. Loud. 18:51 ; and Medical Gazette volumes, vol. iv. passim — Stokes, in Dublin Med. Journ. vol. v. p. 400 Green, in ibid. vol. vii. p. 231 Geddinns, in Amer. Cyc. of Pract. Med. part vii. p. 152. — See also a number of detached instances of disease of the .-iorta adduced by Ploucquet, in his Medi- cina Digesta, from various authors, to whom I have not thought it necessary to refer. APHONIA. See Voice, Marhid States of. APHTHA. See Thrush. APOPLEXY. Deriv. and Synon. Apople.iia, from anoTT'Kha-a-tu, percutio. Aphonia, Hip. Nervorum Resoliitio, Cels. Morbus Attonitus, Lommius. Sideratio, Percussio, Molinar. Schlagfiuss, Ger. Apoplexie, Ft. Accidente, Colpo, Gocciola, Ital. Apoplexya, Pol. Classif. — 2. Class, Nervous Diseases; 1. Or- der,ComsXoi^e AS&cUons(^CuUen) . 4. Class, Nervous JNIaladies ; 4. Order, Affecting the Sensorial Powers {Good). IV. Class, III. Order {Author, ^ee Preface). 1. NosoLOG. Defin. a loss of conscitiusness. feeling, and voluntary motion ; or in other ivords, a suspension of the functions of the brain, respira- tion and circulation being more or less disturbed. Path. Defin. Consists of defective vital energy with hemorrhage, or derangement of the vascular system of the brain, and their consequences. 2. Distinctions. There are lew disease.s which present a greater variety of modes of attack, or which depend upon a greater number of lesions of the organ affected, than that now under con- sideration. Its sources, modes of manifestation, and morbid relations are numerous, and many of them difficult of investigation. I'hese circum- stances have given rise to various attempts at arranging the phenomena of the disease in such a way as to indicate the relations which subsist between the changes witiiin the head, on which it depenils, and the mode and progress of attack. Apoplexy has long been described as consisting of certain forms, which have been distinguished by some authors as the sanguine and serous, with reference to the nature of the effusion ; by others, as the nervous and btlious, according to their idea of the more immediate causes. By several writers it has been, with more justice, divided into active or sthenic, and passive or asthenic ; or entonic and atonic, according to the state of the constitutional or vital powers and respiration, and the degree of vascular action accompanying it. Al! tiiese arrangements are, however, only partially founded in truth : in many respects they are entirely er- roneous. Wherein they are either the one or the other will appear in the sequel. M. Cruveilhier, one of the most recent and best writers on the disease, confines the term apoplexy to the occur- rence of spontaneous ha;morrhage in the brain, and divides it into two species: — 1st, That con- sisting of a collection of blood in a torn part of the brain, or on its surface from a ruptured ves- sel ; and, 2d, That with sanguineous infiltration into the softened structure — or capillary exu- dation into, and combined with, its substance. The defects of this arrangement, as well as of this pathology, particularly in regard to practical purposes must be apparent; for it will often be impossible to asceitain, during life, whether ex- travasation of blood has actually taken place, or inerely great congestion of the vessels, with or without serous effusion ; and many cases of true apoplexy occur occasioning death, as well as where complete recovery takes place, without either of the lesions to which lie imputes the disease having existed. 3. In the account which I will endeavour to give of the disease, its common form of approach and attack will be described ; next, the different modes in which the attack is made, di.stinguishing the principal forms it assumes ; and afterwards will be noticed several important states of the malady, arising from peculiar causes and ante- cedent affections. When detailing the different varieties and states of the disease, it will be made manifest that the distinctions heretofore offered, although occasionally obtaining, have no uniform or even general relation to the lesions existing within the head ; that apoplexy, with the sym- ptoms described as characteristic of se7-ous effusion, has been frequently found to proceed from sanguineous extravasation ; and that the san- gtiineous has sometimes only presented slight serous effusion : a similar objection being also applicable to all the other distinctions above enu- merated. 4. I. Description. — i. Of the Approach, OR PREMONITORY' SiGNS, OF ApOPLEXY. The importance of recognising the approach cf this disease, must be evident to the practical reader; for judicious measures, employed at this period, will often succeed in preventing an attack, or will render it less severe, even when they fail of avert- ing it altogether. The most common precursory symptoms are, a tendency to sleep at unaccustomed periods ; a heavier sleep than usual, particularly if accompanied with profound, laborious, or ster- torous breathing, stridor of the teeth ; nightmare ; succussions of the frame, or cramps; a lethargic feeling and drowsiness even during the waking hours; more rarely, unusual wakefulness; pains in different parts of the head, or general head- ache or megrim ; a sense of weight or fulness in the head, or of pulsation of the arteries; inco- herent talking, resembling intoxication ; a turgid appearance of the veins cf the head, particularly of the forehead ; lividity or redness of the counte- nance ; slight or imperfect attacks of epistaxis ; loss of recollection ; irritability of temper, or unusual serenity or apathy of mind ; a disposition to shed tears; suffusion of the conjunctiva; col- lapsed appeaiance of the aiae nasi; moats floating before the eyes, or dimness of vision (amaurosis) ; scintillations, or bright or shining coruscations before the eyes during darkness ; inability to follow the line in reading ; double vision, or a sharper sight than usual ; difficulty in shutting or opening the eyes; noises in the ears; dulne.ss of hearing ; a sensation of an unusual fcetor ; dry- ness of the nostrils , continued sneezing ; frequent yawning; singultus; stammering, or indistinct articulation ; the substitution of one word ftr another, or forgetfulness of words and names ; difficulty of swallowing, or fits of coughing upou deglutition ; leipothymia, vertigo, or a .sensation approaching to fiiintness ; difficulty of writing, oi inability to spell the wonis, or to follow a straight line ; torpor, or numbness, or pricking of the ex- tremities; itching, or formication of the suiface; 80 APOPLEXY — Simple and Primary. pains of the joints or limbs ; a feeling of fatigue upon slight exercise ; partial or slight paralytic afTeftions, chiefly of the muscles of the fice, or confined to a limb or part of a limb, occasioning- drooping of the eyelids, imperfect utterance, slight distortion of the mouth ; an unsteady or tremulous gait; tripping upon ascending or descending a stair, or in walking ; difficulty in voiding the urine, &c. 5. ii. The characteristic Symptoms, or those CONSTITUTING THE Attack. After one or more of the foregoing signs, or after the succession of two or more of them, and their continuance for a short or long period, the phenomena which con- stitute the disease supervene. Sometimes the premonitory signs are so slight, and of so short duration, as to escape notice, the attack being severe and sudden : at other times they are very remarkable, and several of them are grouped to- gether, the attack advancing either gradually and severely, or suddenly, and disappearing rapidly ; yet recurring after an indefinite time. The mode of approach and attack sometimes has a close relation to the state of internal lesion ; but, occa- sionally no such relation can be traced, as will be shown and explained hereafter. The premo- nitory signs, as well as the early part of the attack, generally present more or less either of augmented or diminished vascular action, parti- cularly about the head, according to the state of the vital powers. The character of the sym- ptoms, therefore, in respect of degree of vascular action and constitutional power, should receive the utmost attention, as being our best guide to a successful treatment. 6. A. In the most severe and sudden forms of attack, — the Apoplexia fulminans of the older authors, and some of the continental writers of the present day ; ihe. fortissinia of Dr. Cooke and others; xhtiapoplexiefoudroyanteoixXx^ French, — the patient is struck down instantly, sometmies froths at the mouth, has a livid countenance, complete relaxation and immobility of the volun- tary muscles and limbs, and unconscious evacu- ation of the urine and faeces ; ami dies very shortly afterwards, either with or without stertor, or rattle of the respiration, with cold, livid extremities, cold perspiration, and sometimes a cadaverous cast of countenance. 7. 7i. In the more active or sthenic forms of attack, — the Apoplexia fortis ; the entouic apoplexy of Dr. Good; A. exijuisila of various authors, — the patient is more or less suddenly seized with profound stupor, the eyes being either open or closed ; the breathing deep, slow, sonorous, or stertorous; and the pulse slow, full, hard, or strong: sometimes irregular or unequal. In this state of the disease, the above are often the chief symptoms, no signs of paralysis being ohscived. Hut frequently the mouth is drawn to one side, the eyes are distorted, and one eyelid immove- able, with relaxation, loss of sensation and of motion of a limb, or of one side of the body ; the arm of the non-paralysed side being often closely a|)|)lied either to the chest or to the genital organs. In this latter slate of the disease, there is some- times also some degree of paralysis of the urinary bladder, or of its sphincter, giving rise to ischu- ria, or enuresis, or a combination of both, 'i'he jjatient generally lies on the paralysed side, which is relaxed, inciipahle of motion, and insensible to the application of irritants ; whilst the limbs of the opposite side are sometimes subject to spastic contractions. 8. C. In the more gradual seizures, or those of a less complete character, — the atonic apo- plexy of Dr. Good ; the Apoplexia imperfecta, the parapoplexia of various writers, — the patient, after experiencing some of the premonitory symptoms, is seized with alarming vertigo, leipothymia, or feeling of faintness ; sickness at stomach and vomiting ; disturbance of the senses, particularly of the sense of sight ; loss of memory ; partial loss of sense, consciousness, speech, and voluntary motion ; weak, irregular, and sometimes quick pulse, with more or less of sopor, 9. Besides the foregoing forms of apoplexy, — which differ merely in respect of the state of the constitutional powers, the severity of attack, and the grouping of the symptoms, and not as to the organic lesions which occasion them, — other dis- tinctions ofl^er themselves, which are still more deserving of attention, as generally having a more intimate relation to the changes which are going on within the head, than the degrees of severity of seizure merely. Viewing, therefore, the pre- monitorj' symptoms as common to all its varieties, I shall divide the disease according to the form, manner, and complication of the attack, and con- sider, briefly, — 1st, The sudden form of apoplectic seizure, in its simple state, and unassociated with paralysis; 2nd, The gradually increasing, or in- gravescent attack ; 3rd, These states of seizure complicated with paralysis; and 4th, that form which commences with paralysis, and after an in- definite period passes into complete apoplexy. 10. iii. Simple and Primary Apoplexy. A. Description. In this variety of the disease the patient falls down deprived of sense, conscious- ness, and voluntary motion, is like a person in a very deep sleep, with his face much flushed, tumid, and occasionally livid ; his breathing slow, deep, and stertorous ; his pulse full, natural in frequency, or slower than usual. Sometimes slight convulsions of the limbs, or contractions of the muscles occur, or contractions of the muscles of one side, and relaxation of those of the other. The attack, in rarer instances, is either ushered in or accompanied with general convulsions, passing into complete apoplexy, or profound coma. The patient may continue in this state of profound stupor for several days; or he may recover after some hours, or even minutes, when judicious assistance has been instantly procured. ] 1. B. This form of the disease terminates, 1st, in pel feet recovery, — often in the course of a few hours, — but rarely when the attack has con- tinued longer than one or two days. I iiave, however, seen cases of perfect recovery in com- paratively young or robust subjects, after the apoplectic state had been of several days' dura- tion. 2n(i, In death, which may take place in the course of a very few hours, or alter some days, but most commonly from the first to the fourth day. 12. C. The appearances which this class of cases present on dissection may be arranijed into — 1st, Those which are insuflficient to account for the symptoms, or their termination in death ; 2nd, Those which proceed from intense injection and con- gestion of the membranes of the brain, and of the cerebral structures; 3rd, Those which are accom- panied with an eft'usion of serum, or engorgement APOPLEXY — Simple and Primary fon»r. 81 of the vessels of the head, or both ; and, 4ih, Those whicli are Httendtd by extensive extravasa- tion of blood. 13. 1st. Cases of apoplexy in whiih no mor- Ind tipjiearaiice could be detected after death, have been recorded by Wilms, Stark, Powell, and AuEncnoMCiE ; and similar casts have oc- curred to IMOHGAGNI, TiSSOT, QuARIN, OzA- NANAM, FOOEKE, and IIlLDENBrtAND. It is tO this variety of apoplexy th;it the term nervous has been applied by several eminent authors, particu- larly by KoBTUM, ZuLiAM, and Hildenbrano. NiccLAi referred it to spasm of the meninges; Lecat and Weikaku to spasm of the nerves and vessels of tiie brain. Borsieri termed it conml- sive apoplexy ; and Tissot and some oth r authors hii>teric apoplexy. HilijEnbrand conceives that it is the cause of death in contagious typhus ; patients dying jifter profound coma in this disease, without any effusion or appearance of congestion or compression, but apparently from a sudden collapse of the nervous energy of the brain. Apo- plectic seizures, rapidly terminating in death, have been occasionally observed to occur in epileptics and maniacs, as recorded by Fodere, Nacquart, Belloc, and Gendrin, without any manifest lesion of the encepiialon. This particular slate of the brain seems also, in some instances, to ob- tain in the course of a few other diseases, and to be occasioned by certain external causes, parti- culaily injuries pioducing concussion of the brain, lightning, extreme cold, and poisonous substances. 14. A case occurred to me of this description in a man aged about forty, who had complained of vertigo, leipothyniia, and loss of recollection, suddenly followed by profound sopor. He had been blooded largely when I saw him. His breathing was not stertorous ; his pulse was weak, small, and quick, and his countenance sunk. 'I'he brain, on a careful examination, presented no change in colour or consistence, and was even less vascular than usual. Tlie pineal gland was, in my opinion, smaller and softer than natural, and contained scarcely any of the small gritty bodies which are generally found in it. The pituitary gland was not examined, the case having occurred lo me a number of years ago, and be- foiemy attention had been directed to the nature and functions of this part. 15. 2d. In a large proportion, however, of this class of apoplectic cases, excessive iujeclicn of (lie vessels of the pia mater, and engorgement oj the whole vasciihir system of the encephalon, are tlie chief lesions. I'he pressure to which the brain has been Subjected from this cause, as well as the interrupted stale of the circulation, whence the attack most probably proceeded, being sufficient to destroy life in a few minutes, or a very few hours at the furthest. This forms the t-implest sate of sanguineous apo- plexy, and is of comparatively rare occurrence. It constitutes the coup de simg of the French, and is observed in those cases of coup de soleit, or sun- stroke, which proves rapidly fatal. I have met with it in two cases of this description. 16. 3d. Serous effusion is one of the most fre- quent appearances found in this form of apo- plexy ; but it seldom occurs alone, being generally accompanied with engorgenient of the veins and sinuses of the brain. It is often alsoobserxed in the symptomatic and complicated stales of apo- VOL. i. plexy which v\ill come under consideration in th® se([uel. 1 he very judicious observations which have been made by Dr. AnEnoROMBiE and M. Crcveilhier, particularly the former, as to the relation which tiiis lesion presents to the apoplec- tic state, is well deserving of the attention of the pathologist. I perfectly agree with them in con- sidering the distinction proposed between san- guineous and i-erous apO|ilexy as not supported by observation ; for many of the cases which ter- minate by serous effusion, exhibit in their early stages all the symptoms usually assigned to san- guineous apoplexy, such as flushed countenance, strong pulse, vigour of constitution, &c. ; whilst, on the other hand, many of those accompanied by paleness of the countenance and feebleness of the pulse will be found to be purely sanguineous ; even the pre-exi-tence of dropsical effusion, or the leuco-phiegmatic diathesis, or great age, &c., fur- nish no certain data, although a strong piesump- tion, of the attack being that depending upon the effusion of serum. 17. The serous effusion in those cases in which it constitutes even the chief lesion, cannot be viewed in any other light than in that of a result of pre-existing disturbance of the circulation, de- pending, as will be more fully alluded to in the sequel, either upon imperfect vital tonicity or action of the vessels, or upon obstructed circula- tion, especially in the veins and sinuses of the organ, or even upon both. Another circum- stance, well deserving of notice, and evincing that the serous effusion is of itself to be viewed as merely a part, and indeed no very important part, of the existing lesions, although the most demonstrable, is the fact also insisted on by Dr. Abercromeie, that the quantity of fluid effused bears no propoition to the degree of the apoplec- tic symptoms: for we find it in large quantity when the symptoms have been slight; in small quantity when they have been both strongly marked and long continued ; and, finally, we find most extensive effusion in the head, where there have been no apoplectic symptoms at all. The inference, therefore, clearly deducible from the most faithfully observed facts, is, that the effusion is not the cause of the apoplectic seizure, but the consequence of that state of circulation on which the disease more immediately depends. Indeed, I am even of opinion that a considerable portion of the effusion lakes place either imme- diately before death, or soon alter life is extinct ; and that several cases referred to serous effusion have not arisen from this cause, the quantity of serum having evidently not been gieater than we have reason to believe naturally exists in the head, as Lecessary lo the regularity of its func- tions, under the varying states of circulation, and of atmospheric pressure on the surface of the body, fiom which the unyielding bones of the cranium protect it. 18. 4th, Eitetisive extravasation of Hood is a rare occurrence in this form of apoplexy, being most commonly observed in other varieties of the disease. When, however, exiiavasation is met with, it is either found diffused about the base of the brain, and }ressing upon the medulla oblon- gata inthe fouith xentricle, or in both the lateral ventricles, fum rujilure of some disea^e(l vessel, or from extra\asaiion of blood near to, v\itlj lacer- ation of the cerebral striictoe at, the surface of G APOPLEXY — Ingravescent Fon.M. 82 the brain. When extravasation of blood is found, tlie attack has generally been characterised by symptoms closely approaching those of the next variety, viz. an invading and slight attack, ra- pidly followed by a short interval of sensibility, which is as quickly followed by profound coma and death. 19. ill. The gradually increasing or in- gravescent Apoplexy. — A. Description. — In lliis form of the disease the patient is not at first seized with loss of sense and voluntary motion ; or if he be so seized, the attack is momentary, and passes oft" without the use of any remedy. It more usually commences with a violent and sud- den attack of headach, very frequently accom- panied with paleness, sickness, and vomiting. Sometimes the patient sjftks down from its sever- ity, pale, faint, and exhausted ; and experiences a slight convulsion, but recovers from this state in a short time. Tliis invading and slighter attack generally soon abates, or some of the symptoms subside, and others continue in various degrees or differently modified. The pain is generally re- ferred to one side of the head, and the vomiting sometimes returns. Coldness, paleness, and faintness are complained of, with all the other symptoms indicating a serious shock received by a vital organ. The pulse is weak and frequent, the countenance cadaverous and sunk, and the patient feels depressed, but sensible. After this stale has endured from an hour, to two, three, or even more, the surface acquires some heat, and the pulse improves in strength. The face now be- comes flushed, and the features expanded. The oppression increases rapidly ; he answers ques- tions slowly and heavily, and at last sinks into a state of profound stupor or coma. The period which elapses from the invading attack, to the continued and perfect coma, varies from less than an hour to thiee days. But Dr. Abercro.mbie, who has illustrated this form of apoplexy in an able manner, has observed an interval of not more than twenty minutes, and has seen it pro- longed to a fortnisfht. 20. B. I'his is the most fatal form of apoplexy, very few lecovering from it. On iiispectiun after death, extensive extravasation of blood is always met with. From the whole hi-^tory of this class of cases, Dr. Abkrcrombie thinks that they de- pend upon the rupture of a considerable vessel without any previous derangement of the circu- lation, the rupture probably arising from disease of the artery at the part which gives way. He conceives that, at the moment when the rupture occurs, a temporary derangement of the func- tions of the brain takes place, but that this is soon recovered from ; and the circulation then goes on without interruplion, until a (juantily of blood has been extravasated sufficient to produce coma. This may possibly be the case, particularly in those instances where the coma soon follows the first attack. I am more inclined to think that a depressed or deranged state of the vitiil energy and circulation of the brain, similar to that which occurs in the foregoing variety of the disease, takes place at the commencement of the seizure, and that the extrava'-ation freciuenlly accompanies the reaclipearances (§29.). ArOPLEXY — In 24. In rarer instances the extravasation of blood takes place in tlie cerehellum. Wlien the effusion is eitlier in this situation or below it, the symptoms are more severe and rapid in their pro- gress than when it is in the substance of the brain. '1 his remark is also applicable when the blood flows from or into the svibstance of the annular protuberance, or accumulates around the medulla oblongata and foramen magnum. In some of those latter cases, which are much rarer than the foregointj, the fatal result is rapidly pro- duced. In nearly all the cases of extiavasation taking place, eitlier within or near the surface of any part of the cerebral structures, it is extremely dilbcult, if not entirely impossible, to trace its exact source, or the vessel or vessels vihence it has proceeded. It is very probable that the la- ceration produced by haemorrhage separates seve- ral vessels, and thus a greater number are laid open than are concerned primarily in producing the extravasation. Besides, the softening of the surrounding cerebral structure may destroy adili- tional vessels, and give rise to secondary extra- vasations of blood, either into the original cavity, thus forming a more recent portion or layer of coagulum, or into the surrounding structure in the state of capillary infiltration. 25. Besides the foregoing sources and seats of extravasation, others have been observed. INI. Seures describes a ciise in which the haemor- rhage had occurred in the substance of the pons varolii, whence the blood had burst into the occi- pital fossa. It may also take place from the superficial vessels, forming the meningeal apo- pte.iii of this writer. In cases of this description, the blood generally seems accumulated between the dura mater and arachnoid ; but cases have been recorded, in which the blood appeared to have been discharged from the retiform ylexus of vessels at the base of the brain, and confined beneath the pia mater. The hsemorrhage may also proceed from ■ulceration and rupture of a con- siderable arterial re^sel. Dr. RJills met with a case in whicli it was traced to ulceration and rup- ture of the basilar artery; and JMohcagni and Stu RES have found it proceed from a similar lesion of the internal caioiid. RIoncAGNi, De Haen, and Hufelaxd. have traced the extrava- sation to the vessels of the choroid plexus. This is probably the source of the haemorrhnge when it is confined to the ventricles, without lacer- ation of the surrounding substance of the brain. Rupture of one of the lateral sinuses has also been observed : a case of this description occurred to Dr. Douglas. (^Ediu. Med. Essays and Observ. vol. vi.) 26. Small aneurisms in various paits of the cerebral vessels may have formed, and by their rupture occasion apoplexy. Serres relates cases in which aneurism occurred in the basilar artery, and in a small artery in the circle of Willis. {Archives Gen. de Med. t. x. p. 419.) Similar cases are also recorded by Blane and Hodg- son. Numerous other instances of extravasation from disease of the cerebral vessels have been noticed l)y Morgagni, Lieutaud, De Haen, Baillie, Portal, Lallemand ; and especially by BouiLLAUD (Mem. de la Soc. Med. d'Emul.l.ix.), and Dr. Bright {Medical Reports, vd. ii. p. 266, ct seq.), who have adduced seveial proofs of this kind of lesion. In a case of apoplexy recorded CnAVESCEKT FORM. 83 by Bang, the extravasation had taken place be- tween the occipital bone and dura mater. Dr. Watts, of New Yoik, met with a case in whicii the ha'morrhage had proceeded from the erosion of a vessel in connection with caries of the inner surface of the parietal bone. 27. hijiltration of the blood info, with soften- ing of, the cerebral structure, also seems to form one of the lesions which are sometimes met wiili in this form of apoplexy, although not nearly so frequently as in the seizures which supervene on, and are accompanied with, paralysis, where this state of softening forms the principal lesion ; where- as, when it occurs in this variety, it is one of seve- ral other changes, or at least a subordinate one. 28. Perhaps the most common causes of hae- morrhage in this form of apoplexy, particularly when occurring in the substance of tlie brain, are ossification, earthy deposits in various places, and a peculiar fiiability, of the vessels of the organ. This state of the vessels, as disposing to aneurism and haamorrhage. has been well illustrated by Scarpa, and is justly insisted upon as being con- nected with apoplexy by Abercroiibie and Cru- VEiiHiER, and frequently met with in the brains of elderly persons. " There is much reason to be- lieve," Dr. AEERCROMiiiE remarks, " that th's diseased condition of the arteries of the brain may sive rise to a variety of complaints in the head ; and that, after going on for a considerable time in this manner, it may at length be fatal by rup- ture." The remarkable frequency of osseous or cretaceous deposits, &c. in the arteries of the brain in cases of apoplexy, had been noticed by Cor- TFSius and Morgagnt. There can be no doubt that changes of this description, in connection with alterations of calibre and of vital cohe- sion taking place in vessels, the coats of whicli are remarkably thin and fragile even in the healthy slate, will readily dispose them to rup-_ ture ; particularly when influenced by the varying actions of the heart, and the diflTerent emotions of the rtiind, or when congested by derangement of the vital energy bestowed on them by the ganglial system, or by disonler of the veins or sinuses, and interruption to the return of blood through those channels. Indeed, there is every reason to believe that the ha?monhage may even pioceed from the smaller veins, in many of the casts where con- gestion has been concerned in originatmg it, and especially when the return of blood from the head has been interrupted so as to produce the disease. It may therefore be inferred, that the laceration of the cerebral structure is occasioned by rupture of either an arteiial or venous capil- lary vessel or vessels, and extiavasation of blood ; and that, in cases of this description at least, the morbid change commences in the vessels, and not in the cerebral tissue itself, the cerebral structure being only consecutively diseased. , 29. Cases have also occurred, in which this species of apoplexy has arisen from disease of the sinuses, chiefly thickening, induration, and ob- struction or obliteration of their canals. AV'lien this is the case, the veins running into the sinuses are generally enlarged, tortuous, engorged, and as if varicose. I have met with cases in whicli all the symptoms of this disease proceeded from the development of tumours in the central parts of the brain, and similar instances have been re- corded by several writers. G 2 84 30. Besides disease of the vessels of the brain, lesions of the membranes, as o'sific depcsiti=, ossifi- cation of the falx (Morcagm), but particularly derangements of the circulation in them, espe- cially in the pia mater, — as evinced by copious extravasation on the sui face of the hemispheres, or at the base of tiie encephalon, — and inordinate injection and congestion, deserve to be enumerated among the sources of this variety of apopiexy ; although they are, perhaps, more frequently pro- ductive of congestion and serous effusion, and consequently of the most common foims of tlie preceding species. But there can be no doubt that this form, as well as the foregoing, will also some- times proceed, although much more rarely, from injection and engorgement of the vessels of the membranes and of the brain itself, without extrava- sation ; and that in other instances the degree of congestion, and the accompanying serous effu- sion, when occurring without extravasation, are not of themselves sufficient to account for the fatal i~sue, without imputing something to the vital condition of tiie encephalon itself. 31. iv. Apoplexy complicateh with, or TERMINATING IN, PaRAI.VSIS. A. DeSCliptio)! . — This form of the disease may take place either suddenly or in the manner of the immediately preceding variety ; but more frequently the lat- ter, with the additional phenomenon of paralysis, which may be either coeval with the attack, or supervene as the apoplectic stale passes off. In the majority of cases, the patient complains of symptoms referrible to the head, particularly of acute pain in one part of it ; and is suddenly or gradually seized with stupor or profound coma, loss of speecii and voluntary motion — with per- fect apoplexy. The mouth is often distorted, and the patient moves the limbs of one side ; whilst one or both limbs of the opposite side are found to be deprived of all motion upon their being pinched or tickled. The patient geneially lies on the paralysed side, and one or both the oppo- site limbs are sometimes contracted or slightly convulsed. 32. In other cases, the seizure is less perfectly apoplectic in its character, varying in the degree of coma and disturbance of the respiration ; and, as the seizure declines, the paralytic symptoms become the prominent disease. In some instances of this description, the comatose state is slight or of short duration ; but the eyelid, or orbicularis of the eye, of one side is paralysed ; or the eyes are distorted, the mouth twisted, and the tongue drawn aside upon itsbeing held out. In the major- ity of these cases, the speech is either altogether lost or greatly impaired ; but the patient appears sensible of his situation, and even attempts to express himself by words or .signs : but he is fre- quently incoherent, unintelligible, and without recollection, even when the power of speech is partially retained. In many of this class of cases, com[)lete hemiplegia exists, or gradually mani- fests itself as the seizure de.-lines. Sometimes one limb only is affected, which is commonly the arm ; although the leg is sometimes the only pa- ralysed |)art. In rare casts the power of swallow- ing is lost, owing to paralysis of the muscles of the pharynx and tlie upper pait of the oesophagus. 33. This form of apoplexy presents various modifications in its further progress, which may be ariangcfl under liie following heads : — APOPLEXY COMl'LICATED WITH Pahalvsis. a. Tiie apoplectic attack may, under judicious treatment, pass off entirely and (|uickly, and leave no trace of its existence after a short lime ; the paralytic symptoms, particularly wlien slight, either disappearing with it, or soon afterwards. b. The recovery from the apoplectic seizure may be more gradual, taking place only in the course of some days ; whilst the paralytic symp- toms require several or many months for their removal. c. The apoplectic seizure may be either quickly or slowly removed ; but the paralysis may be per- manent,— may continue for years, either until the patient is carried off by a subsequent seizure, or by some other disease. d. In other cases, tlie patient experiences a very partial recovery merely, or is subject to several exacerbations ; is confined to bed or his room, speechless or paralytic, or the latter only, with his mental faculties either more or less im- paired, or but little affected ; and at last sinks gradually exhausted, after many weeks, or even months; sometimes having become comatose for a short time before death. e. The apoplectic se zure may pass off in a shorter or longer time, leaving either hemiplegia, or paralysis of a single limb, or impaired speech and mental faculties ; and may recur after a period of indefinite duration, and either carry off the patent, or leave his symptoms greatly aggra- vated. In this latter case, either another seizure again takes place after a time, or he sinks into the state characterising the immediately preceding modification. 34. B. The morbid appearances which this variety of apoplexy, in its different states, pre- sents, are very diversified : — 1st, In some cases, HO lesion is detected sufficient to account either for the symptoms or the termination ; 2d, In other cases, serous effusion merely to a slight extent, or little beyond what we have reason to suppose usually exists within the cranium, is found, sometimes conjoined with more or less congestion of the vessels; 3d, In some instances, congestion is the most remarkable and only mor- bid appearance; and, occasionally, this state is connected with disease of the arteries, geneially of the kind already described (^ 28.). 35. 4th. Eatraiasation of blood into a defined cavity is amongst the most frequent lesions met with in this form of apoplexy. We have already seen, that, when llie ha?n)orrhage is very con- siderable, or bursts its way into the ventricles, or to the surface of the br.iin, the apoplectic seizure is complete; and, owing to the quantity of blood effused, and the pressure thereby occa.-ioned on the whole encephalic mass, the patient is either suddenly carried off before any paralytic symp- toms become evident, or rendered comatose, and incapable of sensation and voluntary motion in every limb. In the majority of cases in which extravasation takes place in this form of apoplexy, there is every reason to Lelii ve, from its small extent, that it is merely a consequence of the simjile apoplectic state occasioned by congestion or interrui)tion to the circulation, — these states of the circulation being followed by the extravasation, on which the paralytic symptoms chiefly depend. 36'. 5th. The extravasated blood presents vaiious appearances, according to the period which has elapsed from its cfl'usion ; and the surrounding portion of t!ij brain, and parietes of the ca- vity formeJ by the coagulum, likewise undergo changes — in some cae parts of the brain, is someiiines ol)served ; but the rehition between them is neither so uniform nor so precise as to warrant the opinion that there exi^t-; any necessary dependence of these par- ticular functions upon the parts of the brain to which they have been ascribed. Without re- fe ence, however, to the part of the brain on which the memory of words depends, it has been remarked by M. Itard, that aged persons struck by apoplexy frequently lose the recollection of tiiem in the following order : — First, want of re- collection of proper names, next of substantives, afterwards of verbs and adjectives; which last are often the only words which can be recollected. 57. c. It was contended by ]\IM. Delaye, F0V11.LE, and Pinel-Gkandchamp (Noiiv. Journ. de Med. 1821^, that disturbance of in- telligence depends upon lesion of the gvei/ sub- stance of the biain, whilst disorder of loco- motion proceeds from change of the white or meduliirij structure. But this doctrine seems no better founded than the preceding, being open to the same objections which have been urged against them. Lesion of the cineritious substance is, perhaps, more frequently accompanied with spasms and convulsions at (he commencement of the attack, than when it is seated in the medullary stiucture. 58. d. The cerebellum. — MoncAGxi has re- corded that Valsalva once stated to him, that a case of apoplexy to which he was called was seated in the cerebellum. Dissection verified the diagnosis ; but he does not mention the symptoms on which Valsalva founded his judgment. M. Sekres, adopting the doctrine of Gall, says, that erections or seminal emissions, in men, and dis- charges, sometimes of a sanguineous appearance, from the female organs, are the distinguishing signs of apoplexy of the cerebellum. M. Cru- VEii.HiER states that he has seen apoplexy of this part, but that these symptoms were not present. Some cases have certainly occurred to counte- nance the opinion of Serues, and others to over- tlirow it. It seems more probable that the effusion in the cerebellum affects the medulla oblongata, and occasions a partial asphyxia and stasis of the blood, from the influence of this part upon the respiratory class of nerves, and thus induces a slate favourable to erection. Cuuveilhier states that he failed to produce this symptom by iiri- taling the cerebellum of dogs. 1 may, moreover, add, that the symptoms contended for by Serres, and the followers of Gall, as distinctive of cere- bellic apoplexy, have occurred in cases wherein the cerebellum has been found sound on dis- section. 59. Apoplexy of the cerebellum occasions, cateris paribus, a more serious lesion of the func- tions of circulation and respiration, and is more dangerous than apoplexy of the cerebrum. The symptoms are evinced on the side opposite to the seat of lesion, in this as in other apoplexies. The opinions that the cerebellum is the regulator of all the voluntary movements, and the source of all sensibility, according to certain Continental physiologists, particularly J\IiM. Flouuens, Fo- DERA, FoviLLE, and Pinel-Grandchamp, have not been confirmed by the history of apoplexy seated in it. The hypothesis of Rolando, pro- fessor at Turin, that the cerebellum performs a function analogous to the Voltaic pile, in gener- ating a fluid or principle requisite to the func- tions of voluntary muscular action ; and that it transmits this fluid, under the influence of the brain, and through the channel of the spinal chord and nerves to the must-Ies ; seems much more accordant with comparative physiology, and the pathology of the nervous systein. 60. e. The annular protuberance — the point of junction of the spinal chord, brain, and cere- bellum— the centre of the cerebro-spinal system, is sometimes the seat of apoplexy, notwithstanding its density. When the extravasation of blood in this pari is to any considerable extent, immediate and complete paralysis of the trunk, and of both the superior and inferior extremities, is produced, with the most profound lesion of respiration, quickly followed by death. When the effusion is to a small extent, and in one side of the protuberance, the paralysis which results seems on the opposite side of the body, as may, indeed, be inferred from anatomy. The extravasation must be to a small extent, to admit of recovery. Sometimes the effused blood is observed to have been disposed in layers between the lamina of white matter entering into the structure of the protuberance. The reparation of the apoplectic lesion of this part takes place in a similar manner to that which T have already described (§ 37 — 40.). It would seem that the smallest division of the fibres of this part is followed by permanent affection of feeling and motion. 61. Connected with this subject, IM. Flourens concludes, from his experiments and observations, that the cerebral lobes, the cerebellum, and the tubercula quadrigemina, may lose a considerable but limited portion of their substance, without losing the exercise of their functions ; and they may re-acquire them after being totally deprived of them: that the spinal marrow and the medulla oblongata are the only parts which directly afl'ect the same side of the body w ith that in which they themselves are affected ; whiUt the tubercula quadrigemina, the cerebral lobes, and the cere- bellum, alone produce these effects upon the op- posite sides to that in which they are disea-ed, — the former acting in a direct course, the latter in a cross direction. These inferences, however, want confirmation in several particulars. 62. II. Diagnosis. — Apoplexy is, in general, readily recognised : but it may occur in such a way and under circumstances which will render Its diagnosis a matter of difficulty. Thus we may be called to a patient, of whom nothing is known, with the following symptoms: — Coma, laborious or stertorous bieathmg, relaxation or rigidity of the limbs, complete loss of consciousness; he may or may not have had convulsions, or a blow upon the head ; there may be hemiplegia or not. In this case, is the patient in a state of dead drunkenness, asphyxied, poisoned by nar- cotics, or affected with the profound coma con- sequent upon epileptic or hysteric convulsions? Is it concussion of the brain ; the advanced effects of organic di--ease within the head — iis of cysts, abscess, or of inflammation terminating in effusion ; or fever, either at its commencement or close, with apoplectic symptoms ? It is true that these states differ but little fr.im apoplexy ; the difierenca consisting chiefly in grade, unkss 90 APOPLEXY haemorrhage has taken place when paralysis generally manifests itself. But it should be at the same time recollected, that there is some- times hsmorrhaue without local palsy, and even palsy without sanguineous extravasation. Tlie iliignosis of such cases is very important; but without information of the circumstances con- nected with tlie history of the case, its diffi- culty is extremely great. 1 once treated a case of adynamic fever, originating in infection, and commencing with sudden loss of sense and volun- tary motion, as a case of apoplexy, and gave an opinion accordingly. The history of the case, and its subsequent course, sliowed the error. When paralysis is present, the nature of tlie case is then manifest, although the particular cause of the palsy may be a matter o( doubt. We should, therefore, incjuire after this symptom by observing the attitude and motions of the patient, by pinch- ing the extremities, tickling the soles of the feet, &c. The existence, also, of stertorous, labo- rious, or snoring respiration, will confirm the dia- gnosis. 63. a. It should be kept in mind that, whilst the comatose state consequent on epilepsij or hyderia way closely resemble apoplexy, ihe convulsive stages of these diseases may give rise to the true apoplectic state. But, in the usual consecutive coma of epilepsy there is no stertorous breathing, and the limbs are not so relaxed as in apoplexy. 'J'iie coma, which supervenes to inflammation of the membranes of the brain, is chiefly to be dis- tinguished from apoplexy by the antecedent symp- toms, and by j_the loss of sense and cerebral function being greater than the loss of motion ; independently of the association of paralysis, so frequently characterising the apoplectic seizure. 64. b. The symptoms consequent upon injuries of the head, whether simple concussion, or com- pression from depressed bone, or extravasation of blood, are in all respects identical with certain of the varieties of apoplexy described above, and are not to be distinguished from them, but in respect of the exciting cause. A similar remark is ap- plicable to cy^ts, tubercles, and other tumours slowly developed in the encephalon, which some- times produce no very marked external sign of disease, until apoplexy, and still more frequently hemiplegia, suhing the vital energy of the brain at the same time that they favour a plethoric state of its capillary vessels. These derangements of vital manifestation and of circulation, when fre- quently pro'luced, will occasion furtlier ciianges, and sometimes will, upon the occurrence even of the slightest exciting ciiuses, terminate in those lesions which constitute the disease itself. 81. ii. The exciting causes frequently art in a similar manner to the foregoing; but generally in a more sudden manner and intense degree. 'I'hese are, immoderate perturbations of mind, as con- sternation, terror, fear, despondency, anger, dis- appointments, anxiety, distress of mind from losses, sorrow, violent chagrin, gnat joy, imnio lerate fits of laughter, iind all painful, (lepressing, or excit- ing mental emotions and exertions. Numerous illustrations of the inmiediate influence of the above passions in producing the disease are to be found in ilie writings of AnETiT.us, Forestus, Zui.iAM, Poutat,, J5oiiciii;r, Ciieyne, Cooke, Aur.nciio.MLiE, ^c. , — Causes. 82. Intemperance in eating and drinking is amongst the most common exciting causes of the disease ; and numerous instances of its immediate ill effects are adduced by the above writers, and by BoNET, IMoRGAGM, ^Iead, Fotiiergu.l, and others. Oppletion and distension of the stomach prevent the descent of the diaphragm, impede the dilatation of the cavities of the heart, obstruct the circulation through the lungs and the return of blood from the head, whilst the vital energy is abstracted from the brain, and determined to the digestive organs, in order to dispose of the load by which they are oppressed. Owing to this procession of phenomena the vessels of the ence- phalon are engorged at a time when their vital energies are diminished ; while the rapid influx of fluid matters into the circulation as the process of digestion advances, tends to heii;hten the vascu- lar fulness and disposition to eflTusion. Besides, habitual intemperance of this description gener- ates a plethoric state of the system, with con- gestions of internal viscera. Spirituous liquors are seldom productive of apoplexy until after a continued addiction to them, unless they are taken in excessive quantities ; and perhaps the habit of drinking much malt liquors or wine is still more frequently a cause of the disease, than indulging in spirits, which, when they occasion apoplexy, act more upon the vital endowments of the brain, than in causing extravasation of blood ; the chief changes produced by them, being serous efl"usion with injection of the vessels. Sir A. Carlisle has adduced a case of apoplexy, arising from drinking an immense quantity of gin. Upon dissection, the odour of the spirits was detected in the serum effused in the ventricles of the brain. 83. Connected with the use of spirituous or fermented liquors, I may here allude to the in- fluence of the class of narcotics, particularly opium, stramonium, hyoscyamus, tobacco, &c., the excessive use of which sometimes occasions all the symptoms of congestive apoplexy, and even extravasation. Of all the narcotics, the difl^erent species of monkshood most readily occa- sion apoplexy, when taken by mistake. I was consulted in the case of a young man who had incautiously chewed some seeds of this plant; he was shortly afterwards seized with a sense of numbness of the face, soon followed by complete apoplexy, as described under tiie third variety of the disease, from which he recovered with great diflnculty, and with palsy of one side, with which he continued to be affected. 84. Nearly allied to the operation of narcotics is that of the fumes of charcoal, and various mephitic gases, which, whilst they diminish, or altogether arrest the changes affected by respir- ation on the blood, thus occasioning asphyxia, and earns without stertorous breathing, some- limes produce all the symptoms of complete apo- plexy, owing to their effects upon the vital en- dowment of, and circulation in, the brain. In respect of the modns operandi of narcotics and deleterious gases on the system, somewhat diflVr- cnt opinions imve been entertained by Cullfn, Goodwin, Curiiii',, Oiuu.a, Hrodie, and others who have investigated the subject. There can, however, be no doubt that they act chiefly upon the ganglial system, particularly on that part which actuates the brain, when they produce apoplexy, destroying the influtuce of this system APOPLEXY — Causes. 93 ^ on tlie vessels of the enceplialon, and thereby relardin;; the circulation in, and favouring con- gestion of, its capillaries, and interrupting the functions of the organ. 85. Violent straining in lifting heavy weights, or muscular exertions; straining at slool ; the venereal act, particularly under unfavourable circumstances, or too frequently repeated ; the metastasis of other diseases, especially of gout and rheumatism ; whatever impedes the return of blood from the head, as a de|)endent posture of the head, or holding it long in an averted position, or looking backwards without turning the body, particularly when the neck is short; sleeping upon too full a meal, especially with a neckcloth or other ligatures around the neck ; violent fits of coughing or sneezing ; pregnancy and child-birth ; exertion of body, with an anxious mind; stumbling; the use of the warm bath; and the sudden exposure to heat or cold ; are among the most frequent exciting causes of apoplexy. 86. The effect of the sun's raifs in producing what is commonly called coup de soleil, is well known. iNIany of the seizures thus occasioned amount to complete apoplexy, in some one of its forms, particularly the first and third. But other conditions of heat will also sometimes occasion an attack, as heat combined with moisture, and the exhalations from a number of persons crowded together in ill-ventilated apartments. The in- fluence of crouded rooms and assemblies in causing apoplexy is well known, and in occasion- ing headach, and sense of fulness in the vessels of the encephalon, even in persons not predisposed to an apoplectic attack. 87. Cold also, particularly when applied sud- denly to the surface of the body and lungs, ex- cites the disease in aged persons, whose vital energies are already greatly impaired. The ves- sels of the brain in this class ef subjects are weak, fragile, and liable to rupture, or to permit a portion of their serous contents to escape. Be- sides, cold depresses still lower the vital powers of the frame, and tends to retard the circulation, whilst ii drives the blood from the surfaces into the large viscera, and particularly into the ence- phalon, which, from its unyieldirig case and ex- emption from atmospheric pressure externally, is more obnoxious to congestion, retarded or inter- rupted circulation, and compression from vascular fulness, than any other organ; occasioning lethargy in the rubust or young, and apoplexy in the old or predisposed. Cases illustrative of apoplexy produced by long exposuie to great cold, particularly when the disposition to sleep which it induces is yielded to ; by the incautious use of the cold bath, and of ice applied to the head ; and by the practice in Russia and Poland, of using a snow bath after the warm bath; have been recoided by VVepfer, Waltheb, Penada, Macard, Brandis, Keilik, Portal, and Frank. Of about filly perfect cases of the disease, the causes were analysed by Dr. Cheyne, and ranked as follows: — 1st, Drunkenness and habitual indulgence in exciting liquors; 2d, 'I'he form of the body; 3d, Temperament, sanguine, sanguineo-choleric, choleric ; 4lh, (Jlutioiiy ; 5tli, liidolence; 6th, Mental anxiety; 7ih, Hts of passion; Blh, External heat; 9th, The use of tobacco. (Un Apoplexy and Lethargy, p. 149.) 88. iii. Modus operandi of the above causes. — If we endeavour to trace the relation subsisting between these causes, and what we know of their uniform efiTects, either upon the brain or on other parts of the body, we shall find that they tend first to excite, and afterwaids to exhaust, the vital energy, and to di>tend the capillaiies of the part. JVow, as the brain is enclosed in an un- yielding case, it must follow that, when the capillaries are excessively distended, the veins, which are the most yielding, will be propor- tionately compressed, whilst the force of the cir- culation in the arteries will tend to perpetuate this distension, and consequently the compression of the veins. 1 hus the circulation will be re- larded ; the portion of the gangliul system sup- plying the brain be likewise, to a certain extent, benumbed by the increased pressure to which it is subjected, and the functions of the organ abolished, even without extravasation having occurred. Upon dissection after death, the blood, which had distended excessively the ca- pillaries, will be found to have passed into the veins, giving the appearances of venous con- gestion meiely, as is uniformly observed in other parts of the frame, which have been the seat of congestion, without inflammation, — venous con- gestion, at least to any considerable extent, being incompatible willi the physical condition of the encephalon during the life of the patient, un- less it be occasioned by impeded return of bloud through the sinuses and large veins, although conge>tion of its capillaries undoubtedly fre- quently exis:s. 89. When hemorrhage takes place, the efl^used fluid will occasion more or less pressure, accoid- ing to its extent ; but from the condition of the encephalon, the pressure will almost equally affect all parts of it ; the blood being thereby prevented, to a certain extent, from returning by the veins, whilst the capillaries and arteries will be unnaturally distendid. This sjate, however, will pass off after death ; and venous congestion only, with extravasation, present iiself. When, however, the extravasation is large, the pressure will prevent both the veins and the capillaries from receiving their due proportion of blood ; whilst the ganglial system of the encephalon will be analogously, or injuriously, affected. But this topic will be pursued heieafter. 90. iv. Conseculiie and complicated Apoplexy. — An attack of apoplexy may be caused by other diseases, in vaiious stages and states of their pro- gress. It may occur after the pre-existing disease has disappeared, and in consequence of its di-- appearance, as in the case of suppressed lidjnior- rhages, particularly epistaxis and haemorrhoids ; or suppiessed evacuations and eruptions, as tho-e from the uterus, bowels, &c. ; or it may supervene in such a way as will lead us to infer that its occurrence has been the cause of the disappear- ance of the pre-existing malady, as in cases of misplaced or metastatic guut, rheumatism, l sea.sons, seem to countenance the opinion of these authors. When apoplectic seizures usher in fevers, whether paludal or infectious, the attack is seldom accom- panied or followed by paralysis. In a case, however, of perfectly formed apoplexy ushering in a case of endemic fever of a warm climate, which occurred in my practice, paralysis super- vened upon the seizure. An attack of true apoplexy may also occur in the stages of depres- sion and collapse of adynamic and typhoid fevers, particularly in the former stage: in the latter, coma is generally present, but it very rarely amounts to the true apoplectic state ; and when it does, hemiplegia generally attends it. 95. b. The occurrence of apoplexy after fp;7p/)i(c convulsions, the convulsions and eclampsia of the puerperal state, and, more rarely, during the hysteric fit, is well known. It may even take place during the pains of labour, without pre- vious convulsion, and in the latter months of pregnancy. In these cases the attack ofll'ers nothing to distinguish it from the first, second, or third varieties described above. It is a not in- frequent termination of inflammation of the brain, or of its membranes. Indeed, there seems every reason to suppose that acute inflammation of that part of the cerebral structure in which ha;nior- rhage takes place, not infrequently precedes the extravasation. It also occasionally supervenes upon mania, and the various states of iiisanitif, paiticularly in its fourth or last-noticed form (§ 43.). It also occasionally arises from inter- rupted circulation through the lungs, — a fact well demonstrated by Bonet, Bang, IIuxiiam, J.Frank, and Chlyne. Its occui-rence during the advanced stages of both acute and chronic diseases of the air-passages and lungs, particularly those characterised by violent attacks of cough, has al^o been observed by myself, most frequently in hooping-cough, bronchitis, asthma, and emphy- sema of the lungs. 96. c. The connection which sometimes subsists between apoplexy and orga^iic disease of the heart, especially hypertrophy of the left ventricle, has been remarked by Valsalva, Morgagni, Lii r- TAUD, Testa, Portal, Cheynf, Rutierand, Ber'iin, and Hope; and has been viewed by them in the light of cause and effect, the apo- plectic seizure arising from the cardiac disease. ConviSART and Rocnoux, physicians of large experience, have thrown doubts upon the nature of this connection ; have likewise denied the fre- (jueiicy of its occurrence ; and have viewed these diseases as sometimes consecutive in their origin, although co-existent in their advanced s^tate, but without the relation of cause and effect: thus con- sideiing the occurrence of apoplexy or paralysis in the advanced stages of disease of the heait as entirely an accidental coincidence. But, as I have contc nded many years ago, in the London Medical Ihpository, when such a complication of morbid slates is fierjuent, prominent, and obsr rves the same APOPLEXY — Complications, 95 succession, a more intimate connection than mere sequence or coincidence ought not to be entirely rejecteJ, particularly when admitting of a rational explanation. The frecjuency of apopUxyor pa- ralysis, and the general presence of the latter when tiie former occurs in tlie advanced progress of car- diac disease, especially lesions of the orifices, and hypertrophy of the left side of the heart, have led nie to believe that more than mere coincidence actually exists. It is, however, by no means im- probable that the disposition to organic change throughout the whole vascular system, sometimes associated with disease of the heart, may so far exist in the delicate vessels of the brain, as to fa- vour the occurrence of haemorrhage from them when the action or impulse of the heart is increa'^ed by disease or tiie influence of passion or emotion ; or when the return of blood from the head is im- peded by congestion, or interrupted circulation through the lungs or right side of the heart, 97. d. The association of apoplexy and hepatic dhurder has been noticed by Stoll, Ualdinger, JMoLL, Chevne, and others. The circumstance of icteric patients frequently being cut off by apoplexy marks the connection, I have met with several cases in which both apoplexy and para- lysis have supervened to, and become complicated will), heptatitis, both acute and chronic, particu- larly the latter. The liver is seldom diseased without disordering the functions of the brain ; and I believe that accumulations of vitiated bile in the gall-bladder and hepatic ducts, independ- ently of any actual disease of the liver, will pre- dispose to the apoplectic seizure. I am the more confirmed in these opinions by having observed disease of the biliary apparatus in a very large proportion of those who had died of apoplexy or paralysis ; and, in many of those who have recovered, the active use of purgatives had pro- duced morbid evacuations, containing a large quantity of blackish green, greenish, or yellowish brown bile, before much amendment had taken place. It may, however, be conceded that serious disturbance of the brain equally induces disorder of the liver; and that the latter may have been occa^iioned by the former. But this merely proves the frequency and intimacy of the association. It should also be kept in recollection that the apoplectic seizure generally masks the hepatic affection ; the practitioner should, therefore, ex- amine the region of the liver, where, as well as at the epigastrium, fulness, and, in some cases, the existence of tenderness may be detected : and, as the consciousness of the patient returns, the hepatic disorder will occasionally become more manifest. This complication is so important and frequent, that it ought always to be looked for in practice ; for many of the causes which oc- casion hepatic disorder also give rise to cerebral disease : and the production of either the one or the other singly, often favours the appearance of the other subsequently. I have no doubt, however, that an inflamed or actively congested state of the substance of the liver has a very marked effect in exciting that state of the capil- lary circulation of the brain on wliich the apo- plectic seizure has been shown to depend (^88.). 98, e. The influence of gustiic disorder in pro- ducing apoplexy, not merely as evinced by in- toxication, a surfeit, &c., but also by some one or moie of the several ailments which charac- terise impeded or otherwise disordered function of the stomach and intestines, has been noticed by SCIIENCK, SciIROEDER, VVEICKARn, MlZLER, FoTlIEIiGlI.L, SciIjErFEn, Tmi.ENlUS, IIuFELAND, l.ouvEU- ViLEERMAY, and Chomel ; and more strongly insisted on by Broussais and his fol- lowers. Although the gineral dependence of the latter on the former has been too absolutely con- tended for by Brol'ssais, the occasional connection cannot be doubted. Indeed, in several of those cases wherein the association with hepatic dis- order is obst'rved, gastric and intestinal disturb- ance is also evinced. But however complicated, whether with either gastric or hepatic disorders only, or with both conjoined, apoplexy is, perhaps, as often the concurrent result of the same causes that produced these disorders, as a disease springing from and dependent upon them. The fact ought not to be overlooked, that the vital manifestations of the stomach, liver, and brain, although different, are yet actuated by the same system of nerves — the ganglia! ; and that, notwithstanding the in- dividual parts of this system seem to perform modified offices, yet the healthy condition of the one is necessary to the perfect functions of the rest : and, consequently, a morbid state of one considerable portion of the series will neces- sarily, sooner or later, be followed by derangement throughout, — causes which operate upon one part of the circle, thus having their effects extended to other parts remote from the seat of primary im- pression. It should not, however, be overlooked that a large number of instances of gastric af- fection, retching, &:c., accompanying the apo- plectic seizure, proceeds from the sympathetic efl^ect produced upon the stomach by the severe injury or shock sustained by the brain. 99. /". The occurrence of apoplexy, either after, or during attacks of colica pichmiim, has been no- ticed by Hagendorn and Cheyne. Although palsy is the common consequence and state of com- plication, yet apoplexy, with or without paralysis, particularly the former, is sometimes met with. An instance occurred to me some time s-ince of a patient having died of apoplexy duiing an attack of this disease. The constipated slate of the bowels to which persons affected with cerebral disease are liable, when neglected, or not readily yielding to medicine, will sometimes favour the occurrence of the apoplectic attack. 100. g. The association of apoplexy with disease of the kidneys has been noticed by several writers, particularly Bonet, Litirf, RIorgagni, and Bright. The occurrence of apoplexy, particu- larly serous apoplexy, after suppression of urine, is not uncommon. By some writers, however, the suppression has been imputed to pre-existing disease of the brain. But this is a supposition merely : for, in the great majority of cases, the kidneys and ureters offer evidence of having been the parts primarily aflTected. The experience of BoNET and IMonGAGNi, and of numerous later writers, fully support ihis conclusion. Besides, the cerebral nervous system can only indirectly influence the urinary secretion. That apoplexy, coma, or lethargy, should occur when the urinary secretion is suppressed, and the vascular system overloaded, may be readily imagined. The occur- rence of the disease, as a conse<]uence of organic change in the secreting structure of the kidneys, whereby their functions are more or less ob» APOPLEXY — Pathological States. tructed, has been illustrated by the cases recorded by Dr. Buight. 101. h. The sudden or more gradual superven- tion of apoplexy after the slow development of many of the o)-gunic changes which are desci ibed in the article on the Puthotogy of the Brain, — in some cases even when little cerebral disorder had previously been complained of; in others when more violent and even paralvlic symptoms had occurred, has already been noticed {§§ 45 — 48.), and has also received due attention in the article on Palsy. 102. V. The Pathological States consti- tuting Apoplexy have been in part compi-iseil in tiie observations offered on the principal kinds of apoplectic seizure, and on the modus operandi of the remote causes {§ 88.). There can be no doubt that much misapprehension has existed on this sub- • ject, and consequently that the treatment adopted h.is been frequently either nugatory or injurious. 'I'he opinion tiiat the d sease depends upon com- pression solely, has been too generally adopted, ■without considering the relation in which such compression, granting its existence, stands in to the causes which occasioned it, and the symptoms it produces. The idea that compression is indis- pensable to the existence of the disease has thus been empirically assumed, and acted upon in practice. A careful consideration, however, of the morbid appearances on dissection, in relation to the symptoms, and to analogous changes and their phenomena, have led me to infer that com- pression of the brain never can take place; that pressure exists in the great majority of cases, but even that it is not indispensable to the apoplectic state ; and that, although retarded circulation, whether caused by pressure or by any other slate, seems very fre([uently to obtain, it does not con- stitute the only morbid condition of the brain in apoplexy, — or, in other words, that apoplexy is not merely a disease of the vessels of the brain, although these vessels are either consecutively or coetaneously afl'ected. It should not, however, be overlooked, that even those who argue for compression being the cause, do not thereby im- ply, as their opponents would nr.ake it appear, that the tissue of the brain is actually compress- ible, but contend for the effects which pressure undoubtedly produces upon living and sensible parts. Therefore, although the brain is not com- pressible, it does not follow that it may not be affected by pressure, even independently of the obvious effects which pressure must produce on its vessels and the circulation through them. 103. Before entering further on this subject, it will be necessary to premise, that the circulation of the brain, like that of other important organs, is chiefly under the dominion of that portion of the ganglial sys'em of nerves which is ramified on its blood-vessels, and is distributed otherwise to the organ itself; and that an exhaiisted or morbidly depressed state of the influence those nerves exert on the circulation and maiiihst- , ations of the brain, with the cc.nsequent efl'ect this stale has upon' the capillaries particularly in dilating or congesting them, and disposing to their rupture, is the principal cause of, and often consiiiut(,s, the apoplectic seizure, — whether this influence emanate liom their chief centres, or from the local sources provided for the peculiar ofhces ol the organ, as the pineal and jiiii.itnry glands. 104. From this it may be inferred, that the proximate cause of a large proportion of the cases of apoplexy, not omitting even those which are attended with retarded circulation and ha;mor- rhage, is here imputed primarily to the condition of that part of the ganglial system which supplies the blood-vessels of the brain and the brain itself. That this actually is the case, is shown by the nature and mode of operation of the remote causes of the disease ; by the frequent affection of the functions of the brain previous to an attack; by the nature of the principal part of the pheno- mena accompanying the attack ; by the disorders observed subsequently, when partial recovery takes place ; by the tendency to relapse ; and by the morbid appearances which present them- selves on the dissection of fatal cases. 105. It is obvious, that the appearances in these cases are merely ultimate le>ions, as in all fatal cases of organic disease, and some of them even post mortem changes ; and yet, although the most advanced in the procession of morbid phenomena, they are often of themselves obviously insufhcient to occasion death. Leaving out of question those cases which are unattended with extrava- sation, the venous congestions, even admitting their existence, or the serous effusion, found in the other cases, are seldom such as to account of themselves for the event: inasmuch as they are frequently observed to an equal, or even greater, extent in cases where neither apoplectic nor co- matose symptoms had preceded death ; and are, as I have alieady shown (§ 88.), the result of the accumulation in the veins, after death, of the blood which had distended the arterial capillaries during life, and thus had been instrumental in abolishing the cerebral function^. 106. The circumstance of the morbid changes being insufficient to account for the result, had induced various writers, particularly Kortum, ZULIANI, ScHELLtR, SciI«FFER, and IIlJFELAND, to consider apoplexy frequently to proceed from the state of the nervous power, which they con- sidered defective; and led VVeickaiid to contend that it seldom depends upon compression. Dr. AiiEitciioMBiF, evidently influenced by the above considerations, refers the disease to interrupted cir- culation in the vessels of the brain, owing to pres- sure from the eft'u>ed blood, or to other causes. It is extremely probable that a retarded, if not an interrupted, state of the circulation vety generally obtains ; and that, partly in consequence, the sensific and motific powers are not generated. This, however, is only a matter of inference ; for we have no evidence that complete interrup- tion of the circulation of an organ or part can exist for any time, and its functions be i-o rapidly restored, as is sometimes observed in apoplectic seizures, or without gangrenous disorganisation being sometimes the result; and even if we admit this state of the circulation, we must still refer it to some antectdent and more general morbid con- dition. 107. That a congested state of the vessels and letarded circulation of the brain should, however, exist, owing to the diminished, or exhausted, or sup- picssed slate of that influence which undoubtedly actuates the vessels, may readily be conceded ; but that, even in the brain, ihctffu-ion of a small portion of blood should occasion pressure sufficient to inteirupl the circulation through it, recjuiies APOPLEXY— Pathology of. 97 fuilher proof. It seems more probable, and con- sonant witli facts observed in other parts of the body, tliat, in cases where the extent of effusion or external injury warrant the admission of pres- sure, this state gives rise to the apoplectic seizure, as much from the effects it produces upon the ganglial apparatus of the encephalon as from in- terrupted circulation through its vessels. 108. The pathological condition of the BRAIN, iherefore,inapoplexies, may be stated to be as follows : — a. That the tissue of the brain is not sensibly compressible ; but, being lodged in an imyielding case, it may be injuriously affected by pressure, chiefly by displacing the contents of its blood-vessels, altering the healthy relative propor- tion of their contents in each of the series of vessels, and impeding the circulation through a part or the whole of the organ : and that pressure exerted in one part, whether from distended ves- sels, extravasated blood, or the development of tumours, when reaching a certain pitch, will almost equally affect the whole of the organ, particularly when the pressure is great : the yielding nature of the cerebral structure, as well as the unyielding ca=e in which it is placed, must necessarily give rise to this result. 109. h. The various states of vascular impulse and action, impeded circulation in the veins and sinuses of the brain, and distension of its capil- laries, whether arising from the influence of the organic nerves on the blood-vessels, or from mor- bidly increased action, or from obstruction in the large veins, the lungs, or the right side of the heart, will, either individually or in partial con- junction, occasion the above effects, owing chiefly to the unyielding walls of the encephalon. HO. c. Owing also to this physical condition of the brain, the pressure of the atmosphere which influences the venous circulation of all other parts of the body, cannot modify in a direct or sensible manner that of the brain : and hence the cranial cavity must always contain nearly the same quantity of blood during life, the differences which occur being chiefly those of rapidity of cir- culation, and of relative proportion in each part of the series of vessels ; an increased quantity in the capillaries thus causing a proportionate dimi- nution in the veins. Owing likewise to this con- dition, the forcible injection and distension of one set of vessels will necessarily diminish the capa- city of, and obstruct the circulation through, the other ; and that part of the series which is nearest to the propelling power — the first to receive the impulse of the heart, and the nearest capable of being much distended by it — will, from relative situation, overcome the distension, and diminish the capacity of that beyond it. Thus the arterial capillaries of the brain will be the first distended from increased action of the heart and large ar- teries, and, by their distension, will soon overcome that of the veins, if it had previously existed ; and hence by compressing them, impede the cir- culation through them. 111. The frequent inflammatory character of apo- plexy, or the common occurrence of reaction, will be readily accounted for from what has now been stated ; for whether the attack commences with di- latation or increased action of the arterial capillaries, or with exhaustion or deficiency of their vitul power, or with retardation of the circulation through the veins and venous capillaries, the result will gene- VOL. i. rally be augmented action of the arteries going to the brain, extending itself in some measure to the heart, and this state will continue until the abolition of the cerebral functions shall have impaired or altogether destroyed, tiie heart's action. 112. d. Upon tracing the relation subsisting between the various causes of the disease, the symptoms and the appearances on dissection — upon remarking, as far as my own observation has gone, the frequency of change in the pineal and pituitary glands of apoplectic patients, I am induced to infer that functional lesion, or organic change, often commences in that portion of the ganglial system which supplies the ence- phalon and its blood-vessels ; and that, owing to exhaustion of its influence, the capillaries lose their vital tone, have their circulating functions impaired, become more or less dilated, and are disposed to rupture. 113. e. When apoplexy proceeds from causes of an obviously exciting nature, or from sur-actioii of the heart and arteries, it seldom occurs until a certain degree of exhaustion of the vital tone of the capillaries has taken place, whereby they become dilated and congested, so as either to press the encephalon against its unyielding case, and, owing to the pressure, impede the return of blood by the veins ($§ 109, 110,), or to give rise to extravasation, which, when considerable, has a similar effect ; injection of the arteries of the brain and its membranes resulting equally from both, owing to the obstructed circulation through the veins. 114. y. Where pressure unequivocally exists, it may also benumb or suppress the vital in- fluence of that part of the ganglial system which supplies the encephalon, thereby heightening the effect produced both on the organ itself and on its circulation. 115. g. There are cases of apoplexy that pre- sent the phenomena, which have given rise to the appellation of weak apoplexy, and which occur from depressing causes, operating upon exhausted states of the encephalon and frame generally. These causes directly suppress or abolish the vital in- fluence of the organic or ganglial nerves of the brain, and consequently the cerebral functions, without producing further change of its vascular system, than retarded circulation in so slight a degree, as not to amount to great distension and compression, and without occasioning extravasa- tion of blood, although extravasation often does supervene to this state, giving rise to pressure and its consequences, so as to heighten or prolong the primary lesion, and to occasion paralysis. 116. h. In cases proceeding from depressing causes, acting on a plethoric habit of body, the effect is also more or less directly produced on the organic nerves of the brain, whereby the capillaries lose their tone, are congested and dilated, or ultimately ruptured, and the return of blood by the veins retarded, whilst the smaller arteries and capillaries are more and more en- gorged by the impetus of the blood in the large arteries, the pressure thereby occasioned suppress- ing the cerebral functions as in the other cases. 117. i. W'hen the disease proceeds primarily from impeded return of the blood from the head, the congestion only commences in the veins; but, as the action of the heart and arteries con- H 98 APOPLEXY — Treatment of. tinues, the capillaries are soon afterwards injected and dilated ; and, in proportion as they enlarge from the distending power to which they are more' immediately subject, the veins are compressed, owing to the physical condition of the brain, more or less emptied, and admit of the greater dilatation of the capillaries, some one or more of which may be even ruptured from the increased action and distension. 118. k. In cases accompanied with h(Enwrrhnge, and consequent laceration of the cerebral struc- ture, the deprivation of function may be as much an effect of suppression of the vital influence of the organ, owing to the shock produced by the injury, as of pressure upon the veins, and con- sequent injection of the arterial capillaries. In cases of this description, the state described above ($ 112. (i.) may exist, and be followed by hse- morrhage and laceration of the part in which it occurs, producing the abolition of the cerebral function, great vital depression, sickness, and other signs of dangerous injury sustained by a vital organ. The pressure occasioned by the haemorrhage will be followed by obstructed cir- culation, and, under favourable circumstances, by increased action of the arteries and heart to overcome it. 119. I. In apoplexy presenting on dissection congestion and serous effusion, these states may be often considered rather in the light o(post mortem changes than the pathological states which had existed previously to death ; it may even be pre- sumed that the distension and congestion of the capillaries, chiefly the arterial capillaries of the organ, had overpowered its functions ; and that, as in other parts, when the injection of the blood into them no longer is continued, and the distend- ing cause has ceased to exist, they have gradually discharged their contents into the veins, which now had space given them for dilatation, owing to the emptying of the capillaries ; and thus the blood has passed into the veins soon after death. 120. m. Ilaemorriiage in the brain may result from the following states : — a. Exhausted vital energy of the ganglial organic nerves supplying the vessels and organ favouring their distension and rupture : |3. Diseased state of the coats of the vessels themselves : y. Organic change of the cere- bral structure, extendingto, or influencing the state of, the vessels ramified m it : 5". Increased impetus of blood from augmented action of the heart and larger arteries, combined with either of the other states : e. Impeded return of the blood from the head, similarly associated. 121. n. The vital energy of the organ, resulting chiefly from the mutual influence of the ganglial and vascular systems, may be so far aflPected as to occasion the attack with all the organic changes observed in fatal cases ; and sometimes in such a manner as to constitute the disease, even without these changes having taken place ; although they are most frequently produced, thereby heightening the primary lesion. 122. o. As corollaries from the foregoing, I infer that apoplexy often originates in exhausted or supj)rcssed influence of the ganglial apparatus of the cncephalon, with a congested state of its arterial capillaries, or impaired condition of their circulating functions, and still more frequently in extravasation of blond, either or all of which changes must necessarily exist to the extent of suppressing the functions of the organ ; and that, as apoplexy does not uniformly depend upon the same pathological state of the nervous influence and circulation of the brain, particularly in respect of the kind or degree of vital depression and vas- cular reaction, a due regard ought therefore to be had to the nature of the change in each case, as far as it may be ascertained, and a treatment strictly appropriated to it adopted. 123. VI. Treatment. — The treatment of apo- plexy has long furnished subjects for discussion, not only as respects the more subordinate means of cure, but also as regards the most energetic mea- sures and the intentions with which they should be employed. This is evidently owing to the difference which has been long acknowledged to exist in the pathological states constituting the disease, but which has recently been questioned. Without recurring to the changes so fully de- scribed above, I may remark, that a person is seized witii apoplexy, and, instead of being blooded, is treated with stimulants and restora- tives, and yet he recovers without paralysis having supervened. Another person is blooded largely, and he recovers. A third is treated in a similar manner, and he becomes hemiplegic in the course of the attack ; and a fourth is also blooded, and he dies. Now these are very common occur- rences, and point to very important considerations, which I will pursue a little further. A thin, spare, and debilitated man staggers as he walks, and falls down in the street, with pale countenance, feeble pulse, and laborious or slightly stertorous breathing. He is blooded by the nearest medical man almost immediately, and recovers. A large man, of a full habit and lax fibre, suddenly be- comes apoplectic, and is instantly treated with stimulants, and volatile substances held to the nostrils, and his consciousness and voluntary mo- tion are restored in a few minutes. One practi- tioner of large experience states, that he never draws blood from a patient in apoplexy, excepting under peculiar circumstances, and avers that he is more successful in his treatment than those who do. Another considers that when one full blood-letting fails of giving relief, no benefit will be derived from pushing it further, but much risk of giving rise to paralysis. A third physician equally eminent and experienced, confides in blooddetting almost solely, and carries it often to a great amount ; and a fourth, whilst he discards depletion, trusts to stimulants chiefly. 124. I3ut if we examine into their success, we shall find, perhaps, that some difference as to degree may exist ; and that, whilst many patients seem benefited, others experience no relief, if they be not even actually injured, by the kind of prac- tice thus exclusively adopted. There is, however, one part of the treatment which is more or less adopted by all; this is the use of purgatives; which, when judiciously administered, are the most generally applicable and beneficial of all the means usually advised. Were it possible to ascertain during life the exact pathological con- dition obtaining in the various case s of apoplexy, and to convey a correct description of the signs by which each may be known, then the basis for a rational method of cure could be firmly laid ; but the skilful practitioner is guided in the treat- ment he adojjts by considerations, circumstances, and appearances, which scarcely admit of de- scription; and all attempts to impart his know- ledge comes far short of his wislies. 125. The metliod of cure in apoplexy neces- sarily divides itself into : — 1st, Tliat which is required when an attack is threatened, in order to prevent it, — or the propliylactic treatment; 2d, The means which are to be adopted wlien tlie disease is developed ; and, 3d, The plan which should be subsequently pursued, with a view of perfecting recovery, and preventing a return of the disease, — or the consecutive treatment. 126. i. The Treatjient which may be em- ployed TO PREVENT AN AtTACK WHEN IT IS THREATENED. — It is difficult to State the means which may be resorted to with this view, as they ought to be directed with strict reference to the circumstances of the case ; which are almost always difTerent, and, not infrequently, even op- posite. A strict regard must neces^a^ily be had to the habits, age, and constitution of the patient; the predisposing and exciting causes ; and tlie evidences of previous adment or existing disorder in remote but related organs. The character of the countenance ; the pulse, particularly in the carotids ; the temperature of the head ; the state of the abdominal functions, secretions, and dis- charge*, must be our chief guides. It should not be overlooked in this stage, any more than when the disease is fully formed ; that it may result from nearly opposite states of the vascular action of the brain, and of the circulating system gene- rally ; that, although the majority of cases are attended with that appearance of countenance, and action of the arteries, which warrant the in- ference of existing congestion, retarded circulation, or even increased vascular action in the brain, — there are others, in which the external characters of the head, the face, and action of the carotids, would lead us to infer, either that the vital energy of the organ is so far depressed as to give rise of itself to abolition of the cerebral functions, or that the extr.ivasation of blood and laceration of the structure of the organ lias occasioned such a shock to its vitality as to be followed by the same effect on its functions ; vascular reaction some- times supervening in either case, and thus im- parting to the attack similar characters to those possessed by seizures which originate in, or are, from their commencement, attended with, vascular turgescence or increased action. 127. In the premonitory state of the disease, it scarcely can be admitted tliat extravasation or its consequences has occurred, unless in those cases preceded by paralysis ; but the signs of incipient congestion, or increased action, are frequently present ; whilst also, in many otiier cases, the symptoms of exliausted or depressed vital power are manifest ; this latter state being more fre- quently antecedent to congestion of the capil- laries than is generally supposed, although the fully formed disease may evince inordinate action, with all its usual consequences. Even in the early stage of an attack, this state of the vital power of the organ will often constitute so import- ant a part of the disease, and will yet be attended only by simple congestion and retardation of the circulation, that the use of stimulants may then be beneficially resorted to ; whilst soon afterwards, when reaction has supervened, they would no longer be admissible, large depletions, &c. being then required. APOPLEXY— -Treatment of. 99 128. We should, therefore, endeavour to in- terpret correctly the origin of the premonitory symptoms, and prescribe accordingly. It' the countenance is full or flushed, the eyes promi- nent or suffused, the pulse of tlie carotids full or strong; or even if, with this state of the counte- nance, they are natural; blood-letliiis;, genevAl or local, but preferably cupping on the napi' of the neck, should be prescribed. If these symptoms have come on after the disappearance of hajmor- rhages and discharges, this treatment is still more' imperatively required, aid should be directed to tlie restoration of the pre-existing disorder, assisted by other means, such as irritating purgatives, re- vulsants, and external derivatives. 129. When, on the other hand, the action of the carotids is weaker than natural, the countenanc sunk, and the head cool, &c., oppo.site measures are called for: restm-atives, antispasmodics, and stimulants are here of service, but their use re- quires caution ; for if the pulse in the carotids is full, or strong, or at all above the nitural standard, although the countenance be sunk or pale, and if the attack threatens to commence " ith para- lysis, stimulants given internally, or eve:i the outward use of them, as volatile substances held to the nostrils, would be hurtful. In such cases, blood-letting must be resorted to; and a purgathe of quick operation, assisted by enemata, exhi- bited. 130. There are few cases, presenting even the premonitory signs of an attack, that will not be benefited by a judicious use of purgatives, parti- cularly such as are suited to existing disorder of the digestive and biliary organs. In those cases which evince a disposition to vascular excitement of the brain, — where the premonitory signs are accompanied with plethora, heat of the head, injection of the conjunctiva, and flushed coun- tenance,— after depletions and purgatives have been resorted to, the potassio-tartrate of antimony, or James's pou-der, given in moderate doses, and combined with saline medicines, so as to act gently upon the skin or the bowels, and continued for some time, has always appeared to me pro- ductive of advantage : but it is only in such cases that antimony is useful as a prophylactic ; where, also, digitalis may be given with the view of lowering the action; but its use in these cases requires great caution. 131. When the incipient symptoms present much of the character of vital exhaustion of the brain, the combination of purgatives with gentle stimuli and vegetable tonics and stomachics has proved the most successful in my practice. If the symptoms appear after the suppression of haemorrhoids, aloclic cathartics, or the extract of colnc^nlJi, combined with calomel, are amongst the best that can be employed ; as they tend to induce, by their action on the rectum, a return of the hemorrhoidal affection. 132. In threatened apoplexy froui congestion and impeded circulation through the lungs, heart, or liver, local blood-lettings and purgatives are necessary. In cases characterised by a combi- nation of either of these states with exhaustion or debility, the abstraction of a small quantity of blood by Clipping, and afterwards dry-cupping, issues, or blisters, are sometimes very service- able. 133. The inser ion of setons or issues in the H 2 100 APOPLEXY — nape of the neck, or the use of ths tartar emetic ointment ; and, in very urgent cases, large issues in the scalp of the occiput, particularly when the precursory sympt 5ms evince a paralytic charac- ter ; cold-sponging the head night and morning, or the shower-bath, with a free state of the alvine secretions and excretions, especially where there is a disposition to congestion, or increased action in the brain, and after blood-letting has been employed ; stimulating or irritating pediluvia, or a blister applied to the nape of the neck, and kept open for some time, in similar cases and preceded by the same measures, constitute important items of the preservative treatment. 134. The patient ought carefully to avoid all the predisposing and exciting causes of the disease (^^ 77 — 87.), particularly crowded apartments, the application of cold to the feet, and violent mental emotions. He ought to sleep with his head and shoulders somewhat elevated ; and rise early in the morning. The diet should receive particular attention : it ought to be spare in all cases accompanied with plethora ; but not too low, when this state of tlie vascular system does not exist, and when the vital energies of the brain are already depressed or exhausted. It should, in these latter, be of moderate quantity, and di- gestible. In all cases, tranquillity of mind and body ought to be carefully preserved ; and sti- mulating beverages avoided, with very few ex- ceptions, which are to be made in favour of those only who present great cerebral and constitutional exhaustion. The beverages for these should be gently strengthening, but not heating, and used in moderation. 135. ii. The Treatment of the Apopiectic Attack. — Tiie patient should be carried into a well-ventilated and spacious apartment, and placed with his head and shoulders very consider- ably raised, or in a sitting or semi-recumbent posture, with every thing removed from his neck. Directions should also be given to have hot water in readiness, llis countenance, state of the eyes and pupils, the degree of fulness, flushing, or pallor of his face, the temperature of his head, state of the pulse in the carotids, and condition of his limbs in respect of sensibility, capability of motion upon their being pinched, &c. ouj^ht to be carefully examined ; and, according to the evidence thus obtained as to the state of internal lesion, the propriety of depletion, and the extent to wiiicli it is to be carried, should be promptly decided on. 136. A, Treatment of apoplexy unattended by depression of vascular action, or by marked ex- haustion of vital power. — a. If the pulse be strong, or full, and especially if the countenance be flushed, livid, and tumid, general blood -lettitig to a large extent, or according to its effect, is to be instantly employed. Much discussion has taken place as to the propriety of opening a vein of the paralysed or non-paralysed side, when paralysis accompanies the attack. AuiavEus, Valsalva, MoiiGAOM.and Cullen advise it to be performed in the sound side, whilst lUoi.ivi prefers the other : this is, however, a matter ot little im- portance. 137. The n' xt points are the extent to which 1 Jo d-letting may be c;irried, and how fnr certain states of the frame and pulse warrant the ])r,ic- tice. In robust, plethoric, and full-living pert;oiis, Tueatment of. particularly when the attack has proceeded from exciting causes, and paralysis is not present, thirty or forty ounces may be abstracted at once ; and the operation may be performed a second or even third time to a somewhat less extent. When, however, the habit of body is spare, the peison far advanced in life, the pulse not full or strong, or little fuller than natural, the heat of the iiead not increased, and the countenance neither full nor flushed, we must be cautious not to carry it too far. In cases of this kind, local depletions, particularly cupping between the shoulders, or on the occiput, and leeches to the neck and behind the ears, seem preferable. Age is no reason against venesection, if the symptoms indicate its propriety ; but very old age, even when the oper- ation is otherwise indicated, is a strong reason for great caution in its performance. In aged persons, local depletions are more serviceable ; but even these, employed either indiscriminately or too largely, may occasion a very dangerous, or even fatal, collapse. 138. An intermitting or irregular pulse has very justly led practitioners to hesitate as to the em- ployment of blood-letting. But a single symptom is not to guide us in the use of this, or any other, remedy. If, conjoined to either of tliese states there be slowness or fulness of pulse, stertorous or strong breathing, constitutional vigour and ful- ness of habit, tumid, flushed, or livid counte- nance, blood-letting, even to a very considerable extent — either general or local, or both — may be practised ; but when, with irregularity and inter- mission, the pulse is also small, we.ik, or quick, the countenance pale, the temperature of the head either not increased, or somewhat depressed, and the res])iration weak rather than strong, blood-letting would be highly injurious : a very opposite treatment is then called for. 139. In cases where it is a matter of doubt whether or not general blood-letting should be carried further, or be adopted at all, local blood- letting, to an extent which circumstances will point out, may generally be still employed, and often with great advantage. Vascular depletion being indicated in one form or other, the situation in which it should be performed next remains to be considered. The temporal artery has lieea recommended to be opened by some : others advise the jugular vein. When the disease arises from congestion, and when the face is livid, the attack strong and the operator expert, the jugular vein may be opened, as sanctioned by Vaisalva, MOHGAGNI, lllESTER, FrIEND, LaNCISI, StOLL, BuRSERi, ;md Portal. But undue pressure of the vein, either before or after the operation, must be avoided. Ideeding from the feet, they being plunged in warm water, has been very generally ])rescribed by Continental pliysicians ; and, ii those cases which have occurred after the dis- appearance or retention of ha;morrhages and periodical discharges, or from metastasis, the practice is very judicious. 1 40. h. Local depletions in this d"se;i: e are usually directed on the temples, na; e of the neck, or be- tween the shoulders. I ])refer the lattersituation, as well as c»/);)(Hi,'-, to the use of leeches, — the firmer being much riuicker and more decided in its operation. Hii'i'Ockati-s, Aretaus, and ]\Ion(;A(;M advised cupping to be performed on the occiput: and 1 unequivocally agree in the practice. If leeches are applied, the neck, occi- put, and behind the ears, are the best situations. Lancisi and CnuvEiLniEK advise them to the inside of the nostrils, after general blood-letting, particularly in apoplexy preceded by epistaxis ; and Waltiier (De Apop., p. 88.), to the veins near the canthus of the eye. In cases of sup- pressed haemorrhoids or menses, the application of leeches to the anus, the anterior part of the insides of the thighs, particularly after blood-letting from the feet, certainly is frequently productive of ad- vantage, even although it very often fails of re- storing the suppressed evacuation. 141. Some physicians rely almost entirely on blood-letting, whilst others too frequently discard it. Others more rationally view it as a most im- portant, and a frequently, but not an universally, required remedy. It is by not attending to the pathological states, which I have endeavoured to point out {§ § 108 — 122.), and to the changes of vascular action which take place during the attack, that sucli difference of opinion exists, and the in- discriminating practitioner is led to the injurious adoption of one mode of practice only. Among those who prescribe blood-letting almost unre- servedly, and to a great extent, I may adduce the respected authorities of Cullen, Cheyne, PiTCAiRN, Cooke, and Abehcrombie ; whilst the injurious effects of the practice in many cases, and its applicability to certain states of the disease only, have been ably argued for by KlRKLAND, FoTIIERGILL, HeBERDEN, BaHBETTE, and Darwin. There can, however, be no doubt of the propriety of having recourse to vascular depletion in the states of apoplexy now under consideration, — the general character of the symptoms, circumstances of the case, and the effects produced by the first bleedings, being our chief guides as to the extent to which it should be practised. But in the forms of apoplexy clia- racterised by marked deficiency of vital power and action, or sometimes at the commencement of the seizure, when the symptoms, owing to the severe shock sustained by the brain, very closely resemble those of concussion, and before the powers of life recover themselves, and react (§ 111.), blood-letting would generally be attended either with fatal sinking, or with effusion, giving rise to hemiplegia where effusion had, as yet, not taken place, and with a fatal increase of it, in some where it had already existed. 142. c. Next to blood-letting, acfii'e p?/r^airt.3 j. ; Soda; Ui-boratis gr. X. (vel Magnesia; ;)j.) ; Conl'ectionis Senna;, Syrup. Zin. giberis, aa .jj. M. Kiat Electuaiiuin, pro dose, hora somni, alternis noclit)US suinenduni. 109. When the disease is connected with the gouty diathesis, vegetable diet, the carbonnles of the fixed alkalies, with the extract of taiaxacum or the preparations of aloes, the occasional use of an active cathartic, and the other prophylactic measures recommended in the article on Gout, are requisite. In all cases, as much benefit will now accrue from a strict atten'.ion to regimen and diet, as from medicine. The food should be light and digestible, of very moderate rjuanlity, chiefly farinaceous, and taken at regular hours. Suppers eliuuld be avoided, or be extremely light, and taken a considerable time before the usual hour of repose. Fish, and ripe fruits, may be partaken of in moderation ; and the waters of Cheltenham occasionally tried, or the following used as a substitute : — No. 31. R Magnes. Sulph. ? ss. ; Potassa; Sulph. 3 ij. ; Infus. Kos« Co. et Mist. Campliori3E aa 3 iijss. M. Ca- piat Cocli. iij. ampla primo mane quotidid. 170. After attacks of the more asthenic states of apoplexy, a more tonic regimen than that directed above may be adopted ; but it should be conjoined with the same attention to the digestive, secreting, and excreting functions. Attacks of this description most commonly proceed from de- pressing or exhausting causes, which ought either to be avoided or counteracted ; and when they are not characterised by plethora, or disposition to increased action, gentle tonics combined with aperients, a light strengthening diet, the occa- sional use of the preparations of strychnine, or iodine, as recommended in the article on Palsy, and the mmeral waters of Bath, Leamington, or Buxton. The following may also be occasionally taken : — No. 32. B Potassa; Sul|)iiatis 3 ij. — 3 iij. ; Infus. Rosse Co. 5 vijss. ; Acidi Sulphur. Arom. 3 j. ; Tinct. Aurantii Co. .5 ss. M. Capiat Coch. iij. ampla primo mane. 171. In all cases of the consecutive treatment, the progress of the paralytic or hemiplegic afTec- tion towards removal should receive attention. In the more favourable cases, as the period of attack recedes, first sensation, and afterwards motion, return in the paralysed limbs ; and ge- nerally the lower extremity experiences the amendment before the upper. As recovery pro- ceeds, the patient should always wear his hair cut short, and sponge his head with spring water night and morning. In summer he may use the shower bath daily, if he be not far advanced m life or much debilitated. As nmch of the treat- ment described in the article Palsy, as may suit the circumstances of the case, may also be adopted for the removal of this common sequela of the attack. (See also Asphyxy, and Poisons.) BiBLlOGiiAFHY. — Hippocrates, srtp/ vova-uv, lib. iii. p. 488. et Aplior., sect. vi. 67 ArctiEus, De Sign, et Caus. Diut. Morb , 1. i. c. 7.; Curat. Acut., 1. i. c. 4 Galen, De Locis Atl'ect. 1. iii. c. 10. \i,—/Elius, Tetral). ii. Serm. ii. c. 27. — CceUus Aurelianus, Acut. Morb. 1. iii. c. 5. — Ori- basius, Synop. 1. viii. c. G. — Furesius, Opera, 1. x. obs.Cy. et seq Avicenna, Canon. I. iii. tr. 5 Schenck, De Apo- plexia. Jen. 158'2 — Wepjcr, Anat. de Apoplcxia, p. 437. —lionet, Sepulcliretum Anat., 1. i. sect. ii. obs. 37. ST. — Sj/dcnhtDii, Opera, p. fi/V. — liaglivi, Prax. Med. i. c. D /'idl/inck, l)c Apoplcxia. Jen. ItiSO Lancisi, De Siibit. Mort., p. I'iO. — Seiz, Apop. Fern, et Mort. Uruuit. Morb. All. 1714 — Murgagni, De Sed. et Caus. Morb., epist. ii. iii. V. xi. xxvi. Ix. Ixii, Ixiii, et Ixvii. — Hoffmann, l3e Apoplexia. HaliE,1728; et Opera, sup. ii. p. 2.— JmhcAcb, De Apoplcxia ex Podagra txetrograda, &c. Giess. 1733. — Miisgruve, De Artiiritide Anomala, c. 1.5. — Borseri, Do Apoplcxia, p. 82 Saitvages, Nosologia Method., t. i. p. 818 HilislicheUi, Tratlato dell' Apoplessia. Kom-dB, ]7M.—Ilang, ill Act. Iteg. Soc. Med. Havn., vol. i. p. 118. y.'il — Weielcurd, Vermischte Schriften, v. i. et ii. p. 21. c/sc!. — Folliergill, in Mcd.Observ. and Inquiries, vol. vi., and Woiks, vol. iii. p. •>U. — Selle, Med. Clin. p. 40.— Seluirig, Sperniatologia, p. 2IJ1. et seq. — IVaii/ier, De Scarilicatione Oecipitis, plur. Cap. Morbor. Auxilio. Lips. 1741 — Piteahn, Klein. Med , 1. ii. c. 2 CuUen, Outlines, &c., vol. iii. p. 182 J. Hunter, On the lllood, &e. 4to. ed. p. 213 Buerhaave, De Morb. Nervorum, p. G40 — Dicmerhroeic, De Morb. Capiiis, N. i2 De Jlacn, De Apoplcxia. Leid..l745 ; et Ilat. Med., p. iv. c. 5. — Sloit, Ratio Medendi, p. iii. 133.; et Pradcct., p. 3G7. — Mangold, Apoplexite plures, praiter Sanguineam et .Serosiiin,&c. ICrf. 170.5. —Marqiiet, Tiaitede I'Apoplexie. Paris, 1771) — Nieiiiajtn, De Apoplcxia; Path, et Therap. llaKx', \n2.—lj,-utaud, llistor. Anat. Med., 1. iii. Ob. 177. 203, \c — 'J'/iili/ti/ix. iVlcd. und Chir. Reinerkuiigen, p. 7G (luiinti, Aniiiiadvcrsiones, cap. l.— 1'enadn, Os- hcrv.i/.ioni v. Wcigd's Hal. Hibl. iv. b. i. p. IliJ llasler. Von den Artcn und llrsai-hcn dcr Schlagdiissc. I.aiidsh. 1787 — y»«fe'f«/(yMM, Do Apop. cjiisquc Spec. Var. Leid. APPETITE, MORBID. 107 1793. — Kirkland, On Apoplectic and Paralytic Affections. Lond. 1792 Andrews, On the Apoplexy. Phil. 1793.— Heil. De Locis in Apop. AfTectis. Hal. 1795 ; at Memorab. Clin., fas. iv. n.4. — I'loucqucI, De Vi Vital! in Apoplexia. Tub. \1'M.— Portal, Anatomie Medicale, t. iv.p. 99. ; et Sur I'Apoplexie. 8vo. Paris, IHIl Heeler, Brownii Sent™, de Apop. Examcn. Erf. 1800 Craivfoot. Ob.serv. on the Opinion that lixtrav. is the Cause of Apop. &c. Lond. 1801. — Boucher, Journ. de Medecine, t. xlviii. p. 7fi. Darivin, Zoonomia, vol. ii. p. 402 Fodere, DeApoplexia. Aven. 1808 Montain, Traiie de I'Apoplexie. Paris, 1811. — Chcync, On Apoplexy and Lethargy. Lond. 1812. — Riobe, Sur I'Apoplexie, et Epancliement de Sang dans le Cerveau, &c. Paris, 1814. — Cheyne, in Dublin Hosp. Kep., vol. i. p.Slii.— PoK'f/, On the Pathology ofthelJrain, Wed. Trans, of Lond. Col.olPhys., vol. v. p. 198. 181-'i.— Novlin, Traite de I'Apoplexie, &c. Paris, 1819— Coo/ic, On Nervous Diseases, vol. i. Lond. 1820 Dunctm, in Ellin. Med. and Surg. Journ., vol. xvii. 1821. — Craigic, in Ibid., vol. xviii. 1822. — J. Co]iland,m Lond. Med. Repos., t. xviii. p. 20. — Scrrcs, Nouvclle Division des Apoplexies, Annuaire Med. Cliirurg. des Hop. Paris, 1819; et Anat. Conip. du Cerveau, t. ii. Paris, 182G. — Brichelcau, Sur I'Apop. in Journ. Complement, du Diet. des Sciences Med. t. i. p. 129. 289., et. t. iv. p. 17. Paris, 1819 J- Frnnk, Interp. Clin., vol. i. p. 139. ; et Praxos Med. Universa; Prsecep., pars ii. vol. i. sect. i. p. 330. et seq Krilof, Journ. des Progres, &c., t. xii. p. 248. — Johnson's Miv dico-Chirurg. Review, voi. i. p. 1.; Edin. Med. Chirurg. Journ., vol. xxvii. p. 83. — Good, Study of Med., edit, by Cooper, vol. iv. p. 025 Prichard, On Diseases of the Nervous System. Lond. 1822. — Lallcmand, Recherches A at. Path, sur I'Enccph. et ses Depend. Paris, 1820 — 1829. — Rochoux, art. Apoplexie, Diet, de Med., t. ii. — Keltic, in Med. Chirurg. Trans, of Edin., vol. i. — Mills, On Morb. Appear, in Disord, of the Brain. Dub'. 182().— Bouillaud,Uem. dela Soc. Med. del'Emulat.,'t. ix. p. 147. Paris, 1826. — Hooper, On the Morbid Anatomy of the Brain. Lond. I82G. — Abercronibie, Researches on Dis. eases of the Brain, &c. Edin. 1828. p. 201. — Cruveilhier, art. Apoplexie, Diet, de Med. et Chirurg. Pratiq., t. iii. Paris, 1829 Bright, Medical Reports, vol. ii. p. 266. et seq. Lond. 1831 Kreyssig, Encyclopadisches Worterb. der Med. Wissen., b. iii. p. 94 Series, Edin. Med. and Surg. Journ., vol. xxvi. p. 83 Mitchell, in Ibid. vol. xxix. p. 96 H. Clutterbuck, in Cyclop, of Pract. Med., vol. i. p. 120. APOPLEXY OF New-born Infants— 1. Ge- nerally proceeds from a protracted or difficult partuiition, particularly when the infant is large and plethoric, or when the chord has passed around the neck, occasioning both interrupted circulation in the chord, and obstructed return of blood from the brain. The apoplectic state in new-born in- fants is accompanied vvith tumefaction of the face, head, and neck, which, with the whole surface of the body, is generally of a bluish or violet colour. 1'he muscles are flaccid, the limbs flexible, and the body warm. The pulsations of the heart and of the chord are generally obscure, or not to be felt ; respiration is suppressed ; and death soon takes place, in extreme cases, if judicious means of restoi ation be not resorted to. 2. Upon examination of fatal cases, the vessels of the encephalun are engorged with blood ; and occasionally blood is extravasated in the sub- stance of the brain, or between the membranes. The lungs are also generally congested. It is evident tlmt the pressure of the turgescent vessels and extravasated Ijluod upon the brain, and origin of the respiratory nerves, prevents the re- spiratory actions from taking place, and that all attempts to excite respiration will be inefleciual until the pressure is removed. The umbilical chord should therefore be immediately divided and allowed to bleed to the extent of two or three spoonfuls, according to the size and strength of the infant. When the apoplectic state is oc- casioned by congestion of the vessels merely, respiration will take place as soon as the vessels are unloaded, if no mechanical obstacles to the entrance of air into the lungs exist, ftlucosities should be caiefully removed from the throat. mouth, and nostrils ; and, if the respiration does not spontaneously take place, insufflation of the lungs, as recommended in the article on Asphyxy of New-horn Infants should be performed. 3. ^Vhen the circulation is so torpid that the blood will not flow from the portion of umbilical chord attached to the infant, the little patient should be placed in a warm bath, rendered more stimulating by some salt, or by a little mustard ; the portion of chord attached to the abdomen, or the abdomen itself, may be pressed momentarily, at several times, and in the direction of the divi- sion. If these means fail of procuring blood, one leech may be placed behind each ear. In some cases the apoplectic symptoms return after respi- ration has been established. This is generally ow- ing to some interruption to the circulation through the lungs. In these cases of secondary attack, the application of one, or generally two leeches, placing the body or the lower part of it in a warm biith, and, if requisite, inflation of the lungs, and the other measures advised in the article on Asphyxy, must be resorted to ; and they will be successful if the case admit of recovery. Bibliography — Gardicn, Traite d'Accouchemens et Maladies des Femnies et des Enfans, t. iii. p. 130. — Desonneaiix, Diet, de Medecine, t. xv. p. 163. APPETITE, MORBID. Classif. 5. Class, Local Diseases ; 2. Order, Depraved Appetites (Cullen). I. Class, Diseases of the Digestive Functions ; L Order, Affecting the Alimentary Canal (Gnod). II. Class, I. Order, (Author). 1. Defin. — Excessive craving for food, or desire for improper substances. 2. In this genus may be included two species, viz. 1st, Excessive or insatiable craving for food ; and, 2nd, A desire for improper substances, or what is not food. These states of function occur in practice variously associated ; and although ap- parently different in themselves, yet they are often individually connected .with similar states of the constitutional energies, and dependent upon nearly the same state of lesion, whether functional or organic. It would seem that mani- festations of function often differ mostessentially, in different persons, or under different circumstances, owing to causes which are so slightly dissimilar as not to admit of distinction or even, in some cases, to appear very nearly the same. In all, or the great majority of cases, belonging to these forms of morbid function, the general pathologi- cal states of the sysiem are nearly ihe same ; the difference, even when it is most marked, being chiefly referrible to variations in grade, and to states of the stomach, in respect of its sensibility, its .secretions, tonic contractions, and states of its villous m'embrane, which can only be matters of inference, but seldom of demonstration. As re- gards their nature, these affections are much more Irequently sfimptomatic of lesion of function of structure in some other organ, than idiopathic, or constituting primary disease of the stomach itself. 3. Spec. I, Insatiable Appetite. — Syn. Bulimia (from 0ov, the augmentative par- ticle, and Xi/uoj, hunger), Fames Canina, Limoiis avens. Good. Bulimus Poli/phatria, Lycorexia, Cynorexia, Auct. Lat. Faim Ca- nine, Fr. Der Heisshan^er, Ger. Dyspepsia Bulimia, Young. Gluttony, Canine Appetite. 4. Defi.v. a cruiing Jor food beyond the 108 APPETITE, MORBID — Causes op. natural wants of the system, sometimes most ex- cessive in degree. 5. i. Varieties. An inordinate appetite ii some- times observed in the course of fevers and other acute diseases, particularly in convalescence from them ; and in the progress of a number of chronic diseases. It is not infiequent in cases of extreme exhaustion, from whatever cause ; and it may depend upon an acquired habit. But in order to consider it with some degree of precision, I will oflfer some remarks, 1st, upon habitual indulgence in an excessive quantity of food, or gluttony ; 2d, an insatiable appetite from exhaustion; 3rd, on the excessive appetite, which, from the extreme vo- racity of the patient, has been called canine ; and, 4th, on the voracity which is followed by vomiting. These constitute varieties of nearly the same disease. 6. A. Habittially excessive appetite, the Bulimia Helticonum of Cullen. — In some cases, the ex- cessive indulgence of food has been of so long duration, and seemingly attended with so good a state of the general health, as not to appear in the light of a disease; but the results ultimately are the production of so great vascular plethora, and disorder of the secreting' functions, that, as soon as the vital energies begin to languish, apo- plectic, paralytic, or other maladies supervene. This variety of morbid function may be hereditary, but it is oftener acquired. It is not infrequently observed in persons, originally of a strong con- stitution, who have indulged in large and frequent meals from having little else to engage their minds ; and thus the vital energy has become concentrated towards the stomach and the rest of the digestive organs, exalting all their functions. Persons of this description usually become large, bulky, or corpulent ; and if they take much exercise, the great indulgence of their appetite may not materi- ally shorten their lives ; but when sedentary habits and indolence are conjoined with it, apoplexy and organic disease of the liver, stomach, bowels, &c. are the common results. 7. JB. Inordinate appetite from exhaustion. — This is often a symptom of other diseases, and is chiefly dependent upon altered sensibility of the nerves of the stomach, proceeding from weakened vital power. In many cases, however, it appears as the chief ailment, as after great fatigue of body and mind ; after excessive venereal indulgences ; in cases of great emaciation, sometimes without any evident cause ; and during convalescence from fevers and other acute diseases. It is very often observed as an attendant upon organic dis- eases of the stomach, pylorus, mesenteric glands, liver, uterus, &c. It has also been remarked in cases where due nourishment could not be con- veyed into the system, owing to disease of the absorbent system ; and it is frequent in the last stages of chronic maladies, when about to termi- nate fatally. In many of such cases the craving for food is attended with a distressing feeling of inanition, sinking, aud faintness. Some of the cases of excessive appetite that occur in preg- nancy, or from the presence of worms, may also be referred to the debility and altered sensibility of the nerves of the stomacii. And tiiose which accompany inanition fiom a defective siipjjly of cliyle to the blood, may be attributed partly to the fame cause, and partly to the instinctive wants cf the system. 8. C. Voracious or canine appetite, the Buli- mia Syncopalis of Cullen. — Uhis extreme form of the disease is generally dependent upon some organic change of the stomach ; but this is more a matter of inference than of observation. The chief seat of disease may even be some other organ. The quantities of food, particularly ani- mal food, cooked or raw, taken by some persons afflicted by this disease, are truly surprising.* One of the most remarkable cases in record is that published by M. Percy (Diet, des Sciences Mtd., art. Cas. Rares). Both Cullen and Good are incorrect in stating that this form of Bulimia is attended with faintness. This is only an oc- casional symptom, which was absent in both the cases that occurred to me, as well as in that recorded by Dr. Crane. (Loud. Med. Repos., vol. xvii. p. 293.) 9. D. Voracious appetite followed by vomiting, the Bulimia Emetica cf Cullen. — This variety of bulimia frequently proceeds) from inflammatory irritation about the pylorus, but more commonly of the mucous surface of the stomach itself. The quantity of food devoured in this description of cases is often as large as in the last variety ; but shortly after having been taken, it is either alto- gether, or in part, thrown up, very little altered, and thus the patient continues alternately to crave for and to reject his food. This form of the disease has generally been imputed to a scir- rhous state of the pylorus ; but the case of Dr. Crane, already alluded to, was evidently inde- pendent of such a cause. 10. ii. Causes. — a. The remote causes of buli- mia are chiefly hereditary predisposition ; the habit of eating largely, voraciously, and without due mastication ; chronic debility, arising from ob- struction of the mesenteric glands, liver, &c. ; the suppression or disappearance of chronic eruptions, the healing of old ulcers, or the suddenly arresting habitual discharges, and the pathological condi- tions noticed in the foregoing remarks. 11. h. The' immediate cause, or state of the organ on which it depends, seems to be somewhat dif- ferent in the diflTerent varieties, even whilst the state of the constitutional or vital power may be considered to be, in the great majority of cases, very nearly the same. I believe that in many instances the voracious appetite is owing to an * I have met witli two very remarkable instances of this affection in children, — the one of seven years of age, the other of nine. In both these, but in the younger espe- cially, the quantity of food devoured was astonishing. Every thing that could be laid hold of, even in it» raw state, was seized upon most greedily. Besides other articles, an uncooked rabbit, haKa pound of candles, and some butter, were taken at one time. The mother slated, that this little girl, who was apparently in good health otherwise, took more food, if she could possibly obtain it, than the rest of her family, consisting of six besides her- self. In both this and the other case, tlie digestion seemed to be good. Three or four larg(^ feculent motions were passed daily, and a nauseous smell emanated from their i)odii'S. These children, who were both very intelligent, complained of no other uneasiness than a constant gnaw- ing or craving at the pit of the stomach, which was never altogether allayed, but which, shortly after a meal, impel, led them irresistibly to devour every thing that came in their way, in the shape of food, however disgusting. Nearly twenty years ago 1 saw, for a short time, aease of this description, which occurred in a child of about the same age, and occasioned alarm, owing to the circum- stance of a large quantity of raw lish having been de- voured by it. The result in this case did not come to my knowledge ; but the former cases, which occurred at the Inlirmary for Children, recovered by means of the treat- ment which will presently be noticed.. APPETITE, MORBID — Treatment or. irregular distribution of the vital energy, and its concentiatiou in the stomach, tlie neivesoflhis viscus being morbidly sensible, the muscular coats more irritable, particularly in the fourth variety of the disease ; and the mucous coat in a state of erythism, or vascular excitement, and yielding a much larger quantity of its proper fluids than in health. The excited state of the nerves of the organ will necessarily be followed by increase of its secretions, greater vascularity of its inner coat, and a disposition of the muscular tunics to react upon the enormous quantity of food wiiich distends them; and thus there will result the craving of extreme hunger, a rapid so- lution of the food, and a quick transfer of it into the duodenum; or, if the reaction takes place suddenly, either vomiting or simple regurgitation of it, as in cases of rumination, which is some- times complicated] with bulimia. The more re- mote effects of this state of the organ are, torpor, debility, and a sense of faintness arising from the concentration of the vital energy, and determin- ation of the circulation and secreting function towards the stomach and associated viscera, and tlie proportionate abstraction of vital influence from the brain and heart ; imperfect as>imilation ; irritation of the digestive mucous surface, from unwholesome and unchanged food ; an impure state of the blood, disorder of the secreting organs and morbid secretions, — all tending to disorganis- ation, and to the destruction of life. 12. c. The morbid appearances found on dissec- tion consist chiefly of inordinate distenison of the stomach and duodenum ; a vascular and corru- gated state of their mucous surface, constituting complete hypertrophy of these viscera ; a flabby, softened, and sometimes thickened appearance of all these tunics (Hagstroem); displacement of tlie right extremity of the greater part of the stomach low in the abdomen (French) ; indur- ation and thickening of its coats (Goudret) ; the insertion of the common bile-duct into its pyloric extremity ( V^esalius and Bonet) : dilat- ation of the oesophagus (Schurig) ; taenia in the bowels ; lumbrici in the stomach and duodenum ; enlargement and other organic lesions of the liver : scirrhus, thickening, and even dilatation (KuYscii), of the pylorus; thickening of all the cnats of the duodenum, forming hypertrophy of this part ; and various organic changes in the mesentery, its glands, the pancreas, spleen, and very generally in the mucous surface of the small and large intestines. ]\I. Beclaud observed, in a case of bulimia, the valvulae conniventes as large as in carnivorous animals. And M. Landre- Beauvais found, in a case complicated with pul- monary consumption, an unusually large size of the small intestines, and the gall-bladder wanting. 13. d. Symptotnutic bulimia. — Inordinate appe- tite has sometimes been observed in cases of chronic disease of the brain, particularly in slow inflammation of its substance, threatening, or ter- minating in, insanity. A very marked case of this description, and two or three slighter in- stances, have come before me in the course of practice. I have also met with it at the com- mencement of hydrocephalus, and in epilepsy. When thus dependent upon disease of the brain, the inordinate indulgence of the appetite is often followed by vomiting. In the case of epilepsy, however, in which I met with it, vomiting never 109 took place, although the quantity of food some- times taken was most excessive. The first, or slighter variety of the malady, is not uncommon in epilepsy, particularly iu the hereditary epi- lepsy of adults ; the second variety sometimes occurs in hysteria, chlorosis, and pulmonary con- sumption ; and the fourth, occasionally, in chronic encephalitis. 14. Bulimia is more frequently met with, par- ticularly in its slighter forms, in pregnancy and in verminous affections, and is then very generally attended with an urgent feeling of inanition and faintness. When it occurs in pregnancy, there is usually a fanciful longing for particular articles of food, of which an enormous quantity is de- voured. A remarkable excitement of the nerves of the stomach may be inferred to exist in these cases, greatly augmenting the secretion of gastric juice. When the affection proceeds from worms, it may be imputed to the irritation of the nerves and mucous surface of the stomach and duode- num, whereby the circulation of, and secretions poured into, these viscera, are much increased, whilst the vital actions of the rest of the frame languish more or less. 15. iii. Treatment. — The means of cure should have strict reference to the immediate cause to which we attribute the disorder. A. In the Jirst variety of the disorder, it is generally in vain to state any means of cure. They entirely rest with the patient, by whom medical advice will seldom be followed. I have great doubt of a single glutton having been deterred from the habit he has acquired, by the injunctions of his medical adviser, until an attack of illness occa- sioned him alarm. The cure is sufficiently simple, and may be cojnprised in the single recommenda- tion of employing his mind and body more, that he may abuse his stomach less. 16. B, In the second variety, great attention is re- quired to adapt the treatment to the circumstances in which it presents itself. The nature of the malady of which it is most commonly a symptom, must necessarily be our guide ; and as the means should be strictly appropriated to the peculiarities of the case, no general rules can be stated with propriety, further than that the effects of whatever is employed should be carefully watched, and that more mischief will result from indulging the craving complained of, than from opposing it, and allowing no more nourishment than the nature of the case, or the system, may seem to require, la the bulimia that occurs in convalescence from acute diseases, the wants of the economy are gene- rally greater than in other cases, and here more may be allowed ; if fever or disorder follow the indulgence, a purgative will generally remove it. 17. C. The preceding observations apply likewise to the third and fourth varieties of this disease. The cases which occurred in my practice were cured by an active course of nauseating purga- tives, consisting chiefly of the oil of turpentine with castor oil. In one of the cases, where the voracity was almost incredible, the first dose of the turpentine was followed by the sudden ap- pearance, over the whole trunk of the body, of a most copious and thick eruption, more nearly re- sembling porrigo favosa than any other, and by the equally sudden relief of the symptoms. This treatment was left off; when, after a few days, the eruption disappeared, and the voracious ap- no petite returned. It was ultimately removed per- manently by the hydrarcr. ciim creta, combined with soda, taken at bed-time, and a turpentine draught in the morning of each tliird or fourth day. Leeches were applied over the epigastric region ; and either the tartar emetic ointment, or liniment, was rubbed upon the same situation till a copious eruption of pimples was produced. The strictest regulation of the diet was enjoined. 18. D. In the varietii attended with partial or general regurgitation, or vomiting of the food taken in excessive quantity, the best effects will result from obliging the patient to abstain almost altogether from food, or to take a small portion of nourishment in the least possible bulk. Great distress from hunger will be felt for a few days, but this will gradually subside. In the instructive case published by Dr. Crane, this plan was per- sisted in ; and portable soup, made into pills, was given, as the only nourishment, for several weeks : the patient recovered perfectly. A nearly similar treatment had been previously employed by Mr. Wastell with success. (Mem. of Med. Soc. of Land., vol. iii. No. 2.) Where, however, the stomach is not so irritable as to throw oflf any portion of the ingesta, and has become distended and enlarged from habitual ingurgitation, a gra- dual diminution of the food will be better borne, and perhaps be more efficacious, than its sudden reduction. The propriety of employing deob- struents, small doses of the blue pill, combined with ipecacuanha, active cathartics, either by the mouth or in the form of enema, and external irri- tants and revulsants, in cases of this description, cannot be questioned. Exercise, where it can be taken ; and employment for both body and mind, as far as circumstances will permit; are also most useful adjuncts. Bibliography N. Jossius, V)e Voluptate, Dolore, Fame, &c. Rom. 1580. — ■ Van der Meer, Diss, de Fame Canina. Lugd. Bat. 1660. — Vesalius. Anatom., I. v.c. 3. 8. — ^onf<, Sppulchretum Anat, 1. iii. sec. ii. obs. Let 3. — Sc/iurig, Chylologia, p. 2 — 17. — De Reus. De Bulimo et Appetita Canino. Leid. 1673. — Mortimer, in Philos. Trans., No. 176 Kivinus, De Fame Canino, et Bulimo. Lips. 1716. — Sativagcs, Nosol. Metli. t. ii. p. 21.'> — Fretic/i, Memoirs of Med. Society of Loud., vol. i Hngstrocm, Kiilin Reportorium, h. iv.p. 630 — Cullen, Synopsis, ci. — A. F. Wallher, De Obesis et Voracibus, &c. in Delect. Opuscul. Med. Col. a ./. P. Frank, p. 236. Lips. 1791.— J. M. Good, Study of. Medicine, vol. i. p. 142. — Landre- JSeauvais, art. Boulimie, Diet, des Sciences Med., tom. iii. APPETITE, VITIATED — Causes of. Vitiated or Depraved Appetite. Pica, Citta, Malacia, Pseudwexia, Pica. Good. Dtjspepsia Pica, Der Sonderbare Appelil, Ger. An appetite for substances which are Spec. II. — Syn, lAmoxis Young. 1. Defi.m. not food. 2. i. Causes. — This state of the appetite some- times occurs in children, from an early accpiired liabit ; and it is frequently observed in idiots, from want of ability to discriminate what is or is not food, or from perversion of taste. Various substances also, which are abhorred in one cli- mate, constitute the chief articles of diet in another. Thus, the ('alifornians live on snakes, rats, lizards, &c., and numerous tribes of Africans on monkeys, dogs, snakes, &c. It is very fre- quently observed in pregnant, hysterical, and chlorotic females, and it is sometimes connected with certain kinds of mental emotion. 1 have met with several instances of it in females at the age of commencing puberty, when neither hy- steria, in any of its forms, nor chlorosis, existed. In these, and perhaps in the great majority of cases, it is altogether a symptomatic afTection, arising from altered sensibility of the nerves, anil modified state of the secretions of the stomach, occasioned by imperfect function, or changed condition, of a related organ, particularly of the uterus, ovaries, large bowels, and brain, 3. When it is observed as the primary disorder, it has generally been owing to a habit, commenced at first with the view of improving the shape and complexion. Females early in life sometimes have recourse to acids, particularly vinegar, and chalk, for this purpose. The form of the disease, which has been described by Dr. John Hunter as dirt-eating, by the negroes in the West Indies, and which has even assumed an epidemic cha- racter, is, perhaps, more than other forms of it, de- serving of being considered as idiopathic. The earth they devour chiefly consists of a loam or clay, and may possibly be taken by them from the circumstance of their having found it assuage the painful sensations produced in the stomach by acidity. This affection is much more frequently met with in the female than in the male sex ; but instances of its occurrence in the latter are not rare. I have seen several instances of it in males ; and in females it is often practised in so concealed a way, as not to come to the knowledge of the medical attendant. 4. The substances which occasionally become the objects of desire are sufficiently numerous. Medical records abound with them. Cinders, spiders, lice, flies, insects, toads, serpents, wood, hair, paper, earth, clay, chalk, vinegar, and other acids, and even ordure, have all been devoured in cases of this disease. Various other substances have been swallowed, more as singular exploits than from actual longing for them. Thus we have accounts of persons taking into their stomachs clasp-knives, musket bullets, billiard balls, gold watches, and Louis-d'ors; and, what is still more singular, generally discharging them by stool a few days afterwards. Knife-eating seems to have been no uncommon feat, as we have instances recorded of London, Prussian, Bohemian, North American, and 13razilian knife-eaters. Our friends of the United Slates seem to have surpassed all others in the rapacity which their knife-eater exhibited; for in June, 1822 (New York Med. liepos. Oct. 1822), after having been duly initiated in the art, by swallowing a gold watch, chain and seals, billiard balls, and various other articles, at diirerent limes, which had passed through his callous digestive tube, he swallowed fourteen knives in the course of the day. This was his great, but his last exploit, for he died two months afterwards ; having passed two of the knives by stool, the remaining dozen being found in the I)ody, — eleven in the stomach, and one in the oesophagus. 5. The articles most commonly fancied by young females are paper, cotton, thread, chalk, vinegar, and other acids. I once saw a sickly-complexioned lad, who was in the habit of eating sand ; and a robust .seaman, who occasionally would devour n whole wine or ale glass, having previously crushed it in small pieces with his teeth, and yet no bad effects resulted, at least for many months after- wards ( LoHrf. Med. Uopos.jVo]. xviii.). The only other instance on record, where this most danger- ARTERIES— THEIR Diseases. Ill ous feat has been performed, is given by Came- RARius (Memorah. cent. v.). 6. Wiien pica is complicated with biiUmia, as is sometimes observed, most singular and even astonishing feats in the way of devouring sub- stances of the most unsuitable kind are on record, — many of them also so large, that the possibility of their being conveyed into the stomach, if they liad not actually been found there, might have been doubted. Some really astonishing and au- thentic instances of this kind have been related by M. FouRNiEn (art. Cas. Rares, Diet, des Sciences Mtd. t. iv. p. 135.). 7. ii. Treatment. — The means of cure must, of course, have strict reference to the morbid con- dition of the system, of which it is so frequently a symptom. If it accompany pregnancy, 1 believe that the axiom which M. Francier adopts as the title of a treatise on the subject should be adopted, viz. A pregnant woman affected with pica should be well purged. If it be attendant upon chlorosis, aloetic purgatives, with emmena- gogues, and these followed by or given alternately with tonics, are the most suitable means, and are equally beneficial in the pica which occurs about the period of puberty. In hj'steria, similar mea- sures, combined with valerian, assafoetida, cam- phor, and other antispasmodics, are indicated. In these three symptomatic forms of the disease, any of the Formulas for those medicines in the Ap- pendix may be adopted. 8. When the affection presents an idiopathic character, which is comparatively rare, it is most commonly owing to a weakened state of the digestive organs, with, perhaps, an altered sensibility of the nerves, and acid state of the secretions of the stomach. In these cases, the combination of vegeta- ble tonics with alkalies, and attention to the alvine secretions andexcretions, are chiefly required. The treatment of cases of the affection induced early in life from habit, will be unsatisfactory, or without avail, until the cause is removed ; but it differs in no essential particular from that now stated. In many cases the pernicious habit has commenced with early puberty, and, as well as in the cases associated with chlorosis, hysteria, pregnancy, and irregularity of the menstrual discharge, is evidently dependent upon the state of the uterine functions. (See Chlorosis, Menstruation.) Bibliography. — Francier, Ergo Gravidfe Pica Labo- rantes Purgandae. Paris, 1615 — Bech, Dissert, de Pica Pr£egnantum. 4to. Lugd. Bat. 1653 Schuster, De Pica seu Malacia, !Arg. 1658. 4to. — A. Castro, De IVIorbis Mulierum, 1. iii. p. 389 Forestus, Opera, 1. xviii. obs. 7. et 1. xxviii. obs. 65. — Sc/ici'der, De Appetitu Gravidar. Wit. 1670. 8vo Horslitis, Opera, vol. ii. p. 160. — Sau- va^es. Op., t. ii. p. 212. — Meyer, Diss, de Pica et Malacia. Erf. nOi. — Schurig, Chylologia, pp. 38. 45. 49, &c. _ Scheideinantel, Beytriige zur Arzneykunde, No. 5. et No. 34. — Gruner, Dissert, de Pica et Malacia. Jen^, 1791. — Hunter, On Diseases of the Arn.y in Jamaica. 8vo. — Cullen, Synopsis, c. iii. — Good, Study of, Medi- cine, vol. i Gardieri, Traite Complet d'Acconchcmens, et des Mala(iies des Filles, des Femmes, et des Enfans. Paris, 1826. ARTERIES, THEIR Diseases. — • Syn 'Apnipia, Gr. Arteria, Lat. Artere, Fr. Eine Schlagader, Pulsader, Ger. Arteria, Ital. Artery, Eng. 1. The morbid conditions of arterial vessels cannot be appreciated, either in respect of their causes, symptoms, or consequences, unless their organisation and connections with other systems of the frame be clearly understood. It does not fall within my limits to notice all the connections which these vessels present with other parts of the body ; but there are a few to which I will brifcHy allude, as most material in the causation of their diseases, and of certain sympathetic affec- tions with which these diseases are related. 2. I. Organisation. — The arterial tubes are essentially constituted, 1st, Of an external and adventitious txinic, consistmg of a very delicate and condensed cellulo-filamentous tissue. This tissue is never infiltrated by serum, nor loaded by fat ; and possesses the greatest degree of resistance of all the other coats of the vessel. 2d, Of a proper coat, consisting of fine circular fibres placed closely together, and forming a strong tissue of a dun yellowish colour. The nature of this tissue has been a matter of much dispute with pathologists. It certainly does not possess the physical and chemical properties of the fibres of voluntary muscles, from which it chiefly dif- fers in being much more close in its structure, and more elastic and fragile than they. 3d, Of a very delicate cellular tissue, like a fine pellicle, the second cellular tunic of Haller, interposed between the fibrous or proper coat and that next to be described. It is in this fine membrane that the minute vessels supplying the arteries, and which proceed from the adjoining parts, terminate; and here also the ultimate distributions of the arterial nerves may be supposed to ramify, al- though they cannot be clearly traced further through the coats of the vessel than the proper fibrous tunic where I have distinctly followed them. This is the most vascular of the tunics strictly constituting arterial vessels ; and one in which many of those changes which will fall under consideration commence. 4th, Of an in- ternal membrane, presenting no linear or fibrous structure, semi-transparent, more readily detached from the one next to it in the longitudinal than in the transverse direction, and fragile. This de- licate membrane is not possessed of vessels carry- ing red blood in the healthy state, but it is pene- trated by minute red vessels when inflamed. It lines, with scarcely any perceptible modification, the canals of all the vessels conveying red blood, and the cavities of the heart. 3. The arterial vessels thus formed are sur- rounded by a sheath of loose cellular tissue, more or less abundant in some parts than in others, permitting the vessels to accommodate themselves to their varying state of dilatation, constriction, &c., and transmitting the vessels which are em- ployed in their nutrition. The elastic properties of the proper coat of the vessels, serve also to ac- commodate their capacity to the state of the cir- culating fluid ; and as it is generally supposed that they are in a certain degree of distension during life, owing to the quantity of blood con- stantly being impelled through them by the heart's contractions, so it is believed that the con- tractions which they display on the removal of this fluid is at least partly owing to the abstraction of the distending cause. 4. No trace of longitudinal fibres can be de- tected in arteries. The elastic properties which they present in the direction of their axis, when extended beyond their natural limits, and their retraction upon their division, are chiefly owing to the dense cellular coat immediately surround- ing the proper fibrous structure of the vessel. The different degrees of tenacity presented by the various structures composing the parietes of these 112 ARTERIES — vessels, acting conjointly with the elasticity of the proper coat, have been considered by many as sufficient to account for the absence of ha;mor- rhage after laceration of these vessels. Doubtless these circumstances contribute, but I conceive that they are insufficient of themselves to account for this and other phenomena, which will be no- ticed in the sequel. 5. The arteries are surrounded by the ganglial nerves, which form a reticulum around them ; and from this reticulum very minute fibrillee are given off, and dip into their fibrous tunic. This disposition of the ganglial nerves on the arteries ought to be kept in recollection when we inquire into the functions and diseases of the latter. How far it is necessary, not only to the discharge of the most manifest actions which the arterial sys- tem performs, but also to those changes which the blood undergoes in disease, and to the assimila- tion of the chyle, and other absorbed fluids, I have ventured to state in the article on the Pa- thology of the Bi.ooD. It is evidently to the very intimate connection of this class of nerves with the arteries, and the effects resulting therefrom, that we must impute those changes, whether functional or organic, which take place in the latter, and which influence the state of the blood, and the circulation through them. (See the Author's Appendix to Richehand's Physiology, p. 556.613.) 6. II. Nervous Affections of AnTERiES.— Classip. : — II. Class, I. Order (Author). 7. There is sometimes disorder referrible to a particular artery, or arteries, evidently depending on an affection of the nerves supplying them. Of this description are, 1st, Neuralgia of the arteries ; 2d, The violent pulsations sometimes felt in a large arterial trunk. 1st. Laennec admitted the existence of neuralgia of arteries, and considered it to be characterised by acute pain in their course, with increase of their pulsations and the bellows sound ; and to be independent of inflammation, as shown by the sudden accession and remission of the symptoms, and their periodic recurrence. That this affection is sometimes connected with irritation, or with an inflammatory state of its nutritious vessels, may or may not be the case ; but it is certainly not always so connected. 8. 2d. Violent pulsation of arteries is more commonly observed unaccompanied with exces- sive pain. In these cases a loud bellows sound is often heard in all the principal arteries, parti- cularly those in which the increased pulsation is felt. This affection generally supervenes and disappears suddenly in nervous and debilitated persons, particularly after large losses of blood. IMorbid anatomy has not as yet thrown any light on its nature ; and therefore we can only refer it to some peculiar influence exerted by the nerves supplying the vessels thus affected, and probably depending originally upon the state of the vital energies of the frame. It is sometimes associated with hypertrophy of the heart. In this case, it is in a great measure to he imputed to that disease. 9. Treatment if these affections. — When neu- ralgic pain is felt in the course of arteries, and is quite unaccompanied by inflammation, the same treatment which is recommended in the article on the painful affections of Nkrvks may be adopted. After morbid secretions and inte-linal colluvies have been carried off by purgatives. Inflammation of. tonics combined with antispasmodics may be employed. The preparations of iron, the sulphate of quinine, ammonia, camphor, alone or com- bined with opium, colchicum, belladonna, or hy- drocyanic acid ; the external application of the ace- tate or muriate of morphine, or the cyanuret of potassium, &c. may be tried. In the cases of in- ordinate pulsations, unassociated with pain of the arteries, attention to the alvine secretions anrl excretions, and the use of tonics and antispasmo- dics, will generally be productive of advantage. As these functional disorders are generally con- sequent upon disturbance of some internal organ or part, sometimes a distant or remote effect of pre-existing disorder, the seat and nature of such disturbance should be investigated, and the treat- ment directed accordingly. In all such cases, residence in a dry and salubrious air, occasional change of air, gentle and regular exercise, and a light and nutritious diet, will be of much service. CSee art. Aorta, % 2 — 6.) 10. III. Inflammation of Arteries. — Syn. Arteritis, or Arteriitis ; Artereitis, Hilden- brand. UArtdrite, Fr. Pulsader — , Ar- teri — , Schlagaderentz'undung, Ger. Classif. 111. Class, I. Order (Authoi-, see Preface). 11. Defin. — Great and tumultuous vascular excitement, palpitations, anxiety, sense of heat and throbbing in the course of the principal arteries, followed by collapse of the vital energies, and occa- sionally by gangrene of a limb. 12. This disease was not entirely unknown to the ancients, as Aret«us makes mention of in- flammation of the aorta. But notwithstanding the incidental notice which was taken of inflam- mation of arteries by Morgagni, and Boerhaave, and afterwards by Grant, the attention of the medical practitioner was never directed to the subject, until J. P. FRA^■K noticed it in a parti- cular manner. It is, therefore, to the last-named author that we are chiefly indebted for the nume- rous researches of pathologists respecting it in modern times. Since the appearance of Frank's work, arteritis has received due notice from Testa, Kreysig, Reil, Baillie, Burns, Cor- visart, Schmuck, Portal, Scarpa, Hodgson, Travers, Ribes, Laennec, Breschet, Dalbant, Vaidy, Bertin, Bouii.laud, Guthrie, Titoi^s- SEAu, and several others, and it is now generally recognised as a specific and most important dis- ease, sometimes occurring piimarily, occasionally consecutively and conjoined with other diseases, by no means of rare occurrence, and, in whatever form it presents itself, always threatening the most serious consequences. 13. i. Pathology of Arteritis. — Arteries, being composed of distinct tissues, may be sup- posed to be liable to all those kinds of inflamma- tory action, to which each of their constituent parts are most disposed. However frequently inflammatory action may originate in one rather than in more of the coats of an artery, it seems seldom to continue thus limited, but soon affects the rest to a greater or less extent. It may even seize simultaneously upon all the coats ; but this is, 1 think, of comparatively rare occurrence. The individual tis'^ues of an artery most frequentlv inflamed, in a primary manner, are the internal membrane of the vessel, and its connecting cel- lular tissue. ARTERIES — Inflammation of, its Pathology. 113 now described. It seems extremely probable that 14. Arteritis may be jmrtial or general, as re- spects its extension through this cla»s of vessels ; and it may present every grade of activity, from the most acute to the most chri)nic form. It ge- nerally attacks one or more of the arterial trunks iind larger branches. When it affects the arterial capillaries, it constitutes, in the opinion of some pathologists, inflammation itself; but whether it can be demonstrated as existing in this latter class of vessels, or in what respects it may either differ or agree with inflammation when it does thus exist, are points which have not been yet settled by the few pathologists who have agitated the question. 15. Inflammation may possibly, however, seize upon a number of arterial ramifications in an organ, especially in an unhealthy habit of body, or in a part injured by external violence or exces- sive cold ; but when it is thus seated, all circu- lation through the part is quickly interrupted, owing to the effusion which takes place and destroys the permeability of the ves.-els. The consequences in such cases are, 1st, sphacelus and gangrene of an extremity or part, as we ob- serve in cases of fro«t-bite ; and 2d, when the inflammation is limited to the capillaries of a circumscribed portion of an organ, particularly when this portion is surrounded by healthy struc- ture, a breaking down of the texture, and its conversion into a foetid purulent-like matter, as in gangrene of the lungs, and some kinds of abscess elf without any line of separation being formed. In this case the constitutional powers fail rapidly, owing to the contamination of the surrounding structures and circulating fluid, from the absorp- tion of the products of inflammation through the venous capillaries of the part, which seldom escape participaimg in the disease. 18. Such seem to be the results of inflammation affecting a congeries of arterial vessels, or the arterial branches and their ramifications tlirough- out an extremity ; and I conceive that tho-e in- flammations which are rapidly followed by spha- celation and gangrene, as well as some lesions considered under different heads, and which have been generally referred to the common seat and consequences of inflammation, are of the nature Vol. I. several lesions of a disorganised and disorganising description, following rapidly upon the first deve- lopment of deranged circulation, arise from the source now contended for ; or, in other words, that some of the consequences usually referred lo common inflammation, in conjunction with pecu- liarity of habit and of the part affected, actually spring from inflammation and obstruction of the arterial vessels, and cannot be otherwise satis- factorily explained. 19. Inflammation of arteries, like inflamma- tions of all other parts, may, however, give rise to effects which will vary according to the degree of intensity of the morbid action, the coat or coats of the vessel in which it originates, or to which it extends, and the habit, diathesis, and constitu- tional energy of the patient. The duration of this disease, as well as its constitutional effects, will also depend upon the above circumstances; and in inflammation of this part of the system, more perhaps than in the inflammation of any other part of the body, excepting merely the rest of the circulating organs, the primary effects and pro- ducts of the inflammatory act will be rapidly pro- ductive of ulterior effects, serious in their nature and results, even after the morbid action which originated them had altogether disappeared, and could be recognised only in those remoter but pal- pable consequences, some of which have been alluded to in the preceding paragraphs, and which will be more fully referred to in the sequel, par- ticularly in the section on the morbid structure of arteries (§ 38.). 20. ii. Causes. — 1st, The predisposing causes of aiteritis are generally those of inflammation in general ; but those which seem especially to favour the production of this disease, are the gouty and rheumatic diathesis; the middle and advanced epochs of life ; certain constitutions of the atmo- sphere, or epidemic influence ; peculiarity of cli- mate, and whatever occasions-a diuiinution of the crasis of the blood, or imparls to it an exciting influence on the vessels ; indulgence in the use of much animal food, and vinouj and spirituous liquors ; a plethoric habit of body, particularly when conjoined to the sanguine and irritable tem- peraments; prolonged high temperature ; intem- perate and luxurious habits ; the constitutional effects of syphilis or mercury ; the suppression of accustomed discharges, particularly the sangui- neous ; reiterated or prolonged attacks of nervous, convulsive, or spasmodic diseases ; and deficient secreting powers of the various emunctories, as the kidneys, liver, &c. 21. 2d, The exciting causes of this disease, be- sides those which are more commonly productive of inflammation, are congelation of parts from great cold, and the sudden exposure to a higher tem- perature; insolation ; punctured, incised, lacerated or contused wounds ; surgical operations ; ligatures of arteries after the operation of aneurism (Cline, AfiEnNETHY, &c.), or amputation, and from tying the umbilical chord (Okhme) ; excessive suffering from long-continued operations ; continued and fatiguing exertions ; sudden and violent muscular action ; the sudden extension of a part occasion- ing the elongation of the vessel and rupture of its internal coat ; pressure in the course of arterial vessels ; violent fits of passion ; great mental emotions ; e\haustion of the vital powers ; puru- 114 ARTERIES — Inflammation of, its Pathology. lent and morbid secretions ; animal matters and poisons absorbed into tlie circulation ; chemical agents of any description introduced into the vascular system ; and the sudden repulsion or suppression of exanthemutous levers and eruptive diseases. Pout,il records an instance of tiie disease which was occasioned by the repulsion of the eruption of measles. I met with an instance of inflammation of tlie internal membrane of the heart and arteries, in a fatal ca-^e of malignant scarlatina, with an imperfect and evanescent eruption on the skin. M. Breschet details se- veral cases in which the disease was consequent upon erysipelas and chronic abscesses. I have found the internal surface both of the arteries and of the veins dark red, and softened, iu two fatal cases of puerperal fever, cliaracterised by evident signs of absorption of sanious matter from the uterus. A case also lately came before me of erysipelas followed by gangrenous escars on the sacrum, where the internal surface of the sangui- ferous system, and particularly of the aorta and large arteries, as far as they were examined, pre- sented a similar appearance. In all these cases the inspection had been made within eighteen hours after death. 22. The causes of arteritis consist, therefore, 1st, of those which act externally as respects the vessels ; and, 2d, of those which irritate in a di- rect manner the internal surface of the arteries themselves, by being conveyed into the circula- ting fluid, the properties of which they may have previously changed. But, in whichever of those wavs they may act, tlieir fiist eflTect seems to be to change or influence the vital energies of the organic nerves ramified to the coats of this system of vessels. 23. 3d, Anatomical characters. — As to the par- ticular tissue of the arteries, in which the inflam- mation originates, I am of opinion that a careful examination of the phenomena of the disease in connection with its causes and complicaiions will warrant the inference, that, when it arises from those causes which act exteriorly to the vessels (§ 21.), and which are chitfly local in their oper- ation, the inflammation is generally limited as to its extent, being confined to a part only of tiie arterial system, or to two or more considerable branches; that it often affects more than one of the coats of the vessel in this case ; and that it generally assumes the sthenic characteis, giving rise to those changes which usually result from this form of inflammatory action, such as the effusion of coagulable lymph, forming fibiinous concretions and false mendjranes in the interior of the vessel, obstructing or obliterating its cavity ; red vascular injection, thickening and softening of its tunics ; and suppuration, with or witiiout ulcer- ation of its internal niendjrane. 24. On the other hand, when the disease ori- ginates from causes existmg within the vessels, and acting through the medium of the blood itself, and more especially when it is complicated with malignant and eruptive fevers, with erysipe- las, &c., or is caused by the absorption of morbid secretions, &.c. into the current of the circulation, tiie vascular excitement is rapidly followed by symptoms of an ataxic or astiienic character ; the inflammation is chiefly confined to the internal surface of the vessels, but it extends more or less throughout the whole arterial system, and, in many cases, also to the inner lining of the cavities of the heart, and even of the veins. In cases of this description, the lesions of the arteries which it occasions consist chiefly of a dark red or violet- coloured injection of the inner membrane and connecting cellular tissue ; great softening and friability of those tissues, with slight sanious infiltration of the walls of the vessel in diflferent parts. 25. It should not, however, be overlooked, that the inflammation of an ailery may frequently commence irom local causes, and originate in, and be for a time confined to, a particular trunk or its branches, presenting all the signs of the sthenic form of inflammatory action, and yet, owing to causes lowering the vital energies of the frame, or to the absorption of the matters secreted fiom the inflamed vessel into the current of the circulation, or to both, may pass into the generally difl^used and ataxic state ol the disease. 2(5. iii. Symptoms of Acute Arteritis. — These will necessaiily vary according to the stage of the disease, the severity and activiiy of tlie attack, and the organic changes which the inflammatory action has occasioned in the affected vessels. I shall therefore adduce, /;«/, those symptoms which cha- racterise the disease previous to the supervention of those changes which afl'ect this system so as materially to impede its functions, or to change the condition of the circulating fluid ; and next, those signs which indicate important changes in the state of the vessel, and of the blood itself. 27. Thejiisl sUige is one frequently of much obscurity ; and win n the inflammation is limited to the vessels of a single limb or organ, it is very difficult to distinguish it from the common inflam- mation of the pait. While the internal tunics of the vessels are yet the chief parts affected, and the eflfusion of lymph into their interior has either not supervened, or not obstructed their canals, the patient generally feels, either after a rigor, or at first alternating with rigors, an increase of the pulsations of the vessels of the part, with a sensa- tion of heat, uneasiness, or pain. When arteritis is more general, and particulaily if it be con- nected with inflammation of the heart's internal surface, as occasionally occurs, the symptoms are those of fever of an extremely inflammatory type, as has been remarked by J. P. Frank {Dts Cur. Horn. Morb. t. ii. p. 175.) and M. Bouil- LAUD {Traite Clin, el Exp. de Fiivres. p. 175.^ ; commencing in I'igors, at first alternaiing with, and followed by, great anxiety, irritability, rest- lessness, uneasiness, a sensation of burning heat and remarkable pulsation, with increased sensi- bility in the course of the large arteries. The patient complains of general and unremitting throbbing throughout the system, sometimes felt more intensely in one part than in another. The surface of the body is hot, tumid, and injected ; the tongue red, the papillae erect, and its base furred and loaded ; the bowels are costive ; thirst is urgent and unquenchable ; the urine scanty, voided with a sense of scalding, and high-coloured ; the patient is distressed with palpitations. The pulse at this stage of the disease is strong, tumul- tuous, throbbing, full, and frequent ; and the contractions of the heart hurried and tumultuous. To these are sometimes added cough, occurring ill paroxysms, with fits of dyspnoea. When tho iiiOainii.utioa extends to the aoita and internal ARTERIES •Inflammation op, its Pathology. 11- lining of the heart's cavities, the characteristic symptoms of inflammation of those parts (see Aortitis, &c.) are superadded to the above. 28. The second stage is chiefly ciiaracterised by the greater severity of the symptoms, indi- cating tiiat serious changes are advancing in the internal coats of the vessels, and influencing not only the state of the vital energies of the sangui- ferous system, but also the stale of the blood. At this period of the disease, the pulse generally be- comes extremely frequent, and often wiry, weak, and irregular; whilst the palpitations, anxiety, and paroxysms of dyspnoea increase. The tongue is either dry, the papilla; erect, and its centre furred with a dark mucus or sordes ; or it is smooth, glossy, and of a dark tint. The patient is liable to startlngs and spasms in different parts of the body. The desire foi' drink increases ; tiie strength sinks ; the countenance at first shrinks, is pallid or haggard, but, towards an unfavourable close of this stage, it often becomes somewhat bloated, cedematous, or cadaverous, occasionally injected, and the lips purplish. The extremities are frequently cedematous ; and they, as well as other parts of the body, are sometimes affected with wheals, ecchymosis, pblyctenae, or laige vesications. In some cases, eflusions of sero- albuminous fluids take place in some of the shut cavities ; the surface of the body is covered by a cold perspiration ; the extremities become cold, and sometimes of a purplish red colour; and a low muttering delirium appears during the night, from which, at last, the patient is never entirely exempt. To these often supervene a tendency to syncope upon raising the head ; irregular palpi- tations ; weak, irregular, hurried, and quick pulse ; and a quick, short, and difficult respir- ation; sometimes orthopnoea and distressing cough. Hiccup and convulsions at last appear, and the patient expires. 29. If the intlaramation be seated in large trunks, the serum effused from the internal sur- face of the inflamed vessel necessarily comes in contact with the circulating fluid ; hut I believe it does not readily mix with it in persons of a sound constitution, or whose vital energies have not been mateiially affected, but forms a coagu- lum, which either sheaths the internal surface of the vessel, partially obstructing it, or altogether filling up its channel. In this case, the symptoms indicate interruption of the circulation through a considerable branch of an artery : the limb becomes cedematous, cold, leucnphlegmatic, or purplish coloured, with irregular phlyctens and large vesications on its surface, which sometimes go on to gangrene ; especially when the disease has extended to the collateral arteries, which, if they had remained unaflTected, would have per- formed the functions of the inflamed and ob- structed trunk. 30. When ateritis occurs in a weak or cachectic habit of body, the fluid secreted from the inflamed internal surface of the vessels, owing to the state of the constitutional powers, will not coagulate, but, being of a dissolved and sanious quality, readily mixes with the blood, and no interruption to the circulation through the inflamed vessels occurs : but the energies of life become depressed from the morbid slate of the vital current thus occasioned, and many of the symptoms of ataxic or malignant fever manifest themselves; — such as great prostration of the powers of the frame ; low delirium ; an impeded and morbid state of the secretions and excretions; weak, quick, and irregular pulse; a cadaverous and lurid counte- nance ; accumulations of dark mucous sordes about the tongue and mouth ; flaccidity of the soft solids, with the rest of the phenomena described as con- sequent upon Injiammatinn of Veins. 31. iv. Chronic Arteritis. — The more acute and active states of arteritis, although frequently admitling only of a doubtful recognition during the life of the patient, are more readily ascertained than the chronic forms of the disease. These latter, how- ever, seem more frequently limited to particular arteries than the acute, and hence oftener produce local effects; but these are generally so slight, and of so equivocal a character, that they com- monly escape detection, and are unattended to by the patient until the lesion on which they depend arrives at that degree of advancement which seriously disturbs the functions, and even the vitality, of the part. A very large proportion of the lesions which will be described hereafter (j 38.) seem to originate in chronic states of in- flammation ; and, if not actually commencing in these states, they are frequently complicated with them. It will be unnecessary further to notice those symptoms which seem to indicate the pre- sence of chronic arteritis, than to state that thev consist of many of the signs already adduced as attendant on the acute forms of the disease, but in a much slighter degree ; and frequently no functional lesion can be remarked. When, how- ever, the circulation through the vessel becomes impeded or obstructed, we may infer chronic dis- ease of the arteries from the inequality or entiie absence of the pulsation in these arteries supplying the part whose functions are most affected ; from oedema, coldness, disioloiiration, vesications, or from signs of the grangraena senilis in a limb ; or Irom a feeling of weakness, and a state approaching to paralysis of an extremity or part. 32. V. Complications. — The states of morbid association of which arteritis forms an especial part have been more frequently disclosed to us after death than recognised during life ; nor is it to be expected that, in some of the associations in which it has presented itself, it can be ascertained by the most diligent investigation of the case pre- vious to dissolution. We are still so much in want of faithfully observed cases of the disease, even in its simple and unmasked forms, and of correct informatiou on various topics respecting its history and pathology, as to render our dia- gnosis imperfect and doubtful , and how much more difficult must be our attempts to recognise it in its complicated forms, when it is masked by other diseases, the phenomena of which obscure it from the observation of the practitioner, and even abstract the attention of the patient himself from the feelings it may awaken. In noticing, there- fore, the complications of which this disease often forms a part, it is with the sole view of turning atteniion to their importance, and in order that the circumstance may receive due consideration, when we give our prognosis respecting those ma- ladies with which it has been found associated, and when we devise means for either their relief or their removal. 33. Inflammation of the arteries has been ob- served in fatal cases of inflammatory and malignant 12 116 ARTEIUKS— Morbid Structure of, fevers, and in lliose which have been charactei- ised by great vascular excitement at their coni- Tnencement, witii symptoms of ataxy during their progress. In the great majority of such cases, it is a consecutive affection occasioned either by a greater concentration of the morbid action in a particular system, as explained when treating of fevers ; or by an alteration of the properties of the blood, owing to huitful materials having ac- cumulated in it froni deficient action of the eli- minating organs, or to a morbid state of the ner- vous influence imparted to the blood from the vessels in which it circuhiles. (See Blood.) 34. Owing to similar causes, arteritis is some- times consecutive of eruptive fevers, particularly when the eruption, and the morbid evacuation of ■which it consists, are imperfectly developed or prematurely suppressed ; or it may supervene to small-pox, occasioning the most dangerous part of the symptoms forming the secondary fever of this disease. In cases of this description, the arteritis is almost always general, chiefly limited to the serous membrane of tlie arteries, but extending also to the same membrane of the veins ; and evidently induced by the altered state of the blood, and the presence in it of hurtful materials. To this cause chiefly is to be imputed its occa- sional occurrence during erysipelas, phlebitis, and as one of the chief lesmns observed in fata! cases of those diseases to which the term puerjieral fevers has been applied. The complication of arteritis wiih phlebitis i< one of the most frequent which occurs. That this should be the case, we might infer from the circumstance of the same causes generally acting upon both divisions of the vascular system, particularly those which act through the medium of the circulating fluid. j\I. BRESCHtT found inflammation of the internal surface of the veins in a very large proportion of the cases (8 in 13) of arteritis which he has de- tailed at length in his interesting memoir. 35. Arteriti-i has likewi-e been found associated with injtammation of the heart, with that of the lungs, and with telanus, particularly traumatic tetanus. A ca^e of this last complication is alluded to by the wiiter of an able article in the second volume of the Medico-Chirargical Review. It has also been observed, although rarely, conjoined with seroiLS effusion into the shut cavities, parti- cularly the pericardium, pleura, and peritoneum. 36. vi. Diagnosis. — It has been very justly remarked by the writer to whom I have already referred, that, until numerous and diversified observations in clinical practice, illustrated by the examination of fatal cases, shall have fuither enlarged our knowledge of this malady, any attempt to delineate the symptoms which are diagnostic of its presence must necessarily be somewhat imperfect. Hut it may generally be inferred, — when the principal symptoms which have been enumerated appear — when the heat and pain attendant on this, as on other inflam- mations, are not concentrated in one part or organ, but are more or less generally diffused, particu- larly in the course of the arterial vessels — when these sensations are arcompanieil with an audible or perceptible impetuosity of action, propagated from the large trunks to the smaller and more BU])erf)c:al ramifications — and when, moreover, anasarcous injection of the surface or of the limbs patches, supervene, — that the disease is inflam- mation of the arterial system, either in its partial or general form, 37. vii. The Prognosis of arteritis may be said to be, upon the whole, unfavourable, even as res]iecls its more immediate effects, in the acute states of the di-ease ; but chiefly as regards its remote consequences in its chronic forms. The prognosis is more unfavourable when it i< com- plicated with, or supervenes on, other diseasfS ($§ 33 — 35.): The morbid changes which it usually occasions are fully described in the next section of this article. Before proceeding to offer any observations on the treufmejif of arteritis, I will desci'ibe the various changes of structures which arteries present, as the greatest proportion of these changes are pro- duced by inflammatory action in some one of its various grades or states. 38. IV. JMoRBiD Structure OF Arteries. — 1st, Lesions of the individual coats of arteries. — A. Redness of the inner membrane of arteries is often observed in post mortem examinations. — a. It seems to proceed from three causes : \>t, from the imbibition of the colouring particles of the blood remaining in the vessels, being entirely the consequence of death, and the result of in- cipient decomposition ; 2d, from a change in the slate of the blood occurring in the course of the disease which occasioned death, and existing some time before this event ; and, 3r(l, from a morbid or injected state of the capillaries ramified in the coats of the vessel, or terminating in this mem- brane. In an epidemic amongst horses, which occurred at Paris in 1825, characterised by symptoms of disease of the thoracic viscera, no morbid appearances were found in the lung':, but the internal membrane of the large vessels was uniformly red, and the muscular structure of the heart remarkably softened. From the ex- periments of Gendrin {Hist. Anat. des Injiam. t. ii. p. 9.), it is evident ihat the same varieties of colour, which we occasionally observe in arteries after death, may be produced by artificial irritation. There is, however, this imj)ortant difference, — th it when their redness is produced artificially, it is accompanied by other alterations of ti'isue, such as softening, serous or purulent infilti'ation, &c. ; whereas, in almost all the cases where the arteries have been found of a red colour throughout, the change was unattended by any other morbid appearance in them. 1 believe that this colouration of the internal membrane of the arteries, as well as of the cavities of the heart, is more frequently owing to a morbid condition of the blooil itself, than to any inflammatory change in them. This opinion is confirmed by the cir- cumstances and states of disease in which it com- monly occurs; these chiefly consi-ting of de- pressed vital energies, deficient secreting power, and a consequent morbid condition of the blood itself. 39. b. The internal membrane of arteries some- times loses its tenuity and natural transparency, either in a few isolated points merely, or through a gr'cat extent of its surface. I his state may amount to considerable thickening and opacity; but in many cases these appearances do not de- pend upon any remarkable change in tiiis mem- brane, but upon an albuminous exudation in its followed by wheals, vesications, or ecchymosed | connecting cellular tissue ARTERi; S — MoimiD STnucTinfi or. 117 40. c. Softening also takes place in tliis mem- brane, wliicli is sometimes so friable as to be re- duced to a pulpy mass by the slightest scrapinp: with the scalpel. Possibly, owing to this state of the inner membrane, its laceration may take place upon stretching the vessel by the more violent motions of the body, or of a limb. 41. d. i?»/)<(()eor laceration of the internal coat of an artery is sometimes met with : it necessarily occasions an effusion of lymph from ilie lacerated part, and the projection of the flaps of the divided coat into the canal of the vc'^sel, either partially or entirely obstructing it. To this occurrence is chiefly to be imputed the cases of spontaneous ob- struction of arteries, whicii are sometimes met with. This subject has been well illustrated by Mr. Tur- NKR, in the third volume of the Transactions of the Medico-Chirurgical Society of Edinburgh. 42. e. Ulceration of the internal membrane of arteries is not infrequent. The ulcers are gene- rally round ; occasionally one only is to be found. Sometimes the large arterial trunks, and particularly the aorta, are studded with them. But this is raiely observed, unless other alter- ations exist in the subjacent tissues, such as ossification, softening, &c. M. Boiullaud is of opinion that the ulceration of the inner coat occa- sionally admits of cicatrisation. 43. B. The middle coat is more frequently diseased than the internal. It is often saj't and friable, and deprived of its natuial elasticity; giving ria'. In this state it approaches to the appearance of cellular tissue, and is much thinner, resembling the tunic of veins ; and the artery loses its elasticity and collapses when di- vided. This coat may also require much rigidity, and be transformed into cartilaginous or even osseous lings, embracing the whole circumference oT the vessel. This change is rarely met with in the aoita, but it not infrequently occurs in large arterial trunks, as the femoral artery, &c. Ulcer- ation may extend to and penetrate this coat, most frequently advancing from the internal membrane, and be followed by dilatation or rupture of the external tunic (§ 47. et seq.) 44. C. The external oh celhilar coat of arteries is liable to fewer alterations than the other coats; it often remains sound when they are extensively diseased, when it has alone to sustain the column of blood injected through it. But it also frequently participates in the changes of the other coals, becoming ruptured from the pressure of the stream of blood thrown into it, and more rarely ulcerated. — The foregoing changes of the individual coals of an artery combine to affect its functions and condition, and give rise to important alterations of its structure and of its calibre, which may be increased, diminished, or entirely obliteraterj. Each of these requires a separate bat brief consideration. 45. 2d, Changes of the structure and calibre of arteries, — A. Aneurism. — a. True atieurism, or diUitalion oj' arteries occurs — 1st, in a part only of its circumference, and, 2d, in its entire cir- cumference : the latter is the more frequent oc- currence of the two : it may embrace but a small extent of the ves^el, or it may extend to a con- siderable portion ; as, for instance, to nearly the whole of the aorta. Dilatation of a part only of the circumference of an artery is rare, but cer- tainly not so rare as to warrant some authors in disputing its existence. M. Andral states, that on more occasions than one he has traced dis- tinctly the three arterial coats passing over the walls of a sac which seemed as if appended to the artery, with the cavity of which it commu- nicated. Dilatation either of a part, or the whole, of the circumference of an artery, consti- tutes the true aneurism of authors ; and according to its extent it may constitute simple dilatation, or true aneurism in its first stage, and sacculated aneurism, or the advanced state of this disease. 46. The coals of a dilated portion of artery, although not ruptured, may be otherwise altered. They are frequently thinner than natural, and the middle coat is generally deprived of its elasticity. In this state the vessel yields like a vein to the dis- tending impetus of the blood. In other cases, the coats of the dilated portion of artery are hyper- trophied. JNI. Andral likens this state to the dila- tations of the stomach and heart, which are often accompanied with an increased thickness of their parietes. 47. b. False aneurism. — Mixed aneurism. — Dilatation with rupture of one or more of the coats, constituting the false aneitrism of authors, is another frequent alteration. The internal and middle coats are those most frequently ruptured, the blood coming in contact with the external or cellular coat or sheath, dilating it in the form of a pouch, and thus forming the anenrismal sac. 'i he parietes of this sac are generally much thicker than the cellular sheath of the vessel was originally, owing to the gradual condensation of the sur- rounding cellular tissue from the pressure of the tumour, and the additional envelope it thus ac- quires. The interior of the sac is filled more or less with fibrinous coagula, arranged in concentric layers, the more exterior of which frequently become so dense as to be distinguished with diffi- culty from the paiietes of the sac. Around the exterior of the sac a degree of irritation is induced, giving rise to adhesions, which unite it more or less firmly lo the surrounding parts. But these parts sufl^er other changes, paiticularly as the anenrismal tumour increases: they are mechanieally com- pressed or displaced ; or thev are worn away by absorption promoted by its pulsations, or by in- flammatory irritation terminating in ulceration and destruction of parts. This eflFect upon the adjoin- ing structures has been shown under the article Aneiirism of the Aorta, and it islherefore unne- cessary to illustrate it further. According to some authors, yu/>e a»/eur!sm consists of the ulceration or perforation of the internal coats, and of the dilatation of the external tunic only ; the changes above de-cribed constituting mixed aneurism. 48. c. Diffused aneurism, &;c. — In general the irritation created around the sac attacks, after a lime, the sac itself, occasioning its ulceration and perforation. Haemorrhage is then the result, which may be so great as at once to occasion death. It is frequently arrested by the anato- I 3 IIB ARTERIES — MoK mic il relation'^ of tlie pnrt : as when blood flows into the pericardium ; or wiien the blood passes into the parenchyma, or loose cellular tissue con- necting different organs or structures ; in which case it passes into the sta\e of diffused aneurism. In some cases the hemorrhage is arrested by adhesions formed around the sac, constituting a second envelope to it, which confines the blood, and prevents it for a time from being further eflused Perforation of the sac, however, may take place without hasmorrhage, or even the pro- (iucli n of diffused aneurism. This happens when a part in contact with the sac supjilies the place of that portion of its parietes which has been de- stroyed, and affords sufficient resistance to the escape of the blood. Thus we have seen that the blood, in aneurism of the Aorta, may actually wash the partially de-troyed vertebraj.no effusion taking place till still further destruction is occa- sioned ; and the tumour, in other cases, coming in contact with the periosteum, produces thicken- ing of this structure, or the secretion of an osseous matter from it which partially surrounds the sac, forming an envelope to it, and preventing the escape of its contents, until this also is destroyed. 49. In false and mixed aneurisms, the inner and middle coats are Hist perforated or ruptured, anfj the third coat either remains entire, or gives way at some remote period, and thus a secondary diffused aneurism is formed (§48.). But there is another form of diffused aneurism, in which all the coats of the vessel are ruptured or perforated at once, and the blood, passing entirely out of the vessel, forms no sac, but is diffused in the adjoin- ing parts; or it impacts the cellular and parenchy- matous structure in its vicinity into a species of sac or envelope ; or it is poured out into a shut cavity, or into some organ, whence it may be discharged externally, thus constituting primary diffused aneurism. In the majority of cases, how- ever, the aperture in the artery is the result of ulceration of one or more of the coats of the vessel, the remaining tunic giving way before the impetus of the circulation ; the blood being either confined by the surrounding parts, or escaping into a cavity, according to the situation of the artery, and of the apeiture in it. This perforation and ruptuie of all the coats occur chiefly in the arteries of in- ternal viscera, as in the splenic, hepatic, emulgent, iliac, &c. In a case recorded by Mr. Gunn {Edin. Med. and Snrg. Jmirn. vol. xxxi. p. 90.), these changes took place in the pulmonary artery. 60. Aneurisms may terminate fui-onrably, a spontaneous cure being sometimes effected" by some one of the following processes : — 1st, by a gradual contraction of the sac, and absorption of the coagula ; 2d, by the compression exerted by the sac upon the part of the artery immediately above it ; 3d, by gangrene of the sac and obliter- ation of the artery ; 4th, by iiiflammaticm or ab- Sfiesses in the vicinity, and the coagulable lymph thrown out, obliterating the aitery, as in the pre- ceding case; and 5th, by inflammation of the sac extending to the artery, and giving rise to ad- hesive inflammation of its interior, and ultimately to its obliteration. •01. li. JVakhowino of arteries is either con- genital or the effect of disease : when the latter, it i* very frequently associated with, or occasioned by, ossific deposits,— a change which will be consi- dered in the sequel. It is chiefly in the aorta aud EXT) SxnUCTURE OF. large vessels departing from it that we meet with either congenital or morbid narrowing. Congeni- tal contraction of the aorta is generally connected with extreme thinners of its parietes ; and in some cases this defective development has been so re- markable that the abdominal aorta has not equal led the usual size of the external iliac artery, 52. The contraction of the aorta, or of an arterial branch, may exist throughout its extent, or may be confined to a particular part. The abdominal portion of the aorta is more frequently contracted (see Aorta) than the thoracic; and when the former is narrowed, the latter is often dilated. Sometimes, however, the artery retains its natural calibre both above and below the constricted part : instances of this have been recorded by M. Paris, in the second volume of Desault'* Journal, and by M. Reynaud (Journ. Hehd. de Med. t. i. p. 161.). In many cases of constriction such as I have now noticed, it is difiScult to deter- mine whether this change has been congenital or the result of disease, inasmuch as the coats of the vessel have appeared unaltered from the healthy slate. But there can be no diflfieulty in deter- mining in favour of the latter alternative, when the coats of the contracted portion are thickened, or contain ossific deposits, or are otherwise changed. When the contraction is the result of disease, it is sometimes very remarkable, the cana' of the vessel being nearly obliterated. The narrowing found in the principal trunks or branches of ar- teries is almost always the result of inflammatory disease ; most commonly of ossific deposits, or of chronic inflammation. 53. C. Obliteration of arteries is frequently observed. This lesion may occur in any part of the system, even in the aorta itself, but it is most commonly met with in the second or third order of arteries. The smaller branches may also be ob- literated ; but they less frequently become the objects of examination than the larger trunks. The canal of an artery may be obliterated, 1st, by fibrinous coagula adhering firmly to the parietes of the vessel, or incorporated with them ; 2d, by the conversion of the vessel to a ligamentous chord ; 3d, by osseous concretions, or other mor- bid growths, filling entirely its cavity; and, 4tli, by the advanced progress of aneurism to a spon- taneous cure. 54. a. The Jirst species of obliteration has been found in the aorta by Professor Mon'ho {Edin. Journ. of Med. Scieyice, vol. ii. p. 351.); the part affected being somewhat contracted and filled up by a plug of fibrine, which adhered to the surface of the vessel by coagulable lymph. 'I'his form of ilisease is common in the arteries of the extre- mities, particularly the lower, and is sometimes owing to the rupture of the internal coat of the vessel. It occurs also in cases of gangrajna seni- lis, and, with the liiird species ($56.), is a fre- quent cause of the gangrene. It seems most pro- bable that it is a more immediate consequence oi inflammation than the secoud species. 55. b. The second form of obliteration is not uncommon in large branches of arteries, and has been found, in two cases, in the aorta : it is evi- dently a more remote cause of inflammation than the foregoing. The circulation being entirely ob- structed, by the coaj;ulable or fibrinous lymph poured out by the inflamed or ruptured internal membrane, and by the coagula thus formed, and ARTERIES— ]\ronBiD Stiuictiihe of. 119 beings kept up by the enlargement of collateral brandies, the obstructed part is deprived of its lunciions, and subsequently undergoes those changes which all vascular or other canals expe- rience when they no longer are pervious to the fluids which usually circulate through them, — they have the fibrinous coagula, which have been formed in their cavities, and the lymph effused between their coats, absorbed, and their coats be- come condensed into ligamentous chords. 66. c. 1 he thiid species has been met with in the aorta by Dr. Goodison (^Dub. Hasp. Rep. vol. ii. p. 193.), and M. Velpeau (Rev. Med. 1825, t. iii. p. 326.). In Dr. Goodison's case, an osseous deposit surrounded the canal of the vessel, which was completely filled at this part with a dense fleshy and hbrinous mass, resembling tlie structure of the heart. A similar obliteration also existed in the iliac arteries. In M. Vel- PEAu's case, the obliteration was owing to the formation of a scirrhous or carcinomatous tumour in the vessel, resembling similar tumours deve- loped in difl'erent parts of the body. Obliteration by polypous or other growths, by fibrinous coagula and coagulable lymph, by ossific deposits, &c. are also lound in large arterial branches, especially in those supplying the lowerexlieniiiies. The obliteration of the arteries by ossihcalion is one of the principal causes of the gangrene ot aged persons. When a considerable artery, or even the aorta, becomes either much obstructed, or entirely obliterated, in any of the above ways, the circulation is generally carried on by enlarged collateral vessels. 67. d. I'he fourth species has been observed in several laige aiterial trunks. Dr. Monro's case of obliteration of the aorta may be partly ascribed to this cau?e ; the coats of the vessel, although entire, being dilated below the constricted part. 58. D. AUJOMINOUS AND PURULENT AIaITER. — M. (Jendiun {Hist. Anat. des liijium. t. ii. p. 9.) has clearly proved, by his experiments, that, when an artery is aitificially irritated, its parietes soon become injected, swollen, softened, and infiltrated by a serous Huid ; its internal sur- face is coated by an ulbiiminous exudation, and coUeciions of pus form, either in the interior of the ves-el, or between its coats. He has, moreover, demonstrated that, if the artery continues full of blood during the experiment, this fluid is coagu- lated, and altered in a variety ot ways by the mor- bid secretion poured into it from the internal surface of the inflamed vessel. Similar appearances have been observed from disease, particularly in the aorta and large arterial trunks, where they are most obvious. Mr. Hodgson and M. Bouillaud found the internal surface of the aorta lined with a perfect _/u/se membrane ; and when this was re- iwoved, the surlace of the vessel was of a briglit red colour. M. Andkal has observed the inter- nal membrane of the artery raised by small abs- cesses, sometimes as laige as the size of a nut, situated between the internal and middle coats. It is probably to the bursting of those into the vessel that ulceration of the internal tunics is owing. Piis is also sometimes found in the in- terior of arteries, either unmixed with the blood, or mixed with it and altering its appearance. 59. E. AiniiROMATOus matter is frequently found between the inner and middle coats of ar- teries. It was first noticed in this situation by MoNiio and IIalieh. It is generally of the consistence of suet, of a fatty opacjue iippcai- ance, is greasy to the touch, with niinute gritty particles thinly scattered through it. In some cases it resembles a semi-concrete pus, and seems to result from the changes which pus may have undergone subsequently to its secretion. In other cases the atheromatous matter has a cheesy ap- pearance, or It abounds in gritty particles, which occasionally even exceed the suety or fatty part ; and the deposition thus passes into the form of a calcareous concretion. Jt is extremely probable that these varieties of morbid formation are con- nected with chronic inflammatory action of the coats of the vessel. 60. A variety of the atheromatous matter has been described by Mohcagni, Scarpa, Sienizel, and Craigie, under the denomination of steuto- matous deposition, 'i'he name, however, as Dr. Craigie has remarked, is not well chosen, inas- much as this formation is not adipose, but a firm cheesy or waxy matter, of a yellowish or fawn colour. It seems merely a more concrete variety ot the foregoing, and differing from it chiefly in the absence of gritty particles. It is moie fre- quently found at the bifurcations of arteries, but it is not limited to those situations; and is gene- rally deposited between the inner and middle coats. When the quantity of this matter is con- siderable, it encroaches on the calibre of the ves- sel. This substance is met with either alone, or with patches of calcareous deposit. It probably derives its origin fiorn a similar source to the atheromatous matter ; and, according to Scarpa, always terminates in ulceration ; but this is not invariably the case, as it has been observed, par- ticularly when unattended with calcareous torm- ations, distending the coats of the vessel to a great extent without any ulceration. This change, however, takes place very generally, either when the deposition of this matter is considerable, or when associated with calcareous furmations. W hen ulceration takes place, the coats ol the ves- sel are soon destroyed to a greater or less extent, and rupture follows ; taking place, as shown by JMr. Hodgson, in a transverse direction to the axis of the vessel, and giving rise to extensive or fatal haemorrhage, or to circumscribed or diffused aneurism, according to the situation of the apei- ture in the vessel. 61. F. Calcareous or ossemis coiicretioiis are the most frequent moibid appearances presented by arteries. These concretions, however, differ from healthy bone chiefly in wanting the fibrous struc- ture, in not being necessarily deposited in a car- tilaginous matrix, in consisting of a larger pro- portion of phosphate of lime, and less animal matter, and m presenting an irregular, homo- geneous, and unorganised appearance. Bichat and Baillie considered that the larger proportion of persons above sixty years of age have some part of the arterial system affected by these tonn- ations. This change is very seldom observed in early life. Young lound it, however, in an infant ; Wilson in a young child; and Andral in the aorta of acliildofeightyearsol age. M. Andral has met with ossific laminaj in the aorta, in five or six persons of from eighteen to twenty-lour years of age : and an extensive ossification of the superior mesenterie artery of a person not ([uite thirty. This species of formation always is seatid 1 4 120 ARTERIES — Ossification or. between the mu-cular coat and the internal mem- brane, which it olten detaches from its connec- tiiins ; and it originates either in the atheromatous matter described (§ 59.), the place of which it sometimes take^ ; or in those whitish patches al- ready noticed, which apparently consist of an alhuminoiis exudation formed between the inner and middle coat<, and" which pass from the albu- minou-i, first to the cartilaginous state, and sub- sequently to that of bone. 62. a. But this is not the only change which the vessel undergoes , for whilst the calcareous deposits are going forward, the middle coat be- comes either hypertrophied, thuscontributing to the thickened appearance winch the vessel sometimes presents, or atrophied, being apparently replaced by the calcareous concretion, and leading to the mistaken opinion that this coat itself has been transformed into bone. The osseous concretions exist in various forms : sometimes they consist of minute grains ; at other times of irregular plates of different sizes ; occasionally they incrust the artery and convert it into an inflexible tube ; and, more rarely, they give the sensation of a number of small bodies moving on each other, and as if jointed together. 63. The ossific concretions may be very con- siderable, without in any way changing the calibre or even the form of the vessel ; or they may pro- ject into it so considerably as to obstruct, or even to obliterate its canal. They thus occasion gangra-na senilis. Is has even been supposed, — and the opinion is very probable, — that they may project through, or penetrate the internal membrane, and fall into the cavity of the vessel ; and, being conveyed onwards with the current of blood until they arrive at arteries of smaller ca- libre, may thus completely obstruct them. The calcareous concrelioiis found in some rare instances plugging up the canal of the vessel, evidently are produced in this way. 64. h. As to the comparative frequency of this lesion in various arteries, I may add a few re- marks, derived from the interesting materials supplied by M. Andhal {Anat. Path. t. ii. p. 393.). The aorta is the most liable of any to ossification in some part or another; but every one of the branches proceeding from it may like- wise be the seat of this change. The coronary arteries are frequently ossified, both in their trunks and in their subdivisions. The large ves- sels which arise from the arch of the aorta often present at their origin a bony ridge projecting into their interior. The cerebral arteries of old per- sons are frequently found studded with cariilagi- nous and osseous lamina;; and M. Bouim.aud has shown that this change disposes remarkably to apo|)lexy with sanguineous extravasation. Os- sification is very common in the splenic artery, but exceedingly rare in the hepatic, and coronary arlery of the stomach. A bony ridge is ol'len found at the origin of the common iliacs. The arteries of the lower extremities are not infre- quently the seat of these concretions ; and they sometimes occur in the radial arte y of aged [)er- Bons. IM. Anduai, has never met with this alteration in the hypogastric artery. llAr.r.Fn met with it once in this vessel (Opusc. I'atli. Ohs.59.); and this is the only case ol the kind on record. — All the morbid depositions desciibed above liave been found in the pulmonary artery, but much more rarely than in the aorta and vessels proceeding from it. 65. c. Origin of osseous formatiuns in the or- teries. — The Ossification of arteries has been ascribed by many authors to slight chronic in- flammatory action. The experiments of M. Raykr and M. Cruveilhier seem to confirm this infer- ence,.as an occasional occurrence at least, parii- cularly in the fibrous and cartilaginous structures : increased vascular action of those structures, aiti- ficially excited, being generally followed by ossiform depositions ; but, in a number of cases, particularly in those where the deposit takes place in the cellular tissues, no inflammatory ac- tion can be detected previously to this change : besides, increased vascular action frequently exists, without being attended with ossiform de- positions. This lesion therefore cannot be al- together ascribed to this cause, although frequently resulting from it, in a certain order of tissues. It would be more correct to consider it merely as a consequence of disorder of the natural proci-ss of nutrition and secretion, frequently induced, in particular tissues, by a chronic state of inflam- matory action. But to what cause is this disorder of the nutritive function to be imputed, particu- larly when it occurs in parts which have not evinced any sign of inflammatory action, as in the cellular tissue connecting the internal coats of arteries ? The importance of this inquiry may appear from the very great proportion of persons, in advanced years, who are affected, in some organ or tissue, with this lesion, and from the remarkable part it performs in the production of a number of dangerous diseases. 66. In answer to this, M. Andral very plau- sibly observes, that physicians have frequently noticed the existence or succession of three dif- ferent forms of calcareous productions in persons of a gouty diathesis : 1st, gravel and urinary calculi; 2d, hard concretions in the small joints; and, 3d, ossiform productions in the arterial sys- tem and other parts. Is it not, therefore, probable that morbid ossification proceeds from a similar cause to those other calcareous formations? We have seen that gout generally originates in an excessive use of animal food, conjoined with de- ficient assimilative and secreting powers of the frame. The highly azotised blocd of a person thus circumstanced becomes surcharged with urea and phosphate of lime, as evinced by the state of the urinary secretions, which always, in such cases, abounds with uric acid and the earthy salts. The experiments of M. Magundie have proved that by changing the diet of a person who has been living chiefly upon animal food, and by substituting substances containing no azote, the uric acid and phosphates disappear from the urine. May we not, therefore, infer that in consequence of the excessive use of animal food conjoined with imperfect assimilative and secreting powers, these substances will accumu- late in the blood to a hurtful extent ; the urinary organs being unable to eliminate them entirely from the circulating fluid ? The necessary result of this state of the blooil will be, that these sub- stances will occasionally be deposited in other parts, giving origin to the uric acid concretions found in the small joints, nr.d to the phosphate of lime deposits found in the arterial system and some other parts. From this it will be apparent ARTERIES — Theatmentof TiiEin Diseapes. 121 that the ossific formations met with in the arteries | tendency, also, to limit tiie iiifiiimrnation by llie are derived tVom a similar origin to that wliieh ] foimation of coagulnble lympli, when the period has been more fully explained under the articles | of resolution is past, may also be overcome by loo Gout and Urinary Calculi. The increased j great depression of the vital energies, wliicli ought vascularity, observed frequently to co-exist with ! therefore to bfe supported in extreme cases, and not the morbid secretion of calcareous matter, may depressed too low in others. proceed from the irritation produced in the capil laries by the moibid matters circulating in them ; or it may be a necessary attendant upon the se- cretory process, especially when this process is of a morbid description ; or ihe accidental occur- rence of irritation and increased vascular action 70. li. The more chronic states of arteritis require cooling purgatives, occasional depletions, and a low refiigerant diet and regimen. A vege- table, particularly a farinaceous diet, is extremely serviceable in these states of the disease, chiefly by preventing the consequences to which they in the interior coats of the vessel may prove tlie I usually lead. The richer and more stimulatim; determining cause of the ossiform deposit, to the , kinds of animal food, and particularly pork, should formation of which a disposition harl previously j be con^taiitly avoided, and all tendency to pie- existed, owing to the excessive abundance of the phosphates in the bloud. If this explanation of the origin of ossification in the arteries be correct, a rational method of preventing and combating this lesion is presented to us for adoption. 67. V. TnEATMENT. — A. Tile more acute states nf arteritis re(iuire the same general principles and details of treatment as inflammations of other parts. General and local depletions, calomel and oleaginous purgatives, cathartic enemata, dia- phoretics consisting chiefly of camphor, antimony, and opium, tkc. (F. 39. 184. 358. 460.); cool- ing diluents, and the rest of the antiphlogistic rejiimen, are indispensably requisite. After a copious depletion, practised so as not to occasion full syncope, the following wdl be found of service in preventing the re-accession of increased vascu- lar action. No. 33. R. Camphorae rnsse gr. iij v.; Pulv. Jacobi Verigr.v.(vel Antiiiionii Potassio-Tart. gr. ss.^; Calomel. gr. xij. ; Opii Puri gr. ij iij. ; Coiiserv. Kosar. q. s. ut tiat Bolus, statira post venaesectionem capiendus. 68. In the more acute states of arteritis, digi- thora suppressed or subdued. In the chronic as well as the acute diseases of arteries, physical and moral tranquillity is particularly required. Tlie abdominal secretions and excretions ought to be duly examined and regulated, \indue sinking of the vital energies prevented or counteracted, pure air prescribed, and due attention paid to the digestive functions. 71. C. The consequences of inflammation of ar- teries, whether those more palpable changes which constitute the different kinds etns of /euri and opium (F. 206.), alter depletions have of the blood in the vessel ; and that, therelure. been practised. Colchicum may also be given, or substituted for digitalis; but these medicines re- quire great caution in their exhibition, particu- larly after large depletions, and when antimonials precede or accompany them. The diet ought to be very low, cooling, and chiefly farinaceous; and, during recovery, the more heating kinds of animal food should be abstained from. During the disease, as well as during convalescence, per- fect tranquillity of body and mind should be in- sisted on. 69. In some states of acute arteritis, it may not be advisable to lower the powers of life too much ; as we may thereby ri^k the occurrence of arterial throbbings, the extension of di--ease along the internal membrane of the vessel, and the vitiation of the circulating mass by the secretion poured into it from the inflamed surface. The the treatment which is solely directed to this point must be deficient. The suggestions novv cfltred {§§ 69, 70.), as well as those stated in the article on Aneurism of the Aorta, will be suffi- cient to guide the practitioner in this respect. 72. D. The complicutiims of inflammations of arteries, and theii' conseciuences (^ 32. et seq.), require attention to the fact, that, when arteritis supervenes in the course of other diseases, it is generally during those stages which are charac- terised by depression- of the constitutional powers, when the circulating fluid becomes materially changed from its healthy condition, and most probably loaded with an unusual quantity "of unassimilated, morbid, or irritating materials. In- deeil, these are the circumstances which favour the occurrence of all inflammations affecting the different circulating systems— the lymphatic as 122 ARTS AND EMPLOYMENTS— AS Causes of Disease. well as the venous ; and they account at the same time for the very fre(]uent aseociation of arteritis with phlebitis, particularly in the last stages of febrile anil eruptive disease*. 1 hese considerations n iturally suggest the propriety of having recourse to such measures as may be best suited to indi- vidual cases for the prevention of inordinate de- pression of the energies of life, during the advanced stages of diseases, when we fear the supervention or the existence of arteritis ; or as may support those energies, whilst we excite the organs whose functions are chiefly to eliminate irritating and hurtful matters from the circulation. By thus opposing too great depression, turtlier deterioration of tlie blood is more likely to be prevented than by any other indication of cure ; whilst the re- moval of the cause, — the source of irritation of the internal surface of the vessels, — presents a probable chance of the disappearance of its effects. (See Acuta — Diseases oj.) Bibliography A. Inflartunation and its Consequences. — Lnngsverl, l)e Ait.et Venar. Adfectibus, Prag. 1764 — Murgagni, De Sed. et Caus. Morb., epist. xxvi. art. 35, 36. — Oi/i'/ie,Ue Morbis Itecent. Natorum. Lips. 1773 J. P.Frank, De Curandis Hominum Mnrbis, t. ii. Manh. J792 —Sckmtick, Observat. Med. de Vasor. Satiguif. In- flammatione. Heidelb. 1794 Spattgenberg, in Hurti's Archiv fiir Med. &c., b. v. 2 belt, n. I — Sanse, Dissert, de Vasor. Sanguif. Inflanimatione. Hal. 1797 — Portal, Anatomic Meduale, t. iii. p. 127. Pai is, 1803. — Schivilgui, jn bibliotlieque Mtdicale, t ■x.\\.—Treviramis , Biologie, b. V. p. 414. — J. Hodgson. Diseases of the Arteries and Veins. Lond. 1815 Jiemrr, Dissert.de Plethora Sanguin. Helmst. 1797 Kieysig, Herzkranklieiten, iii. theil. Ber. 1817. s. 2G9 — Dalbant, Oliservat. pour servir a I'Hist. de I'Arterite. Paris, \%\'i. — Bryani, in Loud. Med.Repos.t. xviii.p.6 raidy,\n Journ. Complement. Aout, \>il'J. — Back, in Revue Medicale, Mai, 1820.— Kertnedy, in Ju/insou's Med. Chirurg. Review, vol. ii. p. 60 Breschtt, De I'Arterite, Jonrn. de Progres de .Scien. Med. t. xvii. p. 119. Par. 1829 — BuuiUaud, Art. Arterite, in Diction, de Med. et Cliirurg. Pratique, t. iii. Par. 1S29. _ Langenbeck, Nosol. und Therapie d. Chir. Krankh. bd. i. p. 589. Gotting. 1822.— A'aM»n«nn, art. Arteritis, Medicin. Chirurg. Encyclocadie, band iii. Berlin, 1829. — V.N Hildenbrand, Institutiones Practico- Medicae, t. iii p. 21. Wien, 1822. B. Morbid Structures, ^c Cowprr, Philosoph. Trans. No. 285. p. 1391 Aaish, ibid. No. 309. p. •2-26.—Murgng7ii, De Sed. et Cans. Morb., epist. xxiii. art. iv. 6.. xlvi. art. 'JO — Fo.sf//M.<, Dissert, sistens Moibos Arteriarum, &c. Jena, 1757. — Gemwa, in Halter's Biblioth. Med. Pract. ii.p. VJ%.— iyalter, Obueiv. Aiiat. p. 44 — Stenstel, Haller's Di>p. ad Morb. Hisioriam, &r. t. ii. p. biT. — Bicliaf, Aiiatomip Generate, t. ii. p. 'i\i'i.—Baillie, Trans, of So- ciety lor Imp. of Med. and Chir. Ivi.owledge, vol. ii. p. y.Vi.— JVcniiel, in IJuJeland's Journ. der Pract. Arzeney- kunde, b. viii. St. 4." p. 100 Scarpa, SuU' Aneurismo, cap. v. § 22. — C/iaujisier, in Journ. Gener. de Med. Mars, IKll, p. 3]8. — Maunoir, in iliid. Mars, 181i, p. SzS.— Jldgstrom, in Hnjcland und Ilimly, Jonrn. der Pract. Heilk Jul. 1811, p. y>\.— Trovers, in Med. and Chirurg. Trans, vol. iv. ji. 438. _lc//o/y, ibid. vol. xii. p. 505. — Muudiiii, Archives Ccii. de Med. t. v. p 137.— Turner, Transac. of M( d. and Cliirurg. Soc. of Edin. vol. iii. p. lOn. Craifiie. Klcmcnts of Gen. and Pathol. Anatomy, J). 87. — A. Monro, ui i:din. Journ. of Med. Sciences, vol. ii. p. 3^\. — Andral, On I'alhological Anatomy, by Town- send, vol. ii. p. 3C7.- Oulhrie, The I)ise.ises and Injuries of Arteries, &c. Lond. 1830. (A work that should be in the hands of every piactitioner.) AR'l IIIUTIS. See Gout. AK'IS AM. KMl'LOYMEN'iS Classif, — Paiiioi.ogv. — Lliolof^ii. 1. An inquiry iiiio the diseases caused by the prosecution ot the various arts of civilised life is of the utmost inriporlance to the scientific pro- fessor of medicine in ail countries, but particularly in this; for in no other country are ihe useful arts to exiensively pro^ecuttd as in (Jieal liiituin. 'J'lie great impoitunce of the subject has been acknowledged by the success of the able works ot 2. As it would be foreign to my plan to take into consideration at this place the diseases occa- sioned by the numerous arts which furnish em- ployment and subsistence for a very large part of the population of this and many other countries, particularly as these diseases will be considered in their more important relations in other places, and many of them under distinct articles ; 1 will here confine mvself to a succinct account of the effects which the prosecution of the various useful arts directly or indirectly produces in the frame ; interspersed with a few remarks as to their influ- ence in modifying the characters of various dis- eases, and as to the means by which their injurious effects may be partially prevented or counteracted. 3. In offering these observations, I will only, in some respects, observe the arrangement adopted by Ramazzini, and closely followed by Fourcroy and Patissier. This arrangement is founded on the nature of the causes producing the diseases to which artisans are liable. The First Class of causes consists — 1st, Of conjinemeiii, and insnf- Jicient ventilation; 2d, Of undue exertion; and, 3d, Of sedentary habits. The Seconu Class com- prehends — 1st, Undue exertion of particular parts, and insufficient exercise of other parts ; 2d, Unnatural or constrained positions in different emptoiftnents ; and 3d, Temperature and moisture. The Third Class embraces those causes which consist of material molecules, and which, coming directly or mediately in contact with the body, in the state either of vapour or of minute disinte- gration, penetrate the organs, and disorder their functions. These are — 1st, Mineral molecules; 2d, Vegetable molecules ; 3d, Animal molecules ; and, 4th, Mineral and vegetable molecules acting mechanically. On the operation and effects of each of these, as being intimately connected with the nature, complication, and removal of diseases, I proceed to offer a few remarks. 4. I. Class first. — 1st, The hurtj'ul infltienceof confinement and of insufficient ventilation is great in proportion to tlie youth or early years of tlio.^e who are thus circumstanced. In the majority of factories, artisans are congregated in great num- bers, necessarily confined during the greater part of the day in the same apartment, which, being usually warmed by artificial lieat, — by pipes con- ducting heated air or steam, — have not the air renewed with that rapidity which necessarily ob- tains in apartments provided with the fire-places in common use. The consequences are, that those confined in them breathe an impurer air than under ordinary circumstances ; and experience the debilitating influence occasioned by an atmosphere loaded with an increased quantity of carbonic acid gas and animal effluvia. 5. Persons who have already attained to their full growth, and tho.se particularly who have nearly reached the meridian of life, seldom ex- perience the deleterious effects of confinement under such circumstances, to nearly the same ex- lent as those in early life. When the subject was brought before parliament by Sir Robert Peel, Mr. Owen, of New Lanark, stated, respecting the children employed in his manufactory, that, iilthough they were extremely well fed, clothed, and lodged, looked fresh, and, to a superficial observer, were healthy in their countenances, yet Ramaz/.i.m, jMirat, Patissier, aiitl TiiAtKUAii, their limbs were geneially deformed, their growth on the diseases of ailisuns. I stunted, and they were incapable of making much ARTS AND EMPLOYINIEN progress in the first rudiments of education. This statement, which appears to have been made as a result of large experience, agrees with the observ- ations of other able men. The evidence of Sir AsTi.EV Cooper is even still more decided, and is perfectly in accordance with the experience of every competent judge. The result of conHne- nient, this eminent surgeon state'^, is not only to stunt the growth, but to produce deformity. Every traveller in countiie'^, the population of which consists chiefly of those whose avocations bring them much in the open air, or in agricultural di-:tricts, must have remarked not only the much more lully developed frames, and larger lower extremities, of the inhabitants of those parts, but aUo the more phlogistic or inflammatory charac- ters of their disorders, and their greater vital re- sistance and powers of restoration when exposed to the causes, or suffering from attacks of disease, than are manifested by the inhabitants of crowded iiianutacturing towns. 6. Not only is confinement in itself detrimental to the frame, particularly during the epochs of developenient of the various structures of the body, when air and exercise are nearly as requi- site as food to their perfection, but the construc- tion of the apartments, the want of ventilation, the accumulation of animal effluvia, and the moral depravation consequent upon continued assemblages of persons little under physical and moral control, essentially increase its injurious efl^fcts, and co-operate with it in impressing an asthenic character on the frame ; in dispo-ing to the formation of tubercles, and to the strumous diathesis; in depressing the vital energies and uiental manifestations ; and, con?equently, in dis- posing the body the more to the usual exciting causes of disease, and the mind to vicious habits and indulgences. 7. 2d, Over eiertion is a very frequent cause of disease among many artisans ; and, like con- finement, it is the more injurious the earlier in life it comes into operation. In the lower ani- mals, particularly in the horse, the consequences of over-exertion are fully manifested. '1 his ani- mal seldom reaches one half of its natural life as eniployed in this and many other countries. As to the effects of over-exertion on man, much will depend upon his habits and modes of living. When well fed, and of regular habits, its injurious con- sequences are neither so great, nor so snon ap- pear, as when he is poorly fed or addicted to the use of spirituous liquors. 8. Over-exertion shortens life, 1st, by injuring the continuity, cohesion, or relative situation of various parts; 2d, by inducing that degree of ex- haustion which runs on to irremediable or falni disease; and, 3d, by that gradual and insensible expenditure of vital influence, beyond the power of reinforcing it, whereby the mean duration of human life is shortened. The trades which chiefly illustrate the above positions are coal-heavers, na- vigators or ballast-dredgers, smiths, miners, &c. 9. It should not be overlooked, that in many trades the artisan is not only subjected to confine- ment in close and imperfectly ventilated apart- ments, but is at the same time obliged to over- exert his physical powers. In such cases the ill effects are necessarily greatly augmented ; more especially in children or very young persons, who are naturally impatient both of confinement and TS — A3 Causes op Disease. 123 over-exertion ; and in ihem particularly are the injurious effects, moral as well as physical, chiefly manifested. JVlany of those who become the most drunken, immoral, or feloniously depraved, have been initiated in vice from the associations formed in factories. 10. 3d, Sedentary habits, are also adverse to health, but only in a negative manner, as respect's persons living in well ventilated and wholesome situations. The simple neglect of due exercise, however, is after a time generally productive of disease, owing both to its effects upon the nervous and muscular energies — the manifestation of all our functions being improved by a moderate ex- ertion of them— and to its influence on the se- cretions and excretions, which require a certain degree of muscular exercise for their promotion. Literary men suffer in a particular manner from want of bodily exercise, chiefly owing to the over-exertion of the mental powers, the bent position of the trunk, and the stagnant air of close apartments. Clerks, and various artisans, suffer also from the same cause, particularly tailnrs, shoemakers, watchmakers, weavers, jewellers, &c. In some of these, the pressure made upon the lower part of the sternum and stomach proves very injurious. 11. Mr. DoBSON furnishes very instructive in- formation as to the eflPects of confinement to ii particular posture and in a close atmosphere upon tailors. Of 334 men, employed by Stultz &, Co., in London, six are above sixty years of age ; fourteen about fifty ; and the greater number of the remainder about forty. Three of the six above sixty have curvature of the spine. Their most common affections are dyspepsia, diarrhea, headach. giddiness, and anal fistula, to wtiich latter they are so subject that they have a " fistulu club." They attribute their complaints to tlie bent posture of their bodies for thirteen hours a day, and the heat of the work-hop. Tailors are .the most intemperate set of workmen in London. A large proportion of them die annually of phthisis. (TiiACKn AH, &c. p. 17.) The diseases most commonly observed amongst shoemakers are chronic inflammations of the stomach, liver, and bowels, occasioned by the pressure of the last on the lower part of the sternum, where it occa- sions, in those who are long-lived, a considerable depression. 12. The sitting posture, when long or habitu- ally continuerl, is very huriful in persons of sedentary habits. M. Patissier remarks, that it causes the lymphatic to predominate over the nervous, sanguiferous, and muscular diathesis. Artisans and others who adopt it early in life, rarely acquire vigorous constitutions, or reach old age, although old age soon overtakes them. Persons with this habit soon become subject to dyspeptic disorders, to aflPections of the kidneys and urinary organs, to constipation, hccmorrhoiils, various cachectic afl'ections, obesity, and, in fe- males, to fluor albus, and difficult or irregular menstruation. When, in addition to along-con- tinued sitting posture, the trunk is bent, and pressure frequently made over the epigastrium and sternum, as with shoemakers, weavers, at- torneys' or bankers' clerks, ice, gastrodynia, nervous palpitations, chronic gastiitis, pulmonary consumption, chronic pericarditis, and imperfect digestion, excretion, and assimilation, amounting 124 ARTS AND EMPLOYMENTS — AS Causes of Disease. even to complete astlienia, are the not infrequent re?ults. The luiitful eiTects of the sitting posture and bent state of the trunk are much increased by k, and by pressing the chest against it, as well as by the silting posture too long con- tinued, would be much benefited by frequently, or even occasionally, standing at a raised de.-k. Tailors and shoemakers are also very liable to suffer from this cause. The stooping posture is not infrequently productive of cerebral and nervous afl'eclioiis ; hence the frequency of them in gar- deners. Working in constrained positions shows its effects most decidedly in miners and colliers, who labour chiefly in the sitting or kneeling pos- ture, frequently with the body bent in the greatest degree, in an unnatural atmosphere, often con- taining hydrogen, or carbureited hydrogen, and carbonic acid gases, and with artificial light. They are, moreover, exposed to changes of air, and oc- casionally work with their feet in water. They are generally spare men, with slightly curved spine, and bowed legs. When the dirt with which their skin is usually loaded is removed, the com- plexion seenis sallow and unhealthy. 'J'heir com* plaints are asthma, rheumatism, disorders of the head, intolerance of light, &c., evidently resulting from the circumstance just stated connected with their employment, and their exclusion from the beneficial influence of sunshine, light, and air. 'J'hey are not generally very intemperate, yet they seldom live beyond fifty. 18. 3d, Temperature and moisture, and par- ticularly rapid vicissitudes of ihem, are extremely j)roductive of disease amongst artisans, but chiefly from negligence, and the want of caution in ex- posures to them. Forgers, glass-blowers, brass and iron founders, l)akers, biewers and various other classes of artisans, are liable to be affected by the high temperature in which they work, and by impiudent exposure to cold when perspiring, and olten without any additional clothing. The most fref|U(nt consequences are checked perspira- tions, producing catarrhs, rheumatism, bronchitis, asthma, and inflanmiation of the lungs, or of some one of the abdominal viscera. 19. a. The bad effects of moisture only are pro- ARTS AND EMPLOYMENTS — AS Causes of Disease. 12^ blematical, or at least not very remarkable. It is only from the circums^tance of its being either tlie cause of a greatly depressed temperature, or the very common vehicle in which other agents oi disease are dissolved, and thereby diffused in the air, or applied in a more active slate to the different organs, particulaily the respiratory, that it becomes a very active agent of disease, as is demonstrated by the etioIog\ of the intertropical and malignant diseases. When exposure of the external surface of the body to moisture is in- jurious, tiie mischief is caused chiefly by the de- pressing effects of the low temperature which it occasions. The animal heat is less rapidly car- ried off by entire submersion in water, than by aspersion merely. In the former case there is no evaporation, in the latter more or less evaporation takes place, and much cold is theieby generated. The histories of shipwrecks abound in proofs of this position. Dr. Currie, in his well known work, has adduced a striking example of it. It is owing to the evaporation which takes place from damp or moist clothes, and the consequent rapid reduction of their temperaiuie, that disease is occasioned by them, 20. Artisans who, from the laborious nature of tluir occupations, perspire copiously, and thereby render their clothes damp, seldom suffer from this cause while they continue their labours ; but when they relax, or desist altogether, their wear- ing the moistened clothes, particularly in a state of exhaustion, is frequently productive of disease. Inattention to, or inability of, changing damp or wet clothes, are the most common causes of the disorders met with in milkmen, gardeners, fisher- men, washerwomen, fullers, water carriers, and persons whose occupations are chiefly out of doors. In marshy or unhealthy localities, the effects ol this cause are greatly increased. 1'he steepers and cleaners of hemp and flax are extremely liable to inlermittents, ouing to the conjunction of vege- table effluvia with moisture. Even peisoiis con- stantly employed in crowded factories, where the stagnant air becomes loaded with the foul vapours exhaled from the lungs of a number of persons, may have their clothes so saturated with moisture fis thereby to occasion the usual consequences of cold, when exposed to a drier or opener air. It should be kept in recollection, that cold, when it continues to act for any time upon the frame, is sedative — it depresses the vital influence ; and, when acting partially, or directed to parts of the body only, that it is one of the most productive causes of alieied energy and sensibility of the nervous system of such part, of irregular di.-tri- butions of vital influence and of the blood, and consequently fruitful of inflammations, and of morbid discharges and actions. 21. I>. The prevention of diseases resulting from the description of causes adduced under this head is important. Wearing flannel next the skin is amongst the most efHcacious. For those who are exposed to moisture from out-of-door vocations, the use of external garments of dressed skins, or of tanned leather, or of oil-skin, during the time of exposure, is extremely serviceable, and is yenerally adopted by the fishermen of northern countries. 22. III. Class Third. — \!it,The muiera I nwle- cules, which, either in the form of vapour or of minute disintegration, come in contact directly or mediately with various parts of the body, are extremely frequent causes of disease in artisans ; and some of the maladies they produce are pos- sessed of specific characters, 23. A. Mercury is one of the most common causes of the diseases of artificers, particularly workmen in quicksilver mines, glass-platers, gildeis of buttons, toys, &:c. Dr. Gusse has re- niaiked the greatly increased sensibility of those persons to cold, even to the slightest diminution of temjierature, evidently owing to depression of the vital energy and organic action-, and con- sequently of the process of animal calorification. Persons long or habitually exposed to fumes of quicksilver are generally affected with ulcerations of the mouMi and fauces ; painful or rlieumatic affections of the periosteum, joints, limbs, and ligaments, particularly after exposure to cold : eruptions on the surface of the body, and all the affections to which the term pseudo-'-yphilis has been applied; as well as many of those which are usually denominated cachectic. The effects are altogether the same, although slower in their accession and piogress, as those which result from a too long continued, but not violent mercurial course. 24. a. Amongst the most important of the affec- tions produced by the fumes or oxides of mercury in artisans is the mercitritil -pahif, the tremhtemeut mercuriel of the French pathologi>ts. It is almost, but certainly not altogether, peculiar to these persons. Its approach is generally gradual, but occasionally sudden ; it usually commences with slight convulsive snatches, followed by agitations and tremors of the affected muscles, particularly those of the arms, which it first attacks, occurring as it commonly does amongst the workers in nier- cury. If the person continues his employment, the affection extends to the lower extremities anil whole body. He becomes incapable of muscular exertion, and even of the avocations requiring tlas least precision of muscular action. Restlessness, falling out of the teeth, constipation or disorder of the bowels, a dry and brownish state ol' thj skin, slight atonic convulsions, cephalalgia, de- lirium, great depression of the nervous power-, and of the general health, take place, in which state the patient may continue to live for many years. (IMerat and Colson.) Although it i.5 chiefly long-continued exposures to mercurial preparations which produce this affection, a single exposure to the fumes, eveu for a lew lioun:, when they float in the air, may occasion it ; the effects being both rapid and violent when their vapours are inhaled with the atmosphere, and act upon the extensive surface of the bronchial tubes and air-cells. 25. b. The habits of the workmen exposed to the fumes or oxides of nieicury, render the treatment of this affection extremely dithcult, owing chiefly to the circumstance of their frequent recourse to spirituous liquors, for the temporary advantage they afford, and to their deferring having recourse to medical aid until the disease becomes con- firmed. In recent cases, leaving off the trade that occasioned it will alone produce a cure. In long-continued or confirmed cases, benefit is ob- tained with much more difficulty ; and, when pro- cured, the disorder is extremely apt to retuin alter the sligh.test exposure to mercurial fumes. De Haen prescribed eledricity in the cases wliicU 126 ARTS AND EMPLOYMENTS — as Cavses of Disease. occurred to him. Lettsoji recommended sul- phur ; and I believe that its good effects are very considerable. In a case which lately came be- fore me, of violent cephalalgia, with muscular tremors, &c., after a severe mercurial course, large doses of sul, hur merely, given every night ill treacle, produced a cure in a few days. JMr. Pearson chiefly relied upon exposure to a dry and open air. Sementini slates, that he obtnined uniform advantage from the internal use of the nitrate of silver, beginning with an eighth of a grain, and gradually increasing the dose to three grains in the dny. I have lately em|iloyed the tincture of iodine in two cases of this aflTection wilii success ; and in one in-tance I prescribed strychnine, but lost sight of the patient before its effects were apparent. Mr. Eart.e (^Lond. Med. Gaz. vol. xi. p. 31.) gave five grains of the extract of conium, three tmies a day, with benefit. 26. c. It is obvious that it is of importance to be in the possession of plans to prevent the injurious effects of mercury on those employed in the arts in which it is used. These are sufficiently sim- ple, and consist ciiiefly of common attention to cleanliness, and avoiiiing the fumes of the mineral during the various p;irts of the processes of gilding. Workmen should avoid touching the amalgams that are used with the naked hand ; and ought to make frequent ablutions, particu- larly before taking a meal. During the process of volatilising the mercury by heat, the utmost caution should be exercised in performing the operation with a stove in which the current of air is very brisk, so that the fumes may be carried fully up the flue. In most of the manufactories in tiiis country, the stoves are now sufficiently well con- structed for this purpose, the carelessness of the artisan being the chief cause of danger from his occupation. M. Jussieu states, that the free workmen in the large cjuicksilver mines at Alma- den, who took care to change their whole dress, and attended to cleaidiness, were but little af- fected by their occupation ; but that the slaves, who could not afford a change of raiment, and took iheir meals in the mines generally without ablu- tions, were subject to swellings of the parotids, aphthous sore throat, salivation, eruptions, and tremors. (M^m de I'Acad. des Sciences, 1719, p. 474.) 27, B, Lead. — a. Injurious effects from lead, in the various states in which it is used, are very frequent and often fatal. Its oxides may be car- ried off in a state of vapour, dissolved in volatile substances, as by turpentine in painting, and thus be inhaled into the lungs, and act most injuriously on the frame. It may also pass into the alimentary canal in various ways, or it may be absorbed from the skin, particularly of the hands, where it wdl both ait locally, and be carried into the system, and |)roduce its efliects as when introduced by the two former channels. These effects are chiefly lead colic and paralysis. The workmen employed in lead mines, those who are engaged in procur- ing it from its ores, who cast it or manufacture its various preparations, and who use them in the diflferent arts, as pluiribers, glaziers, painters in oils or water-colours, colotr-griiiders, type-loun- ders, printers, are the most li.ihle to l)e affected by lead ; but all cImsscs, under certain circum- stances, may also experience injurious effects from t. I'he deleterious nature of this mineral is cer- tainly very great ; but the fatal results are surely not one in three annually, as stated by Sir John Sinclair, 28. i'. M. Merat has furnished some very in- teresting information respecting the frequency of colica pictorum in the various classes of artisans who came in contact with any of the different pieparations of lead. It is derived from the list, kept at the hospital La Charile, in Paris, in the years 1776 and 1811, The total number in both years were 279. Of these 241 were artisans, whose trades exposed them to the poison of lead, viz. 148 painters, 28 plumbers, 16 potters, 15 porcelain makers, 12 lapidaries, 9 colour-grinders, 3 glass-blowers, 2 glaziers, 2 toymen, 2 shoe- m.ikers, 1 printer, 1 lead miner, 1 shot manufac- turer. Of the remainder, 17 belonged to trades exposed to copper. Of the 279 cases, 24 were under twenty years of age, these being chiefly painter boys, not above fifteen ; 113 were between nineteen and thirty ; 66 between twenty-nine and forty ; 38 between thirty-nine and fifty ; 28 between forty-nine and sixty j and 10 older than sixty. Among the 279 cases, 15 died, or 5'4 per cent. (See the article Colic, from Lead.) 29. c. The inensures of prevention from the action of the preparations of lead differ in no respect from those which have been stated in relation to mer- cury (§ 26.). They chiefly consist of strict atten- tion to personal cleanliness. The instructions given by M. Merat are very complete, but are too particular to be followed by workmen. He recommends that the working clothes should be made of sirong compact linen, be changed and washed once or twice a week, and be worn as little as possible out of the workshop ; a light impervious cap ought always to be worn on the head. The artisan should never take his meals in the workshop, or without strict ablution of the hands, mouth, and face ; and he ought to break- fast before leaving his home, 30. Derangements of the digestive organs ought to be watched with care. If colicky symptoms occur, he should leave off" work, and take an aperient. He ought always to guard against constipation. The diet of those exposed to be aflfected by the preparations of lead is of conse- quence. It should be light and digestible ; and poor acid drinks ought to be avoided, particularly cider, as themselves often containing lead. Va- rious articles of diet have been recommended as calculated to impede the hurtful action of lead on the frame. Hoffmann mentions brandy — a somewhat dangerous recommendation. Fat food has been accounted preservative. De Haen states, that the workers in a lead mine in Siyria were much affected by a colic and palsy, but, by being told by a quack doctor to eat a good deal of fat, particularly at breakfast, they were exempt from these diseases for three years (liat. Med. p. i. ch. ix.) Similar facts respecting the good tflPects of fat meat, as a preventative of the effects of lead, are recorded by Sir George Bakf.r (Trails, of Loud. Coll. of Phys. vol, ii. p. 457.) and Mr. Wilson ( Ei//«. Phys. and hit. Essays, I. p. 521.) Those who work at furnaces in which lend IS smelted, fused, or oxidised, should be ])rolected by a strong draught through them. iMr. Ijhaii), of the extensive mines at Leadliills, in- formed Professor Ciiiustison (see his most vula- ahle work on Poisons, difc. p, 506.), that wherever ARTS AND EMPLOYMENTS furnaces of such a construction have been built, the colic has disappeared. 31. C. Copper, although extensively used in the arts, is seldom productive of much disease. l^AfissiER states, that the workmen in copper becoiiie prematurely oU, liaving a meagre and sickly appearance. This is, however, as much owing to their confinement in ill-ventilated places, and iniemperance, as to the metal. Mlrat has ad- duced evidence of their being frequently subject to colica pictorum. They are likewise liable to diseases of the respiratory organ-;, — particularly those engaged in filing the metal ; but this is en- tirely owing to the meciianical irritation occa- sioned by the finer particles when inhaled into the lungs. Asthma is frequent amongst brass-founlers, owing probably to this cause, and paitly to the vaporisation of a poriion of the zinc with which copper is amalgamated. 32. D. Zinc, arsenic, and autimonii are seldom productive of hurtful effects amongst arti^^ans ; owing probably to the first being chiefly employed in the metallic state, in whicli it has no effect, although it is deleterious when oxidised ; and to the circumstance of arsenic and antimony being generally used in small quantities. 33. E. The acrid vapours, which proceed from the mineral acids, often pioduce violent effects when respired ; chiefly asphyxij, and severe in- flammation of the air-passages, but they are easily guarded against, and chiefly by operating in nearly open places. Persons who prepare articles for gdding, by cleaning them in aqua- fortis, are equally liable to respire the vapours of these acids, but may avoid them with even a mo- derate share of caution. The inflammations of the respiratory organs occasioned by them, differ merely in respect of their intensity, from the same diseases proceeding in an acute form from other causes. Chlorine gas, when respired in consider- able quantity, produces inflammation of the air passages. Thc'chief effects of habitual exposure to it are acidities and other complaints of the stomach. I'he trades in which workmen are ex- posed to chlorine do not seem to be unwholesome. Corpulent men are soon reduced by it to their natural size. During the epidemic fever that raged all over Ireland from 1816 to 1819, the people at the chemical manufactory at Belfast were entirely exempt from it, 34. 2d, Molecules of animal matter in a state of decay are frequently productive of disease, both ia persons whose avocations expose them fre- quently to this cause, and in those who approach il only incidentally. Nightmen are chiefly ex- posed to this source of disease, particularly in Paris. I'he gases evolved when emptying the fusses d'aisances of that capital are frequently productive of serious and even fatal consequences. The exact nature of these varies with the vapours evolved, Ammoniacal vapours usually occasion what the French term la mitte : sulpiiuretied hy- drogen, hydro-sulphuretted ammoniacal gases, and azote, produce le plomb, 35. A. The symptoms of la mitle are smarting of the eyes, with the sensation of sharp or pungent odour and uncomfortable feeling about the nuse. To these succeed pain, extending to the forehead, and discharge from the eyes, occasionally with blindness enduring for two or three days. These effects, if not very intense, generally puss off by •AS Causes of Disease. 127 shading the eyes, and exposure to the open air ; if they are more severe, the application of cold epithems to the eyes, and protecting them from the light, are usually elficacious. 36. B. Le plomb is of two kinds ; 1st, that oc- casioned by azjte, and which is simply AsniYxv (which see) from the privation of respirable air, attended with coma or stupor; 2d, that caused by suljihuretted hydrogen and hydro-sulphurettud ammoniacal ga^es, which is the most dangerous and common, and is generally attended with con- vulsions. (See Poisons.) The former is com- monly prevented by a free circulation of air; the latter is avoided by employing the chlorurets of lime or of soda, a solution of which is poured in the privies, and reservoirs or drains, shortly before they are emptied. (See Treatment if Asphyxy and of Poisoning foy deleterious Gases.) 37. C. The animal effluvia proceeding from slaughter-houses, dissecting-rooms, chandlery or adipocire manufactories, and other places wheie animal substances are manufactured or employed in the arts, are seldom so concentrated as to be proJuclive ot disease ; but there can be no rational doubt of their unwholesome influence when con- centrated, or accumulated in a stagnant atmo- sphere. The liability of butchers and cooks to be corpulent has been absurdly enough ascribed by some superficial writers to the absorption of nutritive particles from the air, without attending to the fact of a much larger quantity of animal food being taken by them than by any other class of persons. 38. Dr. WiTHERiNO had noticed (Letter to Dr. Bkddofs, 1793) the comparative exemption of butchers and catgut makers from phthisis M. Patissier has made the same remark; and Dr. Beddoes has added to these employments soap- boilers, and the fishermen and fi>h-wives in the vicinity of Edinburgh. Glue and size boilers are exjiosed to putrid and ammoniacal exhalations from the decomposition of animal refuse. But these workmen are generally fresh-looking anil robust. A similar observation is applicaiile to buckram manufacturers. Tanners are subject to animal vapours; but so combined with the odours of lime and tan as entirely to counteract any injurious effect which the former might produce. They are much exposed to wet and cold ; yet they are ge- nerally healthy, robust, and tolerably exempt Iro n pectoral diseases, particularly consumption. Mr, TuACKrfAH states, that he has carefully inquired at several tan-yards, and could not hear of a single example of this disease. 39. 3cl, Vegetable molecules. — Corn-millers suffer remarkably from breathing an air loaded with the particles of flour. They are chiefly affected by indigestion, asthma, and morning coughs with ex- pectoration, terminating either in consumption or in asthma; and are generally pale, sickly, and short-lived. This is the case only with those who work in the mills. Those amongst them who labour in the open air with the carts are not thus affected ; but, as other persons raising heavy weights, are subject to hernia;. Maltsters aio liable to the same diseases, arising from the same agents, and from the heated and sulphureous air of the kilns. Bakers are exposed to similar causes, but to a much less extent, and suffer accordingly — chiefly from cough, asthma, affections of the stomach, rheumatism, and a peculiar chronic 12f5 ASPHYXY. eruption on the skin. Snuff-makers are exposed to tlie dust of the tobacco ; but tliey are not so much affected by it us may be expected. They chiefly complain of disorders of the head, stomach, and air-tubes: of the former, from the narcotic effect of this vegetable, and of the last from its irritation. The narcotic odour to which hibacco maintfactiirers are liable is not productive of any very appreciable mischief, owing to their having become insen-ible to its influence. 40. 4th, 1 shall here briefly notice tliose trades, the workmen in which experience the very inju- rious effects of inhaling an atmosphere in which various vegetahU, animal, or mineral molecules are Jliiating, — causes wliich, although very dissimilar in themselves, generally act in nearly a similar manner — namely, by irritating the bronchial surface, and superinducing various modifications of disease, according to peculiarities of constitu- tion, temperament, and habits of life. — a. The arti- sans who suffer the most from these causes are dry-grinders anhyxie, Diet, de Med. et Chir. Pratiq. t. iii. p. .'?42. — U'tllinms, in Edin. Med. and Surg. Jimni. xix. p. 524. — Kay, in Ibid. vol. xxix. p. 42. — M. Bour~ grois, in Archives Gener. de Med. t. xx. p. 120.— Meyer, Lonil. Med. Repos. vol. iii. N. S. p. 436 Humane So- cicly's Fifty-seventh Annual Report, 1831, p. 62 P. M. Itoget, in Cyclop, of Pract. Med. vol. i. p. 167 C. H. Marc, Nouv. Recherclies sur les Secours a donner aux Noyds, &c., 8vo. Paris, \%'ih . — Lancet , No. 629. p. 806. R. Dunglison, art. Asphyxia, in Amer. Cycl. of Pract. Med. vol. ii. p. 465. {A most able treatise.) 1. ASPHYXY OF New-born Infants is fre- quently met with, particularly in those who are naturally feeble, or weakened by rupture of tlie chord or laceration of the placenta in consequence of sudden delivery, or of the operation of turning, especially when required by uterine hasmorrhage. It is also occasioned by compression of the chord, and a protracted parturition. 2. Besides the absence of respiration and of muscular motion upon delivery, the surface is pale ; the flesh and limbs are soft and flaccid ; the heat of the body is rapidly diminished, but the circulation slill continues, at least for some time. Several cases which are vievv'ed as asp/ii/xu, more properly belong to syncope or loss of blood, or participate in those states, as well as in privation of the respiratory actions. This privation may depend upon imperfect circulation in the pul- monary aiteries, and through the lungs ; or upon inactivity of the respiratory muscles, and torpor of the nerves which supply them, owing to im- perfect circulation in the biain ; or upon these causes conjointly. Care should be taken to dis- tinguish these cases from apoplexy ; as tiie states of the vascular system, and of circulation in the brain, and consequently the treatment which is required in each, are very different. 3. The treatment of these cases consists of de- ferring the ligature of the chord for some time ; of taking care that no blood is lost from dividing it ; of enveloping the infant in warm flannel ; of holding it near a warm fire, or plunging it in a warm bath, rendered exciting by means of salt or mustard ; of removing all obstruction to the passage of air into the lungs from about the throat and mouth ; warm frictions of the surface of the chest, with gentle succussalion with the palm of the hand on the shoulders ; tickling or irritating the nostrils and arm-pits with a feather; dropping a little diluted aromatic, or ammoniated spirit upon the lips ; and most particularly inflation of the lungs by the breath of the medical attendant, eitlier blown directly into the mouth, the nostrils being closed, and the trachea gently pressed back- wards ; or through a curved tube introduced into the larynx, as recommended by Ciiaussier, and employed by him at the " Maison d'' Accouchemens" in Paris. This latter method is certainly pre- ferable. Insufflation is to be managed in the same manner, in other respects, as described in the foregoing article. But 1 think that the breath of the attendant is better suited to infants, than cold air thrown into the lungs by a bellows. 4. M. Desoumeaux complains of his want of success from inflation of the lungs, even when carefully and assiduously employed, and places 1 more dependence upon means calculated to ex- \ cite the respiratory muscles to contract. For this purpose he recommends a species of spirit douche, and directs the practitioner to take a mouthful of brandy, and dash it forcibly against the anterior parieles of the chest. He states that this is sel- ASTHMA - dom requirerl oftener than twice or thrice. INIe- chanical irritation of the nostrils, or exciting powders applied to the pituitary membrane, may be cautiously tried ; a stimulating clyster may also be thrown up. Galvanism or electricity may likewise be resorted to when within our reach. We should not relinquish our endeavours at re- suscitation under two or three hours, or even longer ; and, if we ultimately succeed, the state of the infant should be carefully watched for two or three days. Bibliography.— Burns, Principles of Midwifery, &c. 8th edit. p. 5y2._Ga»(//<«, Traite Coraplet. d'Accouche- nieiis, &c.. t iii. p. I3ri._ Ucsormcaux, art. Nouvcaux -nes. Diet, de Medecine, t. iii. p \h\',. — JVilson, in Glasgow Med. Journ. vol. il. p. 237. — See Dublin Med. Joiirii. for July, 183fi, passim. ASTHMA. Deriv. and Synon. "^AaO/xa, an- helatio : from &cti, I breathe ; aad/xdi^v, I breathe with ditficulty. Suspirium, Celsus, Seneca. Dyspiuva Spastica, Auct. X;\t. Mitspathica Spastica, Ploucquet. Asthma Chronicum, J. P. Frank. Asthma Coiivid- sivum, Baglivi, Alberti, Hoffmann, Sauvages. Asthma Spiisticum, Juncker. Pnensis Asthma, Young. Asma, Bolsaggine, Ital. Fcnisse, Asthme, Fr, Die Engbrlistigheit, das Keu- chen, Ger. Classif. 54. G. Asthma ; 3. Order, Spas- mi ; 2. Class, Neuroses (CiiUen), 4. G. Asthma ; 2. Order; 2. Class (Good). 37. G. Asthme Convulsif; 4. Order; 4. Class {Piiiel). II. Class, III. Okder (Author, see Preface). 1. Defin. Great Difficulty of breathing, re- curring in paroxisms, accompanied with a wheezing sound, sense oj constriction in the thorax, anxiety, and a difficult cough, terminating in, mucous ex- pectoration. 2. There are few diseases, the nature of 'wliich has been a subject of greater doubt and difference of opinion than asthma. Until the writings of Fi.oYER, Willis, Hoffmann, Alberti, and JuNCKER, directed particular attention to its pa- thology, it was geneially confounded with dy.sp- noea, being usually denominated inteiniiltent or remittent dyspnoea. By these writers, and more recently by Sauvages, Cullen, Pinel, and Georget, asthma was considered as essentially nervous in its nature; and the lesions found upon the dissection of fatal cases viewed as its conse- quences, and not as its causes. More recently, and even at the present day, among many, it has been considered as a symptom of organic change of either the heart, large blood vessels, or of the lungs, air-tubes, &c. But tliis doctrine, although generally accurate in respect of Dyspncea, is quite erroneous as applied to asthma. 3. Physiology or Asthma. — The dependence of dyspnoea, not only upon organic lesions of the organs seated within the cliest, but upon the form of the thorax, upon di.seases of adjoining viscera, and upon the state of the air-passages, is sufK- ciently obvious. The difficulty of breathing pro- ceeding from these sources may be either con- tinued or remittent; but it never is, whilst the causes on which it depends aie in existence, characterised by intervals of peifect ease. True asthma, however, pre>ent!3 iniervals of healthy respiration ; and although repeated returns of the attack will generally induce some change in the organisation of either the lungs or the principal Pathology of. 135 organs of circulation, yet ihi.s is not uniformly the case; and moreover, an attentive examination of the thoracic viscera, in recent attacks, fails of detecting in them any appreciable change, par- ticularly during the intervals between the parox- ysms. The disease has even proved rapidly fatal during the attack, and yet no alteration adequate to account lor the symptoms could be detected on dissection. Instances of this description have been adduced by Wichmann (Hujeland's .Journ. b. i. p. 18.), Parry, Georget, Andral, Laen- NEc, and Guersent, and justify the opinions cf those who have referred the disease chiefly to the nervous system. In some cases, alter repeated returns of the attack, and when they have in- duced organic change, the intervals are less dis- tinctly marked, consist of remissions merely, and the disease may, at last, pass into confirmed dyspnoea. 4. A. The structure ofthe air-passages and bron- chi evidently shows that these parts are suscep- tible of preternatural or spasmodic constriction. During 1821 and 1822, when engaged in some • researches into the pathology of diseases affecting the trachea and bronchi, 1 was enabled distinctly to trace muscular fibres throughout those parts, both in man and in the lower animals. 'The dis- position of those fibres, in many of the lower animals, and the mode of their connection with the cartilaginous rings, are peculiar, and beau- tifully adapted to guard against the contingencies to which they are liable from varying positions and habits of life. Upon those, however, I can- not here enter. About the same time that my attention was directed to this subject (Lond, Bled. Repository, vol. xxii. p. 418.), the researches of Reisseissen of Berlin, and of Laennec and Cru- VEiLHiER of Paris, appeared ; and the results, in respect of the structure of the bronchi and larger ramifications of the trachea, upon the whole, agree with what I had observed. It had been denied that the membranous, or any. other part of the air-passages contain muscular fibres. But this was asserted chiefly by those who cannot believe that a part is muscular, unless the fibres are the same in appearance as those which enter into tlie composition of the muscles of voluntary motion. Other anatomists, who take a more comprehen- sive view ofthe conformation and functions of the muscular system, consider, with greater justice, that the muscles which are acted upon by the will, form an older by themselves; and that there is another and a very imporlant order of muscular parts, which are not directly influenced by vo- lition, but which Contract from stimuli acting on them, either immediately or mediately, and which present certain peculiarities in respect of the ap- pearances of their fibres, of the mode of their distribution, and of the manner of their connec- tion with internal tissues and organs. Now, the fibres which are discovered in the trachea, and traced to the smaller ramifications ofthe bronchi, are in every respect similar to other involuntary muscular fibres, in their organisation ; in their connection with a mucous surface, forming, in many respects, a tunic concentrically with the mucous coat ; in being disposed in circular fibres, surrounding hollow tubes; and in being supplied entirely by ganglial or involuntary nerves. The disposition of the fibres, therefore, which are de- tected in the air-passages, being altogether similar K 4 i36 ASTHMA — Pathology of, to tliat which obtiiiiis in other cunals, the mus- cular structure of which is not disputed, as in the alimentary tube and urinary hladder ; the organ- isation of the fibres being also similar; their con- nection to a mucous surface, and the circum- stance of their being supplied with the same order of nerves, being at the same time considered ; are we therefore to be surprised that agents affecting either the mucous surfaces thus related to them, or the nerves supplying them, should be followed with analogous effects to those which we observe after the action of agents directed to the mucous surface or nerves of the alimentary canal ? 5. B. The lungs possess a vital power of expansion. — The structure of the air-passages, then, would lead us, independently of the results of observ- ation, to infer that the circular fibres are liable to experience, with all other involuntary muscular fibres, a spasmodic constriction ; and it evinces, particularly in the conformation of the cartila- ginous rings with which the trachea and larger ramifications of the bronchi are provided, a marked provision against an inordinate continu- ance or degree of this constriction ; the rings, by their permanent elasticity, acting as antagonists to the circular fibres, preveniing extreme con- striction, and at last overcoming long-continued spasm, particularly in those larger branches, the inordinate constriction of which might have the effect of excluding the air from a very large por- tion of the lungs. In the larger ramifications of the bronchi, the muscular fibres connecting the extremities of the cartilaginous rings are thus antagoni>ed by these rings ; but, in the smaller ramifications, where the rings cease to be de- tected even in the imperfect forms in which they there exist, and where the fibres are perfectly circular, the only provision which can prevent an inordinate constriction of those fibres, is in the structure of the lungs themselves, which must necessarily undergo a change in bulk, and be- come more condensed by this constriction, in those parts, at least, to which the spasm extends; unless we believe that the lungs, like various other organs, are endowed with an expansive power, — a power which physiologists and pathologists have too much overlooked in their exposition of the healthy and morbid actions of the animal economy.* 6. 'J he mechanism of the expansive power is so little understood, and generally so insufficient for ilie explanation of this phenomenon, that we must refer chiefly to the vital actions of the part, which mu-t necessarily depend on the eneigies of the body generally. The expansile action of the penis, nipple, heart, uterus, &c. cannot be ex- plained by their organisation only : it is mani- fested to us only during life, and the perfection as well as imperfection of this action are always ac- cordant with the degree of vital energy with which these organs are endowed. 7. 1 have long since had occasion to remark that the motions and functions of the lungs (Pliy- * Tliat the lungs, however, really posf ess this property, may be inferrfd from the permanent elasticity of their structure, which continues for some time after death ; and which is still more marked during life, as shown by •xposing the luiif;s of a living animal. This state may be with propri.-ty called the vital expansibility of the linigs, inasmuch as the degree of this slate is chiefly dependent upon the vital c-nergy of the system, and p:trtly on the peculiar organisation of the lungs themselves. siological Notes, (5fc. to M. RicHEnAND's Physio- logy, 2d ed. p. 628.) have been too generally and exclusively referred to the mechanism of the re- spiratory organs, and to chemical changes pro- duced in the lungs, to the neglect of a much higher influence, always controlling, modifying, or altogether changing, the subordinate powers to which their functions have been thus referred. That the vital energies of the frame are most powerfully exerted in the lungs, thiough the me- dium, especially of the organic nerves with which they are provided, must be evident to all who will contemplate the nature and extent of the changes constantly taking place in these organs upon the blood circulating through them ; and the relation which subsists between their functions and the vital energies of the system generally. Now, it does appear to me that there exists a vital expansion of the lungs independent of that which they experience from atmospheric pres- sure, and from following the dilated parietes of the thorax during inspiration. In experiments upon living animals, where the walls of the chest have been opened, the lungs are observed to swell and contract alternately. This fact, which was first insisted upon by M. Roux (Melanges de Chiriirg. p. 87.), has since been duly appre- ciated by Prus, Laennec, and a few others. Even in cases where the portion of lung has pro- truded itself after a wound of the chest, — a cir- cumstance which could only occur from active expansion of the lung itself, — this portion has been, although thus unnaturally placed and sub- jected to the pressure of the atmosphere, observed to dilate during inspiration. The not infrequent occurrence of ossification of the cartilages of the ribs in old persons, and consequent perfect im- mobility of the ribs, even without any evident dyspnoea, furnishes another proof of the inherent expansibility of the lungs: for without having recourse to this vital property, we cannot explain the performance of the actions of inspiration and expiration by the diaphragm alone. 8. This vital property, thereiore, with which the lungs, in common with some other organs, seem to be endowed, together with the disposi- tion and elasticity of the cartilaginous rings of the bronchi, furnishes an antagonising force to the unnatural constriction of the tubes from spasm of their circular fibres ; and, while it serves to explain the natural functions of the organ, with their mo- difications from the various influences to which this property is subjected, is one of the sources to which we are to impute some of the diseases, and more especially the one under consideration, to which the lungs are liable. 9. Having thus shown, from the structure of the air-pa,«sages, that they, in common with all other hollow tubes of the body, admit of spasnjo- dic constriction, and tliut they also present a pro- vision against the undue extent or continuance of this state, I should further reniurk, that a close observation of the phenoniena of disordertd respiration is sufficient to convince us that they fretiuently experience this state owing to the operation of certain causes acting either directly on the mucous surface of the tubes, and im- pressing the nerves terminating in it, or originat- ing in and irritating the nerves themselves, either at their origins or in their ramifications and con- nections. ASTHMA 10. I. Symptoms and Hisronv of Asthma. — The premonitivij symptonis of this disease are languor, sickness, flatulency, and other dyspeptic disorders ; heaviness over the eyes, and headacli j uneasiness and anxiety about tl)e prtecordia, with a sense of fulness and straightness in this rejjion and in the epiga-triuni. In some cases pain is complained of in tiie neck, wilh uncommon drow- siness and stupor. It is also olten preceded by costiveness and inefficient calls to stool. 11. A. The invasion of the attack of spasmcdic asthma is generally soon after midnight, or about one or two in the morning, and during the first sleep. The patient wakes suddenly from a sense of suffocation. He feels a most distressing tight- ness at his chest, with great anxiety, difficulty of breathing, and impediment to the free admission of air into the lungs. He assumes wilh eager- ness the erect posture, and cannot bear the least incumbrance about the ciiest. The breathing is wheezing, interrupted, and laborious. The shoulders are ra'serl, the elbows directed back- wards, and every effort .made to enlarge the thorax. Owing to the inteirupted circulation through the lungs and heart, the countenance, which was at first pale and anxious, becomes, pariicularly in plethoric habits, red or bloated, and covered with perspiration. The eyes are prominent, and the conjunctiva injected. A con- siderable quantity of pale urine is usually passed at the commencement, or previous to the acces- sion, of the paroxysm; and the lower extremities are usually cold. The pulse is generally acceler- ated, weak, irregular, and often intermittent. Dur- ing the fit, the patient has commonly an instinc- tive desire for cool fresh air, which always revives him. A small or close room is offensive, and all warm substances given internally increase the flatulency of the stomach and bowels, and aggra- vate the symptoms. When the fit has continued from half an hour to one, two, three, or even four hours, it leaves the patient ; and his respiration, pulse, and feelings assume their natural state. 12. I'his is the common course of a first and moderate attack of the disorder. Somelimes the patient has but one such fit ; but more generally a slight constriction of the chest is fell through all the succeeding day, and the paroxysm rtlurns at the usual period of the night; and this con- tinues for three, four, or even seven days; when the patient is at last altogether relieved from the attack. The disease may be suspended for a month, or several months ; but it i» liable to re- cur from changes of air, errors of diet, and from the operation of the other causes productive of it. 13. la some cases the attack is more severe from the commencement, and continues, with slight remissions, for several days, accompanied with a harsh suffocative cough, great distension of the abdomen from flatus, and more or less of the symptoms which characterise the complaint in the severer states resulting from repeated attacks. 14. When asthma once seizes on the system, it seldom fails of recurring, though the intervals between the paroxysms are of very uncertain dur- ation. In many cases it recurs periodically every ten days or a fortnight. Sometimes the attack returns at the full and change of the moon, or at one of those periods only. It has been observed to recur in females just after the menstrual dis- charge, or to precede this evacuation, Tersuns Symptoms of. 137 who have become subject to the disease seldom escape an attack in the spring and autumn. 15. After repeated seizures, the disease oft( n assumes the mont violent and distressing features ; the difficulty of breathing in the fit amounts to the utmost degree, and is attended with the greatest tightness over the whole chest, the patient feeling as if he were bound with cords. His anxiety at this period is inexpressible, and he la- bours in respiration as if every moment would be his last. Severe vomiting also frequently occurs. The matter discharged is slimy and frothy, or of a greenish yellow colour. He is subject to palpi- tations and faintness ; and cool fresh air becomes absolutely necessary. About this period a loo.-e siool sometiines takes place. The eyes are pro- minent, the face sometimes pale, sometimes high- coloured, bloated, or livid : the nose and ears are cold : the face, neck, and chest, covered with per- spiration. The pulse is generally extremely weak, irregular, and even intermittmg ; there is often much difficulty of swallowing. The patient can scarcely speak, cough, or expectorate, and ilio stomacli and bowels are much distended with flatus. As the paroxysm abates, the cough be- comes freer, and is attended with the expector- ation of a little viscid mucus ; and, in proporiion as the cough and expectoration increase, the dis- tressing symptoms abate ; this evacuation, which had been retained by the spasm of the air-vessels, indicating a solution of the spasm and a freer access of air to the cells of the lungs. An easy and free expectoration, particularly if it be ac- companied with softness and moisture of the skin, and a sediment in the urine, is a certain indication of the subsidence of the attack. Sometimes when the paroxysm is unusually long, the patient experiences only a single occurrence of it during the attack. 16. B. The Humoral form of asthma is gene- rally gradual in its accession, and attended by extreme oppression, a suffocative cough, and u copious secretion and expectoration of mucus from the commencement of the seizure (§ II.). It is sometimes the consequence of repeated at- tacks of the preceding variety ; and is generally more severe and of longer duration than it, owing to the accumulation of viscid mucus in theaii- vessels conspiring wilh the spasm it occasions to aggravate the symptoms. There are also less perfect intervals of ease in this form of the malady, ihan in the spasmodic. Alter the subsidence of the patient's sufferings during the first night of the attack, and while the expectoration is easy and copious, the lungs slill continue irritable through the day, and the respiratory function embarrassed from the slightest causes. At the approach of night, the fit recommences with the usual symp- toms, and the night is • passed neaily as the former. On the thiid day the remission is n)ore complete, there is some additional expectoration, and bodily motion is performed with less distress, but still with great inconvenience. After the paroxysm has been renewed in this manner for three or four nights, or for a longer period, some- times for several days or even weeks, — for the duration of an attack varies much, — the expec- toration and cough are more easy and fiee, the daily remissions become more perfect, and the strength of pulse and vigour of action increase. 17. When the chest is examined by the ear or 133 ASTHMA — Symptoms of. stethoscope, the sound of respiration is weaker during the fits than in tlie intervals, but it is sel- . The most common conse(|uences of the disease to which I may now advert, are chronic inflammation and dilatation of the bionchi ; the different forms of emphysema and oedema of the lungs; haemoptysis; tubercular formations, with which asthma may also be associated from its commencement; enlargement, and dilatation, &c. of the cavities of the heart ; effusions of fluid in the pleura or pericardium ; and wasting of the heart, or polypous, concretions, within iis cavities. As the reader will find all those lesions treated of under their distinctive heads, I shall here only remark respecting them, that, when they supervene to asthma, many of the distinctive characters of this disorder entirely disappear in those of the superinduced disease, and the lesions of the respiratory functions assume the distinctive features of chronic, continued, or remittent dysp- noea. Severe attacks of asthma may also ter- minate in congestions or effusions within the head, giving rise either to epilepsy, coma, or apo- plexy. 23. It was already remarked, that auscultation and percussion furnished merely negative inform- ation in the different forms of asthma. But this information is still important, inasmuch as it inti- mates the non-existence of any of the foregoing organic changes; and when they do exist, those means of diagnosis enable us not only to recog- nise them, but also to ascertain witli precision their nature, progress, and extent, and thus to form an accurate diagnosis and prognosis in re- spect both of the primary disease and of the con- secutive organic changes. 24. c. When the disease ends in death, this event is brought about generally by superin- ducing some one of those changes already re- ferred to as terminations of the disease, or of those lesions, with which it is frequently asso- ciated {§ 22.). Death may, however, occur, but much more rarely, from the severity of the at- tack ; the requisite changes not being effected on the blood by respiration, owing to the obstructed state of the air-vessels, either from spasm or the accumulation of viscid mucus, or from both, whereby the nervous centres are' supplied with blood unsuitable to their functions, and the lieait ceases to contract with suflicient energy to pre- serve the circulation in a requisite state of acti- vity through the lungs and brain. 25. D. Tlie uppeuraitces (ijter death may he m- ferred from what has already been stated. These appearances are rather the consequences of the tlisease, than the disease itself; lor it is seldom that we have an opportunity of examining the body in recent and uncomplicated cases of asthma. ^^ here, however, this has been done, the lesions, even when any have been detected, have been insufficient to account for the disease. WiLi-is records a case of piotracted asthma, in which no morbid appearani e could be detected , and similar cases have occurred to Laennec, An- uitAi,, Ciiuvi'ii.iiiFR, BooiLLAun, Jolly, and others. Friinus, after extensive experience, states that he has been unable to detect any lesions which can be attributed to uncomplicated asthma. 'J he changes which have been noticed, therefoic, by authors, are to be viewed chiefly as acciilental (iccui tenets, or associated nialad.cs; and, per- haps, moie fiequently as the remote results of Hpealed or protracted attacks. The appearances usually observed in fatal cases are the same -on have been dcsciibed (§ 22.). 25. II. VAHitiiLS OF Asthma, and of tiieih rAinoLOGY, — Sauvagis has euumeiuted no Itts ASTHMA— Varieties of. 139 than eighteen forms of this disease, many of them presenting no modification of the phenomena constituting the disease, but merely pecuharities as to cau>-e, particularly as respects the .occa- sional causes. Sevei'al of his varieties, also, strictly belong to the more generally symptomatic complaint to which the term Dyspncea is usually applied. The varieties of idiopathic asthma, ac- cording -to CuLLEN, are the Spontaneous, Ex- ANTHEMATic, and Plethoric. Dr. Breic, who has given a comprehensive account of the disease, has divided it into forms which have reference chiefly to the doctrine which he has espoused re- specting its pathology. He assigns to it four species: — 1st, Asthma produced by the irrita- tion of effused serum in the lungs; being its most common form : 2d, That occasioned by the irrita- tion of aerial acrimony in the lungs ; 3d, That dependent on irritation in the stomach, or some of the abdominal viscera: and, 4lli, That depend- ent upon habit. Dr. Young has adopted a similar arrangement. 26. JM. Laennec has given a simpler view of the disease, and assigns it two forms, viz. asthma attended with puerile respiration, in which the vital expansibility of the lungs is increased, from a temporary augmentation of the want of the system for respiration, occasioned by some un- known modification of the nervous influence ; and spasmodic asthma, from a spasmodic con-triction of the air-tubes. Dr. Good has divided the dis- ease into the dnj and humid; but he has en- cumbered these two species with nearly as many varieties as have been assigned by Sauvages. The dry or nervous asthma he subdivides into the simple, metastatic, phlegmatic, vaporose, and organic, — a refinement which is neither founded in nature, nor can be available in practice ; for a simple nervous asthma may be induced by in- jurious vapours, or by repelled eruptions, and hence we have the first variety produced by either his second or fourth ; and the second, or the phlegmatic nervous asthma, may proceed from the same vaiieties. His fifth variety is cer- tainly not admissible under asthma, unless as a consequence of the disease, but falls more pro- perly under dyspnoea, either in its contmued or remittent forms. The Humid or ctim/HO/i asthma he subdivides into the simple, plethoric, and atonic, — a division much more accurate than the foregoing, but still objectionable, inasmuch as it is impossible to draw any line of demarcation between them, and as the three varieties insensibly pass into one another. 27. By the great majority of authors who have written on the disease, it has been viewed simply in respect of its Idiopathic and Symptomatic forms ; both, however, presenting modifications resulting from peculiarity of causes, and the cir- cumstances of the patient, butmsufficiently marked to constitute distinct varieties. In the following observations I shall observe the same distinction, and divide the Idiopathic form of the disease into, 1st, The nervous asthma ; 2d!y, The primarily spasmodic asthma j and, 3dly, The pituitous or humid asthma. 28. 1st, Nervous Asthma. The asthma with puerile respiration, Laennec, — Char. Anhe- Uitionfrom a feeling of want of a more complete respiration than the patient enjoys, the pulmonary eipansion distinctly taking place with promptitude, completeness, and uniformity, so as to furnish u general puerile sound on auscultation; usually accompanied with a slight cough, and ivith a free mucous expectoration. 29. This form of the disease was first accurately described by Laennec, who pointed out the dif- ference between it and the forms depending on spasm of the air-tubes. In this variety no spasm seems to exist in the smaller air-vessels and cells ; for the whole tissue of the lungs is dilated to its full capacity, and with unusual promptitude and completeness, so that the puerile respiration is heard in every part of the chest ; whereas in the other varieties the respiration is generally some- what more indistinct than in health. M. Laen- nec contends, and apparently with justice, that the wants of the system, in respect of respiration, may be exactly measured by the intensity of the respiratory sound; and that the intensity varies much, according to many circumstances, and par- ticularly according to the age of the individual, it being much greater in childhood than in adult life. There is no morbid affection, he observes, which can be more satisfactorily referred to simple disorder of the nervous influence, than this dyspnoea accompanied with puerile respiration. In cases of this kind, the respiratory sound has resumed all the intensity which it possessed in early life. The pulmonary expansion evidently takes place completely and rapidly in all the air- cells, and yet the patient feels the want of a more extensive respiration than he enjoys ; and the lungs, although dilated to their utmost, have not, nevertheless, capacity enough to satisfy the wants of the system. This affection is common in per- sons affected with chronic mucous catarrhs, attended by a copious and easy expectoration ; but even in them, during the severest attacks, the completeness with which respiration is performed is quite astonishing. Nevertheless the patient feels oppressed, and requires a more extensive respiration than his organisation allows; the wants of the sys- tem in respect of this function being increased be- yond the standard of health. 30. In this form of the disease it is not in the small air-tubes that we are to lock for its proxi- mate cause, but in the trachea and large bronchial trunks, and particularly in the nervous influence itself; and this will equally hold good even if we adopt the chemical theory of respiration, and refer the affection to an extraordinary want of oxygen in the blood, arising from impeded func- tion of the respiratory mucous surface, owing to the mucous secretion covering it. M. Laennec believes, as this species occurs only in persons affected with chronic mucous catarrh, that it can never amount to asthma, without the catarrhal complication. Adults and old persons, he re- marks, who have puerile respiration without catarrh, are not, properly speaking, asthmatic; but they aie short-breathed, and dyspnoea is in- duced by the slightest exertion, though when silting still they frequently experience no oppres- sion whatever. 31. This variety may be considered as depend- ing upon a temporary augmentation of the want of the system for respiration, occasioned most probably by some unknown modification of the nervous influence ; and apparently consisting in an expansile action of the lungs increased much beyond the healthy standard. But here a ques- 140 ASTHMA lion suggests itself, viz. can this augmented action of tlie lungs be owing solely to the state of this organ, or is it associated with, or partly depending upon, increased activity of the respira- tory muscles, particularly the diaphragm? M. Laennec states that it cannot be produced at will by a full inspiration ; and, therefore, infers that this state of the lungs is a primary condition of them, and not depending on increased inspira- tory efforts. 32. From this consideration I am led to infer that, although the vital expansile action of the lungs may be increased in this variety of asthma, it is accomplished with, and much assisted by, augmented activity of the diaphragm, which per- forms its office more promptly and completely in this vaiiety of asthma than in any other; that instead of the disease being characterised by spasm of the smaller ramifications of the bronchi and air-cells, as in the second variety of asthma, the air penetrates more fully into them than usual ; and that, if any spasm exists, it is limited to the trachea and large bronchial tubes ; the exalted state of expansion of the lungs, and of function of the diaphragm, being an effort to counteract this morbid condition of the large tubes, and to supply the wants of the system by a more forcible inspiration ; the increased rapidity with which the air is thereby made to pass through the strictured canals making more than amends for the diminished calibre of the passage. This form of the disease is frequently symptoinatic of nervous affections, particularly of hysteria, when the globus hystericus affects the state of the trachea, and of various diseases, in which the blood is imperfectly changed in its circulation through the lungs. But when thus symptomatic, it is often slight and evanescent. 33. 2d, Spasmodic Asthma. Syn. Periodic Asthma. Convulsive Asthma, WiUis, Baglivi, Boerhaave. Asthma Siccum, Musgrave. Occult dry Asthma, Etmulter. Spasmodic Asthma, La- ennec. Dry Asthma, Good. — Char. Parox- ysms sudden, violent, and of short duration, at- tended ivith hard si)asm('dic constriction in the chest; slight, dry, and difficult cough, and with a scanty expectoraiion, occurring only towards their close. 34. I stated that the vital expansive action of the lungs was increased in the foregoing variety. In this the ramifications of the air-tubes, and peihaps the air-cells themselves, seem to be unna- turally constricted. 'I'lie respiration, when ex- amined by the stethoscope, or by the ear merely, is heard either very imperfectly even on the most forcible respiration, or to a small extent only, or its sound may be but little impaired. The chest, during the paroxysm, sounds ill on percussion. These phenomena indicate that there is an im- perfect entrance of the air into the air-cells. ]\I. Laennec states, that if the patient after holding his breath nearly as long as he can, breathes (|uietly, the spasm will often be overcome as it were by surprise, and the entry of the air into the cells will be heard in a clear or even puerile i-ound. This, and various other circumstances, independently of the jiroof furnii-lied by the struc- ture of the air-tuiies, indicate lliat the obi"tiuclicn to the entrance ot air into the cells is owing to sjiasm of the muscular fibres. 35. Dr. Williams believes that spasmodic — Spasmodic. asthma may be partial, affecting one lung only« or one more than the other ; but this is very sel- dom the case, unless when it is occasioned by, or complicated with, dry catarrh, which is some- times partial ; or when the spasmodic constriction is excited by a collection of a pituitous fluid in some of the bronchi, — a complication of not in- frequent occurrence, but falling more strictly under the next form of the disease. Although the paroxysms of the primarily spasmodic asthma are sudden, and generally of short duration, yet the disease is often of long continuance, and may, to a certain extent, become habitual, as shown by Dr. Bree and others. 36. During the spasm, the lungs seem, from an attentive examination of the thorax, somewhat drawn together, owing to the constriction of the air-tubes; and the parietes of the chest, being necessarily pressed inwards at the same time, generally yield a less clear sound on percussion. The scrobiculis cordis is also drawn inwards and upwards, indicating the manner in which the diaphragm is affected during the paroxysm. This phenomenon, which was first pointed out by Scheidmantel (Fr'dnkische Betriige, No. 5.), arises either from the diaphragm being prevented from contracting to its full extent by the spastic constriction of the air-vessels, or from a temporary paralysis of this muscle. That the latter state should take place, and be followed in a short space of lime by a perfect restoration of action, and that repealed seizures of this description should be always succeeded by a similarly rapid return to the healthy state, cannot be admitted by any person who takes an intimate and com- prehensive view of the operation of the animal economy in health and di=eajss. ; Tinct. Castorei 3 iij- ; Tinct. Opii Co. (F. 7i9.) 3ss.; Syr. Tolutani.5 j. Fiat. Mist., cuj us sumat cochleare uniim am|ilum subiiide. N.I. 40. R Balsaiiii Tolutaiii 3jss ij.; Mucilag. Aca- cias 5 j.; teie beiiS et artde, mlscendo, i'inct. Benzoiiu Comp., Tinct. Opii Camplioratce Prist, aa 3iij.; Olei Anisi 111 S.X.; Aquae Piilegii et Aq. Anetlii aa 3 i'j-; Sy- rupi Simp. 5ij. M. Capiat locii. ainpla duo, quater in die 90. I). Emetics are amongst the most promptly beneficial remedies that can be resorted to during the paroxysm, with llie intention of removing both phlegm and spasm ; and they have been justly recognised as such by C/elius Auuelianus, HoRisTus, Mayerne, Floyer, Aken'side, Bang, Kerbs, Hufeland, Weuel, Sioll, Bree, LOEFFLER, and SCDMIDTMANN. IfltCUCUaU is, upon the whole, the best meilicine that can be employed to produce this effect. The philoso- phical Akenside recommended a scruple of it to be given at the commencement of the paroxysm, and five grains every morning during the intervals, for some time, so as to occasion nausea. When the paroxysm is excited by an overloaded or deranged state of the stomach, emetics are particularly in- dicated. It is in such i;a.ses that Sciimidtmann, one of the most practical and experiencefus. No. 4K. R Potassa! Nilritis pr. x. — xvj. ; Vini Ipecacu- anha;, I inct. Uyobcyaini, aa 3j.; Liquor. Ainmc/n. Ace- tat.3iij.; Mist. (J iinphoroe 3 vj. ; Syr. Tolutan. 3 j. M. Fiat Ilaustus statim ca])icndus. 93. Besides the internal use of refrigerants, LoEFFLEu recommends cold e])iihems to be placed on the chest, in the spasmodic form of the disca.se|: and several Continental writers advise clysters of Treatment. cold water to be administered when asthma seems to be connected with hysteria. In such cases, clysteis of assafoelida or of infusion of valerian are preferable. Refrigerants act both by diminishing inordinate secretion, and by allaying spasm ; and, when the disease is connected with active conges- tion, or excitement, are, with depletion, the safest measures that can be employed to remove, or to prevent the formation of phlegm. 94. D. To transfer irritation to other parts, or to recall the disease to its original seat, when it has arisen from the metastasis of gout, i heumatism, or the suppression of discharges, is often an important indication. The usual means of revul- sion and deriration, or counter-irritation, particu- larly those which produce this effect with the greatest celerity, as sinapisms, stiniuktting pedi- Inviu, and t\ie vapour balii, are the chief revulsants that are admissible under such circumstances and at this period. They may be accompanied with diaphoretics, aperients, diuretics, or even em- menasogues, in particular cases. They have also occasionally been found succes.sful in preventing the accession of the fit; particularly if employed when the premonitory signs first appear; and if internal derivatives, especially a purgative com- bined with antispasmoflics and carminatives, have preceded then), and if they have been followed by gentle diaphoretics. Warm turpentine epithems, placed on the chest, are often remarkalily bene- ficial. The turpentine liniments {¥. 300. 311.) may also be employed in a similar manner. 95. E. To remove Jialulence, by means of gentle aperients combined with carminatives, is often necessary during the course of the paroxysm. I have observed much benefit derived fiom the exhibition of a purgative, combined with anti- spasmodics and carminatives, shortly before the expected accession of the attack, particularly when the premonitory signs begin to appear, and the digestive organs evince disorder — such dis- oriJer often acting as the efficient cause of the .seizure. (See F. 28. 181. 266. 379.) The com- bination of diuretics, alro, with the medicines pre- sciibed during the paroxysms, or of carminatives, in order to relieve the distressing flatulence with which they are very generally accompanied or preceded, will be often found of service. 96. F. Besides the means noticed above, there are several which have been recommended in the fit — some of them most deservedly, others in a very indiscriminaling, and hence not a very bene- ficial manner. Of the former of these, warm coffee is tlie most important. This dietetic remedy was used by Floyer in this disease, and more recently by TiiiLENitJS, Peucival, and Biiik. Itgenerally iiflbrds much relief when made sufficiently strong ; and it seems to resen)ble the stimulating anti- spasmodics, particularly camphor, in its action. I have also observed the paroxysm checked by strong green tea. 97. JMy limits oblige me merely to enumerate the other medicines which may be revolted to in the paroxysms of asihma. The chief of these are, dry cupping between the shoulders, a weak solution of phosphorus in aither, the trisnitrate of bismuth and oxide of tine, nux vomica, Ike, by several Conti- nental writers; galvanism, as recommended by Dr. W. I'liii.ii' ; electricity, by ]\I. Sigaud Lafond; the chenopodium ambrosioides, byJIuFEi.ANi); the infusion or spirits of juniper, by Ukkker ; ASTHMA — guaiacum, by Aaskow, particularly when the attack occurs iu the gouty or rheumatic diathesis ; cajeput oil, in the spasmodic form of the disease, by Wickmann; the veratrum album, by Mijller ; the hydrochlorate of ammonia, by JMAmius; and the external application of garlic, by Portal. 98. 2d. Treatment during the interval. — Our chief object during the interval is to prevent liie accession of the attack, by avoiding die remote causes, and removing (he morbid slate of tiie digestire and respiratory organs wliich dispose to it, and whatever disorder of function or of struc- ture vviili which the disease may have become associated. We shouhl, therefore, endeavour to form a correct opinion respecting the sidte of the bronchial mucous surface, the morbid associations of the atfection, and the consecutive lesions which may have already supervened to it. The state ot the dige-tive functions, of the alvine secretions and excretions, should receive the utmost atten- tion ; and the means which may be most appro- priately used for their promction, in particular cases, ought to be assiduously employed. 99. A. Evacuations, S;c. — Under this head I win briefly consider blood-letting, emetics, pur- gatives, blisters, issues, and diaphoretics. — a . Bleed- ing is seldom of service in the uncompliL-ated state of the disease. But when it is accompanied with vascular plethora, or pulmonary congestion ; or when the attack seems to liave been produced by the suppression of an accu-tonied discharge, whe'her sanguineous or of any other description ; a moderate tjlood letting or cupping between the shoulders, will be of advantage. 100. b. Emetics during the intervals are only required when the disease is characterised by con- gestion of the mucous surlace of the lungs, obstruc- tion of the bronchi by a viscid secretion, or torpid and loaded state of the liver and biliary apparatus. AVhen prescriberl shortly before the expected fit, they often succeed in preventing its acce-sion. 101. c. Purgatives are often necessary ; but they may also be detrimental. Those substances whicli irritate the digestive mucous surface, with- out producing a full feculent evacuation, ate always prejudicial. Purgatives also are hurtful when they are employed so frequently as to lower the vital enerj^ies, and cany off a portion of the chyle which should be absorbed into the circula- tion. On the other hand, stomachic aperients and purgatives exhibited in combination with tonics and antispasmodics, and to the extent merely of promoting the digestive, assimilating, secreting, and excreting functions, are particularly benehcial. Either of Formula; 266. 4.30. to 456. 462., cun- tained in the Appendix, or the following, may be prescribed : — Ni). 49. B Aloes Socot. gr iv. ; tere ben& cum Gum. M;\stich. gr, ij., el adde Exir, GentiaiiiP Conip. et Mass. Pllul. G.ilbani Comp. aa gr. iij. ; Olei Anisi q. s. Fianl Pilulee iij. Iiora sumui quoiiiiie sumenda". 102. d. Diaphoretics in small doses, in con- junction with anodynes, deobstruents, or anti- ."pasmodics, are of service merely in as far as ihey may preserve a regular state of an important function, and prevent the determinations to inter- nal organs which frequently follow any inter- ruption to it. But proluse perspirations and icarm bathing are more generally prejudicial than otherwise. Indeed, whatever relaxes the cuta- neous surfaces beyond a certain degree has an injurious effect upon affections of the lungs which ITS Treatment. 151 are not acutely inflainmatory, and particularly in the pituitous chronic asthma. When the paroxysm is associated with the dry catarrh, diaphoretics inay be carried further with advan- tage ; and when combined with expectorants and antispasmodics (§ 91.), they are more generally applicable. 103. B. Expecto}ants, alterants, attenuanls, and deobstruents, or substances supposed tc have sotne one or more of these effects, h.ive been very generally recommended in asthma. Several of tliese have little or no effect, and others may even be injurious. — a. The expectorants most fre- quently employed are those already noticed ; but 1 believe thjt they are seldom productive of much advantage, given in the interval. When the disease is complicated, as it not iiifrequently IS, with dry catarih, or irritation of the bronchial mucous surface, those substances whicn have the effect of sootliing irritation, relaxing spasm, and softening the pulse, as James's powder, kermes, ipecacuanha, camphor, antimonial wine, are in (act the best expectorants ; inasmuch as ihey tend more to render the bronchial secretion less tena- cious, where it is glutinous and obstructing the bronchi, and to dnninish its quantity when too copious, than those which are of a heating or sti- mulating kind. 104. b. Amongst those medicines which are considered as atteiiuants, deobstruents, and alter- ants, there ate none which possess greater claims to consideration in this disease than the pure alkalies and their carbonates, or their combination with oils, and antispasmodic or narcotic sub- stances. However the propriety of applying the above terms to certain medicines in this disease may be cavilled at, thee cannot be the smallest doubt, in the minds of those who closely ob-erve the operation of remedies, that certain substances produce effects, on the respiratory surfaces and on their seci-eiions, that justify the use of these terms. The alkalies in various forms of combina- tion, but particularly with oi7s,'have been much praised by Wolff, Bachf, Sargonk, Mascagni, and Laenmc. Either in the pure state or in that of carbonates, combined with tlie oils of aniseed, or of almonds, with ipecacuanha, small doses of blue pill, and hyoscyamus, the /lafprf alkalies are amongst the best remedies to wliich we can have recourse, particularly in the catarrhal cr b onchial complications, and when the disease is connected, as it very often is, with irritability or other disorder of the digestive organs. 1 have experienced the greatest service, in practice, from the following, and from Formula ]So. 348. 457. No. ."iO. B Sodae Carbon, exsic. 3ij.; Pulv. Ipecacu- anhiEgr. vj.; Piiul. HydrarL-. gr. vj. ; Olei Ani»i ill xij. vel q. s. ut liant Pilulte xviij., quarum sumantur duo, bis terve quotidie. No. ; 1. H Potassae Carbon. 3ij.; Pilul. Hvdrarg. gr iv. ; Extr. llyoscyami (vel Extr. Papaveris Albi) 3 j. ; Olei Amydal. Diilc. q. s. ut fiaiit Pilulae xviij., quarum capiat biiias ter quotiilie. 105. Under this head, I may make further mention of the balsams, combined with small doses of rhubarb, or with the addition of mag- nesia ; of a combination of assafcetida, or myrrh, wiih galbanum, ipecacuanha, and soap, or the fixed alkalies (F. 503 — 510.); frictions with sti- mulating or antispasmodic liniments in the course of the spine (see the Li.mmems in the Appendix) ; the nitro-hydrochloric acid wash, in a tepid stale, L 4 152 over the chest, night and morning, or either the one or other only ; warm clothing, &c. 106. C. blisters, issues, and artificial erup- tions are often extremely beneficial, particularly when asthma lias supervened to suppressed dis- charges, to exantheiiiatous diseases, or in the gouty and rheumatic diathesis. A large blister, applied between the shoulders or on the chest, a smaller one kept open, and issues and setons, have been recommended by the majority of wri- ters. Zacuti's Lusitani's and Sevi.rinus ad- vise the actual or potential cautery to the nape of the neck. The production of artificial eruptions over the chest by the ointment of tiie potassio-tar- trate of antimony, appears to me, from consider- able experience of its effects for many years (see Loud. Med. Repository, vol. xvii. p. 302.), pre- ferable to any other mode of counter-irritation in asthma, particularly when the use of it is com- menced during the interval. 107. D. Tonics and astringents. — a. The use of the preparations of bark during the intervals has the support of the best writers on the disease. Amongst these I may notice Fi.oyer, Bang, Chapman, Htberden, Feldmann, Ranoe, Frank, Withers, Rya\, Bree, and Laennec. The states of the disease in which tliey recommend it, are, 1st, When the disease assumes a periodic type, or when it is connected with malaria ; 2d, In the pituitous form of the disease, when the habit is relaxed and leucophlegmaiic ; and, 3d, When the stomach is mucii debilitated. There can he no doubt of the preparations of hark or the sulphate of quinine being indicated in such cases. Indeed, wherever the powers of the constitution require to be rallied, and where there exists no inflam- matory initation to contra-indicate it, bark and other tonics are frequently beneficial. In these cases, the decoction or the infusion may bj given, with the liquor ammonise acetatis, and vini ipeca- cuanhae, or with the carbonates of the alkalies. 108. b. I have derived great service from the sulphate and aide of zinc in the humoral form of asthma, particularly under the circumstances now desciibed. Either of tliese preparations may be combined with ipecacuanha, camphor, myrrh, hyoscyamus, conium. opium, &c., according to the peculiarities of the case. Where it is desir- able to produce a nauseating or emetic operation during the fit, or in anticipation of it, tiie suliihate of zinc is the next best medicine to ipecacuanlia that can be employed. 109. c. The preparations of iron have met with the approbation of Biiee and Stanoer, particu- larly the sulphate. It may be employed in similar cases to those for which bark and the sulphate of zinc are prescribed. I can only allude to the recommendation of the mineral acids with opium, by Floyer, .\ et Prax. Ailmir. I. iii. ol)s. \'1& Mai/erne, Praxis, &c. p.|184 — »>'//«, Pathologia Cerebri, rap. 12. ; et de Mnrb. ( onvuls. cap. xii. p. 94. — Floi/er, (Jii rhe Astlima. (.ond. ifJyS —Dicmcrbraeck. Observ. et Curat. C. n. Ki.—Pun/hul, Ergo Astlimaticis Tahella; de .Siil|)liMre. Monsp. \t^->:i. — Duver, Legacy, c. p. 4(1 — ILiff'mann, De Astlini.ite Cunvul.s. Opera, vol. lii. ]). 10.'. — ^^■|T/,'^^(?r, Diss, de Asthma' e. Hafn. \1W\. — Ettmullcr, Diss, de .\sthrnate. I.ips. 1710; et Opera, a Ztvhigtwro, t ii. p. 109 y^/irrt/. Diss. deSpirandi Difficultate. Hal. n->C<. — jHiickcr, De Astlunatis Vera Patho!. ct I'lierapia Hal. 17i'2 Uanuii, in Act. Reg. Soc. Med. Haiin. vol. ii. p. 1()3., vol. iii. p. 362., el vol. iv. p. 'ID'.), — Bang, in Il]id. vol. i. p. 10. 1(2. WQ.—Aiiakou', in Iniil.. vol. i. p. 30S._ Knhs, Medicin. Keob^cli. I), li. Ii. iii. Mo. 7 — Akensidc. Medical Transac. of Col!, ol Phys. vol. 1 . No 7. p 93.— ly/ii/tt. Works, p. Wl.— lVithcrs, Treatise (jn the Astlnna. Loi'id, \lxr,. — SMl. Rat. Medendi, p. iii. p. 3G., et p. vii. p. 2M. — '/'/ii/rni>ts, Med. and Chirnrg. Remerk. i. p. I(i4. — AW/nr, Observations on the A.slhiria,&c. Lond, 1709. — Nei/cr, De As-thmate et i jus Spec. Got. m'J.—Jiyan, On the llisiory and Cure of Asthma. 1/ nil. 1793. — Krctsch- mar, Ilorii. .Arcliiv, 1>. i p. i27. — Chapman, in Med eal Communications, Ike. vol. i. No, T/.—JIeberdi'ti, Coni- jnent. Ue Morb. &c. cap. II. — Monro, in Kdin. Mid. Essavs, vol. iii. p. 31(i. — .S'(»/sora, in Ibid. vol. vi. p. 121. — Jivs/i. in Edin. Med. Conimenr. vol. iv. p. 198. _ I'uthrr- gill. Works, vol. ii. — Aleiamlcr, in Kdin. Med. (Joni- ment. vol. xv. — J'ercivul, Medical ^'s^ays, vol. i. p. 209. and vol. iii. p. 270. — Mnc/tride, Med. Obser . and Inquiri>-8, vi. No. 2 Michaaiis, in Riehter Cliir. Bibl. b, v. p. 127. — Mciicdgni, .Suit' Uso di Carboiiato di Potas.sa, i\c. Mem, dell Soc. Ital. Rom. xii. 1H(M llrfc. Practical lni|iiiry into disordered Respiration. Lond. \HI)';.—ZiU/m/>/,'Vr:i\tO de rAslhnie, Hvo. Paris, 1H()9 Slaiigir, in Med, and Chirnrg. 'I'rans. vol. \. — Scliiiii'lliiiaitii, Anlciumg zu Criindongeiner M»dicinalverl'assung, tli.i p. W.K—llmn, Arcliiv (iir Pract. Mod. Jan. \v,\\, p. H7, — lienke, Ibid, b. vi. p. 271. — Loebel, and Heinecken, in Ibid. July, 1810, p. 187., et May, 1812, p. bl\. — Heitiecker, Huleland, Journ. der Pract. Arzneyk. b. vi. p. 74 IVickmann, in Iliid. b. i. p. 18. — Hahnemann, in Ibid. b. iv. p. 755. — Hujeland, in Ibid. b. iv.—Heil, Fieberlehre, b. iv. p. 820. p. 02. — iVolJf', Hufeland Journ. der Pract. Ueilk-xviii. b. 1st, p. AS. — Loeffler, in Iliid. xxi. b. Kst, p. (0. — r,7- bfrg, in Ibid, xxvi, b. 3d, p. 26 Portal, Mem. sur la Nat. et le Traitement des Plus. Maladies, t. ii. p. 70. — J. Frank, Praxeos Medicse Univ. Preecept. P. ii, vol. vii. p. 379. — Roslan, Journ Gener. de Med. Sept. 1818; et Nouv. Journ. de Medecine, t. iii. p. \.— Chiistie, in Edin. Med. and Surg. Jouiri vol. vii. p, I5S Schlesirigir, Hufe- land nnd Himly, Journ. der Pr. Heilk. Jan. 18i0, p. 1 15. — Lacnncc. De {'Auscultation Mediate, 2 t. Paris, l^26. — ly. Philip, Philos. Tr.ms. 1817-22. — /iewscmem, Ueber den Ban der Lungen-Fol. Berl. 1822. — Andral, Revue Med. t. iii. 1824, p. 3 '0.; et Clinique Medlcale, t, ii p. 72. — J. Forbes. Me i. and Phys. Jouin. Oct 1822. — Georfiet, .Sur le Systenie Nei veux, t. ii. Pans, 8vo. 18i:2 J. Hem gin, in Journ. Compl. t. v Ferrus, Diet, de Medeciiie, t.iii. art. Astlime, p. 101 Cruveilhi^r, Nouv. Bibliotli. Me 1. t. T. p. I7i). — Bricheteau, Archives Gener. de Med. t. ix. p. 534 Jolly, Diet, de Med. et Chir. Prat, t.iii.— Parry, Elements of Pathology, § 474., and Posthumous Works, &c, vol, ii. p. 19. — Andrews, in Glasgow Med. Journ. vol. i. p. 177 Gannal, On the Inhalation of Chlo- rine. By Potter. Loud, 1830. — Kreyssig, Encyclopadisches Worterl). der Med, Wissenscli. b. iii. p, i;7o. — Forbes, Cyclop, of Pract. Med, vol, i. ATROPHY. — (From the privative a, and Tpo(p]i, nutrition, or rpocpiai, I nourish.) — Svn. Atro- pine, Coiisompiion, Fr. Uiigedeiben, Hchwiud- sucht, Aiisiehruiig, Ger. Voedeloosheii, Dut. Atrojia, Soinma MagrezM, Ital, Wasting, Eng. Clasjif. — Pathology — Morbid Structure, 1. Uefin. Dejicient nutrition of a part or of the whole J'rame, owing to which its natural dimen- sions are neceisnrilii reduced. 2. The healthy pioportions of the various parts of the frame are preserved by their vital endow- ment, and are intimately dependent upon the conditions of this influence. When it preserves its due relations throughout the frame, a con- tinued vital attraction of molecules from the blood takes place, to an extent sufficient to sup- ply the place of those particles, which, having h)st their vital affinity, are removed by absorption, 1 his slow process, by which animal particles are taken away, for a time, from the curient ot the circulation, assimilated in the various tissues, afterwards detached from them when they no longer ar-e suited to the purposes of the structure, and carried back to the circulating current to be partly eliminated from the fiame, and partly changed into ditferent conditions, is not ml're- quently liable to bedistuibed in some one of its parts or steps. Thus, when the vital influence of an organ, or of the whole frame, is in a state of activity, the attraction of molecules from the blood, similar to those constituting the different tissues, is energetic and extended to a greater number of such molecules, — they are held in closer affinity, and the bulk of the part is in- creased. But wiien the state of the vital endow- ment is reversed, when it is weak or depressed, this attraction proceeds slowly and languidly, and, llie existing affinity being also weak, the molecules comjiosing the tissues are soimer re- moved by the jirocess of absui-jition than in health, and the \rorl tlius circumstanced is wasted, from a more rapid loss ol its molecules than can be supplied by the low state of vital affinity. 'Thus, as in the former case, a double condition of the oiganisation, but of opposite natures, actually ob- tains ; namely, the attraction is extended to fewer molecules, and the affinity between them is more languidly exerted, they being more rapidly carried. by the process of absorption, back into the blood, from whence they came, in order to be p'li'tly changed and partly eliminated from it; and the part thus affected, instead of retaining; its healthy proportions, becomes wasted, deficient in its con- stituent molecules, or atrophied. Thus we per- ceive tliat there is a continued circulation of nutritious particles in the very tissues which they compose; that this circulation, and the affinity which preserves them in their spheres, is vital, influenced by, and fluctuating witii, the various conditions of the vital endowment of tiie frame, the nutrition and bulk of a part being intimately dependent upon it. 3. Nuirition being, then, the result of a vital attraction extrled between the molecules of mat- ter constituting the elementary tissues, and those which are similar to them in the blood, and being co-ordinate with the strength of that at- traction, atrophy necessarily proceeds from a diminution of this affinity, and the more rapid transit, consequent upon this diminution, of the particles which have been attracted, back into the current of the circulation. The healthy propor- tion of tiie tissues is therefore continued by a due equihbrium being preserved between the attractive influence on tlie one hand, and the continuance of vital affinity on the other. When eithtr the attraction is active, or its duration long, the bulk of the structures will be increased ; but wiien the former is wenk, or the latter of short continuance, atrophy will naturally result, 4. The truth of these propositions is evident from a due consideration of the various pheno- mena of health and disease, and by the numerous contingent circumstances which influence the conditions of the different structures of the body. At this place I will briefly describe, Jint, the appearances which atrophied structures assuiie; secondly, the various causes and circumstances which, influenced by the vitality of the frame, produce this change ; and, thiidli/, the treatment that m;iy be employed to remove it. 'Thus I will confine myself, at this place, entirely to the con- sideration of atrophy, in its generic acceptation ; the species being treated of under distinct and separate heads. 5. A. States or appearances of atrophied parts. — Atrophy may he confined to particular structures; it may affect only a particular constituent tissue of an organ, whilst its associated tissues are hypertrophied, and it may extend to various contiguous structures or unconnected oigans. A particular constituent tissue may, however, be wasted, and yet its associated structures may be augmented in bulk, as I have shown occasionally to occur, vvhen describing the morbid states of the liver. When this takes place, either no diminu- tion, or an actual increase of the whole organ, is observed. When a compound organ, or pait formed of various elementary tissues, is atrophied in all its constituents, the diminution of volume is then very remarkable; although, in some cases, as when the atrophy consists chiefly of a rare- faction of the internal structure of an organ, as of the lungs and bones, the external surface presents little or no change. 6. The earliest and most essential change in an atrophied part is diminution of the quantity of blood sent to it ; and next to this, and chiefly owing to it, is greater paleness of colour. Sub- ATROPHV. 155 . sequently the organisation is still more completely changed; so much so, frequently, that all traces of its original conformation are lost, and the part is reduced to the staie of cellular or fibro-cellular tissue, generally of small size. In some cases, the part is not only extremely atrophied, but at last disappears altogether. When membranous structures are atrophied, they become much thinner and more diaphanous than natural, or even perforated. 7. The atrophy of certain organs or parts is a natural or healthy change, as respects the foetus in utero, and the newly-tjorn infant. The parts which experience those changes are too well known to require noiice. Several structures, especially muscular parts, sometimes have preter- natural quantities of tat deposited on their surfiices during the progress of atrophy. This is often observed in respect of the heart, and appears to result from the same causes; namely, diminished vital energy, occasioning insufficient nutrition or assimilation ( 6 j 2, 3.), and a morbid secretion of fat, which olteu is as much a consequence of diminished viial energy, as insufficient nutrition of the different structures is the result of this state ; both changes being, in some cases, merely grades, in others modifications, of the same vital manifestation. 8. Various parts of the body naturally undergo marked atrophy during advanced age. Of these the most remarkable are the generative organs, particularly the ovaria, mammaiy glands, testes, the thyroid gland, the bulbs of the hair, adipose tissue, the luuiis, and bones. Atrophy of the«e and other parts has received a more particular notice under their respective heads. I may, how- ever, remark, respecting the atrophy which results from age, that it is very evidently the result of diminished vitality, especially as those parts which first expeiience a loss or diminution of their func- tions, either from age or exhaustion, are the first, to be atrophied ; and that it 'often differs from other forms of atrophy, in consisting meiely of a deficiency of the fluid constituents of the struc- tures— in a condensation and dying of the organs, and not of a loss of the molecules constituting their solid parts. 9. B. The secondary catises uhich, nnder the iyijluence oj' the vitalitif of frame, produce atrophy, are, 1st, Original deficiency of development, con- stiiu'ing congenital atrophy. This state of atrophy may exist in every grade, and may amount to a total absence of an organ or pari. When it takes place to this extent, it has evidently arisen from an arrest of the formative process, or of the deve- lopment of the tissues, in consequence of disease of the embryo. If llie disease affect the nervous centres, the parts supplied with nerves from them are sometimes either much atrophied or altogether wanting, as RliM. Rostan and Serres have shown. But this is only an occ isional occurrence ; for parts of the brain or of the spinal chord have merely consisted of a serous sac, and yet the organs of sense and the limbs have been fully developed ; and there have occurred many cases in which both brain and spinal chord have been entirely wanting, and yet the nerves proceeding from them and the organs which the nerves supjdy, have been fully formed ; evincing the truth of ilie doctrine stated by the writer many years since (see London Med. Repos. vol. xvii. for May, 1822 ; 15« and Notes to Richehand's Elements of Physiology, 1st ed. 1824), tliat the nerves are first lormeil, and the cerehro-spinal centres subsequently de- veloped. 10. 2d. A diminution of the influence of those nerves which preside over the circulation of a part, and its assimilative and proper functions, rapiflly reduces its volume. It is chiefly owing to this cause that the organs of generation waste in old persons. The ganglia which supply these organs, in both sexes, become, in old age, small and indistinct ; and the nerves which issue from them to these parts can scarcely be traced. 1 have no doubt that a similar result follows in- jury or change of the ganglia or ganglial nerves in other parts of the body. The paralysis attend- ant upon painters' colic is generally accom- panied with great wasting. In cases of unre- duced dislocation, when the head of the bone presses upon the nerves, wasting is a frequent consequence, chiefly owing to the incapability of exerting the voluntary muscles, which are rapidly atrophied when they remain inactive. Injuries of nerves, of whatever description, that interfere with their functions, will, as shown by Bell, Lob^tein, and several others, occasion atrophy. But I may add, that whilst injuries of ganglial nerves will produce it directly, by arresting the nutritive actions, injuiies of voluntary nerves occasion it indirectly only, and chiefly by depriving the muscles of their contractile powers, and reducing them to that state of inactivity which is more or less rapidly followed by atrophy. This is proved in the numerous instances which come before us of paralysis originating in the brain. The wasting of the paralysed limb in these cases is seldom great, and it is chiefly limited to the muscles ; the other structures, particularly the cellular and adipose, being unaffected. 11. 3d. Diminished supply of blood is a very frequent cause of atrophy. This may be local, as in cases of obliteration of a large arterial trunk, and when the functions of an organ cease. In many such cases, however, the obliteration may be the consequence of injury of the ganglial nerves which supply the ariery, or of the cessation of the functions of the part. The general state of atrophy which occurs after tubercular formations in the mesenteric glands, or in the lungs, is gene- rally partly owing to the diminution ot the entire mass of blood, together with lowered vital in- fluence ; the nutritious molecules, and the assimi- lating or attractive power being both deficient. A similar inference may also be extended to the wasting accompanying idiopathic anaemia. 12. 4th. When the funciions of a part or organ are arrested, atrojihy always results. This is remarkably the case in respect of the voluntary muscles (§ 10.). On the other hand, increased function of an organ contributes to augmented volume. The urinary and generative organs furnish well-known proofs of tho^e positions, and illustrate tlio^e with which 1 commenced, namely, that nutrition, and consequently atrophy, most intimately depend u|)on the states of vital mani- festation of an organ or part. Other organs, incapacitated from acting also undergo a marked diminution of their size. Even the lungs, when the principal bronchial tube of one lobe is ob- Hinictcil, will experience atrophy of that lobe, as JVIM. IIlynauu and Andiial l.ave shown. In AUSCULTATION. cases of death from hunger, the stomach and large bowels appear wasted. 13. 5th. Atrophy will also present itself as a consequence of inflammation ; and, in some cases, will amount to obliteration or disappearance of the part. Such changes are not infrequent in blood-vessels and excretory ducts. It is some- times observed in the spleen, liver, and gall- bladder; the last of which has been observed to be wanting or entirely obliterated from this cause. In the majority of such cases, the atrophy has proceeded from obstruction to an artery or vein having occurred during the disease, probably from the extension of inflammation to them, or from the pressure of some of the usual products of the inflammatory state. 14. C. Treatment o/" atrophy. — In all these circumstances under which atrophy occurs, it will always be observed that the vital energies, in some one or other of its manifestations, are dimi- nished or perverted — most frequently the former. This fact furnishes us with the most rational indi- cation as to the removal of the morbid state which it occasions. Having first ascertained the circum- stances and pathological states of the atrophied organ, we are to direct our attention to remove them as far as may be possible. We are next to endeavour to restore the natural vital energy of the organ by exciting its functions, and promoting the constitutional powers. Knowing that, by in- creasing the natural actions of a part, we thereby increase its nutrition and bulk, we should en- deavour to apply this principle to the removal of atrophy, but wiih a caiiiioiis avoidance of fatigue or exhaustion being occasioned by the means we use for this purpose. When the atrophy seems to depend upon the development of tubercles, or upon engorgements of lacteal glands or tumours, pre-sing upon nerves or large vessels, the prepar- ations of iodine are indicated, on account both of their influence in removing these tumours, and of their excellent tonic powers when judiciously administered. In many cases the functions of the digestive organs — stomach, liver, and bowels — are torpid, and consequently the nutritious fluids are not sufficiently prepared to be assimi- lated in the different tissues. Healthy chyle is not supplied in the requisite quantity, or, if supplied, is not converted into healthy blood for the iiouiisli- meiit of the structures. In these cases, although the energy of the whole frame is deficient, yet our principal means of medication are to be directed to these organs. (See art. Tublrcular Con- sciMi-iioN, Marasmus, JMesentlric Disease, and Tabis Dorsalis.) BiBLioG. AND Refer. — Desmou/fns, in Journ. de Phy- sique, t. xc. i> 142. — Rihcs, in Bullet, de la Faciilte de Mc'il. t. vi. p. 2ii!». — Fi'rrus, Atrojiliie, in Diet, de Med. t. iii. )i. 143. — A7i(l)al, Clinique Medicale, t. iv, p. 11.; ct I'reiis d'Anatom. Pathol, t. i. sect. ii. cl). ii — Buuiilaiid, Diet, (le Med. et Cliiruig. Prat. t. iii. p. i.Vi\i. — LubiUin, Trailc d'Aiiatomie Pathologique, t. i. p. GO. AUSCULTATION. — (From auscuho, I list- en.) Classif. — Pathology, Semeiology. 1. This term is applied to the methods used to ascertain the seat and nature of disease, by the signs which may be recognised by the sense of hearing. It comjirises the study of all sounds indicative of disease, whether heard by the unassisted ear, or through the medium of instruments; and whether arising naturally, or produced artificially. The observ- AUSCULTATION - ations, I have to offer upon this mode of investi- galing disease may be arranged in the following manner , but 1 s'lall confine myself at this place to the consideration of tlie^'rst class of signs, and devote to the second class a distinct article. (See Pehcussion.) 2. I. Signs FURNnsHED by Sounds produced NATURALLY WITHIN THE BODY. A. Sounds hdving their seat in the chest. — o. Depending upon the passage of air during respir- ation, b. Proceeding from the action of the vocal organs, c. Depending upon the action of the heart. B. Sounds hacing tlieir origin in the arteries. C. Sounds seated ivithin the abdomen. — a. Pro- ceeding from air in the digestive tube, b. De- pending upon the foetal circulation. II. Signs furnished by Sounds produced ARTIFICIALLY. (See Percussion.) 3. Hippocrates remarked that the existence of fluids in the thoracic cavity might sometimes be ascertained by applying the ear for some tune to the side of the chest ; and our countryman Hook (^Posthumous JVorks, p. 39. &c.), in several very pointed observations, not only stated the importance of attending to the sounds pro- duced by the " internal motions and actions of bodies," but also of rendering them sensible so as to distinguish between them ; for the doing of both which, he thinks, " it is not impossible but that in many cases there may be helps found." M. Double, also, was in the habit of applying the ear closely to all parts of the chest, in order to examine the signs furnished by tlie action of the heart, and by respiration ; and published his recommendation to cultivate this means of diag- nosis, in his able work on Semeiology, two years before the appearance of M. Laennec's celebrated production. Although, therefore, M. Laennec may not have been the discoverer of the import- ance of auscultation in the investigation of disease, yet is he clearly entitled to the honour of dis- covering medmfe auscultation — of inventing the stethoscope — and not only of bringing both tiiese modes of examination into general use, but also of strongly recommending percussion, and of im- proving, in a very remarkable manner, our know- ledge of the patiiology of pectoral diseases. 4. It is unnecessary to occupy my limits with a description of the instrument teimed the stetho- scope, as its construction, with the improvements of iM. PioRRY, and the acoustic principles on which it assists the sense of hearing, have been frequently described, and are so simple, as to be readily understood, even by those who are not already acquainted with it. I may remark at this place, that auscultation, like every other method of investigation, requires practice for its perfection. The young practitioner should there- fore early commence the study of the sounds of respiration and of circulation, at first with the unaided ear upon the healthy subject, and pre- ferably on children, from five to twelve years of age, as in tliem all these sounds are distinct, and seldom modified by organic disease. Having made himself familiar with these sounds, by fre- quent recourse to this practice, he may provide himself with the cylindrical stetlioscope in gene- ral use, and with the one called Piorry's ; and, with their aid, continue his study of the sound produced within the living body, 5. Having limited myself at this place to the -OF Respiration. ' 157 consideration of the Signs furnished by Sounds PRODUCED naturally WITHIN THE BoDY, whether heard by the unassisted ear, or by the aid of the stethoscope, I proceed, Jirst, to notice the sotinds having their seat in the chest and throat. 1'hese sounds are chiefly produced by the natural move- ments of the parietes of this cavity and of the organs contained within it, and consist of, 1st, those of respiration; 2d, tho^e of the voice; and 3d, those of the heart. These will be successively considered. 6. I. Auscultation OF Respiration. — A. Of the healthy and simple respiratory sounds. The pas- sage of air into, and out of, the lungs occasions a somewhat different sound in various parts of the chest, owing to the difference of size of the tubes through which the air passes. Hence the respira- tory sound has one character in the small bronchi and air-cells, another in the large bronchi, and another in the trachea. These sounds have been respectively denominated, by Laennec, An- dral, and Williams— the best writers on auscul- tation— vesicular, bronchial, and tracheal. The tracheal sound is heard in the anterior and lateral parts of the neck, the upper portion of the sternum, and the sternal part of the subclavian regions. The bronchial respiration is heard in the middle portion of the sternum, and paits of the mammary regions contiguous to it, and in the axillary and intei scapular regions. Vesicular respiration is perceptible over the remaining parts of the chest in health. These sounds are double ; the one being that of inspiration, the other of ex- piration. The former is much stronger than the latter, which is often scarcely to be heard by the unpractised ear, unless assisted by the stethoscope. 7. It is difficult to describe these sounds with accuracy. The vesicular sound is a dull and diffuse 1 murmur, or a feeble oieathing, resem- bling that proceeding from the passage of the air through the nostrils in a healthy and quiet sleep. The bronchial respiration is fnore tubular and blowing, and is chiefly confined in health to the situation of the largest bronchi. The tracheal sound merely conveys the idea of air passing through a tube of larger calibre, and is more hollow and blowing. 8. The lespiratory sounds vary in their in- tensity, not only in different persons, but also in the same person, at different epochs of life, and at various limes. The thickness of the parietes of the chest does not materially diminish their intensity ; but the activity of the lespiratory func- tion affects them niost materially ; this function presenting different grades of activity in different persons. Dr. Williams has remarked that they are more distinct afier meals and moderate exer- cise. After excessive exertion they are diminished. Fear, and the depressing passions, have a similar effect. 9. The respiratory sounds are greatly modified by age. From birth to the period of puberty, they are much louder and shrillei' than in after life, and the whole respiratory function more active. This state of the respiration has been called puerile by Laennec ; and occurs sometimes in adults, either generally or partially, from mo- mentary excitation, or the presence of disease in a part or parts of the lungs. At puberty the respir- ation is less noisy ; and in a few years becomes much deeper, and assumes the adult character. 158 AUSCULTATION — OF Respiration. 10. The vesicular sound being the result of I other diseases in which it occurs, the crepitation the perfect penetration of tlie air into the lungs, its equal and simple presence is a sign of the healthy performance of the function. But this sound may vary in degree. It may be feeble in all parts, owing to constitutional peculiarity, or only in particular parts, when we should suspect disease; but it is no proof of disease, unless it lie associated with certain peculiarities of sound hereafter to be noticed. The total absence of respiratory sound in a part indicates either the exclusion of the air from the part of the pulmo- nary tissue underneath, or effusion of fluids, or the introduction of air into the pleura. Here we must have recourse io pemission , in order to give precision to the information. (See Percussion.) In some cases the n:itural vesicular sound is al)sent, and a bronchial respiration is heard. In these we must infer that the vesicular murmur is suppressed by a condensation of the pulmonary structure, which, owin^ to this change, becomes so good a conductor of sound, that the bronchial respiration eitlier becomes louder or is heard in unusual places. In other cases, a sound re- sembling the tracheal is heard in situations where vesicular respiratiim alone exi-ts in health. 'J'his is caused by the passage of air into an ulcerated cavity or cavern communicating with the bronchi, and from this circumstance is called cavernous respiration. 11. B. Of the morhid respiratory sounds. — The respiratory sounds are not only varied in degree, but also in kind, or they are mixed with different adventitious sounds. These variations of kind are produced, 1st, by changes in the parietes and vicinity of the tubes, and in their secretions ; and, 2d. by morbid states exterior to the pul- monary tissup. Under the FmsT of these are ranked the different I'arieties of sound produced hi/ the presence of morhid secretions ivithin the air- tubes, and the lesions producing these secretions. 'J'his class of morbid sounds have been variously denominated. By the French they have been named rule ; by some of our own writers the word rattle, and by Dr Johnson the word whee'^e, have been used. As we have no English term which so fully expresses the idea, to which this morbid sound gives rise, as the word rhonchus, adiipted by Dr. Williams, and some trench pathologists, 1 shall use it here. 12. a. Moist crepitans rhonchus, the rale crepi- tant of Laennlc, the crepitant rhonchus of Dr. Whliams, has its seat in the air-cells and minute bronchi. It resembles the sound from rubbing a lock of hair between the finger and thumb when held c'ose to the ear; or the crepit- ation of a piece of lung ilistended with air when compiesseil. It is generally unitoim, and con- tinues to the end of inspiration, and seems to ari»;e from diminished (alii)re of the minute brimclii, owing to interstitial effusion, and the admixture of the respired air with the secreted or effusefl fluids in the air-cells and tubes. It is characferisiic of incipient hepati-ation of the lungs from pneumonia, and of its resolution ; of fcdema and apoplexy of the organ ; sometimes of early phthisis, of pulmonary catiirrh, and bronchitis. I'jut it is only pathognomonic of the first stage of pneumonia ; and the more viscid the mucus that is secreted, the more distinct is the cnpitant character of the rhonchus. In the is less perfect. 13. 6. Dry crepitans rhonchus, the craquement of Laknnec, resembles the sound produced by blowing into a dried bladder, and conveys the impression of air distending lungs that have been more or less dried, and whose cells have been unequally, but much dilated. It is only heard during inspiration, and occurs only in pulmonary emphysema. 14. c. Drq bronchial rhonchus. — Tliis is either sibilous, rale sibilant sec ; or so7iorous, rale sonore sec, of Laennec. The former is a low or loud, shrill or bass, and prolonged whistle, such as may be produced by air passing through a small ci^,_ cular aperture, and is owing to some contraction or constriction of the bronchi. The latter is a dull, prolonged, snoring sound ; sometimes very loud. It occasionally resembles the bass note of a violoncello, or bassoon, or the buzzing of an insect. It seems to be produced by a flattened contraction in a bronchus of considerable size, leaving very little aperture ; and arising from external pressure of the bronchial tube, from local thickening of its mucous lining, or from tenacious mucus within its canal. In a modifi- cation of the rhonchus, which Dr. Williams calls the dry inucous rlumchus, the sound lesembles that of a click-wheel, and is produced by a portion of very adhesive mucus attached to tiie bronchial lining, which, yielding with a jerking resistance to the air forcing its passage, thereby occasions a ticking sound. 15. d. The mucous rhonchus, the rale muqueux of Laennec, the mucous rhonchus of Dr. Wil- liams, takes place in the bronchial tubes, and is produced by the passage of air through a thickish fluid, giving rise to a kind of buhhting within the air-tubes. It is most frequent in bronchitis and pulmonary catarrh, accompanied with mucous secretion ; in hjemoptysis, in phthisis, in pneumo- nia, and in other diseases which are attended at any period with expectoration. This rhonchus is more gurgling, loud, irregular, and coarse, the larger the bronchi in which it is seated, the bubbles being there larger and more unequal. In the trachea, these characters arc particularly marked, and have been denominated tracheal from this circumstance, by M. Laennec. In the smaller bronchi, on the other hand, this rhonchus is more ef|ual, and its characters less remarkable, the bubbles being of much smaller size. The bubbles producing the mucous rhonchus must ne- cessarily vary in their characters with the varying fluidity of the secretion, and thus the rhonchi will differ accordingly. If the fluid lie very thin, the bubbles will be numerous, readily formed, and rapidly break : but if it be viscid, they will be fewer in number, and will often pass along the tubes for some way before they break, the sound being diffused, more regular, and rare. Also the continuance of the rhonchus will be an indication of the quantity of rK|uid present in the bronchi, as justly remarked by Dr. Williams. If this rhonchus accompany only the hr>t pare of in- spiration and the end of expiration, the secretion must be scanty. But if the whole of the respir- atory act be attended with this sound, then we mny conclude that the quantity of fluid is con- siderable, hud extends to the smaller bronchi. 16. e. The cavernous rhonchus, or gnrgouille- AUSCULTATION — OF the Voice, 159 ment, llie mucous rhonchus of morbid excavations in the lungs, occurs when these cavities contain a fluid, ami communicate with tha bronchi. It generally exists in the advanced stage of tuber- cular phthisis, in abscess, and partial gangrene of the lungs. This rhonchus is characterised by a strongly marked mucous gurgling or bubbling sound, confined to a small spot and fleterminate situation, and is particularly markeil upon the pa- tient taking a full inspiration, or afler coughing. 17. It may be remarked that this class of morbid respiratory sounds — proceeding from changes in the parietes of the tubes, and in their secretions — will sometimes be more or less ob- scurely henrd through ellusions in the pleura, when not very large. I proceed to consider the second class of morbid sounds, or those arising Jrom lesions exterior to the pulmonary tissue. 18. a. Metallic resonance, tintement metallique of Laennec, is observed only when a quantity ol" air is accumulated in the pleural cavity, as in pneumothorax ; or rarely in cases where very large tuberculous excavations are formed in the lungs. It is most commonly heard when both air and fluid are effused in the pleural cavity, and when there is a communication between this cavity and tiie bronchi. It is most di>tmctly heard upon roughing, Laennec has distinguished two va- rieties of this sound, namely, metallic tinkling, and amphoric bussing or resonance. These sounds are occasioned by the impulse given to the air accumulated in the pleura, by the vibrations of air rushing through a fistulous opening in the pul- moniiry pleura, or strikmg against a condensed part of the pulmonary tissue, or of the pleura itself. 19. 6. Rubbing sound, the sound of friction, the bruit de froitement ascendant et descendant of Laennec. This sound has been particularly in- vestigated by M^I. HoNORE and Reynaud. It is an obscure, dull sound, perfectly distinct from the respiratory sounds, but synchronous with the motions ol the parietes of the chest during inspir- ation and expiration, and resembling that pro- duced by the rubbing of two soft and somewhat rough bodies on each other. It is loudest, or only heard during inspiration. It is sometimes present in interlobular emphysema, but is more frequently and sensibly heard in pleuritis, with partial albuminous exudation, and with little or no effusion of serum. 20. II. Auscultation of the Voice. — The voice, although produced chiefly in the larynx, lias its sound partially propagateil inwards i)y the air in the trachea and bronchi, occasioning, in the smaller ramifications of the latter, a vibratory sen- sation or fremitus, rather than a distinct sound to the ear through the stethoscope ; but, in persons with a large chest and strong voice, a more dis- tinct vocal resonance. When the instrument is applied in the situation of the larger bronchi, as between the scapuhe and under the axillae, the voice is heard much more distinctly, and the arti- culation may even be distinguished ; but the sound does not seem to enter the cylinder, or to traverse its tube. If we place the stethoscope on the trachea or larynx, when the pati.nt is speaking, we hear the whole of the words, loudly and arti- culately, and as if passing through the instrument to the ear. I'hese sounds have been called, from their site, bronchophony and laryngophony ; and arise from the vibrations propagated through the air contained in the trachea and bronchi, and which become weaker as they extend in the di- rection of the air-cells. 21. The degree of vocal resonance in the chest differs in different persons. It is loudest and most extensive in those who are thin, and have a strong, sharp, treble voice ; so that natural bron- chophony will extend further in young subjects and in females, particulaiiy through llie upper regions of the chest. In fat persons with a deep voice, the natural bronchophony is confined and obscure, especially during the deeper notes. In all the lower parts of the thorax, particularly during the deep tones of the voice, there is either no resonance, or merely a slight thiill or vibratory fremitus, which may likewise be felt upon ap- plying the hand to its parietes. Such are the healthy sounds of the voice in difl^eient parts of the chest ; but in certain states of disease they are very materially altered, and both the bronchial and laryngeal sounds are developed in places where they never exist in health. Of the various ma- nifestations of these sounds in disease, I now proceed to take a brief notice, 22. a. Bronchophony is developed in disease by the same causes that render the bronchial respir- ation audible, viz. condensation of the substance of the lungs in the vicinity of large bronchial tubes, without diminishing their calibres, as in hepatisation or induration from the formation of tubercular matter. Fiom this circumstance bronchophony is an important symptom in pneu- monia and phthisis. When the condensation is seated near the surface of the upper portions of the lung, and near a large bronchus, the sound may nearly approach laryngophony. The bron- chial respiration is generally present with bron- chophony, excepting when the hepatisation is ex- tensive, 23. h. ^gophony (from at^, alyhs, a goat, the sound resembling the cry ot" this animal,) is merely a modification of bronchophony ; and occurs when, with the circumstances which pro- duce it, there are superadded the existence of a thin layer of fluid between the surface of the lungs and the pleura cosialis. The bleatino' sound of the voice to which the term a^gophony has been applied is variously modified in dif- ferent persons, according to the natural tone of their voice, and the different modifications of the diseases which produce it ; thus it will resemble the squeaking of Punch ; or pos-ess a shriller or sharper key, and sound more like the echo of the patient's voice than the voice itself, ^l^gophony only exists in pleurisy or slight hydrothorax, when the quantity of fluid effused is no more than forms a thin layer beween the luncs and parietes of the chest, Laennec states that he has found this symptom present in almost every case of pleurisy ; and considers it to be owing to the natural resonance of the voice in the bronchial tubes, rendered more distinct by the compress'on of the pulmonary texture, and modified by its transmission through a thin layer of fluid in a state of vibration, l)r, Williams ascribes it to " the successive undulations of the liquid, the result of an irregular transmission of the so- norous vibrations." ^Tgophony often co-exists with bronchophony, and the one passes into the other. 160 AUSCULTATION — or the Heart, 24. c. Pectoriloquy. — The existence, in disease, of vocal resonance in any part of the chest, to the extent of laryngophony, has bt^en termed pectnriloquij by Laennec. It may be either im- perfect or perfect. It is the result of a morbid cavity, formed in the substance of the lungs, and communicating with the bronciii ; to which cavity the sound of the voice, or vibrations of the air in the tubes, is propagated. When the stethoscope is a])plied to a part of the chest, under which one of these cavities is situated, the words vvhich the patient utters seem to proceed from that spot ; aad hence the term pectoriloquy. " The distinction between perfect and imperfect pectoriloquy is, as in the case of natural resonance, whether the voice seems to traverse the tube, or remain at the end ; and the physical difference producing the two modifications consists in the size and situation of the cavity. The most perfect pectoriloquy is produced in cavities of moderate size, which are situated near the surface of the lung, and freely communicate with a large bronchial tube. If the cavity be deep-seated, or if its communication with the bronchi be imperfect, the resonance of the voice will not amount to perfect pectoriloquy. True pectoriloquy produced by a cavity, is generally abruptly circumscribed, so that its limits can be distinctly traced." — (Williams's liational Exposi- tion, &;c, p. 43.). Andral appears to be correct in considering perfect pectoriloquy as not com- mon, and that the imperfect state of this sound, or bronchophony, is very frequently mistaken for it. When present in any part of the chest where there is naturally no bronchial resonance, it may be considered as a certain indication of the ex- istence of a morbid cavity, generally tubercular ; and when heard in situations of natural bronchial resonance, although more doubtful, yet, if it be perfect, distinctly circumscribed, and heard on one side only, the some conclusion must be come to. It may be further added, that an empty state of the cavity, its rounded and regular shape, and natural sh:irpness of the voice, particularly in women and chilclren, tend to render pectoriloquy perfect. 25. III. Auscultation of the Heart. — A. In its healthy state. I have always viewed Laen- nec s explination of the sounds proceeding from tiie heart's contractions as the most defective part of the exposition of his system ; and a similar opinion seems to have been entertained by Mr. TiiRNER, Dr. Williams, and several others. The observations of IMr. Turner, and of Drs. Stores and Corrigan, first shook the staoility of the views of Laennec on tiiis sul)ject ; and the recently published researches of JJr. Hope have almost altogether overthrown them. A.s I consider the exposition of the actions and sounds of the heart, given in Dr. Hope's work, to be ihe most accu- rate, I shall follow it on this occasion. 26. Tst. Of the Contractions of the Heart in the order of their occurrence, i^c. — 'l"he first motion of the heart following the interval of re|)0se, is the systole of the auricle. It is a very bi'icf and slight contractile movement, most considerable in the auricular appendix, and propagated toward the ventricle, in the systole of which it terminates, by a nearly continuous aciion. 'l"he systole of the ventricle commences suddenly and diminishes considerably liie volume of the organ. " Syn- chronous with the systole are the first sound, the inipul.-,e of the apex ygainst the ribs, and the pulse of the vessels near the heart ; " the pulse at the radial arteries following at a barely appre- ciable interval. The diastole of the ventricles follows their systole ; and these compartments return, by an instantaneous expansive movement, to the same state as during the previous interval | of repose. The diastole is accompanied with the ■" second sound, with a rush of blood from the au- ricle, by a contractile motion of this cavity most observable at its sinus, and by a retrocession of « the apex of the heart from the ribs. " Next I succeeds the interval of repose, during which the % ventricles lemain at rest in a state of fulness, though not of distension, through the whole period intervening between the second and the first sounds ; but the auricle remains at rest during the first portion only of that period, the remainder being occupied by its next contraction, with which recommences the series of actions described." — (Hope on the Dis. of the Heart, ^c. p. 40.) 27. The rhylhm of the heart, or the duration of the several parts of this series of actions, con- stituting what may be called a beat, is the same as described by Laennec : — 1st, The ventricular systole occupies half the time of a whole beat ; 2d, The ventricular diastole occupies a fourth, or at most a third ; 3d, The interval of ventricular repose occupies a fourth, or rather less, during the latter half of which the auricular systole takes place. 28. 2d. Causes and mechanism of the motion,— ~ The auricles, being always in a state of fulness, arrive, during the first half of the period of repose of the ventricles, at a slate of distension, on which they react and propel a small additional quantity of blood into the full but not yet distended ven- tricles, in order to bring them to this state, and to cause them to react, and thus expel a greater or less portion of their contents. During the ex- pulsion of the contents of the ventricles, Dr. Hope considers that the apex of the heart is tilted upwards and forwards, and occasions the impulse against the ribs, in consequence of the retraction of the ventricles upon their base, and on the auricles, which, being in a state of extreme dis- tension, serve as a fulcrum beneath them. The diastole of th.; ventricles appears to be occasioned, 1st, by the relaxation of the principal part of their muscular structure, assisted by an elastic prooerty ; 2d, by the distension of the auricles, which has arrived at its height, and brings into action ceitain layers of ventricular fibres having a powerful influence in distending these cavities; 3d, by the width of the ariculo-ventricular open- ing, which allows the blood to rush instantane- ously, and with facility, from the auricles into the ventricles. 'I'he blood expelled from the former cavities into the latter being instantly replaced from the venaj cava', distension of the auricles immediately recurs, and the same seiies of actions is continued. 29. 3d. Causes of the sounds. — There can be no doubt that the snunds of the heart's actions are not produced by the mere contraction of its muscular structure. To what other cause can we impute them ? I conceive that they can only be referred to the action of the parietes of the cavities on the fluid circulating through them, and to the motions of this fluid. According to this view, which has been very diligently invcsti- AUSCULTATIOX — gated by Dr. Hope, the systole of the ventricle is the cause of tlie first sound, by the impulse it communicates to the blood, and the diastole of the ventricle is the cause of the second sound ; owing;, in the opinion of this writer, to the rush of blood from the auricles, produced as already explained (§ 26.), and the succession of the stream against the walls of the ventricle, when abruptly arrested by the completion of the dia- stole. 30. I consider that it is cl.arly made out, 1st, That the impulse, the pulse, and the first sound, coincide ; 2d, That the ventricle is concerned in the production of the second sound, although the exact manner in whicii the motions of the ven- tricle and tiiis sound are connected has not yet been conclusively ascertained ; and, 3d, That the actions of the auricles are insufficient to produce either impulse or sound, and that neither the one nor tiie other result from them. With respect to the production of the second sound, I think that the opinions of Mr. Turner. Dr. Corrioan, and Dr. Williams, are untenable, and therefore may not be stated ; and that the explanation of Dr. Hope requires further confirmation. From the third of these facts I believe that it may be legitimately inferred, that the physical signs of disease of the auricles are very imperfect, and therefore uncertain. 31. B. Auscultation of the morbid sounds and impulse of the heart. — 1st, Of the impulse of the heart. Although, strictly sjieaking, the sounds of this organ are the only objects of auscultation, yet, as the impulse or shock it communicates to a part of the chest is usually made a matter of inquiry, although by a different sense, during the time that auscultation is being performed, I will briefly notice it at this place. The impulse ne- cessarily varies, even in health, in different per- sons, with the state of the heart's action, and the liabit of body. It is also greatly modified by mental emotions, and by various affections of the digestive and otiier organs. It is always syn- chronous with the first sound of the heart ; but, in rare cases, a slight second impulse also accom- panies the second sound ; but this is felt deeper in the cliest ; is more of an obscure tremor, much slighter in degree than the chief impulse or shock, and is only met with in cases of hypertrophy with dilatation. 32. W^hen the impulse is prolonged, strong, and characterised by an extensive heaving movement, thickening of the walls of the ventricles may be inferred. It shc.ild, however, be recollected, that whatever excites the feelmgs of the minil, or hurries the circulation, will occasion a strong impulse; but, in such cases, the actions of the heart are also unusually frecjuent. Morbid im- pulse of the heart is present in the states of both mental and corporeal repose, and is often un- connected with increased frequency, as in hyper- trophy of the ventricles. 33. The impulse may be diminished, even in health, as by the depressing passions. It is often constitutionally so small in amount, as scarcely to be felt. It is also lowered by diseases of remote organ-!, as diarrhcea, &c., and by abstinence and blood-letting, and whatever depresses the energies of the system. It is generally weak in congestion of the cavities of the heart, in cases of thinning of their parietes, in the asthmatic paroxysm, in Vol. I. OF THE Heart's Sounds. 161 congestion of the lungs, in some cases of pneu- monia, and in the advanced states of various diseases; and it may even, although very rarely, accompany certain states of hypertrophy of the heart, particularly during the operation of debili- tating causes. 34. In health, the impulse is usually limited to the immediate region of the heart, and chiefly in the situation of the cartilages of the fourth, fifth, sixth, and seventh ribs. Its sphere is ex- tended by increased action of the organ, whether the result of mental or corporeal excitement or of disease ; by hypertrophy, and by certain organic changes of organs in the immediate vicinity. When the muscular parietes of the heart are increased without any dilatation of the cavities, the sphere of impulse is not extended far beyond its healthy site ; but when dilatation is conibined with hypertrophy, the impulse may often be felt on the right side of the sternum, below the clavi- cles, and even on the back. Diseases of adjoining organs, as hepatisation of parts of the lungs in the vicinity, effusions of fluids in the pleural or pericardiac cavities, tumours in the mediastinum, close adhesions of the lungs to the costal pleura, adhesion of the pericardium to the heart, dis- placement of the heart, and even an enlarged liver or spleen — when rising into the thoracic cavity, and pressing the diaphragm upon the pe- ricardium— will extend, often to a considerable distance, the impulse of the heart, owing to the increased density of parts which receive the shock. Much discussion has arisen as to the manner in which the heart's shock is produced. Further than that it is occasioned by the muscular actions of the organ, I believe that the phenomenon has not been satisfactorily explained, at least in such a way as accords with the various conditions it pre- sents in health and disea e. The explanation given by Dr. Hope has been already stated (§ 28.). 35. 2d. Of the chunges produced in the natural sounds of the heart bij disease. — The sounds of the heart vary in different persons, even in health. In some they are loud and distinct ; in others, the reverse : they may also be dull or clear, in respect of their key. They are generally distinctly lieard by the unaided ear, but more accurately by the stethoscope. The impulse and sound are never both present in health, to a great degree, as they depend upon opposite conditions of the ventricles; the impulse being great in proportion to the thickness of the pa- rietes of the ventricles, the sound to their thin- ness. The sounds of the left side of the heart are strongest at the junction of the cartilages of the left fourth, filth, sixth, and seventh ribs, with the sternum : those of the right side, under the sternum, and towards its right edge. The sphere of the heart's sounds is, in a very few persons, nearly limited to the sphere of impulse; but it is generally far more extended, even in health. It should not be overlooked, that the sphere of sound is much larger in children and young per- sons, in females, in the lean, and in those who have narrow or small chests ; whereas, in persons whose thoracic cavity is large, and its parietes thick, muscular, or fat, the sound is heard much less extensively. 36. The sphere and loudness of the heart's sounds are increased by the same moral, physical, and morbid causes, which have been stated (o M 162 AUSCULTATION augment its impulse (§ 31.). Therefore, when frequency of pulse accompanies increase of sound, no actual disease may exist ; but when a natural or slow state of the pulse is attended with an augmented range of sound, disease may be mucli more certainly anticipated. The circumstant;e of the sphere of sound being extended by the or- ganic lesions already noticed as conveying the impulse of the heart (§ 34.), and by tuberculous excavations in (he lungs, should not be over- looked. In taking account of the heart's sounds, we should also be aware that the sounds of re- spiration will occasionally mask them, as the heaving of the chest during inspiration will, in a slight degree, mask some of the shocks of the heart. Generally, the sounds of the heart are strongest in the left anterior part of the chest ; and progressively weaker in the sternal, in the right anterior, the left posterior, and in the right pos- terior parts successively. If this succession be deviated from, or in any way altered, disease exists ; and the degree, state, and order of devi- ation, become signs of some importance. It has been remarked by Laennec, that, when the sounds are heard beyond the healthy sphere, in persons with the chest vvell formed, and presenting none of the causes alluded to as giving rise to such extensive ranue, these persons will be found to be subject to palpitations, to shortness of breath upon the slightest exertion, to attacks of asthma, and to congestions of the internal viscera. 37. 3d. Of the adventitious sounds of the heart. — The sounds of the heart may not only be changed in degree, in extent of sphere, and in the succession of intensity, but entirely new sounds may be superadded. The most common of these are the bellows-sound (^brnit de soujfiet), the saw- sound (bruit de scie), and the rasp-sound {bruit de rape). These may eitiier take the place of the natural sounds, or may be conjoined or super- added to them ; and they may be present with either the first or second sound, or with both. The bellows-sound resembles the puffing of a pair of bellows, and conveys the idea of smooth- ness. The saw and rasp sounds are so named from their similarity to the sounds occasioned by the sawing or rasping of wood, and convey the idea of roughness. But the bellows-sound may insensibly pass into the others; and they all vary greatly in loudness. They may occupy the place of the first or the second of the heart's natural sounds, but more frequently that of the first than of the second. 'The saw and rasp sounds are generally louder, and present a wider range of intensity than the bellows-sound, which is more closely limited to the part which occasions it. 'I'hey may all be heard in arteries at a distance from the heart, more particularly the belio«s- souiid ; ami often when they do not exist in the region of the heart. When tiie saw-sound pro- ceeds from the heart, it may generally be traced along the arch of the aorta to the subclavian and carotid arteries. 38. The causes of these sounds, and the exact site of the chan;^es which produce them, are ob- viously the important considerations attached to them, 'i'hey have been accounteil for in various ways, even by their eminent discoverer; and, in general terms, they may be said to arise from unnatural or morbid motions induced in the cur- rent of blood circulating through the iieart, in- OF THE Heart's Sounds. stead of those natural motions which contribute to the healthy sounds of the organ. Hence, what- ever produces the morbid ciiange of the motions of the fluid, will occasion the adventitious sounds ; and we have reason to infer that such change is produced either by a permanent alteration of the apertures and canals through which the blood is propelled, or by a spasmodic or nervous state of the same parts. 39. The simple bellows-sound is more com- mon, and arises from slighter changes than the saw or rasp sounds, and is less to be depended upon in diagnosis. Pressure on an artery will occasion it ; and when present in the heart, it will sometimes be removed by blood-letting. When even existing permanently, although it is a very strong indication of organic change in the heart, it cannot be iiupliciily relied on ; but when only occasionally present, although such change may be its cause, yet it deserves no re- liance. The saw or rasp sounds are much less frequent than the other ; are much more con- stantly found in connection with contracted orifices of the heart ; and are very frequently indications of an increased degree of the same causes that produce the bellows-sound. It may, however, be generally inferred, 1st, That these sounds arise from some change in the orifices of the heart's cavities, produced by nervous or temporary causes, or by alteration of structure ; more fre- quently the latter. 2d, That these sounds, therefore, although they indicate the existence of organic disease, are not conclusive evidence of it, as they sometimes arise from other causes. 3d, That in proportion as these sounds possess more of the rasping character, the greater is the probability of organic change. 4th, If the sounds disappear after depletions, upon repose, or without sufficient reason, their dependence upon func- tional distuibance maybe inferred, although not implicitly relied on; their continued absence, however, strengthening the conclusion. 5th, The continuance of these sounds, notwithstanding the means now mentioned, or their diminution merely, is nearly conclusive of organic change. 6th, In- tensity of the sounds is no indication of the degree of valvular disease, or extent of the contractitm of an orifice ; as they may be weak, when these or- ganic changes are extreme. A moderate contrac- tion and size of current seem to be requisite to their lull production. The relation of these sounds to the particular changes which occasion them is considered in connection with these changes. (See 1 1 E A nx — Diseases of, ) 40. The rasp and saw sounds are often accom- panied with a phenomenon resembling a species of impulse, and which can be estimated by the sense of touch only. This is the thrill or purring tremor, termed '^ bruissemenl" by CouviSAnr, and "freinissementcataire" by I.aennec, which is felt when the fingers are placed upon the heart, or on an artery. When existing in the heart, the feeling excited upon applying the hand to the region of this organ, is analogous to the sensation occasioned by the saw or rasp sounds. The fact is, that the same pathological condition gives rise merely to modified sensations as perceived by the medium of different organs, the object exciting the sensations being one and the same ; the only dilFereoce being that a stronger current is required to produce the pur- BARBIERS — Symptoms — Treatment. 163 ring tremor, than is necessary to the production of the sounds. It is owing to tills circumstance tiiat it is stron^iest in hypertrophy of tiie ventricle, or when liie circuluiion is iiuiried. A firm pres- sure of I he hand on the region of tiie heart is necessary to feel it well; and a moderate pressure to feel it in tiie arteries. 41. The last adventitious sound that I have to notice is that which Laennec has termed the " cri du nu'r," and which resembles the creaking of the leather of a new saddle. It seems to be chiefly observed in cases of per. carditis, when tiie oppos- ing surfaces of the pericardium lose their lubri- city, and when tliey are rendered rough by the exudation of coagulable albumen, or are in an unusual state of diyness ; and to be occasioned eitiier by their friction wiiilst in this state, or by the motions produced in tliat part of the peiicar- dium reflected over tiie heart during the systoles and diastoles of the ventricles. It is unnecessary to add any thing at this place, to what has been stated respecting the ausculta- tory signs in diseases of arteries, and particuhirly of tiie aorta. The employnient of auscullation of the abdomen, in order to ascertain the existence of pregnancy, is comprised in the article Pregnancy. BiBnoG. AND Refer Double, Semeiologie Generate, t. ii. p. 31. Pans, 1S17 — Laeimcc, He I'Aiisoultatioii Me- diate, t. ii. Ire edit. Paris, 1819; Sine edit. Pans, 1^30 — Berlin et Botii/laud, Sur les Maladies du Coeur, &c. Paris, 1824. — j7irf;v//,Clinique Medicate, t. ii. et iii. Paris, 1824, passim. — Turner, in Trans, of Med. and Chirurg. Soc. of Edin. vol. ii P. Colin. Sur I'Exploratinn de la Poitrine, &c. 2d edit. Paris, 1830. — C. J. H. IVilliams, Rational Expos, of the Pliysical Signs of Diseases of the I.nngs and Pleura, &c. 8vo. Lond. 182s Rcynaud, Joui n. Hebdomad. No. 65. t. v. p. 57(> Stokes, in I'raiis- actions of Irish College of Pliysicians. vol. v. p. 305. — TuWiiseiid, Ibid. p. 137 — Corrigan, in Dub. Med. Trans. New Series, vol. i. pp. 1 \!>l Ferguson, in Ibid. p. 11. — Hope, in Lond Med. Gaz. \&2^,passitn ; and Diseases of the Heart and Great Vessels, 8vo. 1831, p. 28. et seq.— Forbes, and Williimis, Cyclop. Pract. Med. vol. i. p. s\i), and vol. iv. art. Slelhoscope, Brit, and For. Med. Rev. No. 5.,' p. 1S+. (See also Bibliog. and Rijer. to arts. llEiKT and Lungs.) BARBIERS. — Classif. 4. Class, Nervous Diseases; 3. Order, Affecting the ftluscles (Good), I. Cr.ASS, V. Order (Author). 1. Defin. Tremor, tvith pricking formicatin'r pain ; numbness of the extremities, principaliif of' the lower, folUnved by contractions and paralijsis of the limbs, inarticulation or hoarseness of' voice, emaciation, and sinking of ail the vital powers, 2. This disease has been described by various authors since the appearance of the worli of BoNTius. But we have had no satisfactory ac- count of it until IVIr. Marshall furnished it in his interesting work on the diseases of Ceylon, and distinguished it from Beriberi, with wiiich it had been confounded by Bontius, and recently by Dr. Good. Dr. J. Clark had, however, noticed it briefly as a distinct disease, many years previously ; and the definitions of it given by Saovages, L1NN.EITS, Sagar, and Aikin, seem to indicate that they were not altogether unacquainted with it-i nature. I shall here follow the accounts of it by Dr. Clark and Mr. Marshall, as they seem to be the most precise, and to have been the result of much experience. 3. 1. Symptoms. — The disease generally com- mences with a lormicative pricking pain in the muscles of the lower extremities, with numbness, tremors, and an imperfect command of the powers of locomotion. Both lower limbs are always equally afiected. In some cases the forearms and hands, and the powers of articulation, are subsequently similarly seized. As the disease advances, the patient is unable to walk steadily. Standing or walking aggravates the uneasiness of the limbs, aEd either is impossible without sup- port. The superior extremities become incapable of performing their usual offices ; and want of sound sleep, great sluggishness, and inactivity, are complained of. The limbs afterwards are deprived of all feeling, and lo^e their natural temperature ; the extensor muscles become quite paralytic, and the limbs contracted. Loss of ap- petite, indigestion, emaciation, &c. soon follow, and the pulse gradually sinks to a frequent, thready, or fluttering state; all tiie vital powers become depressed, and death supervenes. As respects its duration, it may be protracted for many months, and it may present various grades of seventy. Its forms are frequently more mild, the above de- scription applying to the severer cases. The diagnosis of barbiers is described in the article Beriberi, to which disease it is closely allied, and with whicii it may be associated. 4. Mr. Marshall observed many cases of this disease, in 1812, amongst the Caffres composing the 4th Ceylon Regiment. He never noticed it amongst the indigenous inhabitants of this island ; and, fiom every information he could collect, it was only known amongst Africans who had arrived in the island ; and he believed that late comers were more disposed to it than acclimated resi- denteis. Mr. ]Marshali, also met with it in Europeans in Ceylon: and he has observed an analogous affection in horses and dogs ; from which, however, he never knew them to recover. 5. Dr. LiND states that barbiers is a species of palsy frequent in India, aflfecting chiefly tlie lower classes of Europeans, who frequently sleep, when intoxicated, in the open air, exposed to the land winds ; and that its attack is sudjen, depriving the limbs of motion, &c. It appears also to prevail in Java. Dr. Bostock has described a case which seems to be nearly allied to this affection : and I have been occasionally consulted by pa- tients, whose complaints were very nearly the same as those now described ; and who have been seen by several medical men, A very remarkable and extreme case of it, in a gentleman from Ja- maica, was lately attended by Dr. Roscoe and the author. 6. II. The REMOTE Causes of this affection are cold and moisture applied to the body ; intoxi- cation, irregularities, and excesses consequent upon inebriety ; violent exercise in the sun ; lying down in the open air during the heat of the day ; exposure to the cold chilling dews of the night, or sleeping when thus exposed ; suddenly obstructed perspiriition, by currents of air ; long fasting, and whatever exhausts the energies of life. The translator of Bontius's work states that barbiers is frequent on the Malabar coast, where it attacks those who unwarily sleep exposed to the land winds, paiticularly in the months of January, Fe- bruary, and March ; and that it is seldom cured till after the shifting of the monsoon, unless the patient changes the climate. 7. III. Treatment. — This affection appears to oiiginate in depressing and debilitating causes; to be characterised by a gradual and chronic sink- ing of the nervous energy ; and therefore to require M 2 164 BERIBEUl — Symptoms— Cause?. a tonic, restorative, and stimulating treatment. Frictions, with stimulating liniments along the course of the spine, and on the limbs ; attention to tlie due performance of the secreting and ex- creting functions ; tonics, combined with warm cardiacs, gentle aperients, and antispasmodics ; vesication ; stinging with nettles ; electricity, the internal use of the extract of nux vomica, or of stiychnine; the application of external warmth, and the use of warm clothing ; a nourishing and digestible diet ; regular habits, and change to a healthy air or locality ; are the chief means ot cure. Dr. Joiis' Clauk states, that the few Eu- ropeans whom he saw ill with this disease were cured by a change of climate, and a sea voyage. In otiier respects the treatment is the same as that recommended in the article Palsy, particularly palsy from lead. (See Colic — Jroni Lead, and Palsy.) BiBLioG. AND Refeu Bont>us,'De Medicina Indoium, c. i. — Lind, On the Diseases incidental to Europeans in Hot Climates, !xc. 4th ed. Lond. 1788. — JoA« Clark, On tlie Diseases which prevail in long Voyages to Hot Countries, and on those in the East Indies, &c., vol. i. p. 91t. Lond. 1792, 8vo Marshall, Notes on the Medical Topography of Ceylon, &c. 8vo. IHi'i, p. IGl Bustock, Trans, of the Med. and Chirurg. Society, vol. ix. art. i. p. I Good, Study of Medicine, vol. iv. p. 493. BERIBERI. Syn. Beriheria, Synclonits Beri- beria. Good. Hydrops Asthinaticiis, Rogers. Classif. 4. Class, ])isea^es of the Nervous Function ; 3. Order, Affecting the Mus- cles {Good). I. Class, V. Order (Au- thor). 1. Defin. Oppressed breathing ; paralytic weakness, numbness, and stiffness of the lower extremities ; general oedema, with a swollen and bloated countenance. 2. I. Symptoms. — i. The attack is in some cases gradual ; in others sudden and severe. When it is the former, wliitdi is more commonly the case, the patient complains for several days of weakness, and inability or unwillingness to exert himself. To these feelings, pain, numbness, and stiffness ot the lower extremities, accompanied with oedema ; muscular weakness, and dyspnoea, particularly upon motion ; a feeling of numbness, fulness, op- pre-^sion, and weight at the scrobicuius cordis; extension of tlie oedema over the body, and leu- cophlegmatic tumescence of the countenance, su- pervene. As the disease advances, the dyspnoea increases, and the face is more svvollen and bloated. The lip'^, which were at first pale, become bluish and livid; and the lower extremities more numb and feeble, or even paralytic. The stomach is ol'ten irritable, especially in the advanced stages of the disease, when it ol'ten rejects all ingesta ; the bowels constipated ; the uiine scanty, high-co- loured, and sometimes almost suppressed ; the pulse is at first either more or less (juick, small, and hard, or but little iifTectcd ; subse(|uently ir- regular or intermittent ; and the dyspna-a at last becomes distressing and attended with great anxiety, and sometimes with a pi culiar fluttering about the lieart, and sinking or leipothymia, succeeded by palpitations. \n the more advanced stages of the disease the patient cannot lie down ; his sleep is uneasy, interi uplc-d, and always unsound ; and the recumbent posture induces violent palpitations, sense of suffocation, and anxiety. The ofipression at the pra;cordia and weight at the scrobicuius cordis increase, and are attended with spasms of the muscles of the thorax anil abdomen; the countenance becomes livid, and the extrciriiiies cold ; vomiting is either frequent or nearly inces- sant; the pulse sinks, and the patient dies nearly in a state of suffocation. 3. In tills, the most common form of the dis- ease, it usually runs its course in about three weeks or a month ; but sometimes, in slighter cases, the patient experiences several relapses, and is at last carried off unexpectedly, when the anasarcous symptoms have nearly disappeared, and he has been judged convalescent. In some of the milder attacks, several of the above sym- ptoms are extremely slight, and the disease is altogether of much longer duration, or consists apparently of several distinct seizures. Such seem to have been the form of the majority of cases which Mr. Maushall has given in his work. In the most sudden and severe attacks, however, the pain, numbness, stiffness, and oedema of the lower extremities; the dyspnoea and anxiety, and all the more urgent .symptoms, are either present from nearly the commencement, or they rapidly super- vene to each other, and the patient dies in a few hours, or in a day or two. Such cases appear to be not so frequent as those which are more mild. 4. ii. Appearances on dissection. — There is always a leucoplilegmatic appearance of the surface,, with cedt matous effusion to a greater or less extent in the sub-cutaneous cellular tissue, and paleness of the muscles; sometimes with a watery obesity and deposition of fat in the abdominal regions. Oc- casionally there is fluid effustd between the mem- branes of the brain, and in the ventricles ; with vascularity of the encephalon, and slight appear- ances of congestion in the spinal canal. Serum is always found effused in the pleural cavity, and very frequently in the pericardium. 'J'lie lungs are gorged with daik blood, and their structure more or less oedetnatous. Old cellular adhesions are sometimes found connecting the opposite sur- faces of the pleur.-E. The heart is generally soft, enlarged, and flabby. The peritoneal sac often contains much serum ; and the liver is always found engorged with daik blood, is unusually large, and of a very deep colour. The spleen is generally very soft, large, and is, as well as the laige veins, loaded with black blood. Sometimes intlammatory appearances are observed in the dia- phragm and serous surfaces; but these are only occasionally and very loosely noticed. (Chrisiie, Rogkhs, Marshall, and Hamilton.) 5. II. Diagnosis. — The paralytic symptoms, constant dyspncea, universal oedema, and leuco- plilegmatic intumescence of the countenance, characterise this disease sufificiently, and distin- guish it from the cachexia AJricana, with which it has been considered as being allied. (See i.l\- ciiicxY — African.) It has been, however, more commonly confounded with harhiers ; but the history of both diseases shows various differences between them. liarbiers is a chronic disease, in which the paralysis, tremors, spasms, and cen- tral tions of the limbs, and emaciation, are the most remarkable symptoms; whilst the present malady is acute, often of very short duration, and is characterised by general udenia, dyspna'a, the suddenness of its fatal termination, and the fre- (juency of its occurrence. The former seems to be a species of iniralysis ; and the latter to be a form of acute dropsy, very generally diffused through- out the body, and com[)licated with paralytic symptoms. But it must be admitted that the one is often associated with the other, either of them BERIBERI — Diagnosis — TiiEATsir.NT. 105 being tlie primary affection. Mr. ]Malcoi.:i1=o>:, who has had extensive experience of boih forms of disease, states that ca-es commencing in the form of barbiers, often suddenly take on the more fatal and acute form of beriberi; and that the latter frequently present the symptoms characteristic of t!ie former. He further remaiks, that the two classes of cases prevail in the same places, seasons, and circumstances, and require the -^ame remedies. 6. in. Causes. — This disease is nearly pecu- liar to India, and is most prevalent in various parts of Ceylon, on the Malabar coast, and in that tract of country which extends from Madras to Gan- jam ; being, according to Mr. Hamilton, confined to these parts, and extending no further inland than forty miles. It is most prevalent during the de- cline of one mon«oon and the setting in of another, when the air is damp, cold, and loaded with va- pours, and the vicissitudes of temperature greatest. Captain PEiinvAi,, in his " History of Ceylon," ascribes it to low diet and bad water, and partly to the dampness of the climate. Mr. Ridley, however, states that the worst cases he had of it at Trincomalee, where it was remarkably prevalent, occurred during the change from wet to dry wea- ther, when a strong and hot land wind prevailed ; and that its severest prevaletice at Pulitoopane was during dry weather. In the Indian peninsula it seldom extends further inland than sixty miles ; but in Ceylon, particularly at Kandy, it has pre- vailed under very different circumstances, as re- spects season, states of atmosphere, and topo- graphy. It seems to have been much more prevalent in particular districts, where it may be said to be endemic, in one year than in another; and to have assumed, at distant period-;, a nearly epidemic form. Dr. Christie states, that a residence of several months in the district where it prevails is necessary to its production ; and Dr. Rogers never observed it in any person who had not re- sided six months or upwards in Ceylon. Dr. Hunter has met with it also in Indian seamen, particularly Lascars, after exposure to a moist and variable atmosphere and privations of food. 7. Opinions respecting both the remote and prox- imate causes of the disease differ very materially among those who have had opportunities of ob- serving it. Mr. Dick found it most prevalent amongst soldiers who had taken much mercury for venereal complaints, and who were addicted to spirituous liquors. He never met with it in the officers. Mr. Ridley, on the other hand, states, that, in 1804, " both officers and privates fell vic- tims to it." Drs. Christie and Rogers view it as a consequence of deficient and poor diet, im- pure and moist air, and of prolonged exposure to niar-h exhalations; and consequently as a disease of debility, — an opinion which is in accordance with that of Mr. Dick and Mr. Ridley. Mr. CoLQuiiouN found it to prevail notwithstanding prophylactic measures founded on these views ; and Mr. RIarshall did not observe it to occur amongst ilie troops in Ceylon, when exposed to the causes to which Drs. Christie and Rogers impute it; and from that circumstance, as well as from the effects of medicines, thinks it a disease of increased vascular action ; in which opinion Mr. IIasiilton agrees with him. 8. Niitiire of tbe disease. — It is evident that the nature of this disease can be inferred only from what \i known of its exciting causes, and the ap- pearances presented after death. Of the former we have imperfect, loose, and conflicting inform- ation : of the latter no precise and minute ac- count. It is difficult to explain the early occur- rence of the paralytic symptoms. The spinal chord, brain, and nerves supplying the lower ex- tremities, have not been sufficiently investigated to warrant a positive opinion as to the particular state of the parts, to which these symptoms may be referred. The palsy, however, may depend upon congestion of the veins and effusion of fluid within the spinal canal.* The dyspnoea is evidently owing to congestion of the lungs, and oedema of their structure ; and the feeble and irregular action of the heart may be imputed to the weakened vital energy and structure of the organ, in connection with effusion of serum in some cases into the pericardium. The effusion of fluid within the serous cavities may, like other effusions, depend upon very different slates of the vessels and se- rous membranes. By Mr. INIarshall and JMr. Hamilton it has been viewed as the result of inflammatory action. But where there is merely an effusion of a limpid serum, without either al- buminous flocculi or adhesions, there evidently can exist no actual inflammation. Viewing the antecedent symptoms in relation to the post mor- tem appearances, as far as both have been de- scribed, it may be infeired that the disease is more dependent upon active congestion of the lungs, liver, and spinal chord, than upon any of the usual states of inflammatory action ; and that this congestion is intimately connected with weakened power of the nervous and circulating systems ; manifested chiefly in the heart and ex- treme capillaries of the cellular and serous struc- tures, with imperfect function of the liver and lungs, and with effusion of serum to a greater or less extent into the shut cavities and cellular structures of the body; giving rise to a nearly universal acute dropsy, and complicated with more or less of paralysis of the lower extremities. 9. IV. Treatment. — According to this view of the disease, the discordant accounts given of the success of treatment will be readily accounted for. When the disease prevailed very generally in the Carnatic, during 1782 and 1783, Mr. Dick, who appears to have treated a very great number of cases, found most advantage, during the former of these two seasons, from a pill, containing a quarter of a grain of extract of elaterium com- bined v\'ith extract of gentian, given every hour, until copious watery evacuations were procured ; and this plan was repeated every third or fourth day, till a cure was accomplished. In the fol- lowing season this treatment was not so suc- cessful. He found most advantage from large doses of spirit of nitre, antimonial wine, frictions with warm camphorated oil, aperient medicines, and wine to support the strength. Bleeding and mercury were ttied without benefit. Dr. Christie recommended mercury, to excite pty- alism, combined with squills; cordial liquors, consisting chiefly of gin punch; stimulating pedi- luvia, with warm liniments; and when the patient was convalescent, tonics, composed of bark, wine, and porter. In more urgent cases, he prescribed blisters to the chest, and brandy, * Since this was written, Mr. Malcolmson's work on the dispase has appeared, and proved the correctness of the above remaik. M 3 166 BLOOD — Healthv Relations of. aetlier, and laudanum, to relieve the vomiting, dyspnoea, and spasms. He found digitalis of no service. Mr. Hamilton's first cases terminated fatally under the plan recommended by Dr. Christie; and Rlr. Coi.quhoun trusted to mer- cury, but found that many of the patients who died in hospital of the di-^ease were in a state of salivation Irom this medicine. 10. This want of success led later writers on the disease to have recourse to other means. Dr. Hi'NTER had tried bloodletiing in one case, without any apparent effect either one way or another. Dr. Rogers stated, in his thesis on the disease, that blood-letting hastened the fatal ter- mination : but, according to IMr. Hamilton, he has since prescribed it successfully. Mr. Mar- shall appears to have been the first to employ- blood-letting in a decided and successful manner in the treatment of beriberi ; and the same prac- tice was adopted by Dr. Paterson (Marshall, on Ceylon, &;c. p. 161.), and by Mr. Hamilton. The bleeding was large, and repeated; and fol- lowed with the internal and external use of mercury, laudanum, and the vapour bath. To these were added purgatives of calomel and camboge. 11. i'he practice of Mr. Ridley, who expe- rienced, himself, two very severe attacks ; and wlio, excepting only Mr. Dick, has had the most extensive experience as respects this disease, liaving treated almost a hundred case^ in one year (1814) ; recommends a nearly similar treat- ment to that advised by Mr. Dick. In the early stage, he directs purgatives of calomel, jalap, and crystals of tartar ; the lower extremities to be well bathed, afterwards rubbed with camphor and oil of turpentine, or with the mercurial lini- ment, and then rolled in flannel bandages. He subsequently prescribes a pill, composed of one or two grains of calomel and two or three of powdered squills, every third hour; and a solu- tion of crystals of tartar, as common drink, or made into punch with geneva or arrack. In the more advanced stages, he advises blisters to the back of the neck, or to the seat of pain and tight- ness ; the warm-bath; frequent fomentations of the legs and abdomen, followed by frictions with mercurial ointment, camphor, and oil of turpen- tine ; and clysters with aether, and ptirgatives. When the dyspnoea, spasms, and vomiting are urgent, he states, that he has given large doses of opium, aether, and brandy, with stimulating diu- retics. When llu^y could be retained on the stomach, small and repeated doses of camboge were also exhibited. 12. From the above statements, as well as from the varying chancier of the disease in I'^uropeans and natives, in different seasons, as observed by l\lr. J)i( K, and Mr. M ai.coi.mson, and in various local- ities,— judging also from the nature and combina- tion of the remote causes, and from the pint mortem appearances, — 1 should infer, that a ilepletory treatment may sometimes be required amongst i^uro|)eans; and that the means of cure should be modified according to the characters of the ma- lady and tlie state of the vital energies; that, on some occasions, general blood letting — in others, cupping in the course of the spine ; blisters ; free purging with calomel, camboge, jalap, elaterium, &c. ; antispasmodics, consisting of opium, ajthers, brandy in some cases, camphor, &c. , diuretics, such as squills, cream of tar;ar, juniper, tere- bialliinule preparations, &c. ; the vii])our bath, or fomentations, followed by frictions with sti- mulating liniments, mercurial or camphorated liniments, with oil of turpentine, camphorated oils, along the spine and lower extremities ; ex- pectorants, consisting of ammoniacum, ipecacu- anha, camphor, &c. ; constitute the chief means that are likely to remove the internal congestions, to reduce the circulating fluid to a nearer equality with the vital power, to restrain effusion, and to restore the various secretions and excretions of the body. After these means have been judi- ciously administered according to the peculiarities of the case, or when circumstances seem to re- quire them earlier in the treatment, stimulating and restorative medicines may either be conjoined with the above, or be exhibited alone ou such oc- casions as may require them. BiBLioG. and IIefer Bontius, De Medicina Indorum, &c — Dick, in Duncan's Edinb. Medical Commentaries, vol. X. p. 207. — IV. Hunter, Diseases incident to Indian Spamon on long Voyagfs. Calc. 1804. — Hvgcrs, Diss, de Hydrope Asthmatico, Kdin.1808 — Hidley, Dublin Hosp. lleports, vol. ii. p. 2.'7 Mnrshall, Notes on the Medical Topography and Diseases ot' Ceylon, p. IGl. 8vo. Lond. Wl'i. — Hamilton, in Transac. of the Medical and Chir. Society of Edin. vol. ii. p. 12 Good, Study of Medicine, vol. iv. p. 4'.i3. — J. G. Malcolmsou, A Piact. Essay on the History and Treatment of Beriberi, 8vo. Madras, 1835. BLOOD. Syn. AT/xa, Gr. Sanguis. Lat. Sdng, Fr. Das Blut, Gehtut, Ger. Sangiie, Ital. Classif. General Pathology — JEtio'.ogy, Semeinlogfi, — General Therapeutics. 1. States OF THE Blood IN health. — 1. A. Of the states of the chyle. In order to acquire ac- curate ideas respecting the blood in disease, it is necessary to be acquainted with the varying conditions and appearances of the chyle, accord- ing to the food, from which it is chiefly ela- borated. To these, however, I can only briefly refer. This fluid, when removed from the tho- racic duct, is usually of an opaque white or opal- escent appearance, and separates into a serous portion, and more or less firm clot. The former resembles the serum of the blood, the latter con- si'^ts chiefly of fibrine. If the animal have been fed with fat animal food, the chyle at the time of coagulation assumes a rose colour, and, in addi- tion to the separation of the clot, which falls to the bottom of the vessel, a thin liquid oily layer forms on the surface of the serum. In animals fed on vegetable food, the chyle is generally opaline and nearly transparent, and separates into a serous fluid and a small fibrinous clot only. According to MiM. Prevost and Dumas the chyle contains globules, similar to those contained in the blood, but of a smaller size. The fibrinous coaguluni seems to be formed from their aggregation. The serum of the chyle also contains albumen, and the saline inpjedients found in the serum of the blood. 2. Ii. The globules of the blood, particularly in respect of their relation to the other constituents of this fluid, and the changes they experience when icmnvcd from the blood-vessels, excite the utmost interest in the mind of the pathologist. It is evident that they are suspended in the serum hy means of the vital influence which the blood derives from the vessels and organs in which it circulates. According to the microscopic re- S(!arches of Sir V,. Home, Mr. Bauer, and of MM. Phevost and Dumas, they consist of a central colourless sj)heroid ; and of a species of membranous sac of a red colour, surrounding this spheroid, from which it readily separates after death. 'J'he central bodies are transparent and spherical in the niammalia; and, when deprived of BLOOD — Healthy Relations of. 167 tlieir colouied envelope^, are generally disposed to n?sume ranges or fibrous meshes. The co- loured portion appears to be a kind of jelly, easily divisible ; but insoluble in water, from which it may be separated by repose. It is likewise trans- parent ; but much less so than the central cor- puscle ; and the fragments arising from its division are not susceptible of regular aggregation. 3. C. State of the blood in the vessels. — Ac- cording to tiie observations of Kolk.Treviranus, and others, the globules of the blood possess a rotary motion during life, independently of the motion an-ing from the impulse of the heart ; and this motion continues till coagulation takes place. More recently, this subject has been investigated by Professor Sciiuitz, of Berlin, who has con- firmed the fact respecting the intestine motion of the globules, by virtue of which they move on by themselves, surrounded by envelopes of colouring matter, and keeping at a distance from one another. 'J'his force, with which the globules of the blood are endowed whilst circulating in the vessels, I have, in my physiological notes, im- puted to the influence exerted by the ganglial nerves on the interior of the vessels, which they every wliere s-o abundantly supply, as stated in the article on the pathology of the Arteries. But, besides this force of mutual repulsion, to which the fluidity of the blood is evidently owing, under the vital influence exerted by the organic nerves on the vessels, there is evidently another force also in action, by which the globules are attracted by the tissues, when they are brought more intimately in contant with them during their circulation in the minute vessels. Whilst, then, the former force keeps the globules in a state of constant motion and repulsion, and is exerted in the stream of the circulation, the latter tends to bring the globules to a state of repose, and is exerted in the organic structures themselves, at the point of contact of the solids and the globules. I'his latter force, which was first very minutely examined by Profes-or Schui.tz, and briefly stated by M. Andral, in his Pathological Anatomy, ■without acknowledgment, may be compared to a vortex whence globules constantly pass from the arterial or terminal capillaries, and are lost in the different tissues. So that, although the vital en- dowment of the blood is manifested by its fluidity in the vessels, it assumes an opposite manifest- ation in the capillaries, where this fluid is brought ■within the sphere of the vitality of the difl^erent structures ; each one attracting from it those con- stituents of which itself is formed, and which are always present in healthy blood. 4. Thus we see organisation commencing in the chyle, advancing further in the blood, and reaching its acme in the vital attraction of the constituents of the tissues from the blood circu- lating in the capillaries which supply them. At this part of the circle, where the arterial capil- laries, with the fluid circulating through them, become, as it were, confounded with the tissues in which they are distributed, there appears, ac- cording to Professor Schultz, to be not only a constant attraction of particles by the tissues from the blood, but also an equal extrication of other particles from them into the blood received by the radicles of the veins. I'lius it appears, that as the proximate constituents of the different tissues exist in the blood, as was first shown by Dr. Prout, and subsequently insisted on by Ma- JENDIE and Andrai, ; and as these become iden- tified for a time with them, are afterwards de- tached, and flow back into the current of the circulation ; the intimate connection and mutual dependence of the blood and the diflferent solids, both in health and disease, ought not to be over- looked. But it is at the same time manifest that these constituents are kept in solution during cir- culation, and attracted during nutrition, by the vital influence; that the various parts into which the blood separates on removal from the vessels are only indications of its condition when cir- culating through the frame; that no such se- paration occurs in the healthy body, and never, excepting very partially, in disease ; that this change proceeds from the loss of vitality sustained by the blood when removed from the frame, and that the phenomena connected with it have an intimate relation to the vital endowment of this fluid, derived from the vessels and the nerves supplying them. 5. D. Coagulation of the blood. — 'J'his process is modified by numerous circumstances, and by various disea^^e*. Generally, however, the blood soon separates into two portions — the serum, and the coagulum or clot ; and in this separation the red globules are principally concerned ; it being chiefly the result of the loss of the vital motion which these globules possess in the vessels, and of the attraction existing between the colouring envelopes and central bodies. As the vital at- traction, which keeps the red substance fixed around the whitish corpuscles, ceases soon after the removal of the blood from the vein, these bodies can then obey the force which tends to unite them, and they then form a network, in whose meshes the liberated red particles are en- tangled, and thus produce the phenomena of co- agulation. If the coagulum be exposed to a stream of water, the colouring matter is washed away, while the aggregates formed by the colour- less corpuscles remain in the form of filaments, in which may be recognised an analogous struc- ture to muscular fibre, and constitute the fibrine of the blood. 6. It seems extremely probable, that the co- lourless globules observed in the chyle form the central corpuscles, &nd, when they have acquired their coloured envelopes in the progress of san- guifaction, constitute the red globules. And it appears equally reasonable to infer, that both the suspension of the globules in the serum, and the attraction between their coloured envelopes and colourless corpuscles, are entirely vital, inasmuch as both phenomena cease soon after the blood is removed from its source of vital endowment : and that vital manifestations become first apparent in the chyle, and still more so in the blood ; coagu- lation being the result of the lossof this endowment, and taking place with a celerity in proportion to the rapidity of its departure. In cases where the vital energy, or that manifestation of it exerted by the organic nerves on the vascular system, is unexhausted, or is in a state of healthy excite- ment, coagulation is perfect and somewhat slow ; but where it is depressed orjexhausted, this process is quicker, but much less complete. Besides these, it presents various other phenomena, which are intimately connected with the nature of mor- bid actions, and which J shall notice immediately. M 4 168 BLOOD — Excess 7. E. Chemical relations of the blood in health. — The analysis of the blood given by M. Le Canu, who obtained the prize given by the Aca- demie Iloyalc de Mcdecine of Paris, is extremely minute; and, as respects the principal ingredients, agrees very closely with the results stated by Bekzelius and Marcet. The oily matter first delected in the blood by Dr. Trail, and subse- quently found by Dis. Christison and Babing- TON, has likewise been recognised by him as con- stantly present in the serum. The results of the analysis of the serum by Le Canu, Berzei.ius, and MAncET, are as follow • — Water Albumen f Animal matter sol. I in water and alco. I Alhumen, com- *-i, bined with soda - I Crystallisable fat- I ty matter LOily matter *Muco-extract. mat. *Extractive mat. sol. in alcoh. and acetate of soda Hydrochlorate of soda and potash Sub-carb. and phosph of soda and sulph. potassje Phosph. of lime,mag., and iron, with sub- carb.of lime and mag. Loss - Le Canu. 1st Anal. 2ci Anal 906-00 78-00 f69 210 1-20 1-00 GOO 2-10 0-91 1-00 1000-00 901-00 81-20 2-05 2-. 5.5 2-10 1-30 5-32 2-00 0-87 1-Cl iro(i-oo 90.5 KO loon 90000 HG-80 6- GO 2-00 0-60 lono-no 8. The blood, according to M. Le Canu, con sists of the following constituents: — Water 780-145 Fibrine 2-100 Albumen 65-090 Colouring matter - - -133000 Crystallisable fatty matter Oily matter . - - . E.xtractive mat. soluble in alcohol and « ater - . - - - Albumen combined with sod-i - Chloruret of sodium and potassium, alkaline phosphate, suli)hate, and sub. carbonates - . - - Subcarbonate of lime and magnesia, pho.spliates of lime, magnesia, and iron, peroxide of iron - - - Loss . . . - - 2-430 1-310 1-790 l-liGS 78G-.590 3-565 69-415 119G2G 4-300 2*270 1-920 2-010 8-370 7-304 2-100 2-400 1-414 2-586 1000-000 1000-000 According to some chemists the blood also con- tains carbonic acid (Vogei, and others) ; a yellow colouring matter, resembling that of the bile and the urine (Ciievreul, Lassaigne, &c.) ; and a substance analogous to urea (Puevost, Dujias, Vauquei.in, and Segai.as). Vauqvelin and Ciievreul consider the fatty matter to be similar to that of the brain and nerves. 9. a. The quantity of water in the blood of a healthy person vanes, according to M. Le Canu, in 1000 parts, from B.'J3-13.'), the maximum, to 778-62 J, the minimum. He found tl)e medium (juantity in males to be 791-944, and in females 821-764. The quantity also appears to vaiy with the temperament ; as the tiimphatic tem- perament in the male furnished 830-566, in the temale 803-716 ; and the sanguineous in the male 786-.'i84, in the female 793-007. 10. 6. The albumen contained in 1000 parts of « I'robably tlic same coiistitMonts, differently named, and more minutely examined, by M. Le Canu. OF — Plethora. blood varies from 78-270, the maximum, In 57-890, the miuimum. It is nearly the same in the male as in the female, being only about one part more in the former. The difference in the quantity appears to have no relation to the tem- perament, nor to the age of the subject, from twenty to sixty years. 11. c. The quantity of Jibrine contained in the coagulum vaiies extremely. According to Ber- zELius it is only -75 for 1000 of the blood. M. Lassaigne states, that the fibrine of the blood of a young vigorous man is only .fg'y'L of its weight. In the researches of M. Le Canu, who has in- vestigated the subject more closely than his pre- decessors, the quantity of dry fibrine contained in 1000 parts of blood varies from 1-360 to 7-236 — the medium of twenty-two experiments being 4'298. It appeared to be greatest in the young or middle-aged of the sanguine temperament, and in the inflammatory state ; and least in the lymph- atic constitution, the aged, and those suffering under congestion or hasmorrhage. 12. d. The proportion of glohules varies much more remarkably in the blood of a healthy per- son, than that of the albumen; the maximum being 148-450, the minimum 68-349, and the medium 108-399, in 1000 parts of blood. The medium quantity in males was 132-150, and in females 99-169. The periods of life intervening between twenty and sixty years had no influence on its quantity, but it was found to vary with the temperament. The medium quantity in the lymphatic temperament was 117-300 among fe- males, and 116-667 among males; and in the sajjg-in'/iWMi temperament, 126-174 in females, and 136-497 in males ; giving 19-830 more globules to the sanguine temperament in 1000 parts of blood. M. Le Canu found the globules of blood greatly diminished in females subject to a copious flow of the menses. The quantity of globules is also, relatively to the other constituents of the blood, greatly diminished by blood letJlng, whilst ihe albuinen is not sensibly affected. Thus, a first bleeding furnished in 1000 parts of blood 792-897 of water, 70-210 of albumen, 9*163 so- luble salts and animal extractive matters, and 127-73 of globules ; but a third bleeding a few days afterwards in the same patient (a female), gave 834-053 of water, 71-111 of albumen, 7*329 of soluble salts and extractive matters, and 87-510 of globules. BiBLioG. AND Refer.— Marcel, in Transact, of Medico- Chir. Society of Lond. vol. ii. p. 365. — Bcrzclius and Marcel, in Ibid. vol. iii. pp. 199.231. — I'rout, Inquiry into the Origin and Properties of the Blood, in the An- nals of Mepr>ptnms. — Pleihora, in its slightest grades, is generally productive of little incon- venience. 'I'here are usually observed merely a greater disposition to sleep than in health ; less quickness and aptitude to ni ntal or corporeal ex- ertion : and a more marked disposition to suffer from and to be affected by the more energetic causes of disease. In an advanced degree it occa- sions lassitude, indolence, vertigo, or weight or pain of the head ; heavy, snoring, dreamy, and often unrefreshing sleep ; lurgescence of the countenance; suffusion of tlve eyes ; fulness of the veins, and of the pulse ; occasionally palpitations of the heart, and slight amaurosis. Such are the usual signs of ple'hora, short of actual disease, at least of such as may alarm the patient. When it proreeds further, it assumes eillier the features of inllatniriatoiy fever, with excess of action in Bome organ or part, or passes into general visceral congestion, ace Plethora iiisufficiento Morbnnim Uausa, Opp. sup. ii. pp. 1. 506 Stahl, Theoria Meilica Vera, Juncker's ed. Halfc, 1737, t>P- 303. 483, &c. ; et De I'leiliora. Erf. 1736.— y««rie)', Consiiectus MiHliriiia'. H.ilae. 17'i4, p. 7. el seq. — Nicolai, De .Singular, quiliiisd. ad Polyeemiam Spectantibus. Jengc, XTiQ.—Kitdjlsti'llcr, De Morb. ex Abund.intia Sanguinis oriiinilis. Helms, 1777 IVcickiird, Veruiischte Schriften, b. iii. p. 89.— Gregory, Conspect. Med. Theoret. ed. vi. p. \W2.—Horn, Bcitra;ie zur Medic. Klinik. vol. 11. p. 88 Calemard, I.atuyctle. Essai siir la Plethore ou I'olyemie, 4to. Paris, 18'JO.— Vi.idfi, Diet, des Sciences Med. t. xliii. p. 178 — Parry, Kli-ments of Pathology, '.'d ed. p. 30. A-^.—Rochoux, Dot. de Med. t. xvii. p. 123 —P. S. Denis, Reclierches Experini. sur le Sang Humain. 8vo. Paris, 1»30, p. 350. III. Local DETERMiNAxroN of Blood. SvN. Alflux of Blood; increased Momentum of Blood. Fluxion, Fr. Classif. Pathology. Therapeutics — ( Derivation, Bevuhion.) 25. The determination of a larger proportion of the circulating Jlnid to an organ or part, than is u^ualtti sent to it in health, not infrequently takes place independently of inflammation. This state of the local circulation has been, singularly enough, doubted by some writers, and too much insisted on bv others, more particularly by Dr. Parry, who assigned to it a greater importance in pa- thology than it is entitled to, and overlooked the fact that it is a part only or link in the chain of morbid causation. 26. i. Pathologigal Doctrine. — Determin- ation nf blood is intermediate between inflammation and local plelhoi'a. Inflammation is an actively morbid slate of the capillaries ; congestion a passive conilition of both them and the veins ; whilst deter- mination isa simply active or excited, but not other- wise diseased, state of both the arterial branches and the capillaries, the veins being unaffected, and re;idily returning the blood conveyed by the arte- ries. More or less determination of this fluid accompanies acute and sub-acute inflammations, and ha>morrhages; but it never attends congestion, unless this state pass into either of the former diseases, or be followed by augmented secretion from the congested organ. Local plethora (^23.) is a lower grade of local determination, or rather an intermediate state of the vascular system be- tween determination of blood and congestion. In other words, (a), Congestion ot blood is repletion of the veins, attended by depressed vital power — (/)) Local plethora, increased fulness of the vessels gener:dly, with integrity of viial power — (c) Local determination, augmented circulation and vital functions of the vessels — (d) Inflammation, an actively morbid state of the vessels, and or- ganic nerves supplying them, tending to change of structure and to disorganisation. As these pathological stales are often referred to, and are sometimes improperly confounded, it is therefore necessary to attend to the distinctions now drawn. 27. That determinations of blood actually oc- cur, and may even be excited at pleasure for a short lime, are matters of daily observation even in heallh ; und that such changes in the circula- tion of a part are occasioned by the influence of the nerves, particularly of the organic nerves sup- plying the vesseN, seems an equally well esta- blished fact. When these nerves are exciter), whether by heat, stimuli, friction, or irritating bodies, the capillaries experience a degree of ex- pansion,— a property with which they are na- turally, or rather vitally endowed. The eretliysin, expansibility, or slight erectility, which is evinced by the capillaries of certain organs in a very re- markable manner, exists more or less throughout BLOOD — Determinations op. 171 the frame, especially in mucous or cellular parts. When, therefore, this property is influenced by any agent possessed of the power, the diameter of the capillaries running between the arteries and commencement of the veins being increased, an enlarged stream of blood will necessarily pass through them, and a correspondent demand will be made upon the arteries supplying them, owing to the less resistance opposed to the current, and freer circulation in the part ihus circumstanced, provided that the return of blood by the veins be not impeded. If the circulation be thus in- creased as respects the volume of blood passing through the vessels, and continue thus facilitated, the demand thereby made upon the larger vessels and the heart will ultimately tend also to accele- rate it, and hence "ill result augmented volume and quickened circulation — the slates constituting determinations of blood. 28. The circulation of an organ or part may long remain in this state, particularly if its vital manifestations do not become exhausted, and if its nervous power continue excited by the agent or cause which first occasioned this condition, or by other influences operating in a similar manner. But if the vital or nervous power become de- pre.ssed, or otherwise changed, either congestion, or some form of inflammation, will generally ensue, or even haBinorrhage may supervene — a result which is not infrequent when ihe determination takes place to membranous viscera or parts, and to mucous surfaces. These being, therefore, not unusual terminations of simple determination of blood, means should generally be employed to remedy this state. The agent or cause exciting the vessels should be removed, and other iineasures directed that may equalise the circulation and di- minish its fulness, when the determination is con- nected with plethora, as it not infrequently is. 29. Determinations of blood to an organ are very frequently occasioned by whatever rouses its natural actions. If the part thus excited perform secreting functions, the increased secretion, in ad- dition to whatever excitement of the vessels may be produced, will of itself determine a greater flow of blood to it. Numerous proofs of this are furnished us by the progress of various diseases, and the appearances presented by others after death ; and endeavouring to follow nature, we attempt to remove determination or inflammations in vital organs, by inducing artificially an afflux of blood to parts and surfaces where it cannot be injurious, as to the skin, mucous digestive surface, extremities, &c., with the view of assisting other agents in soliciting or recalling it from the seat of disease. The exercise, also, of orafMns which possess not secreting functions, will likewise fa- vour an augmented flow of blood to them. Thus, exertion of the mental faculties and the passions determine an afflux of blood to the brain ; and of the muscular organs, to the spinal chord, muscles, and heart. It is of importance to be aware that the irregular distribution of the blood, whelhtr of this or of other kinds, may take place either when this fluid is more abunilant and richer thaa natural, or when it is deficient as well as poor; and that the change from the healthv state of the circulation is to be imputed primarily to ihe state of influence exerted by the organic class of nerves distributed to the vessels, whudi.thus influenced, control the volume of the blood circulating through 172 BLOOD — Deficiency of — An/ewia. them (§ 27.)-> fis well as modify its states and the rapidity of its circulation. The particular deter- minations of blood are noticed in their respective articles. BiBLioG. AND Uefep..— St a /il, De C'lnmotionibus San- guinis Activis et Passivis. Halse, 1698 ; et De Motu Shiu guinis et pendentibiis Vitiis, &c. Halae, 1700. — Fischer, Be Motu Sing. Natural!, Non-iiaturali, et Mixto. Erf. 1720.— Barthcx, Memoire sur les Fluxions, qui sent les Elemens essentiels dans divers Genres des Maladies, in Mi^inoires de la' Societe Med. d'Emulation, t. ii. p. 1 — Parry, Elements of Pathology and Tlierapeutics, 2d ed. I^ond. X'i'i.'b.—Authnr^m Lnnd. Med. Repos. vol.xxiii. p. 409 Barry, Exp. Researclies on the Blood. 8vo. Lond. 1826. 30. ii. Therapeutical DocTniNE. — Deriva- tion.— Revulsion. The doctrine of determination of blood sufficiently indicates the propriety of liaving recourse to means in the cure of various diseases, calculated to solicit a fiow of blood to parts where this may be done safely, and thus to diminish the quantity sent to tiie seat of dis- ease. This mode of practice was well understood, and very generally employed by the older physi- cians, upon the well-known pathological principle that, " ubi irritatin, ihi Jiuxiis." It must not, however, be overlooked that irritation will not always procure afHux of blood ; and that it is therefore not altogether identical with derivation either in a pathological or a therapeutical point of view. It does not come within my limits to point out the difference ; l)ut they are so far alike, that, in order to produce the latter, we frequently have recourse to the former. At the same time we must recollect that irritation will sometimes be of service even independently of any afHux of blood that may accompany it, or even although it should fail of producing this etTect. 31. It is almost unnecessary to enumerate the means, which we occasionally have recourse to in order to occasion a local determination of blood, and thus derive it from the seat of disease. These consist of numerous agents ; — a. Such as increase the circulation in the rete mucosum, as rubefacients, sinajiisms, external heat, &c. : b. Those which, in addition to augmented circula- tion, procure a discharge from the surface or part to which they are applied, as scalding water, blisters, irritating ointment, &c., purgatives and cathartics, &c. : c. Those which, by procuring a flow of tlie natural secretions, solicit an afHux of blood to the secreting organs, as certain purga- tives, diuretics, and diaphoretics : d. Those which, evacuate ihe viscera, increase the discharges from their mucous surface, and augment the secretions in adjoining organs, as emetics, cholagogue pur- gatives: e. Those whicii influence the circulatinn in the limbs and extremities, as frictions, the semi- cupium, various forfus of pediluvia, and manu- luvia ; abstraction of blood from llm feet or hands, by vena?section, leeches, or cuppin?, stimuhumg or scalding pediluvia, kc. ; ai)d,_/'. 'i'liose which permanently iriiiale and procure a coiiliiiued dis- charge, as deep scarifications, incisions, setons, issues ; caustic applications, as the alkalies, the inner bark of mezereon, moxas. &c. 32. All these occasion, in the first place, irri tation in the i)arl to which they are ap])lied, and, conse(]uent to this, an afHux of the circulating fluid. Some of them produce the primary, more remarkaldy than the secondary, ed'cct ; and when this is the case, ihe pain which is lelt is often an index of tiic extent of the former. This is the case with blisters, rubefacient epithems, sinapisms, and scalding applications ; and, therefore, much advantage is obtained from them in various dis- eases, independently of their secondary operation, particularly when we wish to rouse the torpid or oppressed functions of an adjoining or subjacent organ. When derivation is, however, our prin- cipal object, they cannot always be depended upon, particularly in irritable habits, and in the early stages of acute diseases. 1'hey ought never to bo employed in the stage of excitement in tever, unless this stage be irregular, imperfectly developed, or inefficient ; nor in inflammations, until acute action is subdued by dei)letions, eva- cuations, and other means, — when only artificial derivation can be expected to have any influence in diminishing the remaining disorder, and lessen- ing the risk of effusion. This caution is especially deserving of attention in respect of blisters, — the cantharides of which, particularly if improperly allowed to remain too long on a place, as they often are in diseases of excitement, being « often absorbed into the circulation, thereby in- creasing the general as well as local vascular action. These applications, also, ought not to be directed to the vicinity of parts suffering from vascular excitement. I have often seen mischief produced by blisters having been directed to the head and throat in acute diseases of the subjacent parts. 33. The means usually employed in order to derive the flux of blood from diseased parts are variously combined, and much discrimination is requisite both in the choice and in the combination of them, appropriattly to the state and nature of the diseased action at the time. The scope and > limits of this work preclude my entering upon ■ this important branch of the subject ; but it has I received attention when discussing the treatment I of those diseases in which the various means of I derivation are required ; and the appropriation of those means to the diffijrent states of vascular action is there attempted with some degree of precision. "BiiiLiOG. AND Refer. — Dumas, Nova Constitiitio Artis Revellendi et Derivandi per Venaesectionem, 4to. Tig. Vi^T. — Sciuiert, De RevuUione et Derivatione, 4to. Vit. \CtO\. — Bcilin, Do Revulsione Crueuta, 4to. Leip. 1704 — Fiklar, De Revulsione. Lugd. Bat. 1731. — Segner, De Derivatione per VeniESPCtionem. Goei. 1749 Bolten, Do Revulsione, Generatim. 4to. Hala;, 1750 Mrnxer, I)c Lege UevuLsionis Virium S) stematis Nervosi. Pragflp, 17S4 Gt'jvWiC, Derivationis et Revulsionis HIstor. et Proesid. 4to. Jenfe, 1787. — J. //. F. Atiienricth, Ob.'erv- ationes Veritatem Mcthodi Rtvulsoria; Spectantes, 8vo. Tul)ingo:, ls()2. — (Recommends the tart, antimonial ointment, tlic fir.st employment of which has been incor- rectly attriluted lo Dr. jKNNiiii. It was first recom- mended by the late Dr.MoNHo, in his Lectures on Morbid Anatomy. I attended these lectures, and employed it long before the publication of Dr. Jennkk's letter on the suliject. See cases adduced by me illustrative of its good cllucts, in Lond. Med. Repos. vol. xvii. p. 310.) — I'inrl ft Urichcteau, in Diet. Sciences Medicales, t. xlviii. p. 'AM. — Jennfr. Letter to C. It. Parry On the Inlluence of Artificial Eruptions in certain Diseases, &c. 4to. Lond. 1822. IV. Deficiency of Bi.ood. Syn. Antrmia (from the privative a, and a'i/xa, blood). Bloodlessness. Ancmie, I'V. JJer lllut- manf^el, Ger. Dyspepsia Anwmia (Young). Marasmus Auhainia (Good). Cj.assif. 3. Class, Diseases of the San- guineous Functions; 4. Order, Cachexies (Good). I. Class, V. OiiuKii (Anlhor). 34. Defin. a deficiency of blood in the whole BLOOD — Deficiency or — An«mia. 173 body, or in some important organ, not firoceedtng from natural or artificial hemorrhage, giving rise to a waxii, bloodless state of the countenance and surface, einaciaticn, feeble quick pulse, and great languor and debilitii. 35. Defect of blood, bloodlessness, or anfemia, ahhoiigli not of frequent occurrence, is yet occa- sionally met with, particularly in its less remark- able, or local forms. In connection with chloroiis it is ofiener observed. Cases of anjemia have been recorded by Keieelius, Swiienke, and others ; and the disease fully described by Becker, Albert, Jaxson, Hoffmann, De Haen, Isen- FLAMM, LiEUTAUD, Hallk, Andral, and several pathologists, and practical writers of the present day. 1 shall first ofler a few general observations on local anamia ; and afterwards describe more fully geneial ansniiu and its complications. The deficiency of blood, occasioned l)y natural or ar- tificial losses of it, is considered under a distinct head. 36. i. PATHOtoGY OF AnjEmia. — Ist, Local anizmia. Deficiency of blood in an organ or part is evidently the result of one or more of the following pre-existing lesions : — a. Of dimin- ished influence of that portion of the ganglial or organic class of nerves which supplies the blood- vessels of the organ ; h, Of defective vital ex- pansion of its capillaries, probably owing to the depressed state of the influence exerted on the vessels by the nerves supplying them ; c, Of mechanical impediments in the way of a sufficient supply of blood ; d. Of imperfect development, or diminished calibre of tlie arteries by which blood is conveyed to the organ; e, Of disease of the organ or part, or an imperfect exercise of its functions; and, f. Of unusual fiux of blood to other quarters, causing a proportionate diminution of it in others. It is evident that these states are merely local, and are capable of co-existing with other changes affecting the whole mass of the circulating fluid, as respects both its quantity and its quality ; and that various disorders of func- tion, accoiding to the particular state on which the anaimia depends, and the extent to which it may exist, will be the consequence. 37. I'lie organs most subject to this condition of their circulation are, according to M. Andral, the lungs, the brain, the liver, the substance of the heart, the stomach and alimentary canal, and some of the voluntary muscles. To thefe I would add, the spleen, the ovaria, and the gene- rative organs of the male. In many of the~e, as in other parts, atrophy is associated with the anaimia; and may lie considered, in the majority of cases, as the consequence of it. The symptoms of local anaemia are not always manifested during life ; but they frequently are, as I shall have occasion to point out, when considering the mor- bid conditions of those organs most subject to this change. Thus, in the completest of all the stvites of local anasmia, as when the obliteration of an artery cuts off all supply of blood to the or- gan, gangrene will result ; frequently vvheu anffi- inia is seated on the brain, a form of convulsion is the consequence, with other symptoms stated in the article on this subject (see Brain — Amnnia oj ) ; and when the ovaria, at the period of pu- berty is not supplied with the requisite quantity of blood, owing to deficient influence of the gan- glial nerves distributed to the organs of generation, chlorosis, sometimes with more or less of general anaemia, is the constant effect. 38. 2d. General anainia. — The blood circu- lating through the body may be most remaikably deficient, in respect both of its quantity, and of the relative proportion of red particles. In many •cases in which the absolute quantity of blood in the body is diminished, the globules are still more remarkably deficient, they being insufficient to give the blood its usual deep colour. General ancemia presents itself in practice, 1st, as a pri- mary disease ; 2d, as a consequence of pre-exist- ing lesions of some one of those organs which are concerned in conveying the nutritious fluids into the blood, or in the processes of sanguifaction ; 3d, associated with other diseases, resulting equally with it from some antecedent affection, the nature of which cannot, perhaps, be readily recognised. 39. A. The primary forms of ansmia, whea closed analysed, seem to proceed, 1st, from de- ficient nourishment ; 2d, from deficient vital power, — from a torpid or depressed state of the influence of the organic class of nerves on the digestive, assimilating, sanguifying, and circulat- ing organs which they supply. — a. The influence of deficient supply of nourishment in producing angemia may be readily imagined, and instances showing it are numerous ; I will merely allude to one : — iM. Caspar d, whose researches have tended much to advance the state of the pathology of" the fluids, has illustrated this part of the subject by observing the remarkable degree of anjemiu which existed in a large proportion of the inha- bitants of a district devastated by famine, who lived upon grass. A more or common and less ex- pected form of general anjemia is ihat which arises from the injudicious restriction of diet and regimen, during convalescence from acute dis- eases, particularly those which liave required large depletions. Several instances of this state of disease have come before me, and would, I am confident, have terminated in dropsical effusions (^ 44.) or in death, if a different system had not been adopted. 40. b. A torpid state of the organic class of nerves, is one of the most influential, if not the most frequent, antecedent affections to which we can impute this state of the circulating fluid. It is extremely probable that those instances of its occurrence from being shut out from the sun's influence, and the constant respiration of an un- wholesome air, arise from the continued privation of salutary stimuli to this important class of nerves, upon which the sanguifying processes depend. 41. 'J"he influence of the sun's rays in promot- ing all the vital actions, particularly those of or- ganic life, probably from modifying the electro- motive state of the frame, must be evident to all. The good efl'ecls of light and air are shown in the vegetable kingdom, the circulating fluids of which cannot be duly formed without exposure to both. The sun's rays diffuse a genial influence through the frames of the aged, and excite the organic and generative lunciions of the young. It has been observed that those peisons who are en- tirely excluded from tiie light of the sun, and breathe the close air of mines, are paricularly sub- ject to general anaemia. JNl. Chomel has given a very interesting account of the disease which 174 BLOOD — Deiicien'cy of — Anemia. affecteil the workmen employed in a coal mine at Auziiin. It commenceil vvitli colicky pains, me- teorismus, blackish green stools, dyspnoea, palpita- tions, great prostration of strength, followed, in ten or twelve days, by a yellowish or waxy and bloodless appearance of the countenance. The capillary vessels disappeared from the conjunc- tiva and mucous surface of the mouth ; and the pulsation of the arteries could scarcely be felt. The patients complained of palpitaiions, anxiety, oppression and suffocation on exertion, paroxysms of fever, profuse peispirations, oedema of the coun- tenance, and rapid emaciation. This state con- tinued for six months or a year ; and in some cases terminated fatally, with the reappearance of the invading symptoms. Four of these patients were sent to Paris for treatment, and were ordered light nutritious diet, bitter infusions, &c. One of them died; and on dissection, the arteries and veins were found almost void of blood, containing merely a little sanguineous serum ; and little or no blood floweil from the parts divided during the inspection. The appearances in this case led JMr. Halle to prescribe iron filings in the dose of a drachm daily, with tonics and opium; and, under this treatment, all the symptoms gradually vanish- ed, the capillary vessels reappearing on the surface. 42. -B. It is probable that general anseniia will not take place, unless consecutively of re- maikable torpor of the vital influence, or of some other morbid condition of one or more of the or- gans which contribute to the formation of blood. Where the digestive powers and the functions of the liver are weakened, anaemia to a slight degree is not infrequent. Its connection with chlorosis is merely that of an associated effect of pre-existing depression of the influence of the system of organic nerves. (See Chlorosis. ) The lungs have been considered by some authors as the organ which is chiefly concerned in the production of anamia, and consequently have been viewed by them as the seat of hajmatosis, or at least the place where t^iis process is completed. Without disputing that such is the case to a certain extent, I am dis- posed to view the liver as being equally, if not more, concerned in this function, — an opinion long since contended for in my Physiological Notes (see Appendix to M. Riciiirand's Elements of Physiologq ) ; and consequently as being in many cases very influential in the production of general anemia. It is probable, however, that other viscera or parts may also give rise to it. Thus it inay be admitted that totnl obstruction of the thoracic duct will occasion it; and I have repeatedly observed it in children affected with various chi'onic di-eascs of the viscera of oiganic life ; being here, as in most cases, one of the re- sults of imperfect digestion and sanguifiiclion, as well as of obstruction to the passage of chyle into the blood. One of the most remarkable cases of general anajniia was recorded by Dr. Combe. In it all the viscera were found nearly bloodless, excepting the spleen ; but not diseased in other respects, at least not to the extent of impeding their functions. The thoracic duct and absorbent system were not examined. 43. The siimiitoms of luui'mia have been neatly all alludeil to in the foregoing remarks. 1 may, however, enumerate them briefly at this place. 'J'hey consist of a i)ule, waxy, or blanched appear- ance of the countenance and integuments, in which the cutaneous veins are scarcely seen ; and those which appear are pale, apparently empty, do not hll quickly, or scarcely at all, upon pressure made upon them ; and, when emptied, fill very slowly. The conjunctiva has lost its red vessels ; the lips, tongue, and inside of the mouth are pale ; the pulse feeble, small, irregular, and readily made still quicker or fluttering upon mental emotion ; the patient is languid and very weak ; complains of flatulence, borborigmi, and an irregular state of the bowels, with want of appetite, and an occasional nausea ; a sense of sinking and syncope, particularly upon assuming the erect posture, followed by palpitations ; op- pressed, shoit, hurried, and sometimes gasping lespiration ; irregular convulsive or spasmodic movements ; tremors ; oedema of the ankles ; and in some cases the more severe symptoms described as following sinking after large depletions (§ 54.), In the more unfavourable cases the patient may be carried off by a fit of syncope upon assuming quickly the erect posture ; or by a convulsion ; or sink with the symptoms of exhaustion, or with those of effusion on the brain, or in the pleural or pericaidial cavities. It most commonly runs into one or more of the complications about to be noticed. 44. 3d, Complicated anccmia. — Deficiency of blood, as respects both its diminished quantity and its poor quality, or the defect of red globules, is often associated with visceral disease, of which it is generally the consequence ; but it also may give rise to various affections, both functional and organic. That aneemia should be complicated with certain chronic diseasLS of the liver, mesen- teric glands, and absorbent system, chlorosis, &c. may be expected ; but that it should give rise to diarrhoea, and to dropsic.d effusions in various parts, particularly in the shut cavities and cel- lular tissue, without any alteration of the solids, may not appear so obvious, although admitting of explanation. 1\1. Andral states, that he has ob- served an;umia in the bodies of persons who had died dropsical ; and in persons who had com- plained of diarrhoea, profuse perspirations; and very justly considers both the dropsical effusions into the shut cavities and into the cellular tissue, and the exhalation from the digestive mucous surface and skin, as perfectly independent of any local congestion or irritation, and to be analo- gous to the profuse diarrhoea and perspirations which occur in persons who are brought near to dissolution by long protracted disease. In all such cases, whether attended with effusion into shut cavities or cellular tissue, or with increased exhalation from mucous surface*, we may con- sider nearly the same pathological conditions to exist as their principal sources; viz. diminished tone of the exhaling orifices, with lessened vital cohesion of the tissues in which they open ; a poor and thin state of the blood, the crasis of which is much lowered ; and a more rapid circu- lation of the remaining fluid. 45. Anasmia, when existing even in a moderate degree, will often give rise to various functional disorders, which are, however, of no constant character, but differing with the temperament, hahilof body, &c. The chief of these are hysterical and epileptic convulsions, palpitations, leipothy- mia or syncope and palpitations alternately, ir- regular or anomalous convulsions and spasms, chorea, and various nervous tremors resembling chorea, dyspnoea, sickness or vomiting, cedemn, of the ankles, diarrhoea, headach, &c., with weak, small, quick pulse; pale, waxy, or doughy state of the countenance ; listlessness, flatulent state of BLOOD — Morbid Effects of its Loss. 175 aloes, the aloes and myrrh pill, the compound iron pill, &c. 49. When the anaemial state of the system is at- tended with hysterical, convulsive, and other ner- vous afTections, a combination of chalybeates and the abdomen, gastralgia, colic pains, very weak tonics, with antispasa odics, as the preparations of digestion, vermination, and irregularity of the ' ' fascal and urinal evacuations. It will aNo be followed by atrophy and softening of several of the internal viscera, and general emaciation. 46. In caperated it, when beginning to subside. The consequence is, that anotlier very large depletion is again pre- scribed for its removal ; and the patient, recollect- ing the relief it temporarily afforded him, readilv consents. Blood is taken to lull syncope — agaiia relief is felt — again reaction returns — and again the local symptoms are reproduced: and thus, large depletion, full syncope, reaction, and the supervention on the original malady of some or all of the phenomena described above as the conse- quence of excessive loss of blood, are brouoht before the practitioner, and he is astonished at the obstinacy, course, and termination of the disease ; which, under such circumstances, gene- rally ends in dropsical effusion in the cavity in N 178 BLOOD — Effects of large Loss of. which the affected organ is lodged ; or in con- vulsions, or in delirium running into coma; or in death eitlier from exhaustion or from one of the foregoing states ; or, more fortunately, in partial subsidence of the original malady, and protracted convalescence. Sucii are the consequences which but too often result — which I have seen on numerous occasions to result, when blood-letting has been looked upon as the only or chief means of cure — the " sheet anchor" of treatment, as it has too frequently been called and considered during the hist twenty years. 64. B. Of the mode by which excessive loss of blood in disease may be best avoided. — Method if conducting blood-letting. Frnm the above it will appear obvious, that if blood-letting were better managed, and directed so as to make an impres- sion on the local ailment, but in such a manner as to avoid being so readily followed by the reaction which reproduces the malady for which it was employed, great advantage in practice would result, and much less blood require to be removed even in the most acute cases, a. In order to accomplish this, I have long been in tlie habit — and have inculcated it in my lectures on the practice of medicine, from 1824, — of directing the following mode of practice when large blood- lettings were required in the treatment of visceral inflammation: — The patient should be either in bed, or on a sofa, and in the sitting or semi- recumbent pQ:-ture, supported by several pillows. The blood it to be abstracted in a full-sized stream, and the quantity should have some re- lation to the intensity and seat of the disease, and the habit of body and age of the patient, but cliieHy to its effects ; it should flow until a marked impression is made upon the pulse, and the countenance begins to change. Further deple- tion must not now be allowed ; but the finger should be placed on the orifice of the vein, the pillows removed from behind the patient, the recumbent posture assumed, and the arm secured. Thus a large quantity of blood may be abstracted, when it is required, without producing full syn- cope, which sliould always be avoided ; and when a large loss of this fluid is either unnecessary, or might be hurtful, the speedy effect produced upon the pulse and countenance by the abstrac- tion of a small quantity will indicate the impro- piiety of carrying the practice further. In this manner I have often removed about forty ounces of blood, where large depletion was urgently required, befoie any effect was produced upon the pulse, but always carefully guarding against syncope ; and by the subsequent means used to prevent reaction, no further depletion has been retiuired. 65. b. In order, however, to obtain this object, a treatment varying with the nature of the disease is required. Repeated doses of the potassio-tartrate of antimony, eitlier given in small quantities at very short intervals, or in large doses, combined with opium ; full doses of calomel, antimony, and opium ; of camphor, nitrate of ])Otash, and col- chicum ; or of ipecacuanha, nitre, and opium, &c., particularly the first of these, exhibited so as to excite nausea, but guarding against retching, us ijcing liable to induce reaction ; and the in- dividual antiphlogistic remedies, appropriately directed, and combined according to the cir- cumstances of the case, arc the chief means which I have employed to prevent the return of increased action after blood-letting conducted as now stated. The particular measures which may follow blood-letting are fully explained in the articles on Injiammation of the different Organs; but. I may now mention, that when opium is given with the view of preventing the recurrence of reaction, it ought to be exhibited in a large dose at once (two or three grains), either with a full dose of James's powder, or any other anti- monial, or with two or three of ipecacuanha, con- joined with some one of the other substances above mentioned. 66. It should be kept in recollection, however, that reaction after large depletions is chiefly apt to occur in idiopathic inflammations, and other diseases of excitement, in which the constitutional or vital powers are neither remarkably lowered nor depraved ; and when the circulating fluid is not vitiated by the retention of those substances in it which require to be eliminated, nor by the absorption of matters which are foreign to its na- ture, and injure its purity. Reaction is very opt to follow large losses of blood in acute rheuma- tism ; in inflammations of the membranes of the brain ; and, indeed, of all serous or fibro-serous membranes; and by its recurrence to re-animate the local action ; so that a person may be blooded to that state which has been described as the extreme result of large loss of blood (§ 54.), and yet, trusting to this practice alone, the local disease has either not yielded, or has passed into one or other of the unfavourable terminations it is liable to assume, particularly dropsical effu- sion. In the course of practice 1 have frequently seen persons who had experienced attacks either of pleuritis, pneumonia, peritonitis, enteritis, or of some other inflammation, and who had recovered with great difficulty, and after a long convales- ~ cence. Upon inquiry, I found that they had always been blooded largely, and to syncope, — some of them four, five, or even six times, but scarcely ever less frecjuently than thrice ; and yet, upon a subsequent attack of inflammation in its most acute form, in the same or some other organ, a single depletion, practised as I have recom- mended above, and followed by the means most likely to prevent the return of reaction afterwards, to subdue the local action, to solicit the flow of blood to other parts, and to equalise its distribution over the body, has been sufficient; or, at most, a single repetition of the venesection has been all that has been required. 67. c. When the chest is dull on percussion, the heart congested, the liver large, and the veins distended ; or when the circulation is full and strong, the capillaries injected, the lips and mu- cous surface red, the muscles firm and large, or the respiration oppressed, blood-letting is generally reciuired, and is well borne. It is also necessary even when the pulse is languid, the external venous circulation diflicull, and the surfaces pale, if these symj)toms be conjoined with those in- dicating internal congestion. (See Congestion.) On the other hand, persons with an open, soft, full pulse, florid countenance, lax muscles, &c., although they may bear moderate loss of blood, yet suffer more from large depletions than those of a pale, dry, thin, but muscular and rigid habit of body. 68, Under no circumstances ought a patient to BLOOD — Effects of large Loss of — Treatment. 179 be blooded whilst his head is nearly on the same level with the trunk ; and the utmost care should be taken in having recourse to venesection in cases of dilatation of the cavities of the heart, par- ticularly those of a passive nature. It is seldom necessary in such cases : and if circumstances should arise to require it, the blooil should be taken, in the position I have inculcated (j 64.), from a small orifice and to a small extent. In the majority of cases, the state of the venous circulation, if duly examined, furnishes some in- formation as to the quantity of blood in the sys- tem, and therefore sometimes becomes a valuable guide to blood letting in some doubtful cases. 69. \Vhen the superficial veins are distended, of a deep or daik colour, and the blood flows (juickly, and the veins fill rapidly on applying friction and pressure — indicating that their usual state of fulness does not depend upon interrupted circulation about the right side of the heart, or in any part of their course — we may infer that tiie system is sufficiently supplied with blood. But if the veins are small or pale, the body not being fat ; if they swell slowly upon a liga- ture being applied above them ; or are readily emptied by friction, and very slowly refilled, we must infer the existence of a feeble state of the circulation, and a deficient as well as poor state of the blood: and the inference will be further verified if we find this slate associated with a pale sickly appearance of the countenance and integu- ments ; a small, feeble, and quick pulse; and paleness of the lips, conjunctiva, tongue, and gums. (See § 43.) 70. C. Of loss of blood in relation to diseases oj depressed vital power, S;c. — There is a numerous class, or rather classes, of diseases, in which blood-letting, either in small quantity, or carried too far, is especially injurious. All those in which the circulating fluid is poorer and thinner, or less pure, than in health, particularly chronic and malignant diseases presenting more or less of the symptoms of anaemia, and disorders occur- ring in ill-fed and emaciated subjects; those in which the vital endowment of the blood-vessels, or their tonic contractibility, is partly lost, or ma- nifestly reduced, as various forms of fever, puer- peral and other diseases in which hurtful matters are apt to pass or to be absorbed into, or not to be eliminated from, the blood ; all those in which the vital cohesion of the soft solids is diminished, and the fibrine of the blood is incapable of coher- ing in the inanner necessary to form a tolerably firm coagulum, are injured by large bleedings, or even by depletion to any extent. In the first of these, it is obvious that blood cannot be spared : in the second, although its loss might not be felt in other respects, the vessels cannot accommodate themselves to the state of their contents when any considerable quantity is abstracted ; and in the last, as well as in them all, the vital manifest- ations of the circulating system, and of the solids generally, of which cohesion is one, is so far in- jured, that the primary morbid condition from which they all proceed is increased by the oper- ation ; and, moreover, a greater disposition lo the absorption of morbid matters is imparted to the ab- sorbing function, when such matters are within the sphere of its operation, by the vascular depletion. 7L 1 may, in conclusion, remark, that all dis- eases essentially spasmodic, and coipsisting of irregular action of muscular parts, or of altered sensibility of nerves, or of morbid exaltation of their peculiar sensibilities, even when affectino- internal organs or the heart itself, and when no conclusive evidence of inflammation exists, will either be aggravated by loss of blood — in some cases even to a moderate extent — or be leadily followed by the efTtcts which have been described as consequent upon an excessive evacuation of this fluid. But I may further add, that, in many cases where the above reasons for abstaining from large or repleted depletions, or from venesection, strictly apply, local depletions, umler due restric- tions, may be resorted to with advantage. 72. iii. Treatment of the Effects of large Loss of Biood. — This will necessarily vary with the particular effect produced, and the state of the patient, and of the disease in which excessive loss of blood occurred. The more immediate effects of the loss are the Jirst to claim attention ; the other morbid conditions which result from it more remotely, will be considered in succession. 73. A. Treatment of the primarii effects of loss of bhod. — The more immediate effects (§ 53.) generally require the recumbent posture, free ven- tilation, and airy apartments ; in the extreme cases, stimulants, sprinkling the face with volatile and fragrant fluids, and even the transfusion of blood. In the worst cases, and particularly when the loss of blood has occurred from the rectum or vagina, the head and shoulders should be placed lower than the pelvis ; and care should be taken to ascertain whether or no internal hEemorrhage is going on, as far as this m.ay be accom- plished (see Uterine Hemoi-rhage). In all cases of hajmorrhage, the involuntary discharge of urine and evacuation of the bowels ought to be considered most dangerous symptoms — even more so than the occurrence of convulsions — and the most decided measures should be instantly adopted. Where we have reason to suppose that transfusion will be required, it s'hould not be de- layed too long, as the risk from delay is infinitely gieater than that from the operation performed by an expert surgeon, and with a proper appara- tus. In cases where convulsions or delirium oc- cur, or when these pass into coma or lethargy, it will be necessary lo exhibit, internally, stimuli, as £ether, spirits of ammonia, and camphor, with a little tincture of hyoscyamus ; to sprinkle a;lher, or laven- der water, or eau de Cologne, over the face and head ; to apply a blister to the nape of the neck, or on the epigastrium ; to support the animal heat in the trunk of the body and extremities; and to administer the lightest and blandest nourishment. Recovery fioin large loss of blood is usually quick, when the functions of digestion and assimilation have not been greatly injured by it; but when they remain imperfect, or remark- ably disordered for some time afterwards, we may dre.id the formation of visceral disease, and should direct change of air, voyaging, and travelling, with the use of tonic and deobstruent mineral waters, and appropriate internal medicines. 74. B. Treatment of reaction nj'ter large loss of blood. — Careful reference ought to be had by the inexperienced practitioner to the symptoms indicating this state (§ 58.), so as to distinguish between them and the general excitement conse- quent upon internal inflammation. 'I'his state will require means modified according to the fea- N 2 li BLOOD — ITS Alterations in Disease. tures it assumes. But generally tlie morbid re- fiction existing- in the head, and rendering all the senses reniarkahly acute, and the system suscep- tible of impressions, as well as the distressing palpitations of the heart, require the utmost quiet, and small doses of hyoscyamus, or extract of hops, Aviththe preparationsof ammonia, and mild nourish- ment. Where the throbbings or pains in the head are urgent, the surface of the head warm, or delirium exists, cold spirituous lotions, applied over the head, and full doses of hyoscyamus with ammonia, or moderate doses of the acetate or the hydrochlorate of morphia, with weak brandy and water, and warmth applied to the lower extremities, will be required. 75. C. Treatment of consecutive exhaustion, or sinking. — Here stimulants are required in larger doses ; and should be administered by the mouth, in the form of enema, and externally. It is pos- sible that transfusion would also be of service in this state of the system. If coma be present in this stage, large do«es of camphor, aether, and ammonia are required, with the tepid effusion on the head ; blisters, or mustard cataplasms to the nape of the neck, or epigastrium, or to the feet. In more chronic cases of exhaustion or sinking, gentle nourishment, in small quantities and often ; warm tonics, combined with gentle aperients, in order to remove morbid secretions, and relieve flatulence ; nutritious enemata, or injections of gruel or mutton broth ; and small quantities of weak brandy and water ; are the best means that can be adopted. 76. -D. Treatment of certain effects of depletion in relation to disease. — a. Large loss of blood during diseases of excitement (§ 63.) requires a treatment but little modified from that already re- commended. \\'hen it has occurred during in- flammation, a certain degree of irritative action may stdl continue, notwithstanding the excessive loss of blood, occasioning dropsical effusion into shut cavities ; and, when the disease is seated in the lungs, effusions in the bronchi or air-cells, which the powers of life are insufficient to throw off, or to expel. In such cases exteinal deriv- atives, and a combination of gentle stimuli, with diuretics, anodynes, and diaphoretics, in order to equalise the circulation, and to lower the irri- tative action in the part affected, often prove of service. When the primary disease is seated in the head, the tepid or cold effusion, cold lotions to the head ; external revulsants applied to the nape of the neck, or to the lower extremities ; anodynes, camphor, with hyoscyamus, or with acetate of morphine ; and the promotion of the alvine and cutaneous secretions and excretions, constitute the principal measures, together with those already enumerated (§§ 74, 75.). 77. li. Loss of blood occurring during diseases of vital depression {§ 70.) requires the most ener- getic means. The objects very generally are to restore, as far as may be, the vital endowment — the tonic contractility, of the vascular system, and to enable it to act with sufficient energy on the fluid circulating through it; to increase the vital cohesion of the soft solids; and to excite the secreting organs to remove the hurtful ingredients that may have passed into or accumulated in, the remaining fluiil, and which tend to vitiate the whole of the structures, and to sink still lower the already depressed powers of life. U'liese ends can be attained only by exhibiting, in frequent doses, the various tonics and stimuli ; particularly those which tend to arrest or to counteract the morbid changes going on in the frame, and to rally the powers of life. Of this kind are the prepar- ations of bark, or quinine, combined with camphor, the asthers, particularly hydrochloric aether, the preparations of serpentaria, spirits of turpentine, wine, opium, and various remedies of the same de- scription, combined according to circumstances, and generally exhibited in small or moderate doses frequently repeated. External stimuli, rubefa- cient cataplasms and liniments, stimulating and tonic enemata, injections of mulled port wine, with opium and camphor, are often of great benefit. When the secretions require to be carried off, rhubarb and other tonic aperients may be em- ployed. When the disease is attended with coma, blisters or sinapisms to the nape of the neck, epi- gastrium, or the feet, may be employed ; and either of the following formula, in the Appendix, ex]uh\t.e(l (see F. 423. 496. 845. 906.). If low muttering delirium be present, the same treatment as is recom- mended for this state in typhoid fevers is required. BiBLioG. AND Pepeb Montn'n, Des Effets des Diffe- rentes Especes d'Kvacuatioiis Sanguines, &c. Lyons, 18111 — Seeds, in Lond. Medical Gazette, vol. v. p. 433.— M. Hull, On tlie Effects of Loss of Blood, in Trans, of Med. and Cliiiurg. Society, vol. xiii. p. 121.; and Re- searcties relative to the Morbid and Curative EfTects of Loss of Blood. 8vo. Lond. 1830.— T/ie Author, in Lon- don Medical Repository, vol. xx. p. \5 — Piorry, Mfe- moires sur la Circulation, &c. Paris, 1831. VI. Alterations of the Blood in Disease. 78. It will be necessary to the accurate estima- tion of the causes and results of the various changes of the blood in disease, briefly to consider the relation in which the different functions of the body stand to the blood. These functions are of the following kinds: '^\z. d^ sun guif action, nutri- tion, depuration, and secretion; one organ per- forming, or contributing to two, or even three, of these offices. We know that digestion, absorption, arterial circulation, and respiration, are necessary to the formation of the blood, and to the nourish- ment of the tissues, we also know that absorption, nutrition, secretion, and venous circulation, are concerned in rendering the blood impure, by con- veying hurtful ingredients into if, or allowing others to accumulate in it, or by destroying the relative proportion of its constituents ; and that various organs, particularly tho^e of secretion and respiration, are actively concerned in eliminating such matters as become injurious by excess, or pass into the circulation from the various sources of impurity which suiround it. Hence it must be evident, that changes in the solids, and particu- larly in those viscera which are concerned in the supply and waste of the blood, as well as in its depuration, must be followed by changes in the state of this fluid ; unless when one or two organs merely have their functions interrupted, and others performing analogous actions to lliese dis- orders assume a vicarious office. It must be evident, therefore, from this, that the doctrines of solidi^m and humorism are, to a certain extent, both coirect , that, although disorder may origin- ate in either, it cannot be long limited to one or the other, but must extend more or less to both, according to the nature of the causes, and the organs or parts where their impression is made. We observe in the course of practice, that certain morbid 0|^ poisonous ingcsta make but little im. BLOOD — ITS Alterations in Disease. 181 pression on the system, until they are absorbed into tlie circulation, and by their presence there dis- order various organs or parts ; whilst other sub- stances make an immediate impression on the nervous system, and, through its medium, impede the I'unclions of secretion and depuration, and thus the blood itself is rendered impure, and tlie source whence all the frame is more or less viti- ated. Various feveus furnish most satisfactory illustrations of this position. 79. Having already considered changes in the quantity of the blood, alterations in its (jualilies are next to be viewed. The facts winch have been observed, connected wiih this subject, are few and deficient in precision ; and the majority of tiiose who have directed their attention to it, have merely described chemical conditions and combinations presented by this fluid after it had been for some time removed from the body, and had lost whatever vital endowment it may have received from the vessels and tissues in which it circulated, or had undergone important changes incidental to this state ; instead of describing at tlie same lime such vital manifestations as it may have presented upon its removal, and the relation of its chemical states to the pathological conditions of the body. 80. As we have seen that organisation com- mences in the chyle, and that this fluid is the chief source whence the blood itself is formed, the importance of studying the alterations of the blood, in connection with the stale of this fluid, is evi- dent; but the difficulty of the investigation gene- rally precludes many from engaging in it. At the same time it must be admitted, that very important changes may take place, not only in the blood, but also in the fluids which supply it, and are secreted from it, without being made manifest to our senses upon the most careful examination. 1 shall now, Jint, furnish proofs of important changes in the constituents and state of the blood in various diseases; and next consider the causes of such changes, and the results to which ihey usually lead. 81. i. Proofs of Change. — A. In the propor- tion of the chief constituents of the blood, a. The quantity ot alhumen varies considerably in disease. It is not sensibly diminished by large or repeated blood-letting, unless the quantity ot blood, in rela- tion to the bulk of the body, be much diminished. In many inflammatory diseases, and in a large proportion of ca~es of active dropsy, the relative proportion of albumen is often very much in- creased. This has been shown by Blackall, Trail, Gendrin, Bright, and several authois. I have always found it remarkably increased in most of the exanthemata, particularly before the eruption has come out. Gendrin shows that, in inflammatory diseases, the serum of the blood often contains twice as much albumen as in the healthy state. When this is the case, the blood feels remarkably viscid to the touch. In diseases of debility, and when the blood is apparently de- ficient in quantity, and poor in quality, the al- bumen is generally very much diminished, being sometimes less than half its usual proportion. M. Gendrin and M. Andral think that it may also be altered in its nature as well as quantity ; and I believe, from appearances which I have observed in the advanced stages of several dis- eases, thdt their opinion is correct. In these cases. the albumen seems either precipitated to the bot- tom of the serum, or suspended in it like a cloud, giving it a turbid opacity. 82. b. The proportion of the watery part of the blood has been shown to vary in health; but it varies still more in disease, and even in different stages of the same malady. This change is not, however, limited to one, or even a few, of the constituents of this fluid ; but sometimes is ex- tended to the most of them. Blood-letting, in acute diseases, diminishes the proportion of coa- gulum ; and, if diluents be supplied, increases greatly the proportion of serum, without lessening the quantity ot albumen, unless the depletion be carried very far. In several chronic diseases of debility, in the stages of excitement and exhaus- tion in fevers, and in the last period or decline of the acute exanthemata, the proportion of serum is very considerable, ov\ing to the interruption of the secreting functions; but in acute inflamma- tions, and the early stages of some of the exan- themata, the blood is of a deep colour, and rich in cruor, with an increased proportion of albumen and of fibriiie. In the advanced stages of disease, attended with fluid evacuations, the watery part of the blood is diminished. This is remarkably the case in the pestilential cholera, dysentery, and in some forms of diopsy. 83. c. The colouring matter of the blood evi- dently undergoes some alteration during febrile and malignant diseases. It has recently been supposed that such change has an intimate connec- tion with the proportion of the saline constituents of this fluid, — a diminution of these rendering the colouring matter dark coloured, whilst an increase of them has an opposite effect ; and certainly va- rious facts seem to confirm the opinion. But this alteration is one merely in relation to colour, which is unquestionably rendered much more deep or black in the last stages of the diseases now alluded to. But besides alteration of colour, there are others which may be termed dyna/nic, inasmuch as they relate to the vital endowment of the globules, or, if not of the globules, of the fluid generally. In the diseases referred to, and after the operation of virulent poisons, the con- dition of the colouring matter is remarkably changed : it separates readily, and almost before dissolution, from the central corpuscles which it surrounds; and, passing through the exhalant vessels of mucous surfaces, with the serous or v\aiery part of the blood, gives lise to the sanious cruor, and the dissolved blood, which we some- times observe issuing from these parts shortly before or after death ; and probably to the black vomit in yellow fever. In cases of infection by animal poisons or morbid secretions, this separation of the colouring matter, and solution in the serum, take place very early, indeed almost immediately after death; and it is evidently owing to this change of the blood, that the interior surface of the blood-vessels becomes so deeply coloured, without any other appearance of inflammation. Indeed, the evidence adduced by I\l. Trousseau fully proves this to be the case. (Archives Gen. de Mid. t. xiv. p. 321.) 'I his further accounts for the coloration of the interior of arteries in fatal cases of adynamic or malignant fevers, — an appearance first paniculaily noticed by J. P. Frank, and subsequently by many others, and by some incorrectly ascribed to inflammation. N 3 182 BLOOD — ITS Alterations in Disease. 84. d. The jihrine varies greatly in its quan- tity, and as to the states in which it presents itself in the blood removed from the body. Its con- dition will be somewhat modified by the manner in which blood-letting is performed ; but generally it soon separates from the serum, and, with ihe red particles, forms the crassamenlum or clot, which will vary in its appearances with the de- gree of nervous energy exerted by the organic nerves on the vascular system, and the quantity of fibrine, o. First, the fibrine and red globules may be in much greater proportion relatively to the water and albumen, and sldl thecrassamentum formed therefrom will be very different, according to the state of vascular action and nervous energy at the time wiien tiie blood was abstracted. If the vascular action be increased, or in a healtiiy state, and the vital energy unexhausted, the fibrine will contract into a firm and large coagulum. If the fibrine retain its relatively large proportion, and vascular action be exhausted, it will contract so imperfectly or loosely, as to enclose a large portion of the serum, and to leave but little of this fluid surrounding it. In the former case the coagulum possesses much density : in the latter, extremely little ; indeed, sometimes not sufficient to separate it sensibly from the serum. In such cases the blood is rich, although otherwise very different in appearance, owing to the stale of action and vital power. 85. ;3. In the second place, the fibrine may be in small quantity, and yet present a state of firm attraction, fbrniing a small coagulum in the midst of a larger proportion of serum than is usual in health. Or the proportion being still small, the cohesion of the fibrine may be so weak as to form a tolerably large coagulum ; whilst, in other cases, it will scarcely separate from the serum, owing either to its diminution, or the weak attraction of its corpuscles. I have met with it in several cases so nearly wanting, and so delicient in at- traction in other instances, as not to form any coagulum ; the red particles having been, as it were, precipitated to the bottom of the vessel in a dark or blackish sediment, without any cohesion in the form of clot. From this it will be inferred, that the quantity of fibrine cannot be reckoned from the apparent size of the coagulum merely, but from the size in connection with densitv or degree of cohesion. When the bloud is deficient in red globules, and fil)rine, it has usually re- ceived the appellation of poor blood ; the degree of cohesion existing between the particles of fibrine in it, as well as in rich blood, being the general index of the degree of nervous power. But there are apparent exceptions to the indications it pre- sents. Thus, in acute rheumatism, alter repeated depletions, injudiciously resorted to, — injudi- ciously, because a frecjuently injurious, and seldom a beneficial practice — and during the reaction con- sequent upon repeated blood-letting, the fibrine, although much reduced in quantity, will often still continue to adhere firmly, or even to form, in some cases, a buffy coat, and yet the powers of life are reduced very far beyond what the state of the fibiine would seem to indicate. In these cases, the cohesion of the coagulum, and the formation of the buir, are, as well as in many other circumstances of disease, princqially the result of vascular reaction, occasioned by morl)i(l excitement of the nervous influence; and as long as these states exist, this condition of the coagulum will occur, although depletion be carried to the utmost extent. 86. y. Whilst the blood is still circulating in the body, particularly in the last stages of various chronic diseases, the repulsion existing between its existing globules may be so far destroyed as to admit of the fibrinous corpuscles adhering to each other, in some part of the vascular system, or even in one of the cavities of the heart. The fibrinous concretions thus formed are attributable, 1st, 'J'o retarded or obstructed circulation of the blood in the part. Van Swieten and H aller state that flocculent and fibrinous coagula have formed in the blood of the pulmonary artery during syn- cope and the cold stage of agues ; and they, as well as numerous later observers, have found these productions after exposure to extreme cold, and when death has been preceded by a very languid, obstructed, and irregular state of the circulation, 2d, To effusions of a small portion of coagulable lymph from the inside of a part of the vascular lining, during a state of inflammatory irritation; which lymph may have become the nucleus around which the fibrinous particles may have collected, or the bond of cohesion between them in the first in- stance : and, 3d, Particularly as respects those fibri- nous concretions, in the centres of which purulent or tubercular matter has been found, as in the in- stances adduced by MiM. Legroux, RIaiuchai,, and subsequently by others, to the absorption of these matters, or to their passage into the blood from the internal coats of the vessels on which they may have been formed ; and from becoming nuclei around which the fibrine has concreted. In some instances, in which these fibrinous masses have been found, little or no connection with the surrounding vessels can be traced. M. Andral supposes that these concretions are pos- sessed of a separate vitality, and that the matter detected in their centres is a product of vessels previously formed in them. This opinion, how- ever, cannot be supported, inasmuch as the mat- ters formed in their centres have no relation to, nor have they been found often surrounded by, blood-vessels ; and, when vessels have been de- tected, the firm attachment of the concretions to the inner surface of the vessels attests the manner of their formation to be identical with that of other productions of a similar kind. 87. S. But the attraction between the particles of fibrine, which is usually observed when the blood is removed from the sphere of vital endow- ment, in which it participates, instead of being exerted, as now stated, within S(^iiie part of the vascuhir system, n^ay be entirely lost, or be very irregular or imperfect. In such cases, the blood either remains altogether fluid ; or its fibiine, and some part of its albumen, form grumous paiticles, or minute fragments, which are either suspended in the serum or mechanically mixed with it, forming a sanious cruor in the vessels. This latter state is observed sometimes locally, and often generally,' immediately alter death; as in the veins of the spleen, liver, of the extremities, &:c. A thick, dark, and treacle-like slate of the venous blood, and a vcnousappearance of the arterial blood, are not inrrtciuent during life ; particularly in pes- tilential cholera, in asphyxia, hydrophobia, &c. 88. f. 'i'Uc l>it£'ii coat observed to form the upper part and surface of the coagulum, most frequent- ly, in cases of inflammation, consists of fibrine, BLOOD — ITS ALTEUAxroN's in Disease. 183 according to Deyeux and Parmentier ; of fibrine, and especially concrete albumen, in the opinion of Fourcuoy, Vauquelin, and Tiie- NAiiD ; of fibrine and gelatin, according to Or- FiLA ; of fibrine, containing serum between its fibres, and albumen, or very albuminous serum, according to Dowler and Gendrin. Berze- Lius considers that it may contain all the elements of the coagulum. It manifestly is produced by the concretion of the fibrine, which, parting from the colouring matter, forms a whitish yellow, or slightly greenish layer, varying in thickness fiom a Ime to one or two inches; and giving rise to the cupped appearance of the clot, by the firmness of attraction between its particles. The form- ation of the buff may be somewhat favoured by the size of the orifice from which the blood has been drawn, the rapidity with which it lias fiowed, and the form of the vessel in which it has been received ; but the buff itself entirely depends upon the state of the fibrine, which, in conjunction with a portion of serum and much albumen, not only chiefly constitutes it, but modifies it in the man- ner already noticed, according to the state of vital influence and vascular action. (See § 84. and art. Inflammation.) 89. e. Respecting changes in the saline con- stituents of the blood, we are provided with but little information, and that by no means of a pre- cise character. So much difl^erence has existed amongst chemists respecting the actual saline in- gredients of heahiiy blood, and their state of com- bination in this fluid, that a standard has not been furnished for comparative observation. Ac- coniing to Dr. Stevens, they are very sensibly diminished in the blood of patients aflfected by the fevers of warm chmates ; and Dr. O'Shaugh- NESSY has shown that the blood of those suflTering from pestilential cholera contains much less saline constituents than in health. 90. f. The electrical condition of the blood may also be changed by disease. Bellingeri states the electricity of venous blood to be equivalent to that of antimony ; that it is an imperfect conductor of this agent ; and that its electricity is diminished in inflammatory diseases. According to Rossi, the blood presents, in severe fevers, modifications of its electrical states. That electricity, when act- ing energetically on the frame, afl^ects the blood (probably through the medium of the nerves sup- plying its vessels) in a most intense manner, is shown by the dissolution and decomposition of this fluid after death from this agent. 'The evident effect of light upon the blood, in rendering it both more abundant and rich, may be attributed to the electrical states of the solar rays. 91. g. The temperature of the blood has been observed to vary, during the course of disease, from 8G° to 104°. It has been observed as low as the former grade in pestilential ciiolera, and the cold stage of ague ; and as high as the latter in the stage of excitement in fevers, and visceral inflam- mations. Its temperature is evidently owing to the degree of nervous power in connection with vascular action. 92. B. Changes in the intimate nature of the hlood, for which mere difference in the proportion of its constituent'! cannot account ; and which are refer- rible to the state of vital power. — Important chaiiges of the blood, which are evidently not referrible merely to alteration of the healthy proportion of its constituents, although sucli alteration may be con- sidered as often co-existing with those other in- appreciable modifications upon which its morbid eflfects chiefly depend, occur in the course of various diseases ; and, when once induced, occasion not only violent or fatal effects as respects the individual subjects of tliera, but also similar changes in healthy persons inoculated with this diseased blood. Dr. Home communicated measles by means of blood taken from persons afl'ected by them. DuHAMEL records a case of a butcher, who, having put in his mouth the knife with which an over-driven ox had been slaughtered, had his tongue and throat swollen a few hours afterwards, and an eruption of blackish pustules over his body. He died in four days. Another person, having wounded himself in the hand with a bone of the same ox, was seized with inflammation of the arm, followed by mortification and death. Two females experienced also gangrenous inflamma- tion from a few drops of the blood of the same animal having fallen upon the hand of one, and on the cheek of the other. Inoculation with, or even the simple contact of, the blood of diseased animals, may produce in men the malignant pustule. Of this numerous proofs have been furnished. MM. Dupuy and Leuret introduced into the cellular tissue and veins of a sound horse, blood taken from a horse affected with malignant carbuncle (pustule maligne), and thus produced the disease. The serious effects also observed to follow wounds in dissection, either of recently dead bodies, or those in which decomposition has commenced ; the changes which take place in the blood, either primarily or secondarily, in various maladies ; the septic influence of certain animal se- cretions and poisons on the tissues to which they are applied, on the blood, and on the frame generally ; are among the most important phenomena of dis- ease. I sliall, therefore, proceed to a more minute examination of this department of pathology than it has recently received. Thai these changes are of a most important nature ; that they may arise from various causes, or from spontaneous alter- ations taking place in the blood while circu- lating in the vessels of the animal, even whilst those changes are so slight as to escape detection by our senses ; and that the blood, when thus changed, will be the cause of disease presenting a malignant character, when applied to or in- serted into the tissues of healthy animals, are facts which the preceding, as well as other evi- dence about to be adduced, fully demonstrate. The chief of these changes, to which I attach the utmost importance, having observed them to exist more or less in a large proportion of cases where blood has been removed, or escaped from a vessel, in malignant or adynamic diseases, or in the last stages of vei'y acute and dangerous maladies, are the following : — 93. a. The blood has generally a somewhat salt taste in health, evidently depemling chiefly upon the quantity of chloride of sodium contained in it. In various maladies, particularly those which are malignant, and in tlie advanced st:iges of fevers, the taste is not so remaikable, particularly when the blood assumes a darker hue than na- tural, b. The peculiar odour of this fluid upon emission from a vein is also very remarkably changed in these maladies. Haller has ad- duced numerous instances of this in his great N 4 184 BLOOD— ITS BuFFY Coat. work ; and various authors — and amongst these, Van SwiETEN, Hoffmann, Sen WENCKE.Huxii AM, Linings, &c. — have noticed a remarkable I'oetor of" the blood in adynamic fevers and pestilential ma- ladies. I liave observed a peculiar odour of the blood in cases of malignant puerperal fever. We are informed by Louis de Castro, that the blood of two plague patients infected the air of their apartment with a fcctid odour; and Zacutus mentions, that three persons were struck dead by the odour exhaled from the blood drawn from the vein of a person infected with plague. Muhalt also states that a cadaverous fcetor emanates from the blood of persons afTected with this malady ; and Baglivi mentions that a nearly similar phe- nomenon was observed in the blood of patients in the advanced stages of a very fatal epidemic fever. IIali.er prognosticated a fatal issue, chiefly from this symptom, in a case to which he refers. Zurinus, Alprunner, and Vater, allude to cases where physicians were dangerously in- fected by the foetor of the blood, upon its abstrac- tion from the veins of persons in malignant and contagious diseases. Boisseau states, that he has been very disagreeably affected by the odour of the blood just abstracted from the veins of persons attacked by severe disease of the chest or abdomen. Pringle relates, that an individual ■was seized with dysentery, after inhaling the odour from the blood of a dysenteric patient, kept for a long time. The blood taken from a vein in the arm of a woman in a malignant fever, was, according to Mouton, so offensive, that the surgeon and assistants fainted in consequence. It may be therefore inferred that both the odour and the taste of the human blood may be very sen- sibly changed in the advanced progress of various adynamic, infectious, and malignant maladies. 94. c. Softness or firmness of the coagulum has been already noticed, in connection with the condition of the fibrine ; and stated to be often independent of the quantity of this constituent, and to be chiefly owing to the degree of nervous influence and vascular action. In the class of dis- eases now alluded to, the coagulum is not only remarkably soft, but, from the want of adhesion, and fiom the solubility of the colouring matter in the serum, is sometimes readily converted into a reddish fluid by slight agitation with it. In other cases no coagulum forms, the fibrine being sus- pended in small albuminous-like fragments in the serum, and the colouring matter precipitated to the bottom of the vessel. In several instances, these constituents are not separated from the serum, but seem combined with it ; the whole mass remaining more or less fluid, and presenting a reddish, reddish black, or blackish colour, from the time of its emission till it furnishes evidence of decomposition. I have met, in other cases, with the blood changed into two parts : the upper and serous part consisting of a remarkably soft gelatinous ma^s, sometimes almo-t fluid, resem- bling very weak or uncoagulated calves- foot jelly, and forming from two thirds to four fifths of ilie whole; the colouring matter being spread over the bottom of the vessel, and presenting a dirty, black, and muddy appearance. I have also oljserved, and very lately, in two cases to which I had bc('n called by neighbouring practitioners, the colouring part of the blood, with a portion of the fibrine and albumen, deposited on the bottom of the vessel, of a colour between a deep brown and dirty dark grey, the serum being very abun- dant and turbid. 95. d. -Appearances analogous to the above are also observed whilst the blood is in the veins of the dead body. In many cases, it is either fluid or semifluid, treacly, and of a dark colour. In others it is apparently decomposed and gru- mous ; and in some, either consisting of perfectly fluid blood, or resembling water coloured with a reddish brown matter. In some cases, where the blood has been partially coagulated or sepa- rated into a grumous state, the more fluid parts, generally in the form of a bloody or sanious serum, have percolated the tissues, and escaped through the relaxed exhaling pores and extremi- ties, and passed into the shut cavities ; but more fiequently flowed out on the mucous surfaces, leaving the moie consistent parts of the blood in the vessels in larger proportion than in heahh. In all these cases, the blood, whether that drawn from the veins, or found in them after death, seems not so deficient of fibrine, as that its state is changed owing to exhaustion or annihilation of vitality, by virtue of the possession of which (derived from the influence of the organic nerves on the blood-vessels and internal viscera) its fibrinous corpuscles are aggregated into a coagulum when removed from the veins. 96. ii. Further Proofs of Change in the Blood, and its relation to particular kinds of disease. — A. The existence of a huff on blood drawn from a vein has always been regarded by practitioners as a sign, not only of disease, but also of inflammation. Gendrin (following the path of his predecessors) asserts that the blood is in a verii iiijiummatory state, when it coagulates quickly ; is covered by a thick, concave, dense, elastic, buflF, of a yellowish white ; and separates into a truncated, ovoid, dense, elastic clot, floating in a serum, which bears a proportion to it of one and a half or two to one; is slimy, colourless, slightly turbid at the bottom of the vessel, and without any trace of colouring matter. The clot yi more rarely is of the shajjC of a truncated cone ; is very dense at its surface, pretty soft at its base ; does not float; and is more voluminous than the serum, which is of a pale yellow : in this case the blood is more than very inflammatory. 97. He observes that the blood is injlammatory, when the buft' is thick, diaphanous, of a dull white, and covers a rather dense c}lindrical clot, beneath which is the serum, yellowish, and equal at most twice the volume of the clot, a slight colouring deposit being found at the bottom of the vessel. If there be any bufl^ when the blood is Uib-inflammatiiry, the clot does not float, but is suspended in the middle of the li(|uid, or is jirecipitated, and is less dense than in inflamma- tory blood ; the serum is slightly tinted with red at the bottom of the vessel, where a layer of colouring matter may be seen. But usually there is no buff; the clot is dense, ovoid, floating, and presenting a red stratum on its surface ; the serum is viscous, limpid, somewhat turbid at the bottom of the vessel, where no colouring matter can be observed. The blood in this slate coagu- lates quickly, and yields serum of at least twice the volume of the clot. When the proportion of serum is less than twice that of the clot, and the hitter is soft, cylindrical, voluminous, although BLOOD — Changes of its Vital Relations. 185 floating, the blood is scarcely sub-hijUimmatory ; it is so in a slight degree when the clot is dense, ovoid, and pendant in the middle of the vessel ; when, of those two last mentioned coagula, the first occupies the middle, and the second the bot- tom of the vessel, the blood is more injluinmatory. 98. This description is tolerably accurate, par- ticularly as respects injiammcitions of serous mem- branes, pneumonia, and other visceral injiamma- tions, wlien the circulation is free and the pulse not oppressed. But every one must have ob- served, that there may be very acute inflammation, and yet the blood is not bufTed, particularly in children ; and on the other hand, that tliis ap- pearance often exists to a greater or less extent in plelhoric persons, in pregnant and puerperal females, in those who resort frequently to blood- Jetting, and in rlieuniatism even in its least in- flammatory forms. i\I. Gendrin also ens as respects tlie rapidity with which inflamed blood coagulates. When the powers of life are unim- paired, and the circulation quick, and particu- larly during acute and general vascular reaction and vital or nervous excitement, coagulation is either longer in taking place, or, if it commences soon, it is much later m being completed than in other cases ; but much will depend upon the stream of blood. If this be full, quick, and large, and the temperature of the apartment high, coagulation is delayed, and the buff more readily appears. If the stream be small, slow, and the temperature low, coagulation is rapid, and no bufi'is formed. 99. In some cases of intense iujlammalion, no buff appears, the blood coagulates slowly, the clot is less dense, and less serum is formed than in health; but the coagulum is very distinct from the serum, into which it does not at all dissolve. This, although another condition of the blood in a state yf inflammation, is observed also in cases where the inflammation is not excessive, as every praciitioner must have had numerous opportunities of ascertaining. Two superimposed layers of buf^'are sometimes seen — the one soft or friable, the inferior more dense, more compact, — but not (as is asserted) only when suppuration has taken place in an inflamed organ ; still less must we receive as a sign of suppuration the dusky white or opacity of this buft', an^l the pre- sence of a mucous stratum at the bottom of the serum. In short, it does not always happen that the bufl^ siiovvs itself on the blood in chronic phlegmasia, until the subject has become en- feebled, and the nutrition deteriorated. A repe- tition of bleeding, and a tendency to syncope, causes either a diminution, or the entire disap- pearance, of the bufl^. According to Plenciz, when the blood is not bufl^ed in inflammations, the coagulum is always more firm than natural, — an observation which is tolerably correct in respect of the state of vital power, but not as regards the presence of inflammation. It should not be overlooked, that in many cases of very acute inflammation, particularly in its early stage, the nervous power may be so oppressed, and gene- ral va-cular action consequently so imperfectly developed, that the coagulum will neither be firm nor exhibit any buff on the first and second blood-lettings; and yet, when this oppression has been removed, a firm and sizy coagulum will be formed by the blood subsequently drawn. This is particularly the case when the respiratory func- tion has been oppressed at the commencement of the attack. 100. Out of four and twenty cases of peripneu- monia terminating fatally, Louis found the blood of nineteen of these patients covered by a buflT, which was firm and thick at each bleeding in fourteen cases ; soft, and sometimes infiltrated, in the other?. It was cupped only in two fifths of the whole number of patients. The buff was absent in oidy six cases out of fifty-seven, which recovered. It was very thick, and cupped, in twenty-three of them. The blood was covered by only a slight buff in three cases out of five of hydrocepluilus, softening of the brain, or apoplexy ; and in another instance of softening of the brain, the blood remained semi-liquid, without clot or bufF. 101. In four cases of scarlatina, small pox, and measles, which terminated favouiably, the blood was covered by a thin and not very consistent buff; in one case of scarlatina it was firm and thick; of the same character in five cases out of seven of erysipelas of the face, and in four cases of a/igina, while in a fifth it was soft ; in nine tenths of rheumatic patients it was equally firm and thick ; in two subjects afi'ected by zona it was not present. It was somewhat thick in four cases of erythema, where the circulation was con- siderably accelerated ; and thin, in four out of fifteen cases of pulmonary catarrh. According to Gendrin, the buff never appears on the blood of variolous patients, until after the eruptive fever begins ; it is more strongly marked when the in- flammation is more intense, and lasts even after desiccation has taken place. When bufl!' appears at the very first, Baglivi is of opinion that the eruption will he considerable. 102. B. Other states of the blood in various diseases. — i\I. Boisseau states, that he has seen the venous blood of a lively red — now and then of a clear rosy red — and spouting in a transparent thread, in patients afflicted with inflammation of the lungs, and sometimes in tliose with inflamed joints. Among tliose with peripneumonia, but who were otherwise of sound constitution, he has noticed it covered by a greenish buff; yet the greater part of these patients recovered after re- peated bleedings. In a very fine young girl, who had enjoyed good health, but was attacked by pain in the side in consequence of a chill, the blood was of a dirty grey, apiiroaching to violet, and like lees of wine : after this bleeding she suf- fered no more, although her skin continued yellovv for some months. M. Boisseau has also seen blood like turbid wine in several cases of pulmonary inflammation, which were nevertheless cured, the patient sufl^ering little more in consequence of the unusual appearance in the blood. 103. In fact, the hicmorrhagic blood, as also that taken from the veins of subjects attacked by in- flammation, is not always consistent and buffed ; it is sometimes found dissolved, thin, and serous. The latter appearance is, indeed, less common than the former; but sufficiently so to teach us not to attach too much importance to the aspect of the blood in inflammations, and aUo not to forget that, whatever may be its condition, phleg- masia will develope itself when the causes from which it springs are sufficiently powerful. 104. A whitish appearance of the venous blood has been long observed, arising from the presence of white flakes or streaks. This has been ascribed 186 BLOOD — ITS MoBBiD Relations. to various causes ; but wilh greatest truth to the existence in it of a large portion of un assimilated chyle. The separation of the blood into a soft or natural coagulum, and a milky serum, is much more common. This, as well as the foregoing state of the blood, has been imputed to various causes. Emwert considered that it was owing to a substance analogous to buff. Some have ascribed it to milk ; others to albumen ; a few pathologists view it as owing to a matter analogous to fibrine ; and several, as proceeding from the admixture of liquid fat. IIaller imputed it to liquid chyle. Of these opinions, tiie two last are the most accurate. There can be no doubt that both the mijkiness of tiie serum, and tiie whitish streaks observed in venous blood, are owing in a great measure to unasiy all the neighbouring brandies with which it communicated of the yel- lowish black fluid they contained. The extrava- sated blood was of the same nature. In a scorbutic patient, opened by order of Cahtieu, the cavities of the iieart were stated to have been entirely filled with corrupted blood. 106. In four cases of scurvy, Rouite lias found the right cavities of the heart filled with black and coagulated blood ; and a greenish jellow polypus- like matter filling the kit cavities of this organ, the aorta, and the pulmonary artery and vein. Amongst the scorbutic subjects opened at Paris in 1699, by PouPART, it was found that in those who had died suddenly, the auricles of the heart were dilated by coagulated bload, the muscles loaded with black and corrupt blood, and the cellular sub-cutaneous tissue infiltrated by extra- vasated, black, coagulated, and congealerl blood, in some cases, and by red blood in others. 107. BicHAT found in a dead body, instead of venous blood, a greenish sanies, which filled all the divisions of the splenic vein, the trunk of the vena porta, and all its hepatic branches ; so that when cutting the liver, he distinguished by the flowing of this sanies all the branches of the vena porta from those of the hepatic vein, which con- tained blood in a natural state ; this body was remarkable for such an excessive obesity, that BiciiAT never remembered seeing any thing equal to it. Unfortunately he does not give us the sym- ptoms of the disease of which this person died. 108. According to Covter, Gendi;in, and many others, a black pulverised-like substance deposits itself at the bottom of the vessel containing blood taken from persons affected with typhoid, malignant and gangrenous diseases; the clot being often either completely dissolved, or not formed at all. I have seen these appearances, and various modifications of them alluded to above (§ 94.), not only in these diseases, but also in htrmatemesis, dysentery, severe infectious erysi- pelas, phlebitis, the dangerous forms of puerperal diseases, puerperal mania, and in purpura hmmor- rhagica. 109. Remarkable fluidity of the blood is always observed after death from severe blows on the epigastrium, and from lightning. J. Hunter states, thit he has also found it fluid after death from a violent fit of passion. Mciigagm observed it in a similar slate after death from hunger ; and jM. Audouard relates that it was uncommonly fluid in a man who died from coup de soleil, voiding blood from the mouth and nostrils. In two cases of hydrophobia I found the blood black ; so fluid in the heart and veins, that it flowed out abundantly from the vessels of the head and neck, presenting an infinite number of oily points or particles on its surface ; and when removed from the vessel, it did not afterwards coagulate. The same appearances were observed in a large pro- portion of the numerous cases descriijed by IM. 'I'rolliet, and other authors on this disease. M. Troi.i.iet states, that in several of his cases, a considerable quantity of gas escaped from the heart and aorta. 110. iii. The Causes of Changes in the HEALTHY STATE OF THE BLOOD. TllB CaUSCS whicll occasion morbid changes in tlie state of the blood, are either such as are confined in their operations to individuals, or such as influence whole classes, or the communily generally. They may ihus be sporadic, endemic, or epidemic. Jn respect to their mode of operation, they may be arranged, 1st, Into such as vitiate the fluids from which the blood is formed ; 2d, Into those which impede the functions of secretion and depuration ; 3d, '1 hose putrid or septic matters which contaminate the li'-sues and fluids to which they are api)Iied, and act chiefly by absorption ; 4lh, Those which act upon the vascular system, cither directly or indirectly, tluough the nerves which supply it ; and, BLOOD — ITS MoRDiD Relations. 187 5ih, The passage into the blood of morbid matters formed in the same body that is the se;it of disease. 111. A. Of vitiation of the blond by the fluids ichich form it. — I'lie fluids which supply tlie waste of tlie blood are not infrequently vitiated, and thereby change the state of the circulating mass. Tlie chief sources of this vitiation are hurtful or unwholesome ingesta. Many articles, even of food, will be hurtful when too long con- tinued. The injurious effects of salt provisions on the blood, whtn exclusively employed, and par- ticularly if depressing causes cooperate with this diet, are evident, and are fully illustrated in the article on Scuiivv. The influence of diseased rye, in first changing the condition of the blood, and inducing a state of chronic arteritis, termin- ating in gangrene of the extremities, is also well known ; and the effects of diseased or putrid flesh upon the system have been often noticed, al- though not always correctly traced to the quarters where the principal changes are produced. M. Bertin states that a number of negroes in Gua- daloupe, having eaten the flesh of some animals dead of an epizooty, were seized with fever, and violent ileus, of which the greater number died : and numerous cases are on record, where persons shut up in besieged towns, having partaken of putrid animal matter, or of the flesh of animals that have died, have been seized with malignant states of disease ; and the blood has been found fluid, dissolved, blackish, grumous, &c. upon ex- amination after death. In these, and numerous similar instances which might be adduced, al- though the state of the blood has been alluded to in general terms, the information has been de- ficient in precision, and has been furnished inci- dentally, the attention of the observer having been directed to other quarters. 112. ]M. Magendie adduces, in his Journal, the instance of a man, who, after a long use of vegetables in which the oxalates abounded, un- derwent the operation of lithotomy, and a large oxalate of lime calculus was removed from him. AVe know that a large proportion of both our mi- neral and vegetable medicines operate by being absorbed into the circulation (see art. Absorption, &c.) ; and there is every reason to suppose that various morbid or foreign matters may pass with the chyle into the blood, and modify its condi- tion. The excessive or long-coutiuued use of alkalies, or of alkaline salts with excess of base, has the eft'ect of diminishing the cohesion and the viscosity of the blood, and of preventing it from coagulating after it has been removed from the vessels ; and while these substances thus, as it were, dissolve, or attenuate this fluid, they also diminish the vital cohesion and ionic contractility of the extreme vessels, and of the tissues, and cre- ate a disposition to extravasation of blood in the parenchyma of the organs, and to exudation of it from the mucous surfaces. On the other hand, the acids — particularly the mineral acids — tur- pentine, the acetate of lead, and all the salts, — especially those with excess of acid — have the effect of increasing the healthy crasis of the blood, and of producing an opposite change to that now stated. When used in excess, however, or injected into the veins, tliey have been con- clusively shown to give rise to fibrinous concre- tions in the vessels, to coagulate the albumen of the blood, to darken its colour, and thus to render it grumous, and unfitted for circulation through the minute capillary vessels, particularly those of the lungs. The influence of salted provisions, long and exclusively employed, in which the soda is generally in excess, in attenuating the blood, in preventing its coagulation when removed from the vessels, and in relaxing the soft solids ; and the effect of acids in removing these morbid stales, are well illustrated by the nature, progress, treatment, and prophylaxis of scurvy. 113. That the nature of the food materially affects the state of the blood is further shown by the general character of the diseases most pre- valent in various communities, living chiefly on certain kinds of aliment. The inhabitants of se- veral places in the north of Europe, who live principally on fish, a large proportion of which is usually kept until it has become remarkably stale, or even ammoniacal, from incipient decomposition, who seldom partake of flesh meat unless in a simi- lar state of change, and who dry or smoke both these kinds of food, instead of salting them, are generally subject to diseases which arise from, or are connected with, an impure state, or weak cohesion, of the circulating fluid. It should not, however, be overlooked, that the more complete changes which respiration efl'ects on the blood in cold climates, and the active exercise of the func- tions of depuration, under the influence of the vital energies, serve to counteract the morbid al- terations which this cause would induce. Yet still the prevalence of disorder in these eliminating organs, particularly the mucous and cutaneous surfaces, which preserve the purity of the blood ; and the marked disposition, which all febrile dis- eases evince, in persons thus circumstanced, to- wards vitiation of the circulating fluid ; and the consequently low or adynamic symptoms whicfi characterise their progress and termination ; are sufficient indications of a change in the consti- tution of this fluid. It is worthy of notice, that communities which live in the manner now al- luded to, generally employ remarkably acid be- verages, usually consisting of the fermented whey of butter-milk, and a fermented farinaceous in- fusion. I believe that noihing could be used as common drink better calculated than these to coun- teract the ill effects of their diet on the blood. Be- sides the acid existing in these beverages, they also contain much carbonic acid gas, which likewise con- tributes to their wholesome influence on the blood. 114. The effects of living upon much fresh animal food, in increasing the quantity of fibrine, in rendering the blood rich and abundant, and in disposing to inflammatory diseases, are too well known in all their relations to require illustration. But when we consider the influence of various kinds of aliments in modifying the state of the blood, we ought never to overlook that, as its or- ganisation and vi'al manifestations, commence with the chyle, ami depend upon the vital con- dition of the vessels and tissues, and upon the perfect discharge of all the functions which con- tribute to its formation and purification, the extent of mischief produced by unwholesome food will be commensurate with the deficiency of vital en- ergy, and the imperfection of the various or- ganic functions. A person of a robust consti- tution, breathing a pure air, and assisting the eliminating functions by regular exercise, will sufl'er much less, than the debilitated, the indolent 188 BLOOD — ITS Morbid Relations. and lliose placed in unhealthy localities, from either unwholesome food, or from the accidental ingestion of injurious substances. A person thus circum- stanced will also suffer less from the habitual indulgence in too much animal food ; but more commonly such indulgence will give rise to a superabundant secretion of uric acid, and favour gravel. In such persons, also, there is reason to suppose that urea, or uric acid, may exist in the blood, and be deposited from it in various parts of the body, particularly tlie small joints. The uric acid, which becomes thus abundant, is a highly azotised animal principle, obviously formed from llie excessive use of food which abounds in azote ; and when its appropriate emunctory, the kidneys, fails of carrying it out of the blood, it and its com- binations are secreted in other parts. 115. B. Imperfect performance of the functions of depuration , a chief cause of morbid states of the blood. — The evident influence of this class of causes renders it a matter of surprise that it has been so long overlooked in our estimation of the causation of disease. When the facts which have been brought to light by the successful in- vestigation of the animal functions are duly weigh- ed, and estimated in connection with the sources of impurity to which the circulating fluid is ex- posed, the importance of assigning a due rank to this kind of morbid agency will become ma- nifest. When we consider the important changes that take place in the lungs — the quantity of car- bonaceous fluids constantly discharged through this organ, and of watery vapour loaded wiili various inipuiities continually exhaled from its surface, and passing out with the expired air; or the abundant perspiration, sensible as well as in- sensible, constantly issuing from the cutaneous surface, and holding dissolved in it substances which require to be eliminated from the circula- tion, owing either to tiieir excess or their foreign and hurtful nature ; or the varying state of the urinary secretion, the quantity eliminated and the changes it manifests from variations of tem- perature, atmospheric moisture, and especially from the abundance and nature of tiie ingesta ; or the discharges vvhicii the female experiences during the greater part of her average duration of life ; or the secretions formed by tiie liver, the internal suiface of the bowels, the pancreas, &c. out of elements wiiich, if not combined into these new forms, and destined to ulterior purposes, would become poisonous to the frame, by vitiating the blood ; it must be evident that an interruption to any one of these several functions, if not com- pensated for by the vicarious increase or modifi- cation of some others, must be followed by alter- ations of the cjuantity, of the (juality, of the relative proportion of the constituents, and even of the vitality of this fluid. IIG. a. Under tlie due dominance of the vital energy of tiie system — and particularly of that influence exerted by the organic nerves on the great secreting viscera, and on the whole vascular system — no sooner does any substance, which may have been cariied into the circulation, or accu- mulated in it, become injurious, than it is elimi- nated by the appropriate action of some organ, vihich often evinces a kind or degree of disorder, either in its actions, or in the state of its secretions, according to the natuic of the substance which iflTtcts it. Thus, we perceive various substances and kinds of food, even in health, affect the ac- tions and secretions of tlie kidneys, of the skin, and of the bowels ; certain of tlieir constituents becoming sensible in the halitus of the expired air, in the perspiration, or in the urine, where they could be transported through the channel of the circulation only. The foe,tor, &c. of the breath, and of the perspiration, &c. consequent upon interruptions of the abdominal secretions, also indicates that impurities have accumulated in the circulation, and that they are being elimi- nated by means of the lungs and skin. So long as the vital energy is sufficient for the due per- formance and iiarmony of the functions, injurious matters are seldom allowed to accumulate in the blood to the extent of vitiating its constitution, without being discharged from it by means of one or more organs ; but as soon as tliis energy lan- guishes, or is depressed by external agents and in- fluences, and the blood is thereby either imperfectly formed, or insufficiently animalised and depurated, some one of its ultimate elements or proximate con- stituents becomes excessive, and the chief cause of disorder, which terminates either in the removal of the morbid accumulation, or in a train of morbid actions and organic lesions. These very important pathological facts are so fully proved by the his- toiy of the most prevalent and serious diseases, and by their terminations and results, and are so perfectly unopposed by accidental or occasional exceptions, that proofs or illustrations of their value and uniformity are superfluous. 1 17, Thus it will appear that, although changes in the secretions and in the blood itself are most influential in the production, perpetuation, and aggravation of disease ; yet such changes are prevented, controlled, and even in some cases promoted, by the state of the nervous energy and vital actions of the frame; to which influence they are always more or less subject, unless when the causes of the disorder are so intense, in re- lation to its state, as entirely to annihilate it, as is occasionally remarked in respect of the most pestilential diseases, and of the operation of some virulent poisons. Thus, also, will it appear, not only that hurtful matters carried into the circu- lation, and ultimate elements, or proximate con- stituents allowed to accumulate in it, owing to the imperfect performance of some eliminating func- tion, will be removed from it, when the vital in- fluence is sufficient for the task ; but that both kinds of injurious agents will, according to their natures, become productive of a vitiated state of the blood, of the secretions formed from it, and even of the various tissues themselves, when the state of vital manifestation, particularly as dis- played in the organic nerves, is insufficient to remove them from the frame, or to control their combiniitions,or to direct them to salutary changes. 118. Before leaving this iinportant subject — important in as far as it involves the fundamental doctrines of disease, and points to rational indi- cations of cure — 1 may briefly illustrate it by a reference to two or three facts, which are of every day occurrence. It has been long known tiiat af- fections impeding the functions of the lungs are fjcquently attended with an increased secretion of bile. This I have shown to depend upon the liver being excited to increased action bj' the car- bonaceous and other elements accumulated in tiie blood, owing to their elimination by the lungs BLOOD — ITS RIonniD Relations. 189 being interrupted ; and thus we readily recognise the cause of the frequent complication of biliary disorder with puhuonary disease, particularly in some hot countries. In cases also, where, owing to asphyxia, or to disease, as pestilential cholera, &e., the requisile changes by respiration are not effected in the blood, if recovery take place, the diseased states of the secretions of the liver and bowels indicate that the favourable result has been chiefiy owing to the increased performance, under tlie influence of life, of the functions of these organs. When death occurs from asphyxia, and particularly if it be occasioned by the vapour of charcoal, the black, fluid, or dissolved state of the blood, the presence of yellowish globules like oil, sometimes observed on its surface, and noticed by M. Rayer, sutHciently indicate the changes produced in ihis fluid, and the influence these changes exeit on the chief functions; and if re- covery is effected, the evacuations evince that the principal secreting organs have been the means of removing the morbid matters from the blood. A strict inquiry, also, into the changes which pre- cede a favourable termination of the latter stages of malignant diseases, manifestly detects the in- fluence of the secreting and eliminating organs in bringing about this result, and chiefly by their ope- ration, under the influence of life, upon the blood. 119. 6. That high ranges of temperalure occa- sion very important changes in the state of the blood, had been remarked by several of the an- cients, and by some of the best writers of the eighteenth century ; but the chief mode of its operation was first pointed out in a thesis written by me in 1815. I there showed that increased atmospheric warmth, particularly when accom- panied with moisture and miasmal exhalations, greatly diminish the changes effected during re- spiration on the blood in the lungs ; and that the carbonaceous, and other elements and impurities, are imperfectly discharged from the blood through this channel. I further showed, both in that production, and in my physiological notes, that these materials are partly combined to form bile, thus occasioning an increased as well as vitiated secretion of this fluid, and partly excreted by the mucous surface of the intestinal canal, and by the skin ; and that, if the functions of these organs, —the liver, skin, and intestinal mucous surface, — which thus compensate the diininished actions in the lungs, be at all iinpeded under such circum- stances, the elements, which they should have eliminated from t!ie blood, necessarily accumulate in it, and influence the functions of the nerves ramitied on the blood-vessels, and of the principal secreting organs and surface^, ultimately vitiatmg the blood and all the soft solids of the body, when the vital energies become depressed or exhausted, and the train of morbid phenomena experiences no change tending to health. 120. Thus, we perceive that, during high ranges cf temperature, particularly when the air is loaded with miasmata, and the liver is inactive, the ele- ments of the bile will accumulate in the blood, sometimes even to the extent of giving the coun- tenance a darker or more dusky tint than natural, and the blood will be changed, 1st, by the super- abundance of the materials whence bile is se- creted ; and, 2d, by the passage of this fluid, or of certain of its constituents, into the blood, after its secretion has taken place. In the foregoing man- ner (§ 119.), I explained the prevalence of biliary disorders, particularly bilious cholera, diarrhoea, dysentery, increased secretions of bile ; and, in warm climates and seasons, and when vegetable and animal miasms are superadded to this in- fluence, the occurrence of fevers of various kinds — remittent or continued, simple or complicated, biliary or malignant, inflammatory or dysenteric, endemic or epidemic, sporadic or pestilential — according to the ciicumstances of individuals, the kind of locality, the nature, combination, and source of the miasm, and the state of the atmo- sphere. This doctrine, now many years since contended for, later experience, and the concur- rent opinions of more recent observers, have fully confirmed. (See Fever.) 121. c. Several states of disease, which occur in the puerperal slate, may be referred to the ar- rest of the secretions or discharges incidental to it. The secretions from the internal surface of the uterus, and which partly consist of the bloody serum poured into the uterine cavity from the open mouths of the vessels which communicated with the placenta, are not infrequently arrested or impeded. In such casts, the blood does not undergo that salutary depuration which this eva- cuation occasions; and, consequently, either expe- riences further disorder, or it creates a disposition in the system to the invasion of other causes of disease. Besides, the fibrinous and albuminous parts of the blood, which are generally in excess during pregnancy, not having been discharged by this route, determine the occurrence of inflamma- tion of the uterus, peritoneum, &c. upon the co- operation of exciting causes. Or, if such causes have protluced these diseases, the obstruction or interruption of the secretions and discharges, which is generally thereby occasioned, aggravates the mischief, and the pnst mortem appearances often furnish more or less evidence of the suppression having been concerned in modifying the results ; the matters poured out froin the diseased parts frequently resembling, or containing constituents of, the secretion which was suppressed. How are we to account for this? We find it demonstrated, that the materials of both bile and urine, owing to obstruction of these secretions, may be mixed with the blood, and give rise to certain well known symptoms. We may therefore extend the same principle to suppression of the puerperal secretions; and infer, that the matters which con- stitute thein, having accumulated in, or not been eliminated from, the blood, are discharged along with those effusions of albuminous serum which frequently follow the di-eases of this state, even although they may not actually be the causes of these diseases. 122. Graeffe of Berlin (llev. Med. Jan. 1827) states, that a female, in a favourable state, and suckling her child, experienced a fright on the eighth day after delivery, which occasioned a complete suppression of her milk. Febrile ex- citement followed, and effusion took place in the peritoneal cavity and cellular tissue. I'pon tapping a few weeks afterwards, a bucket of fluid, resembling whey, and exhaling an acidulous odour, was drawn oflT. Upon being boiled with dilute sulphuric acid, it furnished a substance re- sembling caseum. When tapped six weeks after- wards, the fluid was of a greenish yellow, and without the least trace of caseum. 190 BLOOD — ITS Pathology ix Fevers. 123. That changes in the composition or state of the blooiJ are also followed by alterations of the natural secretions, is fully shown by both physiological and pathological facts. It is not, therefore, unreasonable to suppose, that modifi- cations or changes of morbid secretions will be occasioned by a similar cause. Indeed, alter- ations of the latter are quite as likely to be the consequence of pathological conditions of the blood, as changes of the former. 124. d In cases, where the functions of the skin, or of the kidneys, are interrupted, not only are the watery parts of the blood frequently in- creased, but also various irritating matters accu- mulate in it, unless eliminated by other organs. These excite more or less disturbance of the whole vascular system ; and if the cause continues, or is assisted by concurrent causes, the blood itself becomes very evidently changed, in respect both of the state of its cruor and of its serum. The effects of obstruction of the bile on the blood, and mediately on the tissues, are sufficiently apparent to the sight; and the actual presence of this fluid in the circulation, or, at least, the peculiar matters which characterise it, has been shown by several modern chemists, and completely demonstrated by the recent researches of RIM. Proust, Orfila, Gmelin, and Le Canu. But it is unnecessary to prosecute the subject further, as I consider the grand pathological inference to be fully established — that the interruption or obstruction of anii im- portant secreting or eliminating function, if not compensated by the increased or modified action of some other organs, vitiates the blood more or less ; and, if such vitiation he not soon removed, btf the restoration of the function primarily affected, or by the increased exercise of an analogous function, that still more important changes are produced in the blood, and ultimately in the soft solids, if the energies of life are insufficient to expel the cause of disturbance, to oppose the progress of change, and to excite actions of a salutary tendency. 125. e. Illustrations. — The importance of this conclusion will become still more manifest, if we illustrate it by reference to the pathology of fever, and observe the train of morbid phenomena produced by its causes. The.se, although modified even still more infinitely than the combination of causes in which they originate, present the fol- lowing almost unvarying characters and mode of procession : — A person exposed to the miasmata generated from vegetable or animal matter in a state of decay, or from persons affected with fever, inhales such miasmata into the lungs, where they produce a morbid impression on the nerves of organic life, followed l)y depression of the vital influence : the functions of digestion and secre- tion languish, and, owing to the imperfect perform- ance of secretion and assimilalion, the necessary changes are not fully eflPected in the blood ; and thus irritating or otherwise injurious matters accu- mulate in it. These phenomena generally proceed gradually, until, owing to the continued and augmented depression of the vital |)owers through- out the frame, and the increasing change in the state of the blood, marked disorder is occasioned. The vascular system becomes excited by the quantity and the ([uality of its contents; and, when the viial energies are not too far depressed for its production, the excitement becomes general. The accelerated circulation tends still more to disorder the state of the blood ; but it also has the efl'ect, in the majority of cases, of exciting the organic functions, of restoring the secretions which were impeded or interrupted, and thereby of re- moving the morbid state of the circulating fluid; after which the return to health is rapid. When, however, salutary reaction of the vascular system is not brought about, owing to the morbid depres- sion of the vital energy, and to changes which had taken place in the blood ; or, if reaction occur, but, owing to the state of this fluid, and of the nervous influence to which it is subject, it is irregular, imperfect, or excessive ; the vitiation of the blood proceeds; the secretions are also vitiated; the solids aflTected ; one or more vital organs suffer in an especial manner ; the energies of life are ex- hausted ; and various organic lesions are induced, having reference to the previous state of the system, the kind of change produced in the bloot. of Foreign Med. vol. ii. 1820, p. 446.) A similar state of the blood has been noticed by Arfjula, Bally, Palloni, and others, in the epidemic yellow fever of Spain ; and more recently by Dr. Stevens, who has described the appearances of the blood in tropical fevers with greater minuteness than his predecessors, has referred to most im- portant changes of the saline constituents of this fluid, and has fully confirmed some very detailed observations adduced by myself several years previously (Appendix to M. Richerand's P/ii/- siotogy, p. 640. et seq.), cotnprising the general results obtained from noting the appearance of the blood in a number of febrile and malignant dis- eases. Dr. Stevens states (Paper read to the College of Physicians in May 1830), that the blood, in these fevers, loses its property of coagu- lating, because more fluid, and thin or watery, of a much darker colour, and has its fibrine and saline ingredients exhausted, — changes which I have ascertained to obtain in a greater or less degree in the fevers of this country, particularly in their latter stages, and have described in my lectures since 1825. (See Fever.) 129. Besides other proofs of the diseased state of the blood in fevers, I may adduce the follow- ing : — In those who were victims to malignant fevers, Chirac found the blood in the ventricles of the heart, and the vena cava, more or less clotted ; and all the ramifications of the vena porta were filled with grumous blood. In those who died of typhus, at Brest, in 1757, the blood was found grumous, unnatural, black, and decomposed, par- ticularly in the liver. Soulier observed blackish blood coagulated in the vessels ; and extremely foetid black blood in the stomach, of those who fell victims to tlie plague at INTarseilles. Larrey found the blood black and liquid in those who died of the plague in Egypt. After intense fevers, Andral has found the blood contained in the heart, and in the larger arterial and venous ves- sels, remarkable for its great liquidity, and its black and deep colour : in some subjects it pre- sented a clear rosy tint, and was like water coloured red ; some small fibrous grains were then dispersed over the internal surface of the vessels. In one individual, the liquid "contained in the larger vessels was no longer really blood, but a matter the colour of wine lees, sanious in some parts, nearly resembling the ill-elaborated fluid contained in unhealthy abscesses. 130. M. BouiLLAuu found, in two or three cases, the blood clear and rosy, after putrid fevers ; but it nearly always appeared blacker and more liquid than in its normal state : this alteration varied, from the degree in which the clot was simply flabby, to that in which the blood formed only a blackened and liquid mass, without any trace of clot. This blood, being put into a basin, was brilliant, shining, and full of n)icacious specks; in some cases it has been found mixed with puru- lent matter, or pure pus ; at other times it was so altered and disorganised that it resembled a pu- trid mass, BouiLLAUD justly adds, that in such instances it is not rare to meet with a quantity of gas, more or less considerable, in the circulating canal ; and also that, although it be diflicult to describe these changes, they should nevertheless be taken into consideration, if we wish to explain satisfactorily the phenomena attendant on putrid fever. 131. The malignant febrile diseases which very frequently attack horses and cattle are always attended with a remarkable alteration of the blood, even early in their progress. -These diseases are less frequently met with in this country, than in marshy and warm climates. In some of the most pestilential of these climates, horses cannot be reared ; and when brought thither, they generally experience a febrile attack, with adynamic or malignant symptoms, and speedily die. This is constantly the case in some parts of Africa, where the vegetoanimal miasms from the soil are abundant and concentrated. I had an opportu- nity of observing the exainination of a horse brought from the interior to an unhealthy situ- ation on the coast, where it died, as all others had done, a few weeks afterwards. It was not much emaciated ; but the blood was black, decomposed, fluid, and sanious ; and the liver, spleen, lungs, heart, and, indeed, all theinternal viscera, softened, ecchymosed, and lacerable with the utmost ease. 132. C. Conlainination of the blood by putrid or septic matters applied to the tis'iues. — These substances were not inappropriately said, by the older writers, to occasion a putrid ferment in the part to which they were applied. The ferment may be disputed, but that they produce change of the blood is undeniable. If we examine the subject closely, we can arrive«at this conclusion only,— that the substance applied changes the part to a state somewhat similar, as respects sensible properties, to itself ; and that this contamination soon extends, either by its immediate eflects upon 192 fBLOOD — Contamination of — Poisoning of. the organic nerves supplying the vessels, and con- secutively on the blood, or by the direct introduc- tion of the contaminating matter into the divided vessels, or by its imbibition or absorption, or by one or more of these channels, to the whole body, affecting, more or less, the blood, the secretions, and the solids. That these changes take place is undeniable, although the precise channel of pri- mary infection cannot be easily demonstrated ; and is sufficiently proved by the facts already adduced (§ 92.), and by those which follow (§ 133.). The instances of gangrenous or diffu- sive inflammation of the cellular tissue, arising from contact or inoculation of putrid animal mat- ter, as recorded by numerous writers, and recently by Drs. Butter and Duncan ; the not infrequent instances of it from injury in the dissecting-room (see Cellular Tissue, Diffusive Ivjiummation of); and the occurrence of putrid fever, with gan- grenous pustules and carbuncles, particularly amongst farriers, flayers, and knackers ; furnish proofs and illustrations of the blood being one of the chief, although, perhaps, not the primary or only, channel through which the whole frame becomes more or less infected in a large and important class of diseases. A most remarkable instance of this, and at the same time showing to how great an extent the fluids and solids of the body may be contaminated, and yet the patient recover, is recorded by ]\I. Gendrin. 133. A flayer was affected with putrid fever, and gangrenous pustules and carbuncles. His breath, evacuations, and whole body, were hor- ril)ly foetid ; and blood taken from a vein was, three hours and a half after its emission, unusually dissolved and black ; and gave out an odour resembling that of putrid flesh. A spontaneous discharge of a black, dissolved, sanious blood, also occurred from his mouth and nostrils. ]M. Gendrin introduced some of the blood taken from the arm of this person into the cellular tissue of a cat, and into the femoral vein of a dog. Both animals evinced symptoms of putrid fever, and died in a few hours. The blood throughout their bodies was dark and fluid ; the heart soft and flac- cid ; the viscera congested, and ecchymotances, has been confirmed by the ex- periinents of the writer. That both alkalies, acids, and salts, act upon the system chiefly from their being absorbed and carried into the blood, has been satisfactorily demonstrated by Magendie, TiEDEMANN and Gmelin, RIeyer, Westrumb, and various otiiers, and will not be now doubted, although the active exercise of the eliminating functions, which their very presence in the blo;.d generally promotes, prevents their accumulation there to any considerable or deleterious extent, unless they have been taken in poisonous doses. They have, nevertheless, been absorbed in such quantity as to be detected both in the blood and in the various secretions by means of chemical agents, as demonstrated by MM. Grognier, Chausster, Orfila, and by Bi'chner, Krimer, Bennerscheidt, Schubartu, and Dr. O'Sh augh- NESSY, 137. c. The interesting researches of MM. Gas- pard and Magendie, in order to ascertain the effects of putrid vegeUible and animal matter when introduced into the cellular tissue or in- jected into the blood, further illustrate the im- portance that is to be attached to morbid states of this fluid, as well as the origin and nature of various diseases. These physicians have fully proved that such substances, when thus em- ployed, produce symptoms very similar to those of yellow fever, and typhus ; and that, after death, this fluid is found remarkably altered, being nearly altogether fluid, of a very dark colour, and partially exuded from the capillaries, both into the parenchyma of the viscera, and from the mu- cous surfaces. That the blood is really altered in Its nature by this inoculation, is proved not only by those changes, but also by the circum- stance of its having lost the power of coagulat- ing upon removal from a vein soon after it has been thus infected, and by its speedy putrefaction. 'J'iie more recent experiments of MJM. Leuret and Hamont furnish the like results ; whilst those performed by M. iMagendie show that dogs con- fined over, and breathing the effluvium proceeding from, animal and vegetable matters undergoing decay, experience similar symptoms to those now referred to, and the same alterations of the blood, of the secretions, of the execretions, and of the viscera, as observed in yellow fever : and, in all these cases, the morbid changes also extend more or less to the soft solids, and particularly to the mu- cous surfaces, the lungs, the liver, the heart, &c. 138. A most interesting fact has been stated by M. Leuret, and one which fully illustrates Vol. I. FLUEXCE ON THE. 193 the views I have entertained respecting the nature of certain forms of puerperal fever. This phy- sician injected some blood from an artery of a living horse affected with gangrenous boils (pus- tula? malignae) directly into the veins of a mare five months with foal. She died five days after- wards. 1 he heart, lungs, and intestinal canal were studded with dark ecchynioses, the uterus was gangrenous, and the blood dissolved and dark-coloured. But, in all the cases where poi- soning has resulted from the injection of septic or putrid matters into the circulation, or from virulent, and rapidly fatal poisons, it must not be overlooked that, although the more manifest lesions are often observed in the blood, the injuri- ous agent affects also the organic nerves terminat- ing in the vessels, and consequently the vitality of the vessels themselves, altering the blood they con- tain, and thereby ultimately contaminating all the secretions and solids of the body ; and that the mode of operation of the greater number of these septic agents, whether applied in an aggregrate or palpable form, or from being dissolved in the moisture of the air, is very different from that of the saline and mineral substances considered above, which affect the blood more especially. (See Infeciion.) 139. d. The direct influence of the nervous system upon the blood was long since contended for by Barthfz, and admitted by several physio- logists, the chief error, or rather mischievous fallacy in their theory, however, being, that this inHuence was imputed to t he cerebro-spinal nerves, and not to the ganglial nerves, to which it almost entirely belongs. This great mistake also vitiates the opinions promulgated on the subject by Mr. Brodie and Dr. W. Phillip. The opinions which I have entertained, and frequently ex- pressed, that the power exerted by the nervous system on the blood is limited to the organic or ganglia! class of nerves, and that their functions are very distinct from those performed by the cerebro-spinal class of nerves, the influence of the former having been loo generally and errone- ously imputed to the latter, have been already alluded to. Since their promulgation many years ago, numerous proofs of the accuracy of these views have been furnished in different countries. That the effects produced by the organic nerves take place chiefly in the minute vessels may be safely assumed ; ami that a reciprocative influence is exerted by the blood upon these nerves will not be denied ; but it may also be inferred that the effects produced by the organic nerves ate not limited to the small vessels. Professor Meyer's experiments support this opinion. He found that, when both pneumogastric nerves were tied, the blood coagulated in all the pulmo- nary vessels, the colouring matter having sepa- rated from the fibrine; and that this change was not the consequence of death, but its antecedent, since it was uniformly found upon opening the bodies the moment they expired. IM. Dupuvtren had previously ascertained, that a simple division of the pneumogastric nerves prevented the venous from being converted into arterial blood in the lungs. 140. M. DupuY' found that, when the pneu- mogastric nerves were divided in the cervical region, in horses, the quantity of fibrine in the blood became progressively diminished to a very O 194 BLOOD — Operation of Poison on the. remarkable extent ; and that a similar result fol- lowed laborious breathing in disease. lie fur- ther states, that the blood throughout the animal was entirely dissolved after the pneumogastric nerves had been divided ; and he adds that, when a portion of this blood is injected into the jugular vein of another horse, a gangrenous af- fection is produced (§ 92.) But iliese eflects are comparatively slow ; for, in order that they may take place, tlie division of these nerves must previously affect the ganglia and plexi supplying the lungs and heart, and with which they are in intimate connection. When, however, these ganglia are immediately impressed, the effect is much more rapid. Such impression cannot, how- ever, be readily made upon the ganglia them- selves, owing to the protection tlieir situation affords them from experiments of a conclusive kind. But as we find that agents, which do not affect the system when applied to the voluntary nerves, or the brain itself, will act rapidly when brought in contact with parts which are especially provided with the other class of nerves, and mani- fest the effects of this mode of operation upon the parts more immediately influenced from this source, we must necessarily conclude that the moibid impression of poisonous substances is pri- marily exeited upon the latter, and not upon the former; and hence the rapidity of their efl^ects upon the blood, — effects which are productive, no doubt, of most important consequences through- out the economy, which I am endeavouring to estimate fully and fairly, but which should not altogether obscure our perception of earlier changes, which alone can account for all the phenomena. A severe blow over the ccBliac ganglion will pro- duce instant death, and the blood will remain dissolved, and exhibit the same appearance as after death by lightning and the most virulent poisons. Here we can attribute these remaikable chan es only to the sudden concussion, and an- nihilation of the influence exerted by this im- portant part of the organic or ganglial class of nerves — by this central source of vital power — upon the vascular system, and to the effect thereby pioduced upon the blood. 141. Seeing, therefore, that the organic or ganglial nerves are chiefly distributed to the very internal membrane of the blood-vessels for the purpose of tiansmittmg their vital influence to the blood itself, it must be inferred that, although various substances or poisons may seem to act more particularly and immediately upon the blood, and oiliers more dyrectly on this class of nerves according as they are applied within or without the vessels, the action cannot be restricted to either ; hir whatever changes the state of the one, must affect the other. 'I'iiat poisons, when intro- duced into the blood, will have an almost instan- taneous effect, but not in the manner usually ex- plained, may be readily granted and accounted for. The views upon the subjei:t fr{(|iiently Stated by the Aulhor in the Aledical Repo- sitory, and in his Physiological iXoies, seem more in accordance with tlie resulting phenomena ; and are moreover confirmed by experiments and ob- servations recently made by others; for when the jioisoii lias been applied to the cerebro-s])inal nerves, it has been found by Oiiiti.a, Foniana, and others, to have no further ojieralion, or even less, than when applied to other tissues, because it is not directed to that particular organisation, upon which the functions of life more imme- diately depend. But when injected into the blood, it is applied to the terminations of the organic nerves in the blood-ves-sels — to that particular quarter where the life of the tissues and of the blood is either generated or supplied, — to tlie seat where the influence of these nerves aftects, even if it does not vitalise, the circulating fluid, and the operation is instant and most manifest. The reader, who, possessing an intimate acquaintance with the healthy relations of the organic nerves to the blood-vessels on the one hand, and to the cerebro-spinal system on the other, examines the numerous experiments which have been perform- ed, — by one class of experimenters to show the action of poisons upon the nerves, confounding, as all have done, the ganglial with the cerebio- spinal nerves, — and by another class to demon- strate the operation of these substances on the blood solely, both sides leaving reciprocity of ac- tion, or rather the rapid change occasioned by one system on the other, too much out of the question ; and is able to detect the fallacies with which they nearly all more or less abound, chiefly from con- founding distinct functions, and even different systems, with o.ie another; will entertain but few doubts that the influence of various poisons, al- though more manifestly indicated in the blood, is chiefly exerted upon the nerves which terminate ia the blood-vessels ; and that the alterations in the contents of the vessels arise principally from pre- vious changes produced upon these nerves, however rapid the succession of the phenomena may be. 142. The celebrated and accurate experiments made by Fontana on the venom of the viper and the ticunas can be justly estimated only in ac- cordance with this view ; for when these sub- stances were applied to the cerebro-spinal nerves no more rapid eflfect was produced by them than upon any other tissue : but, when injected into tlie veins, a fatal result was almost instanslaneous ; tlie blood, in the words of this able experimenter, being suddenly changed to a livid black, and soon afterwards coagulated in the lungs, heart, auricles, and liver, as well as in the large veins, with violent disease of the structure of the lungs. Now, as these substances, when added to blood as it is drawn from a vein, preserve its fluidity, they must produce, on the organic nerves ramified to the blood-vessels, a most intense effect ; the alteration in the blood resulting evidently from antecedent change in the vital influence of these nerves, since no such alteration is occasioned by them when added, even much more abundantly, to blood as it flows from a vein. And tliere can be no doubt that virulent poisons introduced into, or having access to, blood contained in the vessels of a living animal, however the vessels may be in- sulated from surrounding nerves, must come in contact with its interior, and thus have an occa- sion given them to act upon the independent class of nerves which is especially devoted to the blood-vessels. That the very instant and intense effects which I have, in three intances, seen produced upon the blood of the human subject from the bites of serpents, and which have been minutely described by Orfii.a, Fon- tana, and many oilieis, cannot arise fr m the diffusion of the poison in the blood, must be evi- dent from the rapidity with which they occur, but BLOOD — SrGNS from the morbid Impression made by tliem upon the vital or ganglial nerves, and instantly propa- gated tlirouuhout the frame ; the eft'ects of this impression first appearing as a manifest lesion in the part where the injury was inflicted, and in the blood, which, as a part of the vascular system, is co-ordinately affected with the class of nerves supplying both it and the vessels which contain it, with vital influence. From the mode of ope- ration, therefore, of all the most virulent poisons, as hydrocyanic acid, the venom of the viper, ticunas, Ike., I infer that, as the organic system of nerves may be intensely affected, without altering the state of the brain more than that of any other im- portant organ, and then secondarily merely, so may those poisons destroy life by their effects upon this system of nerves primarily and chiefly, other lesions being consecutive, amongst which the alteration of the blood is the next mo!^t imme- diate, and the next most important in its relations and consecjuences. (See Poisons.) 143. E. The pussiige into the blood of morbid matters formed in the same body that is the seat of disease, has been paiticularly noticed in the arti- cles on Absorption and Inflammation of Veins, I have shown, when treating on these subjects, as well as of certain organic and malignant diseases, that vitiation of the blood, and ultimately of the soft solids, more or less, is a very frequent occur- rence ; that it is hastened or promoted by depres- sion of the vital energies; and that this fact, as well as the vitiation of the blood, should be taken into account in treating these maladies, parti- cularly in their more advanced stages. It is probable that morbid matteis may sometimes exist in the blood without very materially affecting its condition ; but they much more frequently occa- sion very important changes in its constitution, as must appear from what has been stated, particu- larly when the powers of life begin to languish. Pus has been often detected in the veins which convey blood from parts undergoing tlie suppu- rative process, both by the older physicians and by recent writers, particularly Bighat, Fizeau, Vei.peau, Rochoux, GENnniN, Andral, Danck, BREScnET, and Ribes ; and it seems very pro- bable that, when thus absorbed, and not mixed with, or eliminated from, the circulation, it gives rise to various changes of the blood in the vessels, not only from attracting the fibrinous corpuscles in the manner already noticed (§ 85.), but also from combining with albuminous or other consti- tuents of this fluid. I further believe that the sanies which flows from chronic ulcers, or from the inside of veins when affected with spreading in- flammation of their internal surface (see Veins), and from the internal surface of the uterus in ceitain states of puerperal disease; and that the tubercular and encephaloid matter which often forms in internal viscera ; may all be carried into, and most sensibly affect, the circulating fluid, and, through it, all the functions and structures of the body. 144. M. Andral states, that he has often found in the blood-vessels, instead of blood, a curdy friable matter, of a dirty grey colour, and resembling either the semi-concrete pus of chronic abscesses, or the sanies of malignant ulcers, or encephaloid matter broken down and mixed with blood ; and similar instances are recorded by BicHAT, Beclard, and Veipeau. In all these OF ITS Disease. 195 cases, abscesses, tubercles, or other morbid form- ations, also existed in some pai ts of the body. (See arts. Absorption, Abscess, &c.) In many of such cases, it is diflicult to determine what may have been the state of the general mass of blood in the latter stages of the disease, owing to the peiiod which had elap-ed from the dissolution of the patient to the examination ; but it is very probable that the morbid matter found in the vessels had mateiially affected, either directly or mediately through the organic nerves, the consti- tution of the whole fluids and soft solids of the body. 145. iv. Phenomena materially depending UPON a vitiated state of the Blood, and SERVlNCf TO indicate ITS EXISTENCE. I haVe contended that the functions of depuration are very frequently concerned in occasioning, as well as in removing, a morbid condition of the circulating fluid. These functions will, therefore, evidently present some modification, when performing this latter purpose, inasmuch as the stale of the blood, and of the impurities requirmg change and elimin- ation, will excite in them, as well as throughout the soft solids, more or less disturbance. In the slighter cases, the disorder of function will be less apparent ; but even in \hese, and still more re- markably in the more severe cases, the particular function most disturbed will generally evince some relation to the kind of change existing in the blood. This relation of the change or im- purity of the blood to the functions of the viscera is very similar to the mode of operation and effects of very many medicinal substances, which, having been carried into the circulation by the function of absorption, act upon particular organs accord- ing to the circumstance of their exciting or other- wise changing the vital condition of these organs while they are being circulated through or elimin- ated by them. 146. As respects, however, this relation of the pathological slates of the blood,' much requires to be ascertained, or rather but little is yet known beyond a few facts evincing that such relation sometimes actually exists. Thus we observe that excess of carbonaceous elements in the blood is removed chiefly by means of the liver, occasion- ing an abundant and vitiated secretion of bile. We may frequently remark, that an imperfectly elaborated chvle, or the partial absorption of sordes from the intestinal canal, renders the breatli foetid, and the urine loaded, or otherwise changed ; that accumulation of the materials usually eliminated by the kidneys produces copious urinous perspira- tions, and the exhalation of a copious foetid halitus from the lungs ; and that putrid vegetable and animal matters, or morbid secretions carried into- the circulation, derange the digestive mucous sur- face and secreting organs in a somewhat greater degree than other parts. 147.^. It obviously becomes most important to inquire if the phenomena resulting from change in the blood slowly brought about, or proceeding from pre-existing disease of important functions, are different from, or are nearly the same as, those which arise from the introduction of putrid or morbid matters directly into the circulation. We observe in the last stages of malignant diseases, when the blood undoubtedly becomes changed, that all the secretions are reniaikably offensive, acrid, and even excoriating. The breath, per- O 2 196 BLOOD — Signs of its Disease. spiration, urine, and stools, are foetid ; and the surfaces and parts with whicii the secretions and excretions come in contact, experience more or less change in tiieir vital actions, and are disposed to undergo rapid disorganisation. All the cir- fulating and secreted fluids have acquired septic and irritating properties ; and discharges of san- guineous, or black, grumous, fluid matters some- times take place Irom the digestive canal. The whole soft solids also lose their vital cohesion and tonic contraciility, and are rapidly destroyed upon accidental injury and pressure. Hence the fre- quency and severity of the excoriations, ulcers, and sphacelating sores, which affect the promi- nent parts, sustaining the weight of the body in bed ; and to this cause, in some measure, are to be imputed the ill effects sometimes following the use of blisters in the last stages of adynamic diseases. The whole surface of the body and countenance also presents more or less of the characteis wiiich distinguish change of the other structures from this all pervading cause; they lose their vital and animated hue, and become lurid, murky, or of a dirty pale lint ; in some cases of a dirty or muddy pale yellow ; in others slightly livid, or even altogether purpli'-h ; and in many instances, besides assuniing a lurid and unhealthy colour, they are dotted with pelechiai, ecchymoses, and blotches of various shades, from a reddish tint to a reddish brown and deep purple. In numerous cases, particularly in the last stages of yellow fever, the skin is of different shades of yellow, frequently disposed in large patches, some of which are deeper than others, but the whole surface being more or less changed from its healthy tint. All these appearances arise from the state of the colourless pirts of the blood, transmitted by the minute vessels of the integuments ; and the admission, wdiere ecchy- mosis, &c. occur, of colouring uiatter into vessels which did not circulate red blood in health, and the extravasation or escape of minute portions of a reddish serum, or attenuated or semi-dissolved blood, from the poies or extremities of the capil- laries of the 1-ete miirosnm, — a change, iiowever, which is not limited to the teguments, but which often exists still more remarkably in the mucous and submucous surfaces, and parenchymatous organs {§ 149.) 143. B. The rapid or direct introduction of vegetable or animal putrid matter, purulent sanies, or animal poisons, into the circulation, geneially occasions, not only changes in the blood, destroy- ing its properly of coagulating, and imparting to it a temlency to (juick decomposition, but also most intense disease of ihe principal organs: — a. The nervous centres are remarkably impressed, giving rise to great prostration of strength, deli- rium, convulsions or dealh, according to the intensity of ihe cause : — h. The digestive organs are affected by vomiting of morbid, brown, grumous, or other fluids: wiih purging of san- guineous, dark, putrid, or black matters ; or dis- tended with ffEtid gaseous secretions : — c. 'J'he respiratory and circulaii-ig functions are remark- ably deranged — the respiration is quick, difK- cult, or panting ; the action of the heart quick, weak, or fluttering, and llie impulse deficient; and iht: pulse, at first full, open, broad, and un- usually soft and compressible, soon becomes un- commonly quick, weak, and ultimately small, thready, or fluttering: — d. General disease of al! the functions and soft solids, accompanied with speedy death whon the cause is intense; but with the symptoms of adynamic, typhoid, or putrid fever, when acting more slowly, or to a less extent, and occasioning sphacelation or gangrene of vari- ous parts, gaseous exhalations, or secretions, and various serous, sanguineous, or sanious exhalations and infiltrations. 149. C. The effects upon the fluids and soft solids have been already mentioned incidentally, and may, indeed, be inferred from what has been staled. These chiefly consist : — a. Of a foetid, de- composed, remarkably morbid, acrid, and dark or unnatural colour of all the secreted fluids : — b. Of diminished cohesion of the tissues generally, but most remarkably of the mucous, cellular, muscular, and glandular parts, — liie heart is soft and flaccid, the blood dissolved, and the in- ternal surface of the heart and blood-vessels tinged of a more or less deep red colour, owing, as M. Trousseau has fully proved, to the altered state of the blood ; the muscles are easily torn, the mu- cous and cellular tissues are soft and pulpy ; all the structures have lost their vital and physical elas- ticity, and they all undergo decomposition more rapidly than usual: — c. Congestions, infiltrations, extravasation, &c. of fluid dark blood, into the pa- renchyma of the lungs, liver, kidneys, and into the cellular, mucous, muscular, and other parts, with gangrenous spots, and a foetid odour. 150. Such are the consequences of putrid or morbid matters conveyed into the circulation, and the result, in respect both of the phenomena, and of the temote organic lesions, of changes produced by these matters in the constitution of the whole fluids and structures of the body. When these matters are in a less concentrated state, or enter the circulation in a more gradual manner, they will then act in a relatively slower and less intense form, and their effects will more nearly approach those described as consequent upon a diseased state of the blood in malignant fevers (§§ 125 — 130.) Yet their operation will still retain nearly the same distinctive characters, the symptoms varying chiefly in degree, but not ma- terially in kind, unless the nature of the cause has also varied. Whetiier we contemplate, therefore, the character and progress of the phenomena fol- lowing infection of the blood from these various sources, or the nature of the lesions which ulti- mately result, we shall be equally struck by the maiked similarity existing between them. 151. That the blood is changed in various other maladies, although to a much less extent, may be infeired from the phenomena which are observed either essentially or contingently in their course. 'i'he secondary fever in small pox is apparently connected with the partial absorption of the more fluid parts of the matter contained in the pustules, and the change thereby produced on the blood, and through it upon the economy. In- stances have come before me, where, upon the rapid disappearance of the small pox eruption, puiulent matter was secreted suddenly and in large (luantity in the capsules of the joints, and without any previous or coexistent inflammation of these parts. In such cases, the purulent mat- ter liad evidently passed through tlie current of the circulation. (See Aiisciss — Consecuti tie, znd AiisonrTiON.) Similar occurrences are not in- I BLOOD — Treatment frequent in cases of inflammation of veins, and in puerperal metritis. (See Veins, &c.) 152. V. Therapeutical Indications and Mea- sures IN diseased states of the Blood. — The facts and observations now adduced in iiiustralion of the pathology of the bipod must appear suffi- cient to attract greater attention to the state of this fluid in the treatment of diseases, than has been directed to it in modern times. However scanty well ascertained facts connected with this subject may seem, they are at least sufficient to justify us in directing our means of cure to the removal of those changes which may be presumed to exist in this fluid. This indication is the more safely entertained, as those means are often at the same time the most efficacious in removing pre- existing or concomitant disorder of the nervous or other systems of the frame. And it should not be overlooked, in our anticipations of the benefit resulting from curative indications founded on these views, that the most certainly beneficial means of prevention and cure of a most danger- ous disease admitted to depend ciiiefly on the blood, viz. scurvy, is a remedy which acts princi- pally on this fluid, — the citric acid. 153. There are certain facts, which a review of the foregoing observations will lead us to en- tertain as useful data for our guide, both in the recognition of changes in the blood, and in devis- ing means for their treatment. It will be appa- rent from what has been adduced, that remarkable diminution or exhaustion of the vital manifest- ations of the organic nerves, or of the vital energy generally, renders the blood dark coloured, pre- vents its fibrinous particles from adhering into a coagulum when removed from the vessels, dis- poses the colouring matter to separate from their central corpuscles, and occasions a diminution of its saline ingredients. The effects of various matters, vegetable, animal, and mineral, when gradually and circuitously conveyed, or directly introduced, into the blood, have been particularly described, not merely as evidence of the very important changes produced by them on this fluid, but also as furnishing indications for the removal of similar alterations, when they are the results, immediate or remote, of diseaseil actions. 154. A, Treatment of blood abounding with fibrinous and albuminous constitui'nts — of bnffii blood, i5)T. — In various disease-:, particularly those which are inflammatory, in the early stages of the exanthemata, especially in certain epide- mic occurrences of these maladies, the blood abounds in these constituents ; and hence partly the copious albuminous and fibro-albuminous exudations which are thrown out by the blood- vessels in their progress. The knowledge which we have already obtained as to the effects of cer tain substances on the blood, indicates the pro- priety of having recourse to such as possess the property of diluting and attenuating these con- stituents, at the same time that they diminish the vascular action which is instrumental in secreting them ; and experience fully proves, by its success, the propriety of the treatment. Blood-letting, and afterwards the free use of diluents hokling in solu- tion the alkaline carbonates and salts, more particu- larly the citrates of potash and magnesia, cream of tartar and borax, or the potassio-tartrate of anti- mony, digitalis, large doses of calomel, or other substances which have been shown to produce an OF ITS Morbid States. 197 attenuating effect upon the blood, are especially indicated. Blood-letting in those cases is of the utmost service, as it diminishes general action, and removes a portion of the fibrine and albumen, which are replaced by the thinner fluids absorbed from the prima via and tissues. 155. B. Treatment of blood with a loose coagu- lum, S^c. — Rapid coagulation and deficient ad- hesion of the clot have been shown to arise from weak nervous influence and vascular action; and indicate the propriety of having recourse to stimu- lating tonics, particularly when the smallness of the coagulum, and whey-like, milky, or turbid state of the serum, evince a poor and imperlectly elabo- rated blood. In this case, chaljbeates, the sul- phate of quinine, and the more permanent tonics, with the mineral acids, and the metallic salts, are especially required. When in addition to this state, the blood is of a very dark colour, the com- bination of stimulants with tonics and the alkaline salts, especially iheclorides of potassium or sodium, will be found most advantageous. In cases of this description, however, the preparations of ammonia, excepting the hydrochlorate and acetate of ammo- nia, although stimulating, will not be found so ser- viceable as other saline preparation*. When, however, the hydrochlorate and acetate of amrnonia are combined with excess of acid, the use of them will be advantageous. Camphor, serpentary, and arnica, the essential oils, the turpentines and balsams, are all beneficial in this state of the cir- culating fluid. 156. C. The treatment in other morbid states of the blood will necessarily vary according to the particular appearances it may present — a. When the blood coagulates imperfectly, is daik coloured, is readily decomposed, or is thin and dissolved, as in scurvy and various malignant and adynamic diseases, especially when the vital cohesion of the tissues is also impaired, the use of most of the remedies recommended above (§ 155.), particu- larly the chlorides, the preparations of biirk, an- tiseptic vvines, the oil of turpentine, camphor, the chloric and hydrochloric acids, with vegetable tonics, the niiro-hydrochloric acid, vinegar, citric acid, &c. The influence of ac'ids in restoring the state of the blood, particularly when morbidly at- tenuated, and deficient in fibrine, ajipcars to have been well known to the ancients, and the indica- tions thereby offered put in practice by them. Vine- gar was adopted by the Carthaginians and Romans in all their campaigns as the chief beverage, as may be gathered from Virgil, Martial Pliny, Galen, &c.; and its advantages have been ad- verted to in modern times by Linnsus. There cannot be a doubt that both it and citric acid are particularly serviceable in preventing the at- tenuation, and tendency to dissolution, of the blood, generated, as has been shown, by excessive fatigue and exertion, — causes which have often been proved (§ 134.) powerfully to concur with unwholesome food, and vegeto-animal miasms, in the production of scurvy, dysentery, and typhoid fevers. It appears that the scurvy, which was found so destructive in Admiral Anson's fleet, was in no small degree promoted by the excessive labour of the men at the pumps, — a species of exertion which tends more than any other to ac- celerate the circulation, and exhaust nervous power, and consequently to produce a dissolved and incoagulable state of the blood, and to dimi- O 3 198 BLOOD — Treatment of its Morbid States nish its fibrine. When, however, the blood is 11)01 bill ly thick and carbonaceous, when the re- spiratory functions are imperlectly performed, and when there appears lo be a deficiency of saline constituents in the blood, as in the advanced stages of fevers, the fixed alkaline saUs, and chlo- rides, are much to be preferred to acids. 157. b. Since the general neglect into which the humoral pathology has fallen, antiseptics have almost been discarded from practice ; at least, medicines have seldom or never been given with an intention of preventing a tendency in the fluids and solids to dissolution. It must have been long known to every person who considered attentively the operation of remedies on the frame, that many of them, either directly or indirectly, produce this efTect, in conjunction with other operations; and that they act in this manner, 1st, by exciting the organic nerves, and increasing the vital cohesion of the tissues, to which they are immediately applied ; and, 2dly, by their passage, to a greater or less extent, into the circulation, and operation on the blood itself, and, through its medium, on the nerves supplying the vascular system, and on the structures generally, — the antiseptic efTect being the sum of those actions. Amongst the various antiseptic remedies with which we are acnuainted, there is none more energetic than the chlorides or chlorurets, the spirits of turpentine, camphor, the barks, mineral and vegetable acids, the spices and aromatics, metallic, earthy, and alkaline salts, spirits, and balsams ; and observation has proved to us that these are actually the means which, when appropri.itely employed, are mo^t suc- cessful in removing morbid states of the blood, secretions and solids. Needham and Paulet found salt most successful in combating an epi- zooty characterised by a morbid state of the blood ; and 1 had an opportunity of ascertaining that, without a necessary supply of this substance, the natives of the more insalubrious districts in intertropical Africa are carried off in great num- bers by a putrid and liquiscent dysentery, for which salt, lime-juice, and cayenne pepper are their principal means of cure. It should, liow- ever, be remembered, that all stimulants are not also antiseptic in their operation on the blood. The preparations of ammonia have even an oppo- site effect, except the hydrochlorate combined with an excess of acid. 158. c. During the treatment of all diseases in which he blood becomes more or less changed, it will be reiiuisite to have strict reference to the causes from which the change has arisen. Un- wholesome food, vegeto-aniiniil miasms, imperfect secretion and depuration, and deficient nervous and vital power, have been shown to be the chief of these. That the first and second of these should be avoided, need not be stateil ; and that the secreting and eliminating functions ought to be promoted, in order to purify the blooil, is ecjually manifest. The hervous and vital energies must be not only supported, but also promoted and excited, in order that the power of secretion may be afforded to the torpid and weakened viscera ; and that the crasis and vital condition of the blood may be thereby restored, and the tonicity of the capillaries, and of the tissues generally, be increased. In addition to these, also, morbid se- cretions should be frequently evacuated, in order that vital power may not be further reduced by their morbid impression on the nerves and mucous digestive surface, and that the possibility of the absorption ol any part of them into the circulation may be thereby avoided. But, in carrying this indication into execution, care ought to be had as to the measures which we employ. Gentle means are generally requisite, as rhubaib, &c. But those substances, which, with an aperient opera- tion, possess also a stimulating and antiseptic operation, as the oil of turpentine, should be se- lected ; or, if other substances be prefeired, they should be combined with tonics, antiseptics, and stimulants. Formulae 266. 437. 572. in the Ap- pendix, are good examples of this combination. 159. d. In all the alterations of the blood re- sulting from the introduction or absorption of morbid matters from parts previously diseased, whatever tends to lower nervous and vital power, or to promote absorption — more particularly blood- letting, which operates in both these ways — ought to be guarded against, and a diametrically oppo- site plan of cure adopted ; not neglecting at the same time the promotion of the depurative and excreting functions. 160. e. In diseases where it seems evident that the watery and saline parts of the blood are drained off, by the continued exudations from the mucous surfaces, as in cholera, particularly epi- demic cholera, diarrhoea and dysentery attended by dangerous symptoms, much advantage might accrue from the injection of warm water into the veins, holding a very small proportion of saline matter, particularly the chloride of sodium and carbonate of soda, with a minute quantity of some mdd stimulant and astringent, in solution ; care being taken that the latter ingredient be not in nearly such quantity as to effect the albumen of the blood. Spirit of wine, ammonia, sulphate of quinine, &c. may be thus employed. (See Poi- sons, for treatment of Puisiming of the Blood.) 161. D. Prophylaxis, or the prevention of mor- bid states of the blond. — The extended inquiry which has been entered into respecting the causes of the alterations which take place in the blood, furnish the chief indications for preventing their occurrence. The primary influence of the organic nerves upon the blood, and the effect rapidly produced upon this fiu:d by a diminution or vitiation of this influence, having been con- clusively shown in respect of changes directly produced by this class of nerves, both on the blood circulating in the vessels, and on the func- tions of secretion and depuration, it becomes a matter of the first moment to preserve the vital manifestations of this important part of the ner- vous system from experiencing depression or ex- haustion ; especially where causes having this effect are in operation, and where there is any risk of those morbid matters, which have been shown in this article to be the chief sources of vitiation, being carried into the blood ; particularly those vegeto-animal, or animal efliuvia, which, floating in a moist atmosphere, act both by de- pressing these vital manifestations, and by in- fecting the blood itself. Persons exposed to those sources of disease sliould live on a due proportion of farinaceous and other vegetable substances, with a moderate proportion of fresh animal food, and preserve the energies of the digestive and assimilating organs: always attentively promoting the functions of secretion, depuration, and excre- BLUE DISEASE.— Pathology op. lion. At the same time many of the substances mentioned above may be employed as beverages, condiments, or preventives ; more particularly the medicines f'ormeily denominated antiscorbutics, the citric acid, lenions, lemon-juice with sugar ; spruce beer, vinegar in which tlie warm spices, as capsi- cums, have been infused ; the cliloi ides, camphor, quinine, &.c. As it has been satisfactorily shown tliat great excitement and acceleration of the circulation, besides exhau>ting nervous and vital power, have also the eH'ect of changing and even of corrupting, the stale of the blood, such excite- ment should be prevented, and aliased when present, by appropiiate evacuations, and by refri- gerant saline medicines and beverages. BiBLioG. AND Refer — Jcssenms, De Sanguine ex Vena Misso Judicium. 4to. Prag. 161« — A/. Uqtfi/iann, De Sanguine, et ejus Observatione.4to. Altd. IdGO It. But/if, Anatoin. dbserv. on Milk tound in Veins instead of Blood, Phil. Trans. Ki-W, |)p. 100. 13'J. ; and Natural His- tory of the Human Blood. 8vo. Lond. I(j84 — Cnurten, txpernni-nts on the Blood, by injecting various sub- stances into the veins, Pliilos. Trans, vol. xxvii. p. 48.i. (Abounding: in important facts.) — Albinus, De Pravitate Sanguinis. 4to. Franc. I'iJsy. — i)e 6'a«(/;'?i, De Naturali et PriEternaturali Sanguinis .statu. 4to. Bon. llinij. — Jlit'irtns, De Sanguinis Pravitate. 4to. Ultraj. 1702. — Sicuerlin, De Morbis ex Crasi Sanguinis Alterato oriundi?. Ualas, 1706. — F. Hvjfmann, De Judicio ex Sangume per Venaescctioneni emisso. Halje, 1727. — Friend, Eramenagogia, Opera Omnia, p. 130. lol. Loud. 1733. {Co}itaiits a fiumber oj important experiments). — Schuri- gius, Hajmatologia Histoiico-Medica. 4to. Dresd. 1741. — Schivenckc, Haeniatologia,sive Sang. Hist.4to. Ilagae, U43. — A'/cutez, De Spissituiiine Sanguinis. 4to. Halae, 1749. — Bucchuer, De nimia SanguiuisFluiditate, et Murb. inde oriundis. 4to. Halie. 1741). — Meyer, De Signis ex Sang. per Venesect, petend. Halse, 1753 Haller, Elementa PhysiologiEe, 4to , vol. ii. p. 17. et seq. {Acullcctiunojmt- ■merous facts, with impurtant new observations.) — Hciv- son. Experiment. Inquiry into the Properties of tlie Blood. 8vo. Lond. 1771. ; and Philos. Trans. 1773, p. 303 — Bor- deu. Analyse Med. du Sang. Paris, llTb. — Milman, in Trans, of Lond. Col. of Phys. vol. ii. p. 478. — Lind, On Diseases of Hot Climates. 3d ed. 8vo. Lond. 1777 Pring/e, On Diseases of the Army, &c. 8vo. Lond. 1775. — Hci/, Observations on the Blood. Lond. 1779 Ferris, De Sanguinis per Corpus vivu u Circul. Putredine. 8vo. ICdin. 1784.— Gr((«(r;-, DePathologia Sanguinis. Jen. 1791. ■ — Deyeitx, et F armentier , Meinoire sur lis Alterations du Sang. 4to. Paris, \~i\)ii . — Lertlin, Beytrage, &c. b. iv. pp. 182—225 /(VrMti/?; Opera, p. 748.— J. Hunter, On the Blood, Inflammation, &c. 4to. Lond. 179-5. — Wells, On the Colour ol the Blood, Phil. Trans. 1797, p. 416.— Beale, Of the Diseases arising from vicious Blood. Lend. IHiiO.— Bostock. Medico-Chirurg. Trans, t. i. p. 47.— Thackrah, On the Properties of the Blood, &c.8vo. Lend. 1819. — Wilson, Lectures on the Blood and Vascular Sys- tem, 8vo. Lond. I819.;pp. 24. 50 Autenreith, Physiologic, 5§ 880. 922. 1034 Wolff, in Ilufeland's Journ. der Pr. Hellk. ix. b. 4 st. p. 97 Mickaelis, in Ibid. xiv. b. 3 st. p. 65 — J. Copta?id, in Appendix to M liichtrand's, Ele- ments of Phy^iology, 2d edit. p. 636. — Belhomme, Obser- vations sur le Sang'. Paris, 1823. 4to. — Home, in Philos. Trans, for 1826, p. 189. — Gendrin, Recherches sur les Fievres, &c. t. ii. p. U5. ; et Traiie Anat. ries Inflam. t. ii. p. 565, &c Bellengcri, in Annali Universali di Med. Ap. \Wn. — Schultx, in Meckel's Archiv fiir Anat. und Physiol. 1826, No. iv. p. 487. — Trousseaux, in Archives Gen. de Med. t. xiv. p. 328 Leuret, Archives, &c., xi. p. .3c3. — Segalas, in Ibid. t. xii. 103. — Dupuy, in Ibid, t. xiv. p. 289. — Bayer, Ibid. t. xv. p. 136 — Uaspard, in F. Mogcndie's Journ. de Physiol. Exper. t. Ii. p. 1., ei t. iv. p. h — F.Magcndie, in Ibid. t. iii. — Bochoux, in Nouv. Bib- liotli. de Med. Sep. et Nov. 1823 Diet, de Med. t. xvi. p. 206. ; et Journ. Hebdom. de Med. t. ii. p. 630. — Bois- seau, Nosographie Organique, t. iii. p. 175. — Velpeav, Recherches sur les Alterations du Sang. 8vo. Paris, I82G. — Christisim, in Ediii. Med. and Surg. Journ. No. ciii. p. 274. — Babington, in Trans. Med. Chir. Soc. t. xvi. Hibes, Anatomic Pathologique, &c. t. i. p. 308. — Andral, Pathological Anatomy, by Townscnd and West, vol. i. p. 638. — Piorry, Procede Operatoire, &c., et Collection de Memoires sur Pathologic, iSic. Paris, 1831. j sur la Cir- culation, p. 208.— J. Duvy,m Edin. Med. and Surg. Journ. vol. XXX. p. 249. BLUE DISEASE. Syn. Cijanosis (xuavo?, blue, and voVor, disease), Beaumes. Morhm C(eruletis, Cyanopathiu,'^ JNIarc. E.uingia Cy- 109 Die Blausucht, Gcr. aiiia, Good. Cyanose, Vr. Blue Skin, Blue Jaundice. Classif. 3. Class, Sanguineous Function ; 4. Older, Cachexies {Good). IV. Class, II. Ohder (Author, see Vrejace). 1. Defin. a blue violet, or purple, colour of the integuments, particularly of parts usualiv pre- senting arose or Jiesk tint, as the cheeks, lips, mu- cous surfaces, &;c, 2. A blue or purple colour of the integuments of paits, or nearly the whole of the body, may occur as a symptom in the last stage of various acute diseases. But it is present from the begin- ning of this affection, is frequently connected with comparatively litile disturbance until some sudden change takes place, and generally results from chronic organic lesion. In other maladies this colour is an accidental, occasional, and not the most important symptom ; in this affection it ap- pears as the only, or the most remarkable, change observed during life. 3. I. Its Patholooy. — According to M. Gin- TRAC, who has directed much atieniion to this affection, it always proceeds from organic chaiioe of the heart or large vessels ; the admixture of venous with arterial blood, and the distribution of it to the sui faces of the body, being the immediate or essential cause of the alteration of colour. 'Iliis pathology agrees with the opinion of Senac and iMoBGAGNi : it has, however, been disputed. J\l. CoRVisART first threw out doubts of the con- stant oiigin of cyanosisin this source; and more recently MM. Ferrus, Breschet, Marc, Louis, fouQuiER, and Crampton, have adduced facts which seem to militate against it, while it has re- ceived the able support of INI. Bouillaud. 4. M. Ferrus contends, 1st, '1 hat cyanosis sometimes has existed to an intense degree, and yet upon post mortem examination no lesion could be detected admitting of the admixture of venous blood ; nor any organic change of the heart or respiratory organs: 2d, That the opening of Botal may continue unclosed for many years without blueness of the surface being occasioned : and, 3d, That the admixture and circulation of venous with arterial blood have been demon- strated to occur in some cases, without giving rise to this peculiar appearance. 1 hat the second and third objections are well founded seems al- niost incontrovertible. Numerous instances have been recorded by Louis, and others, which fully prove these facts. 1 have met with cases in children, where the communication between both sides of the heart seemed very free, and yet no alteration of the natural colour existed : and others, in which the change was evident during the pa- roxysms of suffocation only. But I must agree with Corvisart, Hicherand, Cloquet, Gintrac, and Bouillaud, that the existence of this opening is no certain proof of admixture of the venous and arterial blood ; for if the contractile powers of both ventricles are nearly equal, in relation to the resistance to be overcome, and if the natural openings of the cavities be not obstructed, no ad- mixture of the blood in both sides of the heart could take place. 5. The principal force of the objections, there- fore, urged by M. Ferrus, evidently rests upon the fact of the non-existence of organic diseases of the heart, large vessels, or lungs, in some cases of the disease, — a fact which is still not satis- O 4 200 factorily established. I believe that it may be safely concludeil, that the blue disease of infants and children is very generally dependent upon a communication between the opposite sides of the heart, or some malformation of the heart or large arteries, particularly contraction of the origin of the pulmonary artery, or some other change af- fecting the circulation through the right cavities of the organ ; vvhilst in older and aged persons, a similar colour of the surface may proceed from whatever obstructs the circulation through the large-veins, lungs, or heart, and even from simple congestion of the venous capdiaries from loss of vital power ; and in these latter cases the affec- tion more nearly approaches the blueness ob- served to occur as a dangerous symptom of various acute diseases of the lungs and heart, as of as- phyxy, and of pestilential cholera. 6. i. Symptoms, progress, and terminations of blue disease. — Tlie bluish tint of the external surfaces, whence this malady derives its name, is net equally deep in every part. It is usually deepest over the whole of the face, and the lips in particular, on the hands, feet, and genitals. During any effort, or wiien crying, this symptom ismuch more marked than during repose: at the same time the parts presenting a bluish colour, or a violet of the darkest shaile, are more or less puffed. The circulating and respiratory functions are rarely without derangement. The disordered cir- culation is characterised by palpitations more or less violent ; sometimes accompanied by a very distinct bellows sound, and by a purring tremor, tendency to fainting, and serious effusions. 'J'he breathing is laboured and panting after the slightest effort. The warmth of the body is considerably diminished, and patients are very sensible of cold. 'J'he functions in general, and principally those of locomotion, are more or less languid, and, as it were, benumbed. 7. The sym[)toms just described do not always exist in the same degree, during the continuation of the malady. It may even be said that the disorder is made up of a succession of paroxysms and remissions. In the paroxysms alone we ob- serve these frequent faintings, that tumultuous palpitation of the heart, and suffocations, which endanger the life of the patient. No rule can be relied on as to the recurrence of these paroxysms ; in fact, if it be certain that they are often brought on by over-exertion, fatigue, and violent mental agitation, it is equally certain that they occur without any assignable cause, and are more fre- ([iient in winter than in summer. The length of the paroxysm vaiies : it sometimes lasts several hours, and generally abates gradually. The termination of cyanosis is fatal to most patients ; but some appear to recover entirely ; otiiers live for many years. Cases of this kind have been recorded by MoitOAfjNr, SANnii-oiir, and Kuiu;- HAND. The death caused by this disorder is sometimes very sudden ; but in the majority of cases it is preceded by an intense suffering, cha- racterised by the most acute anguish, difficulty of breathing, fainting fits, and cold sweats. In a case of remarkable blueness from birth, in a girl, who was for some time under my care, the colour changed in the course of two or three years, to a dirty yellowish, chlorotic tint, which is still re- tained up to the thirteenth year. The disorder ol the heart's action and resjiiration, in this case. BLUE DISEASE,— Pathology of. although more or less considerable, was never very severe ; but the child was always remarkably delicate, and incapable of any bodily or mental exercise. 8. ii. Lesions observed after death : and their connection with the symptoms. — 1st, The most common lesion is the persistence or the re-esta- blishment of the opening of Botal, This com- munication of the two auricles is generally accompanied by an obstacle to the passage of the blood from the right auricle into the corre- sponding ventricle, or from the latter into the pulmonary artery. Twenty-seven cases out of fifty-three reported by M. Gintrac, presented such an obstacle. In twenty-six of these cases the circulation on the right side of the heart was impeded either by a contraction or by a total obliteration of the orifice of the pulmonary artery, and in only one case by the contraction of the right auriculo-ventricular orifice. Co-existent with these lesions is usually a hypertrophy of the right ventricle and auricle, or of one only of these cavities, wither without dilatation. Sometimes the ventricular cavity is itself contracted. 2dly, The ventricular partition has often presented a solu- tion of continuity of more or less extent. 3dly, The arterial canal remained open in some sub- jects. 4thly, In one of the cases reported by iM. Gintrac, the two auricles (imperfectly di- vided) opened into the right ventricle: the latter being very large, communicated freely with the left, which (narrow and without auricular oiifice) gave origin to the aorta. 5thly, In another case, the aorta and pulmonary artery sprung from the lett ventricle, the right being almost obliterated, and the inter-auricular partition perforated, bthly, In another instance, the opening of Botal was preserved ; the aorta disappeared after having supplied the cephalic and brachial trunks; the pulmonary artery, receiving the blood from both ventricles, formed the descending aorta. 7thly, Such a tiansposition of the larger arterial trunks has been witnessed, as the aorta springing from the right ventricle, and the pulmonary artery from the left ; the opening of Botal and the arterial canal still remaining, or only the latter. 8thly, In some cases the heart consisted only of one auricle and one ventricle. 9thly, Two superior venaj cavas were seen, the one opening into the left auricle. It is unnecessary here to enlaige upon the other lesions noticed in persons afHicted with this complaint, because they do not neces^arIly belong to the subject. 9. iii. As respects the relation hetiveen ihesynt- ptoms and lesions, M. Bouillaud remarks, that the alterations pointed out in the central organs of circulation have usually the effect of perniilting the black blood to mingle with tiie red ; but some of these lesions, as previously observed, such as the opening of Botal, do not necessarily entail this admixture ; for which reason they are not invariably accitmpanied by blueness of tiie integu- ments; either the black blood not having mingled with the red, or the mixture being insufficient to jiroduce the bluish colour. Hut when the arterial canal remains upon ; when the aorta s|>rings from both ventricles jointly ; or when, to the commu- nication between the right and left cavities, is superadded an obstacle to the free current of blood in the former ; a considerable quantity of black blood must necessarily mix with the red. BRAIN — Alteratio Whenever an abnormal communication between the cavities of the right and left divisions of the heart co-exists with an obstacle to the circulation of the blood in the right ventricle or in the pul- monary artery, the mixture of the blood is not the sole cause of the discolouration of the skin, the puffing of certain parts, of various serous con- gestions, &c. In fact, it is evident, that the impelled circulation contributes mainly to the production ol these phenomena. Should we not also attiibute to the contraction of the auriculo- ventricular, or ventriculo-pulmonary orifices, the bellows sound and the purring tremor remarked in some patients? However this may be, some of the lesions coincident with blueness of the teguments are invariably congenital ; while others (such as the communication between the right and left regions of the heart) may be either con- genital or accidental. 10. iv. The causes which develope most of the congenital lesions, from which blueness may ensue, are not easily determined on. But a com- munication between the right and left cavities of the heart may be occasioned by ulceration of the auricular and ventricular partitions, or by the rupture of these partitions, especially of the au- ricular, in violent and lengthened efforts. An obstacle to the course of the blood through the right auriciilo-ventricular, or the ventriculo-pul- monary orifice, may also, particularly in the early stages of life, induce an abnormal communication between the two auricles, by ungluing, as it were, the valvular laminae, which, by their agglutin- ation, have obliterated the opening of Botal. The existence of a similar ol>stacle at an intia-uterine period of life, when the opening still remains, may be also deemed a sufficing cause for its ulti- mate non-obliteration. (^Dict, de Mtd, et Chiruig. Prat. t. vi. p. 7.) 11. J am of opinion, not only that such ob- stacles have very generally existed during intra- uterine life, and been the cause of the blueness observed afterwards, but that they have also occasioned, during foetal existence, a permanent state of distension ; and thence, in some respects, malformation of the capillary system, particularly in the cutaneous and mucous surfaces, favouring congestion, and languid circulation through them after birth, and the consequent blueness, and the puffiness that generally attends it. 1 may add, as a matter of diagnosis, that very intense and ge- neral blueness is not uncommonly produced by the incautious and internal use of the nitrate of silver. I have observed two or three such cases, and others are recorded by Ai.bers, Roget, &c. (JMed. Chir. Trans, vol. vii. p. 284.) 12. II. Treatment.- — Art is of liitle avail in this malady. We must chiefly depend upon the efforts of nature in bringing gradually about a change in the lesions on which it depends; and attempt to assist her efforts, by directing bodily and mental repose, and a pure, mild, dry, equable and somewhat warm air ; by attending strictly to the stale of the biliary and other secretions, and the digestive functions; and by recommending gently tonic medicines, with an easily digested and nutritious diet. During the paroxysms, INI. BouiLi.Ai'D recommends blood-leiting, — a prac- tice which is by no means warranted by my experience. Depletions, and all other lowering means, aggravate the symptoms, and seldom or NS IN ITS MEJIBBANrs. 201 never succeed in removing the severity of the par- oxysms, for which he advises them. I have derived more advantage from stimulating pedi- luvia, frictions of the surface of the body and lower extremities, and the administration of gentle antispasmodics and stimulants. (See F. 348.424. 663.) In one or two instances, I conceived that some advantage was derived from the preparations of iron combined with the fixed alkaline carbo- nates. (See also F. 94. 662. 718. 920.) BiBLiOG. AND Refer. — Hunter, Medical Obsprvat. and Inquiries, vol. vi. p. 299. — Ferrus, in Diet, de Med. t. vi. p. 29(5. — Good, Study of Med. t. iii. p. 482. — Gin/rac, Observat. et Rerhe.ches sur la Cyanose, &c. Paris, 1824 Louis, Mem. sur la Commun. des Cavit. Droites du Coeur avec les Cavites Gaiiches, Archives Gen. de Med. t.iii. pp. 32?. 48.5. ; et Mem. et Hecherches Anat. Pathol. p.SO\. — Buvillau(l, Diet, de !Vled. et Chirurg. Pratiques, t. v. p. 1. — Crampton, in Trans, of College of Phys. Dublin, N. S. vol. i. p. 34. BRAIN AND MEMBRANES— Diseases OF, SvN. '£yx£<(>aXoj, Gr. Cerebrum, Eiicephalnn, Lat. Cerveaii, Eticephate Fr. Das Him, Ge- hirii, Ger. Cerebro, Ital. Classif. Special Pathology and Mor- bid Structures. IV. Class, III. Order (Author, see Preface). 1. With the view of avoiding unnecessary re- petition, and of furnishing a complete account of the changes and morbid phenomena connected with the parts contained within the cranium, alterations of structure will be considered in the first place, and in systematic connection ; and, af- terwards, inflammations affecting either the brain, or its membranes, will receive attention. As similar lesions develope themselves in the brain, or its membianes, in the course of a variety of diseases ; and as many of those v\ hich are most commonly found upon dissection give rise to very different phenomena during life; their arrange- ment in a separate form will facilitate reference to them, when those specific states of disease, which they either originate in, or occasion, are being discussed. I'hus tumours formed in the brain, or purulent matter secreted there, or in- duration or softening of the cerebral substance, &c. are not infrequently found in cases of either palsy, epilepsy, insanity, or encephalitis, without limitation to any one of them. Instead, however, of describing these and various other lesions, when considering each of these diseases, I shall here give a minute description of the morbid structures observed in the brain and its mem- branes, and refer merely, when discussing these anrl other diseases implicating the cerebral functions, to those clianges most commonly found on dissection of fatal cases, as they are described in this article.' 2. Of all the organs of the body the brain is the most exquisitely and incomprehensively form- ed, and presents the least intiniacy of connection between the results of dissection and the pheno- mena of disease. The most violent symptoms rtferrible to this orj^an often exist during life ; and yet, on the most careful examination, after death, either no appreciable lesion, or none sufli- cient to account for the phenomena, can be de- tected. Whilst, on the other hand, many and most (important changes are frequently discovered in both the brain and its membranes, in cases which betrayed either no cerebral disorder, or none calculated to excite suspicion during life of any organic change. It is extremely important to be awaie, not only of this fact, but of the cir- 202 BRAIN — Alterations in its Membranes. cumstance just alluded to, that the same irorbid a|-vpearances, or, at least, states so nearly alike that they cannot be distinguished, will frequently be found after maladies very dissimilar as regards their cause, nature, and consequences, 'i'hus, irritation of the brain occurring in the progress of fevers, and the exanthemata ; convulsions, in- sanity, drunkenness, puerperal derangements, me- tastasis of gout, and various other diseases, will be attended wiih congestions, injection of the blood- vessels, secretions of lymph or serum, or of air between the membranes, &c. — states in every respect similar to those proceeding- from idiopa- thic inflammation. Nor should it be forgotten, that the kmd of death, the particular circumstances attending it, and the positions and changes to ■which the body is subjected immediately after- wards, tend very materially to influence the ap- pearance and slates of the parts within the cranium. Jn the view which I am about to take of the principal lesions of structure afFecting the ence- phalon, I shall /i'rst notice the morbid states of its membranes ; next, the lesions presented by its sinuses and other blood-vessels; and, lastly, the diseased appearances of the different parts of the encephalon itself. 3. I. Morbid States of the Membranes of THE Brain. — 'I'he intimate connection which the membranes of the brain have with the cranial bones on the one side, and the brain itself on the other, and their expansion between both, render them extremely liable to participate in all the malformations, diseases, and external injuries of those parts. Whilst they most commonly, with the limpid fluid exuded between them, separate those parts, and facilitate the motions of the lat- ter, they also often prevent the extension of mor- bid action from the one to the other. But they do not always succeed in thus limiting disease ; for they frequently become secondarily affected during maladies commencing either in the skull or the brain ; and, when thus involved, they, in some measure, become the medium of mutual infection. But the membranes are not only thus secondarily affected ; they are also not infre- quently themselves the primary seat of disease ; and when such is the case, the parts on each side of them, particularly the brain, seldom fail of participating more or less in the disturbance. Thus we often find them the primary seal of congestion, and of inflammation, with their consequences, as efl^'u'sion between them of various kinds of fluids; and the source whence disea-^e has extended to the brain itself. I'hose changes are presented to our view, not only in the primary inflammations of the membranes, but also in several forms of fever ; in morbid afl^ections of the mind, tetanus, delirium tremens, convulsions, epilepsy, apo- plexy, palsy, and other diseases, wherein we have reason to sup])ose that the brain itself is either primarily and principally affected, or participates largely in the morbid states of its envelopes. 4. i. The Dura Mater is often found un- iianalUj adherent to the cranium, even when the brain and its membranes have been quite fr(^e from change, but more commonly when chronic disease lias existed in either the one or the other. It is aUo sometimes slii^lulji adherent to the skull, and occasionally this want of adhesion is very remark- able. In some instances, the dura mater is sepa- rated entirely from a portion of the cranial bones. In some rare instances, the space is filled with a icatery Jiuid ; but this has only been met with in hydropic children. The separation is generally the result of external injuries ; and either blood or pus, or even both, is usually found in the space between the bone and the membrane. Jn some cases, these effused fluids, particularly blood, either fluid or in coagula, are in considerable quantity, occasioning the usual symptoms depend- ing upon pressure. Lymph, in various degrees of firmness, is also found between a part of the dura mater and the skull ; and this, as well as jms, with which the lymph may be partially mixed, are generally the result of inflammations conse- quent upon external injuries. These appear- ances have been sometimes observed in fatal cases of epilepsy, but only when the patient has re- ceived some injury during the paroxysm. They are often connected with a pufl'y swelling of a corresponding portion of the scalp. 5. The dura mater itself may be here viewed as two membranes, closely united throughout by means of fine, close, cellular tissue : the exterior, or that applied to the cvanial bone-:, resembling m structure, and performing the office of, perios- teum ; the interior, or unattached, being a reflec- tion of the arachnoid, and having, as respects its functions, a more intimate relation to the included organs : the former being a fibrous, the latter, a serous membrane. 6. A. — a. The Jihroiis structure of the dura mater is frequently more than usually vascular, particularly in fatal cases of apoplexy, paralysis, fever, with cerebral symptoms, epilepsy, and in the congestions which occur in the last stages of whooping cough, pulmonary diseases, asphyxia, and poisoning by narcotics. This state is, how- ever, very different from inflammation, as the minute capillaries do not present the same degree of redness, particularly in the unattached or arach- noid surface. This structure is sometimes tinged with bile, and of a deep yellow colour through its whole extent, as in cases of acute jaundice, which are attended with comatose symptoms. After contusions, or when suppurations exist be- neath or exterior to it, it is either yellow, dusky, bluish, brownish, or even blackish. It is also occasionally spotted with black, in some cases of melanosis. In some instances, this membrane seems distended from fluids effused in the cavities of the brain, or between the membranes ; in others it is apparently corrvgated or collapsed. This latter state generally proceeds from it having been punctured during the separation of the calvarium, the fluid which it had contained having thereby escaped. Bat it is sometimes noticed where no such accident occurs, particularly in extremely emaciated bodies, or in the very aged, when little or no water is collected beneath it. A more than usual dryness and iraiispurency is occasionally observed in this as well as in similar structures. Unusual dryness is also sometimes conjoined with a shrivelled state, and deficient transparency. Otto thinks that this is one of the remote efTects of inflammation. 7. h. It is but rarely inflamed, excepting from external injuries, and then generally in circum- scribed patches of greater or less size. In these cases, the injection and redness are very remark- able, particularly in the vicinity of purulent form- ations and injuriesof the bones, or where ulceration BRAIN — Alterations in its IMembranfs. 203 tliscoloration, fractures, abscesses, &c. exist in its vicitiity. Suppurations, in which tlie pus is found between its lajers, or on its outer surface, are very rare. Cases, however, are referred to by Otto of this occurrence. When suppuration does occur, it is g;enerally seated in its inner sur- face. In some of these cases, the purulent matter has eroded, and perforated the skull and layers of the dura mater exterior to it. Thickening of the dura mater is not an u usual result of chronic Slates of inflammation. It varies extremely in t. HoorER.is seldom or never observed in this situation,' although frequently in other parts of the encephalon. A case of it, however, oc- curred to Dr. Duncan. The u<;ephalocyst, or headless hydatid, has been found connected with the arachnoid of tiie dura mater, in a very few cases. 18. £. The CAi'SF.sof malignant, or constitutional tumours in the dura mater, are generally external wounds or contusions, concussions, the scrofulous or syphilitic taint, and most commonly previously existing di-^ease of a similar nature in other parts of the body, 19. ^. The Symptoms by which their existence may be inferred are extremely equivocal. At the early periods of their growth, they frequently give rise to little or no disturbance. JMuch, how- ever, will depend upon the rapidity with wliich they are formed, and their situation. When they grow slowly, the portion of brain becomes gra- dually accustomed to, and as it were, insensible of, the pressure ; it seems to waste ; and if this compressed and atrophied part be not indispen- sable to the free exercise of the sensorial, intellec- tual, and locomotive functions, the disease pro- duces no evident or sensible indication of its existence. But sooner or later the compression produced by them on the brain, or the irritation occasioned in the membranes, gives ri«e to effects of the most serious nature. These chiefly consist of paralysis, epileptic convulsions, and apoplexy, occasionally occurring as suddenly as in the san- guineous forms of these diseases ; but frequently in a more or less gradual manner. When the tumour is situated in or near the base of the brain, the symptoms, whether those of compression or of mental disorder, generally supervene rapidly. jMost commonly, however, sensation and volition gradually disappear from the limbs which corre- spond with the compressed portions of brain ; the intellectual powers are obscured, and the patient soon becomes hemiplegic and idiotic. The gra- dual accessions of hemiplegia, and of the other symptoms of compression, generally indicate that the paralysis arises from the developement of a tumour, rather than from the formation of an apoplectic effusion of blood. The .frequent oc- currence, also, of acute pain in the paralysed limbs, of epileptic movements, antecedent cepha- Lxlgia of a violent character, with obscuration of the intellectual powers, somnolency, a cachectic iiabit of body, or the occurrence of disease in other parts of the body calculated to taint the system, as the scrofulous, syphilitic, carcinoma- tous, or fungoid diseases, are also circumstances indicating the formation of tumours in the mem- branes of the brain. 20. These tumours usally give rise to further disease of the brain, or its membranes, before terminating life ; such as inflammation of the parts adjoining, effusions of fluid beneath or betweefi the membranes, adhesions of their opposite sur- • faces, destruction of the bones, softening and. pulpy destruction, &c. of the cerebral substance; sanguineous effusion in this situation : and these increase the severity of the symptoms, and hasten the fatal termination. It should, however, be kept in recollection, that the effects produced by these tumours have in general no relation to their bulk. One of the circumference of one or two inches will often occasion (the situation and nature of the tumour being the same) as violent effects as an- other of four or five inches. It is, moreover, not to the tumour'itself that the symptoms are to be imputed, but to the effects it produces on the brain and membranes. ^ 21. ii. Morbid Changes of the Arachnoid and Pia INIater. — A. The Arachnoid is kg delicate, perfectly transparent, and so intimately adherent to the pia mater, except at the base of the brain, as to admit with difficulty of separation from it. That lesions, therefore, of the latter membrane should aflfect also the former, cannot be a matter of surprise. Indeed, the greater number of changes which I shall have to notice in this section generally invade both these mem- branes simultaneously, although either of them may be affected in a more or less marked de- gree. 22. a. Infiammatory action gives rise, though very rarely, about the optic nerves and between the lobes of the cerebellum, to small patches of beautiful vascularity in the arachnoid; the sur- rounding portions of this membrane being opaque, and adhering to injiamed parts of the pia mater. It is, however, very uncommon to find, even in the most intense inflammation of these mem- branes, red vessels in the arachnoid. The most frequent results of inflammation in this situation are, thickening, and the effusion of a watery or serous jiuid under it, raising and separating it, in places, from the pia mater, particularly in the intergyral spaces. The fluid secreted in this situation is generally transparent, but it is sometimes turbid and albuminous, occasionally opaque, and tinged with bile in jaundire. In rarer cases it is tinged with blood. Thickening, and opacity of the arachnoid vary much in degree. They are occasionally so great as to obscure the vessels and membrane underneath it. Less fre- quent than the foregoing is the secretion of a pnriform matter, under the opaque and thickened membrane, giving the appearance of a diffused suppuration ; and still more rare is the deposit of Jihrinous lymph unless in a state nearly approach- ing to an albuminous substance, or a puriform fluid. 23. h. The effusion of a serousjluid, in excessive quantity, exterior to the arachnoid of the pia mater, and in the bag of the arachnoid coat, around the encephalon, forming dropsy of the cerebral membranes, is sometimes observed. It has been fully demonstrated by M, Magendie, and confirmed by other inquirers, that this mem- brane secretes a fluid in health, varying some- what in quantity with the state of the brain, and of its circulation ; that this fluid cannot be mate- rially diminished, or entirely deficient, without morbid phenomena being produced ; and that it may, in disease, not only be secreted in too large 206 BRAIN — Alterations in its Membranes. ^ quantity, but also in modified quality. In some cases of chronic and congenital hydrocephalus, particularly when accompanied with spina bifida, the effusion is chiefly in this situation. In those, it is usually pellucid, and the arachnoid is not materially changed in its appearance. In more rare cases, however, this fluid has been observed somewhat turbid, as well as excessive in quan- tity ; and the arachnoid opaque and thickened. In these, it would seem to have proceeded from increased vascular action iiffecting this membrane and the pia mater. Effusion of a watery fluid, how- ever, in this situation, is much less frequent than in the ventricles. It is commonly congenital and chronic in these latier cases ; and it sometimes protrudes the membranes, in large watery tu- mours, through apertures in, or between, the bones of the head. Several cases of this kind have occurred to me in the Infirmary for Chil- dren. In dropsy of the ventricles, which is most common, producing almost all the large watery heads, the fluid is collected in the bags of the arachnoid and vascular membranes Iming the cavities of the brain, so that it is contained, either in all, or the greater number of them, at the same time, which is most frequently the case ; or in one cf them only. Serum effused from the arachnoid and vascular membrane (pia mater) may thus be situated : — 1st, In the sub-arachnoid cellular tis- sue ; that is, between the arachnoid of the pia mater and this vascular membrane : 2d, In the great cavity of the arachnoid around the encephalon: 3d, In the different ventricles, and even in the cavity between the two folds of the septum luci- dum (Breschet). The quantity of serum effused in these situations varies remarkably. In cougeni- tiil and chronic cases, it is sometimes uncommonly great, filling uj) and distending enormously the cranial cavity ; impedins' or arresting the de- velopement, altering the form, and even injuring or destroying the texture, of the cerebral sub- stance, which is expanded in the form of a sac; that part of it above the ventricles sometimes con- sisting of the meninges merely. In acute ln/dro- cephaliis, the effusion takes place in a few days, and to a much less extent; and in serous apoplexy it may occur in a few hours. In these latter dis- eases, however, it is often a matter of dispute, whether the symptoms are more the result of the effusion, or of diminished vital endowment, and the state of circulation of the brain. (See Dropsy of the Kncephalon.) ^ 24. c. Drijness of the arachnoid is occasionally found after cases of excessive cerebral irritation, and where inflammatory action has been sus- pected. 'J'here can be no reason wherefore defi- cient secretion should not sometimes occur here, as well as in other serous membranes, as a result of inflammation. Aminctuous state of the arachnoid is j?ometimes observed, particularly after erysi- pefas, absce.ss of the brain, discharges from the ear, paralysis, &c., and other states of disease, in which there was reason to infer the existence of inflammatory irritation of the membranes of the brain. Adhesion of the arachnoid to the opposite surface of the dura mater, by means of a cellular or firm albuminous false membrane, &c. have been already described (§ 13.). Dark carbon- aceous deposits, similar to those noticed (§ 14.) in 'he iTilernal liriinj? of the dura mater, are also rarely observed in lire arachnoid and pia mater. Osseotts deposits also occur in the arachnoid, and are likewise rare. 25. B. The Pia Mater partakes in all the inflammatory states, and their consequences now described in respect of the arachnoid. — n.The vas- cularity of this membrane varies greatly. Some- times it consists chiefly of engorgement of its veins, imparting to it a dusky or purplish hue, without any sign of inflammatory or other change. Occasionally this congestion is attended with in- jection of the arteries, and increased redness only, or with these in conjunction with one or more of the lesions now referred more immediately to the arachnoid. 26. b. Slight effusions of blood', and patches of ecchymoses, varying from the size of a split pea to that of a half-crowt), are occasionally found lying upon the suiface of the convolutions, and retained between the meshes of the pia mater. This state arises from concussions of the brain, and conges- tions consequent upon suffocation, poisoning by narcotics, and the advanced stages cf disease ; also from obstructions in the vessels returning the blood from the brain. A layer oifihrine is some- times, but rarely, observed as a consequence of effusions of blood between the pia mater and brain ; the serum and red particles of the effused blood having been absorbed, and its fibrine remaining. 27. c. Thepi'a mater a.nd arachnoid are occasion- ally separated from the convolutions in consequence of concu.ssion ; and in some cases, particularly after acute or recent inflammations, they may be removed from the cerebral substance with scarcely any force, or with much less than in health, the vessels being loaded with blood. Otto thinks that the easy separation of the vascular membrane from the brain originates in the effusion of lymph beneath the membrane, loosening its connection to the cortical substance. On the other hand, after chronic inflammation, occurring without effusion under the membranes, but with a considerable effusion into the ventricles, they are often found so closely adherent to the convolutions, that they cannot be separated, but in very small frag- ments, and then not without bringing away with them portions of the cineritious substance of the brain. 28. rf. Patches of yellow albuminotis, oralhumino- purij'orm matter, are sometimes found on the up- per surface of the pia mater, between it and the tunica arachnoidea. These patches are usually small; but they are occasionally very large, and diffused over nearly the whole of one hemisphere. Dr. Hooi'Eu has observed them covering nearly the whole of the base of the brian, so as to en- velope most of the nerves. 'i'his appearance seems to result from a more than usually inten.se state of inflammation, as all the membranes are found inflamed, and the blond-vessels loaded with dark blood, and to differ but sliglitly from the effusion of pus and lymph already described in connection with changes of the arachnoid. Ulceration and mortification are very rare conse- quences of inflammation of the pia mater. They may, indeed, be rather considered as superficial ulceration and gangrene of the brain. Cases, however, have biicn met with, sometimes con- nected with superficial suppuration, aifecting chiefly this membrane. (Buzzi, Morgagm, Du- nn i:vii,, Ottj.) 29. e. Tumours often grow from the ^pia mater. BRAIN — Alterations in its BIembranes. 207 The scrofulous kind of tumour or tubercles are not very rare ia this situation. When they occur, they sometimes reach a large size, and break down into a puriform fluid, forming circumscribed or encysted abscesses on the surface of the brain. Leiveille found them as large as an egg, in an idiot. Cases are also described by Earle, Aber- CROMBiE, Otto, and others. Tumours •>/ a sub- curtilaginous structure are very rarely met with in the pia mater, although occasionally in Ihe choroid plexus. They are usually of the size of q pea, round or oval, laminated cartilaginous, in the centre, exteriorly tuberculous, and covered with a delicate vascular membrane. ^ 30. True encijsted tumours are also sometimes met with in the pia mater. Otto describes one of immense size, — six inches long by three broad, — found on the right hemisphere of the brain of the Duke of Saxe-Gotha. Esquirol met with a tu- mour of this kind containing fat ; and similar in- stances have been recorded. Ossijic deposits and eurthii concretions have been rarely ob^erved on the internal surface of the pia mater, dipping down into the structure of the brain. 31.J'. Serous cysts, the hygroma of Dr. Hooper, consist of a delicate and transparent membrane, filled with a clear, limpid serum. There is in some cases only one, in others two, three, four, or even more. When solitary, they vary from the size o£ an orange-pip to that of a walnut ; but they are seldom much above the bulk of a large pea. When numerous, they are usually much smaller. They are very rare in the membranes of the exterior surfaces of the brain ; but they are very common in the choroid plexus, where they are frequently in clusters. They have been mis- taken for hydatids, but are merely simple cysts, containing a serous fluid. J'hey have likewise been found in the adventitious membranes formed on the surface of the brain. They generally fur- nish no symptom by which their existence can even be suspected during life. — The acephalo- cyst, or headless hydatid, is seldom or never found in the pia mater. Five species of the Cysticercus, or the bladder-tailed worm, namely, the C. tenui- coUis, the C. Fischerianus, the C. dicystus, C. punc- tatns, and the C. Finna, have been discovered re- spectively by Brera, Fischer, Laennec, Treut- i.er, and Werner, either in the pia mater or choroid plexus. (Art. Cysticercus, Diet, de M£d.) 32. g. Fungoid, hxmatoid, and other malignant tumours, are sometimes found in the pia mater and arachnoid ; but I believe they are seldom or never met with as a primary disease, but asso- ciated, as a consecutive change, with fungoid or malignant disease in some other part of the body. When they grow to any considerable size, they be- come deeply indented into the convolutions; pro- ducing at fiist irritation, and afterwards, as they increase, symptoms of pressure. When, there- fore, such phenomena present themselves, in per- sons with fungoid disease, we may suspect its de- velopement also in the brain. 33. C. The Choroid Plexus, and the vascular pleius of the fourth ventricle, which are all pro- ductions of the pia mater, are often found remark- ably distended with blood, and their vessels varicose, particularly when the pia mater has its vessels overcharged. The choroid plexus is also some- times uncommonly pale and exsanguine. This ge- nerally occurs when consideiable effusion of serum has taken place in the ventricles, especially when the eflTiision is connected with debility. Some- times the plexus contains a number of transpa- rent vesicles (see §30.), and it occasionally pre- sents a granulated or Jieshy appearance. This has been ascribed to a morbidly enlarged state of the glandular apparatus, with which, in the opinion of some anatomists, this structure is naturally provided. Gelatinous tumours about the size of a bean, and surrounded by a cyst, have also, though rarely, been observed in this situ- ation. Tumours of a cheesy or sub-cartilaginous consistence, the size of a pea, are likewise found, in some rare cases ; and occasionally these tumours contain ossijic deposits in their centres. Bony and earthly concretions are still more rarely met with in the choroid plexus than in the membranes. All these morbid changes have been most frequently observed in apoplectic, epileptic, and paralytic cases; but they have also been frequently de- tected where no particular symptom referrible to the nervous system had manifested itself during life. 34. The membrane ivhich lines the ventricles is naturally extremely thin and transparent. No blood-vessels, excepting those which ramify over the corpora striata and thai ami from their trunks, which pass by the side of the tagnia semicircularis, are usually observed in it. The vessels, however, of this membrane are sometimes found much en- larged, and gorged with blood, particularly when afluid is collected in the ventricles, so as to distend them beyond their natural capacity. In this state the membrane is not only more vascular, but also much firmer and thicker than natural. The sep- tum lucidum is sometimes as thick as the dura mater, and very firm ; but more commonly, those parts of the membrane which are thickened and rendered opaque, are also soft and pulpy. 35. Coagulated albumen is occasionally found on the surface of the ventricles. It is sometimes met with in layers on the corpus striatum and the thalamus. I have found it of great thickness: and in one case, which recently occurred to me at the Children's Infirmary, it nearly filled both ven- tricles. Ulceration proceeding from inflammation is occasionally met with in this surface, particu- larly in the corpus striatum. It seems generally to arise from the formation of a small abscess or purulent collection under the membrane, which it ruptures, the fluid thus escaping into the ventricle. 36. D. Injlamed states of the Pia JNIater, with or without ulceration, puriform secretion, &c., are, as well as other lesions of this description in other parts of the brain, most frequently occasioned by external injuries. Inflammatory irritation, affecting the arachnoid and vascular membrane either of the periphery of the brain or of the cavities, is not an unusual consequence of injuries of a serious cha- racter sustained in other parts of the body, as after compound fractures and contusions of the limbs and joints, severe burns, 6lC. In these cases, a similar state of the membranes, as well as a nearly simdar kind of delirium to that which has been called delirium tremens, sometimes occur. Inflam- matory states, either with dryness of the membranes, but more frequently with effusions of various kinds, often taken place in the progress of acute diseases, particularly fevers, and the exanthemata ; from drunkenness, accidents, concussions, or men- tal excitement J whiUt congestions, effusions, and 208 BHAIN — Morbid Anatomy ok its Sinuses. infiltrations of blood, proceed generally from in- terrupted circulation through the heart and lungs, narcotic poisons, asphyxia, &c., and frequently are attended with convulsions, stupor, coma, para- lysis, &c. The adventitious formations are usually the result of a cachectic habit of body, as scro- fula, deficient vitiil power, and the vitiation of the system by syphilis, and the cancerous or car- cinomatous taint. 37. iii. Lesions of the Sinuses of the Dura Mater, and Vessels of the Brain. — a. Inflam- mation of the sinuses is sometimes observed, in its advanced stages and consequences, and but rarely at the early periods. In this latter case, they ma- nifest chiefly increased vascularity, and ledness of their internal lining, with slight tliickening and fri- ability, sometimes with softening, and occasionally with abrasion, and give rise to the following changes, seated immediately within the part of the vessel which is inflamed : — 1st, To the coagu- lation of the blood in contact with, and its ad- hesion to, the inflamed surface of the vessel : 2d, Subsequent discoloration of the coagulum, and its conversion into a state nearly resembling that of coagulated lymph : and, 3d, The presence of pus, which is usually found in the middle of this coagulum, though not always. Thickeni)ig of the membranes forming the parietes of the sinuses is occasionally remarked, and is evidently a result of a slow stale of inflammatory action, aflPecting chiefly the fine cellular (issue connecting the se- rous lining to the fibrous membrane. Sometimes their parietes are remarkably thick and dense, almost approaching to cartihge, this morbid change being chiefly seated in their connecting cellular substance. Firm Jihrinmis formations, or coagulated lymph, are also occasionally formed in these vessels ; in some cases, conjointly with marks of inflammation in them ; the internal tis- sues of the vessels being red, injected, congested, and of a dark colour; and in others without any very marked appearance of such disease, but with evident thickening of their parietes. In several instances I have observed these formations dis- posed in the form of false membranes within the sinuses, and adherent to their serous lining. While the more exterior surface of these false membranes, or that next the vessel, is generally firm, the interior of the canal which it forms is soft, and contains a purulent-like matter mixed with a concrete albuminous substance. 38. In other instances, no fibrous concretions are formed, nor is the vessel perceptibly inflamed, and yet pus is found in parts of the sinuses, either distinct and in considerable quantity, or mixed with firm coagula, or with clots of blood, and in small quantity. In these cases there is reason to suppose that pus has been carried by the veins into this situation from an adjoining part. In some cases it occurs accompanied with an albu- minous-like eflTusion, more or less concrete, or with firm fibritious coagula, and an inflamed state of the internal membrane of the vessel. In many, the presence of pus is coimected with an apparent abrasion, and even ulceration of the internal surface of the sinus; but in others, increased vas- cularity, with patches of deep redness, or of con- gestidn, with a deep lividity, and occasionally slight thickening with diminished cohesion of the parietes of the vessel, are most remarkable. In all these, there can be no doubt that the puriform fluid is deposited in this situation from the sur- rounding inflamed parietes of the vessel. 39. The lesions now described are most fre- quently connected, in adults, with chronic disease of the bones of the cranium ; and, in rarer in- stances, with disorganisation of the brain itself and of its membranes. They are most frequent after fractures of the skull, and external injuries : and I believe that they are occasional consequences of the worst forms of erysipelas of the head ; a case of this description having occurred to me, in which inflammation of the sinuses of the dura mater was found upon dissection. They are more common in children, according to my experience, than in any other class of patients; particularly from the age of one and a half or two years to ten or twelve. I have observed the appearances now described in several cases of cerebial disease; or, at least, of cases terminating with the usual symptoms of pressure on the brain, following severe states of porrigo, ulcers of the scalp, and chronic diseases of this structure, particularly in scrofulous, weak, and ill-fed children. The ob- servations of M. ToNNELLE and of M. Rinis fully agree with my experience as to the pathological relations of these lesions of the sinuses. The sinuses also present a vermilion colour of their in- ternal membrane, like that which is sometimes found in the arterial system. This appearance is most probably caused by a morbid state of the blood ; and it may be, on some occasions, a post mortem change, arising from the staining of the internal surface of the vessels by the colouring part of their contents. 40. h. In respect of the state of the hlood itself in the sinuses, much diversity exists : the quantity contained by them also varies greatly. More fre- quently they are empty, or nearly so. When they contain blood, it is in some cases dark, semi- fluid, or thick ; in others, less dark, and more fluid ; in the greater number, either altogether or partly coagulated. In a few, it is separated into a serous or sero-sanguineous fluid, and a fibrinous coagulum having no connection with the parietes of the vessel, the coagulum consisting entirely of the fibiine of the coagulated blood, and not of the albuminous fibrine, or coagulated lymph, already described (§36.). In some cases, one or more of the sinuses is filled with a dense, firm, and brown coagulum, peifectly continuous through- out ; branching even into the veins which open into the sinuses ; and not interrnpted, soft, and forming variously-sized clots, such as are often found after death. This state of the contents of the sinuses is seldom or never connected with in- flammation of its parietes, unless the inflamma- tion has occasioned, by means of the albuminous matter effused, a complete obstiuction of the vessel, and, consequently, the accumulation and gradual coagcliition of the blood beyond it ; being a change in these fluids independent of organic lesions of the parietes of the sinus, unless such lesion occasion obstructed circulation through it. 41. 'I'he firm, dense, and continuous coagulum now described is evidently the result of a slow coagulation proceeding in the sinuses previous to death ; and, in every instance in which 1 have observed it, has arisen from obstruction in the return of blood from the sinuses, owing to com- pression of the jugular veins, by tubercles, scro- fulous tumours, or other organic changes obliter- BRAIN — Alterations of its Substance. 209 ating the canals of these vessels, or of the sinuses themselves; or from a stasis of the blood, fol- owed by coagulation in these vessels, arising in consequence of great cerebral congestion, joined with the utmost general adynamia. There is no doubt that the effusion of lymph, in any of its states, or even of purulent matter, will, while in connection witii the internal surface of an inflamed vessel, or mixing with the blood in it, dispose this fluid to coagulation; forming a nucleus around which coagulation will proceed, or a point from which it may depart. And such seems to be the source of the more or less extensive and continu- ous eoagula, which we frequently find in connec- tion with inflammatory lesions and formations in he sinuses. But such is not the case here. In the course of an extended experience at the In- firmary for Children, I have observed, in several cases, that this state of dense coagulation of the blood in the sinuses manifestly supervenes before Jealh, owing to the general and local conditions now stated, and gives rise to all the symptoms of more or less complete and sudden compression of the brain, owing to the consequences I am now to notice as arising from it, in common viith other causes of obstruction in the sinuses. In cases of 'his description, if no effusion of blood have occurred, the veins are found generally engorged wiih dark blood. In some ca>es, the distension of the veins had given rise to an exudation of ilood, or rupture of several of their minute dis- ributions, with copious extravasation of this fluid ; And in many, the distension of the veins was accompanied with copious effusions of serum in the ventricles, between the membranes, or in both situations. 42. c. The glandulce Paccliioni are sometimes so much increased in number and size as to obstruct the passage of blood through the sinuses; give rise to the appearances now described ; and thus, IS the other changes in the sinuses, terminate in some one or other of the apoplectic states. JMr. Earle (Medico-Cliirtirg. Trans, vol. iii. p. 66.) has observed these glands changed to the ap- pearance of grumous blood, in connection with fungoid disease in the brain. I'hey are more frequently enlarged and hardened ; and, occa and the vessels departing from it, as well as the arterial ramifications which appear between the convolutions, and come out upon the suiface, often participate more or less in this morbid state. CurtiUiginoiis degeneration is still more extensive, and seems to ))recede the ossific deposits. Car- tilaginous, ossific, and atliercnnitous formations in the coats of the arteries of the brain occasion irre- gular distributions of blood, and interrupted or imperfect supplies of this fluid to some parts of the organ ; disposing to aneurismal dilatations, to rupture, and, consequently, to the production of apoplexy and paralysis. In most instances of ex- travasation of blood in the substance of the brain, these conditions of the arteries exist; and are, most probably, the causes of the extravasation, by disposing to congestion, and rupture from in- creased action of the heart. 46. g. Aneurismal dilatations of the arteries of the encephalon are by no means very uncommon : they are most frequently met with in the carotids after they have entered the cranium, in the large blanches, and in the basilar artery. They may de- range the circulation of the brain, or may occasion effusions of either blood or serum, without them- selves having been ruptured ; but they more frequently break, occasioning apoplexy. I'he ar. terics, particularly those about the base of the brain, and some part of the branches forming the circle of Willis, are also occasionally obliterated and reduced to a thin chord. 47. II. Lesions of the Substance of the Brain. — The morbid states of the brain have been investigated in modern times with the greatest success and advantage to practical medicine. The labours of Reii., Serres, Lallemand, Wenzel, Gall, Rostan, Aeercombie, Hooper, Craigie, and Duncan, have chiefly tended to this advance- ment ; whilst a number of other enquirers have added much of importance, as well as confirmed the observations of more original enquirers. 48. i. Inflammation of thf. Substance of the Brain, — Encephalitis, — Cerebritis — A. Acute inflammation of the brain does not frequently occur as an idiopa'hic or primary and uncomplicated malady. It is in consequence of previous disease, as fevers, the exanthemata, inflammations of the sionally, they cause an absorption of the dura j ears, extravasated blood, tumours and tubercles mater, with corresponding depressions in the supei incumbent bone. 43. d. The hands which cross the longitudinal sinus are occasionally more numerous than natu- ■al ; and they are sometimes thickened, particu- larly in connection with a similar change of the parietes of the sinus. 44. e. The veins on the surface of the brain of the brain, of poisons, and external injury, that it comes most frequently before the pathologist. Resulting from injury, it is generally limited in extent, although intense in degree. The whole brain is rarely or ne\ er afl^ected at the same time, but only a part of it; and the disease is seated either in the vascular membrane, or in the cor- tical substance, or in the medullary matter of sometimes contain a few bubbles of air; but it is the interior parts, of the brain, or in them all doubtful whether this is a morbid state or a post simultaneously. 'J he part aflfected first becomes mortem change. They are occasionally filled with I vascular, and the injection of the vessels proceeds fibrine, particularly in those cases which presented \ till the cerebral substance displays a red tint, a corresponding state of the sinuses. Pus has deepening, as the disease advances, until it assumes also been observed in them, especially in cases of inflammation, with secretion of pus under the '■rachnoid. 45. f. Ossification is detected only in the arteries ; but it occurs in them veiy frequently, and to a very great extent, particularly in advanced life. The early stages of this change have also been discovered in youth, although rarely. 'Jhe arte- ries most commonly found ossified are the internal carotids and the basilar; but the circle of Willis, Vol. I. a reddish brown, and, occasi partial: thus he has seen the thalamus opticus of one side of its natural dimensions, whilst that of the opposite side was one fourth larger. This extraordinary developement of the thalamus of one side was not attended with any particular symptom during the patient's life. Otto refers to a number of cases of hypertrophy confined to a single part of the bruin, chiefly to the thalami and the corpora qua- drigemina. I am not aware that any well authen- ticated cases of marked hypertrophy of the cere- bellum are upon record. The spinal chord, however, is not infrequently subjected to this change. 94. Morbid enlargement of the pineal gland has been observed by Drelincourt, Morgagni, LlEUTAUD, DeSPORTES, SOEMMERING, AnGELI, Greding, Meckel, and Blane. The pituitary gland has also been found enlarged, inflamed, and otherwise changed, by Greding, Baillie, Chaussier, Oppert, Ward, Buli.ier, De Haen, Rayer, Neumann, Abercrombie, Otto, the Wenzels, and INIeckel. 95. C, Imperfect developement and atrophy of the brain, — Agen^ne cerebrale (Cazauvieilh), — is met with in every degree, from a slight diminution of the usual bulk of the whole organ, or of any of its parts, to their almost entire disappearance. Atrophy, although occurring in all situations of the cerebrospinal axi^^ is most frequently ob- served in those wiiich are the last formed : thus the sjiinal chord is formed before the brain, and atrophy of it is much rarer than that of the encephalon. Of the brain, the convolutions are the last de- veloped, and they are most frequently atrophied. It should, however, be noticed, tiiat the majority of those cases which are denominated atrophy of the brain by ANnuAi., and other French patholo- gists, are, strictly speaking, imperfect or arrested developement of tiie organ. The hemispheres are most frequently the seat of atrophy and im- jieifect developement ; and they may be thus afl'ected, either jiarlialiy, or altogether. Imper- fect growth of particular lobes, es|iecially the anterior, is common in idiots, and may exist even although the cranium is well formed, the void being filled up with water, the congenital efi'usion of which is the probable cause of the arrest of developement. When the hemispheres are par- BRAIN — Alteiiations of its Substance — Induration. 219 tially affected, the lesion is most commonly ob- seivt'd in the convolutions. 96. a. Atrophy of the convfllinions. — These parts are sometimes only smaller and less numerous than usual, either in respect of one or both hemi- spheres, or in a portion of a hemisphere merely ; and they may be altogether wanting in one, or in both. M. Jadelot lately found the hemispheres of the brain of an idiotic child, aged six years, without convolutions, and consisting of an uniform layer of medullary substance covered by a thin coat of cineritious matter. 97. b. Sometimes the greater part of the hemi- spheres of the brain, especially their superior por- tions, from tiie vault of the ventricles upwards, are found in a state of atrophy, or altogether wanting. Most of the cases of this description which have been adduced by the French patho- logists, as well as the case of Jadelot, are merely instances of imperfect developement of the part. Sometimes this portion of the encephalon is re- placed by a sac containing a serous fluid, having no communication with the ventricles. In other cases, no such body replaces the deficient hemi- spheres ; but the different parts of the anterior and superior aspect of the ventricles, as the thalami optici, corpora striata, &c., may be seen through the membianes, no substance intervening between them and those portions of the floors of the ven- tricles. These occurrences are, however, not cases of atrophy, but of arrest of the formative process as respects the hemispheres of the brain. Cases of diminished size merely, of one or both hemispheres, are more common than those now instanced ; and are generally to be con'-idered as being congenital, or, at least, the result of a di- minisiied nutrition of the part in the process of the growth of the organs. Instances of extreme smallness, or an entire absence of a part of the hemisphere, are most frequently met with in its posterior or anterior lobes: either of which may be altogether wanting, in one or both sides of the brain. Diminished size of the anterior or pos- terior lobes are a inueh more frequent occurrence than their entire absence. 98. c. The thalami optici, and corpora striata, may be also much diminished in volume, either sinuly or together. The diminution may proceed from a defect either of the grey matter, or of the while substance ; and from tliis cause of diminished bulk, the accompanying symptoms will derive their chief characters. Not only may those bo- dies be simply diminished in volume, they may be even altogether wanting, either bfing replaced by a serous cyst, or having no other body as a sub- stitute : in the former case, the hemisphere of that side may be, or not, also entirely wanting ; in the latter it is always absent, and, from the cerebral peduncles, nothing more is found than a few scat- tered fibres, which are spread out into a membra- nous tissue, resembling that which, at the earliest epochs of foetal existence, forms the rudiments of the hemispheres. It is evident, that in such cases, the wiiite central portions of the bram being absent, and both sides of the cerebrum being liius circum- stanced, there can scarcely be said to be any brain in existence. This, however, does not prevent the other parts contained within the cranium, as the mesoceplialon, cerebellum, &c., from being fully formed. 99. d The central white parts of the brain may be imperfectly developed, even when no alteration is remarked in the hemispheres. J a some such cases the corpus callosum is so small as to form merely a thin membrane. Hiil re- marked its entire absence in a lemale idiot, who died at thirty : the two hemispheres communi- cated only through the medium of the anterior and posterior commissures. It is remarkable, that when the cerebral lobes are wanting, two small masses of nervous substance, whence the olfac- tory nerves arise, are sometimes found in the ante- rior part of the cranium ; thus displaying in man, in the morbid state, the independent existence of the olfactory lobes, naturally shown in animals. 100. It will be seen from the above, that all the parts of the brain may present a state of im- perfect developement to a greater or less extent ; that either of them may be entirely wanting, while the others remain; and that all of them may be absent, so that there exists no brain : a circumstance not infrequently observed in foetuses, and evidently owing to the process of develope- ment having been suddenly arrested. 101. But not only may the brain be in part, or entirely, deficient at birth ; it may be aho re- markably small at advanced age, particularly in idiots. It may be generally, but more frequently only locally, diminished by external pressure, as in meningeal hydrocephalus. Although the brain, as well as the other parts of the nervous system, wastes so little in general consumption, it is, how- ever, somewhat diminished, although rarely, in the course of certain dist^ases : Savaresy states, tliat he has found it atrophied in yellow fever. Horn remarked a similar state in diabetes; and Otto, after venereal excesses. Atrophy is, how- ever, more frequently observed in particular parts of the brain. The lateral lobes of the cerebellum, have been occasionally found atrophied. M. Hutix observed the medullary centre of the cei'ebellum reduced one third of its natural size. Morgagni, VVenzel, and Biermaver have described atrophy of the corpora striata. I'he crjUic beds have been found greatly reduced in size after blindness, by Soemmering, JMichaelis, Rudoepiii, &c. ; and in idiots, by Otto, Ramsay, and Romberg. 1 he quadrigeminul bodies and the tnherctes of the brain, have likewise been severally found atro- phied. The pressure occasioned by tumours, collections of lymph, pus, or blood, or even dropsy of the ventricles, gives rise to atrophy, in- terstitial absorption, or destruction of particular parts of the brain. Impaired supply of blood owing to diseased arteries, causes both atrophy and softening. The want of exerci.se of the functions of the nervous system also occasions atrophy, by diminishing nutrition, as an unexercised muscle .soon wastes. Thus, the wasting of the brain so generally observed in idiots, may be the effect and not the cause of idiotcy. The pineal gland, and the pituitary gland or appendage of the brain, have both been seen remarkably atrophied, par- ticularly the latter. According to Otto, this change has been most frequently remarked in idiots, and in hydrocejihalic cases. 102. V. Indiiration, or Hardening of ihe Brain, — Sclerencephalia (Craigie). — The cere- bro-spinal axis sometimes presents, either through- out its extent, or in particular parts, a remaikable increase of consistence. This increase varies in grade. In its ^rst degree, it is nearly of the con- 220 BRAIN — Alterations of sistence of a brain which has been kept some time in dilute nitric acid. Tiie second degree of increased liardness resembles tlie consistence of cheese. In this state, the cerebral substance, when exposed to the action of lire, instead of swelling up, without emitting any marked odour, and leaving a brownish light residue, assumes a horny hardness, emits a strong heavy smell, and leaves a compact blackish residue. Nitrous acid also imparts to it a horny hardness, — circum- stances evincing a great increase of the albumi- nous constituent of the structure. 'J'he third degree of iiardening equals the firmness of wax, frequently also conjoined with elasticity, so that the indurated portion resembles flbro-cartilage. 103. a. "J'heyi'rsi grade of induration may affect the whole or the greater part of the cerebro-spinal axis. The two greater degrees of this change are commonly of more or less limited extent. General hardening of the brain is usually attended with augmented vascularity, numerous drops of blood becoming effused when the cerebral structure is incised. This increased vascularity, although general, is not constant ; for, in some few in- stances, little or no injection of the capillaries is observed, the brain being rather exsanguineous than vascular. Even in the general induration of the brain, the hardening is not equal throughout every part. It is least remarkable in the cortical structure and convolutions; and more manifest in the whrte, particularly the central medullary parts than in the grey substance. 104. b. Partial induration of the brain is most frequently found in its central parts, and some- times in the convolutions. IM. Andral has ob- served it in this latter situation, at as early an age as three years, which is extremely unusual. Sometimes the convolutions of the convexity of the hemispheres are unaltered, whilst those of the base are hardened ; occasionally in such cases, especially when the induration is considerable, the cortical can scarcely be distinguished from the medullary structure. In a case recorded by Lali.emand, the induration was limited to a cir- cumscribed portion of cortical substance, and under it, the medullary texture was manifestly softened. M. Pinel found, in one of the hemi- spheres of a female who had died in a state of idiolcy, a portion of the medullary structure ex- tremely hardened ; and, in the same individual, there existed, in the whole posterior and inferior border of the cerebellum, an induration of a fibro- cartilaginous desciiption. The hardened portion was yellowish, elastic, resembling a piece of whitish yellow leather. JMr. Payin found, in a girl six yeais of ane, near the posterior third portion of the left hemisphere of the brain, a depression, owing to Iiardening of one of the con- volutions, which seemed externally as if it were shrivelled. It was rose-coloured on its surface, slightly yellowish in its substance, and almost concealed from view by two convolutions, which were hciilthy. 'I'lie mciTibranes covering this har- dened convolution were white and thickened. Hardening was here joined to diminution of vo- lume; or, perhaps, the disease of this portion of the brain was congenital, and, whil>t the growth of the rest of the organ had proceeded, the de- velojiemerit of this was interrupted. The intel- ligence of this child was well advanced ; but she had, from birth, a contraction of the right wrist ITS Sl'dstance — Induration. and foot, with slight atrophy, and incomplete hemiplegia of this side. Similar cases of hard- ening of portions of the lobes of the brain are desciibed by JMonho, Laliemand, and IluicniN- soN. In a case recorded by JoEGEH,the induration was limited to the paiietes of the posterior cornua of both lateral ventricles, and amounted almost to that of cartilage. Bergman found both optic beds hardened in a paralytic and squinting girl : and Castellier and Anderson observed exces- sive hardening of the lobes of the cerebellum. Paitial induration of the nervous centres fre- quently co-exist with other ksionsof those organs, especially around old sanguineous effusions and morbid productions formed in the cerebral sul)- stance : they are also occasionally found accom- panying the usual results of chronic inflammation ^ of the niembranes; these being firmly aggluii- ■ nated together, to an extent of surface more or * less considerable, and closely adherent to a sub- jacent hardened portion of brain. (Portal, Anatomic Med. t. iv. p. 91.) 105, Caute nf hardening of the brain. — Thejirst degree of induration has been frequently found in persons who have died of fevers, generally of an ataxic or typhoid type, and in maniacs. M. Andral observed it in two paiienls afflicted with convulsions from working in lead. JMiNLGAUDtx {Recherclies sur I'Endurrissement gen. de I' Enreph. coinme une des Causes des Fievres Ataiiqnes. Paris, 1825.) and Bouillaud (^Archives Geiter. t. iii. p. 477.) consider it as the consequence of acute in- flammatory action of the brain and its membranes, they having found it in persons who have died of encephalitis occurring either primarily, or as a complication in fevers; and RI. Andral (Auat. m Futh. t. ii. p. 810.) seems to coincide with this I opinion. Budoipiii observed it in thirty cases m of typhus: and Otto found, during the epidemic typhus of 1809 and 1812-13, hardening of the brain frequent in those who died within the first week; and softening in many who died at a later period, but, in these cases, granting the induration to have been the consequence of the disease which destroyed life, it must have taken place in the short space of a very few days; whereas, I am much more inclined to impute it to inflammatory action of a lower grade and of a much slower progress. JM. BnovssAis regai'ds it as the result of meningo- encephalic inflammation, of a sub-acute or chronic nature. As being generally found in connection wiih increased vascularity of the sub.-tance of the organ, and with this and other signs of inflam- matory action of the membianes, the relation of this change to inflamiijation seems established; but I am inclined to ado|)t the inference of Dr. Craigie, in resptct of the opinions of JMJM. Gva- DET and Boi'iLLAi'D, that, in tho^e cases in which llicy cbseived this lesion, it had existed previous to the acute disease which occasioned death. 106. Induration of the brain has been long famili;ir to pathologists, in relation to mental de- ningemcnt. 'I'he writings of l.ni iii , (i i oi frov, ISoi'.hhaa VF, Lancisi, J\1orga(;ni (^Fpist. Anat. Med. viii. 4—18.), J. F. JMickel {Mem. de I' Acad. Hoy. de Berlin, t. vii. p. 306.), Lieotaud, Santorini, CiREDiNG {Ludwig's Advcrs. Med.- Fract. t. ii. pars 3. p. 533.), Portal, JMar- siiALi, (Morbid Anat. of the Bruin, 6ir. Lond. 1815 ), Hasi.am (Observ. on Madness and Me* lancholy. Loud. 1809.), Serres (Ann, Medico- BRAIN — Alterations op its Substance — Tumours. 221 Chirurg. Paris, 1819.), Lallemand (Recherches Aittt. Path. let. ii.), Lerminieu, Bouii.eaud (Traite C Unique de VEiictphal'de. Paris, 1825.), PiNEL, jun. (I?e'y. Mtd. t. vi.), Fovilee, and Pinel-Grandchamp, furnish numerous instances of it, thus related: and, from the history of the cases, as well as the generally augmented vascu- larity of the membranes and of the indurated brain iiself, I infer that it is a consequence of ciironic inflammatory action, conjoined with some change in the nutrition of the cerebral substance; and that it proceeds fiom a less intense and more ciironic state of the vascular action than that which occasions softening, or pulpy destruction of the cerebral texture. That such is the case is proved, not only by my own experience, but also by the observations of the authors enumerated above ; for, in the majority of those cases, even wiien presenting the appearances and consequences of cephalo-meningeal congestion and inflam- maiion, tiie symptoms of cerebral disease were of much longer duration than those depending upon morbid softening of the organ. 107. It has already been stated, that indura- tion of the cerebral substances, amounting to either the second or the third degree, is generally circumscribed in extent. Whatever doubts may be entertained of the first degree of hardening being the result of chronic rather than of acute disease, there can be no doubt of the second and third being always a chronic affection — perhaps, of a still more chronic state of capillary action timn that giving rise to the first form of increased hardness ; the morbid action, afl^ecting in the former cases a portion of the brain only, may be compatible with a longer duration of life, and hence give ri-e to ulterior or more advanced stages of change than those presented when the whole organ is affected, and all its functions and ener- gies thereby involved. That this change is one of the consequences of chronic irritation, or inflam- matory action, may be conceded as well as the supposition entertained by Anoral and Craigie, tliat the morbid irritation is connected wiih a perversion of the nutritive action. Indeed, the numerous cases detailed by Portae, Serres, Lallemand, Bouillaud, Pinel, and others, fur- nish satisfactory evidence, both in the symptoms during life, and in the co-existent lesions in the membranes and other parts of the brain, of the existence of a chronic inflammatory action, or of a state of irritative erethysm of its capillaries. But to say that this state is in such cases accompanied by a perversion of its nutritive actions, is ascribing to it what always is an attendant upon inflam- iTiatory action, of whatever grade, or in whatever texture it may be seated. It should, however, be mentioned, that M. Lallemand considers partial induration to occur occasionally as a favourable termination of morbid softening of the brain ; but this is a mere supposition. 108. As to the phenomena to which induration of the brnin gives rise, every practical man must feel considerable interest. I'he first and more general induration of the brain generally occa- sions loss of memory, confusion of thought, and derangement of the mental manifestations — caus- ing insanity without lucid intervals. When the induration is advanced in degree, or considerable as to its extent, or both, and especially when its long duration has been indicated by continued mental derangement, a complete obliteration of the mental faculties, or fatuity, is frequently its attendant towards the last periods of life, and may therefore be considered as the consequence of the most advanced degrees of this lesion. The signs of partial induration of the brain, in any of the grades to which I have referred, will vary accord- ing to the extent and seat of the lesion. They consist chiefly of a progressive defect of memory, inattention, or an inability to pursue a long traio of ideas, indifference to momentary impressions, and to present or future occurrences, difficulty of articulation, derangement of ideas, with partial or total loss of the affections, appetites, and desires; and ultimately increased loss of speech, palsy, convulsions, or want of power over the muscles, fatuity, general or partial wasting, and death. 109. Lallemand found, in a patient who had complained of fixed pain of the foreiiead, palsy of the face, and confusion of memory, tiie membranes firmly matted together, for the extent of a thirty sous piece, at the anterior extremity of the left hemisphere ; and the subjacent cerebral substance hardened to a scirrhous or cartilaginous firmness, and adhering closely to the membianes. Bouil- laud states the case of a man, aged sixty-eight, who, after symptoms of cerebral disease, had im- paired memory, headach, diflicuity of expressing his ideas, followed by muscular weakness, and convulsions: the cerebral substance was found injected, and induration was seen " passing from the striated body of the left hemisphere, through the nucleus, at the upper region of which it formed a cavity with hard yellow walls : a similar hard- ened portion also existed in the posterior lobe." According to M. Pinel, induration confined to the brain causes fatuity, with more or le-s of palsy ; but, if it extend to the annular protuber- ance, the crura cerebri, the corpora olivaria, or chord itself, epilepsy, followed by palsy, and death by marasmus, are generally superadded. In these advanced degrees of hardening, which are sometimes attended with a shrunk, depressed, and condensed appearance, — a species of atrophic hardening of the part, — there are usually re- marked palsy and idiotcy, which are either con- genital, or occurring subsequently to birth. 110. vi. Morbid Growths. — Tumours of the brain. — Tumours of various kinds have been found to originate in the substance of the brain ; but as Dr. Craigie (Anat. p. 447.) has observed, they have not been distinguished with suflScient precision by authors, from those which, originat- ing in the membranes, affect the brain only se- condarily. The first form of tumour which he has described, and denominated " cerebral tumour," entirely agrees with those partial intlurations al- ready considered ; differing from them in no respect, but in the extreme degree of firmness it presents, which is similar to the second and third (the latter particularly) degrees of hardening, arising in the manner I have endeavoured to explain (§ 104.), and affecting all parts of the nervous masses, — the cerebellum and medullary chord, as well as the various parts of the brain itself. (See Hardening, &c.) 111. A, Tubercular secretion, — Tyroma (Craigie). — Tubercles of the brain have been (lesciibed in recent times with much accuracy by Gendrin, Leveille, Ollivier, Abercrombie, 222 BRAIN — Alterations of its Substance — TuMOtms. Andral, and Craigie. They are formed of a white, or pale yellow, opaque, firm, cheese-like, sometimes granular and Iriahle substance, con- sisting of a large proportion of albuminous matter, and varying in size, from that of a millet-seed to the balk of a hen's egg. This substance is depo- sited ill various forms in the brain, but usually as follows : — 1st, One, two, or more, homogeneous, distinct masses of considerable size; 2d, Several, or many, separate, minute, spherical, or spheroidal masses. Cases of the Jiit,t form of tubercular formations are to be found in the writings of Manget, Rocnoux (Recherches sur V Apoplexie, p. 151.), Powell (Traiis. of Cull, of Phys. vol. V. p. 222.), Blane (^Trans. of a Society, S]'c. vol. ii.) Baillie {Fasc. of Eiig. No. 10. plate vii.), Coindet (Mem. sur I' Hydroce-ph. p. 106.), Bouillaud {Trau6, ^c. p. 161.), Abercromdie {Dis. of the Brain, &jc. p. 428,) ; Chambers (Med. and Pliys. Journ. vol. Iv, 1826, p. 5.), Piedagnel (J()u)'n. de Phys. t. iii. p. 247.), Berard {Ibid. t. V. p. 17.), and Hooper (Morbid Anat. of the Brain, p. xi. and xii. fig. 1.). Tu- bercles of this class vary in number from one to five or six, and in size from that of a pea to the Lulk of a hen's egg. In form they closely re- semble tubercles in other parts of the body. Ac- cording to LiiVEiLLE, they are often of an unequal surface, so as to appear lobulated, particularly when they are very large. If only one or two are present, their size is generally considerable. ]M. Andral mentions their existence in the cere- bellum, of so large a volume as to destroy nearly tiie whole of one of its hemispheres. Even when of this bulk, they consist of the opaque, cheese- like substance already described, and are always destitute of vessels, or any trace of organic struc- ture. 'I'hey are albuminous, friable, and gene- rally surrounded by a cyst. MM. Gendrin and Lkveille are of opinion that they always have cysts, but of variable thickness, which are some- times remarkably thin, at other times, especially in old tubercles, thick and fibrous. The cyst adheres externally to the surrounding cerebral structure ; and its internal surface sends off de- licate filaments, which traverse the continued tubercular matter, and, in the large and old tu- bercles with thick cysts, seem like small fibres or partitions passing between the lobules of the con- tained subslance, which is disposed in cellules formed by these filaments. In some large and old tubercles, the cyst is fibrous, cartilaginous, or even osseous (Gendhin), and is sometimes par- tially separated fi'om the surrounding cerebral siructure by a minute quantity of serous fluid. In proportion as the tubercle softens, the cyst be- comes more apparent. 1J2. The surrounding cerebral substance is often perfectly natural, and sometimes variously altered; — occasionally inliamed, or softened, or atrophied, or even destroyed, especially when the tubercles are very large. Upon these lesions, the symptoms during life are often chiefly de- jicndent. Very frequently, especially in children, tubercles varying as to number and size may exist in the brain, without occasioning any sym- ptoms sufficient to lead to the susjiicion of cerebral disease: but this seems to be the case only when the nervous substance around them lias been but little changed from the heallliy state. When nervous Bymptoms have appeared without such change, they have generally assumed an intermit- tent character. • 113. It is very probable that tubercles are formed in the brain, as elsewhere, at first in a fluid state ; and that they afterwards either undergo a slow coagulation, or have their aqueous por- tions partly absorbed, the albuminous and otlier more solid constituents forming the tubercular substance. INI. Bouillaud believes that they are the product of an inflammatory process ; and the tendency of inflammation to produce an albu- minous secretion certainly countenances this opinion. Whatever may be the origin, they ap- pear to experience in the brain a similar softening to that which they undergo when formed in other organs. When this is advanced to more or less partial fluidity, tubercles may be mistaken for otlier formations ; and when amounting to lique- faction, the tubercular production can, with diffi- culty, be distinguished from a small encysted abscess. (See art. Tubercles.) 114. The second form in which tubercular productions are found in the brain, is that of spheroidal bodies, disseminated through its sub- stance. Professor Reil (Memorah. Clinica, t. ii. fas. iii. No. 2. p. 39.) describes them, in a case which occurred to him, to have consisted of about two hundred spheroidal bodies lodged in the grey matter of the brain and cerebellum. I'liey were a little firmer than the brain itself, mostly of a pale yellow, some of a pale blue, of the size of a lentil or pea, and consisting of an adipose-like substance. From some, which were marked in the centre with a dark point, and seemed covered by a thin cyst, a slight incision discharged a mat- ter-like vermicelli. These bodies were confined entirely to the cortical substance of the brain, chiefly near the deep anfractuosities, and but very few were in the prominent parts of the convolutions. They were most numerous in the superior aspect of the hemispheres, less so in the cerebellum, and least numerous in the base of the cerebrum. The pia mater was remarkably injected with blood, and the ventricles contained very much fluid. This patient had never complained of pain in his head, although long afflicted with scrofulous sores, until eight days previous to death. In a case recorded by M. Ciiomel (Nouv. Journ. de M^d. t. i. p. 191.), similar bodies were found disseminated through the brain of a woman aged thirty, who died with symptoms of cerebral dis- ease. Two such productions were also found in the cerebellum, and one in the spinal chord. Cases similar to the aliove have likewise been re- corded by other writers. Tubercles, even in the form now being considered, are seldom or ever found in greater number than in the case just quoted from Reil ; and, as Gendrin has remarked, they are never found in the brain in so very great numbers as in the lungs; nor, in my o])inion, do they assume, in (he cerebral struc- ture, the ag;ili)meraled form, in which they are so often met with in other viscera, and in the lungs especially. 115. Tubercles are often met with in the brains of children, and those especially of a strumous diathesis, and upwards of one or two years of age. '1 hey occur most frequently from this age to puberty; after which they aie rarely met with, even in scrofulous and jihthisical subjects, where tubercles exist not only in the lungs, but J BRAIN ^Altehations of its Substance — TuMouns. 223 also in other organs. They are most common in the hemispheres of the brain, and there occupy indifferently either the cortical or the medullary texture : sometimes they appear, as it were, placed between both. In some cases in which they have been found in the more exterior layer of the cineritious structure, they seem not to have been originally formed in it, but to have sprung from the internal surface of the pia mater, and to have pressed inwards the cerebral tissue as they in- creased in size, forming, as it were, a superficial cavity in it, without any intimate union with it beyond that of close contact. The parts of the brain, after the hemispheres, where tubercles are most commonly found, are, accordmg to ftl. An- DRAr,, the cerebellum, the mesoceplialon, the medulla oblongata, various parts of tiie spinal chord, the peduncles of the cerebrum and cere- bellum, the thalami optici, corpora striata, the commissures of the thalami, and pituitary body. According to the order of frequency here indi- cated, it will be observed, that those parts of the cerebro-spinal axis which are most frequently the seats of inflammation, softening, or hasmorrhage, are not those which are oftenest the seat of tuber- cles. 116. B. Adipose tumour (yVK^zKi.'), — Fatti/ pro- ductions (Andual), — Lardaceous degeneration (Hebreart, Annuaire Med.-Chirurg. Paris, 1829. p. 579.), — Ceroma (Craigik). — This morbid formation has been noticed, under the above designations, by the authors whose names are respectively noticed, and also by Rudolphi, Braun, Cruveilhier, Meeat, Liprestre (Ar- chives Gen6r. de Med. t. xviii. p. 19.), and Dal- MAS (Journ. Hebdom. de Med. t. i. p. 332.). BoRELLi states that he has found, behind the upper part of the medulla oblongata, a fatty, homogeneous, reddish, or rose-coloured substance, the size of a nut, apparently traversed by reddish lines, and contained within a thin envelope. A similar tumour, though smaller, was found in the left cerebellic hemisphere. Amongst the great number of brains examined by the Wenzels, only two presented this change ; which they de- scribe as having been smooth, of a yellow colour, and consisting of a solid, adipose, ash-coloured substance ; and, although found near the exterior surface of the hemisphere, penetrating deep into the substance of the organ. 117. According to ]M, Hebreart, this disease is not so rare as the Wenzels lead us to suppose. He had met with four cases of it ; two in which tiie tumour was seated in the brain, and two in the cerebellum. " In the first of the former, a dis- tinct tumour, consisting of matter of a yellow colour, and lard-liiie consistence, the size of a nut, in the anterior part of the anterior lobe of the right hemisphere, gave rise to idiotcy. In the second, a square inch of the posterior lobe of the Lft hemisphere was converted into a yellowish pulpy matter, which was separated from the con- tiguous sound brain by hardened cerebral sub- stance. This, in a man aged forty, caused epi- leptic paroxysms, occurring once or twice a month, which at last proved fatal, by causing asphyxia. In the first of the cerebellic cases, in a young man who had been idiotic for six years, tlie cere- bral substance, forming the walls of the fourth ventricle, had been converted into a yellowish lardaceous matter. In the second, that of an incurable maniac, a space, six lines in diameter, of the lower part of the right hemispheie of the cerebellum, had become hard, yellowish, and lard- aceous, both in the grey substance, and also in the white." The membranes also participated in this change. IM. Hebreart considers that this lesion may occur in two forms, — 1st, As a de-- generation of the cerebral structure into a matter of a yellowish colour and lardaceous consistence ; and, 2d, In the shape of a distinct tumour situ- ated in the cerebral substance. 118. Closely allied to the above, although materially different in some respects, yet still more strictly deserving the term adipose, are the tu- mours described by Leprestue and Dalmas. M. Leprestre found, in the left side of themeso- cephalon of an adult subject, a large tumour, with a brilliant lobulated surface, consisting of concentric layers, united by means of fine cellular tissue, but without any trace of blood-vessels. It was denser in its structure than the brain, and closely resembleil a mass of adipocire. This resemblance is remarkable, inasmuch as MM, Barruel and Gmehn have demonstrated, in the healthy human brain, a certain quantity of fatty matter and cholesterine. The tumour found by M. Dalmas nearly resembled the foregoing. It was situated in the base of the brain, and was as large as a hen's egg. It rose upwards into the third ventricle, separated the parts which contri- bute to the formation of this cavity, and disap- peared in the medullary substance of the striated bodies, the thalami optici, the anterior commis- sure, &c. Its superior surface closely resembled spermaceti. Its, inferior surface was transparent, polished, and studded with a number ot pearl- like granulations, from a line to a line and a half in diameter, which were, like the whole of the mass, perfectly homogeneous, and devoid of every trace of organisation. When analysed by M. Barruel, this tumour was found to contain a very large portion of fatty matter, and a substance which seemed to be cholesterine. The description of a similar tumour is recorded in the first volume of the Journal Clinique des Hopitaux. Otto also found a fatty tumour, which contained hair, protruding through an aperture in the hemisphere into the ventricle, its cyst shining like mother-of- pearl. 119. C. Flesh-like tumour, — Adenoidea (Crai- gie). — This production has been described by the vague names of scirrhous and scrofulous tu- mour ; but it cannot be admitted to possess un- equivocal characters of either. It is generally stated to be similar to a mass of flesh, or an en- larged absorbent gland. Its colour is light pink, or pale flesli-colour ; its firmness is considerable ; and, in some instances, it is compared to the kidney. Cases of this description of lesion may be found in the writings of Plater (Obscr. 1. i. p. 13.), T. BoNET (Sepulchretum, t. i. p. 283.), llnoDius (Cent. Obs. 1. No. 55.), J. J. AVagner, (Miscell. Curios. Dec. II. Ann. 10.), J. G. Zinn {Comment. Soc. Reg. kicient. Golt, t. ii. 1752.), J. J. IIuBER (Nova Acta Physico-Medico Acad. Cas. Leop. Cur, I. iii. p. 533.) ; et Comment, de Rebus in Scient. Nat. t. xviii. p. 335.), Halleb (Opusc. Path. Obs. i.), J. E. Greding (Ludtiig's Advers. Med.Pract.t. ii.parlii. p. 492.), II. Earle (Med. Chirurg. Trans, vol. iii. p. 59.), Powell (Trans, of Coil, of Phys. vol. v. p. 241.), &c. Moit zU BRAIN — Alterations or its Substance — Tumours. of (hose cases appear to have occurred in strumous labits ; and, besides signs of glandular disease, many of them were affected with palsy, apoplexy, or mental derangement ; and otiiers with convul- sions and epilepsy, shortly before death. ]M. Andual (Aiiat. Pathnlog. t. ii. p. 848.) mentions his having found, in the middle of one of the hemi- spheres of the brain of a person who had died of apoplexy, a fleshy fibrous tumour of the size of a walnut. 120. D. Fibrp-curtilnginous tumour, — Scirrhtis, Chondroma (IIoorER and Craioie), — is probably, in itssliglitergrades of change, merely an advanced state of tlie third variety of paitial induration of the brain (j 103.). It is distinguished from the surrounding cerebral substance by its great firm- ness ; its irregular and lobulated form ; its yel- lowish, hard, and fibrous structure ; and, in its advanced stages, by the presence of a semi-fluid, gelatinous matter, occasionally tinged with blood, contained in small cavities, disseminated through it ; and by a tendency to softening; death, how- ever, generally taking place before complete soft- ening, or cancerous ulceration, has surpervened. This tumour is not often met with in the substance of the brain, and very seldom as a primary affec- tion. It seems to consist of a change in the structure of thj part aflfected, rather than of a deposition of adventitious matter ; and it is not enveloped by any cyst; but gradually disappears in the surrounding substance, which is sometimes softened. All the cases which have been recorded of scirrhus of the brain, are not in every respect similar to the above description, but an approx- imation to it merely ; some, according to the loose accounts given of them, being intermediate be- tween this and the cartilaginous conditions. The best illustrations of this form of tumour have been furnished by Cruveilhier (^Anut. Puthol. t. ii. p. 80.), RosTAN (Recherches sur le Ramollisse- ment du Cerveau, &;c. Ire ed. p. 80.), Andral (^Jotini. de Physiol, t, ii. p. 105.), Bouillaud (Trail£ CUnique de I'Eiictphalile, &;c. 1825.), Lerminier (Ann. M^d.-Cliiruvg. 1819, p. 225.), ]\loNRO (Morb. Anat. of the Brain, p. 55.), Wade ( Medic, and Plii/s. Jour7i. vol. Iv. p. 369.), Bayi.e ( Rcch. sur la Plithisie Pulmon. &;c. p. 305.), and Copland Hutchison (Trans, of Med. and Chir. Sue. vol. ii. and iv.). All these cases were cha- racterised by acute pain in the head, stupor, palsy, idiotcy, convulsive movements, and, at last, insensibility, coma, or complete apoplexy, and death ; or by one or more of these symptoms ; and several of ihem seemed to originate in external injury received at a more or less remote period. 121. E. lionq tnynours and calcareous concretions, -^Osteoma (II joper), — are rarely observed in tiie substance of the brain. Cases have, however, been furnisiied of their formation, in more or less considerable masses, — near the right ventricle, in an idiot, by KiuKRiNCiius (Ohs. Anat. p. 135.); in the corpus striatum, by Deidier (Des Tn- meurs, &ic. p. 351.), and Kentmann {De Calc. in Ilominih. Tig. 1536.); in one of the corpora quadrigemina, byTvsON (Phil. Trans. No. 228.) ; in the union of the optic nerves, by ]5i,icny (Zodiac. Gall. ()b<. xiv. p. 81.) ; where they were attended by violent pain in the occiput, by Boyer (Cruveilhier's Anat. Path. t. ii. p. 84.) ; in the cerebellum, by Littre (Mem.de I' Acad. deParis, 1705, p. 55.); in the cerebellum of an epileptic. by LiEUTAUD (Hist. Anat. Med. l.iii. Obs. 179.) ; in the pons varolii, by Metzger (Ohs. Anat. Reg. 1792, p. 3.); in the optic beds, by Caldani (Oimsc. Anat. Path. 1803, p. 51.) ; in one hemi- sphere of an epileptic, by Otto (Comp. Anat. Pa//i. p. 415.) ; in the cerebellic peduncles and protuberance of an idiot, by Home (Phil. Trans. 1814. ); in the left hemisphere, by Anural (Journ. de. Phijsiol. t. ii.p. 110.) ; in the cerebellum, with violent pain at a determinate part of the occiput, by Nasse (Abercrombie on Dis. of the Brain, p. 426.) ; in the centre of the medullary substance of the anterior lobe, with jnilpy destruction of the surrounding part in one case, and in the cerebellum in another, by Dr. Hooper (Morb. Anat. of the Brain, p. 39.). Besides these, other instances are referred to in the Repertorium of Ploucquet, and the Compendium of Otto. In more numerous cases, the chalky, calcareous, or bony matter, is disseminated like sand in a diseased portion of brain, and can be detected only by squeezing or rubbing the part between the fingers. In some cases the bony matter ap- pears like minute spiculec, or particles; and Dr. Hooper states that he has found each of them attached to a filamentous vessel. 122. Sabulous concretions are so constantly found in the pineal gland, or its peduncles, even of those wiiose cerebral functions were most healthy, that Soemmering conceived them to form a part of its natural structure in adults. But this part may be greatly enlarged, and contain calcareous matter to an excessive amount. A case of this description is given by Mancet (Theai. Anat. 1. iv. c. ii. p. 309.) and Salzmann (De Gland. Pineal. Lapid. Arg. 1733.). 123. /''. Hiigromatous tumours, or cifsts, contain- ing a serous or albuminous Jluid, — Hygroma oi Hooper, — are not infrequently found in some part or other of the brain. Dr. Hooper has de- scribed four varieties of these cysts: — a. That consistin^j of a simple cell, or cavity, containing a transparent, yellowish, or yellowish red, serous fluid. Their sides are somewhat harder than healthy brain, occasionally rough, and of a brown- ish hue internally, but mostly smooth and shining. They present no appearance of membrane bning the cell, nor of vascularity ; are of the size of peas or nuts, and are most frequently met with near the external surface of the brain. They appear to be the remains of cavities formed by extravasated blood. — h. Another variety is a dis- tinctly encysted tumour, consisting of a membran- ous cyst, or vesicle, filled with a serous fluid. This cyst is delicate, is formeil of a single mem- brane, and is provided with vessels coming from the surrounding brain, and which may sometimes be seen ramified over it. The fluid which fill< it is colourless and limpid. This variety varies from a very small size to that of a small orange. It is sometimes solitary ; but occasionally two or more may be embedded close together. — c. Dr. Hooper describes two other varieties, one of which is formed of a cyst, which is opacpie in some parts, and transparent in others, and distended with a sero-albuminous fluid. The cyst is not apparently vascular, but is much thicker than tho preceding ; and its contents coagulate by heat : d. 'i'lie other is characterised by the remarkable tiiiekness of its cyst, and the thick albuminous nature of its contents. It is generally found BRAIN — Alteuations of embedded in the medullary substance of the brain. 124. G. Htjdalids. — The existence of assing into somnolency, coma, and complete reUnalion of the limbs. 151. We are rarely enabled to distinguish between inftHmmatton of the arachnoid membrane and that of the pia mater by the sympioms during life, I shall tlieiefore comprise under the head of meningitis inflammations affecting one or more of the membranes of the brain. 152. Symptoms. — As tlie u~es of the cerebral membranes are not rendered sensible by manifest functions, it may be concluded that diseases of these parts may exist to a considerable extent, without any distinctive symptoms. The justness of this observation is but too frequently confirmed by experience ; for there are few practitioners who have diligently employed their opportunities of post mortem research, and have not observed appearances of inflammation, without much dis- order of the intellectual faculties, or of the move- ments of the body, having been manifested, almost up to the moment of death. Such instances are not rare, particularly in persons advanced in life. JMore frequently, however, when the membranes are inflame 1, the adjoining portions of the brain, the functions of which they are probably intended to facilitate, evince some sort of disorder, particu- larly of iheir usual functions. Ihese symptoms, although indirect, are generally similar to liiose of the inflammation of the cerebral substance itself, and are the chief guides to lead us to the recognition of meningitis. 153. The symptoms vary according to the seat of the inflammation, the stage at which it has ar- rived, the severity of the attack, and the celerity of its progress. The disease in its usual form presents three periods : l^t, that of invasion ; 2d, that of fully developed inflammation ; and, 3d, that of compression. Some one of ihese periods, however, does not always exist, particularly when the inflammation is very general or very circum- scribed, or when it is very acute or very chronic in its progress. Meningitis afl'ects more I'requently that part of the membranes which covers the convexity of the cerebral lobes, in adult subjects; and the portions about the base of the brain, in young children. 154. A, Acute meningiiis of the convexity of the cerebral lobes is aitended with violent pain, which is exasperated at intervals, and often with stupor or somnolency. It occupies various regions of the cranium, the frontal, occipital, syncipital, &c., and is augmented by motion, particularly by rotation of the head, which, in children, is often drawn backwards. In this class of patients the pain is expressed, particularly upon being roused, by a peculiar cry, which the experienced observer recognises as a diagnostic sign of the disease, and after utteiing which the intant sinks into a somnolent stupor, in which it grinds its teeth frequently. The functional derangements occasioned by meningitis are usually of a general character, although the inflammation is more freciuenlly of limited extent. I'his is owing to both sides being attacked at the same time ; cases where the meninges are inflamed on one side only being very rare. 155. a. Pain in the head is generally pre- ceded by chills or rigors, wtiich may be viewed as the result and indication of the formation of the disease ; but cases not infrequently occur, wherein the foregoing signs in a greater or less degree precede the rigors even for a considerable time. The face at first is often pale ; but, as the BRAIN — Inflammation or its Memeiianes. 229 disease becomes fully developed it is more fre- quently slightly tumid, flushed, and expressive of pain, and the eyebrows knit or contracted ; the eyes are heavy or brilliant, injected and watery, generally nearly shut, incapable of bearing the light, and the pupils contracted. The patient thinks he sees fire, or scintillations of light; and sometimes the colours of bodies appear diflTerenily shaded. The slightest noise is insupportable, and all the senses are in a state of morbid activity. His answers are brief and quick, and there is an evident activity of mind, but as yet no delirium. His disposition, however, seems changed ; and he becoxes impalient, irritable, abrupt, and quick in his manner, and his countenance is expressive of irritation and pain. The temperature of the head is now greatly increased ; the pulse is frequent and developed ; the tongue rather dry, its papillaj more or less erect and distinct; thirst is com- plained of; the urine is scanty and high-coloured, and the bowels are obstinately constipated, but •in some instances, in children, either relaxed or irregular, and the evacuations morbid and ofTen- sive. From the commencement of the attack there is generally vomiting, particularly in chil- dren, which recurs at intervals, is unattended with tenderness or pain at the epigastrium, and is manifestly sympathetic of disease within the head. In adult subjects, vomiting is sometimes absent. It is not infrequently remarked, that this stage either does not occur or passes un- observed in aged persons. The patient loses suddenly his recollection, as in congestion only of the brain ; but to this succeed febrile sym- ptoms, distinguishing it from this latter affec- tion. 156. b. After an indeterminate period, com- monly varying from one to three or four days, according to the intensity of the attack, violent delirium comes on, but not constantly. If the pain in the head continues, it is not complained of by the delirious patient ; Snd the senses are no longer intolerant of their natural excitants ; the pupils commence to dilate or to contract, and strabismus supervenes ; the countenance has a convulsed appearance ; the lips are drawn some- what to one or both sides; the pulse is more or less developed, sometimes irregular and trem- bling, and is rarely at this period feebler or slower than natural ; the tongue presents the same ap- pearances already noted ; the thirst, and fre- quently the vomiting, still continue. The tem- perature of the head continues excessive, but occasionally fluctuates, whilst that of the rest of the body is often not materially augmented. 157. c. To this state succeeds more or less marked exhaustion, which should not be taken for commencing resolution of the disease. The patient ceases to scream ; and the symptoms of violence subside ; but to these succeed slartings of the tendons, carphologia, convulsive motions, and sometimes cramps, chiefly in the upper ex- tremities. The pupils are dilated, contract with difficulty on exposure to light ; the eyes are rolled in their orbits, become insensible, as well as the other senses, to the ordinary excitants ; and a complete calm takes the place of the violent delirium ; the patient even not answering ques- tions put to him. He has had no sound sleep excepting a f.itiguing stupor; he is now plunged in a profound coma. The limbs are, up to this Q 3 230 BRAIN — Inflammation of its Substance. time, rigid and contracted, but soon become completely relaxed. This state is owing, gene- rally, to the effusion of sciaun, which has now taken place; but it sometimes may exist without increased effusion ; injection and congestion of the vessels of the brain, or compression, from whatever other cause, also producing it. At this period of the disease the face is pale, the eyes in- expressive, dim, half open, and drawn upwards; the cheek bones prominent, the temples hollow, the nose pinched, the ears cold ; the lips dry, applied closely to the teetli, which are covered with a fuliginous coating at their base ; the tongue is dry, hard, and brown; deglutition difficult, the abdomen distended with flatus, and the ffeces and urine voided involuntarily. The skin iseither cold, or covered by a viscid sweat; the pulse is small, unequal, or irregular; the respiration slow, sometimes stertorous; the expired air is cold and foetid ; and the patient dies generally in the course of a very lew days, or fiom two to three weeks, and but rarely later. 158. These are the principal symptoms of acute meningitis of the cerebral hemisphere'^. They present ii regular periods of exacerbation ; the heat of skin and character of countenance vary- ing at difTerent times without any evident cau>e. The stages of the disease are not precisely marked ; either of them may be wanting, and sometimes they seem as if confounded with each other. When the disease terminates favourabhi, the symptoms sub-ide gradually ; resolution taking place, sometimes with, but as frequently without, critical phenomena. 159. According to the observations of MM. Parknt, jMartinet, and Rostan, wdien the wc/h- hraites of the base of the biain, or of the ventricles, are the seat of the inflammation, the symptoms are somewhat different. The patient then ex- periences less delirium, or even preserves his in- telligence almost entire ; his faculty of attention, and some of the other intellectual powers, being only diminished, lie answers slowly, but ration- ally, to questions put to him ; somnolency is almost continued, and coma more quickly super- venes. In other respects the symptoms are the same. Cephalalgia is complained of chiefly at the bottom and above the orbits; in general, the symptoms of irritation and excitement are less strongly ]>ronounced than in the preceding form of the disease. lt)0. /i. Chronic meningilis differs from the acute chiefly in the less intensity of the sym- ptoms, and slow progress of the disease. In many cases the functions of sense and locomotion are but slightly disturbed, and usually the intelli- gence is uniiiqiaired ; at least, as long as the inflammation docs not aflect the iricmbranes of the convexity ol the hemispheres. Wlien seated, however, in this place, according to M. Rayle, who has devoted considerable research to this subject, delirium freciuently is also present, but it is seldom violent ; sometimes it is taciturn ; and the ))atient gimerally is engaged with lofty or ambitious ideas. 161. ('Inonic meningitis commonly succeeds to the acute form of the disease ; but it often presents the chronic characters from the com. inencenient. 1'here is generally continued head- ach, vviiJi slight somnolency, sluggishness, in- capacity and want of desiic for intellectual exertion, nioroseness, irritability of temper, some- times confusion of ideas, embarrassment of speech, and delirium, terminating in confirmed mania or maniacal idiotcy. The motions of the limbs are slow, difficult, or painful ; and their muscles are subject to involuntary motions and twitchings, and sometimes are not under the control of vo- lition, or are altog^ether paralytic. Vomiting and convulsions are rarely present, excepting in in- fants, where they are often the chief or almost only signs. In children, the peculiar knitting of the eyebrows, retraction of the angles of the mouth, whining or peevish cry, stupor, grinding of the teeth, scanty urine, obstinate cosliveness, and the increased lieat of the head, are the chief symptoms; these being s-imilar in kind, but much milder in degree, than those accompanying the acute or sub-acute states of the disease. In many cases, both in children and adults, the func- tions of organic life present but few lesions of a marked description until towards the last period of disease, or shortly before death. It will be perceived that many of the phenomena here stated, belong to disease of the brain, — a circumstance which must necessarily obtain, for as the mem- branes surround the whole of this organ, and are one of the chief media of distributing the blood- vessels to it, any disease affecting its structure, or modifying the quantity or properties of the fluid secretion furnished by these membranes, for its protection, &c., must necessarily implicate the state of its functions. 1G2. C. The duration of meningitis necessarily varies with its intensity. In its ucnte form it extends from three or four days to twenty-eight, ami even thirty; but more fretjuently from seven to fourteen days. In many cases it is difficult to assign the period of invasion ; pain and somno- lency having been complained of even for days before the occurrence of chills or rigors. The disease also not infrequently supeivenes on other att'ections, and occasionally becomes complicated with them, particularly in the course of honping- congli, and diseases of the prima via, when its invasion may be overlooked, or with difficulty ascertained. The more chronic states of meningitis have no determinate duration : they may proceed gradually and in a slight form, when, unexpect- edly, from some exciting cause, or even without any evidence of such occurrence, they may as- sume an acute character, and terminate more or less rapidly. 163. i). The oro-(/7iicf/iaHn-es consequent upon inflammation of the cerebral membranes are ob- served chiefly in the jiia mater, the arachnoid, and the reflection of the arachnoid covering the dura mater, and not infrefiuently, also, in the cineritious substance of the brain. 'I'hcse consist principally of injection and impregnation of the pia mater wit;h blood, &c. ; loss of the trans- parency of the arachnoid ; effusion of serous or sero-albuiniiious fluids ; and the vaiious lesions pailicularly described in the preceding sections {§ 22-28.). Euain — Inflammation of its Substance. — Svn. I'hrenesis, Phrenismus, Auct. Var. Encephalitis, Enkephalilis, Hildenbrand. Cephalitis, Auct. \'ar. Recent. Euctphalile, Rouillaud and other French Pathulugists, Ccrdhrile, Foville. Cephalitis Profunda, Good. Cehirnenz'undung, Ger. BRAIN — Tnflamm 164. Defiv. Pain nf the head ; vertigo ; altered sensibility ; spasms or cmitractions, of one or more iunhs ; excited or deranged Junctions (if sense and intellectual power ; rapidly terminating in coma. 165. I have stated tlrat meningitis manifests itself to our senses cliiefly by the lesion of the cerebral functions ; and that tliis \i occasioned in two ways, viz., by derani^ing and impeding tlie functions of the brain, wliicii the^e membranes are intended to facilitate; and by imparting the inflammatory action to those parts of the brain contiguous to them. But althougii tiie relative connection of parts thus necessarily increases the ditHeully of distinguishing tlie symptoms proper to the membranes, or to the brain itself, still there are certain signs which enable us to infer the degree to which either may be separately affected. We shall see in the seciuel, that, in cerebiitis, the organs of voluntary mtition exiiibit frequently morbid phenomena which are generally limited in extent; whilst we have seen, in meningitis, these organs are affected generally, and seldom or ever partially, excepting when complicated with inflammation of some portion of the brain ; and if, in cerebritis, all the voluntary actions are afiected, the inflammation has commenced in the membranes, and extended itself to the sub'^tance of the brain, — the disease existing as meningitis and cerebritis conjoined, which is, perhaps, its nio>t common state, and in which I shall presently consider it. 166. Symptoms. — A. The more immediate functional derangements. The functions of the brain consisting of sensation, volition, instinctive desires, intelligence, and moral sentiments, it is evident that the phenomena of the d'sease should be sought after in this series of manifestations; and that they will vary, in respect of their par- ticular states, their intensity, and progress, ac- cording to the seat, the nature, and extent of the organic change. 167. a. When cerebritis is general, it often presents the same functional disturbances, and the same progress and stages, as meningitis : it is, indeed, very probable that both diseases co-exist, and that the inflammation commences in the pia mater. However, when the whole cerebral mass is inflamed, coma, with relaxation of all the limbs, lakes place much earlier than in meningitis ; and the disease developes itself with extreme rapidity ; the symptoms of vascular excitement scarcely showing themselves, or, at least, for a very short time; and being frequently altogether absent. This difference is readily explained, when we con- sider that, in meningitis, the brain being only secondarily and slightly affected, it may still ex- ercise its functions, although in a deianged man- ner; whilst in general cerebritis, the change being extensive, its functions must necessarily be sus- pended. The patient, after a rigor, v/hich ushers in this as well as the majority of other inflam- mations, sometimes loses recollection; but he has generally experienced other symptoms previously, such as obstmate pain of the head, twilchings, pricking sensation*:, slight numbness or diminu- tion of the sensibility, with painful muscular action, vertigo, sudden want of recollection, and tinnitus aurium. Sometimes the sensibility is morbidly increased at this stage, as well as the functious of sense; the intellects are active, or excited ; and there is watchfulness, with other ATION OF ITS Sl'ESTANCE. 231 analogous symptoms, for a longer or shoiter period before the patient is seized uith rigors and insensibility, 108. b. These precursory symptoms M. Rostan considers as tiie result of an incipient disorder, which he conceives to be local congestion, and that inflammation has not then taken pLice; but they are, more obvious-ly, signs of an early period of inflammatory action. These symptoms are frequently accompanied witli general signs of plethora or determination of blood to the head ; the pulse, particularly of the carotids, is hard, or full and developed ; the countenance is injected ; the skin hot, &c. The same precursory si;^ns are likewise observed in softening of the brain ; but in this aflMsction the pulse is not augmeuied in frequency or fulness, the skin is cold and pale, and the countenance pale or shrunk. 'i"he sym- ptoms now described indicate, at least, thatmorbid action has commenced in the brain, and that it is not so extensive or intense a^ not to subside under judicious treatment. But when the pa- tient has had rigors, the functional disturbance, especially of locomotion, is particularly marked : then ensue clonic or tonic spasms of the muscles, such as starlings of the tendons, carphologia, convulsions, cramps, rigid contraction of the limbs, &c. At a more advanced period, par- ticularly when efl^usion supervenes, paralysis or relaxation, and loss of sensibility of a limb or limbs, takes place. 169. c. When cerebritis is general (which is never the case without the pia mater being in- flamed), these symptoms afl^ect all the limbs simultaneously ; when local, only som.e of them, according to the seat of inflammation. Spasms, convulsions, or paralysis, aflTect also the muscles of the face ; there is a falling down of the upper eyelid ; the eyelids are shut and contracted ; the commissures of the lips aie drawn to one side, either by their natural tonicity, when the an- tagonist muscles are paralysed, or from a mor- bidly increased action. Sometimes this exists on both sides, producing retraction of the angles of the mouth. A'ery frequently the muscles and limbs are remarkably painful; so that, when attempts are made to move them, or to straighten those that are contracted, or upon attempting to move himself, the patient screams out, 170. d. In partial cerebritis, the action of the muscles and the sensibility of the surface are also partially, but not permanently, afl^ected ; some parts being less disordered, whilst the afi'ection extends to others; or they all become more severely and permanently disesised ; the spastic contractions, wliich existed at first owing to inflammatory irri- tation, giving place to paralysis, in consequence of pressure or disorganisation. The intellectual faculties are also frequently disturbed. Tiie patient's answers are abrupt, rapid, sometimes incoherent, and at other times made very slowly. When merely one hemisphere is aflected, it has been supposed that; the functions of the other will proceed so as to prevent the appearance of much disturbance of the mental faculties ; but this may or may not be the case; and, at least, can only occasionally obtain. The mental distuib- ance, which is extremely various in its forms and states, according to the part of the brain aflected, exists only during the first days of the disease, and is soon displaced by coma. Q4 232 BRAIN — Inflabimatiok of the — Seat 171. e. At the commencement, particularly ■when cerebritis is general, or affects the periphery or more superficial parts of the brain, as in me- ningitis, or meningitis complicated with superficial cerebritis, the functions of the senses are nioibiclly increased, the least light or noise, or the slightest touch, being insupportable ; but when the disease is seated in the centre of the brain, where the senses transmit their impressions, there is either ])erversion, or complete loss, of these functions. 'J'he pupils are then fiequently dilated and in- sensible; the eyes unaffected by light, the ear by sounds ; and the other sen^^es are similarly dis- turbed ; the patient is either watchful, or is oppressed by a somnolency intermediate between sleeping and wakmg ; and numbness, with twitch- ings, or local convulsions, are generally observed. 172. In the course of a period varying from one to three or four days, or sometimes earlier, and occasionally later, the symptoms are changed, owing to the local aflfection having advanced to disorganisation. At this period, copious eflusion ot serum often takes place, occasioning symptoms of compression. 'I'he spasms and convulsions are replaced by relaxation and immobility ; and the senses are paralysed, not only on the side oppo- site to the cerebral lesion, but on both sides si- multaneously, owing to the healthy parts of the brain being compressed by the effused serum, or by the tumefaction of the parts inflamed. Sensibi- lity diminishes rapidly, and is at last abolished ; the intellects are obscured, and at last overwhelmed, and the patient becomes profoundly comatose, or, in the less acute or chronic cases, hemiplegic, and sometimes ultimately apoplectic, or epileptic. 173. B. The mediate si/mptoms. — During the first days of the disease, the countenance is full and coloured; the eyes brilliant and animated, their expression unusual; the temporal arteries, as well as the carotids, beat strongly ; there is no appetite; the tongue is white, loaded, red at its niaigins and point, and the papilla; developed ; there are nausea and vomitinjf ; the bowels are costive ; but occasionally in children there is a diar- rhoea from the commencement, and the evacu- ations are morbid and offensive; the skin is varm, the pulse strong and frequent, and the re- spiration accelerated. At a later period, a very manifest change ensues ; the countenance is ex- pressive of pain, irritation, and chagrin ; the fea- tures begin to sink and become pale ; the eye* dull and half closed ; and thirst is no longer complained of ; deglutition is difficult, or cannot be aicom- ])lished ; vomiting is produced with difficulty; the abdomen is distended with flatus ; and llie"fn)(luced III! cereliy'ilis are fully described in pre- ceding sections ot this article (§ 4i). et seq.). lillAIN InM.AMMATION 01' lUL RlKBUJItANES AND SuiiSTANCE OF TIIF.. SvN. PIllC- vilis (from (pi'V", the mind) ; Encephalitis, Cephalitis (from Ke(pa\rj, the head), Fiunk and Hii.DENnnAND. Phrenesie, Encephalite, Fr. Hirneniz'undung, Ger. 174. Defin. Violent pain in the. head; pro- minent suffused eyes; flushed countenance ; violent delirium, followed by profound sopor. 175. Having described inflammation affecting chiefly either the membranes, or the substance of the brain, I now proceed to consider inflamma- tion attacking these structures simultaneously, or rapidly extending from the one to the other, chiefly from the former to tiie latter. This is cer- tainly the more common form in which inflam- mation seated within the cranium manifests itself in adults, particularly in hot countries, and in temperate climates during hot seasons. In chil- dren, however, a more or less evident limitation of the inflammatory action to either the mem- brane=, or the cerebral substance, especially the former, is frequently perceived ; and the same re- maik may be extended to aged persons, in whom the substance of the brain is more liable to be affected, chiefly in a sub-acute or chronic form. That the division which 1 have made of inflam- mations of the brain, is founded in truth, and that their diagnosis may be established in prac- tice by a judicious and experienced physician, I have had numerous opportunities of proving at the Infirmary for Children, where the cases ad- mitted with inflammations seated within the head have been entered as cases of meningitis, cerebritis, or encephalitis, as the membranes, the substance of the brain, or both, respectively, were considered chiefly afi'ected. 176. It may be supposed, that the distinctions argued for, granting their accuracy, tend to little practical advantage. This is, however, a veiy serious mistake ; and I cannot more fully demonstrate it, than by the following fact: — About ten years since, I was requested to see a child, attended by an able and scientific practi- tioner, who considered the case as meningitis, which had terminated in effusion ; or, in other words, of acute hydrocephalus in its advanced stage, and perfectly beyond the reach of art. Alter an attentive consideration of its history and existing state, I expressed the opinion, that the disease was inflammation, chiefly affecting the substance of the brain, and that a decided treat- ment founded on these views might still be suc- cessful. Leeches applied behind the ears, and around the occiput, with the means which will be hereafter detailed, succeeded in restoring the child to health in a lew days. Since this instance, I have witnessed similar mistakes. The diagnosis, prognosis, and the treatment adopted in these cases proceeded on the impoitant fact already slated (<5 167.), that cerebritis will, owing to the turgescence of the inflamed organ, give lise at a very early stage of the disease to the most ])io- fouiid coma, relaxation of the limbs, and many of the symptoms occasioned by effusion of serum ; whilst the greater temperatiiie of the head, iintl strength of the j)ulsation of the carotids in the former, will often, inde))endently of other signs connected with the history of the case, evince its real nature. 177. Seat. — In the greater number of cases, inflammation commences in the pia mater, and extends itself to the arachnoiil on one side, and to the cortical substance of the brain on the oilier; BRAIN — Inflammation of the— Causes. 233 nnd not infrequently also to the arachnoid cover- ing the dura mater, nm] the deep sealed strurtures of the brain. It is also very probable liiat more than one of these dlFerent structures may be nearly simultaneously aflPected. It may, however, originate differently when it arises from external injury ; as in the dura mater, the substance of the brain itself, or the arachnoid. 178. I. Symptoms. — A. Preyvoyiitnry. Ence- phalitis generally commences with a sense of heat and fulness in the head ; frightful dreanis, and unquiet sleep ; forgetfulness ; confusion of ideas ; dimness of sight ; vertigo ; turgidity of the face and eyes, and moroseness of temper. 'I'iiese sym- ptoms generally precede tiie occurrence of chills or rigors, and are entirely absent when the dis- ease proceeds from external injuries. In children, unusual somnolency, or wakefulness ; startings in sleep, or fretfulness ; aversion from sudden or quick motion ; dryness of the mouth and nostrils, and not infrequently a voracious appetite^ are the chief precursory symptoms. 179. B. The invasion, or first stage of ence- phalitis, is indicated by severe chills or rigors, to which succeed a burning heat of the head ; ur- gent thirst; sometimes, even thus early, an un- natural absence of thirst, and violent delirium ; jactitation of the body ; intolerance of light ; fixed, pulsating, heavy, compressing, and most severe pain of the head, alternating frequently with stupor. Febrile heat rapidly increases, and the head becomes more turgid and hotter ; the eyes more prominent, suffused, watery, and in- tolerant of light; the pupils are contracted ; the eyelids are generally shut, or imperfectly open ; the eyebrows are knit, and the countenance is threatening and fierce. Hearing is quicker, is attended with ringing in the ears, and intolerance of sound. Epistaxis sometimes occurs, generally to a small extent, and with only transitory benefit. Insomnia, and delirium of various forms — morose, taciturn, furious, &c. — supervene; and, in pro- portion as the cerebral organs are excited, t*iose viscera which are supplied with the ganglial nerves are rendered torpid, the patient being insensible to the wants of the digestive organs. 180. C. The second, or advonced stage, is ge- nerally characterised by a marked diminution of the sensibility which was in the preceding period morbidly increased. The pulse, which was at first frequent, hard, and full, becomes slower, fuller, and softer, and, in some cases, quicker, smaller, or harder. The skin is dry; the urine scanty and high-coloured ; the tongue is dry, and loaded at the root; the bowels constipated. In some cases, particularly those in which the cere- bral substance is early and generally inflamed and turgid, instead of jihrenetic delirium, an apoplectic sopor, often preceded by convulsions, quickly supervenes ; with a slow pulse ; stertor- ous, slow, or laborious breathing ; turgid or bloated countenance; startings of the tendons; involuntary evacuations ; torpor of the senses, and flaccidity of the limbs. In those cases in which delirium is present, and the pulse quick and hard, a similar state of coma to that now men- tioned takes place sooner or later, if not averted by medical aid. In the one, the first stage is short and indistinctly marked ; in the other, it is long, and often continuing the greatest part of the vviiole duration of the disease; the second stage sometimes appearing suddenly, and ter- minating rapidly. In both these states of the disease, the difficulty of swallowing is great, so that fluids are sometimes regurgitated by the nose ; and when the substance of the brain is chiefly aflected, deglutition is often nearly, or altogether abolished in the most intense cases. In this stai^e, the pupil becomes at first dilated, and occasionally again contracted ; the patient, in some cases, squints, or has double vision ; his speech is often much afltcted, and his mouth is drawn to one side. Deafness also comes on, or increases, and the sopor, or coma, is more profound ; most pro- bably owing either to incipient effusion of fluid, or to greater turgidity of the capillaries and veins, or to both these combined, in a part or the whole of the encephalon. The comatose sym- ptoms appear early or late, according to the inten- sity of the disease, the extent to which the cerebral structure is afl^ected, and the tone and energy of the system. They sometimes partially subside, again recur, or alternate with convul>ions. As the disease advances to an unfavourable termination the pulse becomes remaikably quick, irregular, or mtermiitent. 181. D, Duration, — Encephalitis usually reaches its acme about the third or fourth day. It then continues in full strength for several days, exhibiting slight remissions and exacerbations, and simulating continued fevers. In favourable cases, a. change is sometimes observed on the fifth, seventh, or some other critical day, unless a fatal termination occur ; and is generally attended with either copious perspiration, or hemorrhage from the nose, free evacuations from the bowels, or a discharge of urine depositing a copious sediment. The disease may assume a sub-acute or a chronic form", presenting a diversity of symptoms, espe- cially in its chronic state, according; to the par- ticular part of the brain affected ; or it may proceed in a very slow, slight, and insidious manner, and escape detection until a dangeK)us or fatal chancre has taken place. The more chronic states may follow an imperfectly cured acute attack, and the latter may suddenly supervene on the former. 182. II. Causes. — A. Predisposing. The san- guineous and nervous temperaments; the epochs of mfancy, childhood, and youth — particularly lo meningitis; the period of dentition; advanced age — especially to cerebritis in a sub-acute or chronic form ; the male sex ; a large head and short neck ; children of scrofulous parents, and those who evince precocious talent or acquire- ments; persons subject to perspirations or erup- tions on the head ; early or iiabitual exertions of the mental powers ; the indulgence of the more active passions and affections ; encouraoe- ment of vindictive feelings; anger; continued watchings; venereal excesses; the use of spirits and narcotics, as opium, tobacco, &:c. ; a too warm state of the head ; suppression of epistaxis, hemorrhoids, or of any other accustomed secre- tion or evacuation ; the neglect of sanguineous depletion after the habit has been established • the healing up of chronic ulcers and eruptions, and other disorders of the brain, aie most fre- quently the predisposing circumstances and causes of the disease. 183. B. The exciting causes. — a. Those which act more directly on the encephalon, are blows, fractures, falls, counter-strokes or concussions of 234 Ihe head, all v/Iiich may not be followed, for many days, by any evident symptoms ; whirling chil- dren in the air, or tossing them in order to quiet them, or rocking them rudely in cradles ; the im- proper use of narcotics and stimulants in order to quiet tiiem ; the action of the sun's rays ; pro- tracted study ; excessive joy ; violent fits of an- ger ; excessive desire; jealousy, and all the ex- citing passions ; unusual exertion or irritation of the senses of sight and hearing; exostoses on the inner table of the skull, and the absorption of jmrulent or morbid matters into the circulation. b. The causes which act more remotely or indi- rectlii, are the diseases with which I have stated encephalitis lobe sometimes complicated (§ 186.); nervous or bilious headachs ; all painful affections ; mania; inflammations of the ear; disorders of the stomach, diaphragm, liver, and bovv-els ; affections of the sexual organs; ingurgitalion and intoxication ; the exanthemata, particularly when imperfectly developed on the external surface, or upon the disappearance of the eruption ; the me- tastasis of gout, rheumatism, and erysipelas; sup- pressed haemorrhages and evacuations, particularly the menses and the urinary secretion ; the accu- mulation of sordes and morbid secretions in the prima via and gall bladder; the ingestion of irri- tating and narcotic poisons ; indulging in cold punch (Fuank); vinlent fits of coughmg ; long exposure to great cold, and, according to Goelis, the too free use of helUulmna, and other narcotics, in the cuie of hooping-cough. 184. III. Diagnosis. — A. Characteristic sym- pioms. a. Pain is an early sign, but the patient often ceases to complain of it very soon, particu- larly if the cerebral substance be chiefly inflamed ; ■when it is also gravative, and attended with stupor from the commencement. It is most acute*when the membranes are aflected, and is always aggra- vated by shaking the head, and the erect position. When the disease supervenes in the progress of fevers and bronchial affections, pain may not be complained of, owing to the impure state of the Idood having blunted the sensibility, b. ]\'atch- fnliicbs and slcp. — Insomnia is generally present during the first days, when the membranes are aflected, and, in children, starling from sleep, and screaming. Heaviness, somnolency, sopor, or even coma, often preceded by convulsions, are early present when the substance of the organ is the chief seat, or the mend)rane3 extensively affected, and supervene early, but without con- vulsions, when the disease occurs in the cour.-e of fevers and bronchial affections; but a refresii- ing sleep is never enjoyed, unless alter a favour- able change, c. 'J'he senses, particularly sight, hearing, ansue may pro(;eed from any two, or the whole, of these changes being conjoined in the same case. The indications of an unfavourable termination are the persistence of the urgent sym- pioms after treatment; violent delirium, watchful- ness, and restlessness; profound lethargy or coma, or the alternation of these states; violent general convulsions, followed by coma, or alternating with it ; a morose delirium ; retraction of the head ; severe | ains of the limbs, followed by cramps. 236 BRAIN — Inflammation of the — Treatment palsy ; hffimorrhaoje from tlie contractions, or ears; difficulty or impossibility of deglutition; strabismus, or double vision; loss of speecli; slow- ness of pulse, followed by a sudden increase of frequency ; a trembling or irregularity of pulse ; obstinate vomiting, particularly of a greenish fluid; singultus, continued or recurrent; the ra- pid healing of chronic ulcers; the appearance of the disease in the course of other maladies, parti- cularly pneumonia, the exanthemata, and after apoplexy, and in the scrofulous habit, or in per- sons having an hereditary disposition to cerebral affections, or who have been recently affected by other maladies, 189. c, 'liie disease may pass into an obscurely chronic form, which together with the effects produced by its antecedent state, may give rise to paralysis, epilepsy, various states of mania or mental disturbance, idiotcy, &c. In these cases, many of the chronic changes which have been described as occasionally found in either the mem- branes or the substance of the brain, particularly liiose wiiich affect parts only of these structures, liave taken place, as softening, abscess, induration, tumours,ossificformations,&c.(§50. 71.102,^c.). 190. d. When encephalitis arises from rheu- matism {Encephalitis Rheumatica, J. Frank), the membranes, particularly the dura mater and arach- noid, are chiefly affected ; and the danger has been considered, upon the whole, less than in other states or relations of the disease. The disposition, however, to effusion, and to many of the chronic organic changes described as frequently found in the membranes, is great. It often assumes a sub-acute or chronic form, and is usually at- tended with great distress, but is without delirium. The goiitij form of encephalitis generally is ob- served in older persons than the rheumatic; is accompanied with much disorder of the stomach, liver, and bowels, and with deficient vital power ; and is hence a more dangerous state of the dis- ease. The same remark is applicable to its oc- currence from the extension or suppression of erifsiiielus. In these, the re-appearance of rheu- matism or gout in a joint or extremity ; the erup- tion of the erysipelatous inflammation in any part of the surface, even in the face (J. P. Fhank) ; the supervention of diarrhoea, the hajmorrhoidal flux, or any other discharge ; are favourable cir- cumstances. Encephalitis, occuriing after the rlisappearance of the erupiion in the exanthemata, or duiing the course of typhoid or epidemic fevers, or pulmonary diseases, or after attacks of apoplexy, jjaralysis, epilepsy, or mania, is much more ddngerous than when appearing in a primary form, owing, 1st, to the depressing of the vital and nervous powers; 2d, to tlie vitiated state of the circulating fluids; and, 3d, to the silent and in- sidious manner in which the di-ease of the brain often advances to disorganisation in these com- plications. According to llui j;i.ani), encepha- litis, supervening on the disappearance of the variolous eruption, is generally faial. The alter- otiims nf structure occasioned hq encephalitis are fully described in pieceding sections of this article (§ 11. el seq.). 191. VI. TiiKA-iMiNT. — A. Of the idiopathic and simple encephalitis. It must be evident that the treatment siiould be the same, whether the membranes or the substance of the brain be chiefly, or entirely, the seat of disease. 'J he cinaes, the age, the habit of body, and apparent state of vital power, are circumstances which ought to be duly considered when adopting the means of cure, or determining upon the extent to which they ought to be carried, a. The antiplilogistic treatment, in all its departments, must be rigor- ously enforced. Some discretion is, however, required as to the extent to which it should be carried, and the direction, choice, and adaptation of the individual means of which it consists. In ordinary cases, bleeding from the jugular vein; cupping between the shoulders, nape of the neck, behind the ears, or occiput; leeches applied in those latter situations, and bleeding from the arm, are upon the whole the preferable modes. Ar- teriotomy 1 consider to be attended with no ad- vantages ; and in this 1 am supported by the opinion of Hildenbhand and others ; but bleeding from the feet, from the hemorrhoidal vessels, and from the groins and insides of the thighs, are undoubtedly preferable when the disease arises from metastasis or the interruption of discharges, especially when conjoined with the treatment I shall presently describe as appropriate to those states. Hildenbhand, and several other German physicians, recommend the application of leeches to the insides of the nostrils, when the patient has been subject to epistaxis, or if a disposition to criti- cal epistaxis be evinced. As to the extent to which depletion should be carried, no precise opinion can be given. It should be regulated according to the circumstances of the case, and its effects upon the circulation, and be conducted in the manner I have recommended in the article on the Falhologif of tlie Blood (§ 64.). It ought never to be relied on alone : other means should be simultaneously, or subsequently employed, with the view of diminishing local and general action, and thereby preventing the removal of more blood than may be indispensable. 192. b. The hair should be removed from the head as soon as possible, and a stream of cold ivater poureil upon it from time to time, or every second or third hour, until the temperature be reduced to the natural standard ; and, as morbid heat soon returns, cold epilhems, or evaporating lotions, or even pounded ice enclosed in a bladder, should be constantly applied in the intervals be- tween the cold affusions, and the head be kept elevated, and phiced upon a thick oil-skin, or, what is still better, upon a piece of common painted floorcloth, as long as increased action continues. Cold applications or affusions may, however, be injurious if too long persisted in. They ought never to be continued after the tem- perature is depressed to the natural standard, or a little below it, particularly if sopor or coma be present; and as soon as the heat returns, they should be again resumed. Simultaneously witii the affusion, the feet and legs should be immersed in warm water, or in warm water made irritating by means of salt and mustard, and the saphena vein be opened. In some cases, par- lic.'uhirly when suppression of the menstrual or haimorrhoidal dischnrge has preceded the attack, semicupium or hip-bath, may be substituted for pediluvia. 193. c. The immediate exhibiiion of r«(/i«r//f5 should not be neglected. From ten to twenty grains of calomel may be given at once, and three or four iiours afterwards, an active purgative BRAIN — Inflammation of the — Treatment. 237 drauglit, which should be followed by cathartic enemata, particularly the En. Ccithart. and the Eh. Terebinth. (F. 141. and 150 ). By these, or similar means, a copious action of the bowels should be procured and continued. \\'itii this latter intention, ])ill3 calculated to promote the abdominal secretions may be «-iven each night, a purgative drauglit the following morning, and an enema subsequently, if it be necessary. Calomel combined with digitalis, or with antimony, should be prescribed in full and frequent doses, in addi- tion to the above, so as to cliange the state of mor- bid action, particularly when tiie membranes are chiefly aflected. The following, or similar medi- cines, may be used, and iheir effects carefully watched : — No. 55. R Calomel, gr. iij. — x. ; Piilv. Jacobi Veii gr. iij. ; Pulv. Digitalis (vel Pulv. Colchici) gr. j. — ij. ; Syrup. Simp. q. s. M. Fiaiit Pilute ij. vel iij. tertia, quinta, vel sexta quaqup hora porrigciid^. No. -56. R Hydrarg. Chloriiii gr. iij. — vj. ; Pulv. Jacobi Veri gr. iij vj.; Extr. Coloeynth. Comp.gr. vj.; Syrup. Simp. q. s. Fiant Piliilae iij. hora somni sumend;e. No. 57. R Infusi Semite Comp. 3jss.; M.ignes. Sul- phatis" 3ij. (vel Potassse Tart. 3j/>s.); Vini Aiitimon. Pot-Tart. 3ss.; Tiiict. Jalap. 3 j. 'I'iiict. Cardam. Co.3j. M. Fiat Haustus, prime mane sumendus. 194. d. In addition to these means, the fre- quent exhibition of refrigerants and saline medi- cines, especially those consisting of the liquor ammna. acet., potasste nit., antimunials, &c., will be of much service. 'J'iie preparations of anti- mony, judiciously exhibited, have a remarkable influence in diminishing determination of blood to, and inHammatory action in, the brain ; and I believe that the effect will be more decidedly beneficial, if their operation as an emetic be carefully avoided. Form. 24. 359. 406. 436. 456. and 854. are of the above description, and, as well as others of a refrigerant and diaphoretic nature, may be employed, in small or moderate and frequently repeated doses. I may state, as the result of considerable experience, that I have found the saline refrigerants and antimonials most beneficial during the early stage of the disease, and where the membranes were chiefly inflamed. In the stage of coma, or when the substance of the brain itself is alFected, and the pulse is quick, weak, small, trembling, or iire- gular, antimonials are not admissible ; the prepa- rations of camphor, with liquor ammon. acet. and spirit, tether, nit., being preferable. (See F. 405. 436. 441.) 195. e. Sedative and diuretic medicines, parti- cularly colcliicum and digitalis, combined with the liquor a]nmoniiE acet. and moderate doses of camphor (F. 395.^00. 514.), are extremely useful in the early stage of the disease, after de- pletion and the free evacuation of the bowels. In the advanced stage, however, much less ad- vantage will be derived from them. After blood- letting has been carried as far as may be tiiought judicious, and if much restlessness and jactitation be present, great advantage will be derived from tiie exhibition of a moderate dose of camphor, hy- oscyamus and James's powder, in this or any other appropriate form : — No. 58. R Pulv. Jacobi Veri gr. iij. — v. ; Camphorre ras* gr. ij iv. ; Extr. Hyoscyami gr. iv. — vij.; Syr. Papav. q. s. ut fiant PilulcB iij.stalim sumendas et li. s. repetendjp. No. -59. R Mist. Camphorse 3j. ; Liq. .'Immon. Acet. 3ij.; Si)irit. ^the'-. Nit. 3ss.; Tiiict. Colcliici Semin. m xij.— XX. ; Syrupi Papaveris 3 j. Fiat Haustus, tertiis vel quartis Ir ris capiendus. 196./. Derivatives and cininter-irritanis are useful in many cases, when judiciously prescribed. In the early stage of the disease, and whilst great iiritability or delirium is present, they are often prejudicial, excepting simple pediluvia, the semi- cupium and hip-baili, employed simultaneously with cold applications to the head. Great mis- chief has arisen from ordering blisters and mus- tard poultices too early in inflammations, but more particularly in encephalitis, whun, instead of deriving tlie circulation from the inflamed part, they excite the nervous and vascular systems ge- nerally, and thus react upon the disease. It is chiefly in the latter stage, when sopor or coma is present, that benefit is derived from them. Some difl^erence of opinion has existed as to the part to which they — particularly blisters — ought to be applied. If the coma be profound, some writers have advocated the application of blisters directly to the scalp. Without denying the possibility of circumstances arising to justify tliis practice, I believe that they will seldom occur. The most profound sopor, weak action of the carotid*, a not remarkably frequent pulse, and a temperature of the head mucii and permanently below the natural standard, would only influce me to apply blisters to the scalp. When deriration can be attempted with safety, — when sopor is present, and morbid sensibility and irritability has nearly disappeared, and depletion has been carried as far as seems judicious, — a large blister to the nape of the neck or between the shoulders, or over the epigastrium, mustard poultices to the insides of the legs or thighs, or irritating liniments (seethe Liniments in the Appendix) in the latter situ- ation*, will often be used with advantage. The sonicupium, icarm hath, or pediluvia, are seldom of service when there is much general febrile excitement, paiticuiarly in children, unless when used simultaneously with cold aff"u-ion on the head. But when the lower paits of the body have their temperature reduced below the natural standard, and when the disease has appeared after suppressed discharges, &c., they are often of service, and may be made more revuhive by salt or mustard. 197. g. Various remedies have been recom- mended in the treatment of this disease, in a more particular manner than others. Amongst these, the mo>t generally employed and most beneficial is calomel, when given in large and repeated doses, and judiciously combined, and until an impression is made upon the disease, or state of the circulation. In the meningitis of children, this practice is particularly requisite, as, without it, but little impression will often be made on the disease ; and, with due attention, but little risk will be run of experiencing unpleasant results from it. Where we dread impending exhaustion, the calomel may be combined with small doses of camphor and ammonia, and a less restricted regimen allowed. INI aucus recommends strongly very large doses of nitre, which may be combined with antimony, or with diuretics; IIkogewiscii, the ])reparations of inercury carried to the extent of salivation ; CiiAussiEn, the horacic acid, very nearly as prescribed in F. 343. ; several phy- sicians in Italy and in Switzerland, especially Breua, ToMMASiNi, Pesciiieii, Laennec, &c., large and frequently repeated doseso( ihe potass io- tartrate of unlimony so as to act upon the bowels j 238 BRAIN — Inflammation of the — Treatment. LoEFLER (Htifelani.Vs Journ. der Pract. Arzneik. b. iii. p. 694.), fiee iiicisimis of the scalp ; iinJ AnF.T/Eus (Curat. Aciit. 1. i. ch. 1.), Cei.sus (1. iii. ch. 18.), C/F.Lius Aurelianus (p. 30.), and Zacutus Lusitanus (Med. Fr. Hiit. 1. i. p. 85.), scarifications and cupping in the same situation. All these are undoubtedly advan- tageous, when judiciously prescribed. Besides these there are remedies wliich are very generally employed, and which are beneficial in certain states of the disease only ; these are, camphor, digitalis, hyoscyamus, opium, &c. In the early stage, camplior, unless in very minute doses, is ])rejuilieial : but when sopor or coma is present, when depletion has been duly practised, the heat of the head has subsided, the energies of life are depressed or exhausted, and the symptoms are ap- parently the consequence of the lost tone of capil- laries of the brain, moderate and frequently re- peated doses of this medicine are almost indis- pensable ; particularly in the complications of the disease with typhus, or epidemic fevers, with gout or rheumatism. Vigilalis as well as colchicum are principally required in the early stage, when either of them may be combined with cabmel : if exhibited subsequently, they should be given with camphor, and their eflects carefully watched. Both these medicines may be advantageously combined with aperients or with diuretics. Brera recommends digitalis as follows in the earlier stages of the disease : — No. fiO. R Pulv. Fol. Digitalis gr. xvj. ; Hydrarg. Chloridi gr. x. ; Pulv. Had. Gljcyrrli. 3j.; Olei Jiiiii|i. q.s. M. Fiant PUuiae viij. Capiat biuas teitiis vel quartis noris. The combination of camphor with colchicum is often of service in the gouty and rheumatic furms of the disease. I found it recently of much ad- vantage in a severe case of the latter. 198. Narcotics ought generally to be avoided ; yet there are states of the disease, chiefly in adult and aged subjects, which are benefited by them. When lelhaigy or coma, or an obvious disposition to either, is present, narcotics are injurious, par- ticularly in cerebrilis; but when the membranes are obviously most aftected, and the disease pre- sents much of the phrenitic character; when great iriiiability, mental excitement, or exhausting watchfulness is present, particularly alter deple- tions and other evacuations have been carried as far as seems judicious, and the pulse has been reduced, or become less febrile ; a full dose of /((/osfyu)»ws,or even theprepaiationsofcii/iim, par- ticularly the acetate or hydio-chlorate of morphia (F. 315. 674.), the compound tincture of opium (F. 723, 729.), or Battlers sedative li([Uor, may be exhibited. In cases where the propriety of having recourse to these medicines admits of doubt, they should be combined with moderate or full doses of camphor (F. 554. 787.), or the Spiritus ^Elher. Sulph. Camp. (F. 375.) No. 01. R Camphora: rasa? gr. j.— iv. ; Cum. Aoacix, Sacchari Albi. aa .3 ss. ; IVlagiics. Caib. 3j.; Dcciicti Al- thaea; 3jss.; .Spirit. 7I-;tli(T.Siil|ih Coirip.; Tiiict. Hyoscy- aiiii.aa .3j. (vul Tinct. Opii Comp. F. 7-'J. 5sf.) M. Fiat Ilaustus. 199. B. Treatment of the complicated billies. — There are certain consecutive and complicated forms of the disease which refjuire a somewhat modified treatment. — a. The rheumatic ence- phaliti-<, according to .1. Frank, does not admit uf cold iq)plicationsto the head; in other respects, the means of cure do not differ from those already stated. I believe that, in its advanceil stage, the application of a blister to the scalp is more likely to be of service in this than in any other form of the disease ; and the same remark may be ex- tended to the use of colchicu7n a.nd camphor — the latter of which may sometimes be advantageously combined with the potassio-lartrate of antimony or James's powder. 200. b. In the arthritic complication, after ge- neral and local depletions, — the latter chiefly on the right hypochondrium, ha^morrhoidal vessels, and insides of the legs, — followed by active purging, stimulating and irritating pediluvia, sinapisms and blisters ajiplied to the lower extre- mities, and colchicum combined with the car- bonates of the fixed alkalies, and diuretics, are chiefiy indicated. 201. c. When encephalitis occurs in the co»)se of fevers, or when it is seated chiefly in the sub- stance of the brain, and assumes a typhoid charac- ter, from the depressed state of the vital povver.s, either at the commencement or in consequence of treatment, the infosions or decoctions of arnica, senega, or serpenturia, have been recommended by the German writers, after depletions liave been carried as far as seems prudent. When the dis- ease is thus complicated, depletions should be employed with caution; and those which are local and derivative ought to be preferred, reinilsants being simultaneously prescribed ; cold applications to the head require equal caution. In the early stage of this complication, J. Frank recommends a combination of camplior, cinnabar, and nitre, every two hours. The first of these is amongst the best medicines we possess in every stage of such cases ; but it should, in the advanced periods, be exhibited in larger doses than early in the dis- ease ; and it may often be advantageously com- bined with calomel. A similar treatment is ap- plicable when the disease appeare in the course of bronchitis and other pulmonary diseases. 202. (/. The eriisipelalous complication of en- cephalitis often re(iuires a more antiphlogistic and depletory treatment than the typhoid form of the disease ; but such is not uniformly the case. I conceive that deep and large incisions into the scalp, particularly over the occiput, as recom- mended by Loi FLER, would be more applicable to this stale of the malady than to any other, es- pecially if there be much tumefaction of the scalp or counter.ance. When encephalitis follows, or is complicated with apople.iy, the treatment diflTers in no respect from that which has been recommended for the primary form of thaakisease. Incisions or scarifications of the scalp may be also practised in this complication. 203. e. 'J he su])ervention of encephalitis on in- flammations of the digestive mucous suiface is not infre(;uent in children : and in diseases of the liver in persons of middle age, or advanced in life. In these cases the treatment is not mate- rially different fiom that already advised. Local depletions over the region of the liver ; full doses of calomel, so as to affect the mouth ; cold af- fusions on the head, particulaily in the former state of complication ; external and internal revul- sants and diuretics; are generally indicated. 204. f. 'I he appearance of the disease after irrilaling and narcotic poisons, paiticularly after cpium, aconitum, belludoiina, ike, is not iutre- BRAIN — iNrLAMMATION OF THE TREATMENT. 239 quent. These occasion, first, congestion, and I decidedly on the abdominal secretions ; and was atierwards inHammatory action. In encephalitis repeated eveiy hour until three were taken. from these substances, vascular depletions, cold affusion on the liead ; emetics, or the introduction of the stomach-pump ; camphor or arnica, com- bined with antimonials or aperients ; external derivatives, and active purging, are amongst the chief means of cure. 205. C. Of the treatment of the more unfa- vourable and anoniaLms stales of the disease.—- The practitioner, although he will very fre- quently, or even generally, find the treatment described above successful, may sometimes meet with cases in which the symi)toms persist, not- withstanding repeated depletions, and the other remedies prescribed ; the energies of life being more or less depressed ; the pulse becoming very rapid, irregular, trembling ; the coma or stupor more profound, and the temperature, even of the head, much diminished. lie may or may not have had recourse to derivatives, but in either case tiiey may be continued or varied ; and camphor, musk, valerian, ammonia, Hoffmann's anodyne, and other restorative medicines, va- riously combined, may be exhibited. If the pulsation of the carotids and temperature of the head be not in such cases increased — or if they be diminished, and the energies of life be obvi- ously depressed or exhausted, both in the affected organ and throughout the system — the above dif- fusible stimulants will often be inefficacious. In this case, the infusion of the flowers of arnica, or the infusion of serpentaria, either simply or com- bined with cinchona ; camphor, in larger doses, and given occasionally with calomel and small doses of opium; active frictions of the surface and lower extremities with rubefacient liniments, and in some instances, particularly if effusions between the membranes be suspected, with mer- curial liniments, or inunction of the scalp, are the principal means that can be adopted. But if, notwithstanding those, the above symptoms con- tinue or increase, — the evacuations being invo- luntary, and the patient unconscious of them ; a vomiting, or rather a pumping up, of whatever is taken into the stomach, with singultus and an intermitting, trembling pulse, that cannot be dis- tinctly counted, being also present, — are we to continue to give the medicines which we have found inefHcacious, thus leaving the patient to his fate, or are we to resort to still more active means 1 There can surely be no hesitation as to the part which ought to be taken. In a case of this descrip- tion, consecutive of bronchitis, in a robust man of middle age, who was attended by IMr. Faxom, Dr. Bree, and myself, after depletions and cold appli- cations had been carried as far as it was judged prudent, and blisters were applied on the epigas- trium and nape of tlie neck, without benefit, lull doses of calomel and camphor were given, the following medicines prescribed, and their action promoted by the enema terebinth. (F. 151.) : — No. 62. R Camptiorae raSi-B gr. iij.; Aramoniae Sesqiii- Carbon. gr. iv. ; Mucilag. Acaciie q. s. Fiant PiUiliiiiinil, in Diet, des Seioiices Med. t. viii. art. I)ri//,iirr. I Cysls conlaitii/ig li/iic in pia mater.) — Asprcy, in Lond. Med. and I'liys, Jonrii. {Bony con- cretions on each side.) — Nasse, Zeitsdirift f. Anthopo- logie, 1823. p. II. <\\G. — Bnrdac/i, Beitriige, &c. b. ii. p. 107. 2H7. (Hydatids, 8;c.) — Earle, in Med. Chirurg. Trans, vol. xiii. No. 18. — Hooper, iVIorbid Anat. of the Human Brain, 4to. London, 1828. — Abercromhie, On the Brain, &c. Edin. 1828. — Monro, Morbid Anatomy of the Brain in Hydrocephalus, &c. V.iXh\.\fi2^.— Bright, Medi- BRAIN — Diseases of — Bibliog. and Refer. 243 cal Reports, vol. li. p. 680, et seq. — J. Davies, in Lond. Med. Kepos. vol. xxiii. p. !.■>. — Piurry, in Med. Chir. Rev. vol. xxviii. p. 252. — Pict,m Encyclographie des Sc. Med. June, 1837. B. p. 177.— Lf?«o!nt', in Ibid. July, 1837. G. p. 100. — J. Qiuiin, Cyclop. Pract. Med. vol. i. p. 282. iii. Alterations of its .Simises and Veins Blasius, Observat. Med. rarior. Ephemer. Nat. Cur. dec. i.ann. ix. et X. obs. 25., et dec. iii. ann. i. p. 107 Stoll, Katio Medendi, vol. i. p. 217 IVichinann, Idian zur Diagnos- tik. b. iii. p. HI Lieutaiid, Hist. Anat. Med. 1. iii. obs. \Gi.— Portal, Anatomie Medicale, t. iv. p. 22, et seq, — Abercrombie, Edin. Med. and Surg. Journ. vol. xiv. p. 577.; and Diseases of the Brain and Spinal Chord, 8vo. p. 44. — M. Ribcs, Revue Medicale, t. iii. 1825. — .,1/. L. Tonnelle, Memoire sur les Maladies des Sinus Veineux de la Dure Mere, in Journal Hcbdomadaire de Med. t. v. p. 337 Hooper, Morbid Anatomy of the Brain, 4t8. Lond. 1828 Cruveilhier, Anatomie Fathologique,8ieme livr. Paris, 1830. II. Diseases of the Substance of the Brain. — i. Ce- BEBRiTis. Inflammation, and its consequences, S;c. — J. C. Brendelii, Resp. Ellenbergeri de Phrenitide. Goet. 1756. — Schroeder, De Indole et Sede Phrenitidis et Para- phrenit. Goet. \7G5.— Stoll, Ratio Medendi, par. iii. sect, iii. — Fischer, De Cerebri ejusque Memb. Inflammat. et Suppur. occulta. Goet. 1787 iV. Nicholls, Pract. Re- marks on disordered States of the Cerebral Structures of Infants, 12mo. Lond. 1821 Marcus, Entwurf einer Spe- ciellen Therai)ie, t. ii. p. 554. — Z). A. G. Kichter, Die Specielle Therapie, b. i. p. 44.5. — Hiidenbrand, Institut. MedicEe Pract. t. iii. p. -^5 J. Fraiik, Praxeos Medicae Univers. Prsecep. vol. i. p. ii. sect. i. p. 211. — J, C.Pritch- ard, in Med. Gaz. vol. xviii. p. 871. ii. Abscess ob Suppuration op the Brain. — Bartholin, Hist. Anat. Med. Cent. ii. Hist. 34., et C. vi. Hist. 13.— Camerariits, De Vomica Cerebri. Tiib. 1711 — Thoner,\n Halter's Biblioth. Med. Pract. vol. iii. p. 22 Lieutaud, Anat. Med. 1. iii. obs. 1131 Bianchi, Stor. Med. d' un Apostemanel Cerebello. Rim. 1751 i{f««s, Repert. Com- ment, vol. xii. p. 78., et vol. xv. p. 107. — Lallemand, Letters ii. iii. and iv. passim. — Horn's Archiv f. Med. Erfahr. 1813. March and April, p. 238. (Several instances of, in the cerebellum, also with erosion of the bones.) — Lajigier, Recueil de Med. et Chir. Milit. t. viii. p. 179.1820. (Cerebellum.) — Bush, in Lond. Med. and Phys. Journ. Dec. 1823. — Hamilton, in Trans, of Med. and Chir. Soc. of Edin. vol.! Dickson.in Lond. Med. Repos., Oct. 1824. — Cruveilhier, in Nouv. Biblioth. Med. Nov. 1826 — Frank, Inter. Clin. vol. i. p. 142. — Itard, Traite des Malad. de rOreille, &c. p. 70. Paris, 1821 Duncan, in Edin. Med. and Surg. Journ. vol. xvii. p. 331. {Opened through the sphen. and temp, bones.)— Otto, m Selt. Beob. part ii.p. 96. (Six cases.) — Pretty, in Lond. Med. Repos. by Ccpla7td, vol. XX. Sept. 1823. (Opened through the frontal bone.) — C. J. Frank, in Ephem. Nat. Cur. dec. ii. an. vi. obs. 193. (Discharged by the nose through carious sphen. bone.) — Syme, in Ed. Med. and Surg. Journ. July, 1828. (On the forehead.)— Raikem. Repert. Gen. d'Anat. et de Physiol. Path. vol. i. No. 2. p. 295. (Discharged through petrous and sphen. bones and nose.) — For various other references to abscess in different parts of the brain, some of them in connection with inflammation of the internal ear, others passing through fistulous openings in the skull, see the article Cerebrum, in Ploucquct's Medicina Digesta, and Otto's Compendium of Pathological Ana- tomy. iii. Softening Roslan, Rech. sur une Maladie encore Inconnue, &c. Paris, 1820. ; et Traite de Diagnostic, &c. vol. ii. Paris, 1827. — Cruveilhier, La Med. Eclairee par I'Anat. Pathol, cah. i. Paris, 1821. — Lallemand, Rech. Anat. Pathol, sur I'Encephale, &c. lettre i. et ii. Paris, 1820. — A. G. Herbst, De Eniephalomacia. Halae, 1825. — Burdach, Vom Baue des Gehirns, vol. iii. p. •'534. (Con- tains numerous cases, original and quoted.)— Guibert, in Rev. Med. March, 1828. — Foville, art. Encephale, in Diet, de Med. et Chir. Prat. t. \\\.— Cruveilhier, Op. cit. iv. Sphacelus. — Lyserus, De .Sphacelo Cerebri. Lips. IG.56.— -W. Cristin, Revue Med. t. ii. p. 302. 1825.— G>e- ding, Samnitl. Medic. Schrift. b. i. p. 306. Gangrene is ob- viously a post mortem change, as death must take place before it could supervene as a consequence of acute in- flammation. It may however occur alter severe wounds, or injuries of the head, particularly in hospitals, when hospital gangrene is prevalent ; as in the case recorded by iNIr. Copland Hutchison. See Pract. Observat. on Surgery, 2d ed. p. 203. v. Hvi'ERTUorHY. — Hallcr, Element. Physiol, vol. iv. p. 10 Hebenslrcit, in Halter's Coll. Dissert. .'\nat. vol. vi. p. 335. — Penchienati, in Mem. de Turin, vol. iv. p. 118. — MeckeVs Handbuch der Pathol. Anat. b. i. p. 298.— Scoutettcn, in Archives Gen. de Med. t. vii. p. 31 — Otto, in Selt. Beob. part i.p. 106. — Dance, Journ. des Progres des Scien. Med. t. xi. p. 'ai.—Jadelot, in Journ. de Med. t. vi. p. 3.—Hufeland, Rev. Med. t. i. p. 130. 1825.— i'or- tal, Ohserv. sur la Nature et Traitera. de I'Epilepsie. Paris, 1827. vi. Htpertbophy of Pineal GtxtiD. — Mangel, Theat. Anat. 1. iv. c. ii. p. 309 Morgagni, Epist. i. 14., x. 17., xxi. 24 Lieutaud, Hist. Anat. Med. 1. iii. obs. 177—210. 381. — Desportes, Hist, des Malad. de St. Domingue, vol. ii. p. 209. — Angeli, Osservaz. INled. Prat, et Chir. Imol. 1793. vol.i. p. •n. — Greding, Sammtl. Med. Schrif- ten, &c. b. i. p. 318. — Blane, Trans, of Soc. for Improv. &c. Lond. vol. ii. p. 16. vii. Hypertrophy, S.c. of Pituitary Gland. — De Hacn, Rat. Med. vol. vi. p. 211. — Grcding, p. 282.— Horn's Archiv f. Med. Erfahrung, 1815, par. iii. p. 463. — Baillie, Morbid Anatomy, 4to. ed. p. 460. — Oppcrt, De VitJis Nervorum Organicis, p. W.—Ward, in Lond. Med. Repos. p. 217. vol. xx. — Bullier, in Archives Gener. de Med. Oct. 1823, p. 302. — Bayer, in Ibid. Nov. p. 350.— Neumann, in Hufeland Journ. No. 45. p. 46. July, 1824. — li'enzel, Beobacht. iiber den Hirnanhang fallsiichtiger Personen, 4to. Mainz. 1810, p. 74. ; et de Penit. Struct. Cerebri, p. 114. viii. Atrophy Willis, Cerebri Anat., in Opera Omnia, 4to. Amst. p. 14. — Morgagni, Epist. ix. 20., xL 1 1., Ix. 4 — Rocderer, Observ. de Cerebro, p. 5. Got. 1758 — Sandifort, Museum Anatomicum, vol. iii. p. 305 Otto, Selt Beob. part i. p. 106. — Kaltschnzid, in Halter's Disput. Pathol. vol. vii. p. 484 Mier, in Samml. Auserl. Abhandl. b.xi. p. 214. — Meckel, Anat. Phys, Beobach. und Untersuch. &c. p. 135. 1822 — Glover, in Philad. Med. Journ. vol. ii. p. 1 — Saveresy, De la Fidvre Jaune, p. 158. — Horn, Ar- chiv f. Med. Erfahrung, b. xxii. — Biermayer, Mus. Anat. Path. No. 247. — VVenzel, De Penit. Cerebri Struc- tura, p. 102. et 136. — Cazauvieilh, Archives Gen. de Med. t. xiv. p. 582. ; Edin. Med. and Surg. Journ. vol. xliv. p. 527 — Cruveilhier, Anat. Tath. passi7n. ix. Induration. — Morgagni, Epist. viii. el seq., Epist. Ixi. 8 Meckel, in Mem. de I'Acadcm. de Berlin, 1766. — Lallemand, Opus. cit. lett. ii. etiii Portal, Cours d'Ana- tomie Medicale, t. iv. p. 90 P;MW,fils,Recherches d' Ana- tomie Pathologique, sur rEiidurcissement du Systeme Nerveux. Paris, 1822 ; et Recherches sur les Causes Physique de I'Aberration Mentale, in Magendie's Journ. de Physiologic, No. i. p. 44. 1826 Heusinger, in Zeit- schrift fiir Organ. Physik. p. 382. April, imS. — Bouil- land, Sur I'lnduration Generate de la Substance de Cer- veau, consideree comme un des Effets de I'Encephalite Generale Aigue, in Archives Gener. de Mtd. 1825. — Abercrombie, On the Diseases of the Brain, &c. 2d edit. Case 18. — Craigie, Elementsof General and Pathological Anatomy, p. 438. Edin. 1828. — Andral, Anatomie Pa- thologique, &c. t. ii Hooper, Morbid Anatomy of the Human Brain, 4to. p. 16 l>oiid. 1828.— BrigAZ, Medical Reports, vol. ii. ; and Diseases of the Brain and Nervous System, p. 664. Lond. 1831. X. Tumours. IniheSubstanceof the Brain. — Mo}-gagm', Epist. Iii. 15. (Scirrhics in cerebellum.) — Meckel, in Mem. de I'Acad. de Berlin, 1754, p. 74. (Scirrhus) ; Ibid. 1761, p. 61. {Scirrhus cerebeUi) ; Ibid. 1764, p. 84. (Scirrhus.) — Holier, Oper. Minora, vol. iii. p. 282. (Scir- rhus cerebelli.)—Baader, in Sandifort's Thesaurus, vol. iii. p. 38. (Fatty.) — Gendri7i, Sur les Tubercles du Cerveau et de la Moelle, &c. 8vo. Broch. Paris. — Zinn, in Com. Soc. Reg. Sclent. Gott. vol. ii. 1752 LeveilN, Recherches sur les Tubercles du Cerveau. Paris, 1824. — Burdach, Vom Baue u. Leben des Gehirns, b. iii. p. 643 Chomel, in Nouv. Journ. de Med. Mars, 1818, p. 1 Rose, in Lond. Med. Repos. No. Ixi. p. 12 — Latham, in Med. and Physical Journ. July, 1826 Bouillaud, Traite de I'En- cephalite. Paris, 1825. (Scirrhus.)— Cruveilhier, in'SoM\. Biblioth. de Med. Nov. 1825 j et Anatora. Patholog. liv. ii. pi. vi. (Fatty tumours.) — Hawkins, in Med. and Pliys. Journ. July, 1826 i/orw, in Archiv f. Med. Erfah. March and April, 1813, p. 23S. — Nyslen, in Bullet, de la Facult. de Med. 1816, p. 183 Biermayer, Mus. Anat. Patholog. No. 74. (Scirrhus.) — Meckel, in Archiv f. d. Physiol, b. iii. p. 190. (Fatty.) — Tacheron, Rech. Anat. Path. vol. iii. p. 45. and 381. (Tubercles.)— Ward, in Lond. Med. Repository, vol. xx. p. 217., and April and June, 1824. (Pituitary gland, and in cerebellum.) — Bcll- mer, De CerebeUi Degenerationibus. Bon, 1825. (Tu- bercles, ^c.) — Berg, De Tumor, et Ossificat. CerebeUi. Lips. 1826. (Osseous, SiC.) — Bergmann, in Mende's Beob. und Beinerk. &c. b. iii. Gott. 1826. (Calcareous.) — Mayer, De Tumoribus Cerebri, 4to. plates. Berol. 1829. — Otto, Selt. Beobach. part i. p. 107., part ii. p. 94. &c. (Eight instances, scrofulous and steatomatous .) — Scheider, De Encephali Destructione, kc. Berol. 1823. {Steatoma- tous)— Fantoni, Opuscul. Med. et Phys. p. 22- {Hy- gro7na.) — Berdot, Acta Helvet. Phys. Sled. vol. v. p. 183. (Hygroma.) — Portal, Anatom. Meil. vol. iv. p. 41. (Hy- groma.) — Ueiitdoif, De Hydatidibus in Corp. Human. prses. in Cerebro rrpertis, p. 36. Bcr. 1822 Bailey, in Lond. Died Repos. Feb. 1826. — Otto, \'erzeichn. No. 2891. (Fatty tumour in the hemisphere, containing hair.) — Ozanam, in Journ. Complein. du Diet, des Scien. Med. t. xix. p. 189. (Tubercles.) — Wardrop, On Fungus Haematodes, &c. passim. ( Fungus hwmatodes. ) — Hunter, Trans. Med. Chirurg. Soc. vol. xiii. p. 1. and 88. {Medul- lary sarcoma.)— Rambclli, Archives Gt'n. de Med. t. xvli. R 2 BRONCHI AND AIR-PASSAGES — ALXEnATioNs of the. 244 p. 97. [Scirrhus.') — Btifour, in Ibid. t. xvii. p. 242. — VVedemeyer, in Rev. Med. t. i. p. 134. ]S26. — Balli/, in Ibid. t. Hi. p. 35. 1224. {Ci/sts in.)— Otto, Selt. Beobach. part ii. p. 90 ; and Verzeichn. &c. (Three cases of fun- g7is h(Ematodes.) — Bright, Medical Reports, vol. ii. p. (i-if^.—Abercrombie, On the Diseases of the Brani, &c. p. i2H. — Calmiel, Jouin. Hebdom. de Med. t. i. p. 44. {Hydatids.) „. ^ xi. Rtji TOKE OF THE Braiv.— M'cAW, Vom Himbruche in Handb. der Pathol. Anatoin. t. i. p. 302. ; Ibid, in Ar- chiv fiir die Physiologie, vol. vii. p. 139. ; et Rathke, in Ibid. t. vii. p. 481. — Walter, Museum Anatora. Berol. 1803, p. 275. — Osiander. in Gotting. Gelchst. Anzeiger, 1812, No. c\x\\x. — Beclard, Bulletin de la Faculte de Med. t. iii. p. 292. iutenrieth, in Tubinger BUittern, vol. ii. p. 273.— Palletta, Exercitationes Pathologicje, t. i. p. 127 Ehrmann, in Repertoire Gen. d'Anat. &c. Phys. Pathol, t. iv. \i.'lh. — Martini, in Repertorio Medico-Chirurgico di Torino, No. lix. — Otto, in Selt. Beobach. part ii. p. 157. - Billard, Traite des Maladies des Enfans Nouveau-iies, &c. 8vo. Paris, \»•>f^.— Merye, in Archives Gen. de Med. Jul. 1827. — Geoffroy St. Hi- laire, in Ibid. July, 1827 ; et Philosophie Anatomique. Paris, 1822.— WccArt"/, in Pathol. Anatom. vol. i. p. 292. ; et Archiv f. d. Phvsiol. b. vii. p. 99.— EaW<', in Medico- Chirurg. Soc. Trans, vol. vii. p. 427. — Stanly, in Ibid. vol. viii. p. 12 Thompson, in Lond. Med. Repos. Nov. 1824 Workman, in Ibid. vol. iii. No. xviii. — Spalding, in New. Eng. Journ.of Med. and Surgery. Jan. 1M20. xii. LiACERArioN irnemann, Versucheiiber das Ge- hirn und Ruchenmark. Got. 1787 — Burdnch, Vom Baue und Leben des Gehirns, b. iii. p. 501.- Copland Hutchi- son, Practical Observat. on Surgery, Treat. 4 — Brodie. in Med. Chirurg. Trans, vol. xiv. Lond. 1828.— 0«o, Ver- zeichn. No. 2891. xiii. Alterations of Colour. — Sloll, Ratio Medendi, vol. iii. p. 11. — Lallemnnd, Recherche; Anat. Patholog. sur I'Encephale et ses Depend. Paris, 1821-29. — Billard, in Archives Gen. de Med. t. ix. Dec. 182.5, p. 492.— Bright, Medical Reports, vol. ii. part ii. p. 070. BRONCHI, Diseases of the. — Syn. BpoVxos, Gr. Bronchus, Bronchia, Lat. Bronche, Fr. Die Luftrohreniiste, Ger. Bronchi, Ital. Air- passages, Air-tubes, Eng. 1. Bronchi and Aiii-Tuees. — Their Altera- tions. Under this hea'l, the alterations of .struc- ture usually found in the air-tubes, from the la- rynx to the suiallest subdivisions of the bronchi .will be first considered, and subsequently the his- tory of such of them as are more immediately • seated in the bronchi, and are not treated under distinct heads, where some of them are placed, owing to their specific nature, and their relations to other part-:. 2. I. Altedations of Structure in the Bronchi. — As the same lesions are found in the larynx and trachea, as in the bronchi, although certain of tliem are more frequent in one part than in another, no paiticular distinction depend- ing on locality merely will be made, in order that repetitions may be avoided. 3. i. Alterations of the Mucous INIkmbrane OF the Air-passages. — These are the same in kind from the glottis to the air-cells, whether the vascularity, the structure, or the secretions of this memlirane, be individually or collectively changeil. A. Passive or simple, congestion of this surface is not unfrequeiitly found after death; and there is every reason to believe that it may take place during life, or at the moment of death, or even be a post mortem change. When occurring during life, it is most frequently met with in the debilitnteil, and when the return of blood to the left side of the heart has been impeded. Simi)ie congestion of this membrane may be either p:ir- tial or general. When general, and at the same lime suddenly and inteusf'ly formed, it may ter- minate life with all the symptoms of asphyxy. (See Conoesiion of the Bronchi.) In a slighter form it aci'.ompanies various diseases, particularly the febiile exanthemata; but it is seldom found in a chronic form. Congestion of this membrane presents various depths of shade, varying from a dirty pale red, or a brick red, to a brownish or purplish hue ; being sometimes equally deep throughout, in others of a different shade in dif- ferent situations. 4. B. Injiammatory injection, or active conges- tion of the bronchial surface, is generally ptu-fw/, or affects one part of the air-passages more than another. It is also of a livelier colour, and is usually attended with some of the changes here- after to be noticed. Partial or inflammatory redness of the mucous membrane is very much more common than general congestion. It may be limited to the trachea and larynx, whilst the bronchi are pale ; and in this case it may be con- fined to one side of the tube. M. Andral has seen it cease abruptly at the median line, parti- cularly when one lung was affected ; and then the inflamed side of the trachea has corresponded with the diseased lung. The redness may also be confined to the large bronchi, the mucous surface of the passages above and below its seat being pale ; or it may be limited to the smaller bronchi, where it often occasions great dyspnoea and fever, with little or no cough. According to M. Bkoussais, the bronchi of the upper lobes are most frequently congested and inflamed. Congestion and inflammatory injection of the bronchial mucous membrane, alihough very often connected with diseases of the substance of the lungs, are not necessarily dependent on any of them ; for this membrane may be pale from the glottis downwards in cases of acute, and still more in chronic, pneumonia. The same obtains in respect of tubercles, previously to their soften- ing. In many cases, however, where tubercles exist in the lungs, the surfaces of the smaller bronchi are more or less inflamed or congested ; and when the tubercles have advanced to soften- ing, the bronchi nearest them are almost always red. VVh(ire tubercular excavations exist, the redness is still more marked and extensive, some- limes proceeding along the trachea to the larynx : bronchitis thus supervening to tubercular phthi- sis. In these and various other diseases, the inflammatory state of the mucous surface com- mences in the smaller ramifications, and spreads upwards to the glotti.s. But in other maladies, pariiculaily tiiose which first afl^ect the Schnei- derian membrane, throat, fauces, pharynx, &c., ihe injection of the bronchial surface is chiefly an extension of these ; inflammatory action more frequently originating in some one of these situa- tions, and extending itself more or less rapidly, a(;cording to the state of the patient, along the surfiice of the larynx, trachea, and large bronchi successively, until it at last reaches the minute bronchi, or even the air-cells and structure of the lungs. This is the usual diiection in which in- flammation of the mucous membrane of the air- pas.sages commences and extends itself; but most frequently without reaching the smallei bronchial ramifications, and pulmonary parenchyma. 5. C Thickennig of the mucous membrane of the air-passages is a very common le-ion, arising, 1st, from its congested or injected state; and, 2d, from its iiicTcased nutrition or hypertrophy. — a. 'J'he former i-, most frequently observed in the larynx and small bronchi : it is sometimes found in children about the margin of the glottis, giving rise to a form of croup. — /*. True thickening, or hypertrojihy of this membrane, occurs in various BRONCHI AND AIR-PASSAGES — Alterations of the. 245 situations, occasioning very different phenomena accordingly, particularly in those who had been affected with chronic coughs. This form of thick- ening may extend througliout the larynx, or may be limited to the epiglottis, to the entrance of the glottis, to the chordee vocales, or to the ventricles. In the trachea it may occasion no marked sym- ptom ; but in the bronciii, particularly the smaller, il gives rise to sensible alterations of the sound of the pulmonary expansion. It may, when extensive, very materially impede the changes produced by respiration on the blood. Hypertrophy of this mem- brane may also be confined to a circumscribed point, forming thus a tumour rising above the sur- rounding surface. 'I'his form of thickening may assume a nearly cauliflower appearance, from ils exuberance. These excrescences have been found in the larynx by MM. Andral and Ferrus. 6. The mucous follicles may be enlarged inde- pendently of the membrane in which they aie seated. When this is the case, a number of round granular bodies, of either a white, red, or daikbrown colour, are found ou the internal sur- face of the membrane, surrounded by two coloured circles — one round the centre, the other rounut it sometimes assumes other characters ; and then pulmonary catarrh is no more applicable to it than to inflammation of the substance of the lungs, in which, also, it occa- sionally terminates. 32. 1 his form of bronchitis appears to consist of catarrhal irritation extending to, or originating in, the mucous membrane of tiie trachea and large bronchi, to which it is chiefly limited, with- out materially affecting the sub-mucous tissue. It seems not to be actual inflammation, or, if in- flanjmatory action be present, it is of a peculiar or specific kind, probably owing to its being seated in, or rather limited to, the mucous mem- brane; in which li^jht it is viewed by IliLDtN- Brand, who very justly considers catarrhal irri- tation to be distinct from true inflammation. I'his variety may assume an epidemic form, when its symptoms become somewhat modified (see In- fluenza); and repeated or prolonged attacks of it often favour the developement of tubercles in the lungs, or even originate them, in scrofulous and delicate subjects. It may also pass more or less rapidly into either true acute bronchitis, or into the chronic form of the disease, owing to the extension of inflammatorv action more generally through the bronchi, and to their sub-mucous cel- lular tissue. 33. B./frtoe Bronchitis (B. Vera); Sthenic Bronchitis (13. Gravis Sthenica') ; the Actite Miicous Catarrh o/" Laennec. — This more de- cidedly inflammatory form of the disease is some- times preceded by coryza or sore throat ; and as these begin to yield, the morbid action extends along the mucous membrane to the trachea and bronchi. But it frequently also commences in this last situation, particularly in those who are liable to pulmonary disease, and to chronic coughs, and assumes a severe form. After these preliminary signs, sometimes hoarseness, or loss of voice, and always a dry hard cough, with a sense of soreness, rawness, dryness, and heat, are complained of under the sternum, preceded by marked chills or complete rigors. The chills at first alternate with increased heat and dryness of the skin ; and are soon followed by quickened and somewhat laborious respiration ; dyspnoea or op- pression at the chest ; sometimes a dull pain on coughing ; quick, full, and often strong pulse ; sickness or loss of appetite ; pain in the forehead, back, and limbs ; loss of animal strength, with an inability to leave the couch or bed ; foul loaded tongue ; constipated bowels, and scanty high-coloured urine. As the disease advances, the frequency of pulse, the cough, expectoration, and general febrile symptoms, increase, as well as the tightness and soreness of chest : the latter sensation often amounting to an obtuse pain ex- tending between the shoulders to the back, and to the attachments of the diaphragm to the false ribs, sometimes with pale anxious countenance, and great oppression and anxiety. As expecto- ration comes on and increases, the sense of heat below the sternum diminishes. The cough is generally excited by a full inspiration ; and from being short and dry, or attended by but little ex- pectoration, becomes longer, more severe, and convulsive, accompanied with a more copious expectoration ; and subsequently, in some cases, terminates in scanty vomiting, which promotes the discharge of a watery or serous and frothy mucus, sometimes in considerable quantity, which had accumulated in tiie bronchi and trachea. The febrile and other symptoms are aggravated towards night, which is generally sleepless and disturbed, the position of the body being on the back ; but the posture is often changed. ]n some cases, particularly those which are not remarkably severe, each exacer- bation of the fever is attended by chills ; and throughout the disease, the sensibility of the sur- face to cold is very great. In the more phlogistic cases, especially in plethoric subjects, tiie dys- pnoea and ojjpression are very urgent, the face is flushed, and sometimes slightly tumid, and the eyes injected. At a still more advanced period, BRONCHI — Acute Inflammation of the. 251 the tongue is often red at its sides and point, and deeply loaded in the middle and base ; the breath- ing- becomes rattling or wheezing, owing to the air struggling through the mucous accumulation in the bronchi, and the exertions to expectorate greater. In extreme cases of this description, collapse, wltli diminished expectoration, purple lips, orthopnoea, quick depressed pulse, cold perspirations and extremities, with threatening suffocation, occur as early as the sixth or eighth day. 34. The chief characteristic of this true form of bronchitis is the state of the sputum, which ought always to be carefully examined. When the disease attacks a person who never expectorates whilst in health, the cough remains dry for a considerable time ; and those who expectorate habitually, cease to do so when the inflammatory attack is very acute. If the disease be slight, the sputum is often increased from the commence- ment, and its quality changed. As long as the cough continues dry, the disease may be said to be in its first stage. In the course of a period which varies with the constitution of the patient and the treatment employed, each fit of coughing is followed by the excretion of a clear, transparent, serous or watery mucosity, which is at first slightly saline, but afterwards becomes tasteless. It is without odour. As the disease advances, it is a glairy mucus, resembling white of egg. When it is poured into one vessel from another, it flows with extreme viscidity. The more it can be drawn out into a fine thread, and the greater its tenacity, the more marked is the irritation of tiie surface secreting it ; the greater also being the oppression, heat, and anxiety in the chest, the violence of the cough, and the general febrile symptoms. In these very acutej cases, it adheres closely to the sides of the vessel containing it by long striae. When the fits of coughing are severe, there is a /roth or sort of lather on its surface ; and, in some cases, it is streaked with a little red blood, which, however, is not combined with the rnucus as in pneumonia. Early in the disease, whilst the expectoration is fluid, transparent, or watery, it often contains small whitish flocculi, proceeding from the mucous cryptae of the pharynx and fauces. 35. In proportion as the inflammation advances to resohuivn, the sputum loses its transparency, and is mixed with opaque, yellowish, whitish, or greenish matter, which increases until it forms nearly the whole of the expectorated mass, and is attended by a marked diminution of the symptoms : its quantity also is lessened. The inspection of the sputa thus not only serves to indicate the na- ture of the disease, but also its various stages. In cases of a relapse or aggravation of the in- flammatory action, the sputum again becomes transparent, frothy, more abundant, and viscid ; and the other symptoms increase. In several instances the disease will continue to fluctuate for several days, exhibiting symptoms of slight amelioration, soon followed by relapse or exa- cerbations, often occurring on alternate days, or at the tertain period, and assuming from this circumstance a remittent character, until either a more decided improvement takes place, or a more marked aggravation, terminating in some one of the ways hereafter to be detailed (§ 39.). 36. In the two forms of the disease now de- scribed, the minute bronchi so far escape, during the favourable course of the disease, as that no material interruption to the functions of the lungs, in respect of the changes effected on the blood during respiration, takes place in them ; the air still passing through them and reaching the air- cells : but, in certain of their very severe forms and complications, and of their unfavourable ter- minations, and in the variety next to be noticed, obstruction to the free circulation of air, and to the changes produced on the blood, in the lungs, occurs to a greater or less extent. 37. C. Asthenic Bronchitis (B Asthenica) ; Peripneumonia Kotha* of Authors; Acute Suf- focative Catarrh of Laennec. — This varietj' of the disease generally occurs in very youn?, or in aged persons, in those of a phlegmatic or cachectic habit, and of lax fibres and exhausted powers of constitution, or who have been liable to chronic coughs, and to copious expectoration of a thin watery phlegm. Severe paroxysms of cough, with wheezing, and oppressed breathing; foul loaded tongue ; scanty urine ; complete loss of appetite ; very quick, small, or irregular pulse ; little or no increase of heat, excepting at night; cold extre- mities ; vertigo ; pain in the head ; exacerbating fits of dyspnoea, with a scanty expectoration at the commencement, gradually becoming abundant and frothy ; are its chief symptoms in persons ad- vanced in life. It is much less acute or phlo- gistic in its character than the preceding variety ; and its duration is longer. In the more severe cases, the countenance is pallid and anxious ; the oppression of the prascordia extremely great ; and a full breath taken to relieve it brings on a severe fit of coughing, which sometimes terminates in vomiting, and relieves for a time the symptoms by favouring the excretion of the accumulated mu- cosities. The tongue is often dry, and brownish red at its point and edges, and sometimes covered at its base with a dark coating ; the breathing is much more difficult ; the lips and nails assume a blue livid appearance; the face becomes lurid or dusky ; the patient cannot lie down in bed, or, if he does, starts up, after falling asleep, with a sense of suffocation ; and the symptoms indicate either collapse, and obstruction of the air-passages, or effusion of fluid in the thoracic cavities, or even both : stupor or sopor ; weak, wiry, and very fre- quent pulse ; marked diminution of the sputa, cold extremities, orthopnoea, clammy sweats about the face and neck, suppressed urine, &c., ushering in a fatal termination. 38. This is, upon the whole, the most common form of bronchitis which is met with in children, particularly in the metropolis, and among the children of the poor, ill fed, and ill clothed, and those living in cellars, ground floors, and badly ven- tilated lanes and apartments, and is often remark- ably prevalent during the winter and spring. In this class of patients its approach is often insi- dious; and it usually commences with coryza, but not infrequently also with chills, febrile sym- ptoms towards evening, wheezing, quick breathing. * " Peripneumonia notha fortiornobis bronchiorum ca. tarrhus est, quo in pituitosis, obesis, senibus.cachecticis, laxisque hominibus frigida et humida sub tempestate, ab accedente menibranEe mucosae hos canales investieiitis irritatioiie, copiosior, tenaxque pituitaceleriori passu se- crpta bronchiorum fines oppleudo, suffotatiouera Eat cite minatur." (J. P. Frank.) 252 BRONCHI — Acute Inflamm and cough. There is at first little or no dyspnoea ; but the tongue is loaded, the pulse accelerated and full, the face pallid or tumid, and the child has lost its animation. As the disease advances, the breathing becomes more quick and laborious ; and fits of dyspnoea come on, generally followed by severe attacks of cough, which often terminate in vomiting; on which occasion only the bronciiial secretion is presented for examination, and is found to consist at first of a viscid, watery mucus, and afterwards of a yellowish while, or a tena- cious matter. These exacerbations are followed by remissions, during which the child dozes, and appears relieved, and the pulse becomes less fre- quent. Thus the disease may continue, with al- ternate remissions and exacerbations, for many days, until either a permanent diminution of the symptoms takes place, or an increased frequency of pulse, stupor, lividity of the lips and nails of the fingers, convulsions, &c. supervene, and indi- cate impending suffocation, with congestion or watery tfTusion on the brain. 39. Terjiinations. — A. Duration. — The sthenic variety of the disease usually runs its course in about seven or nine days ; but it may terminate either way as early as the fifth ; or it may be prolonged to the 21st, or even the 28th day. lis duration will, however, chiefly depend upon the treatment employed, the complication it may present, the severity of the symptoms, and on the age and constitution of the patient. The asthenic foim of bronchitis generally runs its course in a slower manner; it seldom terminates either way in less than fourteen days, and gene- rally continues for several weeks (§ 37.). 40. B. In favourable cases, the sthenic form of the disease begins to decline from the fifth to the ninth day. Ihe change is first evinced by the state of the sputum, as above described (§ 35.) ; by an amelioration of the cough, dyspnoea, and febrile symptoms : in rare instances, by copious epistaxis ; by a more general and copious perspi- ration than that which frequently terminated the febrile exacerbations ; by a more copious dis- charge of a paler urine, depositing a sediment; and by a diminution of the dyspnoea, of the fre- quency and severity of the cough, and of the quantity of the expectoration, which becomes pearly, opaque, thick, yellowish, or greenish yellow ; at last febrile symptoms occur only to- wards evening, and the disease disappears as in the first variety (§ 31.). 41. C. This favourable change is not, however, always observed, particularly when the attack is very severe, when treatment has either not been soon employed, or has not been sufficient to re- move the disease, or when the secretion into the bronchi has been very profuse, and expectorated with much difficulty. In such cases, it either lapses into the chronic state about to be described ; or, owing to the extension of the inflammation to the air-ceils and substance of the lungs, gives origin to pneumonitis, and even to pneumonitis combined with pleuritis, which is thus superadded to the original disease ; or, from the great extent of surface aflected, the consequent irritative fever, and interruption to the pulmonary functions, and the profuse viscid fluid filling up tiie bronchi, col- lapse of the powers of life supervenes, and the patient dies, either with cerebral affection, or with the usual symptoms of asphyxy, consccjucut ATION OF THE TERMINATIONS. upon diminished discharge of the morbid secre- tion, and its accumulation in the air-tubes. 42. a. When the disease thus terminates in pneumonia, the sputum becomes more rounded, thick, tenacious, and streaked with blood, which is more or less intimately mixed with it, and some- times of a dark colour, giving it a rusty appear- ance; and the cough is more tight, hard, and deep. The oppression also increases ; the cheeks are flushed with circumscribed red ; the pain of the chest is more severe, or is now complained of for tiie first time ; the skin is partially covered with moisture, sometimes very abundant in parts ; the chest, which was hitherto sonorous throughout, is dull, in some part or other upon percussion ; and the auscultatory signs of severe and dangerous pneumonia appear, on which delirium and other unfavourable symptoms often supervene, and ter- minate, with coma, the life of the patient. 43. b. Bronchitis, as it occurs either in the sthenic or asthenic form, may also terminate in chronic pleuritis, and in effusion of serum into the pleural cavity, and in some instances also into the pericardium, particularly in persons advanced in life, and in those who have experienced difficulty in the circulation through the cavities of the heart. In some instances of this description, the expectoration, and many of the other symptoms, are suddenly or quickly diminished ; but the dys- pnoea continues, and signs of effusion become more apparent as those of bronchitis disappear. In these, the consecutive effusion occurs in the form of a translation or metastasis of the morbid action from the mucous to the serous surface. In other cases, symptoms of pneumonitis, or pleuritis, in- tervene between the change in the bronchitic symptoms and the occurrence of effusion, with pain, more or less severe, loss of resonance in some part of the chest, and other auscultatory signs, indicating the extension of the inflammatory action first to the small bronchi, and thence to the substance of the lungs and the pleura. Dr. Hastings has detailed some cases of this termination in his work, and I have treated se- veral instances at the Children's Infiimary ; but it is ciiiefly the aged who are liable to this unfa- vourable occurrence. 44. c. In other unfavourable cases, the disease becomes, in the course of a few days, charac- terised by failure of the energies of life ; oppres- sion and uneasiness increase ; the cough is more frequent, laborious, and convulsive ; the sputum is either more abundant, frothy, tenacious, and glairy, or gelatinous, and excreted with great dif- ficulty, or much diminished in quantity from want of power to excrete it ; the pulse is more rapid, small, weak, and irregular, or intermittent ; the pain of the head more distressing, the countenance is pale, and the face and neck covered with a clammy sweat; the respiration very frequent and wheezing, sometimes with an audible rattle; and, at last, delirium, lividity, at first of the lips, afterwards of the countenance, great prostration of strength, and coma, supervene, and the patient sinks with all the signs of imperfectly changed j blood. In some cases, cerebral symptoms come I oil much earlier, with either violent or low mut- [ lering delirium, which soon terminates in most 1 profound coma. In a few cases, this early acces- ! sion of delirium, or of violent headach, with other \ symptoms of consecutive inflammatory action. BRONCHI — Acute Inflammation of The— .Complications. 253 ending in serous effusion on the brain, altogether removes the original bronchial inflammation, or in otiieis moderates it greatly and masks it. I have observed this in children, and once or twice ia robust adult persons ; but in both classes of subjects it is a dangerous occurrence. Rlore commonly, however, the cerebral symptoms con- tinue increasing, with those referrible to the bron- chi, till life is extinguished. 45. In other cases of very acute bronchitis, with very high fever and severe local symptoms, particularly with quick, laborious, short respira- tion, dyspnoea, anxiety, great sense of heat under the sternum, and bloated countenance, collapse takes place rapidly, particularly if an appropriate treatment have not been early employed ; and either delirium, coma, and other cerebral sym- ptoms, or those more directly depending on the circulation of venous blood, appear, and the patient is speedily cut oflT. In weak and nervous patients, and during unfavourable states of the air, the inflammatory action sometimes seems to invade nearly all the respiratory mucous surface, and is soon productive of a copious mucous secretion, which, either from its difficult excretion or rapid secretion, in some cases, speedily suffocates the patient. 46. In children, and rarely in adults, cases oc- cur, in which the inflammatory action extends upwards, to the trachea and larynx, occasioning all the symptoms of laryngitis in addition to those of bronchitis, and frequently terminating fatally with convulsions and the signs of congestion in the head. In many of the unfavourable cases of bronchitis in ciiildren, the extent of the disease, and the copious secretion, occasion suffocation more or less rapidly, with somnolency, bloated, or livid countenance, convulsions, coma, and, at last, complete asphyxy : and, on dissection, con- gestion of blood, with watery effusion, is found within the cranium ; the bronchi are filled with a muco-purulent matter, and the vessels of the lungs are loaded vvith blood. 47. Complications. — The most common states of complication, in which bronchitis presents it-elf in practice, are, 1st, With catarrhal sore throat, eoryza, &c. of which it is generally consecutive, and with catarrhal inflammation of the pharynx and oesophagus. 2d, With inflammation of the trachea, or larynx, or both, of which it is most frequently consecutive; but also sometimes ante- cedent, as I have occasionally observed in chil- dren. Indeed, we have seldom cruup m London uncomplicated with bronchitis in some one of its forms or states. 3d, With measles, scailatina, or small pox, on which it very freq\iently supervenes ; particularly in measles, sometimes very early in the di-ease, and before the eruption breaks out ; but oftener in consequence of its premature dis- appearance, or retrocession. 4th, Very com- monly with hooping-cough, especially during certain seasons and epidemics. 5th, Not infre- quently with continued fevers, particularly in its asthenic form. 6th, Often with disorders, or even sub-acute inflammation, of the digestive mucous surface, and diarrhoea, in children, when it also assumes this form ; the stools bying oflensive, and the tongue red at its point, &c.* 7th, With dis * During some seasons I have occasionally admitted in one day, at the Intinnary for Ciiildren, several cases, in which it was difficult to determine whetlier the digestive ease of the liver, and accumulations of bile in the gall-bladder, chiefly in adults; the tongue then being very deeply loaded with a yellowi?h browa crust, or fur; and the stools dark coloured, and most offensive. 8th, In some cases with erysi- pelas, particularly its epidemic and infectious form. 9th, \\'ith pneumonia, or pleuritis ; these beingeilher consecutive of the bronchitis, or simul- taneous with it. lOth, With dropsical effusion into the pleura or pericardium, especially in aged persons; and, llih. With inflammatory irritation, in the substance of the brain, or in its membranes, with disposition to effusion, — a complication most commonly met with in children. 48. All these diseases are greatly aggravated, and their danger increased, from being associated with bronchitis ; and they frequently terminate fatally by one or other of the unfavourable states which the bronchial affection assumes. Bronchitis thus complicated, also presents, in consequence, either a more acute character, or the asthenic form ; and, being attended by a more marked disposition to invade the smaller ramifications and air-cells, or by a more profuse secretion of mucus, and a rapid depression of the powers of life, the unfavourable terminations above described quickly supervene. In several of these complications, particularly with pertussis, measles, scarlatina, continued fever, cerebral affections, and diseases of the lungs or pleura, bronchitis often escapes detection, until it becomes either one of the most important, or the most dangerous, or an actually fatal lesion. When thus complicated with measles or other exanthematous diseases, the eruption, if it still continue on the surface, often assumes, as the powers of life sink, adaik or purplish hue; and a slight dirty blueness of the skin, particularly of the face, hands, &c. is generally observed in other cases, inilicating the impeded functions of respiration, and the consequent changes in the blood. The frequency and importance of the complication of bronchitis with'measles, especially before the appearance of the eruption, during its progress, and after its decline ; and the occur- rence of the former complaint, both during and after convalescence from the latter ; are deserv- ing of the careful attention of the practitioner. 49. ii. Sub-acute BnoNcniTis is characterised by the symptoms of the sthenic form of the dis- ease in a milder and more chronic form. The cough continues longer dry, and the expectora- tion scanty, or thick, visciil, gelatinous, or albu- minous, with tightness of chest, and oppressed breathing. In this form of the disease, a plastic albuminous exudation sometimes forms in the large bronchi, and lower part of the trachea, or in the large bronchi of only one lung, and is moulded in the form of the air tubes ; and is either expectorated in fragments, or in large tubular branches and ramifications. Cases of this de- scription are detailed under the appellation of bronchial polypi by the older writers, and figures given of them by Tui.pius and others. Mr. Iliff has published {Lond. Med. Repos. vol. xviii. p. 207.) a case of this description, wherein this production retained its ramified and tubular form. I have met with two cases where the albuminous exudation had been formed in the bronchi, and or the respiratory mucous surface wasmost affected. This complication is not infrrquent dining convalescence fn-ra the exanthemata, particularly measles and scarlet fever. 254 BRONCHI AND AIR-PASSAGES — Alterations of the. expectorated in fragments. It generally occurs in an uncomplicated state. 50. iii. Chronic Bronchitis often follows se- vere attacks of catarrh ; and is also frequently consecutive of acute bronchitis ; but it sometimes occurs primarily in the ciironic state, particularly in aged persons. It differs in nothing from the acute or sub-acute forms, excepting in as far as the symptoms are altogether milder, and their continuance longer ; there being no distinct line of demarcation between its grades of activity and chronicity. The chief means, by which we are enabled to infer, that the disease has assumed a chronic form, when it is consequent on the acute, is the continuance of the sputum for several days, in undiminished quantity, and the persistance of the opaque, whitish yellow, or yellovvish green appearance, which it assumed upon passing from the transparent, fluid, and viscid condition charac- terising the acute form. 51. Chronic bronchitis assumes various grades of severity, and presents different phenomena, according to the changes which have taken place in the bronchi. In its slighter states, and primary form, as it is often met with in persons advanced in life, and as it prevails during winter and spring, or variable seasons, it consists chiefly of a frequent and almost habitual cough, with scarcely any pain in the chest, continuing for weeks, or even months, or recurring every autumn, winter, and spring ; being most severe in the mornings, and much easier through the day, with slight dyspnoea on exertion, and copious viscid mucous expectoration; but without any marked febrile symptoms, excepting slight acceleration of pulse. Its severer forms are met with in young or middle aged persons, after catarrh or acute bronchitis ; and are attended with fits of coughing, and copious expectoration ; with oppression at the chest and praecordia ; with febrile symptoms, particularly towards night ; with copious perspirations in the morning, which often seem to increase the cough instead of relieving it ; with loss of strength, ema- ciation, and slight disorder of the digestive organs. The cough is increased after getting into bed, and very early in the morning. The breathing is quick and laborious, particularly on any exertion ; and the patient complains of slight tightness of the chest. The pulse generally ranges from 90 to 120 ; being the former whilst quiet in bed, and the latter towards evening. 52. Attention to the expectoration is very im- portant, in order to enable us to judge both of the accession of tiiis state of the disease, or of its ag- gravation or change into the acute form, which is not infretiuent, and of tlie concurrent or con- secutive alterations which often take place. The sputum occasionally continues long in the state now described. It is geneiully then inodorous, and without taste. 15ut it oftener becomes green- ish, or yellowish while, or muco-purulcnt ; is mixed with a colourless watery phlegm, and is more or less abundant. In cases of a worse cha- racter, particularly when hectic symptoms are present, it assumes a more purulent appearance ; is sometimes streaked with blood, or mixed wilii daik specks of blood, or consists chiefly of pus. These changes, however, sehlom occur without much antecedent fever, and attendant emaciation, niglit sweats, occasional dinrrha',a, and the symptoms of confirmed hectic. In rarer cases, the sputum becomes remarkably foetid ; but this change can- not be imputed to any particular lesion of the bronchi or lungs, excepting sometimes to con- siderable dilatation of the former. The whole of the symptoms in this class of cases so very nearly resemble tubercular consumption, as to be distin- guished from it with much difficulty, and only by attending to the appearances of the sputum, and by examining the chest with the stethoscope. 53. The sputum generally partially swims on the surface of water. When it is thin, trans- parent, viscid, and frothy, it usually altogether swims ; but when it is thick, in tenacious, opaque lumps, or in fragments resembling portions of albuminous exudation, it generally sinks. In all these states it cannot be diffused in the water. When it consists of yellowish white, or greenish yellow matter, it partly sinks, and by agitation is broken into ragged portions, and is partially dif- fused ; and the more it approaches a purulent state, the more completely and readily is it dif- fused, imparting to the water, by agitation, a yel- lowish white appearance. 54. Chronic bronchitis is also sometimes conse- cutive of the eruptive diseases ; but tliese diseases have generally altogether or very nearly subsided before the bronchial affection supervened. It occurs primarily from the irritation of minute par- ticles of mineral or vegetable substances floating in the air, as is shown in the article on Arts. It is sometimes also complicated with other chronic diseases of the lungs and pleura, more especially with tubercles ; with diseases of the liver ; with chronic inflammation, or other disorders of the mucous surface of the digestive tube, particularly of the oesophagus, stomach, and large bowels. In all these consecutive and complicated states, it presents no certain or unvarying forms ; its chief character, its duration, progress, and ter- mination, being modified by its severity, by the constitutional powers of the patient, by his dia- thesis, and by the quantity of expectoration. In some cases, the secretion from the bronchial sur- face is so profuse as to be the chief cause of the exhaustion and death of the patient. 55. iv. Anatomical Characters or Bronchi- tis.— A. When the body of a patient is opened, that has sunk under any disease whilst affected at the'same time with a inild and recent bronchitis, some redness is found, generally in a circum- scribed portion of tlie mucous membrane, and usually towards the end of the trachea, and in the first divisions of the bronchi. If tiie inflamma- tion have been more intense, the redness extends to a greater number of these tubes, and exists, moreover, in the smaller ramifications. It some- times happens that this redness is exactly limited to the bronchi of one lobe only ; and it is the bronchi of the sujicrior lobe which seems to be more particularly disponed to inflammation. The red colour of the bronciii presents itself occasion- ally under the form of a fine injection, which seems to exist both in the sub-mucous cellular tissue, and in the mucous membrane itself, and is usually attended by slight tumefaction. Some- times the vessels cannot be distinguished, but only a number of small, crowded, red points, which are agglomerated the one around the other. Finally, an uniform red colour is occasionally ob- served. In some cases, the redness diminishes progressively from the large bronchi to the BRONCHI— Inflammation of the — Diagnosis. 255 small ones ; in others, an opposite disposition is remarked. Occasionally the redness only exists in intervals, in the form of bands or of isolated spots, forming, as it were, as many circumscribed phlegmasia;, between which the mucous coat is white and healthy. 56. B. When the inflammation is chronic, the mucous membrane generally loses its lively red- ness : it presents a livid, violet-colouved, or brown- ish tint. Finally, and what is very remarkable, in individuals offering all the symptoms of inve- terate chronic bronchitis, with puriform expec- toration, the mucous membrane of the lungs has been found scarcely rose-coloured, and even per- fectly pale through its whole extent. Bayle and Andral liave particularly noticed this fact. I would not wish to conclude that there is not, and least of all, that there has not been, inflammation in these cases; but I tiiink a very copious secre- tion will often take place from mucous surfaces, and assume even a purulent appearance during its retention in the bronchi, from lost tone of the extreme capillary vessels, with, perhaps, an in- creased flux or determination of the circulating fluid in order to supply the discharge, all vascu- larity disappearing with the cessation of circula- tion. The other changes observed on post mor- tem inspection, particularly in the more chronic states of bronchitis, consist chiefly of thickening, softening, ulceration, &c. of the mucous mem- brane, dilalation of the bronchi, &c. (See § 7, et seq.) 57. V. Diagnosis.— The characters of the coug/i, and of the sputa, and the physical signs, are our chief guides in the diagnosis of bronchitis. The history I have given of the disease will be gene- rally sufficient to enable even the inexperienced to recognise it : but it will often be necessary to arrive at more precise and certain information as to the extent of lesion, and its existence either in a simple or in a complicated form. 58. A. Of the acute. — a. By auscultation. — In the first stage of the disease, the inflammation causes tumefaction of the mucous bronchial sur- face, and consequent diminution of the calibre of the tubes. This state occasions a modification of the respiratory sound in them : and, hence, either with the unaided ear, or with the stethoscope, we hear at first the " dry bronchial rhonchus ; " con- sisting chiefly of a sibilous or whistling sound ; occasionally with a deeper tone, resembling the note of a violoncello, or the cooing of a pigeon, particularly when the large bronchi are aflPected. These sounds (see Auscultation, § 14.), deno- minated the sibilous and sonorous rhotichi, are pre- sent chiefly in the early stage, and before expec- toration takes place ; and proves the accuracy of the rational inference of Dr. Ba dh am, that the diflncult breathing of this period is owing to the slate of the mucous membrane ; and I would add, of its sub-mucous cellular tissue also. To these sounds is added the mucous rhonchus ; and in propor- tion as the bronchial secretion, to which it is owing, a)igments, this sound becomes predomi- nant. When the inflammation is seated in the large tubes, the bubbles of mucous rhonchus are large and uneven ; and the respiration may be stilT heard over the chest. But when the mucous rhonchus is fine, and is heard constantly, it may be inferred that the small bronchi are invaded. When this is the case in a severe degree, there is also slightly diminished resonance of the chiefly affected part upon percussion. As the disease proceeds, and the secretion passes into an opaque and thickened state, the mucous rhonchus becomes interrupted, sometimes with obstruction of the respiratory sound in a portion of the lungs, and passes into a sibilant or clicking sound. These changes arise from the entire or partial obstruc- tion of one or more tubes by the thickened mucus, and are generally of temporary continuance : occurring now in one part of the chest, and dis- appearing ; and now in another. This state of the bronchi fully explains the dyspnoea of this stage. 59. b. Rational diagnosis. — a. The cough in bronchitis is loose, diflfused, and deep ; in pa- roxysms, and attended with fever, often with wheezing. In pertussis, it is in severe paroxysms, unattended by fever or wheezing ; is accompanied with a distinct whoop ; and terminates in vomiting. In croup it is sonorous, clanging, and harsh. In laryngitis, it is suftocating, shrill, or grunting ; and, on inspiration, attended with a drawing down of the pomum Adami to the sternum, and retrac- tion of the epigastrium and hypochondria. In pneumonia, it is deep in the chest; frequent and short, often hard ; and gives a metallic sort of noise. And, in pleuritis, it is short, dry, hard ; sometimes slight, but always suppressed and pain- ful. — 0. The expectoration in bronchitis is abundant after the second or third day, or even from the first: in pertussis, it only follows the vomiting: in pneumonia, it is more rounded, distinct, thick- ened, purulent, rusty, and intimately streaked with blood : in pleuritis, croup, and laryngitis, it is scanty, thin, frothy in the latter; sometimes with shreds or pieces of lymph, and entirely dif- ferent in appearance from that of bronchitis. — y. Pain in bronchitis is scarcely complained of ; and consists merely of a sense of soreness, heat, and tightness in the chest, particularly beneath the sternum, and is not increased on full inspir- ation : in pneumonia, it is more marked, especially in certain parts of the chest, generally nearer the lateral regions, and is increased on inspiration or prolonged expiration : in pleuritis, it is very acute, and a full inspiration is impossible : in croup and laryngitis, the pain is increased upon pressing the trachea and larynx. — 5. The conn' tenance in bronchitis is more frequently pallid or bloated; in p/zeumonin, it is generally flushed ; and dyspnoea is greater in the former than in the latter. The breathing is wheezing and hurried in acute bronchitis; in pneumonia it is less so, and gene- rally without the bronchial wheeze. The pulse, in the former, is frequent, full, free, developed, and soft; in the latter, full, hard, bounding or vibrating, and sometimes oppressed and undeve- loped. The general febrile symptoms are more continued in pneumonia than in bronchitis; morn- ing remissions, with free perspiration, being more frequent in the latter than in the fornjer. The physical signs in pneumonia, pleuritis, &c., are the surest means of their diagnosis. (See art. Lungs — Injiammalion of.) 60. Some cases of asthenic bronchitis may be mistaken for humoral asthma; and occasionally no very distinct line of demarcation can be drawn, both aflfections either insensibly passing into each other, or being complicated with one another. But, generally, the slow accession of the former. 256 BRONCHI — Inflammation of the- Procnosis. the more continued and less urgent dyspnoea and tightness of the chest, and the presence of febrile symptoms, particularly great quickness of pulse, will distinguish it from humoral asthma ; which is commonly characterised by the sudden accession of tiie paroxysms, their severity during the night, and the attendant orthopncea, the more or less complete and prolonged intermissions, and espe- cially by the absence of fever, and by the much more marked integrity of the vital and animal powers than in asthenic bronchitis. In tliis latter disease, the patient is incapable of leaving his bed or his apartment : in asthma, he may attend to his avocations ; or may, at least, chunge his room in the intervals between the fits. 1'he diagnosis between the sthenic bronchitis and asthma is attended with no difficulty. (See Asthma, $ 50.) 61. B. Of the chronic. — a. By auscultation. —The physical signs of this form of bronchitis are not materially different from the acute. The re- spiration is extremely varied : being sometimes louder, at other times more obscure than natural, and generally accompanied with the mucous rhonchus ; which, however, is not heard over the chest, but now chiefly in one part and then in another, and seldom during the whole of the respiratory act. The occasional occurrence of the sibilous and sonorous rhonchi indicates that the tubes are sometimes partially obstructed ; but this is much less frequent than at the commence- ment of acute bronchitis ; and it rarely happens that the respiration is entirely interrupted in a part of the lung. Very often, also, when the dyspnoea is considerable, or even urgent, the air is heard to enter the lungs as well as usual, the respiratory sound being either distinct or puerile. The re- sonance of the chest on percussion is scarcely di- minished. When the bronchitis is very chronic, the tubes sometimes become dilated, from being weakened by the inflammation and stained by the paroxysms of coughing. When this state of the bronchi exists, the sputum is often foetid, and several of the auscultatory signs of tuberculous excavations of ihe substance of the lungs are present. If the dilatations be large and rounded, it may furnish pectoriloquy and the cavernous rhonchus ; but if, as is more generally the case, it extend to several tubes, or if they be dilated along a considerable portion of their axis, a loud hron- cltpphonij is only heard. If this dilatation be exten- sive, bronchophony, bronchi;d respiration, some- times with a "veiled lAowing," and even slight pectoriloquy, will be heard in corresponding parts of the thorax. On percussion, the sound is often somewhat less than natural, owing to the com- pression of the surrounding pulmonary tissue ; and owing, also, to this cause, the dyspnoea is often great. Dilated bronchi remain long sta- tionary ; tuberculous excavations generally in- crease rapidly. The former are most fretiuently situated in the sca|)ular, mammary, and lateral regions ; the hitter in the sub-clavian and sub- acromian regions of the client. (See the diagnosis o/"I'uBEItCl'I.AH CONSUMl'TION.) 62. h. Rational diagnosis. — it is chiefly wilh tubercles in tlie lungs that chronic bronchitis is liable to be confounded ; and, indeed, without the aid of auscultation, the diagnosis between them is very difficult. When they both co-exist, and especially when the latter is attended with dilat- ation, we have seen that even auscultation does not easily enable us to ascertain the exact state of disease : however, by a careful comparison of the physical and rational symptoms of both, we may generally form a tolerably correct opinion. Early in chronic bronchitis, the absence of pain during inspiration, the capability of resting on either side, the pallidity of the lips and countenance, the appearance of the sputum (^§ 34, 35.), and the wheezing noise on respiration, may readily distin- guish it from tubercular phthisis. As the disease advances, the symptoms more nearly resemble tubercular consumption; but the pallor of coun- tenance and absence of pain generally continue ; or, if tiie latter be present, it is diffused over the chest, and the patient can draw a larger volume of air into the chest, and retain it longer, than in phthisis. The dyspnoea is less on exertion, consists more of a stuffing sensation, and is more relieved by expectoration ; the sputum generally consists of a more considerable portion of mucus, and is more regularly abundant; and the perspirations are much more partial, the emaciation less, and the paroxysms of hectic much less regular, than in tubercular disease. The cough is very different. In chronic bronchitis, it is generally deep and sonorous, and in paroxysms ; in phthisis, it is short and tickling. When we find copious purulent expectoration, but without broken-down portions of softened tubercles or of the pulmonary tissue ; night sweats ; hectic fever, with full deep cough, and absence of the physical signs of phthisis ; — if, after repeated examinations, there can be de- tected neither a constant absence of the respiratory murmur, nor gurgling cavernous rhonchus, nor pectoriloquy, nor marked defect of resonance on percussion, — we may safely conclude the disease to be chronic bronchitis. When this disease de- pends upon the inhalation of irritating substances, as Dr. Hastings very justly remarks, the cough and copious muco- purulent expectoration often continues for months, or even years, without much suffering, with pale countenance, slight lividity of the lips, &c. In these cases there can be no difficulty in the diagnosis. 63. vi. Prognosis. — A. In the acute. — When the disease is slight, or limited to a few bronchi only, the disease generally terminates favourably'. The change is indicated by a more perfect apy- rexia in the mornings, less severe and less fre- quent cough, easier expectoration, and a thicker and more opaque sputum ; which, however, gene- rally assumes a more fluid and glairy appearance for a few evenings during the febrile exacerbations. A relapse of the disease is indicated by increase of the fever and cough, and a more transparent, fluid, and glairy expectoration. When the in- flammation is very severe and general, as indi- cated by high fever, dyspnoea, &c., the prognosis should be unfavourable, or given with caution. If symptoms of collapse have appeared, and the mucous rhonchus be heard universally, and with little or no respiratory murmur upon auscultation ; if the pulse becomes very I'requent, small or weak, irregular or intermittent ; and if the countenance be at the same time pallid and anxious, slightly livid, or the nnils of tlie fingers and lips tending to purple ; the daniier from asphyxia is extreme. When the disease occurs in the course of con- tinued or exanthematous fevers, in some epidemic states of liooping-cough, and in tlie other severe BRONCHI — Acute iMr.AMMAiiox of tiii: — Tueatment. 257 forms of complication (§§ 47, 48.") ; and when the signs indicating the unfavourable termiwitiims already enumerated appear, the danger is also great, although it may not be extreme. The supervention of pneumonia or pleuritis, or of tracheitis or laryngitis ; a sudden diminution of the expectoration; tiie occurrence of cirebral sjnip- tunis, of orthopnoea, or even continued dyspnoea, with expansion of the nostrils ; a dark red colour of the tongue ; are all unfavouiable circumstances, and indicate imminent danger. On the other hand, when spontaneous evacuations occur, with a favourable change in the cough and expecto- ration, particularly on one of the critical days, although the attack has been extremely severe, a favourable result may be looked for, more par- ticularly if the disease proceeded from cold, and was uncomplicated. 64. The asthenic form of the disease is veiy dangerous, when occurring at the extremes of age ; but less so when it is unattended by marktd depression of the powers of life, and by signs of the circulation of venous blood, — circumstances wliich, in connection with the frequency, weak- ness, and irregularity of the pulse, the quantity and appearance of the sputa, and with the diffi- culty of expectoration, constitute the danger, 65. B, In the sub-acute a7td chrcnic. — If it have arisen from catarrhal affection, and be un- attended by much einaciation or hectic, this form of the disease will generally terminate favour- ably, although the expectoration present a puri- form appearance. The more purulent, how- ever, this excretion, and the more marked the symptoms of hectic, the greater the danger. But when the sputum seems to consist chiefly of mucus, although the quantity expectorated he great, a favourable issue may take place ; and this will be more frequently the case when the chronic bronchitis has been consecutive of the acute. When there are constant dyspnoea, very frequent pulse, profuse sweats, and copious purulent expectoration, with emaciation, hectic fever, colliquative diarrhoea, associated symptoms of disease of the liver, or of the mucous surface of the bowels, with a smooth, glossy, or chopped, a dark red, or raw appearance of the tonoue, a most unfavourable piogiiosis should be given ; and if to these succeed aphthous eruptions about the mouth and tongi;e or fauces, little hope of recovery can be entertained. Tiie causes and complications of the disease should also mate- rially influence our prognosis. When it has ari-en from mechanical irritation of the bronchi, patients often recover from a very unfavourable state, when the irritating cause has altogether been removed. The occurrence of bronchitis in the scrofulous diathesis, and its association with tubercles in the lungs, are dangerous cir- cumstances. This complication is to be ascertained chiefly by means of the physical signs. If these indicate the existence of tubercles, or do not establish with certainty their absence, a very cau- tious opinion should be given. The mucous rhon- chus, and dulness on percussion, with the rational symptoms of tubercles, are indications of a very dangerous malady. The rapid development of symptoms of theacute, in the course of chronic bron- chitis, must be viewed as an unfavourable circum- stance. The extremes of age also increase the risk in this as well as in the acute state of the disease. Vol. I. 66. vi. Causes. — A. The predisposing causes are — whatever lowers the energies of the frame, more particularly too warm or crowded apartments ; sleeping with too many clothes ; late rising, late hours, and too great sexual indulgence; veryearly, and far advanced age ; the lymphatic and sangui- neous temperaments; relaxed habits of body ; fe- brile and exjinthematous diseases, and the suppres- sion of accustomed eruptions and discharges. 67. B. The exciting causes arc, exposure to a cold and moist atmosphere, or to currents of air, particularly when perspiring; rapid vicissitudes of weather and season ; wearing (lamp clothes or shoes; or sleeping in riamp beds or linen; con- tinueil exposure to dry cold ; quick refrigeration of the body after being over heated and fatigued, or upon coming from crowded apartments and assemblies ; vveai ing too low or very thin dress, with exposure of the neck and chest; rapid at- mospherical changes, parliculaily during autumn, winter, and spritig, and especially from cold to heat ; epidemic constitutions of the aimospliere ; easterly and north-east winds; exposure to the night air after rain ; the inhalation of iiritating gases, vapours, or niineral or vegetable particles (see Ams and Hmvloym^vts, as Causes if Dis- ease, § 40.) ; sudden passage from- the cold air into overheated apartments ; catarrhal infection ; mias- mal exhalations in cold and moist states of the an- ; the imperfect irruption or retrocession o( the exan- thematous diseases ; and the translation or meta- stasis of gout, rheumatism, erysipelas, &c. 68. viii. Treatment. — 1st, Of Acute Bron- chitis.— A. In its simple states. — M. Broussais gives a very concise view of the indications of cuie in this form of the disease, which has been adopted, verbatim, by Dr. Hastings; without, however, referring to the original writer. M. Broussa.s very justly recommends that the excitement of the sanguiferous system should be moderated, by general blood-letting, acidulated and mucilagin- ous fluids, and abstinence fiorii stimulating food ; that perspiration be favoured, by saline and an- timonial medicines, and by emollients, both in- ternally and externally employed; and that the irritation and congestion of the diseased vessels be relieved by local depletions and emollient re- vulsants when erethysm of the capillaries pre- doininates, and by rubefacients and vesicatories when the nervous powers aie depressed. 69. a. In the first variety of the disease, blord- letting is seldom requisite ; saline and antimonial medicines, with demulcents, emollients, &:c. "being generally sufficient. When, however, fever is considerable, and the patient complains of sore- ness or slight pain in the chest, a moderate bleed- ing— preferably by cupping — will be serviceable ; and the solution of the potasslo-tartrate of anti- mony, in frequently repeated doses, will soon remove all febrile disturbance. The following mixture has generally answered this purpose in my practice. (See also F. 393. 854.) No. C6. I^ Mist. Campliorae, Mist. Am)'g(1;il. Dulc. aa 5iij ; I^iq. Ammoniae Acet.5 jss. ; Spirit. xEtlier. Nit., Villi Antiraoii. Potass. -Tart., aa 3ijss. ; Syrupi Tolutani 5 jss. M. Capiat coch. ij. larga, secunda quaque hora. 70. In the tliird variety, or the asthenic form of the malady, blood-letting is generally required; but it ought to be resorted to with much caution, and early in the disease, as recommended by Sy- I DFNHAM and most practical writers of the present S 258 BRONCHI — Acute Inflammation of the — Treatment. day. From eight to ten ounces may be taken from a vein, but, I think, preferably from between the shoulders by cupping ; and afterwards, re- vulsants, counter-irritants, and expectoranis, may be employed. The admissibility of depletion, or of antimonials, or the extent to which they should be carried, and the propriety of having recourse to stimulating expectorants, necessarily depend, in this form of the disease, upon the degree of mor- bid action and of vital power presented by indi- vidual cases, and upon the quantity of the expec- toration and the difficulty to excrete it. INIoderate local depletions are more generally required when this state of disease occurs in children, than when it is met with in aged persons ; whilst the latter are more benefited by expectorants, diaphoretics, counter-irritants, and diuretics, than the former class of subjects. 71. In the second variety of bronchitis, parti- cularly when the patient is young,- plethoric, or robust, blood-letting should be early employed, and be directed as recommended in the art. on the Blood (§ 64.) ; and a full impression made upon the circulation, short, however, of syncope. Im- mediately afterwards, the preparations of anti- mony, combined according to circumstances, should be given in frequently repealed doses, so as to prevent the return of excessive local or general action, and to promote a free and uni- versal perspiration. The preparations of antimony that may be selected for this purpose are the ant. potass.-tart., James's powder, or the kermes mi- neral (F. 637.) : and the first doses of them may be advantageously combined with calomel. The following may be exhibited ; or F. 24. 513. 530. 638., or other similar formulae, contained in the Appendix : — No. 67. B Hydrarg. Chloridi gr. vj. ; Pulv. Antimonii Comp.gr. v.; CamphorEe rasse gr. j.; Extr. Hyoscyami gr. V. ; Conservse Rosar. q. s. ut fiat Bolus statim post Tensesectionem sumendus. No. 68. R Mist. Camphors! 3j- ; Liq- Ammon. Acet. 3ij. ; Fotassae Nitratis gr. vj.— x.; Spirit. Mther. Nit. Til XX. ; Villi Antimon. Potass. -Tart, (vel Vini Ipecacu- anhae) HI XK.— XXX. ; Tinct. Hyoscyami ttlxv.; .Syrupi Tolutani 3 j. M. Fiat Haustus, tertiis horis capiendus. When antimonials are given in sufficient doses, and frequently repeated after the first depletion, a second will not often be necessary ; or local blood-letting will be sufficient. But if the febrile excitement and the state of the pulse and of the blood drawn indicate it, venajsection may, in robust subjects, be again repeated to the extent already indicated. "When this variety of the disease affects children, blood-letting, either gene- ral or local, according to the age, should be pre- scribed, with saline diaphoretics, followed by the semicupium or pediluvia. In all classes of sub- jects, hlond-leUiiig must be regulated according to the state of the pulse, heat of .skin, the character and quantity of the expectoration, the presence of pain, and the prevailing character of distases; attention to these circumstances being especially required in children and aged persons. .72. h. The choice of diapJwretics in this disease is deserving of notice. Early in the first and secmid varieties I have usually preferred the potassio-tar- trate of antimony, generally in solution, anil con- joined with the vin. ipecacuanha', or with the spirit, aither. nit., small doses of camphor, &c. J5ut in infants or very young children, in the aged, and in the tliird or asthenic form of the disease, ipe- cacuanha seems preferable, — in the latter class of subjects particularly, combined with camphor. In the more catarrhal, or less acute, forms of the complaint, ipecacuanha, combined with nitrate of potash and opium, and, in the more sthenic states of the disease, the same medicines, in larger doses, will often prove equally serviceable as the preceding. While febrile excitement continues much increased, diaphoretics or diuretics are often exhibited with little advantage, as the restoration of the cutaneous and urinary secretions is rather the consequence, than the cause, of diminished or exhausted febrile commotion. The object, there- fore, should be, first to lessen the excitement by depletion, alvine evacuations, and sedatives ; and then to. employ those diaphoretics which produce a lowering and refrigerant effect, until the strength of pulse and heat of skin are reduced. Hence the propriety of adopting the medicines already re- commended, and combining them with the nitrate of potash, and with each other. 73. c. Emetics are amongst the most beneficial remedies we can resort to in certain states of bronchitis, particularly in the t/iwd variety ; and, in the second, after blood-letting : in children they are often remarkably useful. They have the effect of unloading the bronchi of the mucus accumu- lated in them, of relaxing the surface, and after- wards of promoting perspiration. For children, ipecacuanha should be preferred ; and for aged persons, and the third variety of the disease, the sulphate of zinc. In the second form, and in all other subjects, the potassio-tartrate of antimony is the best emetic that can be prescribed, as it ope- rates by vomiting, by lowering the vascular action, and promoting perspiration. Emetics are more particularly required when the expectoration is difficult or suppressed, the cough severe and suf- focating, and when the disorder depends upon the inhalation of irritating particles. They moreover tend to promote the operation of purgatives, which are generally much required in this disease. In cases of extreme depression, with suppressed ex- cretion of the secretion, the stimulating emetics in the Appendix ( F. 402, 403.) should be selected. 74. d. Purgatives and cathartics have been considered by several writers as of doubtful efficacy in pulmonary inflammations ; and, when expectoration is established, as being even pre* judicial. Such appears also to be partly the opinion of an able reviewer in the Medico- Chirnrgical Review for Dec. 1820. But it is not quite in accordance with my experience, which, at the Infirmary for Children alone, must have amounted to some thousand cases of the different forms of the disease. It should be kept in recollection, that the expectoration in bronchitis is not a salutary discharge from the lungs, the promotion of which is a beneficial indication of cure ; but that it is the product of a morbid state, of the nature of which it is an index ; and that this state is generally inflammatory, and always attended with determination of the circulating fluids, thereby keeping up the discharge. It is obvious, that whatever tends to increase the morbid determin- ation to the bronchial surface will increase the disease, and, consequently, the expectoration ; and that whatever derives from this situation will pro- portionately diminish both. That purgatives or cathartics, judiciously combined, have the effect of deriving from the lungs, by increasing the se- BRONCHI— AcvTE Infi.am cretions of the liver [and digestive mucous surface, must be evident; and I have accordingly founil them serviceable when thus prescribed. Severe attacks of bronchitis, moreover, are favoured by congestions and accumulations of bile in the biliary organs, and by sordes retained on the mucous surlace of the bowels. In all those cuses more especially — wherein the stools are generally very offensive — and at the commencement of all the forms of the disease, these medicines ought to be exhibited, with the view not only of promoting the abdominal secretions, and of removing fascal matters and sordes, but also of deriving the circu- lation from the seat of disease ; and the bowels should be kept very freely open throughout the treatment. It is, of course, understood that we are not to prescribe cartharlics to the extent of depressing the energies of the frame too low, es- pecially when they are already weak. Indeed, purgatives may be as much required, and as bene- ficially employed, in asthenic cases, as in others of a more phlogistic description, particularly if the bowels have been neglected ; effects of a very different nature from that of mere evacuation arising from a judicious choice and combination of them. Thus, when prescribed with bitteis, tonics, stimulants, or antispasmodics (F. 266. 471. 572. 880, 881. 887.), in the asthenic or suffo- cative states of the disease, not only will full alvine evacuations be procured, but also a tonic effect on the digestive organs ; and, consecutively, a more moderate secretion in the bronchi, with an easier expectoration, will be produced. I have observed that the combination of purgatives, espe- cially calomel, or those of the resinous class, with camphor, antimony, and hyoscyamus, according to the circumstances of the case, is particularly serviceable in bronchial diseases. 75. e. Expectorants have been much abused in inflammations of the bronchi ; chiefly from tiie circumstance of the expectoration being too gene- rally viewed as a salutary d'scharge which ought to be promoted, instead of its being a product of the inflammatory state, or of active determination to the surface of the air-vessels. I consider them quite inadmissible when there is much fever, or heat of skin, or when the sputum is abundant and fluid, the patient having sufficient strength to bring it up ; and generally in the second variety of the disease. On the other hand, in the third variety, or when the expectoration is arrested evidently from want of power to throw it off, or to excrtte it, or from its great viscidity, expectorants will be of much service. In such cases, ammonia and camphor should be first tried, as being generally least detrimental in doubtful cases, and most quickly beneficial. Where the admissibility of expectorants is evident, especially in the asthenic form of the disease, and in aged persons, squills, am- moniacam, galbanum, or senega, may be directed ; with the precautions, and in the forms, recom- mended when treating of them vi'ith reference to humoral asthma (see Asthma, §§ 89. 103.; and R No. 41 — 46.). When expectoration is rendered difficult, and the cough suffocative, fiom the tenacity and consistence of the sputum, as is sometimes the case, attenuants and alteratives, as the fixed alkalies combined with ipecacuanha, &c., or as prescribed in the article on Asthma (§ 103. I^ No. 50, 51.), and exhibited with camphor or ammonia, will be found of much service. In MATION OF THE — TllEATMENT. 259 nearly all stales of bronchitis, camjyhor is a most valuable mfdicine. Its virtues have been singu- larly overlooked by the writers on this disea.-e ; but, when combined wiih colchicum, or with anti- mony, nitrate of potash, ipecacuanha, &c,, and given in small doses, in the more inflammatoiy and febrile states of the disease ; or when prescribed in progressively larger quantities, with diuretics, the spirit, ajther. nit., opium, &;c., as the vascular excitement subsides, and febrile beat disappears ; and in large doses (from five to ten grains), with ammonia, ammoniacum, senega, opium, &c., when exhaustion and difficulty of expectoration from deficient power are urgent ; it is one of the most valuable remedies we possess in this, as well as in several other diseases. 76. f. The inhalation of emollient and medi- cated vapours are occasionally of much benefit in the sthenic form of the disease, but chiefly in its first and second stages. The vapour arising tiom a decoction of marsh mallows, or from linseed tea, or from simple warm water, is the best suited to this state ; and should be einployed from time to time, the temperature of the apartment being duly regulated through the treatment, and constantly preserved from about 66° of Fahr. to 75°, Dr. Paris recommends, during the dry easterly winds of spring (when the disease is so prevalent), the vapour of warm water to be diffused in the pa- tient's apartment. In the early stage it may be of advantage. In the case of the son of an emi- nent medical writer, attended by Dr. Gordon, Mr. Annesley, and myself, this was tried in the state of the air alluded to, but with no benefit. The case terminated fatally, from extension of the disease to the air- cells and substance of the lungs. When the expectoration becomes whitish, opaque, and thick, the vapour may be rendered somewhat more resolvent by adding a solution of camphor in vinegar, and extract of conium or hyoscyamus to the hot water, or to the emollient infusions now mentioned ; and in the asthenic variety, particu- larly when the difficulty of expectoration, and the fits of dyspnoea, are distressing, or when the excretion of the morbid matter is impeded or suppressed from want of power, the medicated vapours and gases recommended in the chronic state of the disease (§ 98.), and in humoral AsTiijiA (§88.), may be tried. 77. g. There are various medicines which are occasionally useful, when exhibited in appropriate states and periods of the disease. Amongst these, narcotics and sedatives deserve an especial notice. Opium should not be exhibited alone, as long as febrile action is great ; but, in combination with antimony, or ipecacuanha, and nitre, it is often a most valuable medicine. It is best given in small or moderate doses, in conjunction with camphor and expectorants, where vital power is reduced and expectoration difficult (§ 37.). In general, when the skin becomes cool, the boviels are well evacuated, and the air-tubes remain irritable, opium, or some other narcotic or anodyne, is in- dispensable. Opium, and others of this class of me- dicines, particularly when judiciously prescribed, are then of service, not only in diminishing the irri- tability of the system and of the air-passages, and in le-sening the cough, the frequency or severity of which often aggravates the inflammatory iiritation of, and determination to, the bronchial surface, but also in ef[ualising the circulation, in determining to S 2 260 BRONCHI — Acute Inflammation of the — Treatment. the skin, and promoting perspiration. In the more phlogistic states of the d:sease, and at its coni- inencement, colcliicum or digitalis will be often of advantage, in diminlsliing vascular action, lo- cal determination, and morbid irritability. They ought, howt'ver, seldom to be used at the same time. In the more stlienic cases, (rigiUiUs is very beneficially associated with tlie preparsitions of antimony. When the sputum is thick and opaque, colcliicum is generally less beneficial than at an earlier peiiod, excepting in conjunc- tion with diuretics and camphor. When the skin has become cool, it is no longer of use. In the Ihiid variety, it is seldom indicated, unless at the commencement of the ilisease, or when combined with ammonia and camphor. Upon the whole, both colcliicum and digitalis are less to be de- pended upon in acute bronchitis, than a judicious combination of antimonials with anodynes, &c. Hifoscifam,us, conium, and the extracts of Jioppii and of lettuce, are also very generally serviceable in the different forms of bronchitis. But with them, likewise, the amount of alvaniage will entirely depend upon the manner in which they are pre- scribed. In the sthenic and febrile states of ihe disease, and at its commencement, they should be associate! with antimonials, ipecacuanha, refrige- rants, demulcents, and emollients (F. 24. 208. 427. 554.); with diaphoretics (F. 394. 563. 809.); and with diuretics (F. 818. 865. 893.); or in other similar forms, of which there are several in the Appendix. When the disorder assumes an asthenic state, or when expectoration is difficult, the cough distressing, and the skin cool, any of the sedatives particular' sed maybe conjoined with eitiier ammonia, camphor, or the fixed alkalies, or with other attenuants (F. 835.), and with ex- pectorants, .'kc. (F. 356. 555. 558. 811. 895.) ac- cording to circumstances. 78. h. When the acute form of the complaint seems to be about lapsing into the chronic, the combination of gentle tonics with emollients and diaphoretics is often of service, as was first pointed out by M. BnoussAis, who allowed also red wines, nfiuch diluted with water, in this state. The infu- sion or decoction of cinchona, or the infusion of uva ursi, may be thus prescribed : — No. CO. R Decocti vel Infusi Cinchonje 3 iijss. ; Liq. Amnion. Acet. 3 jss. ; Mucilag. Acacise 3 ss. ; Spirit. TEtlier.Nit. 3 ijss. ; Tinct. Camptior.-c Coinp. 5 ss. ; Extr. Conii gr. xx. ; Syru[)i Toliitani 3 ss. iM. Capiat Coctileare iiiiuin amplum secunda vel tcrtia quaque hora, vel. Coc-h. ij. quintis vel sextis horis. 79. i. External measures ought not to be over- looked during the course of the disease. In re- spect of local or general depletions, nothing need be added to what has been already stated. The former of ihe.-e should always be preferred when doubts are entertaine:c., formed also the cliief means of cure. All the cases terminated favourably. 82. Ik When the disease is complicated with scarlet fever, the treatment will altogether depend upon the character of the prevailing epidemic, and the circumstances of the case. I'^arly in the complication, local depletions are sometimes re- quired ; and afterwards, full doses of camphor or ammonia, or of both, — particularly if the eruption prematurely disappear, or present a dark tint, or if the anginous afi'eciion assume an ash- colour, or a dark red or brownish hue, — are amongst the chief remedies to be depended on. I have met with severe cases in which the bronchial disease either preceded, or followed, the efflorescence and decline of the eruption in scarlet fever ; and in the course of this association most violent cerebral symptoms have supervened ; thus forming a double complication. These cases, although extremely dangerous, are not necessarily fatal. Local depletion, sometimes to a very con-ider- able extent, may be practised, chiefly by leeches ap|)lied over the sternum, behind the ears, or below the occiput, or by cupping on the nape o the neck; and calomel, antimony, revu'sants, purgatives, camphor, ammonia, ficc, according to the circumstances of the case, should be pre- scribed. Counter-irritation by rubefacient lini- ments is particularly required in complications of the disease with scarlatina or measles. Formulae No. 299. and 300. may be used for this purpose, or the following : — No. 70. R CamphorEE .3j. ; Pulv. Capsici 3ss. ; Oli'i M icis m. XXX. ; Olei 01iva;3Jss.: Liq. Amnion. 3 vj. Misce. Fiat Lininientum. 83. c. The appearance of the disease with measles, either previous to, in the course of, or subsequently to, the eruption ; or even its accession during convalescence, is a very fiequent occur- rence. This association was very common in the winter and spring seasons of 1829, 1030, 1831, and 1832; during which epoch, blood-letting was not so generally indicated, nor so well borne, as in former years, the bronchial affection being more frequently of the asthenic type. In general, however, local depletions are required early in the disease, and, in some cases, may be carried to a considerable extent ; often much further than in its association with scarlatina. I have some- times found it necessary to deplete locally in ijoth these states of complication, at the very time when I judged it proper to exhibit camphor or ammonia in considerable doses. But in many instances, particularly during the years above spe- cified, patients have recovered as readily when no sanguineous depiction has been employed, as where it has. Bronchitis occurring either in the cour.-e of scarlatina, inea^^les, or small pox, re- (piires active counter-irritation and revulsion ; and the means recommended for this purpose ($ 79.) to be decidedly enforced. The observations I have alrewdy made respecting the use of inhala- tion (§ 76.) also apply to such cases. When these exanthemata commence with bronchial .•.ymptoms, emetics are then of decided advantage. And, if they be accompanied vvith sore throat, purgatives ought to be given in decided discs, the bowels freely acted upon througliout, and enemata occasionally thiown up, particularly V. 140. 149. 784. 84. d. When bronchitis occurs in the course of coiiiinued J evcrs, the same general principles of treatment are lequired, as have been .specified in respect of scarlatina and tDcasles. In all these states of compile ition, this disease should be viewed as a marked manifestation, in a particular organ, of the morbid state prevailing more or less throughout the frame ; and it should be kept in recollection, that this affection always, in sone measure, impedes the changes efi'ecled by respi- ration on the blood, thereby increasing the morbid condition of this fluid existing more or le.ss in all severe cases of exanthematous fevers, and at least the disposition to it that obtains even in simple continued fever. I'he extent to which depletion should be carried in this complication, or the propriety of employing it at all must depend upon the character of the fever, of the prevailing epi- demics, and the particular symptoms and circum- stances of the case. I have seen a strong, and regular-living man, with fever thus complicated, very dangerously depressed i)y a S'ngle small de- pletion. Hurgiitives are, however, better borne, particularly when combined with camphor or ammonia ; and occasional large doses of calomel combined with camphor, and followed in a few hours by a cathartic draught, will be found of much service in promoting the functions of the liver, atid enabling it to remove those elements from the blood, which so readily accnmnlaie in it to a hurtful extent, when their elimination by the lungs is impeded. Much advantnge will also arisa from the use of blisters applied for a few hours, and often repealed ; from the use of the rubefacient liniments above specified ; and from the inhalation of the vapour of warm water, with a solution of camphor in vinegar added to it. 85. d. The association of 'the sthenic form of bronchitis vvith tracheitis and lartfiigitis, either afl^ection preceding the other, requires full deple- tion, general or local, or both ; large and repeated doses of calomel, with antimony ; the tepid or warm bath, or semicupium ; internal and external revulsion, by catliaitics, purgative enemata, &c.; emetics, particularly when the paroxysms of suf- focation and stridulous respiraiion are urgent ; the inhalation of watery, emollient, and anodyne vapours ; and a free use of diluents, emollients, ficc, vvith the caibonate of soda, the sulphuret of potassium, small doses of the sulphuret of am- monia, or of the sulphuret of copper, in extreme cases, until nausea or vomiting is occasioned, &c. Blisters are seldom of much .service in this state of disease, particularly whilst the symptoms of croup are present, 'i'hey ought never to be ap- plied over the throat, as occasionally directed, and, in some cases, not without mischiet : although recovery has taken place in others, notwithstand- ing the risk they occasioned of increasing the local irritation. 86. e. One of the most frequent complications presented to us in practice is that of bronchitis with hooping cough. In some cases, this com- plication commences vvith the usual symptoms of catarrh, on which those of bronchitis supervene ; the characteristic signs of hooping cough, par- ticularly the convulsive fits of coughing, with thu S 3 262 LllONCm — Chuon'ic I>flammation of the — Treatment. inspiratory whoop, and vomitings, not appearing tor some days subsequently. In other cases — and those, perhaps the most numerous — llie inflam- matory affection has not appeared until after the invasion of pertussis. Wiien thus associated, bronciiitis may be either sthenic or asthenic ; the one or the other being more generally prevalent in some seasons tiian in others. During the years specified above (§ 83.), the asthenc state was most common ; and I have seen several casps in which sanguineous depletion had been injudiciously practised, particularly as respects quantity. Cerebral symptoms are apt to occur during this complication, and also infiltration or hepatisation of a part of the substance of the lungs. These unfavourable terminations should be anticipated and prevented by sinall local de- pletions,— by leeches applied behind the ears; by the exhibition of camphor combined with ipe- cacuanha, or antimonials, and narcotics, particu- larly conium or hyoscyamus ; by diaphoretics with diuretics; and more especially by the use of tlie liniments and revulsants already recommended {§ 79.). (See Hooping Coi'gii.) 87. f. The simultaneous occurrence of inflam- matory action in both the digestive and respiratory inucous surfaces is not infrequent, particularly in children ; and means calculated to benefit the one, generally aggravate the other, or risk the accession of cetebral disease. I have found small local depletions, followed by the pulv. ipe- cacuanha; comp., combined with small doses of calomel, or h^drarg. cum creta and camphor ; the warm bath and frictions, with the stimulating liniments already specified (§ 79.) ; the applica- tion of blisters for a few hours only, and often re- peated ; theliq. ammonia; acef., with spirit, aether, nit., cainphor mixture, diuretics, &c., constitute the principal means of cure. 88. g. The association of liepalic disorder with bronchitis is not rare. But the affection of the biliary organs does not always precede the bron- chial disease: it often occurs in its progress ; an increased, as well as a morbid, secretion of bile supervening, probably in consequence of the vica- rious increase of function of the liver, and its irritation by, and elimination of, the morbid ele- ments accumulated in the blood, owing to the impeded function of the lungs. 'I'his complica- tion requires the use of mercurial purges com- bined with camphor and antimony, particularly James's or kermes powder (F. 637.) ; external irritants and revulsants, cathartic enemata (F. 151.), &c. A similar treatment is indicated when the disease is connected with the translation of erysipelas, gout, or rheumatism. 89. h. If the inflammation extend to the sub- stance of the lungs or pleura, the antiphlogistic treatment should be rigorously enforced : the so- lution of the potassio-tartrate of antimony ought.to be given in frequent doses, and carried as far as cir- cumstances will permit; internal and external revul- sants resorted to at the same time ; and diaphoretics and diuretics suited to individual cases prescribed. In some instances, either colchicum or digitalis, or both, may be substituted for the antimony ; but they answer better, particularly the digitalis, after this medicine has previously been used. If we have reason to suppose that effusion of serum has taken place in tiie thoracic cavities, diuretics, and, amongst others, digitalis, should be employed ; re- collecting, however, that the accumulative and sinking effects of either digitalis or colchicum sometimesappear very rapidly, and in an alarming degree, when they are given either at the same time or after the exhibition of the potassio-tartrate of antimony. Disease of the brain or its membranes supervening in the course of bronchitis has been considered in the article Brain (§ 186.). 90. The SUB- ACUTE form of bronchitis requires in all respects the same treatment as the acute uncom- plicated disease, but not carried so far ; the activity of the means should have due relation to the acute- ness of the attack, and the effects they produce. 91. 2d. Of Curonic Bronchitis. — M. Brous- SAis has very justly staled the indications of cure in chronic bronchitis to be, 1st, to diminish the general excitability, and to keep the circulation quiet ; 2d, to solicit the excitement and the fluids to other organs, particularly towards the skin ; and, to these I would add a 3d, namely, to re- store the healthy tone and functions of the bron- chial surface, by means which seem to have this effect either directly or indirectly. It is obvious, however, that the accomplishment of the first and second intentions have an indirect influence in bringing about the third. 92. a. General blood-letting is inadmissible in this state of the disease ; and even local bleedings should in many cases be employed with caution. Cupping, however, to a moderate extent, is very frequently required ; and it is evidently more ad- vantageous to repeat the operation to a small extent, than to abstract a large quantity at once. When the disease has existed long, and is at- tended with a copious discharge, much general debility, and absence of pain upon full inspiration, even local depletion cannot be ventured on. Next in importance to depletion is counter-irritation ; and for this purpose several means are presented to us. When there is a tendency to acute action, or when the cough is at all painful, and the spu- tum puril'orm, either the tartarised antimonial ointment, or a large issue or seton in the side, is preferable : but when there is very maiked relax- ation of the bronchial mucous surfaces, blisters, and rubefacients, or a succession of them, seem more appropriate. I have, however, found in a number of cases, the Unimenls, No. 296, 297. 311. in the Appendix, productive of much greater advantage, and more generally applicable, than either blisters or the ointments. They may be employed once or twice daily. The vapour arising from tliem, and diffusing itself around, has also a direct and beneficial effect, by being inhaled, upon the diseased mucous membrane. JM. Broussais is very favourable to the use of setons and issues ; and 1 have seen several instances of marked benefit from them, particularly in the obstinate state of the dis-ease which simulates tubercular phthisis. He also reconmiends warm cataplasms to the chest, made rubefacient by the addition of mus- tard. I have seen advantage produced by warm bread and water poultices applied over blistered surfaces, and the seats of issues formed by the mezercon bark, and by the same kind of poultices, to each of which one or two table-spoonfuls of the nitto-hydrochloric lotion (F. 834.) had been added. l$ut it is chiefly early in the chronic disease, or when it has recently passed into this state from the acute, that issues and setons prove successful. Tluy exliauit the energies of the system loo BRONCHI — Chronic Inflam much to be of service in the latter stages, or when i the disciiarge I'rom tlie lungs is profuse, and tlie vital energies much depressed. 93. b. Expectorants have been much em- ployed in this state of disease ; and though more appropriate in it, than in the acute, they are often hurtful from their too exciting operation on the vessels of the bronchial surface. This is especi- ally the case with srjuills, ammoniacum, and se- nega, which ought to be used with mucli caution, and never whilst the sputum is purulent, and pain or soreness complained of in the chest, with fever, heat of skin, &c. The best expectorants are those which are also astringent, or at least not very heating : amongst . these, the sulphate or oxide of zinc, with small doses of myrrh or gal- banum, and extract of conium ; or small doses of sulphate of quinine, or of the sulphate of i)0«, with ipecacuanha and opium; or the sulphuret of po- tassium, and the balsamum sulphuris (i\ 21, 22.), are the most eligible, wiieu the state of the ex- pectoration, of the skin, and pulse, indicates the propriety of having recourse to tonic expectorants. Opium has been too much reprobated in cases of tiiis description, as well as in acute bronchitis, owing to the dogma that it suppresses expecto- ration. 1 believe, however, that, when judiciously combined, particularly with ipecacuanha, with the chloride of calcium, or either of the sulphates of potash, of alumina, or of zinc; or with the nitrate of potash; or with campiior, with kermes mineral, or the compound powder of antimony, according to the circumstances of the case, it is a valuable medicine ; and tiiat the diminution of the expectoration produced by it, and which has been unaccountably dreaded, is, when it occurs, a consequence of its changing the morbid slate of the vessels forming tlie excreted matter. If it be the object — as necessaiily follows from the doc- trine of some writers — to preserve a copious and free expectoration in this disease, how can it ever be cured? Frequently have I seen this end pur- sued, as if it constituted all that was required, and squills, ammoniacum, senega, &c. given accord- ingly ; and the more abundant and easy the ex- pectoration thereby produced, the more rapidly did the powers of life give way, or complete hectic, with all its attendants, manifest itself. The following have proved serviceable when the pulse was soft, and not remarkably frequent ; the skin cool and moist ; the sputum veiy abundant, and consisting chiefly of mucus ; and the weakness and emaciation considerable : — No. 71. R Pulv. Ipecacuanhae gr. j. ; Camphorae rasse gr. ss ^j. ; Extr. Conii gr. iv. — vj. ; Mucil. Acaciae q. s. M. Fiant Pil. ij. ter die capiendae. No. 72. R Zinci Sulphatis gr. vj.; Massae Pilul. Gal- ban. Co. 9 j.; Extr. Conii 5 ss. ; Syrupi q. s. M. Fiant Pilulae xij., quarum capiat unam tertiis horis. No. 73. R Pulv. Ipecacuan. Comp. gr. xxv. ; Quininas Sulphatis gr. vj. ; Pulv. Acaciae 9j.; Extr. Lactucse 3j.; Syrupi Papaveris q. s. M. Fiant Pilulje xviij., quarum capiat binas ter quotidie. No. 74. R Quininre Sulphatis gr. vj. ; Pulv. Ipeca- cuanhae gr. iv. ; Camphorserasaegr. iv. ; Opii Puri gr. vj.; Pulv. Had. Glycyrrh. (vel Extr.) 3ss.; Mucilag. Acaciae q. s. Misce bend, et fiant Pilulae xx., quarum capiat duas ter quaterve quotidie. No. 75. R Balsami Sulphuris 3 ss. ; Pulv. Ipecac, pr. vj.; Extr. Conii 9ij. ; Pulv. et Mucilag. Acaciae q. s. M. Fiant, secundum artem, Pil. xx., quarum capiat binas quarta quaque hora. No. 76. R Solut. Chloridi Calrii TTl xx — xxxv. ; Mist. Camphors? 3 x. ; Tinct. Opii Comp. (F. 729.) "l x. _xx.; (vel Tinct. Camphorae Comp. 3jss.). M. Fiat Haustus ter die capiendus. 94. c. In cases of this description, any of the jiATiON OF THE — Treatment. 263 formulse given under the head Balsams, in tiie Appendix, may be employed. Dr. Armstrong strongly recommended the balsam of copaiva ia chronic bronchitis ; but it is seldom beneficial, and is certainly inferior to the other balsams and terebinthinates in this affection ( F. 486, 487. 53B. 571.). In the more advanced stages of chronic bi'onchitis, particularly when colliqua- tive sweats or diarrhoea occur, the most essen- tial benefit has been derived from the following mixture ; but even where the bowels are regular, I have found it by no means productive of costive- ness. At the time that I was giving this medicine to the third patient on whom I had tried it, a case, showing the success of a nearly similar treat- ment, was published by Dr. Hastings {Midland Med. Repos, vol. ii. p. 376.), — a coincidence fully evincing the propriety of the practice. No. 77. R Mist. Cretae 3 vjss. ; Vini Ipecac. 3 jss. ; Tinct. Opii 3 j.; (vel Tinct. Camphorae Comp. 3 vj ) ; Syrupi Tolutani oiij. M. Capiat Cochlearia duo larga ter quaterve in die. The cretaceous mixture will often be of service when used alone, or with a little of the chloride of calcium, or with the addition of mucilage, or of hyoscyamus, or conium, or extr. lactucaj, or the exir. papaveris, according to circumstances. In this state of the disease, also, I have seen sulphur given with advantage in mucilaginous electuaries. Ur. L. Kerckuoffs states, that he has admi- nistered it with success, in conjunction with the powder of the while willow bark. M. Buoussais relies chiefly upon mucilages and demulcents, combined with ipecacuanha and opium, and cer- tainly with great justice. (See F. 284, et seq.). The extr. lactucae, as recommended by Dr. Dun- can, may occasionally be substituted for the opium. The decoctions of Iceland moss, and the infusions of coniuiyi, or marruliinm, of the ura ursi, or of the melissa ( F. 230. 237, 238.245. 267.), with mucilages, anodynes, and ipecacuanha, are also very serviceable. 1 have given the pre- parations of iodine in a few cases, in small doses ; and in some instances, especially when there was lilile or no febrile action, nor much emaciation, benefit appeared to be derived from them. 95. d. When the disease is attended with dys- pnoea, and profuse or difficult expectoration, emetics are of great, although often of temporary advantage, particularly in aged persons. Ipe- cacuanha, or sulphate of zinc, with the addition of diffusive stimulants (F. 402.), are the most appro- priate in the majority of cases. After their opera- tion, and if the strength be not very much re- duced, the digitalis or colchicum may be prescribed, in conjunction with diuretics and gentle astrin- gents (F. 203.). These active medicines are chiefly suited to the more febrile states of the dis- ease, or when soreness or slight pain of chest are complained of, with a puriform expectoration ; and ai'e best combined with small doses of blue pill, camphor, and opium, — with pectoral infu- sions and mixtures (see App. F. 244. 426. 497.) with demulcents (F. 389.), and with diuretics (F. 194, 195.236,237.). Dr. Hasti.ngs recommends a combination of digitalis and colchicum ; but I have seen more harm than benefit occasioned by it in some cases of chronic bronchitis, — a result which might, a priori, be expected from the associated operation of two most depress- ing medicines, given in a state of disease charac- S 4 2'34 BROA'CHI— Chronic Inila terir3ecl by iiiitative, rather than by acute, vas- cular aciion. I have found thein most beneficial when exhibited sinjily vviih diuretics, or diapho- retics, in the chronic form of bronchitis conse- cutive of exantheuialous fevers ($ 54.) ; sometimes resorting also to the warm bath, followed by frictions of the surface with the liniments F. 297. or 311. Tlie combination of colchicum and digitalis, in small or moderate doses, has proved more serviceable, in my practice, in tubercular disease of the lungs, or when bronchitis has been complicated wiih tubercles, or with pneumonia. In cases where tiie propriety of giving these medi- cines is doubtful, a combination of them with the alkalies, or their carbonate-;, and with tonic infu- sions or decoctions, or F. 515 — 517., or the following, may be prescribed: — No. 78. R Pulv. Colchici(vel Pulv. Digitalis) gr.j ij.; Massse Pilul. Hydrarg. gr. ij.; Massae Pilul. Galbani Comp. gr. v.; Extr. Opii gr. ss.; Syrupi q. s. M. Fiunt Pil. ij. bis terve quotidie sumendae. No. 79. R Infusi Uvae Ursi 3 xij. ; Acidi Sulph. Dil. 711 XX.; finct. Digitalii 111 x xv. ; Tinct. Cainphorae Comp. 3 j-; Syriipi Papaveris 3 ss. M. Fiat Haustus, bis terve in die sumendu*. No. 80. R Sodae Carbon, (vel. Liq. Potassie) 3 j. ; Int'u.si Calumbse (vel Uecocti Cinchonas) 5vj.; Tinct. Semin. Colchici 5j — 5jss. ; Tinct. Digitalis 111 xxx, M. Capiat Coch. ij. larga ter in die. No. 81. R Mist. Diosma; Crenatae (F. 396.) 3 vss.; Tinct. Digitalis ITl xxxv. (vel Tnict. Semin. Colchici 3 j. — 3 ij.1 ; Extr. Conii gr. xxvj. (vel Extr. Lactuc£e .3s£.) ; Syriipi ToUitani 3 ss. JVI. Fiat Mist., cujus sumat Coch. ij. larga ter quaterve in die. No. 82. iv Pulv. Acacia? 3 ij. ; Mist. Amyglal. Dulc. et Mist. Camphora? aa 3 iijss. ; Acidi Hydrocyanici lllxj. — xviij.; Spir. .Sther. Suljih. Comp. 3ij. — iij.; Oxy- niellis Scillae 5 ss. M. Coch. ij. vel iij. larga ter in die. 96. Hydrocyanic acid is often of much service in the chronic forms of bronchitis, especially in their complications with disorder of the digestive organs, and may be exhibited vsith demulcents, gentle tonics, astringents, or expectorants, or as prescribed in the Appendix (F. 344. 858.). When the disease is associated wiih derangement of the hepatic functions, or even of the stomach and bowels, it will be necessary to give small doses of blue pill, or of the hydrarg. cum creta, with deobstruents and gentle tonics ; and, on some occasions, full doses of calomel trom time to time, either alone, or in suitable forms of combination, foll(»wed by a purgative. No. 83. B Pilul. Hydrarg. gr, vj. (vel Hydr. cum Creta gr. xviij.) ; Pulv. Ipeciciiaidia; gr. viij. ; Extr. .Sarzae et Ext. Taraxaci aa 3j.; Cum. Assafcetidae et .Saponis Castil. a;T 3j. M. Fiant Pilulce xlviij., quarum capiat binas, ter quatervo in die. No. 84. R Hydrarg. Chloridi gr. vj.; Kermes Mineral, gr. xij.; Campliorse ras£e gr. xij. ; Extr. Taraxaci 3 ijss. ; lixtr. Hamuli 3jss. M. Divide in Pilulas Ixiv., quarum capiat ij. vel iij. ter quaterve in die. 97. 'i'he treatment which has been already recommended for Humoral Astfima (^see particu- larly § 100, et omn. seq.), and the tonics and astringents, especially the sulphates of zinc, iron, or quinine, already noticed (§ 93.), are ajiplicablc, with but little vaiiiition, to the more chronic and humoral states of the disease, ])articularly in per- sons advanced in life, and in childien, when it has assumed a chronic form after hooping-cough and the exanthemata. 1 have also occasionally seen benefit derived, in the.se states of chronic bronchitis, from the clilotale of potash, given to iidul's, in from two to six grains, three or four times a day. This medicine was often ])rescribed by my.sell and one of my colleagues, at the Infir- mary for Children, during the yeais 1826 — 1828, MJIATION OF THE TbUATMENT. and sub.sequently, in the more chronic forms of bronchitis, and in vaiious disorders of debility; in which latter it was generally beneficial : but little advantage was frecjueiitly derived Irom it in this disease, unless in those forms of it now men- tioned, where it was often of great use, particu- larly when the morbid action seemed connected with deficient tone of the bronchial vessels, and of the system generally. Mr. Murray, in a recent publication,. states, that he has employed it successfully in consumption, — a name which has usually comprised most of the cases of this form of bronchitis. 98. e. Inhalations of medicated or tar vapours have been recommended by Crichton, Paoensif.- CHER, HuFELAND, FoRBES, HASTINGS, ElLIOT.'^OX, Gannal, and others noticed in the article on Asth- wa, and been disapproved of by son:e. 1 believe that they have frequently been used in too concentrated a state ; or loo much of the vapour has been dif- fused in the respired air, occasioning irritation of the bronchial membrane, ins'.ead of a gently tonic and healing effect. Whenever any of the vapours advised in this disease produce an in- crease of the cough, either its use should be left off, or its strength greatly reduced. The manner of having recourse to such vapours, as well as the choice of substances emitting them, have not, in my opinion, always been judicious. The tar vapour is occasionally of service, chiefly from the quantity of turpentine it contains ; while the acrid empyreumatic fumes which it also emits, counter- act whatever good efl'ect the former con,stituent migiit produce. Would it not, therefore, be pre- ferable to try the effects of the substance from which the advantage is obviously deiived ? I have done so in a few cases of this disease, and seen marked benefit result from it ; and therefore re- commend it to the notice of other practitioners. In former times, medication by fumigations and vapours was much resorted to ; and it is probable, that the early use of incense and various balsamic and aromatic fumes in religious rites had some re- lation to their prophylactic efl'ect against disease, or even to their curative influence ; the more espe- cially as the p;iests of antiquity also exercised the healing art. In several of the productions attri- buted to IIiitocrates, the inhalation of vapours and fumes of various resinous and balsamic sub- stances is recommended ; and a number of writers in the 16th, ]7tli, and 18th centuries, have ad- vised a nearly similar method, and employed camphor, benzoin, amber, frankincense, myirh, storax, assafcetida, sulphur, cloves, the balsams, &.C. for this purpose. This piactice was employed by Benkdici' (see his Theuirnm Tabidorunt') in consumptive diseafses : and 15oeriiaave gives several formula;, in his Materia Medica, for fumi- gations with the above substances. Mead, in his Motiita el I'recepla, offers several judicious remarks on this subject. He observes — "that fumigation with balsamics, &c., is of vast service in some cases : which is to be done by throwing the ingredients on red coals, and receiving the f'uines through a proper tube directed to the wind- pipe." After noticing the undcseived neglect of this practice, and the projiiiety of thus ajjplying nudical substances directly to the seat of dis- ease, he states, that the smoke of the balsam of Toll! conveyed into the lungs, or (he smoking this substance like tobacco is of signal service in BRONCHI — Chronic Infla diseases of ihis orgnn (|). 58.)- It appears from tlie writings of FRACASioni ihat the fumes of cinnabar were much employed by iiihiilalion in the treatment of the constitutional forms of sy- philis, at an early perioJ of the history of that disease, when it assumed a pestilential form. 99. Notwithstanding the unsuccessful attempts of Beddoes to revive tlie practice, by employing the elementary and permanently elastic gases, but according to views too exclusively chemical, the practice of inhalation has long been neg- lected or umleservedly fallen into the hands uf em])iiics. Very recently, however, it has been brought again into notice by RI. Gannai., !\Jr. Murray, and Sir C. Scuda.moue ; and chlorine giu, the fumes of iodine, and watery vapour hohling in solution various narcotics, have been recommended to be inhaled. I have tried those substances in a few cases of chronic bronchitis ; but in not more than two or three cases of tuber- cular phthisis, i'he chlorine was used in so di- luted a state as not to excite irritation or cough. The sulphuret of iodine, and the liquor pota^sii indidi concentratus (F. 328.) were also enij)loyed ; one or two drachms of the latter being added to about a pint of water, at the temperature of loO°, and the fumes inhaled for ten or twelve minutes, twice or thrice daily, 'i'he tinctures or extracts of hyoscyamus and coniuni, with camphor, added to water at about the above temperature, were likewise made trial of; and, although the cases have been few in which these substances have been tlius used by me, yet sullicient evidence ol advantage has been lurnished to warrant the recommendation of them in this state of the disease. 100. Inhalations also of the fumes of the bal- sams, of the tsrehinlhinates, of the odoriferous resins, &c., are evidently, from what I have seen of their effects, of much service in the chronic forms of bronchitis : and I believe that they have fallen into disuse, from having been inhaled as they arise in a column or curient from the sub- stances yielding them, and before they have been suflicient'y diffused in the air. When thus em- ployed, thej' not only occasion too great excite- ment of the bronchial surface, but also intercept an equal portion of respirable air, and thereby intertere with the already sufficiently impeded function of respiration. M.NysTEN has shown ( D(ct. des Scien. Med. t. xvii. p. 143) that am- moniacal and other stimulating fumes, when in- haled into tl'.e lungs in too concentrated a state, produce most acute inflammation of the air-tubes, genei-ally terminating in death ; and has referred to a case in which he observed this result fiom an incautious trial of this practice. I conceive, therefoie, that the vapours emitted by the more fluid balsams, terebinthinates, the resins, camphor, vinegar, &c., and from chlorine and the pre- parations of iodine, should be more diluted by admixture with the atinosphere, previously to being inhaled, than they usually are. According to this view, I have directed them to be diffused in the air of the patient's apartment, regulating the quantity of the fumes, the continuance of the process, and the frequency of its repetition, by the effects produced on the cough, on the quan- tity and state of the sputa, and on the respiration. The objects had in view have been gradually to diininisli the quantity of the sputun), by changing MMATION or THE TREATMENT. 265 the action of the vessels secreting it; without exciting cough, or increasing the tightness of the chest, or otherwise disordering respiration. From this it will appear, that the prolonged re;.pira. tion of air containing a weak dose of medicated fumes or vapours, is to be preferred to a short inhalation of them in their more concentrated states. The want of success which Dr. Has- tings and others have experienced, evidently has been partly owing to the mode of adminis- tering them, and partly to having prescribed them inappropriately. When the patient com- plains of acute pain in any part of the chest, as in some of Dr. Hastings' cases, they are as likely to be mischievous as beneficial. Where benefit has been obtained, it will be found that it was when the fumes of the more stimulating of those substances were diffused, in moderate quan- tity, in the air of the patient's apartments ; or when he passed, at several periods daily, some time in a room moderately charged with the vapour or fumes of the substance or substances selected for use. (See the remarks on Inhalation in Humoral Asthsia, § 88., for an account of va- rious medicines that may be employed in this 7nanuer,y 101. /. Sponging the surface of the chest, and trunk of the body, first with tepid, ami afterwards with cold lotions, has often been practi-^ed by me with advantage in several states of this disease. When the expectoration has been profuse, the debility great, and little or no febrile heat pre- sent, 1 have preferred for this purpose the nitro- hydrochloiic acid lotion (F. 834.), in a warm or tepid state, night or morning, or both. When the disease is more ac'ive, the habit of body beino- nevertheless, relaxed and debilitated, a solution of common salt in water, or the lotion, l\. 54., seems preferable; and the directions given re- Sjjecting this treatment in the article Asthma (hmenl to admit of this mode of deiivation being satisfactorily employed. In the intervals between the (•xiiibitioii of ijurgatives, diuretics and diaphoretics may be exhibited, and the cutaneous functions promoted by wearing flannel next the skin during the vvinler and spring months. 116. Kipectonints are very much employed in this afFection ; but some of this class of medicines are seldom of benefit in it, unless combined with opium. The balsams and teiebinlhinates (F. 484— 4ii7. 48'J.); the sulphate of zinc, witii iiiyirh, or the compound (^albanum pill ; and either of ihesc, witli camphor and opium ; arc often ol si.rvic.'. | „ adJiiion to these, inliaLninns, BRONCHIAL FLUX — Treatment. as recommended in another part (j§ 99, 100.), may be employed. Altiiough astringents and inhalations are often required, yet we should be cautious in using them when the disease has been of very long continuance, particularly in persons advanced in age, or when there is any irregularity of the action of the heart, or physical sign of organic change about this organ, complicated with it ; inasmuch as the arrest of an habitual discharge will, in such circumstances, risk the supervention of effusion in the cavities of the thorax. It will be more judicious, in these cases, to confide in purgatives combined with hitler tonics ; in diuretics, and in diapiioretics, so as to moderate the discharge, and prevent its increase, or its exhausting effects upon the system. At the same time tiie vital energies should be pro- moted by a light nutritious diet, moderate exercise, and cliange of air, with the sulphureous or gently tonic mineral waters. In other cases, where the age of the patient, the regular or healthy state of the heart's action, the absence of leucophlegmasia, and the circumstances of the case altogether, are such as to preclude dread of the consecpienees of suppressing this discharge, cold sponging the sur- face of the body by the nilro-hydrochloric lotion, 6iC. (§ 101.), and the liniments already noticed (K. 296.311.), with the internal use of the more astringent Ionics, pariioularly the sulphate of iron or of quinine, in addition to the measures already recommended, may also be practised. BiBLioG. AND Refer.— il/o>7io/, Priiiceps Medicus, 4 o. Uost. 1GG5. — liwdcrer, Disser. de C'atarrlio l^luliisni Meiitientc, 4to. Goet. 1758. — Ric/iter, On Mucous Con- sumplion, in Miid. and Sui gieal Observations. Ediiibiirgb, \1[H. — Jiecldues, On tlie Medicin^d Use of Fuctitious Airs, &c. Brist. ITS)'. — Engleliart, Dt': CiiVdnho IiiHainmatorio, 4to. Lund. 1799 La Roche, Essai sur la Catarrlie I'nl- nionaire Aigu, 8vo. I^aris, llf02 licrtraud, Sur la Dis- tinction da Catarrlie, de la Pleuresle, et Feiipneum. iS;c. ■lio. Paris \%•, in llu/c/and'a Joiun. der Pract. lleilk. Nov. 1827 Crichlvn, On the Xreaimentof several Varieties of Pulmonary Consumptiiin, and on the Vapour of Tar in that Di.sease, 8vo. Lond. 1823. — Elliot- son, Loiul. Medical (iazette, vol. viii. p. 28'J. ; and Lancet, vol. xvii. p. 4(17. — ISai/lf, liecherches sur la Phthisic (in some cases of clinniiv hnmchilis found the bronchial sur- face pale, and irillhiiil i/itiuae). obs. xlix. p. 31)2. Paris, 1810. — Abercroiiilne, iij laliii. Medical and SurgicalJourn- nal, vol. xvii. p. 3'J. (t'lceralion of the bronchi.) — J- BRONCHOCELE — Caus Forbes, On Tar Vapour in Discnses of the Lungs, &c. in Meiiical and Physical .Inurn. vol. xlviii. p. -2X1 tV/l- liams. On the Physical Signs of Diseases of the l.ungs, &c.p.G() 8vo. Lond. 1829 Foihfs, Original Cases, illus- trating the Use of the Stethoscope and Percussion, 8vo. JLond. IS24 Grndiin. Histoire Anatom. des Inflamma- tions, &c. t. i. p. Mr\ Paris, 1H20. — fyn'ti/it, Keports of Medical Cases, &c. p. 127. 4to. Lund. 1827 Graves, in Hcns/iaw's Med. and .Surg. Journ. vol, vii. p. 1"J3. HRONCIIOCELE (from Bpoyxos, ihroat, and Kii\7], a swelling). Syn. Hernia Gulturalis, Gossiiin, Liiitrohretibriicli, Kvopf, Ger. Goitre, Fr. / roncncete, Gnzzc, Ital. Thifrophraria, Aliberl. Ciimtitche Tliyroidea,ConTadi. Goitre, '' JJerbiishire Neck." Classif. 4. Cliiss, Local Disenses ; 6. Order, Tumours (CitWeu). 6. Clnss, Excernenl Function; 1. Order, Affecting the Paren- chyma (^Good). IV. Cl.ass, IV. Order (Author, see Preface). 1. Defix. CJirniiic enlargement of the thyroid gland, sometimes wilh change in the snrrounding parts, generally increasing stowlq, oj'ten continuing for years, and depending upon constitutional causes. 2. I. Cau«e=, and IMonniD Relations. — This disease is endemicul in Derbyshire, and some other parts of this country ; but most remarkably so in Switzerland, various adjoining districts, and in some places in South America. It usually occurs during the early epochs of life, most frequently about the period of puberty, in persons of a weak and lax fibre, and generally in females; it very seldom being observed in Great Britain in males : but the comparative frequency of it in the latter sex is greater in Switzerland, and other parts where it is very prevalent, and is connected with cretiniappear after a resilience in Paris. It has been vi;iy generally imputed to the water used by those afi'ictei!. Since the time of Pliny, il has been attributed to the use of snow water. But it prevails in several places where this cause does not exist, as in Sumatia, and several parts of South America. The Svvi~s who drink snow water are free from the disease, while those who use hard spring water are most commonly af- fected. Captain Franklin states, that at a part in his journey to the Polar Sea, where bronchocele prevails, it is confined to those who drink river water, and that those who use melted snow esca])e. Mr. Bally ascribes ils frequency, in a district in Switzerland, to the use of spiing water impreg- nated with calcareous or mineral substances ; and he states, that those who use not this water aie free from both goitre and cretinism. Dr. Coindet observed that the inhabitants of Geneva, who drink the hard pump waters, are those most liable to bronchocele. lis prevalence in Nottingham is ascribed by Dr. Manson to the same cause ; which also seems to occasion it in Sussex and Hampshire, in the valleys of which counties it is frequently met v\ith. 5. That this is, however, not the only cause, may be inferred from other physical circum- stances connected with its endemical preva- lence. Its great frequency in low, moist, marshy, and warm valleys, and the exemption of the inhabitants of dry and elevated situations, have been shown by Larry, FoDErtii, Sacssure, Reeves, Clark, Valentin, Postiglione, and J. Johnson, as respects various districts in Swit- zerland, the Tyrol, Carinthia, the Vallais, and the north of Italy. Similar facts have been ad- duced by Dr. Gibson, and Humboldt, in regard to the United States, and South America. It is most probable, however, that the exhalations from the sod of those localities are not the only, but a concurrent cause, co-operating with others pos- sessing equal influence in the production of the disease, and particularly with the nature of the water. But it as certainly sometimes appears where neither of those causes can be traced, as in London ; disorder of some kind in the uterine functions being the most frequent morbid re- lation it has presented, as far as my experience has aone. Its connection with cretinism in the districts on the Continent above alluded to, and the occasional appearance of the disease at very early periods of life — it being even somet'mes congenital, in these countries, as well as being more common there in the male sex than in this country — are matters of some interest, and not readily admitting of explanation ; since po- verty, close, confined, and ill-ventilated apart- ments, are not the chief causes of those phe- nomena, as shown by their absence in the poorest classes in this metropolis. Dr. Pai.ry has seen goitre follow diseases of the heart, and epilepsy. Flajani has noticed the common oc- currence of palpitations and afltctions of th.e lungs from the disorder it has occasioned of the respiratory function, ^^'hen the tumour is very large, or hard, or v\hen it has increased sud- denly, it not infrequently occasions most urgent sympton)s, by its pressure on the trachea, oesc- phagus, and jugular veins. 6. As respects the external and internal appear- 270 BRONCHOCELE- ances of this tumour, I may briefly observe tliat it affects generally the whole gland ; but is also sometimes confined to the lateral or to the middle lobes : it is more rarely large on one side than another. At first it is commonly compact, rounded and equal ; but, as it increases, it is either soft and flabby to the touch, or unequal, irregular, hard, and obscurely lobulated. It is usually free from pain, and is not discoloured. When it is greatly increased in size, and is soft, it appears pendulous, chiefly owing to its lower parts being most enlarged. When the tumour is divided, the cells of the gland are found, accord- ing to Hunter, Baillie, and B. Bell, filled with a more or less viscid fluid ; and are of various sizes, generally from that of a pea downwards, not only in different cases, but even in the same f;land. In the older, harder, and more irregular forms of the tumour, melicerous, sleatomatous, cartilaginous, and ossific deposits have been met with in parts of it, by Celsus, DeHaen, Fheytag, GiRAUD, Hedenus, and others. The usual state iu which this disease presents itself, obviously, is that of an increased secretion into the cells of the gland, distending them more or less ; the other changes sometimes observed, being consequences of obscure irritation induced in parts of it during its continuance or growth. 7. II. Diagnosis. — It is necessary to be aware that other diseases of either a more acute or ma- lignant character may affect the thyroid gland and its vicinity, and be mistaken for bronchocele. 1st, The gland may be either healthy, or but little enlarged ; the tumour consisting chiefly of thick- ened surrounding cellular tissue, sometimes con- taining cysts filled either with a serous, albumin- ous, or purulent matter. Large encysted tumours may also form in the course of the trachea. But these may be readily distinguished by tiieir situ- ation, form, and fluctuation. 2d, The gland itself may be the seat of chronic or acute wjlammation . In this case the swelling increases more rapidly, but seldom attains a large size ; and is generally attended by redness of its surface, and increased temperature. It is also painful, particularly on pressure, and is very htird. I lately saw a case of this description in a married female of about thirty, who was also seen by Mr, Lloyd, where the inflammation had proceeded to suppuration, and had terminated in an external opening. I believe that inflammation of the gland never occurs but in scrofulous habits. 3d, The gland may also be the seat of scirrlnis, which may ultimately go on to carcinomatous ulceration ; but this is a rare occurrence. In this case the gland is very hard, seldom large, sometimes scarcely increased in bulk, and is the seat of sharp darting pains. It is only met with in persons advanced in age. ALiiiEnx states, that he has observed a case of goitre pass into cancer; but I doubt tiie fact ; cancer having a very wide and indeterminate signification with this writer. The disease can scarcely be mistaken for aneurism of any of the thyroidal arteries, if any share of attention be directed to the subject. Bronchocele has been considered in the light of a Btrumous disease — as a form of scrofula. Dr. I'osiici.ioNE, however, contends that no connec- tion exists between these diseases. As respects the slate of nioibi.l action in the tjlanci, the con- con.itniil phenomena, and the respective tennin- DiAGNOsis — Treatment. ations of both diseases, there is certainly no inti- mate relation between them. 8. Ill, Treatment. — Previous to the use of io- dine in the cure of bronchocele, nunierous remedial means were recommended by writers. Of these, the most common were frictions with various liniments ; dry rubbing ; stimulating and astrin- gent lotions; cold bathing, and cold douches; mercurial applications ; plasters with cicuta and ammoniacum, or with ammoniacum and hydiarg. ; repeated blistering; leeches applied to the tu- mour ; electricity and galvanism ; moxas, issues, and setons ; ligature of the arteries supplying the gland ; and extirpation of the gland itself. Amongst the internal remedies recommended, I may notice the various preparations of mercury ; digitalis combined with camphor (Ossiander); sulphuret of potassium ; chloride of barium (Pos- tiglione) ; cicuta or belladonna, either alone, or with the chloride of barium ; the chloride of cal- cium ; preparations of potash and soda ; various mineral springs ; the use of sea water, and of dis- tilled water; the ammonio-chlorideof iron ; burnt sponge, given either alone, or with mercury ; and the ashes of {hefucus vcsiculosus (Russell). 9. Of all these, the most celebrated was burnt sponge ; and, after the discovery of iodine, this substance, which, having been found by Dr. Straub, of Berne, to be contained in oflicinal sponge, was recommended by him in 1829, and adopted by Dr. Coindet, of Geneva : and so suc- cessful has this medicine proved in the treatment of bronchocele, that of a hundred aud twenty cases treated with it by Dr. INIanson, of Notting- ham, seventy-nine were cured, eleven greatly relieved, and two only were not benefited by it. Of several cases of the disease which have come before me since the introduction of this remedy into practice, there has not been one which has not either been cured or remark- ably improved by it. I believe, however, that although it has been found the most certainly beneficial of any medicine ever employed in bronchocele, some other practitioners have not derived an ecjually uniform advantage from its use. I can account for this only by considering that it has been given in too large and irritating doses, or in an improper form ; and without due attention having been paid to certain morbid aud constitutional relations of the disease during the treatment. The cases of two females who were lately completely cured by the remedy confirm this inference. They had both had the tumour for seve- ral years, one for nine years ; and had, on former occasions, gone through long courses of iodine, prescribed by judicious and eminent practitioners, but without advantage. When this medicine was ordered by me, it was, therefore, with great difliculty that they were induced to have recourse to it again. It was ordered in very small doses, often repeated, and strict attention was paid to the state of tiie secretions, and to the uterine functions. In the course of a fortnight an im- ])rovement was manifest ; and of a few weeks longer, a great decrease of the tumours had taken place. One of these female-^, a married woman, wiio had been once pregnant nine years before, upon the disappearance of the tumour came with child ; soon after which it somewhat suddenly reappeared, but the resumption of the iodine again clisjjcrsed it. Tiie preparations given BULL^. 271 in the Appendix (F. 204. 277, 278. 302. 323, 324.) are those which an extensive experience of its effects in various diseases, as vvell as in this, has led me to adopt. 10. In respect of the use of iodine in bron- chocele.the weaker preparations sliould be at first preferred ; and care should be taken never to exhibit ihem to the extent of irritating the stomach or bowels: when this effect is produced, little or no benefit will be derived from them. The suc- cess which Dr. Manson and M. Lvgol have de- rived from this valuable medicine, 1 know from experience to be chiefly owing to the small and Soluble doses in which they exhibited it. In some of the more obstinate cases, it will be often requisite to assist the operation of iodine by other means. Sometimes the occasional use of emmenagogue aperients will be of much service ; and when the uterine functions evince disorder, as they very frequently do in cases occurring in females, I have usually directed either the bi-borate of soda, or milk of sulphur, to be taken, in the form of electuary, every night (F. 89. 281.). A calomel purge will also be sometimes of service. I have generally preferred the internal to the external use of the medicine in this disease. In some more obstinate cases, they may be both employed ; but its external application should be of the mildest kind. In some cases, a moderate blood-letting may be premised ; and some writers recom- mend that leeches should be applied to the tu- mour itself. Nearly all the cases which I have seen, having occurred in females, in whom it appeared requisite either to promote the menstrual discharge or to subdue uterine irritation, I have usually directed the bleeding, when practised, to be performed in the feet, or leeches to be applied to the groins. Dr. Coster has adduced a case in which galvanism materially assisted the iodine in removing bronchocele. 11. Dr. KoLLEY has stated, that iodine should not be exhibited where there is a disposition to con- gestion in the head and internal viscera ; when febrile and inflammatory symptoms are present; when gastric, hepatic, or intestinal disorder exists ; and when there is a disposition either to hydro- cephalus or to pulmonary consumption. This is in some respects just; but after depletions, and when the more marked symptoms of these dis- orders are subdued, iodine may, notwithstanding, be exhibited, if its effects be carefully watched, and if the mildest and weakest preparations be selected, and these be combined with anodynes and narcotics. I have observed that a continued course of iodine has sometimes had the effect, particularly during cold weather, of producing pains in the limbs or joints resembling rheuma- tism, which have continued to increase if the medicine was not for a time relinquished. This effect has never appeared during a course of less than six weeks. It has generally soon disap- peared after an aperient operation from sulphur, and one or two warm baths. A change to warm weather has also removed it. 12. If iodine fail of reducing the tumour, and if its pressure occasion urgent symptoms, recourse must be had to surgical aid. For a full exposi- tion of this part of the treatment, I must refer the reader to Mr. Cooper's Surgical. Dictioiwrii, and limit myself to a brief enumeration of this class of measures. The first and most important of these is the insertion of setons in the tumour. This practice was recommended by Dr. Quadui, of Naples; and practised first in tills country by Mr. Copland Hi'tchison, and with success. According, however, to the experience of Mr. James, Mr. Coopeu, and Rlr. Uunninu, tiiis practice is liable to occasion dangerous hasmor- riiage, sloughing of the tumour, and irritation and inflammation of the trachea or larynx. JNIr. Ly- FORD has, however, employed setons, success- fully; whilst Hedenus states, that he has seen tetanus occasioned by their introduction. It has been recommended to cut off the supply of blood to the gland by tying its arteries ; and the advice has been followed by Buzard, Walther, Coates, Brodie, and Earle. The cases thus treated by Blizard, Coatfs, and Brodie, terminated unfa- vourably ; whilst those by Walther and Earie, succeeded. Lastly, he tumour has been alto- gether removed by excii-ion. Dessaui.t first per- formed this operation successfully; Gooch at- tempted it in two cases, but failed; Dupuytren and Kleik also failed; whilst Voget., Theden, and Graeffe, performed it with success; and Hedenus, of Dresden, succeeded in six cases in which he resorted to this operation. BiBLioG. and Refer. — Pliny, \\h. ii. cap. 37. — Celsus, lib. vii. cap. \3.~ De',Hacn, Ratio Medendi, pars vii. p. 285 Rus/i, 3Iedical and Physical Journ. vol. xvi, p. 208. — Fodere, Traitc sur le Goitre et le Cretinisme, 8vo. Paris, An. 8. — Flajani, Collez. d' Osservazioni e Refless. de Chirurg. t. ili. p. 270. Roma, \»,fi(\.—BailUe, niorbid Anaton)', 8vo. p. 87 Larrey, Memoires de Chirurg. Milit. t. i.p. \23.— Bally, in Diction. des Sciences Wed. t. viii. — Wenzel, Ueb. den Cretinismus. Wien, 1802.— IVylic, in Hufeland'i Journ. 1809, 2d st. Febr. p. 118 Maas, Diss, sistcns Gland. Thyroideoideam tarn Sanara tam Morbosam. Wire. 1810, 8vo Pustiglione, Mein. Patholog. Praciica sulla Natura di Gozzo. Flor. 181 1. — Alibeii, Nosologie Naturelle, t.i. p.464.fol. Paris, 1817- — Slrarib, in Naturwissenchaftlicher Aux. der AU- gemeiner Scliweiz. Gesell. &c. voa Fr. Mcisner, 4to. Bern, 1820 Coindet, Decouverte d'un Nouveau Remede contre le Goitre, in Bibl. Univers. Jiiil. 1820, p. 190. ; et Feb. 1821, p. 140. — Can-o, in Ibid. Mai, \»2\. — Brcra, Saggio Clinico suit' lodio, &c. Pad. 1822. — Quadri, in Medico-Chirurgical Society's Transact, vol. x. p. Ifi. — Coates, in Ibid. vol. x. p 312. — A. C. Hutchison, in Ibid, vol. xi. p. 235. — Roots, in Ibid. vol. xii. p. 310. — Kennedy, in Lond. Medical Repos. vol. xvii. p. 177 — Hu7nboldl. in Magcndie, Journ. de Physiol. Exper. t. iv. p. 109 — He- rffnws.Tractat.de Gland. Thyroid. &c.;Lips. 1822.— Cosher, Archives Gener. de Medecine, Juillet, 1823 — Gairdner, On the EflFects of Iodine, &c. 8vo. Lond. 1824. _ Kolley, Medico-Chirurgical Review, vol. vi. p. 229. — Tael, Journ. Complement des Sciences Med. t. xxiii. Nov. 1825.^ Peschier, Biblioth. Univers. Oct. 1824, p. 146 — Manson, Medical Researches on the Effects of Iodine in Broncho- cele, &c. 8vo. 1825 Georgiani, De Praecipuis Thyro- phraxiara Curandi Methodis, Svo. Pavia, 182-5, — Kriigel- stein. Die Kunst d. Krankh. d. Schilddriise n. d. Kropf zu Heilen, Sec. Gotha,8vo. }S2(J.— Earle, in Lond. Med. and Phys. Journ. Sept. 1826. — Lawrence, Lectures by. Medical Gazette, vol. vi. p. 719 J. Johnson, On Change of Air, &c J. Bramley, in Edln. Med. and Surg. Journ. vol. xliv. p. 448 Barker, in Med. Gaz. vol. xv. p. 230. BULIMIA. See Appetite. BULL J2. — Blains. Svn. ^\\iKTa.iva.i, Gr. PhlyctencE, Ampullte, Auct. Lat. Bull\iAt not be neglected. It is entirely by their ai;ency in this stale of disease, that the bowels are to be evacuated, when it is judged prudent to fulfil this intention, which should sel- dom be omitted as far as they are calculated to accomplish it; more es|)ecialiy alter depletions have been practised. The enemata prescribed in the Appendix (F. 130 — 151.), as they may appear suited to particular cases, may be employed. Pain, tormina, nausea, or vomiting, having been relieved, gentle cooling aperients, and in the interval diaphoretic medicines, may be exhibited by the mouth. Warm baths are seldom of much use in this malady: but when they will not interfere with the treatment prescribed, they may be tried, particularly in the more advanced periods. After the disease has been removed, and merely functional disorder remains, the measures already advised may be put in practice. 34. D. The treatment now described is also applicable to the early stages of inflammation affecting the periciLCul tissues. If suppuration takes place, the treatment recommended for Abs- cess must be resorted to ; taking care to support the eneigies of life under it, particularly when the constitution or general liealth is in fault. If we suspect either the existence of iilceralion or of thickeiiing of the coals of the vi'icus (■§ 27.), the assiduous employment of the liniments no- ticed above ; of gentle aperients and deobstruents, particularly the infusion of rhubarb with soda or potash ; of electuaries, with sulphur, bi-tartrate of potash and soda, or the bi-borale of soda; small doses of blue pill or hydr. cum creta, with ipecacuanha, hyos(;yamus, and camphor ; repealed blistering, and subsequently the deob- struent plasters ; the frequent use of large olea- ginous, saponaceous, and demulcent enemata, wiih the treatment recommended in chronic ihjsenlrnj ; are the measures most to be depended upon ; vviih strict attention to diet, which should be chiefly farinaceous, to the state of the digestive organs generally, and to the secretions and excretions. 35. E. The complicatih, reddish brown, or a chocolate-coloured fluid. These cysts are lined by a smooth membrane, from which a fungous tumour sometimes sprouts out. In some instances, portions of the scirrhous mass are con- verted into a iiard substance resembling cartilage, in which bony or calcareous depositions are oc- casionally found. When the scirrhous structure is formed in the substance of a gland, its limits cannot generally be accurately determined, the two structures apparently being inseparably con- nected. In some cases, the scirrhous tumour con- denses the cellular tissue surrounding it, and hence it acquires a somewhat sacculated appear- ance. (Wardhop.) 8. At the commencement of scirrhous disease, the structure of the tissue or organ in which it is seated preserves for some time its aspect and colour, being changed merely in volume and density : sometimes, however, its volume is but little augmented, whilst its density is very much increased. As the disease advances, the proper tissue of the organ becomes more obscure, and verges nearer to that already described. 9. M. Hecht, of Strasbourg, analysed a portion of fully developed scirrhus of the mamma, and found 72 grains composed ot 2 grains of albumen, 20 of gelatine, 20 of fibrine, 10 of a fluid fatty matter, and 20 of water and loss. He likewise analysed, by a similar process, 72 grains of scir- rhous uterus, and found it to consist of 15 grains of gelatine, 10 of fibrine, 10 of oily or fatty matter, and 35 of water and loss. (Lobstein, Anat. Path. t. i. p. 403.) 10. Scirrhous tumours do not always remain in the state now described ; and the period durino- which they thus continue is not determinate. When once they commence, they seldom retro- grade, and the part affected never is restored to its healthy state. It is chiefly in this respect that the early stages of scirrhus differ from sim- ple induration proceeding from chronic inflamma- tion. Scirrhus may remain nearly stationary for several years, occasioning but little constitu- tional disturbance; but generally an important 284 CANCER — Patiioloov o cliange takes place in its structure, and tiie dis- ease afterwiirds makes rapid projiress. 11. II. Carcinomatous, or Cancerous Stage. — Open or ulcerated cancer. After a time, portions of the scirrhous mass begin to soften, and pass into a state of unhealthy suppuration and ulceration, — unliealthy as respects the cha- racters ami progress of lliese processes, and their contaminating influtnee upon the whole frame. Tlie soft or inorganic substance resolves itself into a thin ichorous matter, very different from pus ; and disorganisation commences, generally about the centre of tlie mass, and extending towards that part of it which is nearest either tiie surface of the body or any of the natural openings. When this process commences, it is in that state which has been denominated Carcinoma, or Cancer. When tills ciiange takes place, the diseased mass seldom increases much in bulk, but is destrosed by an ulcerative process. Tlie disease now makes rapid progress, owing to the contamination of the adjoining structures by the morbid uialter secreted by the ulcerating part, a portion of which matter is evidently absorbed, irritating the lymphatic glands, and vitiating tiie whole frame. In consequence of this infection, the powers of life sink, the soft solids become cache\ied, and the progress of the local affection accelerated. At last the patient sinks from the contamination of the circulatmg fluids, and the different textures of the body ; the blood lieing diminished in quan- tity, as well as otherwise altered. 12. When the skin covering a scirrhous tumour ulcerates, a fungus of a cauliflower appeal ance, and iiard gristly structure, sometimes proceeds from the surface of the mass. In some cases, ul- ceration destroys both the fungus and the primary tumour. It has been observed by Sir E. Home, that some cancerous sores have suddenly changed from a painful and malignant character, to a more healthy aspect at some part, and even have begun to cicatrize, 'ihis apparent amendment is never permanent, for, sooiicr or later, the ulcerative pro- cess is renewed, and the disease pursues its usual course. Dr. Parr (Diet. vol. i.) states, that he has seen several cases thus terminate spontaneously ; but the patients were all soon afterwards cut off by internal disease ; probably consisting of the internal developement, or metastasis of the malady, casts of which occurrence arc not infrequent. (See Jimrn. Hehdnm.t. i. p. 323. for a case wherein internal cancer a])peared after the removal of the external disease by compression.) 13. Cancerous tumours generally contaminate the glands in the vicinity, particularly after ulcer- ation has commenced. iiut these glands are seldom primarily affected. Wr. W Annitop states, in his excellent description of this disease, that he has only met with two cases of primary affection of the lympiiatic glands, besides these glands, various other oigans and parts, sometimes far re- iiiov(d from the seat (>( the primary disease, be- coiTie sccondaiily affected. 1 his is most probably occasioned by conliimination of the frame, from absorption of the niorbid matter of the disease. Sometimes the existence of cancer in distant or- gans is not successive or secondary, but seemingly coeval. In this case the cause must be looked for in (he originally morbid slate of the system. Inrleed, this stale always obtains, to a c( rtain ex- tent ; the disease being strictly conslilulional even K — Carcinomatous SxAor. in its origin ; the consecutive contamination, arising from the absorption of morbid matter from ihe primary tumour, merely augmenting the ori- ginal vice, and accelerating its noxious effects. 14. Scirrho-cancer most commonly originates in glands wiiose functions have been interrupted, or that have never pei formed the offices intended for them ; or it affects parts which have been pre- viously diseased, or have received at some period an external injury. Thus it attacks the mammae, the uterus, the ovaria, the testes, the thyroid glands. It also very frequently commences in the tegumental, and the digestive, and urino- genital mucous surfaces ; more particularly in the skin of the face ; in the mucous membrane of the nose, lips, mouth, pharynx, and oesophagus ; in the stomach, especially the pylorus and cardia ; in the intestinal canal, the ilio-cjecal valve, lectum, and anus, and in the urinary bladder. The vis- cera which are seconduriUi affected, are com- monly the lungs, bronchial glands, the liver, the omentum, the mesentery, the serous membranes, the spleen, tlie pancreas, the brain, the medulla of the bones, and the skin. Several of these, particu- larly the liver, pancreas, mesentery, brain, &c. may also be primarily or coevally affected with other parts. Scirrtius affectslhe skin in two forms ; — the one is that of wart, the other that of tubercle — the former being primary, the latter secondary. 15. III. Diagnosis.— It is of great importance to be able to distinguish between this disease and various others, for which it is liable to be niis-. taken. For instance, the simple induration pro- ceeding from chronic inflammation has, in several instances which have come to my knowledge, been mistaken for scirrhus. This mistake not in- frequently occurs in respect of induration of the neck of the uterus. 16. A. In simple induration, the part affected is redder, more injected, retains more of its ori- ginal structure, is less indurated, and less lobu- lated, than scirihus. The parts also surrounding the indurated portion are frec|uenl!y slightly infil- trated with serum. Induration, the result of in- flammatory action, admits of resolution, and entirely disappears, sonietimes in consequence of a natural flux or evacuation, of active exercise, llie return of accustomed discharges, or pregnancy. Thus the menstrual flux sonietimes dissipates inflam.matory induration of the mamma;, or of the neck of the uterus. 17. B. The Jihrous prodvcticn generally ap- pears in the form of a rounded body, implanted, but isolated, in the proper structure of the organ, and adhering to it merely by means of laminated tissue. Upon dividing the structure, it grates under the scalpel ; and it sometimes presents dilated vessels, which are never observed in Scirrhous masses ; moreover, it occasions little or no pain, and never passes into the cancerous state. 18. C. Compared with tnherciilar or lardaceovs ])roductions, sciriho-cani'er offers remarkable dif- ferences : — 1st, 'I his latter is never found isolated in the cellular tissue, or in the parenchyma of oigans, in the form of granulations, or of small lounded tumours, as the tubercular formations are; nor in largely diffused masses, as the lard- aceous substance: 2d, It is never tncloseirnct fiom one another — distinct in c.iu^e-;, origin, the structures they prin- cipally attack, atid in their appearances and pro- perties. 1 have, therefore, adopted the more accurate views of Briiisli pathologists respecting this disease, which 1 consider in relation to lis predisposing and exciiing causes, to the states of the system in which it occurs, to iis IochI rrppear- ances, and constitutional effects, to the results of treatment, and to the ultimate changes produced in the blood, and in the various structures, as essenliiiUt) depending ujion a weakened and other- wise worliid niale of the si/stem f^enevully ; and arising from drjiramtion of the i ital conditions nf the part njf'fcled, whereby its nulriiion, nervous semihililii, and secretinf;; fuiiclioii, heroine speciji- callij changed, and all the Jiuids and solids ulli- mately contaminated. Treatment of. 27. V. Treatment. —• The conclusion now drawn respecting the nature and morbid relations of scirrho-cancer must render very apparent the futility of various measures which have been em- ployed to remove it. Some writers have too ex- clusively viewed the disease as local ; and thus, even in its advanced stages, resorted to most dangerous and painful operations to extirpate an evil, which, instead of being local, proceeds from the morbid state of the system generally, and which all depressing causes (the surgical opera- tion itself being one) rapidly increase, disposing not oidy to its extension in its primary seat, but also to its appearance in new situations and more vitiil organs. The means of cure, therefore, should have especial reference to the state of the con- stitution favouring its developement and progress ; for, when the malady is advanced, local measures can, at the best, only be palliative, and are there- fore subsidiary to judiciously devised means em- ployed internally, and assisted by suitable diet and regimen. 28. Before I proceed to state the indications which should guide the treatment of this disease, and the medicines which seem best calculated to fulfil them, as far as this is possible, 1 will take a brief view of the means which have been recom- mended or tried by preceding writers. The real importance of this subject to the physician will be the more obvious, when he reflects, that cancerous diseases are often — indeed most legitimately on all occasions — within his province, more parti- cularly when they invade, as they frequently do, internal orgirns ; and that the life of the patient may be greatly prolonged, and his sufferings much alleviated, by judicious medical treatment. 29. A, At tlie commencement of the scirrhons stage, various means have been employed, and sometimes with some advantage, according to the showing of those who employed them. Coniiim has, upon the whole, found the greatest number of supporters ; and 1 think that, when it has been combined with the alkaline tonic and stomachic pi'epara- tions, it has been often of considerable benefit. This seems to be nearly the opinion of several writers, and amongst others, of GEs^'ER (Beohacht. b. i. p. 213., iii. p. 242.), Giuard, Hufeland (Journ. der Fruct. Heilk. h. ix. 3 St. p. 86.), Hahnemann (in Ihid. b. ii. p. 473.), and Thile- Nius (Med. vnd Cliir. Bemerk. p. 100.). Elec- tricity and Galvanism have been employed by Brisbane (Select Cases, &;c. p. 36.) and Wal- tiier ( Ueber die Ther. hid. der Gulc. Oper. iji;c. c. 12.) ; the chloride of barium, by Hi'eeland ; antimoniaLs, by Rowley and Dowmann ; aconi- tum, bv GriEDiNO ; drgiialis, hy Mayer (Bich- ter's Chirtir. Biid. b. v. p. 531.) ; laur-el-water, by Tiin.EMus ; mercury, paiticularlv the bichlo- ride, by RiivsCH, Thilenius, and Harris; hy- drochlorale of ammonia, by Justamond; bella- donnrr, by Gataker ; and the niezereon, by Home (Clin. Kiper. and ///.sf. p. 428.), with more or less benefit, chiefly of a temporary kind in those cases which were obviously scirr-hous, and with permanent service in those which were only sup- posed to be of this description. 30. B. In the more Jnllu developed and less dovhtfid stales of the disease, as well as in its earliest stage, a number of mcdrcines have been reconnnended, and for a while have obtained .some credit, which few of them have long retained. The great majority, however, of them have been brought forward ratlier as palliatives, and with the view of keeping the disease in check, than as possessing the power of curing it; yet some have been exhibited with more sanguine expectations, particularly arsenic, coniuni, hyoscyanius, and belladonna. — a. That conium is productive of bene- fit, when judiciously combined with other reme- dies, is manifest, notwithstanding the contradic- tory evidence respecting it. While we find Stokhck {Lib. cle Cicut. Vind. 1761, 8vo.), Fo- THERGiLL (Works, vol. ii. p. 47.), Hamilton, Fhancke (-De Cancro. len. 1778.), Nicolson (Med. Obs. and Enquir. vol. iv. n. 31.), Quaiun (De CiC!if((, cl). 4,5.), Fearon, Bell (On Ulrers, pt. ii. sect. 8.), Gruelmann (De Usu Ciiutic, hfc. Goet. 1785.), Renard (Journ. de Med. t. xxiii, p. 41].), ScH.EFFER, and several other writers, in favour of it, we observe Siebold (Chir. Tugeb, n. 74.), Lange, Hill (Erf. Med. Com- ment, vol. i. p. 140.), Akenside (Trans, of Col. of I'hvs. vol. i. n. 6.), OBEnTEVFFER (Hufeland's Journ. b. ix. st. 3. p. 81.), Schneider (Chirurg. Gcsch. h. iv. n. 19.), and Burns, expressing opi- nions as to either its little efficacy, or its entire want of effect. This discrepancy may be ac- counted for upon the supposition of want of virtue in the preparations p'-escribed ; the extract gene- rally losing the virtues of the plant during the modes of preparing it formerly in use : and I find, upon referring to most of the authors now quoted, and to others not referred to, that the ex- tract and decoction were usually employed by those who found it productive of no benefit ; whilst the powdered leaves, the expressed juice of the plant, or an infusion of it, had been pre- ferred by those who have expressed themselves in favour of it. I have prescribed the inspissated juice and powdered leaves of this plant, in several cases of internal scirrho- cancer, in combination with the alkalies and tonics, and have always found them much more beneficial when associated with it. 31. b. Belladonna was first exhibited by Alberti (De Bellad. taniftium Specif, in Cancro, S^'c. Halae, 1739.), who highly praised it in the occult stage of the disea-e. it was alterw^rds recomniended by Lambergen (Mailer's Disp. Pract. ii. n. 41.), Bellot, Lentin (Beobacht. S)C. n. 2. and 3.), Amoureux (Journ. de Med. t. xiii. p. 47.), Cam- PERDON (Ibid. t. Iv. p. 342. 423—502.), Sul- ZER (in Ibid. t. xxiv. p. 68.), and by Grandvil- liers (Ibid. t. xvi. p. 449.) ; and declared of little use by ZiMMERMANN and De Haen (Rat. Med. pt. ii. p. 37.). I believe, however, that some advantage will be procured from its internal and external use, particularly as a palliative, and when combined with medicines which are calculated to support the energies of life, and improve the secreting and digestive functions. A similar opinion may be offered respectmg sti-amo- Ilium and hyosaiamus. 32. c. There is, perhaps, no medicine which has been so commonly prescribed in this malady as arsenic. It foruis the base of the several secret remedies, internal as well as external, employed by empirics; and has been very generally used by them as an escharotic, sometimes with very injurious effects, from being absorbed largely into the system. There can be no doubt, however, of its beneficial influence, in many cases, when cautiously prescribed, and judiciously combined CANCER — Treatment of, 287 with other medicines ; but chiefly as a most ener- getic tonic and excitant of the capillary vessels, and powerful detergent in the ulcerative stage of the disease. Justamond prescribed it both inter- nally and externally, with opium and various other medicines; Stark (Archiv.f. d. Geburtsh. b. ii. p. 673.), Rush (I'.din. Med. Comment. vol. xi. p. 312.), and Odhelius, state that they have found it cure incipient cancer, when applied in solution to the part; Collenbusch (in Hufe- land's Journ. d. Pract. Arzn. (Sfc, b. iii. p. 103.), (bund it beneficial when employed externally, tonic extracts having bten given internally at the same time: Fischer (in Richter's Chir, Bibliog, b. viii. p. 76.), AIichaelis (in Ibid. h. v. p. 132.), and Reusni.r, prescribed it in the form of the ponder of Guy* (composed of arsenic, sulphur, ranunculus sylvest., 6ic.), with marked benefit; Salmade (Mem, de la Soc. d'Emulat. t. i. p. 152.) cured a case with the ponder of Rousselot, the twenty-fifth part of which, he says, consists of arsenic; Balascon de Tarare gave it with the expressed juice of the solanum, and HoRNUNG with serpentary and soot. This evidence, however, in its favour, is not without powerful Opposition. Fabricius Hildanus (Ce«t. vi. obs. 81.) says, that arsenic was introduced into practice by a monk named Theodoric, in the tenth or eleventh century (having •probably been made acquainted with it in the East), and details cases in which he considered it detiimental. A similar opinion has been entertained of it by Schneider, Thilemus (Med. und Chir. Bemerk. p. 101.), Acrel, Murray (Med. Pr. Bibl. b. iii. p. 485.), Adams, Oberteuffer (Stark's N. Ar- chiv, b. iv. p. 673.), and Delius. IMr. Hill. however, expresses a very favourable opinion as to the effects of this mineral, and states that it will retard the progress of the true scirrhous tumour, in the great majority of eases, and often prevent it from becoming cancer ( Erf. Med. and Surg. Journ. vol. vi. p. 58.). 1 believe that, when this medicine is cautiously employed, both internally and externally, -in conjuncnon with narcotics and alkalies, or with iodine, or otherwise judiciously combined, Mr. Hill's opinion in its favour is not much too highly coloured. 33. rf. The preparations of mercurij are always injurious in this disease, when exhibrted in any other manner than as an alterative, and, externallv, as an astringent and stimulating wash. The bi- chloride in minute doses internally, with the hy- drochlurate of ammonia, or the compound sarsapa- rilla decoction, or with the tinctures of cinchona, yuaiacum, \c., is often of service, at least in re- tarding the progress of its early stage ; and when the disease has advanced to ulceration, the external use ot the bichloride, with the hydrochlorate of am- monia, lime vvater, &c. may occasionally be of some service. Reidlin (Cur. Med. Milieu, n. 408.) states, that the preparations of this mineral are always injurious when productive of salivation, or the accuracy of this opinion, there can be no doubt. Prescribed, however, as now recom- mended, it has received the approbation of Mose- ley, Gooch, Gmelin (Method. Cancrum Sanandi, Tub. 1756.), Hagen, Gataker, Chapi-is, BI'ch- NER (De Med. Mercur. Usu in Caucro. Hal. 1755.), * A secret remedy, recommended bv Richard Guy, in a production, entitled Essmjs on Scirrhous Tumours and Cancers, Svo. Lond. 1759. 288 CANCER — Tkf.atmint of. Champem-e (Sat- le TialUm. dii Cancer. I'.ir. an viii,), und by Sir A. Cooper {Lectures, in Lancet, vol. iii. p. 190.) 34. e. The prejiarations of iron have beea lecom- niendeil by JusTAMONuaiid De Mare ( Tnict. Med. Chirurg. de Caacrn, l<;c. Vien. 8vo. 1767.), who gave them variously combined, particularly with liydrochlorate of ammonia, and in the state of neutral salts. Mr. Carmichael strenuously ad- vises the sub phosphate, combined with a little pure fixed alkali. He prefers this preparation, but occasionally also employs the carbi)nate, the polassio-tartrate of iron, the phosphate and oxyphosphate of the metal. If it occasion cos- tiveness, he combines with it a little aloes; and if it produce lieadach, fever, or full pulse, he leaves it off, and gives four grains of camphor every five hours. He prescribes it as follows; directing exicrnally to ulcerated cancers, the carbonates, phosphates, or arseniate of iron, made into a thin paste witii water; and to occult can- cer a lotion constantly applied, consisting of a strong solution of some one of the sails of this metal. No. 85. li Sub-Fhnsph. Fcrrigr. xxx 9ij.; Potassae vel. Soils Purae gr. iij v.; Extr. Aloes gr. iv. ; Pulv. Glycyrrh. 9j. ; Albuiiiinis Ovi 4. s. ut fiant Pilulee xij. Capiat binas, tertiii vel quarlis horis. Besides these preparations, theyer?'( ammonio-chlo- ridium i5 entitled to notice. It was consiilered the best medicine that could be directed against this disease by Dr. Denman {Observ. on the Cure of Cancer, p. 77.). 35. f. The preparations of lead have also been used, chiefly externally, when the disease has advanced to ulceiation. Gesner (Beobach. b. v. p. 141.) recommends the acetate in the form of liniment with turpentine, and Schoenheyder (.S'oc. Med. Hann. Coll. vol. i. n. 4.), advises the continued application of lotions of this salt in a decoction o( conium. It has also been used in thin sheets constantly pressed upon the scirrhous tumour. Of the various other remedies brought forwards by authors at different periods, and stated by them to have proved serviceable, I may briefly notice the following: — Honsnus {Observ. 1. ix. ob. 3.) prescribed internally, and externally, ml- phur, with spirit of turpentine; Ruland {Cur. Ampir. i, n. 1*2.), the balsamum auliihiiris ; and various other writers, the oleum sulphuris (F. 21.). The sulphurels have al.-o been employed, both internally and externally, either alone, or with narcotics, and fometimes with benefit. Ga- TAKI-.R {Ohser. on the Litem. Use of the Sotanum. Lond. 1757.) used the solantim nigrum; and Paulus yEoiN/i-. (1, iv. c. 25.), Okibasius (Synop. 1. vii. c. 13.), and Careue, the expressed juice of the solanum dulcamara, externally; the la>t-nained author exhibiting it internally at the same time. Opium, as well as other narcotics, is often necessary in order to alleviate the pa- tient's sufl^erings, and with this view has chiefly been employed. 1 believe, however, that, when combined with suitable remedies, it is olherwise productive of benefit. The volatile iim\f.ied al- kalies have been exhibited by Barkkii (A'eic York Med. liepos. vol. iv. n. 4.), AIautinet and 15ar- hktie (Jouru. de Med. t. Ivi. p. 559.); anti- moiiiuU, by Howi.ev and Tiieoen (liemerk. b. ii. p. 08 ); haryles by Chawi'oud {Duncan's Med. Comment, vol. xiv. p. 433.) ; cinchona, by IIom- uuuo, ViEusstNS, and Plenk {Samml. von Beo- liarht. i. n. 6.); the ex|)ressed juice of tne cheli- doniuin and the sulphate of sine, by BEiiCiiEL- MANN ; lime-water by Vogel {De Curat. Cancir, per Aqnam Calcis Vivtt potam, tS'c. Goet. 1769.) ; the orohanche Virginian 1, by Barton and Ben- sell {Philad. Med. Journ.) ; an ointment with the juice of the bardana and acetate of lead, by Pehcv {Hufeland N. Annalen, i. p. 381.); camphor, by several authors : the sedum acre, by BucHoz and Quesnai; t^ie onopordum acanthium, by Guelicke (De Onopordo Carcin. Aver. 6^c. Fr. 1739.), Handel, Juncker, ^d Ross; myrrh, by Nicolas {Hufeland N. Annalen. i. p. 362.) ; fxed airs, by Beddoes, Percival, {Essays, ii. p. 73.), Ingenhousz, and Peyriliie {De Cancro, p. 75,); digitalis, by Richter {Chirurg. Bibl. b. iv. p. 591.); the hydro-sul- phurct of ammonia, by Burns; petroleum, by Rammazzini and Pierce ; the rhododendron chrysanthemum, by Pallas ; and aconitum, sur- saparilla, guaiacum, the beccahunga, the phellan- drium aquuticum, &;c. by various writers. All these have been prescribed both internally and externally, with little or no advantage, or with very temporary benefit only. 36. g. Of the numerous external remedies re- commended at various periods, the preparations of arsenic and quicksilver ; charcoal and carrot poultices; the mineral acids, particularly chlorine, hydro-chloric, and chloric acids ; the chlorureis, and many of the metallic salts; camphor, the bal- sams, and the terebintliinate substances ; ammonia- cum, galbanum, and myrrh ; and the greater pait of the astringent, antiseptic, detergent, and sti- mulating vegetable medicines, have obtained a greater degree of reputation ; and, when some of them are judiciously combined with one another, and with narcotics, they are deserving of notice as discutients in the early stage of the disease, and as palliatives in its ulcerating state. 37. Frictions of the part were advised by Poi - TEAu, and Young entertained sanguine expect- ations of the result of pressure, — a practice which, vei'y recently, has received the support of Reca- MiER, and several French physicians. M. Joi- BERT states, that he has found small local blood- lettings, and the following pills, most serviceable in the different stages of cancer. {Archives Gen. vol. xvi. p. 282.) No. 86. R Saponis Medic. 3 iv. ; Gum. Aramoniiui 3ij. ; Ext. Conii et Ext. Aconiti Panic. 3jss. ; Mas.'aj Piliil. Kufi 3j. M. Coniunde bene simul, et divide in Pilulas gr. V. He directs two of these to be taken night and morning, increasing the dose by an additional one daily, until twelve, fifteen, or even twent} , are taken, morning and night. The rest of tliu treatment consists in applying poultices of the recent conium ; using deobstruent and solvent beverages, a mild diet and regimen, and wearing an i.ssue or seton in the arm or thigh. This plan has likewise been advised by Dr. Lowassy, by wiumi it was first practiced. 38. /(. Sir A. (^ooi-eu expresses himself very strongly against low diet in ihisdi.sease, — a practice which had been much insisted on by Mr. Pearson, Dr. IjAmbk, and Hiifeland {Journal der Pract. /l)Z)(e(7c. b.i. p. 289.). The opinion of Sir Astley is certainly in accordance with accurate observ- ation, and rational induction. This very eminent surgeon slates, that he has seen most benefit derived from Plum.mek's pill given at bed-time. CANCER — Treatment. 289 and stomachic tonics in the day, consisting ciiiefly of the bitter infus^ions, with ammonia, and the carbonates of the alkalies. Some advantage was also derived from a pill, consisting of half a grain of stramonium, with two grains of camphor, given twice or thrice a day. 39. Since the introduction of iodhie into prac- tice, the preparations of it have been tried in the different stages of cancer by several physicians. l"he results of the trials which have been made of this substance are certainly such as ought to war- rant the use of it in the eai Iv states of the disease. The cases recorded by Dr. Wagner (Rev. Med. Juin, 1823), and by Wr. Hill, of (Chester, are much in favour of it. I have been consulted in two cases occurring in females between thirty and forty, for what was considered, by the attending practitioners, scirrhus mammiE, owing to the lan- cinating and remitting pains, and the diseased state of the nipple and axillary glands. They were both put upon a course of iodine (F. 328, 329.) ; with conium, and the solution of potash ; a light nutritious diet, and strict attention to the state of the uterine functions, were also observed. Perfect recovery has taken place in both : but it appears doubtful whether or not they were genuine cases of scirrhus, notwithstanding the signs now al- luded to were present. They had, however, with- stood other means of care for a long time. The treatment, in one of the cases, was chiefly con- ducted by Mr. Faxon, according to the above suggestions. 40. C. Conformably with the opinion stated above (§ 26.). I conceive that the treatment of this disease should be directed to the fulfilment of the following intentions : — 1st, To supjiort the energies of life, by exciting the digestive functions, and the abdondnal secretions and excretions ; 2d, To soothe the morbid sensibility of the part, and promote the absorption of mo: bid depositions in its tissues, by means of anodynes combined with deobstruents and discutients ; and, 3d, To impart vigour to the frame by suitable medicine, diet, and regimen. The remedies which are calcu- lated to fulfil the first indication, may be often conjoined with those intended to accompiisii the second and third ; and both internal and external means may be simultaneously used, with those views. The medicines already enumerated com- prise neaily all that have been found of any ser- vice in this distressing malady. But the advantage to be derived from them will mainly depend upon their combination and exhibition appropriately to the circumstances of individual cases. 41. The preparations of iodine given in very small and frequently repeated doses, with iron — the iodide of iron — or with potass, and conium, or opium, will be found amongst the best remedies that can be used ; inasmuch as, when exhibited in this manner, they are both tonic and deobstruent. They may also be used externally in the form of ointment; but one third of the propoition of iodide of potassium to the ointment usually em- ployed should be prescribed, and friction with it ought to he of much longer continuance than commonly directed. Either stramonium, conium, opium, belladonna, hyoscyamns, or aconitum, may be given in various forms in the intervals between the exhibition of the iodine ; and be combined with tonic infusions or decoctions, with the fixed or volatile alkalies, or with camphor in doses of Vol. I. from two to six grains. They may also be tried in conjunction with the preparations of arsenic, or of iron, or llie chlorates or potash, soda, or lime, and as external applications also, when the disease has gone on to ulceration. In females, scirrho- cancer is generally connected, at its commence- ment, with disorder or the cessation of the men- strual discharge. In such cases, the preparations of iron with ammonia, or the fixed alkalies, and aloes, are sometimes of service. I have observed most advantage in these cases from frequent and full doses of conium, in the form of powder, given with the biborate of soda. 42. Tonic infusions, or decoctions, with liquor animonije acetatis, or with the solution of potash, or the carbonates of the alkalies, and extract of conium, or the tincture of hyoscyamus ; the bi- chloride of mercury in the compound tincture of cinchona, or compound decoction of sarsaparilla ; or small doses of blue pill, or hydrarg. cum creta, with camphor, and either of the narcotic extracts; the preparations of sulphur and the sulphurets; the phosphates of iron, or this metal combined with ammonia, and conium ; the sulphates of quinine and zinc ; and the balsams and terebin- thinates ; may severally be employed. No. 87. R Decocti Cinchona; 3 j. ; Liq. Ammon. Acet. 5ij.; Liq. Amnion, ttl xx. ; Exti- Coiiii gr. vj. ; Tinct. Capsici Annui|n|viij. M.'Fiat Haustus, ter die sumendus. No. 88. I^ Potassii Sulphureti 3 J5S. ; Pulv. Fol. Bella- doniise 9jss.; Saponis Castil. 3 j. ; Gum. Ammoniaci 3 j.; Syrupi Simp. q. s. Simul contunde, et divide massam iu Pilulas Ix. quarum capiat Ires ad qnatuor ter quotidid. No. 89. R Infusi Antiiemidis 3jss.; Liq. Potassce VI X.; I'inct. Hyoscyaini j ss. M. Fiat Haustus, ter die capiendus. No. 90. R Hydrarg. cum Creta pr. j. ; Caraphora rasa; gr. iij.; Extr. Aconiti (vel Belladonnae, vel Stramonii) gr. ss. ad gr. j.; Soda? Carbon, exsic. gr. viij.; Bals. Peruviani q. s. ut fiaiit Pilula iij. mane nocteque sumeu- dae. No. 91. R Acidi Arseniosi gr. vj x.j Opii Puri gr. xij. —XX.; Oxydi Zinci 5ss.; Butyr. Recent. 3j. ; Cer.ne Flavje Liquet". 3 jss.; Longa triturat. misceantur exactiss. et fiat Ungiientum pai ti alfecta; applicaniium. (Harless, De Arstn. Usii in M,d. Norim. 1811.) No. 92. R Extr. Coiiii mac, Balsami Periiv., aa 3 j. : Plumbi Acet. 3j. ; Tinct. Belladonna; 111 xij.; Tinct Opii Corap. (F. 729.) 3 j.; Ungueati Ceiaj 3 j. M. Fiat Unguentum. No 93. R Ferri Ammonio-chloridi 3 jss.; Extr. Conii, 3j.; Pulv. Capsici Annul 5ss.; Extr. Aconiti gr. iv.; CainphoriE rasa; gr. xv. ; Extr. Aloes purif. 3j ; Syrup] Simp. q. s. M. Contuniie bene simul, et diude in Pilulas xlvii'. quarum capiat tres, ter, quaterve quotidie. No. 94. R Herbas BeccabungtE contus. .3ij.; Pulv. Capsici Annui 3 jss. : Aqua; Ferventis Oj. ; Maceraben^ et cola. Deiu adde Liq. colato Solut. .irsenici 5ij. (vel Chlor. Calcis 3 jss.); Extr. Opii Aquos. 3j. U. Fiat Lotio, pro parte affecfa. No. 9.'). R Balsami Canad. 3jss. ; Oxydi Zinci 9 ij. (vel Carb. Potassse exsic. 3 j.) ; Pulv. Folior : Conii 9 ij. ; ■ Pulv. Capsici 9jss. ; Pulv. Tragacantha; Comp. q. s. ut fiat Massa Pilularis, qu.im divide in Pilulas xlviij. Capiat tres, ter die; et augeatur dosis ad quatuor, quaterauo- tidie. ^ 43. D. Athough the malady obviously has » constitutional origin, yet the propriety of extir- pating the affected part, as soon as the true scirrhous cliaractcr becomes manifest, may be conceded. After this is accomplished, the consti- tutional vice may be more successfully combated, and the reappearance of the local disease more probably prevented than at a later period. When, however, the system exhibits any of the symptoms of the cancerous cachexia, whether the adjoinini'- glands be enlarged or not, nothing will be o-ained by an operation ; but some advantage may stiil accrue from judicious and energetic medical treat- ment, particularly from tonics combined wiiii anodynes, alteratives, and deobstrueals. Whilst U 290 CATALEPSY — Pathology. medical measures have often obtained the credit they by no means deserved, from the circumstance of local diseases mistaken for scirrhus having been removed by them ; so I believe that surgical operations have sometimes acquired reputation from the same cause. 44. During the treatment of this malady at- tention must be especially directed to the secre- tions and evacuations. The bowels ougiit to be kept freely open with deobstruent laxatives, com- bined with tonics and vegetable bitters. The diet should be nutritious, and easy of digestion. Pork, in every state, ought to be avoided, as well as other indigestible kinds of meat. Change of air, and of scene, with agreeable amusements, serve essentially in assisting the influence of a judici- ously devised method of cure, and should, there- fore, not be overlooked by the practitioner ; and several of the tonic and deobstruent mineral waters are of use, particularly those of Bath, Tun- bridge, Buxton, Spa, Marienbad, &c. BiBLioG. AND Refer. — Le Dran, Mem. de I'Acad. Roy.deChiriirg. t.vii.p. 223 B.Peyrilke, On Cancerous Diseases, translated from the Latin, witli Notes, &c. Lond. 1777 M. Akenside, On Cancer, in Transac. of Coll. of Physic. Lond. vol. i. p. 45 Johnson, Practical Essay on Cancer. 8vo. Lond. 1810 Himly, in Hu/e/and's Journ. der Prakt. Heilk. 18U9, par. xii. p. 126. — Uotne, Observations on Cancer, &c. Lond. 1805. — Adams, On Worljid Poisons, 2d edit. 1807 Howard, Pract. Obser- vat. on Cancer, 8vo. Lond. 1811 Young, Cases of Can- cer and Cancerous Tendency, vol. ii. Lond. 1816. — Rouzet, Eecherches et Observations sur le C.mcer, 8vo. Paris, 1818 Baylc et Cayol, in Diet, des Sciences Med. t. iii. p. bbh.— Wrnxcl, Ueber die Induration und das Geschwiir an Indurirten Theilen, 8vo. Mainz. 1815. — Bauinann, Ueber den Krebs, &c. 8vo. Leips. 1817. — Hill, in Edin. Med. and Surg. Journ. No. Ixxxvii. p. 282. — If'afdrop, in Introduction to Or. Baillie's Morbid Anatomy, vol. ii. p. 36 — Scarpa, SuUo Scirro e sul Cancro Memorie, 4to. 1822. — Cruveilhier, Essai sur I'Anat. Patholog. t. i. p. 127. — Veljieau, in Revue Medicate, t.'i. p. 217. 1825. — La?nbe, On the Effects of a peculiar Regimen in Cancer- ous Complaints. Lond. 1815.— Carmickael, On the Effects of the Preparations of Iron upon Cancers, &c. 2d ed. 8vo. Dub. 1809 Abernethy, Surgical Works, vol. ii. Lond. 1811 Rodman, On Cancer of the Breast, 8vo, Lond. 1815 C. Bell, On Carcinoma, in Trans, of Med-Chirurg. Society, vol. xii. p. 21.'i. — A. Cooper, Lectures, in Lan- cet, vol. ii. p. 5.59 — Breschet, et Ferriis, in Diet, de Med. t. iv. p. 131. — Ullmann. in Encyclopad. Worterb. der Med. Wissen. b. vi. p. 5.5!> Recamier, Sur le Traite- ment du Cancer, &c. t. i. Paris, 1826 Begin, in Diet, de Med. et Chirurg. Prat. t. iv. p. 42.5. CARCINOiMA. See Cancer. CARDIALGIA. See Indigestion. CARDITIS. See Heart, hijiummation of, &c. catalp:psy axd caialeptic" ecs- tasy, Ci.assif. 2. Class, Nervous Diseases ; 1. Order, Comatose Affections (Cullen). 4. Class, Diseases of the Nervous Func- tion ; 4. Order, Affecting the Sensoiial Powers (Good). 11. Class, III. Ohdeu * (Autlior, see Preface). 1. I. DtscniPTioN. — Catalepsy and Ecstasy, although treated of by some writers as distinct afTeclions, generailv present very nearly tlie same pathological conditions, sis respects the presumed stales of circulation in the brain, of vital energy, and ol nervous influence ; manile-t similar moiiiid relations and conijilicaiions, in their origin and progress; are so far modified in their symptoms as frequently to pass insen>^ibly into each other; and ihereCon; require, accoidmg to such manifest- ations, 11 liealmcnt in all respects the same. I'or these reasons I shall consider thctn, in this article, as varieties of the snuie sj)ecii's of disease ; and, if nothing more be gained by thus connecting them, repetition will be, at least, avoided. i. Catalepsy — Trance (from KaTa\r)^ts, the action of seizing, and that from kuto,- Aap.§diw, I seize). Syn. KaTaA.7ji//i$, Greek. Catalepsia, Cutalepsis, Cutoclius, Prehensio, Coit^elatio, Auct. I. at. Cams Ecstusis, Cams Cdlulepsia, Good. Entonia Catalepsis, Young. Catalepsie, Fr. Die Slarrsucht, Katalepsis, Oer. Catalepia, Ital. Trance. 2. Defin. — A sudden deprivation of sense, intel- ligence, and voluntary motion, the patient retaining the same position, during the paroxysm, in which he was at the moment of attack, or in uliich he may he placed during its continuance ; the pulse and re- spiration being but little affected. 3. This disease is very rare ; so much so, that its existence has been doubted by many writers, who consider it to have been feigned. Its occa- sional occurrence is, however, well ascertained. 1 have seen three cases of it in my own practice, and been consulted by letter respecting a fourth. I recollect, also, an undoubted example of it in an hospital, the practice of which I attended when a student. It presents no precise or undeviating train of symptoms, but varies in many particulars ; the phenomena noticed in the definition being those most uniformly present. This varying cha- racter of the disease, according to the description given of it by authors, is owing to two circum- stances;— 1st, to the modified state which it ac- tually assumes, from the circumstances connected with its origin ; and, 2dly, to certain of its phe- nomena having been more particularly noticed by some authors than by others, who have either mentioned them incidentally, or entirely over- looked them. 4. Symptoms. — This is an intermittent and apyrexial disease, occurring in paroxysms of vari- able duration ; and generally after very irregular intervals. The seizure is occasionally announced by premonitory symptoms, — by headach, mutabi- lity of temper, yavi-ning, tinnitus aurium, vertigo, palpitations, lassitude, pain or slight spasm of the limbs or neck, confusion of mind, &c. ; but it is commonly sudden, — the patient retaining the same expression of the countenance, and posture of the body, as at the moment of attack. The eyes are fixed, are open or shut, the pupils usually dilated, and imperfectly contractile from a strong light ; and, from their unvarying expression, and the unchanged attitude, the body has the appear- ance of a statue. Any position, in which the head, trunk, or limbs are placed, is retained without de- viation ; the passive contractility of both the flexor and extensor muscles being such as to admit of a change as well as retention of the position during the paroxysm. 5. After a very indefinite duration — sometimes of only a few minutes, at others of several or even many hours, but rarely of days — the patient is reslored to consciousness. In a remarkable case, however, detailed by Dr. Burrows, the fit lasted miinydays. Restoration is usually instantaneous, acrompariied with sighing, shuddering, or rigidity of ])aits or the wliole of the body, and followed by pain or confusion in the head, and a sense of fatigue and lassitude. The patient, it is said, has no recollection of what has passed during the fit: and the same ideas, and, iiccording to some, even the same sentences, which had been suspended by the seizure, have l>een pursued, the moment of re- covery. 1 n the cases, however, that occurred in my practice, consciousness continued during the seizure' CATALEPTIC ECSTASY — Pathology. 291 6. The countenance, during the paroxysm, is sometimes little changed ; at other times, it is paler than usual ; but it is more commonly slightly suffused, and the pulsations of the caro- tids more forcible than natural. The respiration is variable, sometimes it is embarrassed ; the tem- perature of the surface is also unequal ; being generally depressed in the extremities, and in- creased in the head, evincing an irregular distri- bution of the circulation. The pulse is occa- sionally very slow ; Sauvagf.s found it only 50 ; but it is more commonly quick and small. The senses are so entirely abolished, that the patient may be pinched without feeling it ; and he cannot hear the loudest noises. The state of the muscles during the attack varies somewhat in different cases. They are often slightly rigid, but not to the extent of preventing the easy change of position of the limbs ; and sometimes the position so perma- nently retained is one which no person in health could so long preserve. M. Geohget states, that the muscles often present a degree of tetanic rigidity; but this is only sometimes the case, particularly when the disease is more nearly allied to Ecstasy. In some cases, it would seem as if a partial state of volition existed, of which the patient either had no consciousness, or a very imperfect consciousness at the time, and, consequently, no recollection of the act subsequently, as in some states of sleep. 7. In the more complete seizures, sense, intel- ligence, voluntary motion, and consciousness, are entirely abolished ; but, in some instances, the abolition is only partial ; the patient being con- scious, but incapable of moving or speaking. This imperfect form of the disease has very generally received the appellation of catochus from nosolo- gists ; and numerous instances of it are on record. A very marked case, and nearly approaching to fully formed catalepsy, is recorded in the Edin- hurg Medical Commentaries, by Dr. Fitzpatrick; and slighter grades of it have been met with as a subordinate symptom of chronic nervous diseases, particularly of the severe and obstinate forms of hysteria. In a case, however, of well-marked cato- chus, in a female, detailed by Dr. Lubbock, no hysterical symptoms existed; and, instead of un- usual susceptibility of the system having been observed, in this and other cases which he h;id met witli, more than common torpor was apparent. M. Pftetin and others, who believe in animal magnetism, conceive that sensation, instead of being lost for the time, is concentrated towards the epigastric region ; and that the intelligence, so far from being altogether abolished, is exalied to a degree to amount almost to prophecy. But these opinions can only be applicable to ecstasy. ii. Cataleptic Ecstasy. — Ecstasis, Ecstasy (from iKra-air;, from £^i'o-tTjw). Svn. Exstuse, Ft. Entziichnng, Bcgeisteriing, Ger. Estasi, Ital. Ecstatic Trance. 8. Defin. Suspension nf consciousness of exter- nal objects, and oj voluntary motion, arising Jtojn, U7id attended tii), n high degree of mental excilemenl and abstracted contemplation, tlie muscles continu- ing more or less rigidly contracted, or only partially relaxed. 9. Under the term ecstasy. Dr. Good has describefl a variety of catalepsy, but little dif- ferent from the usual appearance of that form of seizure, instead of the particular modificaiion of disease to which the name ecstasy has usually been applied. This variety of cataleptic disorder is generally induced by mental excitement and sustained contemplation of some particular sub- ject, most generally of religious topics, and of those exciting the affections and passions. The patient suddenly seems mentally struck, or carried away from all external objects ; either standing or sitting in a most excited and impassioned position, with the eyes fixed and open ; and sometimes uttering either the most enthusiastic and fervid expressions, or the most earnest denunciations and warnings, or the most absurd exclamations, with the feeling or belief of their reality ; and total abstraction from, or unconsciousness of, all sur- rounding objects or persons. 10. This affection is variously modified. In some cases it very nearly approaches to pure catalepsy ; in others, to a sort of maniacal excite- ment. Dr. CniSHOLM r.ecords an instance of this latter state in a young female, in whom it alternated with rnania ; and I was consulted by a practitioner in the country respecting a most marked case oc- curring in a religious young lady, where it was evidently connected with, if not consisting of, an exalted form of hysteria. During the attack, she sung and composed long doggerel strains. ]\Iany of the cases which have lately made so much noise in this metroj)olis, under the idea of inspir- ation with " unknown tongues," evidently belong to this affection ; at least, such of them as have not been feigned. The effects produced by the practisers of animal magnetism, upon nervous persons, sometimes appear allied to this affection. Many of the Italian improvvisatori are possessed of this faculty only whilst they are in a state of ecstatic trance, similar to this disease. And few of them enjoy good health, or consider their faculty otherwise than a morbid one. 11. II. The Terminations or Cataleptic and Ecstatic Seizures are generally either in health, or in disease of the cerebral functions. They may pass into mania, epilepsy, or confirmed in- sanity. Dr. BuRROws's case, already alluded to, was complicated with mania, following excited and ungratified passions, and interruption of the menses. Recovery, however, took place, and the patient afterwards bore children. Dr. Gooch met with a case which supervened on, and was followed by, melancholia. J. Frank treated a case of catalepsy, that terminated in mania, of which the patient at last recovered ; and Beh- rends details the history of a case complicated with mania. Pinel records a ca.se of catalepsy which terminated in apoplexy. Rostan states, that he has observed a case in which ii flamma- tion of the lungs was a.ssociated with it. In many instances, these affections terminate, as they com- mence, in most severe hysteria ; with which a very large proportion of them are more or less intimately allied. In one case, the subject of which has been occa'-ion^illy under my care for years, the disorder still recurs. 12. But little is known of their relation to morbid states of the brain or viscera. Holier, however, informs us, that he found the vessels of the brain and cerebeliijin distended wiih black blood, and slight extravasation in a case wl ich ter- minated fatally. Lieutai'd and Ab Heers make mention of fibiinous concretions for^i ed in the longitudinal sinus, with disease of the lungs and liver. According to the state of the countenance U 2 292 CATALEPSY temperature of the head, and action of the carotid arteries, during the tit, it may be inferred that active congestion, or an e(flax of blood, far beyond what obtains in healtli, takes place to the brain, and is instrumental in the production of the disease. 13. in. Diagnosis. — The practitioner must not overlook the fact of all those affeciions being frequently feigned, particularly by females, even by those in good ciri'umstances, and when there can be no end to serve by the imposture further than to create interest in their behalf. Although cataleptic and ecstatic seizures pass insensibly into each other, and are in their nature obviously very intimately related, yet their more extreme and distinct forms are very different. In the former affection, the patient resembles a statue, is entirely deprived of voluntary motion, and is per- fectly mute : in t!ie latter, the countenance is animated and earnest ; the muscles are more or less rigid ; the patient talks, exclaims, or eve i sings with the utmost arlour; and the character of the whole frame is that of the most; abstracted and intense contemplative excitemeat ; conscious- ness of all other subjects and ideas, except of the particular subject by which the mind is ex- cited, being abolished : but the consciousness is often of a morbid or imaginative kind : the patient conceiving, as in the instances adduced by Tissot, that he has seen wonderful visions, and heard singular revelations. Ecstasii may be confounded with somnambaiism and reverie. The excited, and, as it were, inspired appearance of the patient, in the former affection, is sufficient to distinguish it from the more passive character of the latter, in both of which he resembles a peison half asleep, or sleep-walking. The statue-like appearance and muteness of the cataleptic are alone sufficient to distinguish this disease from these latter affeciions. (See § 4—6.) 14. Catalepsy may also be mistaken for as- phyxia, syncope, apoplexy, and even for death itself. The total suspension, however, of re- spiration and circulation, the deep colour of the lips and countenance, in asphyxia ; the flexi- bility of the limbs, great paleness of the face, and the scarcely perceptible performancij of the re- spiratory and circulating functions, in syncope; and the congestion of the head and face, the stertorous breathing, relaxed and flexible limbs, and the attendant paralysis, in apoplexy ; are suffi- cient of themselves to distinguish them from any of the modifications of the affection now under con- sideration. It is possible, al^o, that a cataleptic patient may be considered as being dead. Theie are many instances on record, wliere persons in a state of trance have narrowly escaped being buried alivi' ; and there is even reason V) suppose that, in countries where burial usually takes place much sooner after dissolution than in this, such a circumstance has actually occurred. JJut this could nevei' have occurred, unless the respiration and pulse had been suppressed, and the counte- nance pale. The stethoscope may now possibly prevent such an occurrence from taking place, by detecting the feeble aciion of he heait, which can never be altogether extinct in catalepsy. The .states of the sphincters, and of the cornea, ;ind the tem- perature of the trunk of the body, will further serve to prevent so distressing a nii^take from ever oo curring, even inde[)cndeiitly of due reservation of '.he body from inhumation, till indubitable proofs —Treatment. of death show themselves. As to discovery of feigned seizures of these affections, the general characters of the case, and the practitioner's ovvn acumen, must be the chief guides. 15. IV. Progmosis. — These affections do not appear to be attended with much danger. The fully formed cataleptic seizure is, however, a seri- ous disease. The cases already adduced in illus- tration of its termination are sufficient to indicate this. Fatal cases are, however, noticed by Homer, DoDONCEus, and the authors just quoted, Aetius, De i.a Tour, Fahr, and Sauvages, state that they have seen it disappear after copious epistaxis, and return of the menses. 16. V. Causes of Cataleptic Seizures. — A. The predisposing causes are, whatever diminishes vital power, and increases the susceptibility of the nervous system, particularly the depressing pas- sions, violent and continued sorrow, great anxiety, unrequited affection, intense and sustained mental applications, religious contemplations, exhaustion from repeated miscarriages or severe confinements, and excessive venereal indulgences and manustu- pration. The hysterical, hypochondriacal, and inelancholic temperaments, are evidently most dis- posed to these attacks. They occur at all ages, from six or seven years till old age ; but they are very rare before puberty ; and are much more frequent in females than in males, 17. B. These affections are most commonly ex- cited by some violent mental impression ; by certain of the above predisposing causes, when acting in- tensely, particularly religious enthusiasm ; great mental application, and the passion of love ; frights, terror, or uncommon dread; by startling noises and frightful sights ; the irritation of worms in the prima via ; suppression of the menses, of eruptions and accustomed discharges; injuries of the head (Stark); concealed inental emotions, and un- gratified passions ; and disturbance of the uterine functions. Renard (^Hujeland's Journ, die Pr. Heilk. June 1815) relates a case which was oc- casioned by disease of the ovaria, Sprengel states, that these seizures are induced by onanism. J. Frank remarks, " nunquam catalepsin in Ju- dseis observavi, ac onaniaj vitium rarius inter cos, quam alias apud gentes inveni." (Prax. Med. Univ. Pr(£cip. v. ii. p. 487.) 1 believe that many cases in females are chiefly exalted or more severe states of hysterical affection ; and more or less connected with disorder of the nerves and circu- lation in the uterus and ovaria, 18. VI. Treatment. — When we consider that evidence of determination, or of active congestion, of blood ill the head, has generally been furnished in these affections, the propriety ol vascular deple- tion will not be disputed. If the signs of general or local plethora be very manifest, and if the disease have any relation to suppression of the menses, cupping between the shoulders, the ap- ])lication of a number of leeches to the nape of the neck and behind the ears, stimulating pedi- luvia, and bleeding from the feet, should be em- ployed. If the temperature of the head, and the action of the carotids be increased, the affasion of cold water on the head, or the use of cold or eva- porating lotions in this ([uaiter, whilst the lower extremities arc plunged in warm water, will be of service. In addition to the.ic, purgatives should be given by the mouth, and rej>eated ; a constant, but moderate action, being thereby exerted upon CATARRH. 293 the bowels; and nnlispasmodic or turpentine enemata s-hoiild be administered from time lo time. (Ste F.130. 135.150. 152.) Tlie aloelic purgatives ( F. 450 — 455. 470. 518) are parti- cularly eligible, when the afl'eclion is connected with irreeukirity of the menstrual evacuation. DiEDiEu advises active hydragogue cathaitics. 19. The above means are equally applicable to the paroxysm, and the interval, or supprtssion of accustomed evacuations, in cases characterised by plethora, or local determination of blood. If resorted to in the fit, they may lie cotijoined with various antispasmodics, as valerian, musk, ether, assafoetida, camphor, ammonia, iScc, and volatile stimuli may be occasionally held to the nostrils, when the face is pale, and signs of determination of blood to the head are wanting. 20. The utmost attention should be directed, ■luring the intervals, to the state of the uterine organs. If signs of congestion or of irritation are detected in this quarter, cupping on the loins, the application of leeches (o the groins and tops of the thighs, and the internal use of the boracie acid, or of the bihorate of soda, combined with refriiie- rants and anodynes, shouKl be resorted to. The frequent association of these complaints with hys- teria indicates the projiriety of having recourse to a nearly similar treatment to that recommended in it, and to the same appropriation of medicinal means. Behrends attaches considerable im- portance to the state of the stomach and prima via in cataleptic seizures. There can be no doubt of the functions of these organs being often impeded or disordered, and of tiie propriety of restoring them to a healthy state. This can be done only by a judicious combination of tonic and aperient, or o( denbstruent medicines. 21. When these affections have arisen, as they not infrequently do, from depressing or exhaust- ing causes, the judicious combination of tonics with gentle aperients and antispasmodics, will be of much service. The shower-bath, salt-water bath- ing, change of air, tonic and deobstruent mineriil waters, regular exercise, early rising, and mental amusement, will be most advantageous in such cases. Several of the causes of the disease are both of an exhausting nature, as respects the con- stitutional energies, and of an exciting kind, in regard of the cerebral organs, particularly some of those which induce the ecstatic form of seizure (§§ 8 — 10.). In these, it will be necessary to dimi- nish the local determination to the brain, which is generally present, by the means indicated above (§ 18.), whdst we soothe the nervous system, and restore the digestive functions and the ener- gies of the frame. To accomplish these ends, we must resort to a combination or alternation of tonics with anodynes, antispasmodics, and ape- rients ( F. 453. 672.), keeping at the same time the head cool, the secretions and evacuations free, the mind amused and disengaged, the feet warm, and the blood as regularly distributed throughout the body as possible. 22. When the disease is complicated with mania, melancholia, or epilepsy, similar means to those already stated may be employed, appro- priately to Ihe state of vascular excitement and vital powers, and to the symptom^ more imme- diately connected with the l)rain and the uterine oigans. In several cases of ihese complications, full and frequent doses of calomel will be of ser- vice, and, under careful supervision, it may be judicious to exhibit, in conjunction with anodyne, nervine, or antispasmodic remedies, the nnUler preparations of mercury, until the mouth is slightly aflected. In all cases where the above means fail of producing the expected effect, and parti- cularly in these complications, issues, or setons, perpetual blisters, or the tartarised antimonial ointment, or moxas, slionld be directed to the nape of the neck, the oc<;i|)ut, or behind the ears, and perseveringly continued. In most instances, whether simple or complicated, after the aflection of the mouth by mercurials or the long-con- tinue'- posing the consecutive diffusive inflammation to appear on the same side with that on which the morbid impression was first made. The primary pustule is usually of very little extent or severity, often heals before the consecutive inflammation takes place, and is evidently the local efl'ect of the virus u|)on the capillaries of the part to which it was applied. 15ut it is quite insuflitiient to account for the rapid and violent constitutional disturbance which follows, and which can only be explained by referring it to the clinnge jiroduced by the niorbid matter in the organic system of nerves pri- marily, and consecutively in the vascular .system, and in the blood itself. 15. The chief and not infrequent illustration of this form of the disease is furnished us in the cases which follow punctures received on open- ing recent subjects. In the course of ten or twelve houi-s from the lime of sustaining the in- jury in the finger, or not until after five or seven CELLULAR TISSUE — Inflammation of — Tkuminations. 301 days, the patient complains of rigors, remarkable debility, and frequency of pulse, with sickness at stomach, retching-s, &c. A pustule appears in tlie part, but not always ; and generally no con- nection can be traced between it, even when it is formed, and the diffusive inHammation which takes place durin:; the progress of tiie constitu- tional affection. In some cases, a few led lines may be traced, or swelling of the surrounding part is observed ; but neither advances any dis- tance, the parts above being pei feci ly sound. In tiie course of the violent fever induced by the in- oculation in the hand, the consecutive inHamm;i- tion usually appears in the axilla, and extends towards the sternum, along the neck, down to the loins or haunch, or even to the thigh of the same side. In some instances, it terminates at the mesial line ; in others, it passes continuously to the other side. It occasionally is translated from one side or part to the other, by a kind of metas- tasis, as in gout or erysipelas. 16. The inflammation of the cellular tissue of the trunk, whether arising from a continuous ex wounds from dis?ecting';recent subjects, and whea preceding the disease of the cellular tissue of the trunk. The fever sometimes commences insidi- ously, but more frequently in a very evident or tumultuous manner. The pulse soon becomes very quick, sharp, broad, soft, or compres- sible. The paiient lies in the supine posture, with depressed shoulders, and without turning to either side. Delirium is common, but it is gene- rally intermittent ; and profound coma is rare. The res|)iration always is quick, laborious, and painful, partly owing to the inflammation of the cellular tissue of the side of the thorax, and its extension to the costal Jpleura. As the disease advances, the peculiar cadaverous foetor emitted by the patient, the yellowish or lurid hue of the surface, the offensive and sjmetimes coloured sweat, wh'ch, in rare instances, proves critical, and the tendency to ulceration in the parts pressed by the weight of the body, show that the blood, the secretions, and the soft solids, are more or less contaminated. Towards a fatal close, the raving delirium is often accompanied with mutterino-^ tension of the disease from the arm, or part ori- i and starting of the tendons ; and alternated with jmally affected, as in certain stales of the disease (§§ 12, 13.), or in the course of the constitutional commotion (§ 14.) excited by the inoculation of a morbid virus, always possesses peculiar cha- racteristics: it is diffuse or extensive, without the smallest tendency to point; being flatly elevated above the sound parts, usually by a raised or defined margin. It is smooth and equal, without central hardness, and with all the characters already noticed (§ 12.). In general, no chords, which can be supposed to be diseased lymphatics, veins, or arteries, can be traced under the surface, and the glands are either very slightly or not at all enlarged. The diffused swelling commonly fur- nishes an obscure sense of fluctuation ; but, fre- quently, when punctures have been made into it, little or no discharge has been procured. 17. The pain of the swollen part is most acute in every instance, whether the swelling be in an extremity, or extend along it to the trunk, or com- mence in the trunk itself; and it is quite inde- pendent of whatever affection of the skin may accompany the malady. In some cases, the in- teguments present not the least redness, although stupor ; the breathing becoming panting, labori- ous, or interrupted. 19. The Terminations of the disease vary with the exciting cause, the state of the patient's constitution, and the part primarily affected. When its arises from mechanical causes, as after venaesection, simple puncture, &c., it may termi- nate with spreading suppiirution, which may or may not be attended by sloughing of the cellular structure : and this result may occur both in cases which end fatally and in those that recover; a partial regeneration of this tissue taking place in some of the latter. In the milder cases, the in- flammatory action changes its character, and shows a tendency to stop ; the disease terminating in phlegmonic suppuration and granulation. If the cellular substance adjoining a serous mem- brane become affected, tliis latter participates, and the inflammation spreads rapidly over it, generally producing an eflPjision of sanguineous serum ; but sometimes, also, adhesion of the opposite surfaces. Occasionally the adjoining periosteum becomes diseased, and even the car- tilages and bones denuded. A. fatal termination the cellular tissue has extensively suppurated, or ; occurs either rapidly from the intensity of the even sphacelated ; but the skin is commonly more j disease, or more slowly from some one of its or less afl^ected, although in a secondary manner, in consequence of the extension of disease from the cellular tissue to it, and generally subse- quently to the manifestation of acute pain. In the advanced stages, the skin has often a reddish or pink-coloured blush, and occasionally a mot- tled or livid hue. In some cases, at a still further advanced period, solitary vesicles form over the diseased cellular tissue, and contain a serous, or sero-sanguineous, or ichorous fluid. The tem- perature of the part is sometimes much below natural. 18. B. The febrile commolion, whether appear- ing consecutively of the dift'ase inflammation, directly produced in the part primarily injured, or previously to the afl'ection of the trunk, is of a typhoid or adynamic type, and is accompanied with the most marked disorder of the nervous system, with anxious collapsed countennnce, and fre- • quency of pulse ; more particularly when excited by the inoculation of a morbid matter, as by sequelae: and usually takes place, in the first instance, in from four to fourteen days ; in the second, not till after two or more weeks, or even longer ; but the common period is from the sixth to the tenth day. 20. Ill, Appearances ON Dissection. — Dr. Duncan has given a very minute and accurate account of the successive changes that take place in the diseased structure. As the malady often attacks progressively various parts, it is some- times found after death, in all its stages, in the same subject. In the part last affected, which is frequently the space between the last ribs and the OS ilium, the cellular substance is merely (edematous, with increased vascularity; the infil- trated fluid being either limpid or tinged with red, and readily flowing from the divided tissue. In a more advanced stage, the efl^used matter is less fluid, often higher coloured, but not yet puri- form. The diseased structure is next found gorged with a white semifluid matter, which greatly aug- 302 CELLULAR TISSUE — Inflammation of— Diagnosis. irients its thickness, separating the panicles of fat at a distance from each other, but does not flow from tlie incision. In a subsequent stage, this matter is opaque, whitish, or reddish, or greenish, but is now so fluid that it flows from the incision. It is still, however, contained in the cells of tiie thsue ; and it is only in the last stage, and after the texture of the part is entirely broken down, that this puriform matter is met with in collec- tions, mixed with portions^ of the sloughy tissue. At this last stage the matter is not circumscribed by any cyst, or defined cavity, but is gradually lost in the adjoining cellular substance, without any line of demarcation. (See art. Abscess, §15.) 21. The cellular tissue itself is usually gray or ash-coloured. It is detached extensively from tlie textures it connects, or adheres to them and the skin in sloughy shreds ; and long sinuous ca- vities are found between the tendons or muscles. The muscular structures adjoining are generally more or less diseased, the inflammation extending to their interfibrous cellular tissue ; which, how- ever, does not appear to be alone affected, the muscular fibres having their colour altered, and b;-ing more easily torn than in health. As respects the hl'jod-vessels, the number of visible red arteries is increased, and the veins are enlarged, and tur- gid with black blood. Mr. J. Hvntkr states that he found, " in all violent inflammations of tlie cellular membiane, whether spontaneous or the consequence of accident, that the coats of the larger veins passing through the inflamed pans became also considerably inflamed ; and that their inner surfaces take on the adhesive, suppurative, and ulcerative inflammations ; for in such inflan.- mations, I have found in many places of tiie veins adhesion, in others matter, and in others ulcer- ation." (Trans, rf Soc.for Improvement of Med, Knowledge, 8vo. Lond. 1793, p. 18.) _ 22. The liimphatic vessels have not been sufli- ciently examined. The axillary glands have, however, been observed somewhat enlarged, and embedded in the diseased cellular tissue. Dr. Duncan states, that, although a tender and swelled axillary gland has been frequently men- tioned as one of the fiist symptoms observed, he has never found them so much changed as at all to support the idea that their afl^ection was the primary cause of the alteration of the sur- rounding parts. The state of thc/asc!> has been very generally overlooked in dissections of fatal cases of this malady, as well, indeed, as that of the blood-vtssels and lymphatics ; but the fascia;, tendinous expansions, sheaths of tendons, &c., are not always unchanged, although they appear not lo have suffered in some instances. The sldu is often severely aflfected, but not essentially or primarily, in the idiopathic form of diflfuse inflairiniation of the cellular texture. 23. J\^ Diagnosis and Complications. — a. Difl'use inflamriialinn is readily rlistinguislievl from phlegmonous inflanimatioii of the cellular tissi e, by the circumscribed hardness c f the latter, Ity the elevation of the lumour, and its pointing and becoming soft in the centre; and especially by the phlogistic character of the attendafit lever, whicli will ;,lj.o indicate the nature of the diease, W'iifcti i)ldet;tnonou9 inflammation is seated be- ne ith lascia!. In the less severe cases of the diffuse dibease, particularly when it is principally seated in those parts to which the exciting cause has been directly applied, and when it has been judiciously treated in the early stages, a disposition to pass into the phlegmonous state, by the forn)- ation of coagulable lymph, and the limitation thereby put to its extension, are very generally observed. Indeed, this change of character con- stitutes the favourable termination of the disease; although it may also occur as a complication in unfavourable or even fatal cases, especially when veins or fasciae are also affected. 24. I). Diff'use inflammation of the cellular tissue is often consequent upon erysipelas, or complicated with it, particularly the erijstpelas phlegmonodes ; the difference between them con- sisting in the circumstance of this tissue being primarily and mainly aflPected in the former ; and consecutively of the inflammation of the skin, in the latter. 25. c. hijiamed veins may be distinguished from this disease, when they can be felt stretching like chords in the direction of the swelling, and when the pain and tenderness on pressure are chiefly limited to the same line. There is usually, also, little or no affection of the skin, even secondarily, and the disea.se is generally more confined to a limb ; fulness of the pectoral, cervical, and late- ral muscles and surface being commonly wanting. (See Veins — Infiammation of.) When the tumefaction is very great, it is extremely difficult to determine respecting the affection or non-affec- tion of the veins : the consecutive inflammation of these vessels, however, and its complication with this disease is very common, as IMr. Hunteh has so accurately stated, and more recent researches have confirmed. 26. d. The diagnosis between this malady and inflamed liimphatics is also extremely diffi- cult, owing chiefly to the same cause, namely, to the oedeina and congestion of the surrounding and distant cellular tissue consequent upon the obstiuetion of these vessels in the inflamed state. The existence of superficial red streaks, not con- nected with veins, running along an extremity from the part where the exciting cause is sup- po;jed to have been applied, and swelling of the lymphatic glands to which they lead, are the only proofs we usually possess of the lymphatics being diseased ; and the absence of their appear- ance is the chief evidence of their being un- affected. But, as in cases of inflamed veins, difl^use inflammation of the cellular substance very generally follows inflaiimiation of the absorbents, as satisfactorily shown by AiiiLUNExiiy, .James, Duncan, and BiiFsciiEr. The difficulty of dia- gnosis, however, in a great jtroportion of cases, excepting at their commencement, must be evi- denily owing to the very sufficient reason of their co-existence. 27. e. The same circumstance also explains the difficuliy sometimes found of distinguishing the disease from iujiani motion of the I ai^cia ; for in the majority of irisiances, the affection com- men(;es in llie relluhir tissue, and extends to the fascia, this latter structure being very rarely in- flamed pii(!!arily, unless after it has experienced some external injury. Even when the fascia is ))iimarily inflameil, it will not l)e possible, on some occasions, to form an accurate diagnosis ; as dis- ease commonly extends thence to the cellular tissue ' on each side of it. When the fascia is affected. CELLULAR TISSUE — Inflammation of — Pathological Inferences. 303 either primarily or consecutively, contraction of the limb is generally occasioned : but tliis is in- sufficient evidence of inflammation of the fascia, as inflammation anil distension of the ])arts en- closed by it will produce this effect. Wlien the disease commences in the cellular tissue, and extends to that portion enclosed by fascia, or to this structure itself, the skin is often unaltered even in colour. In a most severe case, attended by Rlr. Parker and myself, the whole leg and thigh, to far above the hip, were affected, and the limb contracted, and yet the skin was na- tural. The inflammation may, however, origin- ate in the skin, extend to the subjiicent cellular tissue, thence to the fascia, and, ultimately, to the cellular tissue beneath it ; forming an im- portant variety of erysipelas, well described by ]\Ir. Copland IIdtchison, and constituting the triple complication of diffuse inflammation of the cellular substance with that of the skin on the one side, and with that of the fascia on the other, the first being most extensively and destructively diseased. The local and constitutional suffering in such cases chiefly arise from the pressure made by the fascia upon the inflamed and tumid cellular tissue underneath it. 28. y. Whilst it is important to distinguish be- tween injxiry or injiammation of a nerve, and this malady, it must not be overlooked that the one is often associated with the other; priority of afiiec- tion in respect of either being the chief object of diagnosis. When, after a puncture or other local cause, very acute pain is complained of, particu- larly in the situation and the course of a nerve, with severe or obstinate symptoms of great nervous irritation, convulsions, &c. accompanying it, we may conclude that the disorder has originated in a nerve ; and, if to those symptoms are added the diffuse, 'boggy swelling, &c. already described (§ 12.), we may likewise infer that diffuse inflam- mation has subsequently attacked the cellular tissue. 29. 0-. I have met with some instances of dif- fuse inflammation of the cellular tissue as a com- plication and termination of several severe or fatal states of diseai^e in the puerperal state, both with and without affection of the skin ; but only in the wards of a lying-in hospital. I'hey have appeared in two forms : 1st, In the advanced progress of asthenic inflammation of tiie uterus, attended with an excoriating and foetid discharge, which has first irritated the skin about the nates, — the cellular tissue underneath becoming dif- fusely inflamed to a >jreat extent, and de- stroyed ; and 2d, After cases of inflammation of the uierine veins, evidently in consequence of the vitiation of the circulating fluid. Ir. Otto, Dr, Duncan, and Dr. Craigie, refer phlegmasia dolens to dtfl^use inflammation of the cellular substance ; but, I think, on insufficient evidence. If this tis-ue be really inflamed in that disease, other structuies participate; and it certainly is not the part first aftected. In the cases which I have seen examined after death, — only three in all, — the nerves and veins were the parts to which the symptoms of disorder were first re- ferred ; the veins being obstructed in all the cases. (See Phlegmasia Dolens.) 30. /(. The cellular tissue of the side of the neck and throat is sometimes dift'u-ely inflamed, apparently from an extension of disease, in an- gina maligna, and worst form of scarlet fever, the patient sinking from it rapidly. I have, however, met with one case of this description, where re- covery ultimately took place. This disease also rarely occurs near the anus, or about the buttock and peiinacum, in the course of fevers, dysenteiy, &c. But it is more disposed, on these occasions, to limit itself, and to terminate in suppurating ab- scesses. When it occurs in ased persons, from the escape of urine into this tissue, it generally extends rapidly and terminates fatally ; and a nearly similar re-ult follows its appearance after important surgical operations, as after lithotomy, amputations, and the ligatures of veins and arte- ries for aneurismal dilatations of them. 31. V. Pathological Inferences. — a. Con- formably with recently accumulated facts con- nected with diffusive inflammation of the cellular tissue, it may be concluded that it presents various morbid associations and grades of intensity, as well as distinct rel.itions to the attendant constitutional disturbance, according to the diversified causes which occasion it : — 1st, That depressed vital power, or a previously disordered state of the chylopoietic viscera, or general cachexy, is often requisite to its occurrence: — 2d, That abra- sions, the irritation of acrid secretions or decom- posed animal or vegetable matter, simple punc- tures, injuries received during the dissection of subjects in a slate of incipient decay, and the contact of morbid fluids, most commonly produce the disease primarily in the part in which the injury is sustained, the mischief spreading con- tinuously from thence ; although occasionally appearing afierwaids in other parts, without any continuous connection, when the circulation has become contaminated by the primary affection : 3d, That, when originating and spreading as now stated, sometimes the skin, at other times tlie veins, occasionally the lymphatics, on some occa- sions the tlieca or fasciae, and more rarely the voluntary nerves, or any two or more of these, participate more or less in the disease : 4lh, There appear to be other causes, .which, acting in the manner of specific poisons, produce comparatively but little ettect on the part to winch they are directly appHed ; but which aftect the system universally, chiefly by depressing and otherwise changing the orga.-ic, nervous, and circulating functions, the alteration of the cellular tissue appearing subsequently : 5th, I'hat the local affection in this form of disease, which may be denominated consecutive diffusive inflamma- tion of the cellular tissue, is often of very small extent compared with the severity of the consti- tutional disturbance; and, very frequently, ap- pearances of contaminaticm of the frame present themselves before tiie cellular tissue is affected, and even then the affection may be trifling, or even not recognisable (see Poisons — Animal): 6th, Ihat the malady originating in the inocu- lation of a poison or virus, paiticularly during the examination of recently deail bodies, cannot be ascribed to inflammation of veins, or of lymph- atics, or of nerves, or of fasciae, or even of the cellular tissue itself; and that, all hough this last mo>t fiequently exhibits morbid appearances, yet are these appearances obviously contingent upon general disease of the frame, involving in a spe- cial manner its various vital manifestations. (See ^ Author, in Land. Med, Repos. vol. xx. p. 24. 1823.) 304 CELLULAR TISSUE — Inflammation of — Treatment. 32. b. As respects the association of the local tnid constitutional affection, all the cases of this disease may be divided into two classes : — 1st, Those in which tiie constitutional disturl)- ance is mainly owinjj to the primary local lesion, or its extension, whetlierit be inflammation of the cellular tissue alone, or of this ti-sue associated with inflammation either of veins, lymphatics, thecae, aponeuroses, or of the skin ; the relation subsisting between the intensity of the primary local aflfeciion, and the constitutional disorder, being more or less apparent and co-ordinate (§ 12, 13.): 2d, Those in wliich the local lesion is obviously the least important change that has been induced, either directly by the exciting cause, or consecutively by the constitutional affection ; and, even when it becomes the most serious, is manifestly the result of' the constitu- tional artection (^ 14.), and dispropoitioned to it. Tiius the local and the geneial symjitoms are presented to us in a different order in these two forms of the disease. In the first, also, the febrile action is more inflammatory than in the second, but still partaking of the irritative character, as has been very justly insisted upon by iMr. Tha- VERS. In the second, it is more asthenic ; the nervous system is much more disordered ; the anxiety, distress, and mental and physical depres- sion, are greater than in tiie first ; and all the organic functions more gravely affected ; the blood, the secretions, and soft solids, becoming at last very evidently altered.* (See Blood, $ 139. et se(/.) 33. VI. Pkognosis. — The danger of this dis- ease is much less when it is accompanied with inflammatory, than with adynamic or highly irri- tative fever, and morbidly excited sensibility. In general, the rapid extension of the disease from the arm to tiie trunk ; great tumefaction of the region of the pectoral muscles ; the first appear- ance of the inflammation in this situation, or in any part of the trunk, from causes which first occasioned serious onstitutional disturbance ; re- markable frequency of pulse following rigors, with anxious collapsed countenance, ferrety eyes, delirium, difficult respiration, depression of mind, the accession of fresh rigors, extreme debility, and stupor ; are all indications of great danger. The nature of the cause, also, should influence the prognosis. When it proceeds from the liga- ture of a vein, venaesection, and particularly from wounds in dissecting recent subjects, the danger is great. There is, however, less risk when the disease arises in the part to which the cause has been applied, and when the skin becomes much affected with a disposition of the inflammation to * It may he statcJ at this place, tliat tlie disease wliicli has been obierved to follow inoculation of an animal poison during the examination of recent subjects is ob- viously distinct from dilFiise indammatiou of tlie cellular tissue, although this local afTection, or some modification of it, often takes place in the advanced stage of that dis- ease, which has accordingly been referred to in this article as one of the chief causes of the lesion now under consideration. The subject is, however, considered more fully in the article on Poisons. In justice lo mys If, I should state, that I published, in the Lcndnu Mrd/cal Jic- positdry for July, 1823, p. 24—27., soim- reiuirks on the nature of the malady infected iiy inoculation from recent suhji.'cts, and the operation of animal poisons on the eco- nomy ; and I request the favour of the reader who is interested In these important subj'Cts to reler to these remarks, and to the conclusions to which Mr. Travers has come. 111 his work on Con»titutiouul Irritation, p. 413. Lond. 1826. limit itself, and form healthy pus, than when it appears consecutively of a pustule merely in the part inoculated, and of fever with extreme de- pression. 33. VII. Treat.ment. — A. Prophylaxis, Pre- cautions are absolutely requisite when punctures are received in post mortem examinations, or when the cuticle about the nails and hands of the examiner is abraded. Some constitu- tions are more liable to be inoculated in this way than others, particularly persons who are out of health at the time, or whose vital ener- gies are depressed. Wearing gloves during a morbid dissection may be of use in such circum- stances. Dr. Duncan suggests the anointing of the hands with camphorated oil, or with simple axunge, befoie handling the viscera. Abrasions about the fingers should be protected by adhesive plaster. If, notwithstanding, punctures are re- ceived, or if an abraded or punctured part come in contact with any of the fluids or soft solids of a recently dead body, with animal or vegetable matter in a state of decomposition, with acrid or morbid secretions, suction or perfect ablution of the part ought instantly to be performed ; a pledget of lint, wet with either a strong solution, or the oil, of camphor (F. 449.), or with turpen- tine, applied to it, and the application covered so as to prevent its quick evaporation. On the several occasions of the employment of these means, in the persons both of myself and of my medical friends, no disturbance has accrued from these accidents. Two partial exceptions, how- ever, have occurred, but in such a way as to confirm the propriety of this practice, and illus- trate the nalure of one form of the disease. The punctures, in these two cases, were received when examining the bodies of females who had, but a few hours previously, died of malignant puerperal fever; and the application was not resorted to until after leaving the apartment where the in- spection was made. In one of those cases, — that of a pupil, — camphor was used ; in the other, that of my friend, Mr. Churchill, — ammonia was einployed, Boih these gentlemen experienced, within twenty four hours afterwards, C(msiderable general disturbance, with sickness at the stomach, and nervous depreS'sion and debility. All disorder, however, disappeared in a day or two alter the exhibition of warm diaphoretics and stimulants ; but in neither case was the least irritation observed in the part punctured. The morbid impres.sion was evidently made upon the orgiinic nervous system, as evinced by disorder of the functions more immediately dependent on it; but was not so intense, relatively to the state of predisposition, as to occasion further disease. As to the use of ligatures, ike, I must refer tiic reader to what I have stated respecting them in the article on Aiiiniol Poisons. 35. H. Curatire treatment. — a. It will be evi- dent, from the history of diffusive inflammation of the cellular tissue, that /oa;/ meaos are chiefly applicable to certain of its states and complica- tions. When the primary local afl^ection is at- tended by much pain, both cold and warm applications have been recommended by different writers. The choice, however, between them, may be determined by the sensations of the patient: but wiirm fomentations, unremittingly employed, appear to me the safest, particularly when inflam. CELLULAR TISSUE — Ik mation is externally apparent. When the local affection is limited chiefly to the part to which the cause was applied, or its vicinity, the detrac- tion of blood from it by leeches or scuiijicatio'us, and incisiiiiis through the integuments, ought not to be neglected. The latter of these two modes of local evacuation, as first recoinnienJed by I\lr. Copland Hutchison, is evidently the most, bene- ficial, not merely by procuring a more decided and rapid discharge, but also by giving an exter- nal outlet to the matter wiiich othenvi^e would infiltrate the cellular tissue, and extend the mis- chief. Even in ca-es of great vital depression, and when the cellular tissue is consecutively dis- eased, incisions should not be neglected j they being compatible equally with au energetic, tonic, or stimulating treatment, as with its opposite : and they are not the less necessary in the early stages than at later periods, and when fluid is diffused through the cellular structure. ^Vhen the part affected is deeply seated, they should be deep and large, so as (ully to reach it ; their number being proportionately diminished. Eut the great object is to make a free passage for whatever fluid matter may have formed, or that will form sub- sequently. This practice has received the appro- bation of Dr. Duncan, and the best recent writers on this disease ; and its propriety has satisractordy been shown in those cases which have fallen under my own observation. 34. A. The generul means of cure are usually directed with the intention of subduing the local affection, and more especially the state of high nervous sensibility and vascular irritability which exists, whether this state be consequent upon the ]>rimary lesion produced by the exciting cause, or whether it be the immediate effect of that cause, and the antecedent of any affection of the cellular tissue, as in cases of inoculation by mor- bid matters or animal poisons. But, although this intention is generally kept in view, very different, and even opposite, measures have been recommended for fulfilling it. It is eviilent that the same measures are not suitable to all states and periods of the di^-ease; and possibly to this cause may be imputed the great diversity of means which have been advised, and the partial success attributed to very opposite methods. j\Iuch also is owing, more generally than has been admitted, to the constitutional powers of the patient. A number of practitioners and writers advocate general blood-letting, and trust chiefly to it for the fulfilment of the above in- tentions, without advening to the fact, that the morbid states forming the essential characters of the disease are, in their severest and most deadly forms, independent of sthenic action, and cannot be either limited or subdued by venaeseetion, although it may be required to a moderate extent; particularly when the local affection arises pri- marily and directly from the exciting cause, im- plicates any of the parts which I have noticed as being involved in its complicated forms, and is chiefly antecedent of the grave constitutional dis- turbance characterising the advanced stages of disease. But even in such cases, the depletion should be practised early, and confined chiefly to young, plethoric, or robust persons ; the local evacuation consequent upon free incisions being sufficient in most cases. In other respects, the treatment in this form of the disease may be Vol. 1. FtAMMATION OF TREATMENT. 305 similar to that recommended in inflammation of the veins; for the principle acted upon by Mr. John Hunter in respect of that malady, and which is founded on accurate observation, is equally applicable to this — namely, to imparl energy to the system, so as to enable the vessels to form coagulable lymph, by which the exten- sion of the morbid action may be limited, and a diffusive or spreading inflammation may be con- verted into the phlegmonous state. This practice is still more imperatively required in the other form of the disease, or that in which the aflisction of the cellular tissue is consecutive of a constitu- tional disturbance, excited by a morbid virus or animal poison. 35. The frequent inefficacy of depletions and the antiphlogistic treatment, and even their injurious efl^ects as shown by the rapid sinking consequent upon them, are fully demonstrated by the history, given by Dr. Butter, of the disease which occurred in Plymouth Dock, and by the cases after wounds in dissection recorded by va- rious writers. The instances of recovery after this practice cannot be brought as evidence of its efficacy ; inasmuch as the srnallness of their number ; the tonic treatment, which, in several of them, followed vascular depletions ; and constiiu- tional energy ; may be adduced to disprove it. After studying the cases which have been pub- lished by Dr. Duncan, Dr. Colles, Mr. Tra- VERS, Dr. Dease, Dr. Butter, &c., and re- fleeting on my own limited experience, I would strenuously recommend the following measures, in addition to those already advistd ; — As to the question of blood-letting, that is already disposed of; but I may further add respecting it, that, however great the severity of the pain, or the sensorial excitement; or however frequent, open, sharp, or bounding the pulse; these symptoms should be arguments against, rather than in favour of venaeseetion. But if the pulse be not remarkably frequent, or if it be firm and con- stricted, then this operation ought to be per- formed. Yet I should expect little or no advan- tage from this practice, in those cases of the disease which proceed from the inoculation of putrid or morbid animal matters or poisons, whatever the character of the pulse may be. It is, however, seldom such as can warrant depletion in these cases ; being generally of the former description, and rarely of the latter. The object which we should propose to accomplish, next to that already stated, is to rouse and support the energies of life, and thus to oppose to the exten- sion of the disease an augmented vital resistance. 'I'his can be done only by a stimulating and tonic treatment, and by the expulsion from the frame of such impurities and morbid matters as may tend to impede the natural functions, and depress their energies. The means which we should employ with these views, if judiciously selected, will be more efficacious than any other for the fulfilment of the intention proposed above (§ 34.). The agents which I have found most successful in attaining them, are large doses of camphor, with opium, sometimes also with calomel, and the occasional exhibition of spiiits of turpentine, either alone or with castor oil, and of one of the enemata(F. 148, 149.) contained in the Appendix. The plan I have followed in several cases of this disease, mostly of a more or less complicated 306 CELLULAR TISSUE— Induration or. nature, which I have treated, has been to give the following bolus, or the pills first prescribed ; and a few hours afterwards the draught, which, jn three or four hours, should be followed by an enema (F. 151.): No. 104. R Caraphoraj rasae gr. x — xv. ; Hydrarg, Chloridigr. X xx.; OpiiPurigr.jss.-ij- ; Pulv. Capsici gr. iv. ; Conserv. Rosar. q. s. ut tiat Bolus, statim sumen- dus, et horas post tres quatuor repetendiis. No. Ui5. R Camphora; rasa; gr. vij.— xij.; Ammon. Sesqui-carbon. gr. xv. ; Hydrarg. Chloridi gr. xx.; Pulv. Capsici Annui gr. viij. ; Opii Puri gr. iij. ; Mucilag. Aca- ciae q. s. ut fiant Pilulae xij., quarum capiat duas omni hora vel bihorio. No. lOG. R Olei Terebinthina; 3 ss.— 3j. (vel etiam Olei Ricini ? ss.) ; Olei Cajuputi nivj.; Lactis ReceBtis 3ij. >'iat Haustus. 36. If a free evacuation of the bowels be pro- cured, the bolus and draught should not be repeated more than once ; if the evacuation be scanty, they may be given a third time, having prolonged the period between the second and third doses; in the intervals between which, as well as subsequently, the following pills and draughts may be taken : — No. 107. R Camphorse rasffi gr, iij — v.; Ammon. Ses- qui-carbon. gr.iv. ; Pulv. Capsici gr.j.; Mucilag. Acacise q. s. M. Fiant Pilulae ij., secunda, tertia, vel quarta qiiaque hora sumendae, cum Haustus sequente. No. 108. R Mist. Camphorfe 3j.; Liq. Ammon. Acet. 3 jss. ; Spirit. iEther. Sulphuric! Comp. 3 j. ; Tinct. Cap- sici Annui nix. ; Syrupi Aurantii 3 ss. M. Fiat Haustus, nften extending to the trunk, the parts being cold. Comment, vol. ii. p. 430. 8vo. ed. 1775 ; and Trans, of Soc. for Improvement of Med. Knowledge. Lond. 1793 Wilson and Wells, Ibid. vol. iii. pp. 3(i0. 3G7.— C. Smyth, Med. Communications, &c. vol. ii. p. I'JO. Lond. 1790. — Ciillcs, On Wounds received in Dissection, Dublin Hosp. Reports, vol. iii. p. 200. ; et Ibid. vol. iv. p. 240. — Iiease,\x\ Edin. Med. and Surg. Journ. July, 1826. — Wise- man, in Ibid. July, 1825 ZJwncara, Trans, of Med. and Chirurg. Soc.of Edin. vol. i. p. 470. — Herisse, in Journ. d* Med.&c.t. xii.p 417. Paris, 1806.— //o?hc, Philos. Trans for 1810, p. 7-5 James, On the Nature and Treatment o Inflam. Sec. 8vo. Lond. 1821 A. C. Hutchison, Trans, o Med. and Chirurg. Soc. vol. v. p. 280 Trovers, On Con stitutional Irritation, 2d ed. 8vo. Lond. 1827; in Lond. Med. and Phys. Journ. Feb. 1823, p. ^^(\ — Barlow, in Ibid. Aug. 1823, p. Ml. — Rust's. Magazin fur die Ge- sammte Heilk. b. xiv. p. 100. — Wanshorough, in Lond. Med. Repos. May, 1823, p. Zh^.— Author, Ibid. vol. xx. p. 24. — Shaw, in Med. and Phys. Journ. Ap. 1825, and Feb. 1827. — Nelsoti, in Ibid. Aug. 1823. — Thomson, in Ibid. Ap. \H2!i. — Forbes, in Ibid. July, \m6. — Earle, in Ibid. Jan. 1827. — Butter, On Irritative Fever, &c. 8vo. 1825, — Craigie, Gen. and Path. Anatomy, 8vo. p. 34. Cellular Tissue — Induration of. Syn. QHdematie concrete, Billard. Scl^reme, Chaussier. Squirrho-Sarque. Beaumes. Skin-bound. Classif. III. Class, I. Order (yJwt/ior). Df.fin. a wax-like consistence of the skin and sub-cutaneous cellular tissue, commencing in the hands, face, and loiver extremities — the parts most remote from the centre of the circulation ; 1. cum Pil. supra pra?scriptis capiendus ; vel No. 109. R Infusi Cinchona Sj-!; Liq- Ammon. Acet. 3 ij.; Spirit. Ammon. Arom. 3 ss. ; Tinct. Capsici HI xij.; Olei Cajuputi 111 vj. M. Fiat Haustus, ut supra sumen- dus. 37. In the slighter cases, less active means will be found sufficient ; but when the disease assumes a serious form, and particularly if the constitutional symptoms manifest themselves be- fore the affection of tlie cellular tissue has com- menced or made any sensible progress, the above or similarly active remedies must be energetically prescribed. 38, During the course of the more adynamic states of the malady, after alvine evacuations have been procured, I have seen the best effects from the liberal use of wine, and large doses of bark with the aromatic spices. If the tongue and mouth be parched, the pills or bolus, and the turpentine draught, prescribed above, should pre- cede the exhibition of the wine, bark, or sulphate of quinine. The irritability of the stomach and delirium, often accompanying the advanced stage of the worst states of the disease, being more readily allayed by powerful stimuli, as camphor, capsicum, ammonia, ether, spirits of turpentine, cajuput and other essential oils, cinchona, and serpentaria, with the carbonates of the alkalies, sulphate of quinine, wine, brisk bottled ale and stout, very small doses of opium, brandy, &c., than by medicines of any other description, it will be necessary to administer these, in forms of com- bination suited to the circumstances of the case ; chiefly with the view of rousing and supporting the energies of life, changing the state of morbid action, and thereby preventing the extension of the local mi.schicf, and the tendency to contamin- ation of the fluids and solids of the frame. The regimen during the treatment should be in ac- cordance with these intentions, and the patient should be allowed what he may crave for; as de- sire in such cases for articles of food, or for par- ticular beverages, is the instinctive expression of the wants of the economy. Rini.ior.. AM) lirrER.— Morand, Hist, dp I'Acadi'mie Roy. dc8 Scienc»s,Au. 17GG f. Hunter, Med. and Philos. often pale, yellowish, or rose-coloured , frequently mottled, or livid, with weak pulse and respiration, terminating in congestion of the lungs and asphyry. 2. This affection was first described, in 1718, by J. A. UzEMBEzius, physician to the hospital at Ulm, and afterwards more fully investigated by Doublet, Andry, Auvity, Hulme, Denman, and Underwood, as well as by several contem- porary writers. It is very prevalent and fatal in some of the lying-in and foundling hospitals on the Continent, but is comparatively rare in this country, especially during recent times. Its na- ture and seat have been much discussed by foreign medical writers ; and even at present, various points connected with its pathology are not fully established. It is, however, evident that the dis- ease assumes various forms, and exhibits different morbid relations, which may be referred to the two following varieties. Var. i. (Edematous Hardening of the Cellular Tissue ; Sclerime ccdemateux, Chaussier and Duces. 3. In this form of the disea.se, the sub-cuta- neous cellular tissue is infiltrated with a yellowish coagulable albuminous serum ; the limbs of the infant are more or less tumefied as well as hard, are somewhat rigid, and the skin assumes a vio- let tint, owing to the pulmonary congestion ac- companying it ; with weak oppressed respiration, and feeble irregular pulse. In some cases, it commences with simple oedema, particularly when it arises from exposure to cold. If the cold have acted upon the greater part or whole of the surface of the body, the affection is sometimes more or less universal, but u.sually most remark- able in the limbs. It rarely attacks the abdomen, chest, and neck. The parts diseased are cold, tumid, discoloured, insensible, hard, and receiving and preserving the impression of the finger when very firmly applied. During the progress of the affection, the cry becomes very weak and peculiar ; dyspnoea increases ; the thorax is dull on per- cussion ; and the impulse of tiie heart and the respiratory murmur are found weak on ausculta- CELLULAR TISSUE — tion. Death often follows in from four to eight days, without any convulsion, but generally pre- ceded by a lethargic somnolency ; and spasmodic attacks resembling slight trismus, and opistliotonos sometimes occur in the advanced stage. The in- durated parts occasionally assume an erysipelatous appearance, and, in rare instances, pass into sphace- lation. In favourable cases, or after an early and judicious treatment, tiie affection subsides; the hardness, and afterwards the oedema, disappearing in the course of two or three weeks. I\I. Gardien states, that he observed suppuration of tiie affected part to occur in one case only. Vur. ii. Imiurtition affecting chiefly the Adipose Tissue ; Scltreme coiicret, Chavssier, Duces; Skin-boiuid , of English autiiors. 4. This variety generally depends upon the sudden impression of severe cold ; is compara- tively rare, and is chiefly met with in lyiug-iu and foundling hospitals. The cheeks, limbs, fore- arms, thighs, back, abdomen, chest, and jUeck, successively, or two or more of tiiem simultane- ously, assume a remarkable hardness, which yields not to the pressure of the finger. The temperature and sensibility of the surface are mueli depressed; aDd with difficulty raised. The skin is pale or yellowish, and wax-like ; sometimes livid or mottled. Trismus and opisthotonos are more common in this than in the preceding va- riety. There is little or no tumefaction or cedenia ; the skin being fixed and immoveable upon the subjacent parls. In some instances, the extre- mities and back are somewhat emaciated, dry, and even rigid, particularly in the advanced stage; and the cheeks and temples are collapsed. At the commencement, the appetite and digestion are often not much affected ; but during the pro- gress, and towards the close of the disease, the bovvels become more or less disordered. Dr. Den- MAx and Dr. Underwood seldom met with it but accompanied with some bowel complaint. The infant soon becomes too feeble to draw the breast ; it utters a peculiar moaning noise, or feeble whining cry ; and has the appearance, even early in the complaint, of dying; and, at last, sinks, apparently asphyxied. In favourable cases, the skin and extremities lose their hardness and rigidity, and the infant recovers gradually, if pulmonic inflammation does not come on, and carry it off. Inflammation of the indurated parts seldom or never appears in the course of this variety. 5. I. Pathgi.ogy. — i\I. Gardien states, that he has sometimes remarked a slight increase of heat precede the insensibility, coldness, and hardness of the parts affected ; but without any general febrile symptoms. The only indications of dis- order he has observed to usher in either variety, are difficulty of respiration, and a peculiar feeble- ness of the pulse and of the voice. Somnolency or lethargy is very usual during the course of the disease, and, as JM. Doublet observes, increases towards a fatal termination. The aflfection, par- ticularly the latter variety, is rarely congenital. M. DupARCQUE has detailed two cases in which the infant upon delivery was so hard and rigid as to resemble a mummy, the vessels of the umbilical chord being diseased. 6. A. Causes, — The different states of this disease have been attributed to a syphilitic taint. It is, however, most commonly owing to the Induration of — Causes. 307 influence of cold upon new-born infants, and generally occurs from the second to the four- teenth day after birth. Imperfect or unwhole- some nourishment, and the influence of a vitiated atmosphere, particularly the air of crowded hos- pitals, upon the imperfectly developed respiratory functions, are, in my opinion, amongst its most energetic causes. It is very apt to occur in pre- maturely born infants, in those of a feeble con- stitution, and who are deprived of the mother's or nurse's milk. M. Palletta remarks, that out of sixij'-five cases, forty were prematurely born. M. Ratier states, that ils dependence upon at- mospheric cold is shown by the greater number of cases at the Hospice des Enfans-Trouies, when winter sets in. But as a free ventilation, and dis- sipation of the foul air of an hospital ward, are in some measure prevented during cold weather, the prevalence of the disease at this season may be equally owing to this circumstance. JM. Billard has shown that the number of cases in the warm months is usually not much less than in the cold, in the above-named hospital. Dr. Bigeschi, how- ever, states a fact, in his report of the Lying-in Hospital at Florence, which shows the great influence of cold in causing this aflfection. He observed the disease very prevalent during the winter season, especially if rigorous ; and he con- sequenily ordered the infant to be kept in the mother's bed, as warm as possible ; and from that time no case of it occurred. JM. Souville has met with the disease frequently in the northern de- partments of France, and also attributes it chiefly to cold, the influence of which is likewise admitted by Palletta. It sometimes, also, occurs in the course of the bowel complaints incidental to in- fants, particularly when improperly nourished ; and it is frequently complicated with the jaundice of this epoch. JM. Bili.ard states that, in seventy- seven cases with cedematous induration, thirty were jaundiced. 7. B. Appearances in fatal cases, — In the first or most common variety, the cellular tissue is found loaded by a thick albuminous serum, which coagulates by heat, and which, according to JM. Leger and JM. Billard, partly escapis upon dividing it. Dr. Palletta, however, states that upon division, it remains firm and concrete, the infiltrated matter not escaping. In the second or more rare foim of the affection, the cellular and adipose tissues are hard, concrete, and frequently of a deep yellow colour. The adipose tissue often presents a number of small dark yellow grains dispersed through it. The lymphatic glands, as well as the mesenteric glands, are enlarged ; and slight serous or sero-albuminous deposition into the cellular tissue is observed throughout the body, with sanguineous or sero-sanguineous infil- tration of parts of it ; and eff"usion into the shut cavities. The vessels of the brain are usually congested. The cavities of the heart are loaded with blood ; the foramen ovale is sometimes more open than it should be ; the pericardium contains some sanguineous serum ; the lungs are often congested or hepatised ; and the larynx and epiglottis cedematous. The liver is frequently large and congested ; the gall-bladder and he- patic ducts full of bile; and the gastro-intestinal mucous surface more or less inflamed. The most constant morbid appearances are the engorgement of the venous system ; the dark or black state of X 2 308 CELLULAR TISSUE — In the blood ; the accumulation of a thick, deep- coloured, viscid, or coaguliited fluid in the adipose and cellular tissues, impartincr to them a condensed or firm appearance ; and the congestion of the thoracic viscera : but these latter are commonly not otheiwise diseased. 8. C. Proximate Cause. — The first variety of this aflfection may be considered as a form of oedema ; the peculiarity resulting chiefly from the thick, coagulable nature of the effused fluid, and the de- ficient developement of animal heat in parts far removed from the centre of the circulation ; in consequence of which the adipose matter either is secreted in a morbid state, or cannot be pre- served in its natural semifluidity. The second or more rare form of the affection is chiefly to be attributed to this change of the adipose substance, which, owing to defective vital manifestation in the part, and the depressed grade of animal warmth, assumes the condition which it usually presents soon after death. M. Uenis supposes that the disease is connected with the gastro- intestinal irritation so frequently found upon dis- section. Dr. HuLJiE, and, more recently, Dr. Pali. ETTA, viewed it as consecutive of, and occa- sioned by, the congestion of the lungs and the difficulty of the pulmonary circulation ; whilst M. Bahon, physician to the Parisian Hospital, in which from two to three hundred cases occur every year, considers that the internal congestion takes place subsequently to the appearance of the di'^ease. 1 believe that this is the more cor- rect view ; for M. Billard found unusual con- gestion or hepalisation of the lungs in less than one half the cases he examined. There can be no doubt, however, that as the affection of the cellular tissue proceeds, and as the circulation in this tissue and in the extremities is more and more retarded, congestion of the internal viscera comes on, but not always in the same organ ; the encephalon, cavities of the heart, liver, and spleen, also experiencing tliis change ; sometimes with serous or sero-sanguineous efl^usion into the ad- joining shut cavities. The frequent complication of the disease willi jaundice would seem to indi- cate that the biliary organs are moi-e or less affected ; and such may be the case in respect of their functions: but M. Billard found, in ninety cases, twenty only of organic lesion of the liver, the icteric appearance being evidently dependent upon the morbid state of the serum of the blood, and the deficient viial endowment of the cutaneous capillaries. JM. Breschet had found the foramen ovale more than coinmonly open in many cases, and inferred that the aflfec- tion was caused by this circumstance. M. Bil- LAKD states, that his numerous examinations do not countenance this inference, but admits that tbey are often coincident changes. This writer, who has paid much attention to the subject, concludes, that general debility, congenital ple- thora of the va-^cular system, congestion of venous blood in tlie tissues, and unusual dryness of the skin previous to the exfoliation of the ej)idermis, are its chief predisposing causes ; and that vas- cular plenitude, an engorged state of the cellular atid adipose tissues, and the influence of external agents interrupting cutaneous li-anspiration, are its more immediate causes ; the coldness of the extremities and affected parts resulting from the duration of — Treatment. slowness of the circulation and the depression of the vital powers. 9. DiAONosis and Prognosis. — A. This af- fection is obviously more or less intimately re- lated to oedema on the one hand ; and, in some instances, to erysipelas on the other: — to the former, by the effusion of fluid in the cellular iissue ; but difl'ering from it chiefly in the persist- ent, firm, wax-like, and coagulated state of the infiltrated past, and in the reddish yellow, livid, or mottled appearance of the skin ; — to the latter, by its frequently dark red or livid colour ; but difl^ering still more widely from it, in the pi'incijial aflfection of the cellular tissue, in the remarkable coldness of the part, languor of the circulation, and general absence of any change in the skin itself. And it is distinguishable from both, by the peculiar cry of the infant ; the weak, moaning, and sibilant respiration, the dyspnoea, the feeble irregular action of the heart ; the leipothymia and lethargy, and the frequent complication with tris- mus and tetanic spasm ; as well as with the peculiar jaundice of infants. It may be also mistaken for erythema nodosum ; but the knotted sensation upon passing the fingers over the skin, furnished by this affection, is sufficient, of itself, to distinguish it from the smooth, cold, and diflfused hardness of the present disease. 10. B. The Prognosis should be always re- served or cautious. A large proportion of those attacked die, particularly in hospitals, even under the most judicious management; sometimes in two, tiiree, or four days, in the most severe cases, and in prematurely born children that have been exposed, soon after birth, to cold. But, generally, the disease does not terminate either way in less than from six or eight days to twenty or thirty. It may even be more prolonged ; and, when re- covery is advancing, inflammation of the lungs or digestive canal, or effusion on the brain, may occur, and either cut oflT the patient, or put his life in the utmost jeopardy. 11. II. Treatment. — The intentions of cui-e will vary with the particular form of the disease. In the first, ov cedematous vaiety, in which vas- cular plethora is generally present, depletion is often of service ; particularly if the circulation in the extremities and affected part be at the same time excited by means of frictions with warm sti- mulating liniments. MM. Baron and Billard prefer frict'ons to the use of the vapour bath, recom- mended by MM. DuGKs, Peligot, and others. In the second variety, in which there is less oedema, and greater induration, and, according to several recent writers, a coagulated state of both the adi- pose substance and the fluid eflfused into the cel- lular tissue, blood-letting may not be admissible. MM. CiiAMDON, Pai.letta, and Gardien, how- ever, consider that, in this variety also, depletion sl.ould be practised, in order to relieve the cere- bral congestion attending it ; and therefore re- commend two small leeches to be applied behind the ears. In this practice I have generally con- curred, but have adopted it with much caution in prematurely born or weakly infants ; directing, also, for all the states of the disease, calomel or iiydrarg. cum creta, witli soda, and small doses of ammonia; the compound decoction of sarsaparilla with liquor potassaj ; the warm bath, followed by repeated frictions of the surface with stimulating CHEST— External Ex liniments ; and the nouvishmentof Nature intended for the infant. Although a very common and fatal disease in France, it is seldom observed in this coimtry ; and even at the Infirmary for Chil- dren, cases of it have very rarely presented them- selves. I have not met with an instance of it in tlie Queen's Lying-in Hospital. 12. After the above means have been perse- vered in for a time, a few drops of spirits of tur- pentine and sweet spirits of nitre may be given occasioniilly in sugared dill-water ; and the infant enveloped in very soft flannel or wash-leather, which ought to be covered over with oiled silk, in order to prevent the dissipation of the animal heat. Dr. Palletta states that he treated, with uncommon success, the very numerous cases that occurred in the Lying-in Hospital at ftlilRn, with half a grain of the kermes mitiernl ( F. 6.37.) given three or four times a day, and warm bran or warm flour applied to the parts affected. An- DRY and Gardien advise the use of blisters; — the former to the affected parts ; the latter to the nape of the neck, with the view of preventing the occurrence of cerebral conge?tion; — but I have had no experience of their U'^e in this disease ; and consider them less efficacious than frictions with stimulating liniments, several formiilae for which are given in the Appendix. During treat- ment, a pure warm air, and the natural food of the infant, furnished by a healthy nurse, will be found extremely conducive to recovery. BiBLioG. AND Refer Vzembezhis, in Ephem. Nat. Curios, cap. ix. ob. 30. p. 62. 171S. — Doublet, in Joiirn. de Med. Avr. 1785, p. 447. — Beaumes, Fondemens de la Science Method, des Maladies, t. i. p. 31-1 — Underwood, On the Diseases of Children. 8th edit. 8vo. p. 25G Gar- dien, Traite Comp. d'Accouchemens et des Malad. des Filles, des Fern, et des Enfans, t. iv. p. 91. Paris, 1826. Pallctla, in .\rchives Gen. de Medecine, t. v. p. 105., et Ibid. t. ix. p. IIG.—Liger, in Ibid. t. vii. p. 16 Du- parc(/ue,'tiouv. Bibliotheq. Med. Sept. 182S, p. 333. — Jin/wr, Arcliives Gener. de Medecine, t. X'ii. p. 42 Bitlard, in Ibid. t. xiii. p. 204, et Traite des Maladies des Enfans, &c. 8vo. Paris, 1828, p. 169 — Duges, Manuel d'Obstetrique, &c. Paris, 1830, p. 437. CEPHALrnS, See Brain, Inflammation of. CHEST. Svx. Thorax, Fr. Der Brustkasten, Ger. Tnrace, Ital. The Thorax. Exterval Examination of, in the course of Disease. — Classif. General Pathology — Semeiologv. 1. Regions of the Chest. — It is necessary to divide the chest into different regions, in order to give precision to our diagnostic researches. This is done by drawing horizontal and vertical lines from certain conspicuous parts of the body. The first horizontal or transverse line extends ante- riorly from the humoral extremities of eacii cla- vicle, across the junction of the clavicles with the upper part of the sternum, posteriorly passing over the last cervical vertebrffi ; the second, around the middle of the chest, anteriorly passing over the nipples, and posteriorly parsing between the spine of the scapulae and their inferior margins; the third pas^^es around the lowest part of the chest, from the zyphoid cartilage, and over the hypochondria. The first vertical line extends from the upper to the lower extremity of the sternum ; the second and third, from each acro- mial extremity of the clavicles to the external rami of the pnbes ; the fouttb and fifth, from each posterior margin of the axilla; to the crests of the ilia; the sixth and seventh, from the clavicular transverse line along the posterior border of each AMINATION of, in DtSEASE. 309 scapula, or a little exterior to it, to the middle horizontal line ; and the eighth, along the spinous processes of the dorsal and cervical vertehrae. 'i'o these lines may be added one drawn on each side, from the last cervical vertehra, around the lower pait of the neck, and sloping downwards to the upper part of the sternum. I'hus the chest will be divided into sixteen regions, viz. two superior, or humoral regions ; four anterior, — the subclavian and submammary ; four lateral, — the axillary and subaxillary ; and six posterior, — the scapular, subscapular, and interscapular. 2. The viscera lodged beneath each of the difterent regions of the chest, and the nature of its parietes, are too well known to require any notice. I therefore proceed to point out the va- rious methods which are employed to investigate the diseases of the thoracic organs. These con- sist of inspection, mensuration and manual ex- amination, percussion, succussion, and auscul- tation. 3. A. Inspection. — It is important for the physician to take into consideration the form and size of the chest, in estimating the causes, nature, and tendencies of disease. Vigour of constitution is generally incompatible with a small or ill formed thorax ; this conformation not only dis- posing to various affections of the viscera con- tained in this cavity, but also aggravating their severity. Every change from the due proportions of the chest ought to be considered of importance. This cavity is generally artificially modified in its form in females. Its capacity is reduced in a transverse direction, by the lateral compression to which it is subjected ; and, owing to the same cause, the superior abdominal viscera are pushed upwards, and it is thereby further diminished in a vertical direction. But the compression thus exercised not only reduces the absolute capacity of the chest, but it also prevents the elevation of the ribs, and the descent of the diaphragm during respiration, rendering each inspiration of small amount, and insufficient for the developement and wants of the frame. It moreover presses the lower ribs downwards and inwards upon the more important viscera contained in the abdomen ; prevents the ascent of the contents of the caecum ; and favours lateral curvature of the spine, which, in its turn, tends remarkably to diminish the ca- pacity of the chest. 4. During inspection of the thorax, there are other circumstances, besides its form and size, which should fix attention. 'The action of its parietes, the equality of the motions of each side, and their connection with the movements of the abdomen, are of the utmost importance. In pteuritis, the motions of the ribs of the aflTected side are greatly impeded ; and if both sides be afl^ected, the costal parietes are but little moved during respiration, this function being chiefly per- formed by the diaphr.igm and abdominal muscles. On the other hand, when the diaphragm, or either of its serous surfaces, are inflamed, or when intense inflammation affects any of the superior abdominal viscera, respiration is chiefly performed by the costal parietes. In the first case the re- spiration is said to be abdomimd, in the second thnracic. 5. It is chiefly by actual inspection of the chest that we can ascertain the existence of oedema of its surface: the distance between the X 3 310 CHEST — Deformities of the. ribs, the prominence of the spaces between each, the existence or non-existence of partial contrac- tions, and bulgings or prominences of its walls, — are all important facts in our diagnosis of dis- eases seated in this cavity. Thus, in phthisis, when the pulmonary tissue is tuberculated, shrunk, or contracted, &c., a falling in of the ribs, par- ticularly of the subclavian region of one or both sides, is observed : whilst in asthma and em- physema of the lungs, the ribs are full and ex- panded. This slate, however, of the ribs may exist only on one side; as in cases of pleurisy of one side, terminating in effusion, in empyema, and in pneumothorax, we often observe the af- fected side expanded, and the intercostal spaces prominent, whilst the other is natural. In other instances of organic disease, one side may be un- commonly contracted ; as after cures of old, or chronic, or circumscribed pleurisy, in partial or general destruction of one lung, and in lateral curvature of the spine. In many of these, the opposite or sound side is fully developed, owing to a slight hypertrophy of the sound lung; in eases of curvature, one side is always prominent in pro- portion to the depression of the other. The pro- minence of the sternum, and lateral depression of the ribs, which is so common in children ; and the falling in of the sternum, and prominence of the ribs; are ascertained by inspection. 6. B. Manual examination and mensuration, — It is of importance to ascertain the existence of tenderness on pressure in various parts of the chest, particularly when the patient complains of pain, or difficult respiration. This can only be done by manual examination. Extreme sensi- bility of the external surface indicates either irri- tation of the membranes of the spine, or rheuma- tism affecting the parietes of the chest. When pressure in the intercostal spaces is required to develope the pain, disease is usually seated in the pleura, or parts beneath it, or in the pericardium. It is seldom, however, that we can occasion pain by pressing between the ribs in cases of organic disease of the substance of the lungs, or even of the pulmonic pleura, unless this latter has formed adhesions to the costal pleura. During manual examination, attention should be paid to the ex- istence, the kind, and the extent of moisture on the surface of the chest ; to its temperature, which is generally more or less increased in in- flammations; and to the palpitations or impulse of the heart. It is evident that the existence of oedema or emphysema of the surface of the chest is chiefly to be ascertained by manual examina- tion of it. 7. Mensuration of the chest may be sometimes required, in order to ascertain either the degree of prominence of one side, or of the contraction of the other. In both cases a piece of tape is used ; the measurement being made from the spinous processes of the vertebra; to the central line of the sternum, and from the lop of the shoulder to the lowest rib. The admeasurement should be taken during a full inspiration and expiration, and the progressive increase or de- crease noted. It will often happen that no dif- ference between either side exists during a stale of tran(|uil respiration; and yet, upon forced re- Kpiniiioii, the difference is very manifest. H. Mr. AijiKNiiiiY pro|)os'j(l, many years ago, — and the proposition has been recently revived on the Continent, — to ascertain the capacity of the lungs, by measuring the quantity of air they are capable of containing, as an indication of the extent of disease by which they are aflfected. The recommendation was rational, and deserving of greater attention in several affections of this organ than it has received, particularly when the evi- dence furnished by the measure is duly estimated in conjunction with other signs. The method simply consists of the patient taking as deep an inspiration as he is able, and then expiring through a tube, one end of which is passed under a glass jar, containing, and inverted over, water. The quantity of water displaced is the measure of the capacity of the lungs. A person, lull grown and in health, usually displaces from six to eight pints. If the amount be much less than this, it may be inferred that the lungs are obstructed by disease of their substance, or by tumours, effu- sions of fluid in the pleura, or other causes press- ing upon them externally. Although muscular de- bility, or spasm, may diminish the quantity of air inspired, yet there can be no doubt that the method is calculated to furnish very useful information. 9. Some years since, it was proposed by a physician on the Continent, to test the capacity and soundness of the lungs by causing the patient to take as full an inspiration as possible, and to count from one upwards, in a deliberate manner, during the following expiration, and whilst ex- piring as slowly as he can. The number that will be reached, either during the expiration or whilst the breath is retained, or before a new in- spiration is entered upon, will be an index of the soundness of this organ. Dr. Lyons, who has more recently recommended a modification of this method, advises that the period should be noted by the seconds hand of a watch. He states that a healthy individual will not continue count- ing above thirty-five seconds; and that, in con- firmed phthisis, the period never exceeds eight, and seldom six seconds. I have practised this method during the last five years, and have sel- dom found a healthy person who could proceed beyond thirty-five seconds, and scarcely one who could go beyond forty ; but I have met several cases of pulmonary consumption, where, up to a very advanced stage of the disease, twelve, fifteen, and, in one case, twenty seconds were reached; and even in the last stage, eight or ten seconds are not uncommon ; although the number men- tioned by Dr. Lyons is much more fre(]uent. Percussion, succussion, and ausciiltation of the chest, are comprised in the articles Auscultation and Percussion. BiuLioG. AND ItEFER Aucnhrugfser, in Journ. de Medcrine, t. xxxii. p. 84 Duttble, in Journ. Gener. de Med. t. xxix. p. 241. — Lacnnec, De I'Aiiscultation Mediate, I've. 2d edit. 8vo. t. i. Tar. lA'ir,. — Ahciwlhi/, Physii>liigical Essays, part ii. p. I.i7. — Lynns, VaUw. Meil. .loiiru. vol. xxviii. p. 45:). — Unpuylroi, Ariliives (ion.dc M6d. t. xvi. p. .').56. — I'iorry, I'roccde Operatoire, &c. dans rExploration des Organes, 8vo. Paris, 1831. DEionMrriES or the Chest. .— Classif. I. Class, III. Order (Aullior). 1. I. Latehai, Depression of the Chest. — Depression of the lateral parietes of the chest had escaped the attention of authors, although of very frequent occurrence, until ]\]. DuruviREN wrote a memoir on the subject {Repertoire Gen. d' Ana- tomic, &;c, I. v. p. 1 10.). A few scattered remarks on the subject may be found in the writings of V'an Swieten, J. L. I'etit, Levacheu, and CHEST — Defo oilers, who have attributed it to rickets and other affections, and iiave evidently been unacquainted with its nature, causes, effects, and metliod of treat- ment. Not a week passes without cnses of this contraction being presented at the Infirmary for Children ; and, although sometimes a congenital deformity, it has appeared to me very frequently to be greatly increased, if not altogether occa- sioned, subsequently to birth, by the very common practice among nurses of lifting the child by press- ing the palms of the hand on the sides of the chest, immediately under the armpits. This deformity consists of a greater or less depression of both sides of the thorax, with a proportionate protuberance of the sternum and abdomen forwards, and of the vertebral column backwards. 2. It is most commonly found in infants born of debilitated, lymphatic, scrofulous, and rickety pa- rents,— particularly tliose inhabiting low, cold, and moist situations, or who live in small ill-ventilated apartments, — and amongst children who are badly clothed and nourished. In many cases the de- formity does not consist of merely a level depres- sion of the lateral parietes ; but the ribs are actually bent inwards, the sternum and spine forming a curve outwards. In some the lower or upper parts of the sternum are the most promi- nent. This extreme grade of depression is seldom or ever met with at the moment of birth ; M. Uo- PUYTREN thinks differently. My experience leads me to state that it generally comes on gradually after biith, owing to deficient inflation and deve- lopement of the lungs, arising from the weakness of the muscles of inspiration, and flexibility of the ribs at the time of birth. In cases of this descrip- tion, the vital energy of the lungs is insufficient for their healthy actions, and the respiratory me- chanism is unable to accomplish their full expan- sion, or to sustain the continued pressiire of the atmosphere, before which the soft and imperfectly formed thoracic parietes gradually yield. The manner in which nurses frequently lift infants, as already stated, tends further to increase the mis- chief, particularly in those who are originally weak and ill-nourished. The effects of this co- arctation of the thorax upon the functions, and ultimately on the structure, of the lungs and heart, soon become very evident. We usually find the pulse quick, and the breathing oppressed ; with a weak voice, occasional anxiety, and inca- pability of speaking or reading for any time, or of uttering many words without frequent pauses. In the newly-born infant, there is a great difficulty of suckling, from its inability to raise the ribs with sufficient power to perform this process. It is seized with suffocation when at the mother's breast, which it often quits with fits of crying. As it advances in age, the disorder of respiration and circulation is still more remarkable, particu- larly upon ascending acclivities. The pulse be- comes quick, irregular, or intermittent ; and is accelerated upon the slightest cause, whether phy- sical or mental. 3. In children whose chest is thus compressed, the tonsils generally, or rather constantly, become tumid, — so much so, as frequently to increase the disorder of the respiratory actions ; and all the structures and organs of the body are impaired both in function and in developenient, owing to tlie derangement which the deprc'^sion occasions to respiration and ciicuKition. In many cases which RMITIES OF THE. 31 1 have coine before me, rapid emaciation, great de- bility, defective assimilation and sanguifaction, an atrophied and flaccid' state of the muscles, soften- ing of the bones, frequently asthenic or chronic bronchitis, and swelling of the glands, have fol- lowed the deformity, and terminated the life of the patient. 4. Organic lesions. — In these cases the appear- ances observed on dissection are such as the ori- ginal and consecutive ailments lead us to expect. These consist in retarded developement of the skeleton ; want of union between the bones com- posing the cranium ; enlargement of the heads of the long bones, sometimes with softening and flexures of their bodies. Dentition is also re- tarded ; and, if it have proceeded, the crowns of the teeth are eroded. The voluntary muscles are atrophied, soft, pale, and exhibiting a fish-like structure. The lungs are compressed towards the vertebral column, and present a corresponding depression to that of the lateral parietes of the chest, with the marks of the ribs indented in their posterior and lateral surfaces. This organ is often studded with tubercles of various sizes ; portions of it are frequently inflamed or hepatised ; and, in some cases, attended with bronchitis, the bronchi are more or less loaded with mucus, or muco- purulent matter. The substance of the heart is commonly pale and flaccid ; and, in young in- fants, the foramen ovale is sometimes widely open ; and in older children but imperfectly closed. The mucous follicles of the intestinal canal are often tumefied, but rarely ulcerated, excepting when a chronic diarrhoea has attended the latter stages of the thoracic compression. The mesenteric glands are also occasionally much enlarged. 5. II. Depression of the Sternum, with late- ral prominence of the ribs. — This deformity is the reverse of the former: the sternum is pressed in- wards, either at its middle or lower part, or along its whole extent ; the ribs are very much bent, and prominent laterally ; the chest being broad, but compressed anteriorly, the shoulders high, and the spine either straight or but little altered from its natural form. This change has also been much overlooked by authors. INIr. Coulson, how- ever, has lately noticed in it an instructive article on deformities of the chest. It is by no means uncommon both in young and grown-up subjects, although not so frequent as the lateral depression. In cases of depression of the sternum, the lungs and heart are compressed anteriorly ; their func- tions much altered, and ultimately their structures. This deformity is very seldom congenital, being the consequence of weakness, or of a scrofulous or tubercular diathesis. I have met with two in- stances of it out of six members of one family who died of consumption soon after puberty. It is in some cases antecedent of any apparent disease of the lungs ; in otfjer instances, it is consecutive of pulmonary disease ; and in others, of external pressure and stooping occupations. 6. It is not uncommon to find females with the chest of a cylindrical or oval form, instead of being a truncated cone ; entirely in conseciuence of the inordinate pressure to which its lower part has been long subjected from tight lacing of the stays. In some of these cases, the sternum, particularly its lower part, is piesscd inwnrds. The effects, however, of this habit, and of the deformities which it occasions, have been alluded to in an- X 4 312 CHICKEN-POX. other part. (See Chest — Examination of the, §3.) 1. III. Treatment.— ^^. The cure of the lateral depression of the chest is by no means so hopeless as it may appear, -particulaily if it be attempted at an early period, and before serious organic mis- chief has been pruduced. Invigorating medicines and nourishing diet are requisite, particularly in conjunction with various external and mechanical means. 8. a. The external treatment which I have found the most successful, consists of warm or tepid salt water bathing in infants ; and in directing tlie mother to make pressure very frequently tlirougb Uie day upon the protuberant spine and sternum, by placing one hand on the former, and the other on the latter. But this pressure must be so managed as to be made only at the moment of expiration, and entirely suspended during the moment of inspiration, so that no impediment may be in the way of the free dilatation of the parietes of the chest. The practitioner should take care to instruct the mother in the manner of employ- ing the pressure upon the sternum and spine, with the view of throwing outwards the depressed lateral walls of the chest. The more frequently this pressure can be employed, the better ; and its benefits will be considerably promoted by ap- plying the following liniment, night and morn- ing, along the spine, or even uport both the sternum and spine. I have employed this and similar liniments, in these situations, with the gieatest advantage, in this and several other dis- eases connected with debility, particularly in young subjects. No. 110. R I,inimenti Campliovae Comp., Linim. Sa- ponis Comp., aa 3 j. ; Olei Tereljintliinae 3 vj. ; Beiizoini Sij-; Stjracis Balsamijjss.; Olei Cajuputi, OleiLimonis, aa 3 ss. M. et fiat Linimentum. 9. In public practice, I have visually substi- tuted for the above, either equal parts of the com- pound camphor and turpentine liniments; or the=e, with the addition of the soap liniment, or their equal quantities of olive oil and turpen- tine, with a liltle soft soap. In conjunction with these means, the artificial salt water baih, with a very large proportion of salt, at a tem- perature suited to the peculiarities of the case, will be found extremely serviceable. As soon as children affected by this depression of the walls of the che>;t can be brought to employ the muscles of the upper part of the body in a determinate manner, this mode of treatment should also be employed. Perhaps the best mode of overcoming the depression, by developing muscular action and power, is to cause the child to raise weights, by mejins of ropes and pulleys plactrj at a consider- able height o\er its head ; so that, by taking hold of the lope with both hands raided above the liead, and pulling it downwards, the muscles may be brought into action, anil the parietes of the chest thereby dilated, iiut modemte and duly regelated exercise, particularly of the muscles of the aim and trunk of the body, accompanied with invigorating nitdieines and regimen, will be pro- ductive of benefit. 10. h. Inlernal treatment should always be conjoined with the means stated above. The digestive functions generally retjuire regulation, and tonic or permanent excitement. After having evacuated nuirbid si cretions and faval accumu- lations fiom the bowels, by means of the usual purgatives, of which rhubarb, or senna combined with a tonic bitter, is among the most suitable, Brandish's alkaline solution, or the solution of potash, or other preparations of this substance, may be given, either in some gruel or mutton broth, or in a tiniic infusion, or combined with the preparations of iron. The following powders may also be taken once, twice, or thiice daily : — No. 111. R I'erri Sulphatis exsic. gr. ij. — vj.; Potasss .^ulphatis gr. xij xx. ; Pulv. Ca>CHrillaB 3j. — 3 jss. Misce bene, et divide in Chartulas xij. sequales, quarum capiat unam bis terve quotidie. No. 112. R Potassae Carbon, gr.j iv. ; Ferri Sesqiii- oxidi gr. iij.; Pulv. Rhei gr. iv. — ix. ; Pulv. Cascarillae (vel Calumba") pr. v — xij. Misce. Fiat Pulvis. No. 113. R Ferri Potassio-Tartratis gr. iij. — xvj.; Pulv. Caluraba; gr. vj — xij. ; Pulv. Zingib. gr. ij. M. Fiat Pulvis. 11. Instead of these, the tincture of the am- monio-chloride of iron ; mixtures containing sul- phate of quinine ; or the tincture of iodine, in doses of one to three dops, twice or thrice daily, may be employed advantageously. In every other respect the treatment is the same as that recommended for Rickets. But whatever mode of cure be adopted, change of air, or at least a wholesome pure air, with regular exercise, is requisite to its success. In this deformity, the various exercises resorted to with the view of imparting strength and agility to the frame, will be useful, if judiciously directed. 12. B. The treatment of the other deformities of the chest must be conducted very nearly on the same principles ; the pres-ure, in cases where it may be proper to have recourse to it, being made in an opposite direction to that recommended above, when the anterior parietes are depressed. But this deformity is very seldom met with so early in life a? to admit of any expectation of ad- vantage fi om the use of pressure. The other means, as Icng as the pathological states of the thoracic viscera do not contra-indicate them, are tlie most applicable. BiBLiuG. AND Refer Dripuytren, in Repertoire Ge- nerate d'Anatomie et Patliologie, tS;c. t. v. p. 128 — Cuiii. son, in London Medical Gazette, vol. iv. p. G'J. ; and on Deformities, &c. 8vo. Lond. 1S3.5. CHICKEN-POX. SvN. Varicella, Crystalli, Va- riola Spuria, Variola Lymphatica , Variola Vola- tica, Auct. Var. Variola Pusilla, Ileberden. Exanthema Varicella, Parr. Synochus Vari- cella, You\ig. Emphlysis Varicella, Good. Verole Volnnte, Fr. Die Undchten Kindipocken , Ger. Ravaglione, Ital. Water-jags, Water-ppx. Classif. 1. Class, 3. Order (Cullen). 3. Class, 3. Order (Good). 111. Class, III. Order (Author). 1. Dkitn. A71 eruption over the body, of semi- transparent glabrous vesicles, ivith red 7nargins, accompanying a slight attack of fever, seldom passing into suppuration; hut, on the third day, bursting at their tips, concreting into sinnll puck- ered scabs, and leaving no cicatrices. 2. Under the name chicken-pox, or varicella, have generally been comprised certain eruptions, which closely agree in many features with each other, and which in some respects resend)le small- pox. Jt is from this latter circumstance that they claim a very particular notice, as they are generally of .so slight a nature as to require but little medical treatment. They were formerly very generally confounded with small-pox : but the difference between them was remarked as early as the beginning of the sixteenth century by \'iDus Vioius and 1ncrassi.»\s. Sennert and CHICKEN-POX — Descrii-tion "of. 313 RivERi, professors at Wurtemberg and INIontpel- lier at the conimencenient of the seventeenth century, and DitiiKnuiiOEK, state that the dis- tinction was well known in Germany, France, and Italy, to the vulgar, who had a separate ap- pellation for this eruption. RIomoN was the first in this country to mark the difference, and to de- scribe this disease under the name " cliicken-piu," by wliicli it appears to have been commonly known before lie wrote. Since then it has been noticed by Fuller, and accurately defined as a distinct disease by Heberden. He, however, continued to designate it by the term varioLi piisilla ; whilst his contemporaries, Vogel, Bur- SEiuus, and Sauvages, also applied to it the generic term variola, with the specific desig- nation of vclatica, spuria, and lumphatica. But as Dr. Bateman has remarked, this circumstance cannot be considered evidence of their consider- ing it as generically the same with smallpox. The entirely distinct nature of chicken-pox was very generally believed in, since Dr. Heberden pointed out the difference between it and the small-pox, until recently questioned by Dr. John Thomson, by whom the opinion of the earlier physicians, that they are merely varieties of the same disease, has been revived. This learned physician, and M. Berard, urge in favour of this opinion the circumstance of variola and vari- cella appearing from the same exciting causes, whether those affected have been vaccinated or not; and affirm, that persons exposed to the in- fection of chicken-pox have caught small-pox, and that the foimer appears only in those whose constitutions have been modified by the influence of either small-pox or cow-pox. On this subject j\IJ\l. Schedel and Cazenave remark, that in those epidemics which they have had opportu- nities of noticing in Paris, the several eruptions might be classed under three heads : 1st, Variola properly so called ; 2dly, The malady termed vari- loide, or variola modified ; 3dly, An eruption purely vesicular, ofTering every appearance of varicella. 'J'he same cause, namely, variolous infection, seemed to develope these several eruptions, which were observed in the same quarters, in the same streets, in the same houses. VV hen the disease made its appearance among a numerous family, some had small-pox, some modified small-pox, and others chicken-pox. One circumstance was striking to every one, namely, the mildness of the disease in those persons who had been vacci- nated, and in the majority of those who had al- ready had variola. 3. These facts certainly favour the opinion of Dr. Thomson ; but, as the above writers have stated, many cogent arguments have been urged against it, especially by Abercrombie, Bryce, LuDERs, &CC.: — 1st, It is very difficult to deter- mine, during a small-pox epidemic, whether the occurrence of that disease among individuals coming in contact with persons infected with chicken-pox is rather the result of tliis communi- cation, than of the variolous infection which at tiiat moment developes the malady on all si. vel Olei Caryopli. q. s. M. Fiant PiluIiE diia;. During the use of these, it will generally be requisite to promote the functions of the liver, and excite the bowels, by the occasional repetition of the calomel and ginger at bedtime, and the purgative draught the following morning. Ir» some cases, the operation of the medicine may be very advantageously promoted by an enema. In many instances, nothing beyond what is now re- commended will be necessary ; but, in addition, a course of chalybeate mineral waters may be directed ; and, under every circumstance, exer- cise in the open air, particularly on horseback, change of air to the sea-coast, a light nutritious diet, and warm clothing, especially of the lower extremities, should be recommended. Flannel drawers will be found of service in winter. 14. B, In its second stage, or in the more ob- stinate cases, or when the affection is attended with diflrcult or scanty menstruation, the tinct, ferri ammonio-chloridi, or the tinctura guaiaci composita, and the phosphate of iron or the io- dide of iron, are preferable to the sulphate of iron, — the compound aloetic decoction being the 318 CHOLERA — History and Symptoms. most suitable aperient. When pains of the head, or of the left side, or other symptoms of hysteria, or palpitations, are complained of, these medicines will be advantageously associated with camplior and hyoscyamus. When the torpor of the uterine system is evident, conium will, however, be pre- ferable in such cases to hyoscyamus, and may be given either with these medicines, or with any of the ammoniated spirits. In a few obstinate cases of the disease, 1 have prescribed, with marked ad- vantage, small doses of the extract of nux vomica, and the strychnine, as in Formulai 542. 565. and 907. 15. If the disease still persist, if the ankles swell, or if dropsical symptoms come on, and the menstrual evacuations continue suppressed, ad- vantage will sometimes accrue from the iodide of iron, and from rubbing the loins assiduously every night with either of the liniments, F. 296. and 311., and acting gently on the bowels by means of the following pills : — No. 116. R Pilul. Aloes cum IMyrrha 3j.; Saponis Castil. 3ss. ; Olei Crotonis Tiglii HI iij. Contunde bene simul, et divide in Pilulas xxiv., quarum omni nocte capiat unain, duas, vel tres. 16. In the course of practice, I have seen three cases of the disease complicated with swelling of the parotid and submaxillary glands. In order to remove these tumours, I prescribed iodine in- ternally, in small and frequent doses, giving also at bed-time the aloes and myrrh pill. In these instances, the menses gradually came on, and all disorder vanished. I have on other occasions observed a very marked emmenagogue, as well as tonic effect, produced by the preparations of iodine ; and from these effects, as well as from their efficacy in the above cases, I consider them calculated to prove of use in certain states of obstinate chlorosis. On some occasions, par- ticularly when chronic eruptions appear in the course of the disease, sulphur will be fouml the best aperient, and the following pills will be pro- ductive of benefit ; but, in addition to those al- ready particularised, several recipes will be found in the Appendix suited to the different forms and complications of this affection, as well as of other derangements of the uterine functions. No. 117. IV .Sodse Bi-boratis 3 ij. ; Sulphuris Pracip. 3 j. ; Mucilag. Acacia; q. s. Fiant Pilulfe xxiv., quarum ■capiat tres, ter quotidife. (See also F. 519.) No. 1 18. R Sodse Bi-boratis 3 ij. ; Pulv. Capsici Annui 9 j.': Pilul. Aloes cum Myrrha 3j--, Olei Sabinae q. s. M. riant Pilula? xxx., quarum capiat binas ter die. No. 119. R Ferri Sesquioxidi 3j.; Sulphuris Depur. 3 j.; Myrrhse, Alfies Soc, Fellis Tauri Insp.,aa 3 ss. Con- tunde bene simul, et divide in Pil. gr. iv., quarum sumat binas vel tres, bis lerve in die. 17. Electricity and galvani.sm have been ad- vised by IIenaud and Sigaud la Fond for this disease: and the ammonio-sulphate of copper, by BiANciii. The preparations of iron have very pro- perly been directed, in conjunction with the alkalies and myrrh, byWiLi-AN, with stimulants and bitters, by Scii/EFFEn, with assafoetida, by Hirsciiel, and with cinchona and rhubarb, by RANoii. Mar- riage has been suggested as a remedy for chlorosis, by Wedki,, Le 13lanc, Koute, and several others. Cold bathing has been recommended by JiRANDis, and condemned by Darwin ; and pur- gatives have been chiefly depended upon by Hamilton. The use of mineral waters is cer- tHJnly of much service in chlorotic cases. Those of Driburg, Pyrmont, Spa, Carlsbad, &c. on the Continent, have been much praised by Brandis, Marcard, and Kressio ; and the chalybeate springs in this country, by most practitioners. But equal advantage will sometimes accrue, in the inveterate forms of the disease, from the sul- phureous and saline waters, in addition to a ju- dicious course of medicine; and from the Bath and Buxton warm springs, used in the form of baths. The warm hip-bath, some salt and a little mustard having been added to the water, is also beneficial. (See IMenstruation.) BiBLioG. ANO Refer. — Hippocrates, De Morb. Mul. sect. V. p. \25.—Ballonius, De Mofb. Mul. Opera, vol. iv. pp. 6G. 129. — Le Blanc, Ergo Venus Amantium Ictero. Paris, IGId i/()/5/!«nn, De Genuina Chlorosis Indole, V. Opera, Supp. ii. part ii. p. 389. — Wedel. De Chlorosi seu Foedis Virgiuium Coloribus. JenaB, 1681; et De Ve- nere Medica et Morbosa, p. 2.3. — Kortc, De Pallore Vir- ginum, Venerem indicante. Hal. 1759. — Ilanoe, in Acta Keg. Soc. Med. Haun. vol. iv. p. 114. — Richter, die Spe- cielle Therapie, &c. b. iii. p. 7.52. — Darwin, Zoonomia, vol. iii. p. 157. 8vo. ed Brandis, Ueber die Wirkung der Eis- eniinittel und, &c. p. 1 13 Sc/icejfir, in Hufeland's Journ. der Pract. Arzueyk. b. vi. p. 267 Bianc/ii, in Brera, Com- ment. Med. dec. i t. ii. n. 2. — Cullen, Works by Thom- son, vol. ii. pp. 293. 384 Hamilton, Observ. on Purgative Med. &c. ch. iv. — Gagnion, Sur la Pubertede la Femme, et sur le Chlorosis. Paris, 1809. — Frank, Efemeridi Fisico- Medici, 1805. — Horn, Archiv fiir Pract. Med. b. v. st. 1. p. 90. — Desormeaux, Diction, de Med. t. v. p. 166 Roche, Diet, de Med. et Chir. Prat. t. v. p. 230. CHOLERA. SvN. Cholera Morbus, Passio Cho- lerica, Diarrhoea Cholericu, Auct. Lat. Cho- l^ree, Cholerraggie,Trouise-galant, Fr. Die Gal- lenruhr, Brechruhr, Ger. Diarrhwa Cholera, Young. Bilious and Spasmodic Cholera, Classif. 2. Class, Nervous Diseases; 3. Order, Spasmodic Affections (Cjillen). 1. Class, Diseases of the Digestive Func- tions; 1. Order, Affecting the Alimentary Canal (^Good). II. Class, III. Order (^Author, in Preface). 1. Defin. Griping pains, followed by vomiting and purging, very rarely uith flatulent eructations and dejections, and always with spasms of the extremities, particularly the inferior, and anxiety. 2. I. History and Sybiptoms. — The term Cholera 'has been in use since the time of Hip- pocrates, who admitted two species of the dis- ease,— one humid, the other dry, — xo^^'p" ^7P^> XoXepoL ^vpO: According to Cflsus, it is derived fiom x^^h and peco, signifying literally hile-fux. Trallian, however, derives it from x^^"-^ ^nd piiji, intestinal fux. Galen, adopting the dis- tinction established by Hippocrates, attributed the humid cholera to the presence of acrid hu- mours generated by the corruption of the food ; and the dry cholera, to an acrid flatus. With very slight modifications, this doctrine was re- ceived by Fernel, Baillou, Sydenham, F. Hoff- mann, Bianchi, Sauvages, and Vogel, the dif- ference chiefly consisting in the part they ascribed to the bile, and to the state of this secretion, in the production of the disease. Cullen directed atten- tion, more accurately than his predecessors, to its nervous and spasmodic characters. Pinkl was, however, the first who made any considerable in- novation on the opinion of the Ancients as to its nature. He classed it as a species of the genus of fevers, to which he applied the term of Meningo- gaslric. M. Gfoffroy (^Dict. des Scien. Med. t. V.) subsequently attributed to it an inflamma- tory character ; and RllVl. Buoussais and Gravier afterwards contended that it consists of inflamma- tion of the mucous surface of the digestive tube commencing with nervous symptoms. CHOLERA — History and Symptom?. 319 3. This diversity of opinions will be fully ac- counted for in the sequel ; but I may at present remark, that they may be in many respects recon- ciled, inasmuch as the particular form of disorder, for which each exclusively contends, frequently exists as a part of the morbid condition con^ti- tuting the disease. After having paid considerable attention to the literature of cholera, and had much experience of all its forms — of two of them in my own person — I consider that it admits of division into the following distinct varieties: — 1st, The Cholera Biliosa, or bilious cholera ; 2d, Cholera Flatulenta, flatulent cholera; 3d, Cholera Spasmodica, the spasmodic cholera, or Mart de Chien. As I believe the disease which has appeared in recent times, and has received nu- merous appellations, among which that of epide- mic cholera has been most commonly used, to be a different malady from the other forms of cho- lera, 1 have treated of it in a distinct article. (See Pestilence.) i. Choleua Biliosa, Bilious Cholera; x°^^P°- vypriyGr.; Cholera Humida, Lat. ; Choler- ragie, Fr. ; Die Gallenruhr, Ger. 4. Defin. Copious and frequent vomiting and piirgiiig, at Jirst of the alimentary andfiEcal mat- ters, with a redundancy of bile, and spasms of the legs and thighs. 5. Causes, States, ^c. — This is the most common variety, and presents itself sporadically, endemi- cally, and in an epidemic form. When it appears sporadically, it is often slight, and of short duration ; but it is also sometimes extremely severe, accord- ing to the state of the patient, and nature of the exciting causes. In this form, it is not infrequently met with during summer and autumn, and but very rarely in spring. It generally attacks persons whose bowels and secreting viscera have either been, for some time previously, in an inactive state, or become loaded by an accumulation of retained, and thereby altered secretions, particu- larly bile; and arises from exposure to the sun's rays, or to a high degree of temperature, and after- wards to cold, or cold combined with moisture, particularly when applied to the extremities ; from sudden atmospheric vicissitudes, particularly cold easterly or northerly winds after hot weather ; from cold miasmal night air, and dews, after a warm sun ; cold drinks when the body is overheated, and the incautious use of ices ; from cold, indigestible, or unripe fruits, particularly melons, cucumbers, pine-apples, and poisonous or irritating ingesta of any kind ; the excessive use of spirituous or malt liquors, and ingui'gitation ; from large doses of cathartic or emetic drugs (Henry, Diss, de Choi. Morbo. Hal. 1740.); fright, particularly from thunder (Phil, Trans. 1667.) ; and from whatever occasions a sudden depression of the vital ener- gies of the frame, and irruption of accumulated bile into the duodenum. 6. The intimate relation existing between this species of cholera, and the colica cibaria or sur- feit, in respect of their causes, and several of their symptoms, did not escape the notice of Syden- ham. Dr. Good has also remarked the similarity. But the distinctions are nevertheless sufficiently marked, and more numerous than those writers have assigned. The spasms of the extremities in the latter; the retraction of the testes, the copi- ous vomitings and alvine evacuations, with redun- dancy of bile, particularly after the vomiting and purging have continued for some time, and the more acute character of the disease, are sufficient to mark the wide difference between them. 7. In the endemic form, cholera is seldom presented to tiie observation of practitioners in northern countries. To certain districts in some southerly climates, particularly between the tro- pics, bilious cholera may be said, from the fre- quency of its occurrence, to be strictly endemic, although in a less marked degree than certain forms of fever, or dysentery, or even hepatitis. According to my own observation, and that of several friends whose range of experience has been great, bilious cholera is very prevalent in situations which are subject to emanations from decayed vegetable matter, or putrid matter of any description ; particularly from swamps, moist grounds, the banks of rivers, lakes, or canals, &c., and from foul drains or cesspools, during warm seasons, or wide and rapid changes of tempera- ture; or when the thermometer rises high during the day, and sinks low towards the night and morning. 8. Bilious cholera assumes the epidemic form, sometimes in warm climates, and not infrequently also in temperate countries. In the latter, this form of the disease manifests itself only in the months of July, August, and September, — the number of cases increasing from June to Sep- tember, when they are usually most numerous, and diminishing rapidly in October. The epi- demic bilious cholera is generally most remark- able during very warm summers and autumns, occurring after a very rainy winter and spring, or after a succession of wet seasons ; and when the days have been warm, bright and sunny, and the nights comparatively cold or chilly, with heavy dews. Owing to this state of season, the atmosphere is humid, and loaded with the miasms of decayed vegetable and animal matter; and, owing to this cause, together with the high range of temperature, the bile is secreted in greater abundance than usual, and is more liable to be- come acrid or otherwise altered (see Liver — Disordered Function of the) ; and the cool nights, particularly if the air be much loaded with ex- halations set free from the soil by the rays of a scorching sun, tend to check the cutaneous ex- halations, and determine the chief current of circulation and secretion to the abdominal viscera. The use of fruit, which is usually abundant at these seasons, also augments the frequency of the disease, by promoting the operation of the other causes. It increases the acidity of the prima via, as contended for by Bertrand and Linnaeus, renders the contents of the bowels, and the secretions poured into them, of a more irri- tating quality to the nerves of the stomach and intestinal canal, and thereby often promotes the irruption of acrid bile, which had been long pent up in the gall-bladder and hepatic ducts, and which is a great cause of irritation when it is suddenly poured into the duodenum. 9. During states of temperature and of season which favour the extrication of exhalations from the soil, the epidemic visitations of this variety of cholera are more severe. In many cases, occur- ring at these periods, the disease can scarcely be imputed to the state of the biliary secretion merely, but rather to the internal congestions occasioned by its exciting causes, giving rise to 320 C'lOLEPvA — DuR spasmodic contractions of the alimentary canal, to vomiting and purging, and to spasms of the voluntary muscles, &c. ; the bile accumulated in the gall-bladder and hepatic ducts being let loose and thrown into the intesiines only subsequently to the seizure, and owing to the vomitings and purgings wliicii usher it in. In some cases, in- deed, this irruption of bde is pravented from taking place, until an advanced stage, by spasm of the common duct, extended to it from the duodenum, as more commonly occurs in the third variety of the disorder. When the various causes now referred to combme to produce the disease, particularly in persons of a nervous and irritable tersperament, and who have neglected, for a con- siderable time before, the state of the bowels, and secretions poured into them, it cannot be a matter of surprise, that its siimptoms assume the severe form described by Sydenham. 10. Symptoms. — Bilious cholera, in whatever state it occurs, differs chiefly in its degree of se- verity. It is chiefly characterised by anxiety, and by painful and violent gripings, evidently proceeding from spasmodic contractions of the alimentary canal, taking the duodenum for their point of departure, and occasioning the continued or frequently repeated rejection of their contents by vomiting and purging. Owing to the ana- tomical connection of the great sympathetic or ganglial system with the voluntary nerves and other parts of the frame, the spasms extend to the abdominal muscles, and muscles of the lower extremities, — the testes being forcibly retracted to the abdominal ring, — and are accompanied with great pain. Tiie tongue is dry or clammy ; tiiirst is very urgent, and the urine scanty and hi^h coloured. The pulse is at fiist full and frequent ; but, as the disease continues, it becomes smaller, weaker, and more rapid. At more advanced periods, the spasms sometimes txttnd to the arms and hands. The symptoms often continue with little variation for some hours ; but, when the attack is severe, seldom witliout the patient's strength being greatly reduced ; the countennnce at last becoming anxious and collapsed ; the breathing frequent, interrupted, and laborious, and sometimes with singultus : the pulse feeble, irregular, and intermittent; and the extremities cold or clammy, with leipothymia or fainting. 11. Duration and Prognosis. — The cholera of temperate climates is seldom fatal, unless when it is more than usually ])revalent, after very rainy and hot seasons. But, when neglected or im- properly treated, especially at such times, a fatal issue may occur, but very rarely in less time than twenty-four hours. In milder cases, it may extend to two or three days, and then terminate either favo\irably or unfavourably, most com- monly the former; the vomiting, purging, and spasms subsiding, and entirely ceasing, tiie pulse becoming slower and fuller, and the countenance resuming its former expression. An unfavour able issue is indicated by a continuance of the purging and vomiting, particularly after sub- stances are taken into the stomach, a hurried, gasping respiration ; great frequency, feebleness, irregularity, and intermissions of the puis'! ; col- lapse and paleness of the countenance ; coldness and pulselessness of the extremities, wilii anxiety, and frequent fainlings, &c. In general, iiow- ever, even when left to itself, the disease operates \TION AND PaOGNOSIS. its own cure in the course of some hours; or it continues for one, two, or in milder cases for even three days, and ceases by degrees; the morbid secretions which excited the attack having been evacuated, and the irritation they occasioned having subsided. Although nature may accom- plish this without aid, yet the assistance of art is generally required to ensure its attainment. The febrile symptoms attending the early stage of the disease, unless in some instances of its epidemic prevalence, are merely the consequence of the pain, spasms, vomitings, and general commotion of the nervous system, and usually subside im- mediately these disorders are allayed. ii. Cholera Fi.atulenta, Flatulent Cholera ; XoKepa ^ripa, Gr. ; Ch. Sicca, Lat. 12. Defin. Vomiting and purging rare, some- times retchings; gripings aud spasms of the ab- dominal muscles, with great and oppressive Jlatu- lence, temporally relieved by eructations, and dejections of flatus. 13. This variety was formed by Hippocrates, continued by Sydenham, and, after having been discontinued by the majority of modern writers, who, if they at all remarked it, considered it rather as a form of colic than of cholera, was again distinguished as a species of this latter dis- ease by Dr. Good. It is very rarely met with in practice ; and generally holds an intermediate rank between flatulent colic and cholera, some- times approaching more nearly to the former. In none of the very few cases of this description which have come before me (not exceeding two or three), have I observed a natural secretion of bile ; but, on the contrary, the liver has evinced signs of gnat torpor, and the whole digestive organs have been manifestly enfeebled, long pro- tracted dyspepsia and hypochondriasis having existed previous to the attacli. 14. This form of the disease is chiefly cha- racterised by spasnis of the alimentary canal, apparently excited by acrid, rancid, and indi- gestible substances ; and by an irritating gas, either secreted from the digestive mucous surface, or generated from the decomposition of the im- perfectly digested food. (See articles Colic and Flatulency.) Tlie painful and flatulent griping is accompanied with severe spasms of the abdo- minal muscles, anxiety, occasional retchings, flatulent irritations, and calls to stool, with slight tenesmus, and very scanty, ofl^ensive, pale co- loured, and watery evacuations, with flatus. Con- siderable depression of the powers of life, acceler- ation of pulse, pale, anxious countenance, cold- ness of tiie extremities, ^nd sometimes alarming sinking, supervene, when the disease has been neglected. 15. Causes. — This rare form of cholera chiefly appears in the debilitated, and those of a melan- cholic temperament ; and is generally excited by a surfeit, by cold drinks when the body is overheated, by the use of cold or unripe fruits, particularly melons, water-melons, cucumbers, unripe plums, mushrooms, and animal poisons, especially the rank parts of bacon, or tongues, sausages, &c. wlien kept too long, or insufficiently cured ; also by unhealthy or stale fish, and by cold or mois- ture after having been exposed for some time previously to a high range of temperature. The author was very recently the subject of an attack as described above, from having partaken of CHOLERA tongue kept too long sifter having been imperfectly cured. In this case the aft\!Ction was mucli more nearly allied to ehciiera than to colic ; and this he is the better enabled to slate, from the circum- stance of having been ti)e subject of the other varieties of the former disease al difierent periods of his life. iii. Ciior.ERA SvAsyionJCA^Spasmodic Cholera; Mort de Chien. Yr.— Sporadic and Endemic Spasmodic Cholera. 16. Dtuv. Vomiting and purging of watery matters, ivithout anij appearance of bile; spatnis violent, and extending geueraltii through the frame ; speedilq followed 61/ sinking of the powers of life. 1 7. This variety of cholera may be said to be en- demic in some intertropical countries, particularly in the eastern hemisphere, where it has occasion- ally assumed, also, an epidemic form, neatly ap- proaching the remarkably fatal pestilential cholera, which appeared in Bengal in 1817, and which has subsequently spread over all Asia, Europe, and part of Atriea. (See Pestilence.) It has been very imperfectly noticed by Boniius, Cur- tis, Paisley, Sonnerat, and Girdlestone ; but its nature and treatment were very imper- fectly known, until Dr, Johnson described its symptoms, and pointed out a more successful method of cure than had previously been em- ployed. Several of the cases of cholera, which Sydenham has described as epidemic in 1669, seem to have been of the variety now under con- sideration. 18. Causes, Symptoms, &;c. — This form of cholera proceeds from exposure to cold, or to a cold, raw, and moist atmosphere, or to the night air loaded with terrestrial emanations after the prevalence of warm weather, or exposure to a hot sun ; or, in a word, it: generally results from a more intense grade of the same causes, particularly the exhalations from the soil, that produce the bilious cholera. It commonly commences with chilliness, sometimes amounting to a rigor or shiver ; soon followed by gripings, and frequent purging of a watery, slimy, or sero-mucous matter, which is sometimes thrown off with great force. To these succeed nausea and retchings, with the ejection of a watery fluid ; anxiety at the epigastrium ; spasms of a violent, painful, and tonic character, attacking the muscles of the abdomen, thighs, legs, thorax, and, lastly, the arms au'l hands ; a small, quick, and con- tracted pul-;e ,- great thirst, and immediate rejec- tion of wha'ever is taken into the stomach. As the disease proceeds, the pulse beeumes weaker and smaller; the spasms more general; the purging constant and painful, generally with tenesmus; the vomitings are renewed upon tlie ingestion of substances into the stomach : and the powers of life rapidly fail. Uiiiing this time, the fluids evacuated from the stomach and bnwels present no appearance of bile, although occasionally bile is seen in the ev;icualinns to a small extent. In the course of a few hours, the features shrink, the hands and feet become cold and clammy, the exacerbations of the spasms force out a cold clammy sweat on the face and breast ; the pulse is extremely small and weak, or nearly disap- pears ; — in a case which came before me in Africa, in 1816, the pulse could scarcely be felt four hours !rom the attack ; — the spasms as-ume more of the clonic character; and the contents of tlie stomach are now, in the more dangerous cases, Vol. I. — Spasmodic. 321 sometimes thrown off without any effort or retching. Commonly, during all this time, fascal matters, and the biliary secretions are retained, apparently owing to the exteu-ion of the spasm from the duodenum to the common biliary duct and to spastic constrictions of parts ot the co- lon ; the epigastrium and hypochondria being sore, tense, and tumid. When the disease is treated with decision, the vomitings cease ; free evacuations, with a discharge of bile, take place; and the patient soon recovers. But if neglected, or improperly managed, the powers of life fail very rapidly ; the eyes sink, and are surrounded with a livid circle ; the countenance assumes a remarkably anxious cast;, or is pule, wan, and shrunk ; and the spasms extend to the very fingers. The breathing now becomes extremely laborious; the patient is restless; and at last is carried off, sometimes in the space of ten or twelve hours. 19. Such is the progress of spismodic cholera, as it was observed by the wiiter in the years 1816 and 1817, in an intertropical climate, and as he then experienced it in his own person. About the same time, other ca-es of a milder form oc- curred, and presented the characters described as constituting the bilious variety of the disea-e, with which the writer had also been formerly attacked in this country, in the end of September, 181&, — a season of unusual vvarmtii, — when he was attended by his friend Mr. Queade. There can be no doubt that the first and thud varieties of cholera chiefly differ in degree, and in the circumstance of the latter arising, in most cases, from the operation of causes of a more intense grade than those which induce the former. But as additioiial phenoniena are developed in the latter variety, and other symptoms assume a dif- ferent or modified character, and especially as a distinct method of cure is requisite to its removal, the propriety of distinguishing it as a separate form of the disease is manifest. 20. II. Diagnosis. — This disease can be mis- taken only for the pestilentTal cholera, or for poisoning by acrid substances. The diagnosis between this and the peslileniial m-nlady is fully pointed out in that aiticle. It is often difficult to distinijuish between the different varieties of true cholera (the pestilential disease which has been very geneially viewed as a form of cholera being, in my opinion, very diffeient in all its relations from this), and the disorder occasioned by irritating poisons. Dr. Christisom, in his very able work on Poisons (p. 93.), has assigned the more rapid termination of poisoning, in fatal cases, as a ground of distinction. But he sup- poses that death from chidera occuw at a later period than it usually does ; and hence this source of diagnosis cannot be much re!iee, or with deteimination of the circulation to the liver and adjoining vis- cera, and an irruption of bile, which has become more than usually irritating, owing to its retention in the biliary apparatus, or to its formation from redundant or noxious materials accumulated in the circulating fluid (see Blood, $§119. and 120.), during high ranges of temperature, and moist miasmal states of the air. It is not very material which of these phenomena is the first to occur: probably either may precede the otiier : and even, in some cases, that both may be nearly coetaneous. It is, however, most likely that the procession of morbid phenomena described above (9 22.) obtains in the great majority of cases. 25. C. The different states of cholera may ter- minate differently from either of the ways already noticed ($$10. 14. 18.) : it may pass into inflamma- tion of the stomach or of the intestines, or of both ; it may also lapse into dysentery, or into a regular attack of gastric, bilious, remittent, or intermit- tent ("ever. The supervention of some of these diseases upon, or their association with, cholera, has been long since noticed by MonxoN and ToRTi ; and, more recently, by Jackson, J. P. Frank, and Schmidtmann ; and must be familiar to experienced practitioners, particularly in warm, moist, or miasmal climates. In many such in- stances, this mode of termination is to be imputed to the nature of the exciting causes, the constitu- tion of the patient, and sometimes also to the pre- mature arrest of the evacuations by opium, and the nejjlect, subsequently, of procuring the discharge of morbid secretions by purgatives, &;c. 26. IV. Treatment. — Demulcents, diluents, and weak broths or soups, have been very generally given at the commencement of a choleric attack, particularly of its first or common form, since the time they were recommended by Sydenham. In slight cases, and at its beginning merely, this is as judicious treatment as can be adopted. But in the more severe seizures, and particularly if a delay of two or three hours has taken place in applying for or procuring medical aid, much moie decided means should be resorted to. In such cases, it is no longer necessary lo promote the evacuation of the offending matters, which have gener.illy by this time been expelled. It is preferable, therefore, in these, and, indeed, under most circumstances — 1st, To allay the irritable state of the stomach, the spasms, and other urgent symptoms of the disease ; 2d, To remove, by appropriate means, as blue pill, diluents, mucila- ginous fluids, and deobstruent aperients and en- emata, whatever morbid secretions may be re- tained or re-accumulated ; 3d, To prevent the occurrence of inflammation of the digestive mu- cous surface, by sheathing the surface of the bowels from the irritating action of the morbid ami accumulated secretions during their dis- cliarge; 4tli, To support the powers of life when they appear to sink ; and, 5th, To re- store and promote the functions of the various emunary to repeat it once or even twice, after an interval of from three to six hours, or even longer, accordmg to the urgency of the case. If the attack require the exhibition of two or three sucli doses of calomel, little appre- hension of its ati'ecting liie mouth siiould be enter- tained, as such a state of disease admits not of the retention of the whole of it ; and, when it is neces- sary thus to repeat it, the bdiary organs will deiive benefit from it. If the first doses of opium and ca- lomel be not retained, tliey should be immediately repeated. In pletlioric or robust subjects, when the pulse is fully developed, and tlie spasms severe, especially in the third variety of the dis- order, a full or moderate bleeding may be directed ; but it should be perforcned early, and restricted to young or robust subjects. Tiiis practice was employed by Dr. J. Johnson in India; and sub- sequently adopted by numerous other practitioners, as well as by myself. 1 sliould, however, state, that I have prescribed it only for Europeans who had recently arrived in a warm climate ; but natives, or acclimated Europeans, require a dif- ferent treatment (§J 30, 31, and 32.). In slighter cases opium, if not loo early exhibited, will besufH- cient to cure the disease ; and the instances must be few, in which its use, in some form or other, can be dispensed with. Its superiority to otiier medicines in cholera has been admitted by Lix- tuEVS (Morhi Naut. Lidie rejjcatud every t'lird night, an aperient draught, or a (lose of castor oil, being taken on the morii- mus follovvjni;, for some time siibse(|uently, until the alvme functions assume a healthy stale. But if the stomach still remain irritable, it will be preferable to prescribe merely a blue pill, or the liydr. cum creta, at bed-time, and emjiluy ene- mata. 34. C. If, during the progress of disease, or when the urgent symptoms have somewhat subsided, the pulse continues frequent, sharp, or constricted, with tenderness of the epigastrium, a furred tongue, great thirst, nausea, and retchings upon substances being swallowed, and general un- easiness, we should conclude that inflammation of the stomach and upper part of the intestinal tube has come on. In this case, from twelve to twenty-four leeches should be placed upon the epigastrium, and afterwards a succession of warm poultices, the last of which should be followed by the terebinthinate fomentation already noticed. In some cases, it will be necessary, from the seve- rity of this consecutive disease, and the patient's habit of body, to bleed from the arm, previously to applying leeches. In cases where the foment- ation is not employed, sinapisms or blisters may be directed, but not until depletion has been carried as far as may be considered either neces- sary or judicious; and small doses either of hydrarg. cum creta, with magnesia or carbon, of soda, may be given every four or five hours ; or of nitrate of potash, and almond emulsion, or any other demulcent substance, with the frequent use of enemata. The termination of cholera in gastric, bilious, reniittenf, and intermittent fever, or in dysentery, and the circumstances to which I have imputed this occurrence (jS^ 18. 25.), ought not to be overlooked, but should influence our practice both at the commencement and during the course of the attack. When it has passed into these diseases, it must necessarily be treated according to the new form it has assumed. 35. An attack of cholera soon occasions great exhaustion; and sometimes so great sinking, that even fatal syncope has occurred froin allowing the patient to remain too long on the night-chair, or suddenly to assume the erect posture. In severe cases, the patient must be kept in a hori- zontal position ; and besides the medical treat- ment already prescribed in this state of the disease, mild demulcent soups, beef tea, chicken broth, jellies, and sago or arrow-root, with wine, may be given him. In cases of this description, the exhibition of aperients by the mouth must not be ventured on during convalescence, at least not for several days ; and even then with circumspec- tion, and in conjunction with stimulants or tonics. We must endeavour to regulate the secretions by gentle alteratives, and to procure their discharge by enemata. During convalescence from cholera, strict attention should be paid to the state of the digestive functions. The patient ouv;ht to abstain from all irritating and indigestible kinds of food, and heating liiiuors, and from overloading the stomach. Change of air, gentle travelling, and moderate exercise, are extremely conducive to perfect recovery. BiBLiot;. AND ilEKER. — Nippocfates, Epici. v. 114t. 11. W. — J'iilie, Krgo Clioloiac Morljocoiiveiiit Venaesectio. Paris, l()'2t — Buntiiis, Med. Indor. cap. (!. — lialloniits, Opira, vol. i. n. .'i.'j. bl. vol iii. ii. Gh —lieidlin, Lin. Med. p. 'iii. tO'J.'j Mnrtiin, Pvri'tolonia, sive de Morb. Acut. &c. pp. .V>— 40. i:i3. 4to. H.'JO. Geiipv. edit — Uianchi, Hist. Hcpatica, p. \\7. — JIu(fmann, Oc. Cholera, Opp. vol. iii. p. 174.— Tuiif, Therap. Special, ad Fehres Peiiol. Pfr- nici()sa.s,&c. 1. iv. c. i. p. 250. 4to. I'^ranc. n^G.—JIcbeirien, TraiLS. ol Colt.of Pliys. Lnnd. vol.ii. p. i'yi.—I'urttr, Kd. Med. Kssays, vol. iii. p, a.')7. — iVo//, Hat. Med. part iii. CHOLERIC FEVER OF INFANTS — Sympjoms. 325 p. 64— /-/■«(/, On the Dip. of Hot Climates, &c. p. 248. — Cul/en, Works, ed. l>y Thomson, 1827, vol. i. p. 301., and vol. ii. p. 476 Dick, in Medical Comment, vol. x. p. 12. Jackson, On Febrile Diseases, vol. ii. p. 27. 8vo. Lond. 1820. —J. P. Frank, De Curand. Homin. Morb. lib. v. part ii. p. 436. — Ilichlz-r, Die Specielle Therapie, b. iv. p. l.'J7. — J. Johnson, Diseases of Intertrop. Climates, p. 270. 4tli ed Chisho/m, On Dis. of Trcjiical Countiies, Ac. p. 85. Svo. Lond. 1822. — Sihmidtmann. Sinnma Ob- servat. Med. vol. iii. p. 403. Ber. 1826 — Hope, in Ediii. Wed. and Surg. Journ. vol. xxvi. p. 41. CHOLERIC FEVER OF INFANTS.— C/io- le.ra of Children, Cholera Infantum, Rush and Dewees. Classif. — III. Class, I. Order (Author). 1. Defin. — Vniniling and purging, uilh Jeter generally of a remittent type, irregular spasmodic convulsions, and rapid enuiciution, attacking in- fants and children. 2. I. IIisTOKY, iScc. — This disease attacks children duiing the summer and autumnal months, and sometimes as early as April and*]\]ay. It occurs at any period, from the age of two or/hree weeks to that of several years. After this age, the same causes which produce it occasion, ac- cording to their combinations and the state of predisposition of the patient, either fever of some kind, or cholera, or inflammation of the stomach and bowels. 3. A. Causes. — It is often independent of any [ disorder from dentition, as shown by the age at ' which it frequently occurs, and the seasons to which it is almost entirely limited. That it is not always caused by acid, acrid, or stale fruit, and indige-tible substances, has been proved by ex- amination of the history of numerous cases;! although, doubtless, this cause, as well as den- j tilion, will contribute to its occurrence. It is I certainly not owing to worms, as far as my own j observation may be depended upon ; besides, it is often met with at an age anterior to that at which worms form in the intestinal canal ; and, in fatal cases, worms are not more frequently expelled from the bowels than in many other di-^eases, as remarked by Dr. Rush. But it is evidently owing to the influence of high ranges of atmo- i spheric temperature acting upon malarious locali- ^ ties, and upon close, low, thickly inhabited, and imperfecily clean.sed and ventilated streets, closes, \ and lanes, assisted by the above causes, particu- ' larly by premature weaning, want of the mother's ; milk, errors in diet and clothing, &c. That it originates chiefly in an atmosphere loaded with putrid or mephitic effluvia, is shown by its occur- ' rence amongst children thus circumstanced ; by its frequency during the seasons already specified in temperate climates, particularly in localities which , possess the materials or sources of such exhala- tions ; bv the periods of its prevalence among children in warm climates, and in America ; and by its appearance at the same time with the cho- lera of adults, and with remittent and intermittent fevers. This origin is further shown by the cir- cumstance of its being generally accompanied with fever, frequently of a remiitent type. In some very unhealthy climates within the tropics, the children born of European parents seldom reach two or three years without having an at- tack ; and, in some places, scarcely one will s'irvive this age, if allowed to remain in them, — this disease cuiting them oft' before they reach a year or two, and often when they are only two or three weeks old. According to Dr. Dkwees, it is one of the most fatal diseases of children in the laroe towns of the United' States ; and it is cer- tainly not an infrequent malady of the same class of patients in this metrojiolis. 4. B. Si/mptoms. — The choleric fe^er of infants, sometimes begins with diarrlioea ; •but.iiiore com- monly with violent vomiting and purging, which are soon followed by lever. The matters vomited are usually yellowish or greenish yellow ; and the dejections are slimy, watery, someiimes offensive, with a scur or putrid odour, and tinged with ' blood. 'J"he natural faeces are generally retained, although small lumps are occasionally passed. In some cases, at an advanced stage, they consi-t nearly altogether of water, or of substances re- cently taken. The muscles are irregularly and spasmodically convulsed or contracted ; the child is much pained, is restless, anil throws the head backwards and forwards, the lower limbs being forcibly drawn upwards. Thirst is intense and unquenchable, cold fluids being eagerly desired. The pulse is smalt, quick, and feeble. Deter- mination to the brain is soon sympatlietically excited, as evinced by increased tempeiature of the head, and a tendency to stupor. 1 he extre- mities are commonly colder ihan usual ; and the abdomen is hot. All the febrile symptoms are exacerbated in the evening, and occasionally at- lent commonly the case, in infants under a twelvemonth, the diet should consist, at the commencement of the attack, exclusively of the mother's milk ; or when it has been recently weaned, a healthy wet-nurse should V>e procured. If, however, the child will not take the breast, small quantities of diluted sweetened milk may be given, or thin rice or barley-water, with some gum added to if. Be- sides these, soda water, marsh-mallow tea, and the water poured ofl' an infusion of toasted oatmeal, or oat-cakes, may be also tried. In the latter stages of the complaint, the usual farinaceous aliments may be allowed. Dr. Rush attributes much importance to the moderate use of salted provisions at this period, and of port wine ; and I CHOREA — Symptoms. 327 have had occasion to know that both of these arc often extremely beneiicial when properly re- stricted. I believe that the want of a sufiicient quantity of salt in the food of children, in climates . and states of the air requiring this condiment, is often concerned in the causation of the dise.ise. For no malady is change of air more necessary than for this. The child should be removed from the crowded town to the open country ; an elevated, dry, but not bleak, situation being selected. Re- moval to the sea-side is also very beneficial ; or, when a more complete change cannot be enjoyed, a close, low situation, may be exchanged, even loP a time, for one that is more open and elevated. 15. b. The prophiilartic measures may be briefly stated to consist of allowing the infant a healthy breast of milk till it is a year old; of wearing flannel next the skin, and keeping tlie lower ex- tremities warm •, of regulating the diet, and avoid- ing excess in fruit, and the use of unripe, over-ripe, or stale fruit ; and of attendmg to the state of the gums during the period of dentition. BiBLMG. AND Reper. - TJmiA. Medical Inquiries aid Observations, p. 131 . 2d ed. — Valenlhi, in Jourii. Gt'n. de Medecine.vcd. xxlx. p. 459. — Dewees,0\\ the Pliysical .ind Med. M inagementof Children, &c. Lund. ed. 8vo. p. 443. 182G — Parn'sh, On the Prophylactic Treatin"nt of Cho- lera Infantum, Sec, North Amer. Med. and Phys. Journ. July, IH26. — Billari/, Traite des IMaladies des Enfans Nouveau-nes a la Mamelle, &c. 8vo. Paris, 1H28, p. 414. CHOREA. SvN. Chorea Sancti Vili (from Xop^a, a dance with singing); Saltns Vili, Chorea Sli. Modesti, Choreonmnia, Baltiimus, Orchestromania, Epilepsia Saltaloria, Auct. Var. Choree. Fr. Der St. Veitslanz, Ger. Classif. 2. Class, Nervous Diseases; 3. Order, Spasmodic Disorders (Cullen). 4. Class, Nervous Affections; 3. Order, AflxiCting the Muscles (Good). II. Class, III. Order (Author, see Preface). 1. Defix. — Tremulous, irregular, involuntary, and ludicrous motions of the muscles of voluntary motion, more marked on one side than the other, without pain, occurring in both sexes, more fre- quentlif in the female, and chiefly between eight and fifteen xfears of age. 2. This disease was formerly called the Dance of St. Guy by the French, and of St. Weit by the Germans, from the circumstance of it being so prevalent in Swabia, and other piirts of Ger- many, during the fifteenth and sixteenth cen- turies, that patients crowded to a chapel near Ulm, dedicated to this saint, who had, by the aid of the priests, obtained great celebrity in its cure. It appears to have been known to the ancients ; for the Scelotyrbe of Galen very nearly resembles it. The earliest writers, since the revival of letters, who noticed this affection, are, Plater, IloRSTius, and Sexneut, under the name of Chorea Sti. Viti. In 1560, Bairo, physician to the Duke of Savoy, mentioned it under the name of " Inilispositio Saltuosa Membrorum." But Sy- denham was the first author who accurately described it. 3. I. History, &c. — A. Symptoms. — The patho- gnomonic characters of chorea consist in disordered movements of p-.irts actuated by the voluntary order of nerves ; the functions of volition and of muscu- lar action being deranged analogously to the ma- nifestations of the mind in mental alienation. The disordered movements vaiy very considerably, in respect of the number of parts affected, aoc* of the intensity of the afl^ection : hence it ir,ay be 328 partial or general, slight or severe. It is more frequently partial than general, and is ver}' often contined lo the mui^clts of one side of tlie body. 'Ihe description by Sydenh^im has been copied with little alteration by many authors; and, althougli extremely accurate in respect of some states of liie disease, it by no means embraces all the varieties: tliat by Dr. Hamilton is, upon the w hole, the best, particularly as respects its fully developed form. 4. Tiiis affection is often preceded by more or less marked disorder of the ori^anic functions: the appetite is variable, the digestion imperfect, the bowels costive, the abdomen tumid, and the vivacity and physical activity diminished. To tiiese are frequently added timidity, fretfulness, desire of solitude, sighing, palpitations, concealed mental aflection, &c. These symptoms of dis- ordered health are followed by slight, irregular, and involuntary twiichings of the muscles, par- ticularly those of the face. These motions increase, assunie tiie form of irregular clonic and continued convulsions, and are often attended by increased hardness, or tumefaction, of the lower regions of the alidomen, and consti(iation. Owing to the irregular convulsive motions of the lace, jaw, head, and neck, of tiie trunk and extremities, and from the circumstance of these motions taking place at different times, the patient has a jumping, starting, or palsied walk, and cannot perform the usual occupations of the extremities with the steadiness and regularity of health. The characieiistic motions vaiy in degree ; but they are always present during the continuance of the disease, excepting while the patient is asleep, when, in most instances, they altogether cease. 5. Different muscles are sometimes successively aflPected ; but those fiist convulsed still continue so untd the termination of the disease. When the affection is fully formed, aiticulation is im- peded, hut seldom completely suspended. De- glutition is often ditficult ; the e\es lose their lu>tre and expression; the countenance becomes pale, languid, vacant, and, in the severest and most pro- tracted cases, conveys the idea nf imbecility, or even of fatuity. In the course of the disorder, the muscles seem much more soft and flaccid ihan na- tural,andemaciation lakesplace ; vertigo and luad- ach are often complained of. Tiie pulse is a little accelerated ; the bowels are always constipated, and the urine is usually pale and copious. The tongue and gums aie pale ; the former being occa- sionally protruded, irregularly and spasmodically. In some of the severest cases the mouth is va- riously t\vistes are disiorted, or rolhd in various directions, and the sight is occasionally defective. 1 he disposition and temper are un- stable or irritable ; the mind is often liarassed by various concealeil mental impressions and ideas ; and the emotions or desires nve variously excited, without any sufficient or apparent cause. In some cases, deglutition is much impeded, and fluids are forcibly thrown up from the pharynx in attempts at swallowing them. Bmint and I'imnk state that the urine and fa-ces are occasionally passed involuntaiily during the height of an attack; but this rarely oicurs in simple chorea. There is seldom any pain complained of, and, although the movements cease during sleep, yet the rest is oiten disturbed. CHOREA— History of, &c, 6. Such is the state of the fully formed dis- ease ; but it presents endless varieties, sometimes insensibly lapsing into hysteria, in other cases appioachiiig to paralysis ; now scarcely to be dis- tinguished Irom convulsions ; in one instance le- sembling taraniulism, and in another being closely allied to paialjsis tremens. In some cases, the muscles of the face and neck are more affected than those of other parts; whilst in others, those either ot the upper or of the lower extremities, or of one limb only, are most convulsed. 7. B. Duration, complicntinns, and terminations. — a. The(/i/)«fa)« of thisafl\^ction under treatment is various — irom two or three weeks to seveiul months: the most common duration being lr(.m one to two months. The shortest period of treat- ment, in the cases which have occurred to me, was eleven days. Relapses, are, however, not infrequent. I have seen the affection to return thrice in the same patient. — /). Chorea is very fre- quently assoc/uterf with other disordeis : in females vviih chlorosis, retention or suppression of the menses, anaemia, hysteria; and, in males, with rheumatism, with paralysis, disease of the head, and dropsical effusions in the serous cavities. — c. It also not infrequently teiininuies. in these, and in convulsions, epilepsy, anajmia, dropsy, palsy, hydrocephalus, and complete idiotcy. A return, however, to health, is its most common issue. In a case related by Dr. Elliotson, it terminated in apoplexy ; and Dr. Brown refers to three instances in his practice, where it termi- nated in violent convulsions, with cerebral sym- ptoms, coma, and death. 8. Its complication with rheumatism, rheumatic pericarditis, and disease of the membranes of the spine, was first demonstrated by the writer, in a case, the post mortem inspection of which is detailed in the fifteenih volume of the London lAJedical Repository ; the connection having been subsequently confirmed by Dr. I'richard and by Dr. RoEbER, who have met with similar cases. The association of chorea with hysteria is very frequent about the period of puberty ; and when the former occurs, after this term. Indeed, the majority of cases exhibiting choreal symptoms at or subsequently to the epoch of puberty in the female, partake more or less of the hysterical chaiacter — in many instances to the extent of appearing as a modified form of hysteria, rather than as chorea : and upon strict inquiry, some irregularity is generally det( cted in the accession or subsequent occurrences of the calamenia. Females who are attacked by, or have been sub- ject to, chorea anterior lo ilie period of puberty, occasionally exjierience at this age retention or |iost]jonenient of the catamenial discharge ; or, if this secretion at all appears, it is scanty and at irregular intervals. I^oih the chorea and disorder of the caliimenia evidently depend upon a similar condition of the vital manifestations of the oiganic nervous system, and chylopoietic viscera. 'J he following jjrocession of morbid phenoniena is not unconimon : chorea with defective action of the digestive, assimilating, and secreting functions, and torpor of the liver ; at a subsequent teim, protracted calamenia, or scanty and irregular ap- pearance of the secretion, occasionally with va- rious hysterical affections, seldom amounting to a complete fit of the hysteria ; and, lastly, when the catiimcnia become established, the hysterical af- CHOREA fection is sometimes more fully pronounced ; and, ' with the regular e^lablisiimenl of the uterine functions, the chorea ease to which the name chorea was originally given ap- proached nearer this latter description, but pre- sented no uniform character, — various nervous disorders, very diffeient from each other in many of their essential symptoms, and pathological states, as the nervous afi'ections resulting from the bites of the tarantula or other insects, irregular forms of hysteria, and convulsion, receiving this appellation; and, even at piesent, many irre- gular forms of convulsion, particularly those of a clonic kind, are often conlounded with cliorea. I'he only other disorder for which it may be mis- taken is paralysis tremens, which occurs at a later period of life than chorea, is generally moie li- mited to a single limb or part of the body, the movements being more of a tremulous than of a spasmodic kind, and to a mtich less extent, and not partaking of the starting, jumping, twitching, and ludicrous character, possessed by those of chorea. 11. b. The Prognosis in the simple or uncom- plicated state of chorea is generally favourable. 15ut when it comes on after attacks of iheuma- tism, or in conjunction with this disease ; if it follow the disappearance of the acute or chronic exanthemata and eruptions, or arises from injuries of the head, or from manustupralion ; if it be as- sociated with epileptic convulsions, or with more or less complete paralysis of some linib or pait; and if siyns of anremia, chlorosis, dropsical effu- sion, affection of the functions of the brain, or idiotcy, manifest themselves, an unfavourable, or at least a cautious, ojiinion of the result should be ofl'ered. It would seem that the diseiise is more severe, or niore frequently complicattd in large cities, or in some places, than in others, lor the very difl^erent results of practice cannot other- wise be well explained. Dr. Park states, tiiat in about sixty cases, in which the treatment very generally employed by other physicians was re- sorted to, all recovered, and only two had relapses. I have met wiih thiee or four fatal cases; Dr. I'riciiard has recorded four; Dr. Bromn re- fers to three in his piactice; and 1 have occa- 330 CHOREA— Causes— Nature of. sion to Know tliat a similar issue is not rare in cases occurring both in London and in Paris. 12. III. Causks. — A. PredisjMsing causes. — Cliorea is much more frequent in the female than in the male sex. Accordino; to the experience of He- berden.Thilenius, J. Frank, Reeves, jManson, Elliot^on, and mvself, three of the former to one of the latter are affected by it. The most com- mon period of life is from seven years to fifteen — from second dentition to puberty ; but no age is entirely exempt from it. M. Bouteille met with it in a lady of 80, complicated with hemi- plegia ; Dr. Powell and Dr. IMaton, in females of 70 ; Dr. Crampton, in a female upwards of 40. I have seen it in a man upwards of 50 ; and cases sometimes occur as early as five or six years. The nervous temperament, and great sensibility of the nervous system ; hereditary dis- position ; constitutional debility, from whatever cause, either from original conformation, or from bad or deficient nourishment in early infancy, particularly an insufficient supply from the mother or nurse's breast, or total deprivation of this nutriment ; efFeininate education, and premature exercise of the mental powers; precocious excite- humour aflectiug the nerves. Sauvages, Cul- len, and many others, ascribed it to general debility, attended by unusual mobility of the system ; and several writers, among whom I may notice BouTEiLi.E, Clutterbuck, Serres, J,is- franc, &c., to inflammatory action of some part of the cerebro-spinal axis ; thus viewing it as in- timately related to paralysis. Dr. Hamilton attri- buted it to disordered functions of the bowels, af- fecting the muscular actions sympathetically ; and a very large number of writers, to debility, derang- ing principally the nervous and muscular systems ; the torpid states of the organic functions being a related or associated manifestation of disorder. 15. A. The exact sent, as well as nature, of the disease, can be inferred with accuracy only from attentive observation of the causes in relation to the states of the system at its commencement, of the phenomena in its course, and of the struc- tural changes existing in cases which have ter- minated fatally. The writer was the first who demonstrated, by post mortem research, inflam- matory appearances of the membranes of the spinal chord ; but he cannot on that account infer that the disease is owing to that cause. In- ment of the desires and affections ; debility of the i deed, in the case in which he observed it, the digestive and assimilative viscera ; neglected state of the bowels, leaUng to accumulations of de- ranged secretions in the prima via ; torpiil function of the liver, and other secreting and assimilating organs ; cold and moist climates; confinement or sedentary occupations in low, unhealthy, or crowded places ; low or innu'ritious diet, espe- cially vegetable food ; impure miasmal air ; want of personal cleanliness; and the rickety, scrofu- lous, and rheumatic diathesis, constitute the chief predisposing causes of the disease. 13. B. Exciiiiig causes. — These are not often readily ascertained. The mo^^t common are th.e irritation of worms or of morbid matters accu- mulated in the bowels (Stoll, Baldinger, Wendt); and fright. Dr. Reeves and Rlr. Be- DiNGFtELD State, that the great majority of cases which they treated was attributed to fright ; and a nearly similar statement is made by Stoll and EcKER. Injuries affecting some parts of the nerv- ous system especially, as (alls upon the head and back (Geash, Frank) ; the improper employment of lead, mercury, &c. (De Haen) ; suppressed eruptions, discharges, Ike. (Tiiilenius, Darm'In, and Wendt), particularly tinea capitis, iich, herpes, perspiration of the feet, &c. ; metasiasis, or extension of rheumatism to the membranes of the spinal chord (Ploucquet, Copland, Pri- charo, &c.) ; previous disease, especially the erup- tive fevers, epilepsy, hysteria, and mental disorder (Sallaba); second dentition; suppressed dis- charges; anxiety, the dread of impending occur- rences, concealed mental impressions and moral emotions, and the influence of imagination ( Dar- win, IIavoartii), pariiculaily morbidly exercised imagination in connection with sexual desire ; fre- quently excited jealousy and envy; masturbation, and retained, oi diflficult, or sup])re-sed menstru- ation, particularly if occasioned by this practice (RiciiTER, &C.), and cold long endured, — are all occasionally exciting causes of the disease. 14. IV. Nature OF THE DisEA-^E, — Opinions as to the yiatholotiical state originating chorea have been extremely various. Sydenham considered affection of these membranes was recognised, doling the life of the patient, as a contingent lesion arising froin metastasis of the rheumatism with which it was associated. M. Serres, having found disease of the corpirra qitadrigemina in four cases, considers these bodies as the seat of chorea, and thinks the results of his experiments, and of those of MM, Flourens and Rolando, on the functions of this part of the brain, counte- nance this opinion. Other pathologists, particu- larly RIM. I3ouii.LAUD and Majendie, conceive that it is seated in the cerebellum, because the functions which they ascribe to this organ are chiefly affected — the disease, in their opinion, consisting of disorder of the actions of this part. If we reflect that a number of disorders, more or less resembling each other, have been considered as chorea ; that these, as well as chorea itself, are often complicated with, or run into, other aflfec- tions of an organic or inflammatory kind; and that it is never fatal excepting in consequence of its consecutive and associated changes, especially those afl^ecting the brain and spinal chord ; the diversity of lesion observed afier death, and of opinions derived from this source chiefly as to its seat, will not appear surprising. 16. I think that chorea, in its simple stale, occurs most commonly in persons whose vital powers are depressed, the whole circle of vital organs performing their functions imperfectly, and thereby occasioning increased su'^ceptibility of the nervous system. This state constitutes the aptitude to be affected by the exciting causes of this disor- der ; whether those acting directly upon ihe brain, through the medium either of the mind itself or of the senses, as terror, fright, mental impres- sions, moral emotions, &c.; or those which in- fluence indirectly the cerebro-spinal nervous system, by irritating or otherwise disordering the organic nerves, as worms, morbid matters in the prima via. 1"he susceptibility of the frame having been induced, either class of causes may occasion the malady, — the former, by changing the condi- tion of those parts about the base of the brain i( as a sj)ccies of convul-ion, occasioned by u which direct or influence the functions of the spinal CHOREA AND RELATED AFFECTIONS — History or, 331 chord, and, tliiougli it, of the voluiitnry muscles, - — the latter, by disordering the functions of the organic nervous system, and thereby atfeeting, through ihe medium of the brandies communi- cating with the ganglia placed on the roots of the spinal nerves, the nerves of voluntary motion: occasioning, by reflected sympathy, the irregular muscular movements constituting the disease, in the same manner that irritation of the visceral nerves produces the automatic movements of the foetus in utero* In such cases, the disorder of the organic nerves may be extended, by means of the sympathetic, to the spinal nerves either of one side only, or of both, as well as to the nerves and parts about the base of the brain, disease being also subsequently induced in those parts of the brain or spinal chord in which they originate. According to this view will readily be explained the frequent connection of chorea with hysteria and uterine disorder, as the patient advances through the period of puberty and adolescence, as well as the disappearance of the disease alter the development of the sexual organs, and the healthy establi-hment of the uterine functions — events intimately related with and necessary to, the due manifestation of vital energy throughout the frame. 17. In other words, therefore, the proximate cause of chorea, in its simple and true form, seems to consist of debility, with some degree of irritation of the organic or ganglial class of nerves, extended more or less to those of volition, and oc- casioning morbid susceptibility of the nervous sys- tem, generally, with diminished power, increased mobility and irregular action of the muscular system, particularly of those muscles supplied with the nerves principally aiTected. Whilst this appears to be the pathological stale of the majority of cases of chorea, yet instances not in- frecjuently occur in which disorder evidently com- mences in the spinal chord or its membranes, disturbing the functions of the nerves issuing from the affected part. In many cases the lesion of the chord and of its membranes is occasioned by irritation propagated to the roots of the voluntary nerves ; but in those which are connected with rheumatism, as well as in some otherwise related and produced, the mischief evidently originates in the membranes of the chord itself. When, bow- ever, the disease commences in the organic nerv- ous system, affecting the voluntary nerves only secondarily, pain is not complained of upon ex- amining the spinal column; but when it is seated in the chord or its membranes, pain or uneasiness is felt in this situation, and the disordered motions are more or less limited to particular parts. When the original cause of mischief is seated in the biain, or when the cephalic organs become con- secutively diseased, the affection partakes more of the characters of true convulsion, either with or without hysterical symptoms, but most commonly with such phenomena. 18. V. Of nervous Disorders resembling Chorea. — Whilst true chorea, according to the application of the term in recent times, seems to originate in the organic nerves, and to disturb the functions not only of the voluntary nerves, as ex- * Since this was pubti-hed in .September, 1S32, Dr- Hall's paper on the reflex function of the spinal chord appealed in the F/n/osuphical Transactions, it having been read to the Royal Society in June, 1S33. plained above, but also of those parts of the cerebro- spinal axis in wliich they originate; the affections, 1 am about to notice, most commonly depend upon a disordered state either of the mind, or of some of the parts within the cranium, and are often attended by more or less affection of the generative and digestive organs. The disease to which the name Chorea Sti. Vili was first applied, very nearly resembled that produced by the bite of the tarantiita, as it is described by Baglivi and Sauvagts ; and, if the description of the former disorder, furnished by Schenck, Para- celsus, and Felix Plater, had not been con- firmed by the more accurate observation of modern practiiioneis, it might have been viewed as greatly exaggerated, if not entirely feigned. — a. The chorea of the writers of the sixteenth century appears to have consisted of inoidinate muscular exertions and movements in regulated measures, proceeding t>om an irresistible mental impulse, excited by the influence of music or imitation on the mind. IIorstius states, that it some- times recurred annually at the same period ; and that the sound of music often increased it to a state of phrensy, thiise affected continuingdancing for an incredible long period, in a most excited manner. It appears to have consisted cliiefly of a sort of lascivious dance, kept up an uncommon length of time until the impulse to excessive muscular motion was subdued by exhaustion, and has not inappropriately been called Morlnis Salta- torius and Epilepsia Sultatoria by later wi iters.— h. According to the account given by Baglivi and Sauvages of the effects of the bite of the taran- tula, the patient is seized, a few hours after the injury, with difficulty of breathing, anxiety, and sadness. The violent symptoms of the fiist d;iys are succeeded by a peculiar melancholy, which continues until, by darning or singing, it is at last entirely removed. Persons thus affected frequent churchyards and solitary places, lay themselves out as if they were dead, evince the utmost de- spair, howl and sigh, assume various indecent attitudes, run about, or roll themselves on the ground, and are either pleased with or dislike par- ticular colours. Slionly after being stung, they fall down, deprived of sense and motion, either breathing with difficulty and sighing heavily, or lying as if quite dead. Upon the sound of music they begin to move their fingers, hands, feet, and successively all the parts of the body, sighing, dancing, and assuming a thousand fan- tastic gestures. Ihey continue these motions for several hours, until they are exhausted, and covered by perspiration ; but they return again, after some repose, to this violent exercise, which is kept up for ten or twelve hours each day, during four or five, but seldom so long as six days. This afl'ection has received various names frcim continental writers, amongst the chief of which are tarantif,mus, tarantiilismvs, Choreomniiia, Me- lancholia saltans, Chorea Sti. Joliannis, Chorea ift. Valenlini, and Diemojwmunia. 19. According to the above account of both affections — the original chorea ui the Germans, and the taraiitismas of Sauvages — there appears to be but little difference between the latter, at its advanced or second stage, and the former. It is very difficult to believe that the whole, or sit least the gieattr part, of the phenomena in both these affections was not feigned. It i«, however. 332 CHOREA AND RELATED AFFECTIONS —Treatment of. admitted, that tlie poison of the tarantula spider is most successfully counteracted by the exciting influence of music on the mind, and the profu-e perspirations produced by continued dancing. A writer in the New Yo>-k Medical Repositoiy detAlh an instance of a convulsive disorder occasioned by the bile of a spider, and cured by music. Mr. KiNUEii Wood has lecorded a case, which ori- ginated in disoidered menstrual function, with cerebral symptoms and painful affections of the nerves of the tace, that resembled in every respect the malady to which the German physicians gave the name of chorea. 20. The dis irder, also, which has usually been called the " Leaping Ague" in .Scotland, seems to be very closely allied to the original chorea. It is described very nearly as follows by a writer in the Edinburgh Medical and Surgical Journal: — Those afl^ected first complain of a pain lu the head or lower part of the back, to which suc- ceed convulsive fits, or fits of dancing, at certain periods. Dating the paroxysm they distort their bodies in various ways, and leap about in a sur- prising manner. Soinetimes they run with great velocity even in dangerous places, and when confined, climb or leap from the floors of the cot- tages to ilie rafters, or swing by, or vvhiil around, one of them. I'hey olten dance or leap about with greater agility, vigour, and exactness, than they are capalde of exerting at other periods ; the affectim apparently consisting chiefly of a morbid and irresistible propensity to dance, tumble, and run about in a fantastic manner. Cases of this form of disorder have been detailed by Tulpius, PliNADA, ReII,, BniiCKMANN, WeSTPHAL, (JlUCIi- TON, FiiDAGNEL, Laurent, and others. In M. Piedaonel's case there was a propensity to run forwaids until the patient, a man, dropped down exhausted. On examining the brain after death, tu- bercles were found pre>sing on the anterior part of the hemisphere. A similar instani:e occurred in the father of a medical friend, and terminated in paralysis. The subject of JM. Laurent's case was propelled backwards with considerable velocity. 21. Dr. Watt has given ihe history of a dis- order, which he has called chorea, or periodical jac- titation, in a girl of ten years, that was preceded by excruciating headach and vomiting. To this affection of the head succeeded the propensity to turn round in one direction on her feet with great velocity like a spinning-top. 'i his propen- sity subsided alter having continued above a month, but was followed by an exasperated re- turn of the headach, and loss of power over the muscles of the neck. She was afterwards seized by a diflerent kind of motion, occuring in fits, which lasted daily, from two to thiee, to six or seven hours ; this consisted in placing herself across the bed, and rolling lapidly round on her sides from one end of it to the other. When laid in the shallow part of a river she rolled around, although at tiie point of being drowned. 'Jhe afl'usion of cold water did not slop the rotations, which were about sixty in a minute. In a little more than a month these movements were re- placed by others of a different kind. She now laid herself on her back, and drawing her head aiid heels towaids each other, raised her trunk, afterwards falling with some force on her back by stiaightening her boily. '1 hese motions weie le- pealei! ten or twelve limes in a minute, were con- tinued for about five weeks, and were then fol- lowed by the propensity of standing upon her head. Having raised her feet perpendicularly upwards, she fell down as if dead, but instantly placed herself on her head as before, again fell, and continued to repeat these movements for fif- teen hours a day, and as rapidly as twelve or fif- teen times a minute. The affection had resisted emetics, cathartics, local depletion, blistering, setons, 6cc., but disappeared after a spontaneous diarihoea. Dr. Watt refers to two similar cases which had come to his knowledge ; and another instance has been adduced by the writer, under the des gnalion of " Inquirer," of an instructive article on the subject, in the third volume of the EdinhurgJi, Medical Journal. Mr. Hunter has also given the particulars of an instance of rotatory affection resembling chorea, in the twenty-third volume of the same work. 22. Dr. RoBEiiTsoN has described a peculiar form of convulsion, in many respects like chorea, which spread at one time (1800) as an epidemic amongst a sect of religious enthusiasts in the states of Tennessee and Kentucky, evidently from the influence of imagination and irritation on morbidly excited minds. The seizure was violent, and dis- tinctly convulsive at the commencement, but it usually passed from this state into one more chrome, and more nearly approaching chorea. Persons thus affected are desciibed by Dr. Robert- son as being continually interrupted in their con- versation by the irregular contractions of the muscles, and as having no command over these contractions by any effort of volition ; lying down in Led does not prevent them, but they always cease during sleep. Remissions and exacerbations are Common, butoccur without regulaiity. During the remission, a paioxysm is often excited by the sight of an affected person, but more frequently by shaking hands with him. The sensations of the patient during the fit are said to be agreeable, and are expressed by the enthusiastic by laughing, shouting, dancing, &c., followed by fatigue, and a sense of geneial sorenes^. The affection at latt becomes slighter by degrees, and finally disap- pears. Cases of similar nervous disorders, and apparently intermediate between chorea and con- vulsions, and often partaking of many of the features of hysteria, as well as the affection called Mullealio, have been detailed by Tulpius, Hohs- tius, JMoruagni, WicHMANN, IVJagenuie, and ollieis above referred to (J 20.). It is difficult to believe, however, upon perusing the particulars of the foregoing cases, that they are altogether the actual plienomena of disease. It is very probable that the morbid affection of mind — thedisuideied state of the desires, or of the mental impiessions, — exalts the derangement of the nervous sjsteni to that singular pitch, of which these cases are rate examples. (See arts. Convulsions, and II vs- TEI'.IA. 23. \"I. TiiEAiMENT. — A. Conspectus of the treatment. — Purgatives have been iecimniend(d in chorea by Svoeniiam, Wiivtt, 11 a mu, ion, CnEYNi-, and others. Svdenhaiv], however, did not coniide the cure of this affection to them en- tirely, (or he also directed occasional depletion, with tonics, in the days inteivening between the exhibition of the purgatives, and narcotics at Led- tiiiie. ]''.niiiieniigogiies, particularly aloes, myrrh, as.afatida, iullaboie, savine, castor, the melissa CHOREA AND RELATED AFFECTIONS — Treatment of. 333 ofKcinalis, tinctura ammoniae composita, saffron, bi-l)oiateof soda, &c. Iiave been vei-y properly pre- scribed by RiCHTER, SciiMiDTMANN, 311(1 sevcral otlier Germaa writers, particularly when the dis- ease occurs about the period of puberty, and is con- nected with hysteria, or dsorder of the menstrual discharge. Antlielmintics are the chief medicines advised by Hufki.and and Tiiilemus. Watt and Sallaba viewed the disorder as po-sessing an inflammatory character, and therefore directed for it the antiphlogistic regimen. Tunics have found supporters in Dover, Werlhoff, Maiion, Eck- stein, Hildebrand, Ei.LiOTsoN, and many other writers. But they do not agree in the iiind of tonic wliioh should be emjiloyed : thus Hilde- BR.VND prefers the sulphuric and mineral acids ; Werlhoff and Maiion, the cinchona bark ; Grif- fith prescribes the bark, with the bi-carbonate of potash. Eckstein, Wendt, and Elliotson re- commend the preparation of iron, in preference to otiier tonics. The Jixed alkalies have been noticed favourably by VVendelstatt ; and the mineral springs at Ems by Brijckmann. Sir Geo. Baker, Nagei, and RJichaei.is prescribed the flowers of the cardamine pratensis ; the latter in doses of a drachm every six hours. The leaves of the Seville orange tree, in tiie form of powder, decoction, or infusion, were much praised by De IIaen, Westerhoef, Werlhoff, and En- gelhard. Tiie arnica montana received the cornmendalion of Theussink ; and the chenopo- diiun amhroisioides, that of Plentk and of Ecker,. 24. Narcotics and sedutives have also been pre- scribed in this affection. The inspissated juice of the root of the belladonna was employed in doses of one sixth of a grain, with apparent advantage, by Stoll, Lentin, and Ketterling. Stoll, liowever, directed at tiie same time friction with a liniment compo-ed of the spiritus serpilli, es- sentia caslorei, and camphor, to which 1 am in- clined ciiietiy to attiibute the benefit derived. ]M. Allamand has likewise prescribed belladonna with advantage. Stramonium was used by Sidren ; digitalis hy Uwins and some others; and opium by Swainston. The hydrocyanic acid has lately received the commendation of JVIr. Stuart. He employed it in two cases, after purgatives had been exhibited in large doses, with decided ad- vaniage. The cyanides of iron or of zinc are also productive of benefit. 2.5. Antispasmodic remedies have been resorted to by several physicians. Camphor has obtained a well-deserved notice from Werlhoff, Wahon, ^VlLsoN, and others. The cupri ammonio-snlphns has been prescribed by Dr. Walker, after alvine evacuations, and found beneficial in cases where bark and other tonics have failed. Willan, Uwins, Delarive, and Theussink, have also spoken of it favourably ; and Merk carried it so far as to produce an emetic effect. Valerian lias been recommended by Bouteille, Bernt, IMur- RAY, Guersent, &c. After the bowels have been evacuated, it is in many cases an excellent remedy, eitiier given by the mouth, or adminis- tered as an enema. The oxide of zinc has re- ceived a very extensive trial in this affection from Hart, Burseri, Thilenius, Sciiuaud, Wright, Hufeland, and Kerst. Stoll, however, states that no benefit is derived from it, altiiough pushed to a great length. 1 have seen much more arlvantage produced from the sulphate than from the oxide of zinc. Although tlie oxide may bq given without advantage, and irritate the stomach, the addition of a full doed to accomplish the former will be sufficient to remove existing irritation about the roots of the voluntary nerves ; but when we have mai'ked evidence of irritation of these parts, or of determination of blood to any part of the cerebro-spitial axis or investing membranes, either in the state of the pulsation of the carotids, increased temperature of the head, coldness of the extremities, tender- ness or pain from the occiput along the spiuiil column, particularly when pressing between the vertebra; on each side of the spinous proce-ses, the application of leeches behind the ears or along the spine, and repeating them accoi'ding to cir- cumstances, or cupping in that situation, will be recjuisite, and not incompatible with the use of tonic and antis[)asmodic medicines, in cases pre- senting sym[)loms indicating the propriety of le- soriing to them. Alter leeches, the cold affusion on the head or on the spine, night and morning, or the shower bath ; rubefacient liniments to the hitter situation, the turpentine embrocation, or the tartar emetic ointment or jihisler ; the warm sul- phur-batli, or the sulphur fumigating biitli ; warm woollen clothing on the lower extremities, and attention to the mental emotions ; constitute iin- poil:int parts of the treatment. CHOREA AND RELATED AFFECTIONS — Treatment of. 335 31. An accurale idea of the remote causes of the disease, as well as of their probable opeiation and continued effect, should lead not only to their removal as far as possible, but also to a treatment modified accordingly. The mental impressions and moral emotions are often more or less affected, particularly in those irregular foims of disorder, whicli have very generally been confounded wiih chorea. This circumstance should not escape the attention of the phy-.ician, as it points to the em- ployment of moral management in aid of medical measures. As the mental affection, when it ex- ists, has generally an intimate relation to the remote causes of the disease, the importance of ascertaining the existence of the former, as well as the nature of the latter, as a basis of an appro- priate treatment, must be manifest. 32. c. Having removed accumulations of mor- biil matters, and subdued irritation existing about the origin of the voluntary nerves, or in pans of the cerebro-spinal axis, or enveloping membranes, and having excited the actions of tlie secreting and assimilating organs by the means stated above, the third intention of cure is to be now entered upon in a more decided manner, by the exhibition of tonics combined with antispasmodics, and by due attention to the state of the bowels, and functions of the secreting viscera and sur- faces. The combination or alternation of bitter tonics with aperients and antispasmodics will often be necessary during this stage of the treatment ; or an occasional do?e of a brisk purgative, or of calomel, will be exhibited with advantage during the employment of tonics. Even when the bowels are so active as apparently to render this inter- ference unnecessary, a dose of the pilula hy- drargyri, given once or twice a week, either with or without the pilula aloes cum myrrha, will he found serviceable. As to the choice of tonics, no immutable rule can be laid down. The state of the pulse, and of the secreting organs, should be the chief guide in the selection of them. At- tention to the mode of combining them is also of much importance. The carbonate, the sulphate, and the iodide of iron, and the sulphate of zinc, aie the most appropriate. Bark, in any form, will be beneficial when judiciously prescribed. 'J'he following powder will be found serviceable, and may be taken in some aromatic water ; the doses of the ingredients being varied according to the age of the patient, and tlie state of the bowels : — No. 126. R Pulv. Cinchonae gr. xij.; Pulv. Rhei gr. viij. ; SoUae Carb. gr. x. ; Pulv. Capsicl Annul gr. ij. iVIisce. If the decoction be preferred, it will be found most beneficial when given with liquor ammonias acetatis, and spiritus ammoniaj aromaticus. The sulphate of quinine is an excellent medicine, espe- cially when the patient is old enough to take it in the form of a pill, when it may be most advan- tageously combined with aloes, as in F. 572 — 577., or with camphor, iron, and aloes, as follows. In this state of combination a decided action will be exerted on the bowels : — No. 127. R Camphorae rasas, Ferri Sulphatis, Qiiinina; Siilphatis, aa 3 j. ; Extr. Aloes Puril'. 3 ss. ; Extr. Gen- tianae (vel Pilul.Galban. Conip.) 3j-; Syrupi Siinp.q. s. M Fiant Pilula xxxvj., fjuarum capiat duas bis quo- tidie. 33. In this stage of treatment much advantage will often be obtained from valerian, combined with other antispasmodics and tonics, or with the alkalies (F. 269. 36y.); from the preparations of iron, as recommended in the article on Chlorosis, (§ 13.), or in F. 521.523.; and from the sulphate of zinr (F. 582 — 587.), or the arsenical solution (F. 364.). As chorea is sometimes complicated with disease about the heart, or the roots of the voluntary nerves, or the membranes of the brain or spinal chord, or an inflammatory nature, caie should be taken not to exhibit this last ac- tive substance, or even the preparations of iron, or of bark, until tiie symptoms of these complica- tions have been removed by local depletions, cold affusions, or the shower bath, and counter-irrita- tion. A similar precaution is still more requisite in respect of the employment of stri/chnine, or the nux vomica (see F. 443. 541, 542. 565. 907.), which J. have found of much service in the ad- vanced cour-e of treatment of the simple form of cliorea, or when it has been associated wUh rheu- matism of the joints or extremities, with chlorosis, hysteria, or amenorrhoea ; in which complicated states of the disease 1 have likewise found the ioduret of iron, the tincture of iodine, and iodide, or ioduretted iodide of potassium, of great service (F. 234. 722.). The formulas for the above me- dicines given in the Appendix, or the following, may be adopted : — No. 128. R Olei Valerianae Ttf xij. ; tere cum Sacch. Purificati 3 lijss. ; turn adde Int'us. Valerianae 3 vijss. ; Liii. Potassse Arseniti> iri xv. ad xxx. Misce. Capiat Coch- learia duo larga ter quotidie. No. 129. R Pulv. Calumbae gr. x. ; Pulv. Valprianae gr. ,\ij — 3j. ; Ferri Sesquioxidi gr. x. ; Pulv. Cinnani. gr. vj. M. Fiat Pulvis, vel Electuarium nioUe cum Syrupi Ziiig.b. q. s., bis terve quuitidie sumatur. No. I'M. R Ferri Sesquioxidi 5 ss. ; Pulv. Bilart. Potassae 3 vj. ; Confection SeiuiK, Syrupi Zmgiberis, aa 3jss. Misce. Fiat Electuarium, cujus capiat Cochleare uimiri minimum mane nocteque. No. 131. R Ferri Sesquioxidi ; Sulph. Praecip.aa 3 ij.; Potassa; Bitart. Pulver. 5 v. ; ConCectioius Seiiiife et Syrupi Zingiberisaa 3 jss. Misce. Fiat Electuarium. Su- matur Cocii. unum minimum mane nuctequp. Nil. 132. R Biboratis Sodae, Kitart. Potasss, aa in Pulv. 5 iij. ; Sesquioxidi Ferri 5 ij. ; CoHl'ectionis Sennas 3 ij.'; Syrupi Zingiberis q. s. ut fiat Electuarium molle, cujus Cochleare unum miiiiinura mane nocteque sumatur. 34. During the use of these medicines, the oint- ment or plaster of the potassio-tartrate of antimony may be applied !o the spine'; and when the tonics are not combined with aperients, the former may be exhibited in the course of the day, and the lat- ter at bed-lime, as they may be required. '1 he nitrate of silver may also be tried in doses of half a grail), or a grain, combined with aloes, or the aloes and myrrh pill. 35. C. The treatment of the complicated and irregular states of this disease must necessarily be modified according to the diversified foini it as- sumes. The association of the disease with rheumatism has been observed by me on several occasions, and, in nearly all, there has been a marked disposition of the rheumatic affection to recede from the joints or extremities, and attack the internal fibro-serous membranes, as those of the cerebro-spinai axis and the pericardium. This unfavourable result has generally been pro- moted by a loo lowering treatment ; but pre- vented by tonic and stimulating medicines, with due atiention to the alvine evacuations. In case^^, therefore, complicated with iheuniati-m, chloro.sis, anfemia, or retention of the menses, ihe purgatives selected should be of a warm and stomachic kind, or combined with cordial and stimulatinLr substances ; the compound tincture of guaiacum, camphor, serpentaria, and similar medicines, beiii" also employed. In these states of disease, the internal use of the cod or tusk-liver oil will be 33G CLIMACTERIC DECAY — Symptoms. found most beneficial. Having observed instance's in which the suppression of the rheumatic affection of the joints by the use of embrocations and lini- ments was rapidly succeeded by the appearance of internal disease, the application of such reme- dies to the external seat of the rheumatic disorder should not be resorted to. 36. In the irregular J'orms of chorea, particu- larly those which present more or less of an hys- teiic cliaracter, the functions of the uterus, and the circulation of the brain or spinal ciiord, or both, are often disordered. In these it will be requisite not only to evacuate the bowels freely, but also to alhiy uterine irritation, where it seems to exist, by leeches a|)plie, p. 'Afi. — Schwartz, De Taran- tisino et Chorea Sti. Viti, &c. Vieii. 1766 — h'otlicrgiU, in Philos. Trans, for 1799, part i — iJe Haen, Rat. Med. part i. p. Ml., part iii. cap. vi. \).'i'l\ .— Bur.'-erius, Institiit. vol. iii. p. 242 Prnada, Saggio d'O.sservazioni. n. 9. — Merit, Museum der Heilkunde, b. iv. p. 198 Sti.ll, Rat. Med. pars iii. p. 40.5.. et pars i v.)). 469 JVendt, Nachriclit von dem Krankeninstitut zii Ertang. 17^3 Baldinger, N. Mag. b. ix. p. Ih.^ Eclcer, in Phwl's Kosog Fhilos. t. ii. p."94. — Gen4A, Phil. Trans, vol liii. \lGi.—De Haen, Kat. Med. par. iii. p 202. — Sidren, Dissert. Mirb. Casus, Sp. &c. Upsal. \1H^.— Hallaba, De Morb. Variol. Posth. Vien. nH<.). —Pluucvjuet, Obser. Med. Tubing. 1787.— White, Edin. Med. ( omrnent. vol. iv. p. 326 Hart, in Ibid. vol. i. p. 76 — Odier.xn Iliid. vol. iii. p. 191 Walker, in Ibid. vol. x. p. 28S Artnslrortj;, in Ibid, vol, ix. p. 317. — 'I'/tilenius, Medic, und Clilr. Bemerk. &c. p. ll.'i. — Werl- h'ljf', Ob.s. de Feb. sect. ii. h i. — Sirninstan, Thoughts, Phys. and Pract. \c. York, 17'.i6._ A'wAci/iwn, On Chorea •Sti. Viti,8vo. Philad. ISO!) lla»iilti»i. On I'urgative Me- dicines, ch. vi. — Plenck, De Morhis Infantuin. Vien. 1807. llichter. Die Speciellc Therapie, li. vii. p. T'l — Ilufe- land, in his Journ. der I'ract. Heilk. b. i. p. 1.52., et Jiiiie, 1811, p. 8'^. May. 1812, p. VI. — Hiltiehrand. in Ibid. b. xxlv. St. i. p. 147. — Wend< Islalt. in Il)id. p. 149— Eck- stein, in Horn's Archiv, &c. b. iii. p. 241. — lirUckni'tiin, in Il)id. Jan. 1811, p. 9., et 1812, p. 168 ; et Journ. de Med. t. Ixxiv. p. 1.36. — >>•>/>///, Mem. of Med. Soc. of Lonin, Ideen zur Diagnostili, b. i. pp. 131. \U.— Mahiiu, Joiirn. de M6d. I. Iviii. p. .5.53. — Alliiniand, Jonr". ■'■ "••'' Ketlnliui:. l)c Chorea Sti. Vitl. Erf. 1803. - SchtcjSfer, Kliidcrkranidi. ii.Wi.—llcil, Fieberlehre, b. iv. p. ^1G.— Martin, Trans, of Med "and Chirurg. Soc. vol. iv. p. ih. — Kinder Wood, in Ibid. t. vii. p. 237 — Wall, in Ibid. vol. v. p. I. — Salter, in Ibid. vol. X. p. ilH. — G report/, Ibid, vol.xi. p.2y9. — Jf')7- lan. Reports on the Diseases of London, p. 24.5. ; and Med. and Phys. Joiirn. vol. vii.— Coxe, Med. and Phys. Journ. vol. xiii.p. 40.5., and vol. xviii. p. 221. - Paterson, in Ibid, vol. xiii. p. 119., vol. XV. p. 127., and vol xviii. p. 234.— Peltx, Ibid. vol. lix. p. 4.54. —Kerst, De Zinco ejusque Usu pra?Lipue in Chorea. Jen. 1812. — A/a/o», in Lond. Med. Repos. vol. v. p. MH. — Bedingjield, Compend. of Med. Practice, Lond. 1816. p. 52. — Copland, in Lond. Medical Repository, &c. vol. w.p. 23 Prichard,m Ibid, vol. xxi. p. 1 — Roeser, in Hufelarid's Journ. der Pract. Heilk. Nov. 1828. — Serres, Lancet, vol. xiii. p. V6^.— Aliprandi. in Giornale Analit. di Med. Milano, Guigno, 1828.— Fer- rari, in Ibid. Novemb. \%29,. — Gibney, Med. Gazette, vol. i.p. 54. — Armstrong, his Lectnreson Medicine. Lan- cet, vol. viii. p. 70. — Clutlerbuck. Lectures on Med. Ibid, vol. xii. p. ilX.— Piedagnel, in Majendie's Phvsiology, translated by Millignn. 3d edit. p. lS^. — Laure7ii. in Ibid. p. \d\.—Bouleille, TraUeAeUCuorHe.&c. Paris, 1810 Pov'cll, Tr.ms. of College of Phys. vol. v. p. 3.58. — Maton, in Ibid. vol. v. p. 188 — Crampton, Trans, of the Assoc, of Phys. of Dublin, vol. iv. p. \\\. — Griffith, Philad. Med. Mus. 1806. — Reeves, in Edin. Med and Surg. Jonrn. vol. viii. p. 314. —Hunter, in Ibid. vol. xxiii. \>. mi. —Jef- freys, Ibid. p. 273. — Stuart, in Ibid. vol. xxviii. p. 271.— Uirins, in Ibid. vol. viii. p. 408 Swan, in Ibid. vol. xxii. p. 94. — Crichton, in Ibid. vol. xxxi. p. 300 Manson, Re- searches on the ElTects of Iodine, &c. p. 230 Etliotson, Trans, of Med. and Chirurg. Soc. vol. xiii. p. 2.52. ; and Med. Gazette, vol. vii. p. 6.52. — C/iisholm, On Diseases of Trop. Climates, 8vo. 1822, p. 97 Lisfrank, Archives Gener. de Med. Sept. 1827 Harroieer, in Glasgow Med. Journ. vol. ii. p. 212 Young, in the American Jonrn. of Med. Sciences, vol. ix. p. 310. — Broivn, Medico-Chirurgi- cal Review. &c. vol. xv. p. 326 Johnson, in Ibid, vol.xv. p. 481 — Serres, Revue Medicate, 1827, t. iii. p. 518. CLIMACTERIC DECAY,— C/(maase, Classif. 3. Class. 4. Order (Good). I. Cl.ass. V. Order (Author). 1. Defin. — General decline of the vital power's, at the age of senescence, icithout unij evident cause. 2. The ancients believed that very impoitant changes took place in the economy at certain periods ; the first being the seventh year, and the subsequent epochs answering to the numbers resulting from the muhi[dication of three, seven, and nine, into each other : as the twenty-first, the foity-ninth, the sixty-third, and the eighty- first years. The two last were called grand cli- macterics, as the life of man was supposed to have reached its allotted term. The doctrine of climacteric periods has been traced to Pythago- ras, who derived it from the Egyptians; and, although its truth has been denied by many emi- nent physicians, it has been believed in by others. The changes which take place at these epochs are of two opposite kinds ; that of renovation, and that of decay. It is the latter of these which will be here considered. 3. I. Symptoms. — This di.sease has been very minutely described by Sir H. Halford. It usually comes on insensibly. The patient fiist complains of fatigue upon slight exertion ; his appetite becomes impaired ; his nights are dis- turbed or sleeple.'is, and his mornings unrefieshed. The tongue is somewhat while ; the pulse a liiile accelerated ; the face extenuated, occasionally slightly bloated ; the body emaciated, and the ankles and legs disposed to swell. 'The urine is not deficient, but the bowels are sluggish, and j)ains, with vertigo, are occasionally felt shooting through his head and various parts of the body, but are not possessed of the rheumatic character. As the vital exhaustion proceeds, the stomach lo,''i>('' I'ioy with warm diaphoretics, at the commencement of their diseases, and of supporting the energies of life in the advanced stages. The circumstances now referred to as modifying the constitution and diseases of the dark races of our species, should never be over- looked when devising plans for treating them. Nor should the fact be neglected, that worms, especially lumbrici, in the intestinal canal, are very frequently connected with the origin of many maladies of remote but related organs. Affections of the stomaeh, diarrhoea, colicky pains, leucorrhoca, various spasmodic, and convulsive disorders, chronic dysentery, &c., very often'arise from this cause ; and no more than the cause itself, will ever be permanently removed, in these races, especially by evacuations alone, but by combining them with stimulants, tonics, and an- tiseptics. Although both the habits and modes of living of the dark races, and the constitution of their digestive organs, require the occasional use of active purgatives, in order to remove the saburra and coUuvies which so rapidly collect on the intestinal mucous surface, yet those medi- cines should generally be combined or alternated with substances which exert a cordial and tonic influence, as their vital energies soon sink under frequent evacuations when deprived of an accus- tomed or requisite stimulus. (See Art. Disease.) 26. ii. Of the Food of ]Man in Helation TO Climate and the Constitution of the VAniLTiES of the Spec:ies. — The intimate relation which subsists between the food ,of man, and the nature of the soil and climate which he inhabits, and the combined operation of both upon his constitution and the character of his diseases, have seldom been considered in a manner deserving of the subject. Man, although ubiquity. If the wastes of Lapland, the shores of the icy sea, the frozen coasts of Greenland, and the deserts of Terra del Fuego, were destined by nature for the habitations of man, then is he not an herbivorous animal ; nor is even a mixed diet necessary for his support. It would be im- possible to procure vegetable productions where the earth's surface is almost constantly either frozen or covered with snow. The continual use of animal food is as natural and wholesome to the Esquimaux, as a mixed diet is to an Englishman. The Ilussians who winter in Nova Zembla, according to Dr. Aiken, imitate the SamoVeds, and eat raw flesh and drink tjie blood of the rein- deer, in order to preserve their health in these arctic regions. The Greenlander devours, with good appetite, the raw flesh of the whale, or the half frozen and half putrid flesh of seals ; and drinks the blood of these latter animals, or regales on dry fish and whale-oil. 29. Within the tropics, man is subjected to the continued operation of a high temperature, which excites the nervous functions and vascular action, notwithstanding the provision with which nature has furnished his integuments, in order to moderate the animal heat. This provision, as we have seen, consists chiefly of the dark colour of the rele miicostim, which speedily gives off the superfluous heat of the body, and of the great activity of the perspiratory functions (§ 22.). In- tertropical countries, particularly such as are low or swampy, while they abound with the produc- tions of the vegetable kingdoms, and with nu- merous swarms of insects and reptiles, maintain very few of those gregarious animnls which serve as food; and thus we perceive that their inha- bitants, unless in elevated and cool situations, as in Abyssinia, Mexico, &c., are obliged, by the scarcity of these animals, to subsist on vegetable productions, and to adopt a system of religion, which, while it tends to prevent the entire de- struction of the more useful species, is suflScient 346 CLIMATE — In relation to the Food op Mav. to restrain their numbers within their appropriate means of subsistence, and without encroaching on or impairing the supply of food with which the vegetable creation furnishes man. Hence, in many places of intertropical Africa, the lower animals, whose numbers are few, are occasionally made sacred by the priests for a time ; and in other places of this continent animal food is very rarely enjoyed. In Hindostan, the natives are almost debarred from the use of flesh meat ; and the cow is made sacred, evidently to prevent the destruction of a species, whose milk furnishes man with one of the chief articles of diet. 29. But nature provides a more suitable ali- ment to the inhabitants of those climates. The date, the palm-tree, the cocoa-nut, the sago-tree the plantain, the sugar-cane, and the banana ; the yam, cassava, ground-pea, and other roots; a great variety of refreshing fruits ; and, more particularly, the very abundant production of nutritious grains, especially the Indian corn and rice, richly supply the natives of these climates with wholesome food. The general and neces- sary adoption of a vegetable diet within the tropics, from the exuberance of the vegetiible creation and the comparative scarcity of those gre- garious animals chiefly destined for the use of man in cold and temperate regions, is necessary to the existence of the human species in the higher ranges of temperature, and in the more unhealthy districts in hot climates. The adoption of animal diet exclusively, or of too large a proportion of it, disposes the human frame, when exposed to the influence of tropical heat, to those diseases which arise from endemic causes, — vii. the decay of vegetable and animal matters, the exhalations of marshy and absorbent soils, and otiier emanations accumulated in moist and close situations ; and to those which affect the alimentary canal and other abdominal viscera. Various epidemic diseases also often produce their greatest havoc, and assume pestilential characters, amongst those who, to the predisposition occa- sioned by a high range of temperature, have superadded that arising from a too full animal diet. It appears to be a salutary law of nature, that, in those cliinates, where animal food would b« detrimental to the human race, there the ani- mals usually destined for the purpose are few in number, and stunted in growth. The localities, indeed, which are the most destructive to man, are also the most inimical to these animals, which, if they were cliosen as the chief article of food, would both dispose to disease and increase its fatality. Thus it appears that tlie distribution of the classes of animals over the surface of the globe is so apportioned, and certain of their orders and genera so restricted to parl'cular latitudes and climes, as to be subservient to the wants of man, without becoming hurtful, or endangering his ex- istence in countries in many respects unfavour- able to his bodily and mental development. 30. While the vegetable diet, which the hottest and most unhealthy climates furnish, is the least liable to excite the nervous system, or to overload the circulating and secreting oryans, or to irritate and inflame the excreting viscera, it serves to promote endurance, and, with the hot spices which grow spontaneously in the same localities, to counteract the contaminating changes produced in the body by the vegeto-animal effluvia to which it is frequently exposed. In both Indies, and in intertropical Africa, the in- habitants of low and moist situations live almost exclusively on rice and maize ; with these they consume, as a condiment, a very large quantity of the hottest spices, the stimulating and tonic qualities of which preserve them from the effects of the diminished temperature and terrestrial emanations, during, and after, the rainy seasons and monsoons, and in some measure from in- testinal worms and other parasitic animals. To these spices even the feathered creation, and the lower animals, occasionally resort, especially during the unhealthy seasons. Were the inha- bitants to live chiefly on animal food, and use the strong fermented liquors made in colder climates, the nervous and vascular systems would be inor- dinately excited, irritability being thereby soon exhausted, and they would be as much disposed to, and affected by disease, as unseasoned Euro- peans who, partly owing to these causes, so soon become its victims, after having removed to low, moist, and hot situations between the tropics. Nature adapts her productions in every climate, to the necessities of man ; and appropriates them to his real, but not his imagined, wants, — to his state of constitution, as modified by the operation of soil, air, and temperature ; and no- where is this provision more manifest than in warm countries. There, if the causes of disease be most energetic, as they most indisputably are, she has chiefly resli-icted them to those which proceed directly from the soil and the climate, while she has confined those arising from the nature and the abuse of food within narrow limits ; as there man is destined, by the circum- stances already alluded to, to live chiefly on a vegetable diet, and is liable only to occasional deficiency of its supply. But even the inflictions which nature thus imposes on the inhabitants of these climates are accompanied by abundant means of preventing their invasion, or arresting their progress. The most unhealthy situations not only abound with suitable means of sub- sistence, but also present spontaneously the most efKcacious prophylactic and curative agents for the diseases that are endemic in them. Thus rice, the banana, the plantain, the juice of the cocoa-nut and of the palm, the oil of the palm- nut, &c., are the most wholesome articles of food in the districts wherein they are most abundant The low grounds on which these are produced abound with deleterious miasms; and the stag- nant water, which there often serves for the ne- cessities of life, contains the ova of insects and animalcula). While the former occasion agues and remittents, the latter gives rise to diseases of the digestive canal, and to the generation of worms; and both causes combine to produce fevers, diarrhoea, dysentery, cholera, visceral ob- struction, &c. In the above localities grow the diflNurent species of the capsicum, — the principal condiments employed by the natives; and these are also the chief prophylactics and remedies for their constitutions against the diseases now alluded to. By the side of the ])alms and the cocoa-nut grow the different species of the tamarind and the croton, which arc, respectively, the mildest and most cooling aperient, and the most active cathartic. Thus nature provides an antidote to tho bane which is imposed on the inhabitants of CLIMATE — Effects of unhealthy warm climates, and, by adopting the indications she presents, they are enabled to exist without suffering much more from disease than the natives of temperate countries, orhavingthe allotted span of human existence much abridged. It is in no small measure owing to his persisting in the diet, beverages, clothing, and modes of living, suited to a cold or temperate climate, and to which he had become accustomed, that the European is liable to disease when lie has removed to a hot country. When travelling in the most unhealthy parts of intertropical Africa, in 1817, I met with an Eng- lishman, who had lived there between thirty and forty years, and was then in the enjoyment of health. The circumstance was singular ; and, in answer to my inquiries as to his habits, he in- formed me, that soon after his removal to that pestilential climate his health had continued to suffer, when, after trying various methods without benefit, he had pursued as closely as possible the modes of life of the natives, adopting both their diet and beverages, and from that time he had experienced no serious illness. 31. In countries approaching the poles, where the continued low temperature, and the want of solar light during two thirds of the year, tend to diminish nervous and vascular energy and tone, and to lower the whole circle of vital actions, nature has furnished man with those articles of food which are the best calculated to nourish, to stimulate, and impart vitality to the frame, and thus to enable it to bear up against the rigour of the seasons, and the injurious influence of the climate. Without such food, the inhabitants of arctic regions would fall a prey to diseases of debility, and the higher latitudes would soon be- come entirely depopulated. In these, as well as in northerly and elevated parts of temperate countries, nature spontaneously provides man with those substances which are the most energetic, both as preventives and as remedies of those diseases which arise from the influence of climate. The various species of pine abound in the coldest regions, and furnish, in numerous forms, the most efficacious internal and external medicines, and even the most wholesome beverages in these maladies. Hasmorrhagic diseases, low fevers, asthenic inflammations, scorbutic and cachectic affections, the extreme effects of cold upon the extremities, &c., are most successfully prevented or treated by the judicious use of terebinthinate preparations. This observation is also applicable to the arnica montana, and other alpine plants. 32. The temperate zone, whilst it furnishes in its wide range the greatest diversity of climate in some localities that of the tropics, in others that of arctic regions — provides man with the greatest abundance of animal and vegetable food : thus enabling him to combine both, or to adopt more or less of either, according to the nature of the seasons, of the climate, and the particular circum- stances in which he may be placed. Nature is always provident : she takes suflicient care that each particular district or country shall have within itself, or be capable of producing by requisite labour, those articles of food which are most appropriate to the climate, and thereby the most wholesome to its inhabitants. When commerce or manufactures iiicre;ise the population of a dis- trict beyond the means of sustenance derivable from the soil, and lower animals, in the vicinity, i Change op, on Man. 347 the food which is obtained from a similar climate is generally the most wholesome. \'arious dis- orders originate from the introduction, from re- mote countries, of unsuitable articles of luxury into diet ; and not a few arise from the improper mode of preparing food, which would otherwise be wholesome. Thus, the hot spices and the high- seasoned dishes, which, during the tropical rains would be beneficial to the natives of those cli- mates, who live chiefly on vegetable diet, fre- quently are productive of disease amongst those who partake too freely of animal food, or the high- feeding inhabitants of commercial cities. The adoption, also, of highly seasoned dishes, with an undue quantity of flesh meat, — undue, because exceeding the wants of the economy, and the cir- cumstances of the climate, — and the use of spi- rituous and fermented liquors, are fertile sources of disease, particularly fevers, and affections of the abdominal viscera, among Europeans residing in warm places or during warm seasons. 33. From these and other considerations tlie following corollaries may be drawn : — That the climate of a country should, in a great measure guide man in his selection of food; those produc- tions which are most abundant around him beinn- most appropriate to tiie circumstances in which he is placed : and that the nature of his food thus conspires with the climate to modify his constitu- tion, whilst it serves to counteract the rigours of season, and the unwholesome influences to which he is constantly exposed in very hot as well as in very cold countries. 34. iii. Of the Effects pnoDucED on the Human Constitution by Change from one Climate to another of a very different or opposite Description. — By referring to what has been already advanced respecting the phy- sical relations of climate, and the circumstances more immediately connected with cold and warm countries respectively, and by connecting these with the peculiarities characterising the races of man inhabiting both, we shall readily perceive that a most important revolution will take place in the animal frame from the change, in whichever di- rection it may be made; and that such revolution will be great in proportion to the suddenness and greatness of the change; it being in either case attended with more or less febrile commotion or other diseased action. 35. 1st. Of cliange from a cold or temperate to a ivarm climate. — A. Keeping in view the followino- characteristics of a cold and temperate climate — viz. its low temperature, the alternations of sea- son, the pureness of the atmosphere, the more nutritious, invigorating, and stimulating nature of the food, and the effects of warm clothing — and connecting these with the vascular plethora, the active functions of the brain, lungs, liver, and kidneys of its inhabitants, the disturbances which will result when they are subjected to a continued high range of temperature, and to an atmosphere loaded with moisture, and frecjuently with vegeto- animal effluvia, may be anticipated. It is now fully ascertained that the effects of a high range of temperature, and of moist miasmal air, on the European constitution, are a diminution of the changes effected by respiration on the blood, an increase of the secreting and excreting functions of the liver and skin, and a decrease of the urin- ary excretion. When, therefore, the plethoric 348 CLIMATE — Effects of Chakge of, on Man. European migrates to an intertropical country, the functions of the lungs and the pulmonary exhalation become diminished ; the requisite changes are not effected on the blood, notwith- standing the excitement of the nervous and vas- cular systems by the increased temperature ; and the already active and developed liver is irritated, and has its functions augmented by the increase of those elements in the blood, that the lungs and skin cannot remove from it. Hence proceed fe- brile attacks, particularly when excited by their appropriate causes ; inordinate activity, with a re- lative frequency of the diseases of the liver; the secretion of acrid bile; and the disorders espe- cially affecting the alimentary canal and excret- ing organs. The general adoption of too rich and nourishing food and beverages by those who re- move from cold to hot climates, tends greatly to increase these evils, as already explained (§ 30.); and the influence of high temperature and of a vertical sun upon the European head is produc- tive of disease both of it and of the liver. To these effects, the mental cultivation and activity of Europeans somewhat predispose them ; whilst their heads are not so well guarded from external influences by the constitution of its integuments and hair, and the tliickness of the cranial bones, as those of the negro and iMongol varieties of our species. 36. The obvious indications resulting from these facts are, that natives of cold countries migrating to warm climates siiould, particularly if the change has been made abruptly, live abstemiously, and promote the functions of those organs which perform the most essential part in excreting effete or injurious elements from the circulation. The head should be kept cool, and protected from the> rays of the sun ; the surface of the trunk and lower extre- mities ought to be preserved in a freely per- spirable state, so as to take off the load of circulation, and derive from the excited liver. In order to promote the secreting and depu- rating functions generally, active exercise, short of fatigue, should be taken, without exposure to the causes of disease, particularly those which are endemic. As the maladies which most fre- quently supervene on change from a cold to a warm climate proceed neither from the increased temperature alone, nor from greater moisture of the air, but from these conjoined with malaria, and not infrequently also witii wide ranges of temperature during the twenty-four hours, espe- cially in high and inland localities — with hot days, and cold, raw, and dewy nights, and with a too full and exciting diet and regimen, causing fevers, dysentery, and diseases of the biliary organs — care ought to be taken to avoid those causes, as well as wliatever may tend to assist their oper- ation on the frame, and to protect the system against the sudden daily changes by warm cloth- ing at night, &c. 37. B. I'lie consideration of the effects produced by migratian duiirii^ . There are various other places on the shores and islands of the Mediterranean, the^cli- mates of which are suitable to invalids ; but we possess little or no accurate information respect- ing them. Malaga in the south of Spain, Cagli- ari in Sardinia, and some parts on the coast of Sicily, afford a mild winter climate, but the diffi- culty of reaching them, and of obtaining in them many necessary comforts and conveniences, almost precludes invalids from the northern parts of Eu- rope from visiting them. Malta is not open to these objections; but, according to Dr. Hennen, the quantity of dust raised from its arid soil, and suspended in the air, during dry weather, renders it an unsuitable climate for consumptive pa- tients. A considerable number, also, of the in- liabitants die of pulmonary diseases. In his work on the medical topography of the islands of the Mediterranean, Dr. Hennen states a fact, which is perfectly in accordance with my observ- ation in warm climates, although doubted by Dr. Clark, viz. that those of the Ionian Islands, which are decidedly most malarious and remark- able for remittents, have had fewest pulmonarii affections amongst the British troops. In respect of the health of the troops stationed in these islands, tiiis writer states, that, from an average of seven years, phthisis has borne a proportion to other complaints of 1 to ]98|^ only. At Malta, on an average of eight years, consumption has occurred in the proportion to other maladies of 1 to 93^. Including all pulmonic complaints whatever, the proportion to others, as regards the Ionian Isles, has been 1 to 20| ; and, as respects IMalta, I to 14. 'J'aking into calculation the whole Mediterranean islands, the proportion of pulmonic, to otiier diseases, has been 1 to 174 ''^ the liritish army. 58. iv. Climate of the Nortliern Atlantic. — Umkr this head the climates of Lisbon, Cadiz, Madeira, tiic Canaries, the Azores, liermndas, and the Bahamas, may be arranged ; all of which have been recommended to persons re(iuiring a soft and etiuablt climate, during the winter and spring. CLIMATE — As a Therapeutical Agent. 59. A. Madeira is, of all these places, indis- putably the best, as respects both the climate, and the comforts and conveniences within the reach of the invalid. The frequency and excellency, also, of the means of conveyance to and from the island are no small recommendations. From the minute account furnished of the climate of this island, by Drs. Gourlav, IIeineken, and Ren-- TON, after a long residence in it, and from the effects I have observed in several persons who have resorted to it as a winter's residence, it may be justly concluded, that it is superior to any part of the south of Europe for consumptive cases. Its central ridge of mountains gives it, in . summer, a cool land wind ; and the north trade winds, at this season, render it temperate, and salubrious. During winter and spring, Funchal, and parts near the sea-shore, are the best places of residence; and during summer the more ele- vated situations in the interior are cool and agreeable. The mean annual temperature of Madeira is about 6° higher than the south-east of France and Italy ; and the heat throughout the year is much more equably distributed. The winter of the former is 12° warmer than that of the latter, and the summer 5° cooler. At Madeira the extreme annual range is only 14°, whilst it is double this amount at Fisa, Home, and Naples. In respect also of the progression and steadiness of its temperature, it excels those places. Rain falls at Jladeira on 73 days of the year, and at Rome on 117 days, and chiefly during the autumn in the former. Tiie air is also more soft than at Rome. 60. B. The Canaries possess the next best climate to Madeira. The mean annual tempera- ture, however, of Santa Cruz, the capital, of the former, is 71°; whilst that of Funchal, the capital of the latter, is only 65°, • Tiie summer temperature of Santa Cruz is 7° warmer than that of Funchal, and the winter temperature 5° warmer. Hence the mean annual range of tem- perature is greater in the Canaries than in Madeira; which possesses, in other respects, advantages suf- ficient to recommend it in preference to the former in pulmonary diseases. .. ,. j 61. C. The ]Vestern Islands, or Azotes, enjoy a climate nearly approaching to thafof Ma- deira. They are, however, more subject to high raw winds, particularly those from the north and north-west, which are often very cold and harsh ; and the temperature of winter is lower, and that of summer higher than in JNIadeira. The air is also more humid. From a very short visit I made toi\ladeira and the Azores, — to the former in the spring, and to the latter in winter, — I should conclude the Azores to be much inferior to Ma- deira as a residence for invalids, chiefly, because of the absence, of many necessary comforts .and conveniences, of their stormy winters, and tlie in- frequency and ineligibility of the opportunities of transport between them and tiiis country. The climate of the liermndas and Bahamas presents no advantages sufllcient to obtain for Ihenj a prefer- ence to those already noticed. Tiiey are liable to storms, and to harsh northerly winds in winter, from the American coast, whilst their summers are ■ very hot. 62. V. Climate of the West Indies.— The mean annual temperature of the West Indies, at thel(?vel of tlic sea, is 19°, 8if, and 81° ; and during the CLIMATE — As a TiieuapEuticaL Agent. 353 ^¥inte^ monthfS, iii some places, about 3'^, ami in others only '2° lower. The extreme annual range is 20°, and the mean daily range about 6°. This continued high temperature exhausts tlie energies of invalids ; and the clearness of the skies, and great power of the sun, prevent suitable exercise in the open air. A visit to the West Indies of a few months' duration, made either to some of the most healthy islands, or passed chiefly aboard sliip, will, however, prove of service in several ciironic aflec- tions, particularly those referred to above (§ 37.), excepting consumjjtion in its more advanced stages. Persons much disposed to this disease, cither hereditarily or by the conformation of the chest, &c., or who are threatened by its early stages, will find a removal to the West Indies one of the prophylactic measures most to be depended upon. When residing some time in an extremely malarious place within the tropics, I observed that the most healthy persons in it were those who were constitutionally disposed to pulmonary dis- ease. But I believe, that the observation often made, is perfectly correct, that removal to an in- tertropical country, when phthisis is far advanced, will only accelerate its progress. It may also be stated, that severe and protracted catarrhs are very common upon entering between the tropics. In gout, chronic rheumatism, scrofula, and cal- culous affections, a residence in the West Indies is often productive of advantage. G3. vi. Of residence on the sea shore and ' voi/iiging. — There are certain topics connected with change of climate often discussed during the course of practice, viz. whether are inland situa- tions, or places on the sea-shore, whose climates are physically alike, most serviceable in pul- monary diseases? and whether or not sea-voyages possess any advantage over a land residence in these complaints. — a. In respect of the first ques- tion, it may be stated, that places on the sea-shore are generally more humid than those inland, and ottener, on this account, preferable in the dry and the hemorrhagic pulmonary aflections ; whilst a situation somewhat inland, or not re- moved above a few miles from the coast, seems somewhat more serviceable in those cases of con- sumption which are otherwise characterised. But the question has not been satisfactorily determined, and, indeed, is not easy of solution. 64. b. With reference to the second question, it may be stated more confidently, that sea- voyaging, in a suitable climate, is preferable to land residence in the early stages of phtliisis, and particularly when it is attended by haemoptysis. This advantage is evidently to be attributed to the influence of the ship's motion on the sanguineous and nervous systems. 'J'his opinion was argued for by Dr. GnLconv, in his excellent thesis, De Morbis Call Mutatione Medendis, and has been generally admitted. Cruising in a warm or even temperate latitude, particularly in the Atlantic, is preferable to voyaging, because of its' longer duration. Whilst the sun is north of the equator the climate between the 30th and 50th degree of latitude ; and while the sun is south of the equator, that from the 20ih to the 35th or 40lh degree of north latitude, will be found the most salutary. During winter, voyages be- tween JNIadeira and the SVest Indies; and, in summer, between iNIadeira and this country, in the vessels constantly trading bctwceu England . Vor. I. and the West Indies, and which generally touch at JNIadeira, might be undertaken with advantage. These vessels furnish tolerable accommodations, which may be easily improved or adapted to the state of the invalid. 65. A. When the winter has been passed in any of the warmer situations noticed above, attention ought to be paid to the time of returning to this country. This should not be earlier than the first, or later than the last week in June. If the invalid have passed the winter in the south of France or in Italy, these places may be left early in May, and he may travel cau- tiously through Switzerland, avoiding exposure to the evening and morning air. During the journey, warm clothing should be resorted to as soon as the temperature falls so low as to be- come sensibly cold ; and a free circulition in the skin and extremities ought to be carefully preserved. 66. B. With respect to the diseases which are benefited by change of climate, it is unnecessary to add any thing at this place, as the climates which seein most serviceable are noticed when discussing the treatment of those diseases in which most advantage is derived from removal to particular climates. The affections for which this treatment may be employed, are scro/'u/n, tubercu- lar disease of ihe lungs, hantorrliagej'rom the liuigs, S)C,, chronic bronchitis, asthma, hooping-cough, chronic rheumatism, dyspeptic and hypochondriacal ajfections, urinary calculi, and various fac/iec(ic and hydropic affections. (See the treatment of these complaints in their respective articles.) BiBUOG. AND Refer — Hippocrates, Tli^i Ai^tuv, iSa.- Tuv, T4!T«y, Vander Linden's edit. 8vo. vol. i. p. 327.— Cruder, De Zonis et Climatibus, 4to. Witteb. IfifiO. Wfrter, De Morbis Climatuni, 4to. Duisbiirgi, 17U4. — Burgar, De Melhodo Medendi pro Cliniat. Diversitate varie institueiula, 4to. Lugd. Batav. 17^4. — Hartmann, Diss, de Climate, ejusquo Notitia Medico admod. neces- ■saria, 4to. Regio, 1729. — F. Hoffmann, De Medendi Metliodo varia pro Climatis Diversitate. Halae, 1734 ; et ill part i. vol. ii. Supp. ejusdein opeiiiin. Gen. ed. 1753 Krliger, De Diversitate Corporum Morb. et Curationum secundum Regiones Euroiia;, 4to. Halie, 1744. — G.G. liichter, De liisolatioiie, 0|)usc. t.'i. Goet. 1747. — i>e liuchner, De Difteientiis Naturarum resipectu Cliniatum, 4to. Halne, 1746 — A'. A. Lorry, Sur I'Usage des Alimen.«, iVc. vol. ii. Paris, 1757 ; Journal de Physique, vol. i. p. 430. Paris, 1773 ; et Itnd. vol. iii. p. 243. Paris, 1774 A. Wilson, Observat. relative to the Influence of Climate on Vcget. and Animal Bodies. Lond. 1780. — J. J. Plenck, Broma- tologia, s. Doct. de Esculentis et Potulentis, &c. Vindob. 1784. — J. /.. Schurer, De .\tniosphcra Electrica. Argent. 17S(). — Darluc, Hist. Naturclle de la Provence. Avign. 1782, t. i. p. 15 — Schneider, De Elficacia Ventorum, Dnisb. 1790. — J. C. Kbermaier, De Lucis in Cnr|i. Hum. Vivum cfficai'ia. Gut. 1797. — 1'.. Horn, De Lucis in Corp. Hum. ^'iv. prater Visum effic. Goet. 1797 Cabanis, Rap|;orts du Physique et Moral de I'Homme. Paris, 1802, p. ioi) GourUty, On the Climate and Dis. of Madeira, &c. 181). — Miiraf, Topograph. Med. de la Ville du Mont- jielier, 8vo. 1810, p. 119.— C. K. IVeiss, Diss. Climatol. Medica liiitia sistens. Lips. 1813. — L. Cerutli, Collect, de Tellurisin Organism. Hum. Actioiie. Lijis. 1814. — J. En- nemoser, De Montium influxu in Valefudinum Homin. Vita; Genus et Morbos. Ber. 1816. — J. Knirsch, Synopsis de Climat. Jled. Vind. 1815 Sigaud, Travaux de la Soc. de MCd. de Marseille, ISlti, p. 14. — J. Copland, The Med. Topography of the West Coast of Africa, in Quarterly Joiirn. of Foreign Med. vol. ii. p. l.'; Appendix to Ri- chcrand's Physiology, p. 582. G27. ; and in Gr/Jflt/i'sTr^ns. of Cnuier's Regne Animal, vol. i. p. 130. — liny, in Diet. dcs .Scien. Med. t. v. p. 33U Forbes, On the Climate of Penzance and the Land's End, 8vo. 1821. — Ho/land, On the Duration and Distribution of Rain, Sec. hvo. Lyme IS28. — Xairmann, Allg. Semiotik. Ber. 1826, p. 125. et scq. — Hennen, Sketches of the Med. Topography of the Mediterranean, &c. 8vo. Lond. 1830, p. 221 . — A.de Huin- buldt, Amiales de Chimie et de Physique, t. xiv. p. 22. ; et Fragmcns de Geologie et de Climatologie Asiatlques, 2 torn. Paris, 1S3I, t. ii. ; Foreign Quarterly Rev. July, lti7~. — V/iis/iolm, On the Climate of Bristol aul Clifton, A a 354 COLD — General Effects of. in Edin.'Med. and Surg. Journ. vol. xiii. p. 2(55., and vol. xvii. |). 164. — B. Gaspard, Journ. de Physiol, t. vii. \>. 227. — Foddre, Hist. Nat. Mcdicale, &t-. aux'Alpes Maritimcs, &c. Strasb. 1823 — Rustan, Diet, de Medecine, t. v. p. SGI. — Heineken, On the C'limate and IMed. Topog. of Madeira, Med. Repos. by Copland, vol. xxii. 1S24-, p.rl. — J. John- son, Influence of Tropical Climates on Europ. Const'itut. Svo. 4th edit. 1827 ; and Change of Air, or tlie Pursuit of Health, through France, Switzerland, and Italy, &'C. Svo. 1831, p. 235. et scq. — Anneslcy, Researches on the Dis. of India and Tropical Countries, &c. 4to. 1828 and 1829, vol. i. p. 6()1., and vol. ii. p. 6 Lasnyer, Sur des Climats d'ltalie, Sic. dans les Aff. de Poitrine, S:c. in Nouv.'Biblioth. Med. Juil. 1829. T. LVnri, The Influence of Climate in Chronic Diseases of the Chest and Digejtive Organs, &c. Svo. 2d ed. 1830.— Author, On the Climate of Great Britain, &c., in J. M'Cullock's Statistics of Great Britain, &c. vol. i. Lond. 1838. COLD — (Cl.\ssif. Pathology. jEtiology and Therapeutics.) 1. Cold is merely a relative term, e.vpressing a sensation produced by the abstraction of heat Ijy any substance of a lower temperature than tiiat of the body or part which feels ; con.sequently this sensation is not always occasioned by the same degree of temperature. Nature has recourse to various means for abstracting animal heat from the body, under circumstances requiring it ; and for preventing the dissipation of it, under other circumstances; and the instincts and reason of the animal creation are often evinced in further- ing tliese objects. The dark skin of certain varieties of our species, and the thin hairy cover- ing of many of the lower animals inhabiting hot countries; the fair well-clothed skins, and the thick coverings of wool or fur witli wliich those of cold climates are provided ; and the con- stmction of the dwellings, &c. in different and opposite climates ; are all provisions intended to accelerate, under certain circumstances, and to delay, under others, the dissipation of animal heat. 2. The functions of the living economy can be performed witiiin a certain range of temper- ature only, for any considerable time. Above or Lelow this range, they will more or less rapidly cease, according to the extent to which the change may be carried in either direction, and the rapidity with which it is effected. Whilst the abstraction of iieat is produced more rapidly than it is supplied, either in a part or in the whole body, depression of the vitality takes place co-ordinately with the rapidity of the loss of tem- perature ; but, on the other hand, when the abstraction of heat is altogether prevented by living in a medium of equal or greater temper- ature, excessive vascular e.Kcitement, lapidly exhausting the sensible and irritable properties of the tissues, and thereby terminating human existence, is the consecjucnce. The heat of the human body seldom varies, in health, above 100° or below 96'^ of Fahienheit's thermometer; and although man may live in a lower temper- ature than the 7.ero of this scale, when suitably fed and clothed, owing to the activity of the respiratory and heating functions, yet, in conse- (juence of the nature of tliese functions, he cannot exist for any considerable time in it mean range of temperature above that of his own body. In no part of the globe is the mean annual range of at- mosplieric heat within twelve degrees so great as that of the living frame. 3. i. Pnvsiot.ociCAL AND Patiiologicai, Ef- fects OF Coi.n. — A. A general i iew of its effects. In considering, therefore, the effects of cold upon the body, due icfereiicc should | be had to the state of the respiratory and heat- ing functions, which are essentially vital, and ac- tive in proportion to the greatness of the consti- tutional powers. The abstraction of caloric, or cold, when carried far, first depresses, and after- wards annihilatesy the vital actions of a part, by depriving it of that principle which is necessary to preserve the various tissues composing it in a suitable state for reciprocity of action, and which observation shows to be necessary to the healthy performance of the sensiferous and circulating functions especially. When heat is abstracted to a greater extent than it is supplied, sensibility is diminished or numbed ; and circulation, as respects both rapidity and size of the current in the vessels, is lessened. This effect may be pro- duced in a part or extremity to the extent of anni- hilating these functions in it, whilst in the internal viscera they either remain entire, or are but little changed. 'When this is the case, the part aifected will permanently lose its vitality, if these functions be not soon restored by frictions, and a very gra- dual admission of heat. A part thus aftiscted by cold is said to be fiost-bit, — an accident to which the more exposed parts of the body are liable in very depressed states of temperature. Even friction only may occasion too quick a change of temperature, if it be not made with some sub- stance, as snow, which may prevent the too sud- den increase of heat, and the risk of immoderate reaction. When the vital energies are weak, a less degree of cold will depress them than when they are energetic ; and, upon its removal, vas- cular reaction will be less apparent, or even not at all supervene. If cold be not great, or too long applied, relatively to the vital energies, in- creased action, as evinced by a glowing sensation, follows its impression. When, on the other hand, it is excessive, either in degree or continuance, the depression of vital power, especially the mani- festations of this power in the nervous and circu- lating organs, is co-ordinate, the living animal sinking into a state of torpidity from which it is with great ditKculty roused. Thus cold, momentarily or briefly applied, when the constitutional powers are not very much iuipaired, proves, if not ex- cessive, an excellent invigorating or tonic agent, owing to the reaction v.'hich follows ; but when acting energetically, or for too long a time rela- tively to the state of those powers, it will produce one of two eflects, according to the circumstances attending it, or following its application : either it will depress the vital actions beyond the power of recovery, the .system sinking into a comatose state, or struggling between this state and partial or irregular reaction ; or it will be followed by increased or even uncontrollable vascular action, soon exhausting the vital manifestations of the vessels and the irritability of the frame, or of the part principally expo,5cd, and occasioning disso- lution of the blood. While the continued action of that degree of cold, which may be endured for a short time, very often produces the former re- sult; the momentary exposure to excessive cold, or the injudicious application of heat in an inap- propriate or too rapid a inannei', alter the more moderate but prolonged action of this agent, is usually followed by the latter. Inflammations are not infriiquenlly induced in this manner in the organs to which cold has been directly ap- j)lied, as in the case of inflammation of the lungs coming on after passing into a warm apartment COLD — Its Particulau Effects. 355 immediately from a cold atmosphere. In other cases, the impression of cold when prolonged, although moderate, may, by diminishing vital action in the parts on which it acts, so determine and increase it in distant or even opposite parts or surfaces, as to give rise to inordinate secretion or vascular action in tlie latter. Such being the more general efl'ects of cold upon the system, it will be advantageous to examine its mode of oper- ation more closely, in order that we may be ena- bled to form accurate ideas as to its influence in the causation and removal of disease. 4. B. Particular effects of cald. — a. The primary effects of the abstraction of heat from a part, to the extent of producing a decided sens- ation of cold, appear to be excited upon the Jiervous siistem, whose sensibility and vital mani- festations it lowers, and, when excessive, entirely annihilates. These effects are obvious in both the organic and voluntary classes of nerves ; and are at first attended by an alteration of their sensi- bility of a slightly painful kind, often followed by loss of their functions. Thus, cold will occasionally give rise to local paralysis. When an intensely cold substance is applied to a living tissue, the rapid abstraction and passage of its caloiic through the living surface intervening between them, cause similar eftects to those following the rapid commu- nication of caloric by a heated body, and thereby momentarily excite the nerves and vital turgescence of the intervening parts. Thus, intense cold will produce vesication, inflammation, &c. of the skin. 5. /'. The action of cold, when slowly or mo- derately applied, in diminishing vital turgescence, the bulk of the tissues, and the activity of tiie cir- culation, seems coeval with the effects produced by it on the nerves. By this action the small arteries, veins, and secerning pores are constricted; and the communicating canals between the ex- treme arteries and radicles of the veins are ren- dered smaller and less pervious. Hence, when cold is t pplied to the surfaces of the body, the circulation there and in the vicinity is diminished, and tlie blood is driven thence, and accumulates in the large veins of the internal viscera. Owing partly to this operation, and partly to the sedative effects of cold upon the nervous system, the whole circulation becomes weakened, and congestion of the large vessels and internal erectile tissues takes place. If the impression of cold is only for a short period, the vital energy not being at the time materially deficient, the heart and large ves- sels are enabled to react upon the load that op- presses them, and an increase of the circulating functions ensues. But when the impression of cold continues, circulation becomes less and less active, with at first slight or inefficient efl'orts at recovery, and at last ceases entirely. 6. c. Muscular parts are very sensibly aflfected by cold, in consequence of its effects upon the nerves supplying them, and of the diminution of the circulation in them. Nervous energy, therefore, being depressed, and the circulation weak and insufficient, muscular contractions also become weak and tremulous ; and the muscles subsequently stiff, or altogether rigid, frequently with cramps or spasms intervening between these states. A share of these extreme effects is, doubtless, owing to the vascular congestion pro- duced on the cerebro-spinal axis, and on the origin of the nerves supplying the muscles. The cramps often occurring after plunging into cold water, or while swimming, are illustrations of the effect on the muscular system of moderate cold suddenly applied to the surface, and of its action thereon, through the medium of the nervous and vascular systems. After the power to make muscular exertion ceases, in consequence of the continuance or increase of cold, remarkable stiffness and rigidity of the voluntary muscles supervene, sometimes extending to the respir- atory muscles, and producing asphyxy. In many cases, where cold acts intensely or suddenly upon the surface of the body, rigidity takes place with remarkable celerity, as stated by Quintus CuuTius, and MM. I'ahat, jMautin', and Beaupue, to have occurred in the expedition of Alexandeh, and the retreat of Napoleon from Moscow. Trismus and tetanus have followed, in some cases, a moderate decrease of temperature, and difficult articulation is not an uncommou efl^ect of this cause. 7. d. The influence of cold upon the respir- atory and calorific functions is very manifest. When atmospheric cold is moderate, and suf- ficient exercise is taken in it, and the cutaneous surface and extremities are sufficiently clothed, then respiration is energetic, the changes pro- duced on the blood are complete, and animal heat is freely generated, and is sufficient to sup- ply the continued loss of it from the surface of the lungs. But when cold depresses the nervous power, owing either to its excess, or to the circum- stance of its acting simultaneously upon both the cutaneous and pulmonary surfaces, or to the cir- culation being unaided by muscular exertion, then respiration becomes laborious, quick, and painful ; and the production of animal heat is insufficient to preserve the fluids and soft solids in a suitable state for reciprocal action, rigidity, followed by congela- tion, first of the extremities, and subsequently of more central parts, taking place. As long as the nervous energy and the circulation are unimpaired, animal heat is freely developed ; but it becomes co-ordinately depressed with the failure of these, and returns in a proportionate degree with their restoration. When cold has acted for a con- siderable time upon the frame, animal heat is either restored with difficulty, or it continues to vacillate and sink with the nervous and circu- lating functions until death supervenes. It js chiefly during the period which elapses between the exposure to cold, and restoration from its efl^ects, that diseased action commences, or is developed. Too long continuance in a cold bath, wet clothes, and numerous other means of refrigerating the body, will produce a loss of temperature that may never be recovered. Dr. CuRRiE found that a man with a temperature of 98°, three hours after cold bathing and exposure to a north wind, had not recovered his natural heat, although warm stimuli, frictions, &c. had been employed. During such states of pro- tracted restoration, various morbid states are apt to originate and to give rise to a train of diseased actions, varying in almost every case with the constitution, temperament, predisposition, and habit of body of the individual. Even after re- action has taken place, some particular organ or part may suffer especially, owing to these predis- posing circumstances; and inflammation, with effusion, disorganisalion, &c. may be the result A ti 2 356 COLD— Pathologicai, Effects of 8. e. The eftects of cold upon the brain and the organs of sense and vvlunlarii motion, are similar to those already described. Hearing, sight, touch, &c. become imperfect, the functions of mind im- paired, and insensibility, somnolency, delirium, and convulsions supervene. The somnolency, and indifference to the consequences of indulging it, when long exposed to cold, have been well known since the accounts given of the cases of Dr. So- I.ANDER and Sir J. Banks, in Terra del Fuego, of Maupektil's in Tornea, and of Captain .Parry's associates in the north-west expedition. But the fullest description of its effects upon the senses and cerebro- spinal centres is given by Beaupre. The same degree of cold, according to the state of the system, and the extent to which the surface is protected, will cause either delirium of a quiet comatose kind, or raving madness, or convulsions, passing into tetanic rigidity. Great insensibility and somnolency will also often steal upon their victim, without any other mental dis- turbance ; and occasionally they will be preceded by tremors, delirium, and convulsions. 9. f. Cold produces very decided effects upon secreting organs and surfaces. When it acts directly upon either of these structures, it dimi- nishes or entirely suspends their functions, owing Loth to its sedative action on the nerves and circulation, and to its constricting influence upon the canals and pores of the part, it thereby lessen- ing vascular turgescence and vital manifestation. Cold air or cold fluids acting upon the external surface interrupt the functions of the skin, par- ticularly if the cold be combined with moisture. A similar effect is produced upon the pulmonary mucous surface, only if the cold be intense, and if it be at the same time humid. As long as the cutaneous surface is protected, and the vital energy of the frame is unsubdued, t!ie exhalation of vapour from the lungs, and the other changes in the blood that take place in this organ, are not materially interrupted until the temperature of the air falls much lower than can be endured by the external surface. When, however, the air is very humid as well as cold, the aqueous exhala- tion from this organ also is much lessened. I'he remarkable tolerance of cold by the lungs during exercise and a protected state of the external surface, is evidently owing, 1st, to the circumstance of the quantity of air received at each inspiration being a part only of the whole air contained by them ; and, '2d, to the changes in the capacity of the circulating and respired fluids for caloric, by which the respiratory actions arc attended. Whilst the nervous and circulating functions are unimpaired by cold, diminution of the cutaneous and pulmonary exhalations is compensated for, and injurious plethoia of the vascular system prevcnle(l, by a ])roportionate increase of the secretion3 from the kidneys and intestinal mucous surface. Owing to this activity of the internal secretions, and centralisation of vital energy, the appetite is also increased — sometimes rendered even raven- ous— digestion is accelerated, and the stomach enabled to dispose of substances which would otherwise be rejected from it. When cold acts upon the frame tor some time, and is great rela- tively to the condition of the; digestive organs or vital |)C)\vcT, a nearly paralytic state of the nerves 1 the alimentary cuiiul njay ensue, giving rise to interrupted secretion, to flatulent dilation of large portions of it, either with or without spastic con- striction of other parts, and to painful and anxious suppression of all its functions. 10. C. 0/ the effects of cold in vurions states of the system. — a. It has already been stated that the injurious effects of cold are great in proportion to the depression of vital power at the time of its action. When the surface of the body is warm, or even overheated, but not perspiring, when vascular action is energetic, or the nervous power excited, cold is well and safely borne ; but when the body is perspiring freely, and at the same time exhausted, or the depressing mental passions are in operation, it produces a much more intense and rapid effect, not only by ob- structing the cutaneous perspiration, but also by occasioning either interruption of the internal secretions, followed by febrile action, or a mor- bidly increased flow of some one or more of these secretions, according to the state of the body at the time. The experiments, however, of Fordyce, Blag DEN', and Dobson, and the practice of the Russians, show that the free perspiration pro- duced by heated air and the vapour bath, as long as the excitement of the nervous and vascu- lar systems occasioned by these continues, may be checked with impunity, and even give rise to a salutary reaction. 11. b. Exposure to cold and wet, in cases of shipwreck, &c., particularly in winter, is produc- tive of bad efi'ects, great in proportion to the rapidity with which evaporation of the moisture from the surface of the body takes place. As the temperature of the sea, in winter, is always higher than that of the air, and is not lowered, as that of the air is, by evaporation from the wet clothes of the person thus exposed, so lias it been observed on numerous occasions, and particularly in the instance recorded by Dr. CunuiK, that persons who have remained almost wholly immersed in sea-water have always lived longer than those who were exposed to the re- frigerating action either of the wind only, or of the wind assisted by evaporation from the wet surface and clothes. Protracted immeision, also, is not so injurious in salt as in fresh water. This is chiefly owing to the higher temperatuic of the former than of the latter, and partly, per- haps, to the stimulating effects of the salts dis- solved in sea-water on the skin. In cases of shipwreck it is not unusual to find, that those who had taken spirituous liquors to excess during the period of their peril are the first to fall vic- tims to the eflects of cold. This, most probably, is owing to the exhaustion consequent upon the excitement produced by spirits; to the fluxion and centralisation of vital power in the parts on which the stimulus directly acts; and chiefly to the circumstance that such excesses co-operate with cold in producing congestion of the vessels within the cranium, and apoplectic lethargy. 12. c. During states of morbidly excited vas- cular action, unattended by free excretion, or a jierspiratory state of the skin, the external or internal application of cold is beneficial, by lowering the nervous and vascular excitement to that state vviiich is requisite to a due i)erforniance of the secreting atid excreting functions. But in order that this eft'ect should be obtained, itvvill ge- nerally be neccssiiry to continue the iipplication of COLD — Patiiolocical Effects of. 357 cold for some time, or frequently to repeat it aftei | and even opposite effects, according to its in- short intervals, as reaction usually follows a brief , tensity and duration. It has already been use of it ; but as soon as the disposition of the ' shown, that, during the integrity of vital power, morbidly increased action to recur no longer is i a brief or moderate impression of cold is an in- evinced, a prolonged application of cold may be direct stimulant, and an excellent tonic remedy ; injurious by depressing the vital energy so low, that recovery either of the part on which it directly acted, or of the system generally, may be a matter of difficulty. In many of such cases, rigors will follow the too protracted or intense operation of this agent, and be the means of bringing about reaction, which, however, ma}' assume irregular or excessive states, or produce a new or modified train of symptoms. 13. d. During the exhaustion following mus- cular exertion in hot weather, and while the surface is freely perspiring, cold in any way is most intensely and rapidly injurious, particularly when it is applied to the stomach. The inges- tion of a large quantity of a cold fluid in this state has been speedily followed by death. This extreme effect has not been satisfactorily ex- plained. That inflammation may be so quickly induced cannot be admitted. It seems more probable that the sudden impression of the cold fluid upon the nerves of the stomach, together with the rapid distension of the organ, paralyses the system of nerves which supplies the digestive organs, and which is evidently that part of ani- mal organisation on which the vital manifestations throughout the frame more immediately depend. Even when cold, owing either to the less bulk of the cooling body, or to the state of the stomach and system at the time, is not quickly or intensely injurious, still it may be productive of injury by favouring the developement of inflammatory ac- tion in the stomach or liver, or by interrupting the secreting actions of these and adjoining vis- cera. 14. D. Changes observed in cases of death by cold. — QuELMALz fouud thc vessels of the brain turgid with blood, and the large veins and arte- ries filled by polypous concretions; and he refers the sopor preceding death to congestion of blood in the cerebral vessels, and effusion of serum in the ventricles of the brain. Eosen also observed thc vessels witliin the cranium engorged with blood. Cappei, states that he found the blood and fluids accumulated chiefly in the pectoral and abdominal viscera. Dr. Kellie detected, in two cases examined by him, the same appear- ances as were remarked by Quei.jiat.z, IIosen, and Capi'el ; and noticed, in addition, a blood- less state of the scalp, engorgement of the sinuses, integrity of the substance of the brain, remarkable redness of the small intestines from turgescence of the blood-vessels, and absence of tympanitic distension. 15. E, Of cold, or inidtte abstraction of animal heat, as a cause of disease. — Cold is either a pre- disposing or an exciting cause of a very great number of diseases, particularly among the poor, and during the winter and spring seasons, as J. P. Frank and Sir G. Blank have demon- strated. The injurious effects of this agent on infants and children are great in proportion to the earliness of the age at which they are ex- posed to it. I believe that more than one half of the deaths, and two thirds of the diseases, that occur among the children of the poor, are more or less caused by it. Cold will produce modified whilst a very intense or prolonged action of this agent is a direct depriment of thc vital energies, even although the rapid abstraction of much cold may inflame and disorganise the parts through which it is caused to pass. Ilencc it must be ob- vious that cold will be either a predisposing or an exciting cause of disease, according to the intensity, duration, and manner of its operation, to the con- stitution of the person on which it acts, and to the other causes and influences which cooperate with it. The same circumstances will also explain the great diversity of its effects, and its operation in determining the characters and complications of numerous maladies, even after tiieir career has commenced. 16. After what has been advanced respecting the physiological and pathological action of cold, I need not add any further observations on the manner in which it operates in the causation of particular diseases. It will be sufficient to enu- merate those which it most frequently produces, either by its unaided operation, or in conjunction with a pre-existing disposition or disorder, and with other morbid influences. Fevers, inflammations of the individual viscera; dropsies of the shut cavities and anasarca ; catarrhal and bronchitic affections; hemorrhages; diarrhoea, dysentery, and diabetes ; rheumatism and gout ; apoplexy and paralysis ; tetanus, and other spasmodic and convulsive maladies ; the obstruction of secreting and excreting functions — of the bile, of the urine, of the catamenia, and of the in- testinal excretions ; scrofulous, scorbutic, and chlorotic complaints, hardening of the cellular tissue and oedema, chilblains, and congestions and obstructions of glandular and secreting parts, are among the most common consequences of this agent. Fevers occasioned by cold alone are generally ephemeral, or of short duration, when no particular organ or function is already in fault; and the reaction — generally ushered in by rigors — is of a salutary tendency when kept within due bounds : but cold favours directly and indirectly the spread of typhoid infection ; and its action on the frame during the progress of all continued and exanthematous fevers is very often injurious, unless judiciously regulated and employed, and is productive of many of the dan- gerous complications which frequently arise in their course, as well as of the local affections that appear during or after convalescence from them. Such is more remarkably the case in re- spect of the exanthematous fevers. Dropsical and hremorrhagic effusions, although obviously depending, in many cases, on pre-existing organic change, yet often, even in these instances, have been i of Cold, Sgc Q. Curfiiis, De Gestis Alexand. Mag. 1. vii. cap. r>. — Boyle, History of Cold, 4to. Lond. 16'^3 — Wctlcl, De Frigore iMorhit'ero. Jena^, 1()95. — K/oec/;/iof, Do l'"ri- gidis Nervorum Systematis inimicis. Lugd. Bat. 17o6. — lluelmalz. Prog, quo Frigoris Acrioris in Corporeeffectus expcdit, Ike, in Haltcri Disp. Med. vol. vi. 17J8.. — Cappcl, Observ. Anat. dec. i. p. 2. — Gmelin, Voy. en Siberie, t. i. p. 381. — Gladbach, De Morbisa Vestitu insiifficientc, &c. Franc. 1762. — Rosen, Anat. p. 142. — Lconhard, De Frig. Atmosi>li. ERbct. in Corpus Huraanum. Lips. 1771. — Hallcr. I'tiysiol. l.xii. \ 12. — Cullcn, De Frigoreetejusque Vi ct Ellectibus in Corpus Humanum. Edin. 1780. — Curiic, in Edin. Med. Comment, vol. xviii. n. 37. p. 237. — Hc- herden, in Philos. Trans. 17!F) and 1796. — Piso, Do Med. Brazil. 1. i. — Parat ct Martin, Actes de la Soc. de Sante de Lyon, t. i. p. 300. — Hush, Med. Inquiries, No. !). — V. Htimboldl, Vcrsuche iiber die Gereizte Nerven-imd Mus- keltaser, b. ii. p. 224. et 238. — Giannini, in Ilarlcs N. Journ. der Med. Literatur. b. x. st. 1. p. ,01. — Roxicrc, Sur la veritable Mode d'Action du Froid, Xc. Journ. Gon. de Med. t. XX. p. 43.') — Art. Froid, in Diet, do Scien. Med. t. xvii. p. 41 — M. Bcavprc, Des Effets du P'roid, avcc un Apergu sur la Canifiagne de Russie. Svo. Paris, 1817. Translated, with additions, by .7. Clciidinning, Svo. Lond. 1S26. — A'lV/'V, On Death from Cold, 'J'rans. of Mcdico- Chirurg. .Society of Edinb. vol. i. p. 84. — CIcndinning, On Cold as a Cause of Disease, &c., Lond. Med. and Physical Journ. for June, July, and Sept. 1832. ii. Therapeutical Action of Cold. — Bartholinus, De Usu Nivis Medico, cap. 1.^. ^ 31. — De Porraa, Animadver- siones de Nivis in Potu Usu, Svo. Ifi2i. — fallisneri, Del' Uso c dell' Al)u.so delle Bevande e Bagnature Calde o Fredde, 4to. Modena, 1725. — F. Hnff'niann, De I'otus frigidi Salubritate. Halac, 1729. — liichfer, De Salutari Frigoris in Mcdioina Usu. Goct. IHV. — Bluhme, Morbo- rum Curationcs per Frigus. Goct. MIS. — I.innaus, in Amccnitat. Acad. vol. vii. No. 13ii. — Frank, Interp. Clinic, vol. i. p. 4.37. el seq. — Klclt, De Epithematum frigidorum Vi atque Usu,&c. Erl. 1794. — Born, De Cal. et Frig. Usu Med. Itost. 1804. — Ilnfcland, Bibliothek der Pract. Heilk. xii. b. iii. st. p. 3. — IVeber, Horn's Archiv. fiir Pract. Mod. b.vi. p. 237. — ./. Carrie, Med. Reports on tlie Eirects of Water, Cold and Warm, as a Remedy in Fever. Svo. Livcrp. 1797. .— iJra/iT, On the Respiration' of Cold Air in Pulmonary Diseases, A mcr. Journ. of Med. Sciences, vol. ii. (). 229. — ./. Copland, On the AiTusion of Cold Water in the 'J'reatmont of Di.scases, and of its Mode of Oi)eratiun, in Lond. Medical Gazette, vol. x. p. 39. and 78. COLIC. — Di:it. AND SvN. from kZXov, Colon. KmXdiov aXynfJia,, (jr. Colicii, Passio Colica, Dolor Colicus, EnteralL^ia, Colicodi/tiin, Tor- miiia, Auct. Var. CoUijue, Fr. Das Banchgrim- vien, die Kntik. Germ. Dolnri Colici, Ital. Belly- Ach, Eng. Classif. 1. C/f/M, Nervous Diseases; 3. Order, Spasmodic Affections {CuUen). L Vlas!;, Diseases of Digestion; 1. Order, Affecting tiie Alimentary Canal (^Good). I. (Ji.ARS, I. OitDKii (Author, in Preface). L Di i-iN. Severe ^ripiii^ pains in the lioivels, with co.flirenes.i, and often with voniiling. 2. Colic was formerly cou.sidlrcd as seated chiefly, if not entirely, in the colon; but many writers of the last three centuries have applied the term to acute pains of the bowels, attended by costiveness, and unaccompanied by fever, arising either from a primary aft'ection of them, or from disease of some other viscus in their immediate vicinity, with which they are connected, and often sympathetically affected, through the me- dium of the ganglial nerves. 3. The first mention made of the disease, by the denomination Colicus Dolor, is to be found in Cf.lsus and Pliny; and, according to SLNNEnr and Tronchin, the same name was used by Themison and PniLON, physicians of the Au- gustine age, when, ns Sprengfl justly supposes, colic must, from ti)e manners of that period, have been a common complaint. But, although the term colic appears not to have been in use, it cannot be supposed that such affections were before unknown. It is more probable that they were included under the general appellation of abdominal pains, in use from the time of Hippocrates. The greater number of modern writers have divided the disease into certain species of varieties, according to the presumed nature of its exciting causes and pathological states. Sauvages presents us, accordingly, with no less than 22 varieties. Dr. Cvllen arranges the idiopathic states of the colic into, Lst, The Spasmodic, either with stercoraceous vomiting, or with inflammation superadded ; 2d, The Colic of PoitoH ; 3d, Colic from continued constipation ; 4th, From acrid matters in the bowels ; 5ih, Fron> retention of the meconium ; 6th, From stricture of the bowels ; and, 7th, From the obstruclion occa- sioned by calculous formations. Dr. Good adopts a nearly similar division to the foregoing, preserving the 1st, 2d, 3d, and 6th varieties; and substituting for the others. Colic from Surfeit, and Colic from the generation of Flatulence — C. Ci- fcar/a and C. Flatulenta. ]\I. Pa riset gives the fol- lowing varieties : — the flatulent ; the stercoraceous ; the bilious; the inflammatory ; the ha^norrhoidal ; the menstrual ; the spasmodic ; the metastatic ; from calculous and other hard bodies ; the ver- minous ; from organic changes in the bowels ; and from lead. ]\f. Ciiomel divides the disease into nearly the same varieties, and adds to them that arising from acerb or acid fruits, and fer- mented li([uors, or Colique Ve^^ilale. The only additional arrangement of the forms of colic, wiiicli deserves being noticed, has been given by Scumidtmann, as follows: — A. Inflammatory colic ; B. Sanguineous or plethoric colic ; C. From substances passing through or lodged in the bowels ; D. From the metiistasis or repres- sion of other diseases ; E. Flatulent colic ; and F. Nervous colic. Each of these comprises several varieties, according to tiie exciting and proximate causes. 4. Colic, according to the extended accept- ation of the word, arises from so many causes, and presents so many morbid relations, that a satisfactory arrangement of its different states is by no means an easy matter. 1 shall, however, attempt to group into distinct species those forms of the disease which resend)le each other most nearly, or which aiise from intimately related causes, noticing the peculiarities or modifications presented by the principal varieties. Those forms of colic which chiefly, or more imme- diately, depend upon a morbid stale of the COLIC — Its Pathology first under 361 intestinal canal will come first under consi deration ; and next, those which are symptomatic of, or complicated with, other diseases. In treating of the former, those states which are the most simple, and apparently consist of func- tional disturbance of the bowels, will be first noticed, and subsequently those which proceed from more complicated or organic causes. As I agree with BunsERt, Cullen, Goon, Anr.n- cROMBiE, Monro, and others, that ileus is often either an aggravated state, or advanced stage, of colic, or a consequence of organic or other causes aflecting the calibre or canal of some part of the small or large intestines, I shall treat of it at this place, and after the more simple or less dangerous forms of colic have been discussed. 5. I. Colic chiefly and primarily from FUNCTIONAL DISORDERS OF THE BoWELS. i. Simple Colic. Svn. Colica Convulsira, Bonet ; C. Spasmodica, Iloflmann ; C. Fla- tuleiiiu. Good, &:c. ; C. Nerveiise, Chomel ; C. Nervosa, et C. Spasmodica, Schmidtmann. Classif. I. Class, I. Order (Author). Defin. Acute pain in the bowels, with occasional partial remissions, Jiatulent distension, or spasmodic cojitractions, or both at the same time, relieved by pressure and the expulsion of Jiatus. 6. There appear to be three morbid conditions of the intestinal canal, which more or less exist in the simplest as well as in the most severe and complicated forms of colic, and which evidently depend upon depressed vital power of the digestive canal:' 1st, Morbidly increased sensibility and irritability of some part or the whole of the bowels ; 2d, Irregular distension and spasmodic constriction of different parts of their canal ; and, 3d, More or less copious generation of flatus in their tract, occasioning great distension and irregular reaction of the muscular tunics — the second morbid condition adduced. Accord- ing as either of these states predominates above the others, the attack assumes a nervous, a spasmodic, or a flatulent character ; and it has thus acquired these specific appellations from different autliors. 7. A. The nervous form of the complaint occurs most commonly in females, and in persons of a nervous and irritable temperament, passing a sedentary or indolent life, and of a costive habit of body ; sometimes without any evident cause, but often after inattention to the state of the bowels, exposure to cold, or some mental emotion or excitement. The attack is usually sudden, and the pain is felt in one or more places in the abdomen, but sliifts its place frequently, and is exacerbated at irreguhr intervals. The face is pale and anxious ; the abdomen is irregularly contracted, and pressure of it often affoids slight relief. During the severity of the pains, a cold perspiration is forced out on the surface, and leipothymia, or sinking, is frequently complained of. The bowels are constipated, and borborygmi arc constant. The duration of the attack is usu- ally short — from one to several hours; and it generally terminates favourably ; but repeated returns of the affection are very common, upon errors of diet, and from mental inquietvide. 8. B. The more /^n(!(/e)(t form of colic presents greater distension of the abdomen, the expulsion of flatus giving ease. The distension and pain are often traced along the course of the colon and are most complained of in the situation of the sigmoid flexure and cascum. The quantity of flatus generated is often very great, and it evidently proceeds chiefly from irritation of the mucous surface of the bowels, giving rise to the separation of a gaseous fluid from the blood by the vessels of this surface ; the matters retained in the prima via being insufficient to furnish, by their decomposition, — granting that they undergo this change, — so great a quantity of flatus as is ge- nerally voided. Owing to the irritation produced by the flatus, the bowels are inordinately dis- tended in one part, and irregularly constricted in another ; the part which was contracted, losing its tone, and becoming, after a time, greatly dis- tended, and the distended portion experiencing, at intervals, irregular spasmodic constrictions. Thus the retained flatus is propelled from one part to the other, occasioning griping, shifting pains, and rumbling noises, or borborygmi, of the abdomen. The bowels are always constipated ; and when evacuations are procured, they chiefly consist of hard lumps, and are accompanied with the escape of much flatus ; the secreting functions of the bowels being evidently impeded. This modifica- tion of the complaint, as well as the preceding, is frequent in hysterical females, and persons of in- dolent habits, living much on vegetable diet, whose intestinal and biliary secretions are scanty, acrid, or otherwise vitiated ; and their digestive functions weakened by indulgences. 9. C. The more spasmodic form of colic is in many cases merely a somewhat aggravated state of the preceding ; the extremely painful spasmo- dic constriction predominating above the flatu- lent distension, and extending more or less to tlie abdominal muscles, giving rise to severe and irregular contractions, often with retraction, of the abdominal parietes. Whilst the two pre- ceding varieties are very seldom attended by sickness or vomiting, unless in the severest states, this variety is frequently accompanied with this symptom ; and, in its worst forms, vomiting upon taking substances into the s'tomach, is very gene- ral. Constipation is also very obstinate; inju- dicious attempts at relieving it often increasing the vomiting, and converting simple colic into either enteritis or simple ileus. This form of colic often attacks those of spare habits of body, of the hypochondriacal and bilious tempera- ments, who live chiefly on coarse vegetable food, and are addicted to fermented or spirituous liquors. 10. ii. Colic from the injurious Nature or Quantitu of the Ingesta. — C. Acci- dentalis, Willis and Cullen ; C. Vegttale, Chomel; C. Cifcin/u, Good. Defin. Severe twisting, griping pains in the abdomen, witfi vomiting, and rigid contractions of the abdominal parietes, folloived, in some cases, by griping alvine evacuations, mid looseness. 1 1. ^4. This species of colic presents various mo- difications, according to the nature of the offend- ing cause ; and it has been accordingly differently described and named. Its states vary greatly in severity, according to the nature of the ingesta occasioning it, wliethcr those of a solid or fluid kind. It may be here remarked, that the colic of Poitou, or colica Pictonnm (which name has been very generally conibunded with colica pictorum, or painters" colic), and the form of the 362 COLIC, BILIOUS disease endemic in some other countries, although in many respects the same as lead or painters' colic, are evidently partly occasioned by the crude wines, new spirits, and the acerb and acid nature of the liquors in common use, as well as by lead, which is sometimes dissolved in them. (See Lead Colic, § 26.) Citesius, Piso, Car- dan, Sennurt, VVepfer, and many recent au- thors, have imputed the endemic of Poitou, Madrid, and other places, entirely to the nature of the ingesta, into many of which mineral sub- stances could in no way enter. The evidence furnisiied by their writings, and in the treatises of Grashuis and TnoNCiiiN, and my own expe- rience, favour the opinion that acid and acerb liquors are often concerned in the production of colic, without the aid of lead ; to which, however, the most severe cases, and those accompanied with paralysis, are attributable, as shown by Sir G. Bakek. Dr. Bateiuan doubts the power of these ingesta, independently of their impregna- tioti with lead, to produce the disease. His opi- nion is, nevertheless, opposed by the fact, that a large proportion of the cases of colic which occur in districts where acid and spirituous liquors are much used, is not attended by the paralytic and other symptoms characteristic of lead colic, and that many of them run on to dysentery. AVhether or not the colic stated by K;empfee to prevail in Japan, owing to the use of fermented beverages prepared from rice, depended on the presence of lead, cannot be ascertained. I had means of knowing that the colic so prevalent among the natives of Africa is clearly owing to the excessive use, particularly when over-heated, fatigued, or covered by perspiration, of the acid beverages prepared from the juice of the palm and other trees, and in the making of which no sort of metal utensil, or of glazed pottery, is at all em- ployed. LiNN-T-us imputes the prevalence of the complaint among the Laplanders to the use of stagnant water, containing small worms, &c. In various parts of the north of Europe, where butter-milk whey, and vegetable infusions, are fermented into very acid liquors, and used for com- mon drink, most severe attacks of colic follow their ingestion in a cold state, particularly when the body is perspiring. Dr. Chisholm attributed tlie prevalence of colic in Devonshire to tlie abuse of cider in summer and autumn, by the labourers, when busily engaged in the hay and corn harvest — the cold acerb cider inducing a spasmodic state of the bowels in persons over- heated by laborious exertion. 12. B, Various articlosof food will occasionally disagree from some peculiar idiosyncracy, the articles themselves not being injurious. Such is sometimes tlie case, when a person, who has been living sparingly, indulges in a too full meal, or partakes of a substance to which the stomacii, the functions of which are perhaps weak, is unac- customed. Pork, cooked very soon after being killed, particularly if used as an article of diet in warm climates, is very apt to produce attacks of colic, followed by griping evacuations from the bowels. A similar effect often is induced by blown or tainted meat, mildewed wheat or rye, and by cold, acerb, indigestible, or unwholesome fruits, as cucuml)i;r, melon, ^c. The injudi- cious use of cold griping purgatives, as senna, &c., will often, if not properly combined witii — History, &c. of. other medicines, occasion this state of colic in hypochondrial, bilious, or phlegmatic habits. 13. Most severe effects often follow the in- gestion of poisonous fish, muscles, lobsters, mush- rooms, &c., and of the minute fungi sometimes formed on smoked meat and sausages, or on cheese. But the colic which is produced in these cases is the least dangerous part of the mischief; the affection of the nervous and vascular systems being often of still greater importance. Instead, therefore, of considering the effects of these sub- stances as varieties of colic, as Dr. Good has done, I have viewed the disorder of the stomach and bowels as a part only of the circle of morbid actions they occasion, and have therefore treated of them in the article poisons. 14. The presence of arsenic in wines, or the fumes of this metal ; preparations of antimony, copper, or zinc ; and the accidental solution of these, or conversion of them into a salt by sub- stances about to be received into the stomacii ; are often productive of disorder, of which colic is one of the most prominent features, generally attended by vomiting, and sometimes followed by loose- ness, 01' by tenesmus and dysenteric symptoms. Lead colic is very often occasioned by the in- gestion of the metal in some state or other by the mouth, and should therefore be treated of at this place, but the peculiarities of this variety require for it a separate consideration. Many substances occasion, when taken in hurtful quantities, effects of which colic is among the most prominent; but which, as they present certain diversities, are described in a separate article. (See Poisons.) 15. C. Infants, especially from birth to the termination of teething, and occasionally older children, are very liable to this form of colic. The state of the mother's milk, arising from the want of health, or manner of living, the irritation connected with dentition, too early feeding, too much or inappropriate food, acidity of the prima via, resulting therefrom, and want of attention to the bowels, are the most common causes of this complaint among infants. In children it is often produced by acerb or unripe fruit, and by cold. In very young subjects it is charac- terised by more or less flatulence, screaming, tossing of the arms, and forcible drawing up of the lower extremities upon the abdomen, with vomiting, costive bowels, and greenish, offensive, and acid evacuations ; followed by looseness ; or free evacuations attended by tormina. 16. iii. Colic from a morbid State of the Secretions poured into the Biuvels, and Retention of the Excretions, — Colica Atra- liiliaris, Meyserey ; C. Bitiosu, Hoffmann; C. Stercorea, Ettmuller, Sauvages, and Cul- len ; C. Pitaitosa, Sennert, Kernel, &c. ; C. Stercorale, et C. Bilieuse, Pariset ; C. Constipata, Good; C. Biiiosa, et C. Ster- coracen, Schmidtmann ; Hepatic Ileus, Mus- grave ; Colica Madridensis, et C. Ilispaniensis, Auct. Var. Dry Belly-Ach. Deein. Severe griping pain, with porraccoits or hilious vomitings, constipation, or scanty evacuu' tions, and often loith hiccup, tension of the ab- domen, and restlessness, the motions procured presenting various morbid appearances. 17. This species of colic has been diflfercntly de- scribed and named us above, according to the views entertained respecting its nature. We COLIC, BILIOUS have seen that the Jirst variety of the disease consists of various morbid states, chiefly charac- terised by deficient function and altered sensibility of the bowels, &c. ; and that the aecond variety is principally occasioned by the nature and quan- tity of the ingosta. The variety which I next have to consider comprises certain forms of dis- order arising mainly from the morbid condition of the secretions and faecal matters contained in the bowels, but aided by other causes ; and it may be divided into, — a. The colic of infants, caused by retained meconium ; — b. Colic arising from accumulated f£eca! matters in the bowels ; and, — c. From the irritation of morbid secretions poured into the intestines from the liver, &c. 18. ^. The colic which is owing to the reten- tion of the meconium {C. Meconiaiis, Sauvages and Good), in new-born infants, is chiefly met with in those who have either not been sufficiently early put to the mother's breast ; or who have been suckled by a nurse, or brought up by hand. The milk which is first secreted, pos- sesses purgative qualities, intended by Nature to promote the expulsion of the secretions, which had accumulated in the prima via during the lat- ter period of foetal life ; and when the infant en- joys not this requisite kind both of nourishment and medicine, the meconium is retained, becomes viscid, acid, and irritating to the bowels, occa- sioning costiveness, distension, screaming, drawing up of the lower extremities, sickness, &c. 19. B. It is evident that the retention in the caecum and cells of the colon, of those excre- mentitious matters which require to be thrown off from the bowels, will be productive of more or less disorder. Such retention usually occurs very early, and in advanced life ; in those who pass an indolent existence, or are engaged in sedentary occupations ; in persons whose bowels are torpid from debility or exhausted sensi- bility ; in females who are pregnant, or who are of an advanced age ; and in men who have old herniaB. It is often preceded by indigestion, cardialgia, constipation of the bowels, and ful- ness about the cajcum, the sigmoid flexure, and occasionally the whole course of the colon. In many cases, large accumulations in the C jxum or Colon (see these articles), maybe detected by manual examination. Sickness and vomiting, how- ever, seldom come on until abdominal griping pain has been for some time complained of, and the stomach has been irritated by acrid purgatives. Later in the complaint, the abdomen becomes tense, tumid, and painful on pressure; the pulse accelerated ; and the tongue, which was from the commencement loaded at the root, more foul or furred. This form of the disease is very apt to terminate in dysentery, enteritis, or ileus. 20. C. The form of colic which occurs, and even prevails, in some of the West India islands, has often been confounded with lead colic, from the supposition that the new rum drunk in these islands contains lead in solution. Rlr. Quier, Dr. Chisholm, and Dr. Tiiojison, who resided long in the West Indies, state that this disease is not BO common as formerly in these islands, owing to the improvement in morals, and the use Of warmer clothing; and that nothing is more erro- neous than attributing it to the poison of lead. These physicians refer it to the intemperate use of spirits, and to alternations of heat and cold. — HisTonY, &c. OF. 363 Mr. QuiEn and Dr. Musgrave, who have given a very detailed account of this complaint as they observed it in Jamaica and Antigua, where it is of frequent occurrence, state positively that lead is not concerned in its production. From the history they have given of this endemic colic of the West Indies ; and from the descrip- tions of the colic, which is perhaps the most common disease in INIadrid and several provinces of Spain, furnished by MM. Pascal and JMak- QVAND, who treated many hundred cases of it in the French army that occupied Spain during the peninsular war, and in 1824 — all which ac- counts are now before me; I conclude that the colic of Spain and that of the West Indies depend upon the same causes — evidently of an endemic kind ; are characterised by similar symptoms ; run the same course, evince similar lesions, and are cured by the same treatment. Indeed, I have sel- dom met descriptions of any disease so much alike as those furnished by Dr. Musgrave and by M. Marquand, who himself had the complaint, the causes and treatment of which he has so ably in- vestigated. After examining the causes to which writers, particularly Hoffmann and Thiery, and others copying them, have imputed this afl^ection, viz. to lead and metallic substances dissolved by acid wines, &c., M. Marquand states those to which the natives attribute it; namely, the use of vegetable acids and unripe indigestible fruits ; large draughts of wine and water, and of much milk ; and insufficient clothing on the trunk of the body and abdominal regions. But these causes, he remarks, are in operation in many places of Spain and Portugal where colic is rare, and there- fore some endemic cause not yet discovered must be in operation. IM. Larrey imputes it to at- mospheric vicissitudes and acid beverages, and designates it " Colique bilieiise vheumatismule ;" iMM. Aulagnier, Lidron, and Jacob, who have had extensive experience of this disease in Spain, concur with M. JMarquand in denying the in- fluence of lead in producing it ; and think that its causes are not yet fully ascertained. The nega- tive information furnished by these writers, the character of the symptoms, and particulaily the appearance of the evacuations, would lead me to infer that, in both the colic of Spain and the colic of the West Indies, endemic causes, — especially those which proceed from the soil, and produce intermittent and remittent fevers, — impede the functions of the liver and intestinal surface, and occasion an accumulation in the hepatic ducts^ gall-bladder, and prima via, of acrid or otherwise morbid secretions, which, owing to their irritation, or to concurrent or determining causes, give rise to a series of painful and diseased actions, and im- perfect or abortive attempts at their evacuation. The symptoms referrible to the liver — its con- gestion — the signs of irritation about the duo- denum, the vitiated dark appearance of the stools, and the relief obtained from free alvine evacua- tions, are proofs of this position. 21. Symptoms. — The patient generally experi- ences premonitory symptoms before the accession of the attack. These consist of dull and pressing pains in the whole course of the colon, but parti- cularly in its arch ; loss of appetite ; irritability of temper ; and difficulty in evacuating the bowels, which, however, are not costive. The patient has often several evacuations in the course of the 364 COLIC FROM LEAD — History, &c. of. day, but in small quantity, and with much flatus ; and he experiences less distress in bed than when he is up. The tongue is moist, and loaded only at the root ; and there is much thirst. These symptoms usually continue two or three day^: about the third, the patient has no longer any desire to. go to stool, and evacuates no more flatus ; but the pain becomes more severe, and more fixed and constant at the epigastrium, with a twisting pain at the umbiUcus : the counte- nance is pale, and expressive of pain and anxiety ; the pulse is slow, small, regular, and constricted, but not febrile ; the skin is dry, but not hot ; and the urine is scanty, but not otherwise unna- tural. 1 he patient often sits with his arms crossed over, and pressed upon, the abdomen, and the trunk bent forwards. If he be in bed, the thighs are pressed up upon the belly. Along with these symptoms, and generally soon after the accession of constipation, porraceous or bilious Vomitings come on, commonly in small quan- tities, mixed with glairy matters, or those last taken into the stomach, and accompanied with hiccup. There is no sleep, but a continued restlessness : the pain is now nearly constant, and most severe, particularly about the epigas- trium and umbilicus, and is not ameliorated by any position. As the malady proceeds, the thirst increases ; and the fluids taken generally aggra- vate the hiccup, and are soon thrown ofl^. The eyes are sometimes slightly yellow, and the whole surface rather sallow. The patient is distressed by the continued severity of the pain, the hiccup, and the want of sleep ; wandering and delirium come on, sometimes with deafness, epileptic convulsions, and rarely with fa-culent vomiting ; these latter symptoms generally portending a fatal result. 22. This disease, left to itself, Usually runs its course in eight or ten days, and rarely extends beyond the fifteenth. Pain or uneasiness in the right hyponchondrium is often felt some time before the attack, and occasionally not until the advanced progress of it. In some cases, the pain and vomiting cease, upon the free spon- taneous excretion of flatus, with dark, hard motions : but occasionally they return after a short time, and black atrabilious matter is thrown off the stomach. The discharge from the bowels is generally very morbid, ofl^ensive, and of a dark, blackish, or deep green colour. In other cases, where the patient has been neglected or improperly treated, chronic debility, with maras- mus, and, more rarely, paralysis, supervenes, and usually terminates fatally. The abdomen is sel- dom much retracted, excepting about the umbili- cus ; but, at the last or fatal stage of the disease, it is much distended. The bowels usually resist the action of the most powerful purgatives at its advanced period, and injections are thrown up or retaineil with difficulty. 23. Prognosis. — a. A favourable issue is in- dicated by free evacuations, followed by amelior- ation of the abdominal jiain and vomiting, by the circumstance of the pulse remaining below 100 beats in the minute, and the non-superven- tion or subsidence of hicoip. h. An inij'avoiir- alde result is preceded by more or less tender- ness, tension, and tumefaction of the abdomen ; by a pidse ahovc 100 ; by obstinate constipation, and immediate return of the injections; by the severity and continuance of singultus ; by dryness of the tongue, and increased restlessness and tossing. 24. Dissection has thrown little light on the nature of the disease. M. Mauquand, whose experience was extensive, considers that what- ever change of structure is observed, is merely a contingent circumstance, or accidental com- plication. M. Pascal states, as the result of the examinations he made of six fatal cases, that little or no lesion was observed in any part of the alimentary canal, excepting slight redness of the mucous surface of the duodenum : the gall-bladder was loaded with thick bile; but the other viscera were natural. He further states, that he found the sympathetic ganglia injected. A perusal, however, of his description of the ap- pearances presented by them, impresses me with the belief that what he considered to be unusual vascularity, was not more than they always present in the healthy state. 25. iv. Colic from the Poison nf Lead. — Syn. Colica Saturnina, C. Pictorum, C. Pictonum, Auct. Var. C. Rhachialgia (j5a;^(aXyia, 6'/)uig-,4c/i), Astruc, Good ; C.du Poitou, C. de Plomh, C. Metallique, Rachialgie Metal- liqne, Auct. Gall. Bleicolik, Trocken Colick, Germ. Devonshire Colic, Painters' Colic, Lead Colic, S<;c. Defix. Dull remitting pain, becoming constatit and violent, extending to the hack and vpper and lower extremities ; vomiting, obstinate constipation, often followed by paralysis. 26. I have already noticed the fact of this disease being often confounded both with the form of colic produced by acid and acerb in- gesta (§ 11.), and with that depending upon a morbid state of the secretions poured into the intestinal canal (§ 20.). Lead colic chiefly attacks house-painters and plumbers, workers in the different preparations of lead, glaziers of earthenware, miners, ornamentnl and water- painters, gilders, and rarely chemists and print- ers. It is very probable that the colic so pre- valent in Devonshire, Poitou, and, according to TnoNCHiN and Wanstroostwyck, in Haarlem and Amsterdam, arises in some instances from a portion of lead contained in acid beverages, and possibly from the water used for domestic pur- poses; but that the endemic colic of the West Indies and Spain is occasioned by lead, as many suppose, has been disproved, as we have seen, by the more accurate observations of modern en- quirers, especially directed to this point. Lead colic arises not only from the introduction of the mineral into the system along with the ingesta, but also from its oxides being allowed to remain in contact with the surface of the body ; as in the case of workers in lead, as shown by Lentin, IJitAMBiLi.A, Sir Ci. Baker, and Dr. IIi;vnolds; and from the volatilised fumes of lead floating in the air, in recently painted apartments, as observed by Pehcivai,, Hencrel, Gardanne, ]?AnELi,Y, and Goon. It is extremely probable that lead produces a more injurious action upon some constitutions than upon others ; and that Us oxides and sub-salts are more injurious than its acetate. The most (juickly, and some- times the most powerfully, injurious operation of lead is when its oxide is mixed principally with turpentincj for the puiposes of house- COLIC FROM LEAD ^ History, &c. OF. 365 painting. Tiiis spirit carries along with it, (.luring its volatilisation, a portion of the oxide, and thus poisons the respired air, thereby affect- ing the respiratory nerves and even the blood itself. Soon after Sir G. Bakeu's investigation of the effects of lead, and of the substances which either contained, or might by possibility contain it, was made public, every thing which came in contact with lead in any form was viewed with suspicion. Dr. Peucival first demonstrated the folly of these apprehensions; and although the water which supplies a million and a half of per- sons in this metropolis passes through leaden pipes, and is long retained in leaden cisterns, which are often allowed to become foul, yet, I believe, that no case of lead colic occurs from this cause, excepting in those who are affected by lead in a different and manifest manner. Dr. Batemax never met with a case in London which could not be traced to this source ; and I certainly never did, notwithstanding the readiness witli which the effects of lead are produced in some persons. Although lead is thus the efficient cause of the complaint, it is not always the only cause. Thus, the acid beverages or spirits in which the food is taken may determine its effects ; or an attack may be induced, in a person imbued with tlie lead poison, by improper ingesta, spirituous liquors, exposure to cold, and by sulphureous waters, or sulphuretted medicines, and cold grip- ing purgatives. Cases have been recorded by Dr. Wall and Sir G. Baker, where the external medical use of the preparations of lead occasioned the disease, but such are of rare occurrence. 27. Symptoms. — Lead colic usually com- mences with obscure pain of the abdomen, which becomes, at first, at intervals, so severe, that the patient screams, tosses himself about, and vainly seeks a posture that will lessen his sufferings. Some- lie for a while on the abdomen, and others press upon or rub this part with the hand. The pain is generally greatest at the pit of the sto- mach, and as the disease proceeds, extends to the back, upwards to the arms, and downwards to the loins, thighs, and legs. A twisting pain is also generally felt about the navel, which is at first drawn inwards ; and cutting pains shoot at times with great violence to both hypocliondria and iliac fossaj, and through the abdominal mus- cles. The voluntary muscles often become so sore that they cannot bear the slightest pressure ; and the pain frequently alternates between the stomach and bowels and the external muscles. Sickness and constipation are early symptoms, — the matter thrown off the stomach consisting of a slimy fluid, either with or without acrid deranged bile, which is continually being secreted, accu- mulates, irritates, and is evacuated. To these are generally added bitter eructations, hiccup, severe lieadach, pains of the wrists, hands, ancles, soles of the feet, &c.-, and frequently of the shoulders and neck. These symptoms are aggra- vated during the night, depriving the patient of a moment's repose. The pulse is not, at first, affected — sometimes in no measure throughout the disease ; in many cases it is below the usual standard, and in others quicker and weaker, more rarely fuller or stronger. The tongue is pale, moist, and soft, without erection of the papillre. 'I'he skin is commonly soft and moist ; it is rarely hot. Tiie urine is various, but more frequently copious than otherwise. Costlveness continues as the disease advances ; sometimes a gripino- disposition to stool occurs ; and if any faeces are passed, they are scybalous and hard, resembling- sheep's dung, and are mixed with a dirty watery fluid containing a dark slime, and occasionafly a little blood. M. Merat analysed the matters eva- cuated, but could not detect any lead in them. The abdomen is insensible to pressure ; in some instances rigid and knotted ; but in the latter, stage often distended and slightly painful, chiefly from the distension of the bowels, and affection of the muscles. In the cases which have occurred in my practice, distension of the abdomen was as frequent as retraction, owing evidently to inflation and f3?cal engorgement of the colon, the course of which could be distinctly traced under the abdominal parietes. j\I. Andral has also met with a similar state of this cavity. In some cases I have remarked considerable retraction around the umbilicus, while all the rest of the abdomen in the course of the colon was greatly distended. Dr. MoNno states that the sphincters of the bladder and rectum are sometimes so con- tracted that the urine and fseces cannot be voided. I have observed this chiefly as respects the sphinc- ter ani — a clyster pipe being with difficulty introduced. If the complaint be not soon ameli- orated, the pains of the back, loins, and limbs become more violent, and are attended by ex- treme weakness, tremulousness, and even partial or complete paralysis, particularly of the extensor muscles. In some cases, dyspnoea, palpitations, and a short dry cough, are complained of, seem- ingly owing to the pressure of the inflated colon upon the diaphragm ; and occasionally epilepsy, coma, or even apoplexy, supervenes. 28. Duration, Complications, and Prog7ios!s. — A. The duration of the attack varies from two or three to twenty-five days. M. Ranque found that, out of 147 cases, 129 recovered between the second and the thirteenth day of treatment, and the remainder before the twenty-sixth day. But relapses, or rather returns, of the complaint are most common. I have met with instances of a ninth and tenth attack ; and more numerous seizures have occurred in the practice of others. In more unfavourable cases, the disease continues for weeks, or even months, with occasional in- termissions ; but such may be viewed as a suc- cession of attacks, and occur chiefly in drunken workers in lead — addiction to spirits aggravating and reproducing the affects of lead on the system. 29. B. This disease is sometimes complicated with epilepsy ; more frequently with palsy, in which it often terminates ; and rarely with in- flammation of some one of the abdominal viscera, and with mania or delirium. 30. C. The prognosis is favourable when the symptoms are mild, or are ameliorated by treat- ment ; but it should be given with caution and reservation when the attack is very severe, is attended by hiccup, by obstinate and continued vomiting, by tremulousness, and by distension of the abdomen. It should be unfavourable, if complications (§ 29.) appear in its course ; or if deafness, blindness, ffecal vomiting, and symp- toms of ileus supervene. 31. Appearances ohserved on dissection. Lead colic is most commonly fatal from the complications that occur in its course. In its 366 COLTC AND ILEUS simple state it selJom terminates in death. The examinations made by Senac, Astruc, and BoRDiEu, furnish nothing satisfactory. Stoli. observed the gall-bhidder loaded with dark bile; Sir G. Baker describes the bowels as being per- fectly natural throughout, and the muscles pale and wasted. De Haen states, that he found contractions of the colon and caecum in all the cases he opened. j\l. Merat examined seven cases, which he says presented the same appear- ances as those described by De Haen ; whilst M. Andral details six cases, in all of which no such contractions were observed, nor any otiier morbid change of the alimentary canal. J\I. Louis, also, found no alteration in the bowels. Most of those who die of this disease are carried off in epileptic convulsions, or have had paralytic symptoms. The state of the cerebro-spinal axis is hence deserving of examination. M. Andhal, however, states, tluit he detected no lesion of the brain, nor of the spinal chord, nor of the volun- tary nerves. A case I had an opportunity of examining confirms the observations of Sir G. Baker and Andual.* 32. II. Colic arising most frequently froaM Change of Structure or relative Position of the Bowels. — Classif. IV. Class, I. Order (Attthor). i. Colic from Mechanical Obstruction of the Canal of the Bowel. — Syn, C. Calculosa et C. Scirrliosa, Bonet, Chomel, Lamotte ; C. Constricta, Good. Defin. Costive, Jiatulent state of the bowels, attended by passing colicky pains, relieved bii liquid, difficult motions, and often accompanied by a sensation of constriction ; tumour or difficulty in a particular part of the abdomen. 33. Considerable mechanical difficulty is often experienced for some time before a severe attack of colic or ileus takes place. A patient, whom I have long attended for slight colic pains, and irregular state of the bowels, without full or satisfactory evacuations, states, that a sensation of soreness in tlie situation of tiie arch, and of difficult passage to the left flexure of the colon, with painful distension about the cEeeum and right side, are often felt shortly before an evacu- ation. Dr. Monro remarks that stricture of the bowels in its early stage occasions costiveness, alternating with diarrhoea and colic pains. If the obstruction be low in the bowels, solid faeces are eitiier not passed, or they are of small quan- ■ Pathology of. • Mr. BvAM and myself recently examined the body of a painter, wlio died at the age of 78. He had been a very strong man, and in constant employment all his life up to a few days before his death. He died of haemateinesis, from disease of a branch of the coronary artery of the stomach. The substance of tlie heart was soft and flabljy. Tlie small and larj^e intOftincs were sound ; the liver was studded with collections of a pultaceous semifluid matter, of a greyish white colour, contained in very thin cysts, from the size of a hazel nut to a walnut, the portions of liver surrounding them being softened, and of a dark red colour. The top of the anterior mediastinum, and spaiu' behind the top of the sternum, contained an immense mass, nearly the size of the close/»'ss«(?t/«, especially in the form of the couiplaiiit procc.'eding from acidity. 56, The culic if infants has been stated to proceed chiefly from acidity of the prima via oc- casioned by the quality or quantity of the ingesta (§ 15.). The carbonates of the alkalies, mag- nesia, and the preparations of chalk or lime, with carminatives and cordials, are therefore required. (See F. 616 633.). A combination of magnesia with the oxide of zinc is prescribed by RrcHXER. Magnesia, soda, or ammonia, in the aqua foeni- culi dulcis or aq. anisi, and ai'terwards a dose of fresh castor oil; the semicupium, and, if it be re- quisite, an emollient or oleaginous enema, to which a little extractum rutae, oleum anisi, or linctura as- safoetidffi, has been added, will generally remove all disorder. If, however, these do not soon give relief, the enema sho\ild be repeated, and the abdomen rubbed with an antispasmodic lini- ment (§ 51, R 135.). If the complaint occur about the period of dentition, the gums ought to be examined, and scarified, if any fulness or redness be remarked in them. If these means fail, those recommended in the section on voh-ulus {§ 77. et seq.) must be put in practice. 57. C Treatment of colic from morliid secretion, (Sj"c. — a. The colic occurring in 7tew-born infants, from retention of the meconium, is generally soon removed by a dose of castor oil ; and, if it fail, by an oleagmous clyster, or by one containing a tea-spoonful of honev and another of common salt, assisted by the semicupium, and the means stated above (§56.). — b. CoVic (rom accumula- tion offucal matters (§ 19.), or from constipation of the bowels, obviously requires purgatives and oleaginous or saponaceous injections. Stoll prescribed emetics in this form of the complaint, and was followed in the practice by Sims and HosACK ; RivEiiius gave rhubarb and the tur- pentines ; and B.\glivi and Sydenham advised cathartics and anodynes in oleaginous emulsions. The preparations of sulphur, in doses sufficient to act on the bowels, have been praised by AonicoLA and Rave ; and frictions and bandages of the abdomen have been recommended by many eminent writers. In this form of the disease, more advantages will be obtained from the repeated exhibition of medicines of a simply relaxing operation (see F. 82. 96. 430.), assisted by large oleaginous and saponaceous injections in the manner recommended by Dr. Maxwell (see § 77.), than by cathartics, which may irri- tate or inflame the upper parts of the digestive canal, before they can reach or affect the parts where obstruction exists. Spirits of turpentine, with olive or castor oil, when perfectly difl'used and suspended in a suitable vehicle, are ex- tremely efficacious in this state of disorder. An ounce of the spirits, with two or three of either of these oils, in about sixteen or twenty-four ounces of a mucilaginous decoction, should be slowly but steadily thrown up by means of the enema apparatus, the pipe of which may be pro- vided with a guard, to prevent the regurgitation of the fluid. In order to facilitate the passage of this enema along the colon, tiie patient may be placed in bed, with the pelvis considerably elevated, and friction of the abdomen may be employed during and after the injection of it. If there be no nausea, the following may be taken, and repeated in six or eight hours, if it be requisite : — No. J3G. R Potassx Uitart. in pulv. 5jss — 5ij. ; Mag- nesiEB Calcinata; 3 ss, ; Confect. Sennaj et Syrupi Zin- giberisaa 3 ij.; Olei Anisi 111 iij. M. Fiat Electuarium. If nausea be complaineJ of, a full dose of ca- lomel only may be exhibited ; and, after a few hours, the above electuary given, and the injec- tion repeated ; or the treatment recommended in the article Constipation may be adopted. If tenderness and tension of the abdomen, with hard, constricted, oppressed, or quick pulse, be present, inflammation should be suspected, par- ticularly if vomiting also exist. In this case blood-letting must be practised, and the disease treated in ail respects as stated in the articles on Ii)Jiammation o/' f/ie Intestines and Peritoneum. 58. D. The West Indian and Madrid colics (§ 20.). — a Dr. RIusGRAvE, whose experience of West India colic has been extensive, recom- mends ten or fifteen grains of calomel to be exhibited immediately, and afterwards five grains combined with a cathartic, lie likewise advises a dose of a purgative mixture to be given in the intervals, if tlie stomach will retain it. The in- tentions this physician proposes are to evacuate the bowels, and to affect the system with mer- cury. As soon as the mouth becomes affected, the calomel should be omitted, and alvine dis- charges promoted. When the spasmodic action of the bowels is severe, and signs of vascular excitement appear, blood-letting ought to be prac- tised ; this evacuation tending both to relax the bowels, and to promote the absorption of the calo- mel. In addition to these means, the warm bath, and terebiuthinate enemata, should be employed. 59. b. The Madrid colic (§ 20.).— M. Mar- QUAND states that an emetic given at the very commencement of the attack is sometimes of use, by evacuating retained bile ; but that it may be prejudicial, particularly if exiiibited in an ad- vanced period of the complaint. He recom- mends as the safest and most successful practice, 1st, to calm existing irritation by opiates; and 2d, to restore alvine evacuations. He prescribes a grain of opium every three hours till relief is obtained, which is usually the case after the third or fourth dose. He afterwards exhibits purgatives, and promotes their operation by glys- ters, which generally bring away copious black- ish and offensive stools. The Spanish physicians have commonly recourse to the oleum ricini as a purgative in this complaint, but M. Marquand prefers scammony and jalap, as being, in his judg- ment, more certain and quick in their operation. This treatment is the same as that long since recommended by I\Ir. Quier, in the dry belly- ache of the West Indies. 60. E, Treatment of lead cgUc (§ 25.). — In this variety of the complaint, as well as in those forms which have received the denomination of Madrid, West Indian, or hepatic colic, the hepatic ducts and gall-bladder are obviously ob- structed or loaded by morbid bile ; the irritation caused by v/hich most probably occasions spasm of the common duct, duodenum, and parts in the vicinity in the early stages of the disease. Very different, and even opposite, modes of treatment have been recommended in lead colic. — a. Blood-letting has been directed by Calmette, AsTRUc, CiiRisTisoN, and Gregory; whilst other writers, as Duboise and Dufresne, have considered it either unnecessary or injurious. I have prescribed it in some cases with manifest COLIC FROM LEAD — Treatment of, 373 advantage, the state ofvascular action evidently mdicating the propriety of resorting to it ; but, iu others that I have seen, it obviously would have been injurious. When the face is flushed, the skin hot, and the pulse full or accelerated, it is both safe and requisite. — /'. The use of opium has the support of the ablest writers on the dis- ease— of CJrashuis, Riedlin, Stoi.l, Schlegel, Reynolds, Baker, Adair, Eyeuel, Warren, Wolff, De Haen, and Gendron ; but they are not agreed as to the period of exhibiting it. Sir G. Baker commenced with purgatives, whilst De IIaen, Darivin, Warren, and Bateman began with opium, and gave purgatives after- wards. Dr. Pemberton advised a combination of both — of laudanum with castor oil. It ap- pears to me preferable to combine the first dose or two of opium with calomel, as recommended by Burger, particularly if the functions of the liver be obviously affected, as they often are, and if the stomach be irritable, as it generally is in the advanced state of the disease. But the dose of calomel should be large (from 10 to 20 grains), and not repeated oftener than once or twice. This combination will frequently of itself open the bowels ; but whether it does so or not, pur- gatives ought to be exhibited, and their operation promoted. 61. c. As to the propriety of having recourse to this class of medicines, there is no difference of opinion, however much sentiments may vary as to the choice which should be made of them. Grashuis, MosELY, f isciiER, Fuiese and Odieh jirefer the oleum ricini. Burger advises it to be given with manna; Eyerel, after blood-letting, with emollients and opium ; andTissoT in clysters. Several writers prefer the combination of anti- spasmodics and sedatives with purgatives, on the supposition, that the obstruction of the bowels attendant on the disease arises from spasm in some part of them. But, as Dr. Ciilyne and Dr. Abercrombie have justly contended, it is quite as much ov.'ing to distension, from a para- lytic state of the muscular coat,, that the obstruc- tion occurs, as to spasmodic constriction. Ac- cording to this view, little benefit can result, as respects the operation of cathartics, from com- bining them with antispasmodic anodynes, unless with such as may stimulate the intestinal canal ; and, in fact, such seems to be the result of ob- servation. Some writers, conceiving that lead colic may arise from the presence of the acetate or the oxide of lead in the prima via, have recom- mended the sulphate of magnesia with the view of forming an insoluble sulphate of lead. The experiments and views of Orfila, Good, and Dr. Paris, seem to favour the employment of this sulphate as well as the sulphate of alumina, exhibited with an excess of acid, or in the com- pound infusion of roses ; and certainly unequivo- cal benefit results from the practice. But whether that benefit arises from reducing the lead to an insoluble salt, or from the operation of the sul- phates in exciting the action of the partially paralysed muscular coat of the bowels, and thereby enabling them to expel retained matters of a morbid or noxious description, cannot readily be determined. We have no evidence of the existence of lead in the prima via to an extent that admits of detection, nor has the formation of a sulphate of lead been demonstrated. I am Bb3 S74 COLIC FROM LEAD — Treatment OF. therefore inclined to adopt the other mode of I efficacious. The sw/p/iate 0/ sine was recommended explaining the operation of these salts. I have • ^ ^' found the croton oil an excellent purgative in this disease, particularly when it is added to either castor oil or the oil of ttiypentine, or to both. I have in one or two cases caused the croton oil to be rubbed over the abdomen in this species of colic, with the hopes that it might act upon the bowels ; but I did not obtain this effect. The quick irritation of the skin, however, that it produced, evidently proved salutary. Sulphuy and its preparations, as well as sulphureous waters have been prescribed by Luzuriaga in the Madrid colic, in which they are obviously beneficial ; and subsequent writers, particularly Garnett and Hahnemann, proceeding on the erroneous opinion that the Madrid colic is iden- tical with lead colic, have recommended them also in the latter : but, as Orfi la has expressly stated, they are most dangerous remedies in true lead colic. A case demonstrative of this fact oc- curred in my practice many years ago, and was published in the London Medical Repository for October 1822. The deleterious effects are there ascribed to the absorption of sulphur, which was taken by the patient, contrary to my advice, in order to counteract the habitually costive state of his bowels. 62. d. The sulphate of aluynina has been given by some modern physicians, with the view already stated (§61.) ; but with many its exhi- bition has been altogether empirical. Grashuis, QuARrN, Adair, Fischer, Schlegel, Lindt, Percival, RIichaelis, Gebel, and Sommer favour the use of it, either alone or with muci- laginous and narcotic medicines. I believe that its efficacy is much enhanced by giving it with camphor, opium, and demulcents. Sciimidt- MANN details a case, in which the exhibition of two or three doses of alum produced a most copious operation on the bowels, after the most active purgatives had been given by the mouth, and per annm without any effect. When re- siding on the Continent in 1818 and 1819, I saw many cases treated by this substance, given in doses of from a scruple to two drachms in gum-water, or with camphor and opium. M. Kapei.er, in his hospital, into which many cases of the disease are admitted, employed scarcely any other medicine than alum dissolved in mu- cilaginous decoctions, assisting its action by oleaginous clysters. The worst cases, — those with paralysis, loss of sight and healing, violent cephalalgia, tremors of the muscles and limbs, &c. were restored in a much shorter time by this tiian by any other treatment, and with much less disposition to relapse, or to pass into a paralytic state. I have employed alum with uniform success -n several cases, and combined it with camphor, fJayenne pepper, and occasion- ally with opium ; and have always found tliat, when given in sufficient quantity, — from two to four or five drachms in the twenty-four iiours, and assisted by oleaginous clysters, — it will open the bowels more certainly than any other medi- cine. M. Genhrin has recently given alum in fifty-eight cases of this disease, all of which re- covered in from three to five days. He has also found that a drachm, or a drachm and a half, of sulphuric acid in the twenty-four hours, taken in by Dr. ]Mosely, seemingly from considering its operation analogous to that of alum ; and the sulphate of copper was mentioned by HAnnisoN. 63. e. Mercury has been very generally pre- scribed in this complaint, particularly by Clark, Hunter, Warren, Biss, Burger, Ci. utter- buck, and others ; but with very different views. Some have given it simply as a cliologogue pur- gative ; and others with the intention of pre- venting the accession of paralytic symptoms ; although it is by no means obvious how it can have this latter effect, since these symptoms sel- dom originate in structural change in any part of the cerebro-spinal axis, when they occur during or after lead colic. Those who have prescribed the preparations of mercury with this latter view, as Clark, Warren, and Biss, have pushed it to the production of salivation ; but, although 1 admit that salivation will speedily alleviate the abdominal symptoms, yet I am of opinion that it will rather favour than prevent the accession of paralysis, the more especially as I have observed this affection to follow, not- withstanding the salivation which had been pro- duced with the hopes of preventing it. 64. f. Besides the foregoing means, various others have been recommended by writers on the disease. Dr. Roberts has detailed two cases in which the nitrate of silver was internally ex- hibited with apparent benefit. Tobacco in variiius forms has also been prescribed. Bartholi- Nus was the first to employ this plant in the treatment of colic, by directing its smoke to be thrown up the rectum — one of the safest and most beneficial modes of using tobacco internally. Dr. Graves has derived much benefit from com- presses moistened with a strong decoction of it, applied over the abdomen ; and from croton oil internally, assisted by clysters. Emetics have been recommended by some writers ; but they are required only after lead has been taken in poisonous doses, or at the commencement of the attack, when the biliary organs are loaded by vitiated bile. They, however form a principal part of the treatment usually adopted in the Parisian hospitals. Cold and ivarm baths have both been mentioned by writers as being some- times of service ; but I consider the former at- tended by some risk, and the latter seldom required, although occasionally palliating the more painful symptoms. The propriety of having recourse to external irritation in this disease has been admitted by many of the writers already referred to, and blisters and various other means of a similar kind have been adopted. In several cases I iiave, however, found more advantage from one of the liniments above recommended ; or, if an irritating effect was desired in a short time, I have obtained it from either increasing the more irritating ingredients contained in these liniments, or applying a cloth moistened with one of them close to the abdomen. The hot turpentine fomentation, or a few drops of croton oil rubbed on the surface of the belly, will have a similar effect; but the former of these, accom- panied with suitable internal medicine, is the most rapidly efficacious. G5. g. The great number of cases of this dis- ease admitted into the hospitals " La Chnrite" three or four pints of water, is equally prompt and at Paris, and " Hotel Dieu " at Orleans, naturally attracts attention to the plans of cure wliich are there adopted ; but at neither of them is the treat- ment so simple or so quickly beneficial as that adopted by M. Kapeler, and already stated. At La Charite the treatment consists chiefly of emetics, purgatives, sudorifics, and opiates ; and at several of the French hospitals large local depletions are also employed. But the whole plan of cure is generally complex and distressing to the patient. ^I. IIanque, of the " Hotel-Dieii" at Orleans, states, that of about 150 cases he treated, he did not lose one. He commences with the semicupium ; and afterwards applies on tiie abdomen and loins a large plaster, consisting chiefly of diachylon, conium plaster, campiior, and the potassio-tartrate of antimony. This is allowed to remain until pustules come out, and the pained parts are rubbed with a liniment, the active ingredient in which is the extract of belladonna dissolved in sulphuric ether. He next administers, once or twice daily, an enema with four ounces of olive or almond oil, and twenty drops of the aetherial tincture of belladoima in tlie linseed decoction ; and prescribes, when tiie sufferings are severe, small doses of the same tinc- ture to be taken at the same time in a demulcent mixture. This treatment is persisted in for three or four days ; and if considerable relief has not been obtained at the end of this time, castor oil is given in small and repeated doses, the anodyne liniment is assiduously employed, and the plaster on the loins and abdomen is renewed, with an in- creased quantity of camphor and potassio-tartrate of antimony. Although this plan of cure appears to be very successful, yet relapses are very fre- quent after it. 66. h. The treatment adopted by the Author in lead colic is directed with the views, 1st, of re- lieving the sufferings of the patient; 2d, of eva- cuating the retained secretions, which are always remarkably morbid, and apparently the cause of the phenomena constituting liie fully developed disease ; and, 3d, of imparting energy to the weakened nerves, and parts that they supply. In fulfilling these intentions, the practitioner is often placed in a practical dilemma, from the cir- cumstance of the medicine, which is most to be depended upon in relieving some of the most urgent symptoms, and enabling the liver to throw off the load of morbid secretions which oppress it, having the effect, in some constitutions espe- cially, of increasing the exhaustion of nervous power, and the tremors and paralysis attendant on the worst forms of the complaint. Calomel, in a large dose, either alone or vvith opium, has an excellent effect in allaying the distressing irrita- bility of stomach, and carrying the biliary and other morbid secretions downwards : but if it be repeated in such quantity oftener than once, or if free evacuations be not procured soon after its administration, it is apt to aflfect the mouth, and to prolong the period of convalescence. I have therefore endeavoured to procure from it a soothing effect on the stomach, along with its chologogue operation, guarding against its se- condary action on the system ; and have pre- scribed from ten to twenty grains in a bolus, with about ten grains of rri/»;)/ior, and sometimes with two of opium. This will generally allay the retchings, and enable the stomach to retain the medicine next to be given. About three or four COLIC FROM LEAD — Treatment of. 37^^ hours after the above has been taken, a draut^ht, consisting of half an ounce each of castor o// and oil of turpeniiiie, with one or two drops of croton oil, on the surface of aqua piraentae, is admin- istered, and its operation on the bowels promoted by a clyster composed of about four ounces of olive oil, or two of castor oil, one of turpentine, half an ounce of sulphate of magnesia, and from ten to twenty ounces of the decoction of linseed, or of marshmallows. This enema should be steadily thrown up by the improved apparatus. Whilst this treatment is proceeding, a liniment may be assiduously rubbed on the abdomen, and on the limbs, if much pain be felt in them; or a piece of flannel, charged with one of these liniments (F. 297. 307., &c.), may be closely applied over the belly. If these means procure evacuations, recovery will soon follow; but if the draught be thrown oft" the stomach, or the injection be returned without effect, they should nevertheless be repeated. If the abdomen be much distended, and painful on pressure, the hot turpentine fo- mentation ought to be applied, as long as the patient can endure it, instead of the liniment. These measures will seldom fail of procurino- most copious evacuations, which should be promoted by sulphate of magnesia and spiritus eether. sulph. comp. in the compound infusion of roses; and by oleaginous clysters with camphor or assa- fcetida, and oil of linseed. After two or three doses of sulphate of magnesia have been given, the following draught may be exhibited, and re- peated frequently ; the action of the bowels beino- promoted by the enema. No. 137. R C'amphorae rasa; gr. iij — vj.; tere cum Mu- cilag. Acacias 3ss,et Aq. Pimentae 3j. ; Sulph. Alumina pulver. 3ss.; Spirit. Anisi 3 j. ; Syrupi Croci 3 ss. Misce. Fiat Haustus, quarta vel quinta quaque hora sumendus, prius agitata phiala. No. 138. R. Terebintli.Venet. vel Comraun. 3vj 3j.; Tinct. AssafcetidK 3 ss. (vel Ol. Anisi 5 j.); Olei 01iv» .5 iij. ; tere cum Vitel. Ovi, et adde Decocti Malvae 3 xvj., in quo prius soluta erat Sulphatis Magnesiae 5 ss. — 3 j., et fiat Enema. 67. i. The treatment of convalescence from lead colic is of much importance, particularly when at- tended with tremors, epilepsy, severe cephalalgia, or paralysis. At first the alum and camphor should be given for two or three days ; and the action of the bowels promoted by oleaginous ene- mata; the loins and abdomen being rubbed nio-jit and morning, with one ef the liniments already recommended. As there is a great tendency of the disease to return, particularly when the pa- tient follows the occupation which occasioned it, the strictest attention should always be paid to the state of the bowels, and the sulphates of magnesia and alumina, with cojnpound infusion of roses, and some aromatic spirit, be taken frequently ; and, upon the first indication of obstruction, re- course should be had to oleaginous clysters. 68. k. In order to remove the sequelte of the disease, particularly the paralysis, the patient should be allowed a generous diet, with exercise in the open air ; and strychnine, or the extract of nux vomica, with the aloes and myrrh pill, or F. 541. 565. may betaken twice or thrice daily. The palsy arising from the poison of lead is much benefited by this active medicine, as well as by frictions with stimulating substances, by electricity, and the use of splints along the fore-arm and hand as recommended by Dr. Pejibeuton. The Bath waters are very serviceable in promoting perfect Bb4 376 COLIC AND ILEUS — Treatment of. recovery, and preventing a relapse : with these i views, the balsams, particularly the Canadian and Peruvian, may also be taken, with the sulphates of alumina and quinine, or with tonic extracts, camphor, &c.; and, under every circumstance, the digestive organs should be strengthened and the action of the bowels promoted by tonics combined with aperients and antispasmodics. I have ob- tained marked advantage from strychnine thus combined, as well as from several of the gum resins, as ammoniacum, myrrh, assafoetida, and galbanum, particularly when, besides the reduced nervous and muscular power, the digestive func- tions still continue to suffer. (For the prophii- lactic treatment of this disease, see the article AnTs AND Employments^ § 17 — 30.) 69. ii. Treatment of Colic caused chiefly BY Change of Structure or Position'. — A. Of colic from constriction of the hoicels. This state of disease will not be benefited by purgatives or carminatives ; but a judicious choice and com- bination of aperients will often be of service. In all cases of this description, due examination jier anum should be instituted ; and as stricture frequently occurs at the upper part of the rectum and lower part of the sigmoid flexure of the colon, a very long flexible bougie should be care- fully introduced, as recommended by Dr. Willan. When we have reason to suspect the existence of stricture in any part of the colon, the use of mucilaginous, saponaceous, or oleaginous enemata should be long persisted in ; but the patient ought to be very careful not to employ any oil that is not perfectly sweet. At the same time, the action of the bowels may be promoted by an electuary composed of equal parts of the bi- tartrate of potash and bi-borate of soda, with confection of senna and common treacle, or either the inspissated juice of the sambucus, or simple syrup. I have seen advantage derived from a plaster, consisting of the emplastrum picis comp., the emplast. ammoniaci cum hydrargyro, and either the extract, belladonnae or the extr. conii, kept long applied over the abdomen. When the stricture appears to be low in the colon, and yet beyond the reach of a bougie, suppositories, with either of these extracts and the lead plaster, will be productive of some relief; and when it can be reached by a bougie, the occasional introduction of one will often permanently remedy the disease. 70. Most of the cases of this complaint that I have seen, have occurred in persons who had long been in the habit of having recourse to purgatives, consisting chiefly of calomel and colocynth, or the compound extract of the latter — substances which have a remarkable effect in irritating the internal surface of the colon and rectum, and constricting their muscular tunics. It is obvious that a frerjueiit repetition of these medicines, unless their effects be counteracted by emollient clysters, will at last give rise to inflammatory thickening of the panetes of the bowel, and con- striction of its canal. In most of these cases, also, there exists inflammatory action of the in- ternal surface of the constricted pait, and of its vicinity. Hence the advantage usually derived from a cooling regimen, a spare or farinaceous diet, and cQolirig gentle laxatives, assisted by soothing und demulcent clysters, as the following : — Ko. 139, IV Scmln. Foenicul. dulc, Scmin. Anisia a contus. 5 ss. ; Fol. Malvae et Flor. Anthem, aa 3 vj. ; AquEE Ojss. Coque ad Oj. ; dein cxprime et adde liq. expressoOlei Olivae, vet. Ol. Lini, 5iij.; Potassae Tartar. et Bi-boratis Sodje aa 3j. — 5ij. Misce et fiat Enema, pro re nata injiciendum. No. 1411. R Extr. llyoscyami 3ij.; Camphora rasae gr. vj. — X. ; Sodae Sesqui.carbon. vel Bi-boratis 3 jss. — 3 ijss. PotassK Nitratis 3 ss. ; tere cum Mucilag. Acaciae 3vj., et adde Decocti Papaveris 5 x. — xx. Misce et fiat Enema. No. 141. R Extr. Belladonnas gr. iij.— vj. ; tere curn Decocti Cydonise (vel Decocti Althaae, vel Dec. Hordei C(imp.) S xij. — xvj. ; et adde Potassae Carbon. 3j. ; Potassai Nitratis 3 j. Misce pro Enemate. 71. B. Treatment of Ileus. — The importance of ascertaining, previously to the adoption of a plan of treatment in this state of the disease, the existence of hernia, has been already noticed ; but the young practitioner should be aware that hernia may exist without the patient being aware of it ; and the real state of the case may be mis- taken, owing to the absence of any tumour, so very small a portion of the side of the bowel being strangulated as not even to obstruct its canal. I have twice or thrice — once in one of my servants — met with such cases, in consult- ation with eminent surgeons, where the exact state of parts was inferred, and a successful treatment pursued. There are certain forms of the disease which may be briefly characteiised, as they require a very different treatment: — 1st, Great distension of the abdomen, with dif- fuse, but not acute, tenderness ; obstinate costive- ness ; retchings, particularly when substances are taken into the stomach ; anxiety, and general uneasiness : 2d, The above symptoms, with fixed and severe pain, and great tenderness, felt in a defined part of the abdomen, often about the re- gion of the Cfficum : 3d, Violent attacks of tor- mina, occurring in paroxysms, like the strong im- pulse downwards from the action of a drastic purge," — the action proceeding to a certain point — there stopping, and becoming inverted, — fol- lowed by vomiting, which soon becomes feculent (Abercuoimeie) : and, 4th, Where the symptoms of the third state are accompanied with tenesmus, and the discharge of a small quantity of bloody water or mucus, sometiines with indistinct or elon- gated tumour, and the other signs already described (§ 40.) as indicating invagination of the bowels. 72. In the frst of these the bowels are evi- dently distended and inactive; — in the second, they are probably in a similar state, owing to ob- struction, stricture, or strangulation, with inflam- mation, most frequently in the vicinity of the crecum and its appendix; — in the third, there are more evident signs of stricture or strangula- tion ; but this may also be an advanced stage of the second ; — and in ihefowth, the symptoms are more strictly referrible to invagination ; although this may also exist in the third of these states. 73. a. It is evident that the frst of these states will very frequently be much benefited by purf!;(itires, particulaily by a large dose of calo- mel (from 10 to 20 grains), which will, either alone orwith camphor and liyoscyamus, allay the morbid action of the stomach, and move the bowels, particularly if it be assisted by the hot turpentine fomentation or epithem (§ 54.), and by enemata (^ 57. 66.70.). In ca.ses where a full dose of calomel only has been given, a dose of castor oil, with ten or fifteen drops of laudanum, may fol- low it in one or two hours ; and an injection with three times the quantity of the same medicines may afterwards be thrown up. In some instances COLIC AND ILEUS — Treatment or. 377 equal quantities of castor oil and turpentine may i be given soon after the calomel. After the irrita- bility of the stomach has subsided, the action of the bowels may be promoted by small doses, I frequently repeated, of the purified extract oj aloes, with hyoscyamus, and a small quantity of extract of gentian, which will promote its action. Gai.lesky states that he has found recently ex- pressed linseed oil, in the dose of a large spoon- ful, with a few drops of the oil of aniseed, given every hour or two hours, extremely beneficial. If the first dose of calomel neither opens the bowels nor allays tiie action of the stomach, it may be combined with from one and a half to three grains of pure opium, 'i'his will, in most instances, settle the stomach and open the bowels, particularly if it be soon followed by the fomenta- tion and enema already advised. 74. b. The tendency of colic to lapse into a latent or obscure state of inflammation has already been noticed (§ 54.) ; and this tendency is the greater, the more nearly the disease approaches to ileus from its commencement. As colic in every form is more especially an aflPection of the muscular coats of the bowel, and as inflamma- tion, when it supervenes, as it so frequently does, upon colic, seems to attack this part especially, and to terminate then more rapidly in gangrene than when it originates in either the mucous or peritoneal coats, so it becomes necessary to iiave a prompt recourse to blood-letting, particularly when rigors have occurred, and the pulse is op- pressed or constricted, and the habit of body plethoric or muscular. In such cases, blood- letting should be full and decided, and, if neces- sary repeated ; but it ought not to be trusted to alone, or even mainly ; for if carried too far, or employed too largely, or even at all in some cases and states of constitution, or too late in the disease, it may hasten a fatal termination. It is beneficial chiefly in the second and third states of the malady, especially when resorted to early, and followed by local depletion, by calomel and opium, the warm turpentine fomentation on the abdomen, and sub- sequently by clysters (F. 144. 146, 147.). I be- lieve, however, that in many cases, particularly those commencing as flatulent colic, blood-letting carried to the utmost extent will not of itself pre- vent either gangrene from taking place, or faecu- lent vomiting from coming on. For in these, and in the frst state above specified, the muscular and other coats seem to lose their vitality, without almost any other mark of pre-existing inflamma- tion, that I could observe in some cases on dis- section, than change of colour. And yet, when duly employed, particularly early in the other states of the disease, blood-letting will often give decided and immediate relief, and be quickly fol- lowed by free evacuations and speedy recovery. 75. c. Opiates and other anodynes are most important remedies in nearly all the states of the disease, but especially in the second and third particularised. The propriety of premising ge- neral or local blood-letting, or both, when it is clearly indicated, and the advantages of com- bining opium or hyoscyamus, at first with a large dose of calomel, or camphor, or both, have been adverted to. These remedies will often of them- selves produce free evacuations ; but in the states of ileus now mentioned, purgatives given by the mouth, unless of the mildest kind, or combined as above (§52.), and exhibited subsequently to the above remedies, are seldom of service. Appropriate enemata, however, should not be omitted. 76. d. The tobacco injection is one of the most generally adopted remedies in this disease, and one which has received the warm sanction of Dr. Abercrombie. This able physician recommends it with judicious caution, and directs at first only fifteen grains of the tobacco to be infused for ten minutes in six ounces of boiling water; the (quan- tity to be increased to twenty grains, and repeated alter an hour, if no eflPect be produced. 1 believe that, when thus employed, early in the disease, and in persons previously of sound vital power, this will often be of service, or at least not detri- mental. But I have seen several cases wherein this powerful substance, even when no more than half a drachm had been infused for fifteen minutes in a pint of water, produced the most distressing effects ; and in one case, where it was given in opposition to my opinion, which was in favour of a terebinthinate injection, death followed its ad- ministration before three minutes had expired, — evidently from its sedative operation in an ad- vanced state of disease. I have seen many cases in which it had been administered, and, unless under the circumstances in which I have stated it to be admissible, or when stimuli are given at the same time by the mouth, I believe that it favours a fatal termination, by exhausting the vital power of the alimentary canal, and dispos- ing inflammatory action to terminate in gangrene. The introduction of tobacco smoke into the large bowels appears a much safer and more efficacious practice, and to be appropriate to a greater number of the many morbid states of which ileus is an effect. 77. e. Various other kinds of injection have been recommended ; and some of them are more deserving of confidence in the treatment of ileus than almost any other remedy. I have already mentioned several (§66. 70.), and referred toothers in the Appendix (F. 140, 141. 150.), on which very considerable reliance may be placed. Dr. RI ax- well has found large injections of u'nrm linseed oil — from two to four pints — steadily and slowly thrown up, regurgitation- being prevented by pressing the guard of the pipe against the anus, remarkably successful, after fajculent vomiting had come on, and the usual means had failed. He recommends, in such cases, the patient to be placed on the right side, with the pelvis elevated above the rest of the body, the premature return of the injection being prevented by firmly press- ing a ball of linen against the anus. He directs this clyster to be repeated every three or four hours, until relief is obtained ; and, when much ex- haustion is present, with the addition of laudanum. This physician and Dr. Wood likewise advise, in cases where the existence of intus-susception is suspected, the injlation of the ivtestines by air, and adduces cases in which it was followed by copious evacuations ; but it seems doubtful whether or not invagination existed in any of them. This practice, first recommended by Hippocrates, afterwards insisted on by Alexander of Tralles, Zacutus LusiTANus, and Riverius, and mentioned by Sagar, and some other systematic writers, is cer- tainly deserving of trial where we have reason to suspect invagination or internal strangulation. In most cases, however, inflation with tobacco smoke appears preferable] but, as Quahin re- 378 marks, it should be frequently repeated, and its effects carefully watched. Although the infu- sion of tobacco has been chosen for injection by ViOAT, FoWLEn, CaMPET, CoNRADf, HuFELAND, and Adercrombie, yet I agree with SynENHAM, De Haen, Sagar, Quarin, and many others, in considering the smoke superior to the infusion ; the former being adopted by some merely on ac- count of the greater facility of conveying it into the bowels, and without reference to the very different operation of these two modes of employ- ing this powerful medicine. But in cases where inflation by air or tobacco smoke is adopted, purg- ative injections should speedily follow, as di- rected by Hippocrates, if evacuations have not taken place ; for the smoke may even pass out by the mouth, and yet copious motions may not otherwise be procured. Besides these means, yeast has been administered as an injection in warm small beer, with the intention of evolving its fixed air in the bowels, and thereby extricat- ing any unnatural convolution or slight invagin- ation that may have been formed. Sulphuric tether has likewise been thrown into the large bowels, with the expectation that its fumes would operate in a similar manner. Anlinwiiuil icine, and the powder or infusion of ipecacuanha have been prescribed in enemata, with the view of re- laxing spasm, in cases where it is presumed to be the chief cause of obstruction ; whilst the infusion of poppies and of chamomile flowers, various ano- dyne, saponaceous, laxative, and oleaginous in- jections (§ 57. 66.), have also been directed with the views already stated. 78./. Baths, (Sfc. — Tepid or ivarm baths are sometimes useful adjuvants in the early stages of the disease, and are generally recommended. Cold fluids taken into the stomach, and thrown into the large bowels, in considerable quantities, and cold epithems constantly applied on the abdo- men, have been prescribed by Bureau*, Maret, Range, Steidele, Darwin, Conradi, Bai.d- iNGER, Smith, and Abercrombie. The dashing of cold water over the lower extremities and ab- domen of the patient, whilst he is kept in a stand- ing posture, has likewise been directed by several physicians ; but this practice, although occasion- allv of service, seems less successful than the judicious application of cold to the surface of the abdomen itself. When this cavity is distended, tense, painful on pressure, particularly in a cir- cumscribed portion, with increased temperature of its surface, the cold douche, or the applica- tion of cloths moistened with vinegar and water, will often prove of advantage. Dr. linANOis, of Copenhagen, states that he has employed iced drinks, and cloths wetted with iced water to the abdomen, in ten cases with success ; and that in some instances the practice requires to be perse- vered in for a long time, and assisted by anti- spasmodic and laxative enemata, and by opiates with stimulants and tonics taken internally. 79. f;. Wiien signs of d(ipiession of the vital energy manifest tiiemselves in the advanced stage of the disease, stimulants are required, and, if judi- ciously selected and combined, their exhibition • Mr. nuREAU rprommemls the use, and gives a plate (IcBcriiitivH, of asimpic liyclraulir apparatus for injections, tilt i-aiiii' ill all rispccts ;'^^ inir lately intro(lii(:(^d into tliis country from Tranci-, imilfr tlio nanio of clysmaduct, but ■which Is Buit«d only to the injection of water. COLIC AND ILEUS — Treatment OF. will sometimes be rapidly followed by amendment. Wherever the lowering measures already noticed are followed by increase of the symptoms, particu- larly vomiting and restlessness, or by sinking of the nervous power or of animal heat on the surface of the trunk, antispasmodic stimulants and tonics should be conjoined, according to circumstances, with certain of the measures described above. Purgative tinctures are sometimes of service in this state, particularly the tinctures of aloes, with liquor potassaj, and tinct. hyoscyami ; and the compound tincture of senna, with tinct. ammon. comp. and spirit, anisi, in large or often repeated doses. Notwithstanding constant or even feculent vomiting in this stage, advantage will sometimes be derived from a full dose of unrectijied oil of turpentine (from 3 ^y . — x.), taken on the surface of aqua pimentae, to which either spirit, anisi, tinct. cardamom. CO., or tinct. capsici, has been added. I have seen the vomiting cease, and the distension of the abdomen rapidly subside, im- mediately after this draught, whicli should be repeated if the former has been thrown off. A full dose of common oil of turpentine, taken by the mouth, has a singular effect in constricting, and, as it were, drawing the small intestines close to the root of the mesentery ; so tiiat, in cases where I have given it, and in which hernia had chanced to exist, tiie hernial sac has become quite empty soon after its exhibition. May not the advantage obtained by it occasionally arise from the disentanglement of a constricted or im- prisoned portion of intestine by this mode of operation, as well as from its influence in restor- ing the action of the paralysed and dilated coats of the bowel in other cases? In manystat.es of inflammatory action, particularly those attended with exhausted tone of the capillaries and de- pressed vital power, it is one of the most active means we possess of preventing gangrene or eflfusion, and of restoring the natural action of the vessels. 80. h. In some cases, after depletions have been carried far, or in nervous and irritable habits, the inverted action of the stomach and upper part of tiie alimentary canal appears to continue in consequence of the vital exliaustion and irritability of parts ; but if these states were put a stop to for a while, and the powers of life supported, the natural action of the bowels — re- specting the immediate restoration of which the patient is often injuriously harassed — would ge- nerally at last return. Under such circumstances, pills consisting of the trisnitrate of bismuth, camphor, and opium, frequently repeated ; or of the fust of these, and extract of hop, or of henbane, or the hiidrocyanic acid, in tiie recent oleum amygdal. dulcis, or oleum oliva;, in moderate but rather frequent doses, and occasionally with an aro- matic spirit or distilled water ; will often prove of service, particularly when aided by the external means about to be recommended. When thus exhibited, the hydrocyanic acid has a restorative effect ; and it is still further beneficial when associated with suitable stimulants, as camphor, a;ther, &c. In a few instances I have inferred from tiie situation of the pain, and other symp- toms, that the disorder originated in the duodenum or jcjuiiuni ; and in these especially, tlie trisnitrate of bismuth and the hydrocyanic acid have been of considerable benefit. The compound tincture of COLIC AND ILEUS. — Treatment of, from Intus-susception. 379 guaiacum, with paregoric elixir, in full doses, : of chamomile flowers and the potassio-tartate of and given in milk, or in the recent oil of almonds or of olives, or in linseed oil, has also occasionally proved of advantage. The acetate of morphia is sometimes of service in allaying the distress, anxiety, and irritability of the stomach and dia- phragm ; but it should be prescribed in an aromatic spirit, and in a dose which will secure its anodyne effect without sinking the vital energies. I have used the following with marked advantage, repeat- ing the dose every two hours until an eftect was produced : — No. 142. R Acetatis Morphiae gr. iv. ; Spirit. Myris- ticee et .Spiric Pimenta; aa 3j. ; Spirit. Camphoraj et Tinct. Benzoini Comp. aa 3 ss. Solve. Capiat 3 j. ad 3 ij. in Saccharo vel Syrupo vel Oleis supra inemoratis. 81. i. The ingestion of crude mercury, or of globules of lead, to the extent of one or two pounds, has been recommended in ileus by seve- ral authors, particularly in that state of the malady which presents the symptoms indicating invagi- nation of a portion of intestine. Sydenham, SCHENCK, BeLLOSTE, PaRE, PaNZANI, HoFF- MANN, SaGAR, QuARIN, NeVINSON, DaHWIN, Abercro.mbie, and many others, have noticed this practice ; some of them, as Sydenham and Ql'arin, in doubtful terms — others more favour- ably. M. Roll AND has detailed the history of a case, wherein, other means having failed, he gave about 10 ounces of crude mercury, wiiich, after a short time, occasioned a sensation of cliange in the position of some part witliin the abdomen, instantly follovi'ed by relief. Similar instances have been recorded by Dr. Uwins and Dr. Belluci. I have never tried this metal ; but, many years ago, I saw a patient — a female between twenty and thirty, — relieved from all the characteristic symptoms of this state of the disease by the ingestion of about two pounds of common shot, which has also been recommended in volvulus, by many of the best medical writers of the three last centuries, and by some of them in preference to quicksilver. Large blood-lettings, the tepid bath, and various other means (§ 54. 77.), should generally precede the ingestion of lead or quicksilver. 82. k. Various external means besides those already noticed, have been recommended in ileus. Sagar* state', that he was cured of volvulus, by having the abdomen, at the commencement of the attack, kneaded like dough, with oiled hands, — a plan instituted evidently with the view of disen- tangling a displaced portion of bowel. Aret/Eus, and Paul of j-Egina, directed cupping on the ab- domen. Cei.sus advises dry cupping on both the loins and abdomen; but little advantage can be expected from this latter measure, unless it be performed by one capacious vessel, as is, I be- lieve, occasionally done in some northern con- tinental countries, Quarin states, that in an extreme case, all other means having failed, and the pulse being small and irregular, the extre- mities cold, the countenance sunk, with hiccup, &c., he had recourse to dry cupping using for the purpose porcelain bowls. Relief soon followed, and the bowels were copiously evacuated, their action having been assisted by enemata of infusion soda. 83. /. Dr. Abercrombie expresses himself in favour of large blisters on the abdomen ; but much more certain and immediate relief — often within ten minutes after its application — is derived from the hot spirit of turpentine fomentation placed over the whole abdomen. Where there is little or no tenderness of this cavity, I have, however, preferred inunction of its surface with one of the liniments above directed (§ 51.), keeping subsequently a cold turpentine epitliem applied. Forbes, Wilmer, and Baldinger also advocate the use of blisters on the abdomen ; but Meier prefers placing them on the insides of the thighs. The recommendation of Sydenham, to keep a young dog constantly applied to the abdomen, will appear to many a singular remedy ; but the views witli which he prescribes it are by no means devoid of reason. 84. m. Numerous writers antecedent to the time of Quarin, and subsequently, have recom- mended an incision to be made through the parietes of the abdomen, and the internally stran- gulated, or the invaginated, portion of bowel extricated through it. Nuck has recorded a case where this operation was performed with success. Van Swieten objects to it, tiie uncer- tainty of the existence of volvulus or internal strangulation. But in several cases of invao-i- nation which I have seen, and in a great many I have perused — almost all those, the history of which has been fully detailed — the symptoms described (§ 40.) as characterising this state were present, particularly the tormina, followed by desire of evacuation, and tenesmus, with the dis- charge of a little bloody mucus or water ; the oblong tumour, in a part of the abdomen, ad- mitting of being recognised at some period of the disease; have been superadded to the otlier symo- toms of ileus, and pointed out its precise nature. In two cases I felt inclined to have had the operation performed ; and, indeed, suggested it. The diagnosis was found correct on examination after death. A case is given by Dr. Fuscmus, in Hufeland's Journal for February, 1825, almost identical with one of these, and characterised by the above diagnostic symptoms, in which he resorted to this operation over the place to which the patient referred the sensation of obstruction, and where an obscure oblong tumour, in the situ- ation of the ascending colon, was detected. An invagination of the colon v/as removed, and the patient perfectly recovered. The reader need not be informed tiiat ileus very commonly proceeds from strangulated hernia, and sometimes persists from adhesions, &c., after the displaced bowel has been returned. The propriety of having an early recourse to the operation after we fail in returning the protruded intestine is here very obvious. 85. n. During, and subsequent to, convalescence from ileus, the patient should wear flannel next tlie skin, and promote the functions of the sto- mach and bowels by vegetable bitters combined with gentle aperients, and the catbonates of the alkalies. The bulky and flatulent vegetables ,, „,. „ ,. . L ,_ , , , , ■ ought to be avoided, and the extremities and sur- ' Ulira C)•^s^^ mcidi in huncmorbum (volvulum) ego : \ c c .^ i i ii ■ i n Hungarus Sartor accitus me restituit intra trcs horas | "ace of the abdomen and loms kept equally warm. methodo sequent! : impositum me supinum prato. in- unctisve oleo olivaruni manibus suis depsabat prout pis- tores pastara panis subtiliter incipiens successive semper fortius totum abdomen meum." (p, 320.) The utmost attention should be paid to diet ; all indigestible substances, and acid or acerb beve- rages being carefully avoided. COLIC — Treatment of its Sympathetic States. 380 86. ill. Treatment of Symptomatic or Complicated Colic. — A. The means of cure in most cases of this description should be di- rected to the diseased viscus, by which the func- tions of the alimentary canal are . affected. — a. Those colicky symptoms which are produced by irritation, or the passage of gall-stones, through the common bile-duct, and by the obstruction occasioned by concretions in the intestines, wdl generally be relieved by Tiearly the same treat- ment as that recommended in this article ; but whatever difference should exist, is detailed in the article on Concretions. — b. The colic which is symptomatic of woi'ms in the intestines requires, if the attack be severe, the internal and external means already recommended to allay the urgent symptoms; but after this is accomplished, the remedies resorted to for the cure of verminous disorders should be employed. (See art. Worms.) 87. B. The occurrence of colic from uffections of the kidneiis, particularly from calculi in their pelvis or ureters, should not be overlooked by the practitioner ; nor should he forget that it is some- times consequent upon aneurism of the abdominal aorta, and of tumours formed in the mesentery, or in the omentum. — a. In the first of these pathological states, much relief will be afforded by the alkaline carbonates, with opiates, or sedatives, and followed by oleaginous purgatives and enemata, in addition to whatever depletory or other measures the circumstances of the case will point out. The use of liniments with camphor, soap, and opium, rubbed on the abdomen and loins, will also give much relief. — b. In colic depending upon the latter organic changes, little beyond palliating the urgent symptoms by the remedies now mentioned, can be expected. 88. C. Flatulent colic, generally of a pro- longed description, and often not easily removed, at least in a permanent manner, sometimes occurs in the course of asthma a.nd bronchorrha:a, owing appirently to the interrupted functions of the mucous surface of the lungs ; the evolution of gaseous fluids, from the blood being impeded on this surface, but supervening vicariously on that of the alimentary canal. In such cases, after the bowels have been freely evacuated, carminatives combined with ipecacuanha and hyoscyamus; the infut-ion of valerian, with hydrocyanic acid, and spirit, anisi ; powders of magnesia, trisnitrate of bismuth or oxide of zinc, and ipecacuanha; sul- phate of zinc, with myrrh, camphor, and opium or liyoscyamus; and camphor mixture, with extract of belliidonna, spiritus aitheris sulphur, coinp. and spirit. mentluB ; are among the means which will afford the greatest relief. 89. 1). There are few more common compli- cations than hi/steria and colic ; but the treatment varies not materially from that now stated. — a. In such cases, the functions of the uterus rciiuircs strict attention ; for morbid sensibility, and even vascular excitement, both of this viscus and of the ovaria, are often present. The treatment too commonly ado[)ted in this state of complication, although it rnay give immediate but temporary relief, not unfre(|uently perpetuates the patholo- gical stale, of which both liysteria and colic are merely symptoms. Instead of employing medi- cines which excite both the digestive mucous surface and the generative organs, in these cases, coolinij and soothing remedies are much more ap propriate to them, such as those above enumerated (§ 87.) ; local depletions, nitrate of potash, car- bonate of soda, extract of hop, cooling aperients, vegetable tonics, exercise in the open air, &c. — b. When the complaint is symptomatic of diffi- cult menstruation (§ 43.), general or local blood- letting may be resorted to in the plethoric sub- ject : but in the weak or hysteiical, camphor, ammonia, soda, &c. with hyoscyamus ; or the acetate of morphia or laudanum given in some aromatic spirit, the compound tincture of guaia- cum in linseed tea, the preparations of rue and of juniper, and the treatment detailed in the article on the Disorders of INIenstruation, will generally give speedy relief. — c. Colicky pains sometimes occur during pregnancii ; in such cases, cooling aperients, with antispasmodics and opiates or other anodynes, and preceded by sanguineous depletion, if congestion or plethora exist, will remove all disorder. — d. Severe at- tacks of colic are not uncommon upon suppres- sion of the menses or of the lochia. If a tendency to inflammatory action manifests itself, and espe- cially if the patient be plethoric or robust, general or local depletion should be practised ; a dose of a mixture composed of a decoction of the radix rubiae, tincture and syrup of saffron, and as much biborate of soda as it will dissolve, should be given every two hours ; the volatile liniment with camphor and opium ought to be rubbed on the abdomen ; and afterwards, a fomentation with the decoction of poppy-heads, &c. applied to the same situation. Schmidt- MANN advises a cataplasm, consisting of marsh- mallows, henbane, bruised linseed, and pojipy- heads, to be placed warm on the abdomen ; and the steam of hot water to be conveyed to the pudenda. — e. If colic proceed from congestion or infammatory irritation of the uterus or ovaria, local depletions; diaphoretics, and refrigerants, combined with sedatives ; aperients, with cooling emollient enemata, and low diet, are the most appropriate remedies. 90. £. Colicky complaints are not infre- quently referrible to congestion and irregular Vascular actio)i in the liver, pancreas, or spleen ; or, if not arising from such disorders, are asso- ciated with them, owing to deficient energy of the organic nervous system ; and, consequently, to imperfect performance of the abdominal func- tions generally. — a. In cases of this kind, local depletions, followed by purgatives, exerting a chologogue and deobstruent action, external irritation, and subsequently, by vegetable tonics, laxatives, regular exercise, and a course of the Leamington, Harrogate, Buxton, or Chelten- ham, mineral waters, or the artificial waters of Carlsbad, Sjia, Ems, &c., according to the circumstances of the case, will generally re- move all disorder. Impeded circulation through the portal system is more or less concerned in the causation of colic pains in these cases ; the return of blood through the mesenteric and haunorrhoidal veins deranging the contractile actions of the intestines, and giving rise, in many cases, })articularly those in which this patholo- gical state obtains, to the additional association of haemorrhoidal affections, which, if neglected, may terminate in anal fistula;. — b. It is not un- common to find a severe attack of colic usher in hccmorrhoidal discharges : the impeded circu- COLIC — Treatment of lation through the portal vessels, and the conse- quent fits of colic, being both relievener, in Hvfc'land's Journ. der Pract. Arzneyk. vii. b. p. 83.— r Micluwlis, in Ibid. xii. 4 st. p. 31. — Gebel, in Hufeland's Journ. der Heilk. i.b. p. 195., et xvii. b. 3st. p. lOS. — JBateman, Art. Colic, in Rea's CycXoy^Aia.—Bobcrls, in Transac. of Lend. Coll. of Phys. vol. v. p. 45. — Pct«- bcrlon. On the Abdom. Viscera, Sec. 'p. \bd. — Andral, Clinique Medicale, t. iv. Paris, \»27. — Farisei, in Diet, des Sciences Med. t. vi. p. 'd.—OrJila, Toxicologie Gene- rate, i. p. (,37. — Friese, in Archiv. der Pract. Heilk. iur Schlesien, iv. b. 1st. n. 6. — Amlral, in Revue Med. t. li. 1824, p. 203. — A'flj3f/f;-, Archives Gener. de Medecine, t. xviii. p.310.— Graves, Dublin Hospital Reports, vol. iv. p. io.— Gregory, Practice of Phys. 3d edit. p. 5ii.—C/tris- tison. On Poisons, p. i^Z— J. Copland, in Lond. Med. and Surg. Journ. vol. i. p. 147. ; and in Lond. Med. Repository, vol. xviii. p. 322. — Fournier, in Journ. Hebdomad, de Med. t. vii. Paris, \^'iO. — Gendrm, Transact. Medicales, Jan. \%i-i.— Uwins, Med. and Phys. Journ., v. xxx. p. 441. ii. Ileus AND VoLVuHJs. — Hippocrates, IJi^i vouirm, iu.. Opera, p. 491 . ; Tlip rccdav. Op. p. o2. — ScribovUus Largus, De Compos. Med. ch. 2S.—Aret(Fus,Curat.Acut.\.i\.c.b. — Paidus JEgineta,\.in.c.ii.—Bartholimis, Epist.iii.p.284. ; Historia. Anatom. cent. v. hist. 23. ; et De Usu Nivis Me- dico, p. 145 Sydenham, Opera, p. 267. — Zacuius I.usi- tanus, Pract. Admirab. 1. ii. obser. 29. — Bone/, Sepul- chretum, 1. iii. sect. 14.obs. 7. 24.,etl.iv. sect, i.ob.23 — Morgasni, Epist. xxxiv. No. 11, 12. 18 J'icat, Delect. Observat. Pract. App. p. 31 — Hoffmann, De Passione lliaca, Opera, Supp. ii. n. 2. — Sagar, Systema Mor- borum, ..*i:c. p. 321. Vien. 1757. — Quarin, De Cur. Feb. et Inflam. p. 384. Vien. 1781. — Monro, primus, Observ. en Intus-susceptio, in Edin. Med. and Phys. Essays, vol. ii. art. 27. ; Ibid. vol. iii. p. 387. — Simson, in Ibid. vol. V. par. ii. p. 664. — De Haen, Rat. Med. par. i. p. 113., par. viii.c.5.,par. ix.c. 5.,andpar. xi.c. 3 — Monro, tertius. Morbid Anat. of the Gullet, Stomach, and Intes- tines, 8vo. 2d. edit. p. 59 — Whately, in Philos. Transac. vol. Ixxvi. — Foirler, Med. Reports of Tobacco, Lond. l7Hy). —Bartliez, Observat. sur les Coliques Uiaques essen- tiellement Nerveuses, in Mem. dela Societe Mtd. d'Emu- lation, t. iii. p. 401. — Daririn, Zoonomia, vol. ii. p. -533 — Liulivig, De Cau.sis Obstruct. Alvinae, p. 32. — Howship, in Med. and Surg. Journ. vol. viii. p. 1^9. — Hvfeland, in Journ. der Pract. Arzneyk. ii. b. p. 309. ; et in journ. der Pract. Heilk. Nov. 1809, p. m.—Scha-ffer, in Ibid. Dec. 1810. p. 30 Conradi, in Hufcland's Journ. der Pract. Arz- xieyk. vi. b. p. 495. — Forbes, \a Edin. Med. Comment. vol. ix. p. 266. — Scott, in Ibid. vol. v. p. 183. — Nevi".son, On Crude Mercury in Obstructions of the Bowels, Lond. 1788 Baillie, Series of Engravings, fasc. iv. tab. i — Sims, Observations on Epidemic Disorders, &c. p. 27 — Gadolla, De Voniita Intestiuor. sive Volvulo. Vien. 1771. — Hartinann,De Ileo Cognoscendo et Curand. 17K0 — Galleshy, V'om Miserere, etc. p. 70. — Salgues, in Journ. de Medecine, t. xxxvi. p. 515 — Wolff, in Hufeland's Journ. der Pract. Ileilk. xvii. b. p. 189. — Btireau, in Mem. of Med.Soc. of Lond. vol.ii. p. 227. — Baldinger, N. Magaziii, viii. b. p. 77. — I'ogel, Methode den Ileus, &c. Coder's journ. fiir Ghirurg. i. b. p. 541 — -Monfatcon, in Diet, des Sciences Med. t. xxiii. p. 541. — Raigc Drlorme. in Diet, de Medecine, vol. xxi. p. 402 Richter, Die Specielle The- rapie, iv. b. p. 171 — 226 Rayer, Archives G^ner. de Med. t. v. p. 68. — Lebidois, Ibid. t. xiii. p. 230 Louis, Ibid. t. xiv. p. 185. — Regnaidt, Journ. Univers. des Scien. Med. t. iv. — Morlier, Journ. Complement des Scienc. Med. t. iii. — Paget, Journ..Gtner.de Med. t. xi — Dance, Sur les Invaginations des Intestine, in Repert. Gtner. d'.'Vnatom. ct Patholog &c. t. i. p. 441 — S7nilli, in Edin. Med and Surg. Journ. vol. ix. p. 287. — Maxwell, in Ibid, vol. xxi. p. 72. — Rolland, Archives Gener. de Medecine, t. v. p. 220. — Fusdiius, in Ibid. t. ix. p. 116. — M. Bnet, in Ibid. p. 230. — Belliici, In Ibid. t. xviii. p. 296 — Bli- xard, in Trans, of Med.-Chirurg. Soc. vol.i. No. 14 — Bavd, in Journ. Gen. de Mi5d. t.xxiv. p. 20. — Brandis, in Nouv. Journ.de Med.t.v.p.89. — JVillan, Miscellaneous Works, hy Smilh, Lond. 1820, p. 285 — Abercroinbie, On Diseases of the .Abdominal Viscera, &c. Edin. 1828, p. 104. — Bcilby, Alison, SjC, in Ed. Med. and Surg. Journ. vol.xliv. p. 280. el seq Wood, in Bost. Med. and Surg. Journ. 1835, Those who wish to be acquainted more fully with the opinions of the writers of the fifteenth, sixteenth, and seventeenth centuries, as to liens and Colic, will find them detailed atconsiderable length in Hone r's Volyallhes, &c. fol.vol. i. p. 500. et stq. ; in his Merciiriiis, fol. p. 115.; and in M ANCv.i's Bibliotheca Medico I'raclica, fol. vol.i. p. 575. Although I have not availed myself of these collections in any way, owing to my circumscribed limits, and desire to give more precise information of a later date, and more in accordance with my experience, than that which they furnish, yet will they he found to contain much of wha"t has been considiTcd of much more modern date, and, "when ulftcd from the refuse, of no mean value. Torpid States of, &c. The Bibliography of these diseases in Ploccquet's 3/fd. Digesta, is brought down to the commencement of this century ; but many of the references are inaccurate : that by Young is very scanty, and not select. The list appended to the art. Ile^is, in the great French Dictionary, is entirely a catalogue of Theses on the subject, of no value; instead of consisting, as it ought, of references to the experience of the best practical writers. COLON.— SvN. Ka;Xo]/, Der Grimmdarm, Ger. The Large Bowel. 1. The colon is very often the seat of disease, the rest of the alimentary canal being but lightly affected. In some complaints, as constipation, colic, and dysentery, it is the part principally disordered: and in others, as indigestion, diar- rhcea, ileus, perito)iitis, &c., it participates in the disease with the rest of the digestive organs. The investigation, therefore, of these maladies neces- sarily includes the consideration of the chief mor- bid states of this viscus. But there are other derangements which require a brief notice at this place, and which do not belong to these diseases, or to those changes of structure that are common to it and the rest of the alimentary canal, and are considered in the article on the Pathology of the Digestive Canal. L 'J'onpoR OR Atony of the Colon, and its Consequences. — Classif. — L Class, I, Order (Author). 2. Deiin. General debility, with indigestion ; slow or irregular state oj' the bowels; distension, borborvgmi, or stridulous noises, in the course of the colon ; frequently pain or nneasiness, sometimes with tumours in some part of this viscus. 3. i. Its Pathology. — Atony and distension of the colon may be variously associated with other disorders. They obtain more or less in all cases of constipation and colic which depend not upon inflammation, or upon diminution or con- striction of the canal of the intestines ; and they are also often complicated with torpor of the liver, and deficient secretion from the internal surface of the colon. Distension is usually occasioned by flatus or fsecal matters: and it may produce little or no inconvenience, beyond constipation, until it reaches a great extent ; but it frequently gives rise to flatulent and stercoruceons colic, and even to ileus. The gases found in the colon are azote, carbonic acid gas, and carburetted hydro- gen, in varying proportions ; and when tliey ac- cumulate largely, they always produce borborygmi or an unpleasant or painful sense of distension, and constipation or colic. A. Flatulent disten- sion of the colon (see Flatulence) is commonly dependent upon want of vital tone of the diges- tive organs generally, and of this viscus particu- larly. In irritation or inflammation of the bowels, flatus is also generated in great quantity ; but it is usually expelled quickly, especially when they are unobstructed, owing to reaction of their mus- cular coats. INIuch doubt exists as to the source whence this flatus proceeds. The circumstance of its rapid reproduction after its evacuation, when tiie bowels contain no substances which could give ris-e to it, and various physiological considerations, lead me to infer that it is in great measure exhaled from the digestive mucous sur- face ; the gases consisting chiefly of those which pass into, or arc formed by, the blood ; and which, in health, are afterwards given out from it, on the mucous surface of the lungs. Persons who often expel the flatus from the lower bowels, where it evidently is destined to perform useful purposei COLON — ToHPOR OF. 383 in the economy, are most subject to an atonic state of the colon, and to a continued as well as an increased generation of the intestinal gases : and, when circumstances prevent the accustomed frequency of their discharge, are most liable to experience the effects of their accumulation. Atonic distension of the colon by flatus is also a common attendant upon congestion of some one or more of the abdominal viscera, and even upon general vascular plethora, particularly when it oppresses the circulating energies. It also often accompanies hysieria : and, owing to the increased sensibility of the organic nerves, as well as to the morbid irritability and irregular action of the mus- cular fibres of the bowels, gives rise to various painful sensations in their course, and to anoma- lous states of disorder. 4. B. When an atonic andjialulent s^ate of the colon is associated witii morbid irritability of the muscular coat, painful sensations in some part of the course of this viscus are frequently complained of, particularly by females ; are by them often referred toils left arch and descending portion; and are attended by loud croaking or stridulous noises, especially upon full respiration and mental emo- tion. The bowels are usually constipated, and attempts at evacuation are accompanied vvith slight tenesmus, the stools being discoloured, hard, slimy, or in lumps. The abdomen is tumid ; and tenderness, often shifting its place, and varying in degree or duration, is sometimes felt. The whole digestive organs necessarily participate in this state of disorder, and perform their functions imperfectly. The nervous system of organic life acquires increased sensibility ; the cerebro-spinal system becomes morbidly susceptible of im- pressions, particularly in females ; the counte- nance is pale, slightly discoloured, and often covered by an oily moisture ; the tongue is loaded, flabby, sometimes large, presenting fissures on its surface, and the impressions of the teeth on its edges ; the pulse is weak and soft ; and a sense of distension and oppression follows a full meal, 'i'his state of disorder is very frequent in young females, who take not sufficient exercise ; and, when neglected, is often the forerunner of more serious ailments, both of the bowels and of the generative organs. 5. C. Deficient vital energy of the colon also gives rise to relaxation or irregular action of its coats, to constipation, and to collections of fascal matteis, generally with more or less fiatulence. Fcpcal accunuilations to a great amount is most commonly met with in aged females, or persons far advanced in life, who have injured tlie tone of the bowel by the frequent use of cathartics, and have passed a sedentary and luxurious exist- ence. They also occur, but to a much less ex- tent, in children and young persons, especially females from the ninth to the eighteenth year of age, and even upwards. Sometimes they occa- sion large tumours, particularly in the cajcum and sigmoid flexure, but occasionally also in the transverse arch and other paits of the colon. When distension proceeds from retained faecal matters, in additions to the local signs observed on careful examination and percussion of the abdo- men in the course of this bowel, numerous symp- tomatic ailments are complained of. These vary but little from those described above (§4.), and in the article treating of accumulations in the C/EcuM (§11.)' The countenance and skin are generally foul, unhealthy, and devoid of anima-^ tion ; the perspiration is thick, clammy, foetid, and oleaginous ; the breath very offensive ; the tongue loaded or furred ; the lips and gums are pale ; muscular energy is much diminished ; the appetite imperfect or capricious ; digestion diffi- cult; headach or vertigo is often present; the abdomen is tumid, doughy, and inelastic ; the urine is loaded ; the bowels are either constipated or irregular, or, if daily evacuations take place, the motions are slimy, very dark, or otherwise dis- coloured, scanty, and offensive; and the pulse soft, weak, often slow, but afterwards accelerated. In many cases, pains in the loins, abdomen, and limbs are complained of, with mental inactivity, general lassitude, oedema of the lower extremities, flabby inelastic state of the soft solids, leipo- thymia, or fainting, upon quickly assuming the erect posture, and occasional fits of sinking, espe- cially in females. 6. Although torpor of the colon is most fre- quently followed by fajcal accumulations and distension, yet these are neither constant nor ne- cessary results of this state, at least to any very manifest extent ; for sordes and faecal collections may be very injurious to the mucous surface, without proving so froin their bulk or mechanical effects only. Indeed they are often noxious from their acrimony, without occasioning remarkable distension, or any degree of obstruction, par- ticularly when the vital energies are depressed. Their presence, therefore, should be inferred rather from various remote symptoms than from those which are rcferrible to the colon itself. But whenever disorder of remote organs leads us to suspect torpor of this bowel, the practitioner should make an accurate examination of all the abdominal regions, commencing with that of the cagcum, following the course of the colon be- tween the ilium and right ribs, below the epi- gastrium and under both hypochondria, to the left side and iliac fossa, and to the hypogastrium. If a sensation of doughy fulness be felt by the examiner, in any part of its course, the internal surface of the bowel is probaTily lined with sordes and accumulated secretions which its vital energy has not been sufficient to throw off. If hardness be felt, with more or less tumour, faacal col- lections are most likely formed. liut the evi- dence furnished by this examination should not satisfy us : we should inquire after the symptoms stated above, particularly the foul or clammy tongue, foetor of the breath, unnatural state of the countenance, and cutaneous surface, and the of- fensive and morbid evacuations usually attendant upon this ailment. A belief is too generally entertained, that faecal matters and sordes will not accumulate in the colon, unless the patient has been constipated. But they may collect in its cells, the more central part of tiie canal allow- ing daily evacuations ; and they may even remain there for a considerable period, producing much irritation, and even a relaxed state of the bowels ; thereby misleading the judgment of the prac- titioner as to the pathological state constituting the disorder. How, therefore, is he to form an accurate opinion ? By a careful examination of the abdomen in the course of the colon, of the urine, of the stools, and of all the organic and animal functions, and by ascertaining the presence 384 COLON — ToRPon OP. or absence of the symptoms enumerated above ( § 4, 5.). In many cases, when the morbid collections have become acrimonious, an irritative diarrhoea continues for some time, or recurs at intervals, before the morbid matters are fully thrown off, owing to spasmodic constrictions of parts of the bowel. On these occasions, the stools are watery or fluid, and are apparently composed of discoloured faeces, broken down and mixed in a liquid ; at other times they are darkgreen, muddy, putrid, &c. ; very frequently they are slimy, con- taining lumps of hardened faeces, very offensive, and of a dark green or brownish black hue ; and their evacuation is preceded by griping, tenesmus, or a scalding sensation of the anus. 7. D. Imperfect action of the colon is evidently dependent chiefly upon deficient vital energy of the frame, owing either to original conformation, or to various causes of exhaustion, acting chiefly on the digestive canal and associated viscera, with more or less torpor of the biliary functions. When allowed to continue, it perpetuates and augments the morbid condition in which itself originated ; drawing other organs within the sphere of disease, particularly those of mental manifestation, and of generative function, in the female. In young persons it often occasions, oris complicated ivith, curvatures of the spine, chorea, chlorosis, retention or suppression of the menses, nervous tremors and convulsions, &c., and when the distension of the colon is great, dyspncEa or shortness of breathing, palpitations of the heart, 6cc. ; these aftections appearing oftener, peihaps, along with it, as associated effects of depressed vital power, than as consequences of this particu- lar lesion of function. 8. E. The more remote causes of torpor and distension of the colon are, confinement in close and crowded a])artments during the greater part of the day, and sleeping in chambers similarly circumstanced ; constrained and sedentary posi- tions, in which the abdominal muscles remain nearly inactive ; premature and excessive cul- tivation of the mental, to the neglect of the phy- sical powers, — the discipline of modern board- ing schools; the inappropriate combination and use of purgative medicines ; indolent and luxu- rious habits ; occupations which prevent bodily activity ; and particularly those performed by the assistance of machinery, and in hotfoul air, stagnant in crowded manufactories; pre-existing debility of the stomach and digestive canal, or of the frame generally ; paraplegia, or hemiplegia ; dis- ease of the spinal column, its membranes, or chord ; neglect of the first intimation to alvine evacuations ; venereal excesses ; the disgusting habit of expelling the flatus from the bowels ; and whatever weakens, either directly or indirectly, the vital manifestations of the alimentary canal, or disorders the general health. 9. Local and constilutional effects produced hij torpor of the colon. — A. Owing to the course and connections of the colon, to the remote causes above enumerated, and to the depression of di- gestive and vital energy they occasion, the matters discharged into this bowel from the small intes- tines, and the secretions from its own internal sur- face, are liable to be retained for a long time. Fa;cal accumulations and obstructions have been now shown necessarily to follow such retention. It may be next requisite to point out certain of the most important and frequent consequences of these states: — a. One of the most immediate is the retention of the mucous secretion within the follicular glands, as well as in the ducts leading from them; causing distension, and subsequently inflammation and ulceration of them. — b. The retention of fzecal matter in the colon is often followed by absorption of much that otherwise would have been excremenlitious, both into the general curient of the circulation, and, at first, at least, into the blood which flows into the portal veins, where it often excites and irritates the liver, and either is partially removed by this viscus, giving rise to increased or vitiated biliary secre- tion, or contaminates the whole circulating and secreted fluids. — c. The bile also may, particu- larly in warm countries, and in persons in whom it is habitually secreted in excessive quantity, be rapidly conveyed along the small intestines with the chyme, and yet be retained too long in the caecum and colon, whence it may be absorbed, with a portion of excrementitious matters, into the circulation, and give a lurid or unhealthy aspect to the countenance, and occasion various constitutional ailments, characterised chiefly by lassitude, debility, irregular action of the bowels, loaded urine, and a foul tongue. — d. Fsecal ac- cumulations, when allowed to remain too long in the colon, and thereby to give rise to gaseous and noxious formations, not only impede many of its functions, but also favour changes in the vascular action and structure of its coats, particularly of its mucous, sub-mucous, and muscular tunics. — the first and second becoming irritated, inflamed, or even ulcerated ; the third over distended, and thereby deprived of its power of salutary reaction. — e. Among the most common consequences, also, of torpor and fa;cal infarction of the colon, are ha;morrhage from it and the rectum, and hse- morrhoidal tumours, arising immediately from the foregoing changes, and from interrupted circula- tion through the hemorrhoidal veins. 10. B. The effects of over-distension of the colon upon the other abdominal viscera, owing to the extensive connections subsisting between them and this bowel, may be readily inferred. — a. The distended caecum and sigmoid flexure of the colon press injuriously upon the femoral nerves and blood-vessels, the ureters, and the internal iliac veins; producing numbness, cramps, pains, and, owing to the impeded return of blood, more or less oedema, of the lower ex- tremities. The ascending atid descending por- tions of the colon press upon the kidneys and adjoining vessels, occasioning disorder of the urinary secretion, with a sense of weight, or dull acliing pain in the loins. Distension of the right and left flexures, and transverse arch, deranges the functions of the biliary organs, the duodenum, stomach, and spleen. — b. If the colon be dis- tended to the utmost, not only are all these consecutive disorders much increased, but the descent of the diaphragm is also much impeded, and the actions of the heart and lungs materially afl'ected ; occasioning palpitations, intermissions, and irregularity of the pulse, dyspnoea, and a short and rapid respiration. Owing to this effect upon the circulating and respiratory organs, the return of the blood from the head is retarded; various nervous ailments, and headach, are occa- sioned ; and determination of blood to, and con- COLON — Tont'on of— Treatment. 385 geslions and effusions of serum on the brain and its membranes, supervene as the more remote effects. — c. F;ccal or flatulent accumulations in the colon affect, in a very evident manner, the functions of the small intestines and stomach, or increase disorder in these viscera, when it pre- viously exists, — a circumstance of frequent oc- currence, the function of digestion being ei|ually impeded with that of defecation, and owing- to the same primary patholog^ical state, namely, imperfect manifestation of vital power through- out the organic nervous system. ]Ience the in- digestion, the acrid and flatulent eructations, and the imperfect chylifaction and nutrition, so fre- quently associated with torpid function of the large bowels. — d. In children and young per- sons, the mucous sordes, morbid secretions, and excrementitious matters, that collect as a conse- quence of this state, become not only a nidus for worms — remarkably favouring their generation ; but also a cause of irritation to the mucous sur- face, to the absorbing vessels, and to the mesen- teric glands, owing to their partial absorption, either alone, or with whatever chyle may be formed. That diseases of the intestinal mucous surface, and that obstruction and enlargement of these glands, with the consequent marasmus, &c., often arise from the morbid impression and irritation caused by these retained excretions, an extensive experience in the diseases of children has fully convinced me; and that dysentery and diarrhcea, among this class of patients, as well as in adults, frequently proceed from this cause, more espe- cially in warm and unhealtliy climates, will be acknowledged by every experienced practitioner. — e. Even many of the diseases that aftect the skin, and chronic ulcers of the lower extremities, arise from the absorption from the large bowels of excrementitious matters, that irritate and in- flame, in the course of their elimination from the blood by the cutaneous function, the delicate vascular tissue subjacent to the cuticle. This is particularly the case in warm countries and sea- sons, in which the quantity of these matters always passing out of the circulation by the skin is much greater than is usually supposed. What- ever opinion may be formed as to the origin of such affections, there can be no doubt that the treatment based upon this doctrine is the most successful in removing them. — /'. Among other consequences of fa;cal accumulations in the colon, elongations and displacements of this bowel may be ranked ; and when these changes take place, they increase the disorder which occasioned them. It has often been remarked, particularly by Es- QuiROT., HixzE, and others, that displacement of the colon is one of the most common morbid ap- pearances found in the bodies of hypochondriacal and melancholic persons. Torpor or atony of this viscus favouring fsecal accumulations in it, is an important characteristic of these affections, and is manifestly connected with the causation of dis- placement of the large bowel. (See art. Hypo- chondriasis, &:c.) 11. ii. Treatment. — The indications of cure in cases of torpid function of the colon, consist — 1st, of evacuating whatever fascal or acrimonious matters may have collected in it ; and, 2d, of restoring the energy of the digestive organs, and directing such regimen as may prevent a return of this disorder, — A, Many practitioners, deceived Vol. I. by the reports of the patient, or misled by the appearances of the stools procured by the first purgatives prescribed, stop far short of the point to which these medicines should be carried. It is not sutticient to order two or three doses of purgatives, or even of active cathartics ; but they ou^ht to be repeated, or continued so as to secure their full effect, and be combined with such other medicines as will promote their opera- tion without weakening the parts which they stimulate, and will prevent the patient from being debilitated by them. In all affections of the colon, purgatives that procure full, bulky, and not frequent or watery evacuations, should be selected. The preparations of aloes (F. 181. 454.), those of senna combined with gentian (F. 266. 430.), castor oil, rhubarb and mag- nesia, precipitated sulphur (F. 45. 82. 96.), the compound jalap powder, &c. (F. 635, 636.652.), operate in this manner ; and, particularly when we wish to promote the secretions from the in- testinal surface, may be exhibited after a dose of calomel or blue pill taken at bed-time ; or the compound extract of colocynth, or the aloes and myrrh pill, or jalap, may be combined with one of these mercurial preparations, and the extract of hyoscyamus, (see F. 462. 471.881.). When it is necessary to continue the exhibition of purgatives, they should be either alternated with tonics, or combined with vegetable bitters, which will both promote their action, and increase the strength of the patient, (see F. 562. 572.). When the motions are morbid, great advantage will be derived from resorting to the use of clys- mata, as recommended in the article Coi.ic (^57.66.77.). If faical collections to a great extent have form.ed, they are indispensable remedies; and if symptoms of obstruction, or of irritation, or chronic inflammation, are manifest, they should be assisted by the external means there advised (§ 66. 83.). Under every circum- stance, the exhibition of purgatives by the mouth, and of enemata, should be persisted in until the stools assume a natural appearance. (See also the Treatment of diseases of the Ca:cum, and of Constipation). 12. In cases where retained matters in the colon have occasioned irritation, such clysters as will promote the full evacuation of its contents, and at the same time allay irritation, ought to be resorted to from time to time. These will relax irregular constrictions of the bowel, promote the operation of purgatives given by the mouth, dis- solve hardened faeces, and loosen the adhesion of tenacious secretions lodged in its cells. In cases of this description, the soap injection, with, or without, the addition of castor or olive oil, the compound decoction of barley with common salt, or the potassio-tartrate of soda ; the infusion of linseed, with the biborate, or the carbonate of soda and assafoelida ; the decoction of marsh-mallows, with the infusion of camomile-flowers and linseed oil ; and the turpentines, triturated with white of egg or mucilage ; will have a most beneficial effect, particularly when assisted by appropriate laxatives taken by the mouth. When the irri- tation of the bowel appears to be accompanied by spasmodic constriction, the aperients should be combined with either camphor, ammonia, ipe- cacuanha, hyo-cyamus, the compound galbanum pill, &c. (F. 463. 890.), according to existing cir- C c 386 COLON — Unnatural Positions of. cumstances, la cases of this kind, much debility is often present, and the functions of the stomach require the aid of light nutritious food and gentle tonics ; the purgatives being exhibited either at bed-time, or early in the morning, so as not to disorder the functions of the stomach. Such eccoprotic or alterative laxatives as are slow in their operation (F. 503. 892.) should be taken at night, and purgatives or cathartics that are quick in tlieir action early in the morning, so that they may not interfere either with necessary food or with requisite avocations, 13. When tlie faecal accumulations cannot be removed by the above means, others of a more powerful nature, as the elaterium or croton oil, assisted by colocynth or terebinthinate injections ; and the purgatives advised in the more obstinate cases of colic and constipation, assisted by shocks of electricity and galvanism passed through the abdomen ; should be resorted to. When the bowels are acted upon with great difficulty, the stools being very black and offensive, we may generally infer that not only is the colon torpid, but the follicles are loaded or obstructed, and their secretion morbid. In these cases, galvanism, as shown in an instructive case by Mr. Clarkson, promises to be of much service. In several in- stances, when the pulse has been weak, and the skin cool, I have added the extract of nux vomica to the purgative, with much advantage, and combined a portion of this active substance with the liniment (F. 306.) which has been rubbed on the abdomen. 14. B. In order to prevent the re-accumula- tion of morbid matters in the colon, and give tone to the digestive organs generally, the patient should daily attend to the first intimations of eva- cuation, and promote the functions of digestion and defaecation, by resorting, whenever they flag, to aperients or laxatives, combined with tonics. Blue pill, with the aloes or myrrh pill, or F. 470., may be occasionally taken at night, and the tonic and aperient medicine (F. 266.) the following morning. The diet and regimen should be carefully regulated, and exercise be taken in the open air, either on foot or horseback. After health has been in a great measure re- stored, chalybeate mineral waters, and the arti- ficial waters of Ems and Pyrmont, will be pro- ductive of much benefit; but frequently it will be more advantageous to commence with the Harrogate or Leamington waters, or with the ar- tificial waters of Seidschutz, Eger, or Carlsbad, and have recourse subsequently to the chalybeales of Cheltenham or Tunbridge. In many cases, the warm or tepid salt water douche over the abdomen, sea-baihing, frictions of the surface of the body, and of the belly especially, ni^ht and morning, with either a hard towel or brush, will prove of much service. 15. II. Unnatuual Positions of the Colon, &c. — This viscus is not infrequently found mis- placed, and forming singular flexures, in those who have suffered from constipation, fajcal re- tention, dysentery, hypochondriasis, or melan- cholia. But there are no constant symptoms by which such changes can be inferred with much certainty during the life of the patient. M. Es- nuinoL found, out of 168 dissections of melancho- lic patients, the colon displaced in 33. 'J'his chan^'C hud previously been remarked by JNJoii- CAGM (VJc .Set/, et Cans. Morb. epist. iv. art. 16. et seq.), Haller (Elem. Physiol. 1. xxiv. sec. 13. et seq.), Soemmerrtno (De Corp. Hum. Fabrica, t. iv. p. 313.), and Wells, but unconnected with mental disorder. In many cases, the bowel is not only displaced, but is also elongated, with- out being divided, as in its natural state, into cells by partial partitions, and the tonic action of its longitudinal bands. These changes seem to be favoured by relaxation of the mesocolon, and by complete atony of those bands. An elongated and displaced state of the colon is common in cases of old hernia ; and in these is often con- nected with a stretched appearance of the mesen- tery, but without any organic change of the coats of the bowel : but sometimes the unnatural flexure or duplicature is adherent at its opposite sides, forming a large loop ; particularly when it has been consecutive of acute or inflammatory dysentery. Displacement may take place in any part of the bowel, but it is most common in the transverse arch and sigmoid flexure ; the former part hanging down towards the pubis, generally in an unadhering, but occasionally in an adher- ing, loop ; and the latter part crossing over to the right side of the abdomen, or passing behind the pubis. Duplicatures of the colon may also form at the right or left parts of its arch ; the op- posite peritoneal surfaces being more frequently, in such cases, adherent to a considerable extent by coagulable lymph. Several plates are given by Rlr. Annesley, illustrative of this change ; wliich is not infrequently observed in fatal cases of chronic dysentery, particularly in warm climates. That these unnatural flexures are also often caused by fffical collections, and by obstructions to the fjEcal discharges situated either in the rectum or in tiie sigmoid flexure of the colon, appears very probable ; but they may also arise from a na- turally elongated formation of the bowel. That, when once produced, they favour such collections, with their consequences, particularly severe dys- peptic and hypochondriacal ailments, dysentery, severe colic, or even ileus, and great distension or inflammation of the colon or small intestines, can- not be doubted ; but that they will occasion in- sanity or melancholy, as Esquirol and Hinze suppose, seems not to be made out. Dr. Yelloly states, that Mr. Lawrence and Mr. Dalrywple, who have examined many bodies of insane per- sons, have very seldom observed in them any devi- ation from the natural course of the colon, 16. As we have no certain or even probable means of ascertaining the existence of Uiese changes during life, it is unnecessary to offer any remarks on their treatment. But this is a matter of but little importance, as the disorders which they produce are in all respects the same as those already noticed ; and even if their nature were recognise], ' * ^ have conformably with the received acceptation of Iptharev in this country, made it the slightest form of "soDoro^e coma ; although the ancients, our countryman WiLi IS who has written ably on this affection, the greater number of writers of the sixteenth and seventeenth cen- turies and many modern German authors, have defined it nearly as follows : — " Profound sopor, or preternatural sleep with fever and delirium ;" thus applying the term to the more profound state of febrile coma. 387 Lethe, et af-yoi;, celer), Vetermis, Lat. — is chw racterised by slight but constant somnolency, or mental and corporeal torpor, evidently depending upon a morbid condition of the brain ; when addressed, the patient answers forgetfully, and afterwards sinks into the same stale as before. This is a slighter grade of the following varieties, and may pass into them. 5. iii. Coma SoMNOLENTUM — Cotaphorci — is characterised by sopor or profound sleep, without the power of wakening spontaneously ; the patient, when roused, slowly opening the eyelids, and answering either rationally, forgetfully, or inco- herently, but iminediately afterwards falling into the same state of profound sopor ; and frequently by relaxation of the muscles of the lower jaw, it thereby differing from apoplexy and carus. 6. iv. Co7na profundum — Carus, Kapof-— is characterised by its "more or less sudden invasion ; by the profound sopor, the eyes being shut as in a deep sleep, and the patient being generally de- prived of motion and sensation. Sometimes, however, upon being called to loudly, he opens his eyes, but immediately shuts them, without answering any question ; and occasionally when pinched he draws away the part, indicating re- maining sensibility ; the breathing is undisturbed or irregular, sometimes laboured, but without stertor : there is seldom much febrile heat, and the evacuations are passed without consciousness. 7. A. Review of the chief symptoms. — a. The pulse varies greatly in each of the above states of coma. It is generally slow, full, and soft; but it is also often small and quick in coma vigil, or in any of the varieties, when accompanying the last stages of fever ; and small, hard, and some- times inegular, in the coma attendant upon in- flammatory action of the brain or its membranes. It is also frequently unequal, intermittent, and generally slow, but sometimes also quick, in the coma produced by injury of the brain, and by hemorrhage or effusion of fluid within it. — b. The respiration is often natural, as in coma vigd ; sometimes accompanied by sighs, or laboured, as in coma profundum ; frequently slow, and very seldom stertorous, unless in the coma of apo- plexy.— c. The pupils of the eyes are generally more or less dilated, and sluggish in their mo- tions, or altogether insensible to light ; but they are sometimes, in the most unfavourable cases, much contracted, or one contracted and the other dilated. — d. The countenance is usually tumid, and without expression ; sometimes pale or bloated, or red or injected ; the eyes are pro- minent or suffused ; and the head somewhat warmer than natural, or of the healthy temperature, the beat of the carotids being full or strong : in the coma consequent upon fever, and in coma vigil, the features are commonly pale, sunk, and cool ; the action of the carotids being weak and soft in some cases, and hard and oppressed in others. — e. The mental powers are commonly suppressed ; but upon being momentarily excited, they some- times appear more or less disordered, particularly in any of the states of coma supervening upon fever, or inflammation of the brain or its mem- branes ; low delirium and febrile heat then being also present. — f. The surface of the body is often natural, sometimes cold or clammy ; but when the affection is caused by fever or inflammation, the temperature may be somewhat elevated, C c 2 388 COMA AND LETHARGY — and the skia dry.— ^^ The extremities are fre- quently natural at first, but they are also often cold or clammy, or become so. — h. The posi- tion is commonly supine, without attempts at motion, in profound coma ; and, in tiie worst cases, the patient slips down in bed. — i. The tongue is natural, or merely much loaded, in some instances ; but in coma symptomatic of inflamma- tion or fever, it is usually furred, dry, and brown, hard, and constricted. — k. The alvine excretions are either retained, or passed without consciousness. 8. B. Duration and termination. — a. Any one of the forms of coma may be sudden in its attack, and terminate speedily in death ; or it may come on gradually, and be of short duration, sense and voluntary motion as slowly returning. 'J'he seizure may be repeated frequently, or it may be periodic, particularly when attendant upon epi- lepsy, or remittent fever of a bad form. When its accession is slow, it often commences with drowsiness or headach, — b. Its duration is very various; the lethargic and slighter varieties being occasionally of long continuance — sometimes lasting many weeks, and spontaneously passing off. The more profound slates of coma frequently end fatally in a few hours, and seldom continue longer than a few days. I however attended a case of profound coma with Mr. BusiiEt.i., that continued several weeks, and yet terminated in recovery. — c. It may terminate in eitlier recovery or death, or in some other disease with which it is more or less closely related, — as apoplexy, para- lysis, insanity, or melancholia, epilepsy, and epi- leptic or other forms of convulsions, with which it occasionally alternates ; and in inflammation of the brain or its membranes, 9. C Diagnostic remarks. — The states or grades of disease described above may pass one into the other, or into some other malady, whether they appear primarily or consecutively. They are often very nearly allied to, or rather are less degrees of apoplexy; and apparently consist of a somewhat similar condition of the organic nervous power and vascular action within the brain, to that which obtains in a great propor- tion of the attacks of that disease (§ 62. et seq.), particularly those which do not immediately de- pend upon haemorrhage. — a. Tiie close resem- blance of many cases of coma vigil to ecstaci), and of the other states of coma to catalepsy, not only as to the grouping of the sensible phenomena which respectively constitute them, but also as to their presumed proximate causes, indicate that cata- lepsy and cataleptic ecstasy are merely unusual modifications of the state of cerebral disease now under consideration. — b. The absence of stertor constitutes the chief difference between the most profound state of coma, carus, and apoplexy. — c. The fulness and strength of the pulse, par- ticularly in the carotids, and the natural or strong state of the respiration, are sufficient to distinguish eoma from syncope, in which latter the action of the heart is greatly diminished i)rimaiily, the func- tions of the brain failing consecutively. — d. Coma diffc-rs from asphyxy in the circumstance of the respiratory functions being first suppressed, and subsequently the action of the heart in tiie latter ; the consec(uent coma arising from congestion of venous blood in the brain, ])roduced by the abolished respiration, ami obstru(;ted circulation through thy lungs and cavities of the heart. iDioPAtHic — Symptomatic. 10. II. Op Primary or Idiopathic Coma. — Either of the varieties described above may occur as a primary affection arising from states of the organic nervous power and circulation within the brain, which will be noticed in the sequel {§ 13.), and which are commonly produced by the fol- lowing agents: — Causes. — The continued or intense action of cold upon the nervous system and circulation ; the influence of narcotics, par- ticularly in some constitutions; indulgence in spirituous or intoxicating liquors, either carried too far or continued too long ; venereal excesses ; insolation ; fatigue or prolonged watching ; the influence of particular odours, condiments, or kinds of food in some temperaments ; inanition or exhaustion of vital power, by whatever cause, especially in the aged of the male sex ; immode- rate evacuations or discharges ; mephitic or car- bonaceous fumes or gases ; sadness, anxiety, fright, terror, anger, and other violent mental affections ; the inappropriate use of either warm ■ or cold baths ; the exhaustion of vital or nervous power by excessive or long-continued pain ; con- cussions and injuries of tlie brain ; erratic, atonic, or relrocedent gout ; pregnancy or child-bearing ; and suppression of the menses or lochia ; are the causes which produce, in a primary form, any of the states of coma described above. 11. III. Symptomatic Coma. — Either of the varieties of coma may supervene in tlie advanced course, move rarely on the invasion, of inter- mittent, remittent, or continued fevers, particu- larly typhus ; of inflamitiations of the brain and its membranes ; and of insanity and melancholia. Simple determinations of blood to, or congestion of, the encephalon, will frequently be sufficient to induce the slighter states of coma ; whilst its more severe or profound conditions are common con- sequences of effusions of blood or serum, and of numerous organic changes occurring within the head. (See Brain — Organic Lesions of its Mem- branes and Substance, § 21 — 84.). It is one of the most important symptoms that appear in the course of erysipelas of the face or head, and of exanthe- matous fevers ; it may likewise supervene, par- ticularly coma vigil, in the advanced stages of several acute maladies evincing exhaustion of the vital energy of the brain anil nervous system, and in those in which the circulating fluid and secretions become vitiated or contaminated. 'The coma, which is usually consecutive of epileptic or convulsive attacks, consists of the slighter varieties denominated lethargic and somnolent, formino- a part or conseijuence of these diseases. Coma is sometimes, also, a symptom of severe hysteiia, particularly in plethoric persons with interrupted catamenial discharge; and, in rare instances, of worms, but by no means so frequently as stated by some writers. The occasional occurrence of any of the varieties of coma from suppression or retention of urine, from metastasis ot gout and riicumatism, from the suppression of accustomed (lijcharges, and more rarely from the retrocession of cru])tions, and the drying up of old ulcers, should not be overlooked, particularly as such morbid relations require a peculiar and appro- priate treatment. 12. IV. 'i'he Prognosis in most cases of coma is unfavourable ; for, although many will recover — even the great majority — the slighter cases will often present sudden cliunges, A much more COMA AND LETHARGY— rATHOLooY oi. 389 favourable opinion may be entertained of coma ■when it is produced by narcotics and spirituous liquors, than when it comes on in the course of febrile or malignant diseases, particularly after the absorption of morbid matters into tlie blood. Tile occurrence of epistaxls, of swellings of the parotids ; the accession of the catumenia, or the lia?morihoids ; a fiECuIent diarrhoea ; copious general perspiration ; abundant discharge of urine depositing a sediment ; erysipelas, eruptions, boils, gout, or rheumatism, appearing in external parts, ])articulavly the lower extremities; and the re- turn of sound natural sleep during a state of coma vigil, or typhomania; are very favintrable — indeed, critical symptoms. 'J'he persistence of the affection ; scanty secretion or retention of 111 ine ; subsultus ; spastic contractions of one or more limbs; loss of speech, and total insensibi- lity; distortion of the eyes; vomiting or retching; a previous breaking up of the constitution ; pre- existing cachexy, and old-age ; bleeding from the ear, when it has been caused by external injury, as in concussion ; constant supine posture, and slipping low down in the bed ; coldness of the head, with sunk countenance, and cold clammy surface ; loss of the faculty of deglutition, or re- turn, of matters put in the mouth; are very w/t- favouraMe signs. 13. \ . Pathology. — A. Primary and symp- tomatic coma may be resolved into the following fiatholog'ical states, either of which may exist singly, or in conjunction with one another : — 1st, Exhaustion of the organic nervous influence sup- plying the brain, or torpor or suppression of it, inducing a state which may be called paralytic — a paralysis of all the cerebral functions : this condition is produced chiefly by directly or indi- rectly sedative causes, and by whatever depresses or exhausts the vital energy generally, or the nervous power in particular: it may be attended by ana,>mia of the brain ; and then the coma will be preceded by, or accompanied with, convul- sions, or alternate with them; but it is more frequently productive of some one of the states about to be noticed, especially congestion, and occasionally effusion within the head: it may go on to dissolution, or it may be followed by re- action and active congestion or acute inflamma- tion ; the comatose states sometimes observed at the invasion of dangerous forms of fever, and of certain apoplectic seizures, and the coma of the earl}' stage of concussion of the brain, being of this description. — 2d, Congestion of the capil- laries, veins, or sinuses of the brain, is, perhaps, the most common morbid condition that obtains in coma, as respects the vascular system : but this state can scarcely arise, unless the organic nervous influence with which these vessels are supplied has been exhausted or depressed, excepting in those cases where the congestion proceeds from obstructed return of blood by the sinuses, or by the large veins coming from the head : in many cases, therefore, the existence of this slate pre- supposes that first described, at least to some ex- tent ; and whether thus originating, or proceeding from impeded or obstructed return of blood, will equally occasion pressure of the organic nervous and cerebral tissues, and suppression of their functions: congestion of the blood-vessels within the head may, moreover, be associated with some Other morbid states, as with contamination of the circulating fluid ; as in the coma that occurs in the advanced stage of typhus, and when morbid se- cretions are absorbed into the blood. — 3d, Active determination of blood to the head will seldom occasion more than lethargy or coma vigil, — states which are frequently produced in this way in the advanced stages of various acute diseases, and sometimes by the use of anodynes, which, in some constitutions, disorder the nervous functions and excite the cerebral circulation. — 4th, Inflammation of the brain or membranes, owing to the tume- faction consequent on it, &c., will often be ac- companied with coma; and still more frequently terminate in it, — as shown in the article on that disease : and, as we have seen that coma will thus proceed from very different or even opposite states of organic nervous power, and of vascular action, it becomes a matter of the utmost practi- cal importance to distinguish them with accuracy : but not only may those pathological conditions exist in different cases, they may obtain at differ- ent stages of the same case : thus the coma of concussion, in which the first of those conditions exists, may successively pass into congestion and inflammatory action, forming the three stages which Mr. Abernethy has very accurately pointed out in concussion of the brain; coma, accompanied with very different symptoms, and modified in degree, being present throughout. — 5tli, The circulating fluid itself may be more or less changed ; it either being of a darker colour, and in a less decarbonised state, than in health ; or having entirely lost the power of coagulating, or presenting a coagulum of a weak or dissolved texture. (See Blood, § 94.) In addition to this state of the circulating fluid, congestion of the cerebral vessels and increased action of the heart may exist, as in the advanced stages of malignant, exanthematous, and febrile diseases; these associated lesions may be also preceded by, or coexistent with, depressed vital or organic nervous energy of the encephalon. — 6tli, Effusion of blood or serous fluid within the brain will give rise to profound coma, generally as a conse- quence of either the first, second, third, or fourth preceding states, occurring either primarily, or in the advanced progress of febrile diseases. 14. B. It must be evident, that a successful treatment of coma, under the numerous circum- stances and diversified forms in which it presents itself in practice, must be based upon a recogni- tion of the pathological states that occasion it. But how are these states to be ascertained 1 The difficulty even of an approximation to this know- ledge is doubtless great ; but the practical results, to which the information leads, are of the utmost importance, as respects both the issue, and the reputation of the physician. I shall therefore offer a few remarks, with the view of facilitating the investigation of this subject, and placing our intentions of cure upon a rational basis. — a. In the Jirst of the above pathological states, the pulse is weak, soft, unequal, or intermitting; the pulsation of the carotids is smaller, weaker, and softer than natural ; the breathing is soft, slow, or laboured, but without stertor ; the limbs and muscles are relaxed, and deprived of sensibility ; the surface is pale, cool, moist or clammy, par- ticularly the extremities; the head is cool, or at least not above, frequently below, the natural temperature ; the countenance is pale Qr sunk ; Cc 3 390 COMA AND LETHARGY — Treatment OF. the eyes open, without suffusion, and the pupils dilated ; the tongue is soft, flabby, and broad, unless in the last stages of fever, when it is covered by a brown or dark fur ; and the skin is dry or harsh. The feebleness and intermissions of the pulse, the depression of animal heat, and the loss of sensibility and voluntary motion, are generally in proportion to the exhaustion of vital power in the brain, and therefore important guides in the treat- ment of coma. — b. The second pathological con- dition, or that of congestion, will vary in different cases, or even in different stages of the same case, from the depressed state of vascular action and animal heat, described above, to that now to be noticed. The pulse is oppressed, or full, slow, irregular, occasionally nearly natural, — in the carotids somewhat fuller, stronger, or more labour- ing, than in health, or in other parts where it can be felt ; the respiration is either natural or slow, laborious or irregular ; the countenance is slightly tumid, bloated, or livid ; the eyes are somewhat suffused and prominent, the pupils dilated and in- sensible ; the temperature of the head is occa- sionally natural, but more frequently slightly increased, and the face and scalp moist ; the ap- pearance of the tongue, as in the foregoing state, varies according as the coma is a primary or con- secutive state of disease ; the evacuations are either retained or passed insensibly ; and sensi- bility, voluntary motion, and mental manifest- ation, are abolished in proportion to the extent of depression of the organic nervous influence of the brain, and of vascular congestion. This state may supervene on the former with more or less rapidity, and terminate either in a return to healthy action, or in the third a.nd fourth states referred to. — c. The third and fourth patho- logical states are different grades of vascular action, often arising out of the preceding : that consisting of active congestion or increased deter- mination of blood through the cerebral vessels may present nearly the same symptoms as those characterising congestion, but in a much slighter degree ; sensation and voluntary motion not being quite abolished ; the coma being in its slighter grades, — as lethargy and coma vigil, very rarely coma somnalentum. The pulse and respiration may not be materially affected, or it may be merely accelerated ; the temperature, even of the head, may also be natural, or but slightly in- creased, that of the extremities being depressed ; the countenance may not be materially changed ; in some cases it may be even sunk or depressed ; but the carotids generally beat more fully and strongly than in health ; and the mental mani- festations are not merely more or less suppressed, but sometimes also disordered. The state of in- flammatory action, and its consequences, give rise to phenomena of greater intensity than those now noticed, and which have been very fully de- scribed in another place. (See Uhain, $ 180.) — d. The fflh state which I iiave referred to, as obtaining in some cases of coma, seldom occurs alone, but is associated witii one or two of the preceding, particularly ihefrst, second, or even the third conditions. It is characterised chiefly by a lurid, foul, diity, or cachectic appearance of the surface; a sunk or sallow countenance; a frequent, soft, small, or broad and open pulse : by low delirium or typhomania ; starting of the ten- dons, and picking of the bed-clotlies ; preceding and associated febrile, exanthematous, or malig- nant diseases ; and by foetor of the secretions and excretions. In some cases, when this state has come on rapidly, the tongue is merely broad, flabby, marked by the teeth at the edges, and covered by a creamy sordes ; but in the last stage of acute diseases, it is deeply furred, or coated with a thick mucous sordes of a dark brown colour, often extending to the gums, and even to the lips. — e. The si.rt/i and last state, that of effusion, may be consequent upon any of the preceding, and be caused by one or more of them. If the effusion be sanguineous, the attack is often sudden ; the respiration is generally ster- torous, irregular, iScc. ; and signs of local para- lysis may often be detected. (See Apoplexy.) If serum be effused, the coma is as profound as that caused by sanguineous effusion ; but slower in its accession, and less frequently attended by stertorous breathing, and local paralysis ; it is also more commonly preceded by signs of inflammation, active determination, or congestioiiof blood, within the head. (See Dropsy of the Encephalon.) 15. VI. Treatment. — The foregoing patho- logical states will often insensibly lapse into one another, as in concussion and inflammation of the brain, giving rise to distinct stages of these dis- eases, and requiring a different treatment for each i and, according as they may thus vary, so will their symptoms be modified ; the principal pheno- mena connected with the cerebral functions,' the pulse, the respiration, the animal temperature, the state of the head and carotids, &c. being the practitioner's guides in the direction and com- bination of his means of cure. These means will now require no further notice than a bare enumeration, as they are more fully dis- cussed in the articles on the diseases in which coma, in one or other of its forms, most commonly presents itself. 16. A. The first pathological state (§ 13, 14. a.) requires stimulants and counter-irritants ; but these remedies must be exhibited with much caution ; as an excessive or inappropriate use of them might produce, even in the slighter cases of cere- bral exhaustion, determination of blood to the head, and convert congestion into inflammation, — consequences which will frequently supervene, at least in a slight degree, as in concussion, not- withstanding the utmost care to avoid them. The preparations of ammonia, musk, and cam- phor, internally and externally employed ; enemata, containing the same medicines, or the infusion of valerian, castor, assafoetida, or the le- rebintiiinates ; win& and cordials, given frequently and in small quantity ; irritating or vesicating embrocations, cataplasms, sinapisms (Celsus, Aret/eus, Paulus yEgineta), to the head, and plasters, as well as moxas, and the cautery (Zacutus Lusitanus, Ilnomus, and Seveiunus) applied to various parts, or even to the head it- self; blisters to the nape of the neck, behind the ears, or to tiie head (Boxet, Lanzani, Syden- ham); volatile substances held to the nostrils or applied to the temples ; errhines (C-i:mus Aure- lianus, &c.) ; urtication (Aret^eus Selti) ; galvanism and electricity (Hufeeano, Sec); the aftusion of warm, tepid, or, in some, cold water on the head ; active and stimulating emetics (UiviERE, lliGAL, &c.) ; purgatives combined with stimulants, antispasmodics, and tonics ; COMA AND LETHARGY— Treatment of. 391 cathartic clysters, conjoined with similar sub- stances ; the use of coffee and green tea, particu- larly when this state of disease has followed the ingestion of sedative or narcotic poisons, and after the stomach has been evacuated by emetics and the stomach pump, and washed out by the injection of warm water ; are severally of use in this state of coma, and may be resorted to in various combinations, according to the circum- stances and severity of the case. All these mea- sures are, however, not equally applicable to every case where this pathological state may be presumed to exist ; but the judgment and expe- rience of the practitioner can alone enable him to employ them in an appropriate manner ; the shades of difference in particular cases requiring certain means, or peculiar combinations of them, scarcely admitting of description, at least within the limits to which I am necessarily confined. 17. B.Thesecojfrf pathological state (§ 13, 14.6.), when closely verging, as it occasionally does, upon the first, will require several of the means enu- merated with respect to it ; whilst, when fully formed, and approaching that of active determin- ation or congestion, but few of them are appli- cable. Much, however, will manifestly depend upon the habits, and the constitution of the pa- tient ; upon the nature and duration of the disease of wiiich coma is an advanced phenomenon ; and upon the state of the pulse, the temperature of tlie head, and the character of the countenance. The ^'rst state is injured by blood-letting in any form, it being even not an infrequent consequence of inanition, or even of anaemia of the brain ; but this second state will generally be benefited by depletion, and in proportion to its approxima- tion to the third and fourth states described above (§ 13, 14. r.). The question chiefly is as to what extent it may be carried, and the manner in which it may be performed. In the majority of cases, local depletions by cupping between the shoulders and nape of the neck, or by leeches applied behind the ears or on the neck and occiput; by simple scarifications by a lancet in the last-named situation, in some cases; in others, bleeding from the feet .whilst they are placed in warm water, and cold or tepid water is being poured in a stream upon the head ; and in certain instances the application of a number of leeches on the inside of the tops of the thighs, or about the anus ; are the preferable modes of having recourse to depletion in this state of disease : but the extent to which the evacuation should be carried must entirely depend upon the symptoms and circumstances of the case, and the effects produced by it. In addition to this important means, purgatives ought to be given by the mouth, and their action increased by cathartic clysters, in which either assafcetida, valerian, camphor, the terebinthinates, or other antispas- modics and stimulants, may be also exhibited. Counter-irritants and derivatives should be ap- plied, but at a distance from the head; and, while a frequent operation of the bowels is pro- cured, the functions of the skin and kidneys should be promoted by diaphoretics and diuretics, the extremities being kept warm, the head cool, its hair cut off, and the shoulders highly ele- vated. In many instances of this state, even local depletion should be cautiously employed ; and in these, as well as in others, much advantage will often accrue from having recourse to resto- rative means. It is in this pathological condition of coma, and in those about to be noticed, that oil of turpentine, in large doses, so as to act freely on the bowels, has proved so beneficial in my practice. This state very generally obtains in coma from narcotics and spirituous liquors ; and is then, especially, very remarkably benefited by the cold affusion on the head, and the prepara- tions of ammonia. 18. C. Thethird a.nd fourth states (§ 13, 14, c.) require nearly the same treatment as the second, but carried much further ; general and local de- pletion, cold affusion on the head, or the applica- tion of ice, or evaporating lotions ; the most active cathartics, clysters, and derivants or coun- ter-irritants, and the other measures, as fully pointed out in the article on Injiummation of the Brain (§ 174.). When these states have gone on to effusion either of blood or of serum, — the siith pathological condition adduced, — the treatment recommended in Apoplexy and in Dropsy of the Encephalon (see these articles) should be employed. 19. D. The Jifth pathological state obviously requires stimulants, tonics, and antiseptics, par- ticularly camphor, in considerable doses ; the chlorides of sodium, potassium, &c. ; wine, with cordials, spices, &c. ; bark, with camphor ; purga- tives conjoined with stimulants, so as to excite the eliminating or depuratory functions ; cathar- tic, tonic, and antiseptic clysters ; calomel, combined with camphor and ammonia, or musk; the turpentines given by the mouth, and in ene- mata, with capsicum and aromatics; external derivation and counter-irritation ; the various balsams, with the chlorides, &c. ; quinine, with the aromatic sulphuric acid ; the preparations of cinchona or cascarilla with soda, or with the hy- drochloric acid, or hydrochloric aether ; Cayenne pepper internally, as well as externally in camphorated embrocations, &c. When coma is consequent upon the retrocession of gout , rheumatism, erysipelas, or cutaneous eruptions, the propriety of having recourse to sinapisms, rubefacient pediluvia, and other derivatives, in addition to such other means as the symptoms of the case may suggest, must be obvious. If it follow suppressed discharges, we should endea- vour to restore these, or produce one supplemental of them. (See the treatment of the diseases of which coma is most frequently an important symptom.) BiBLioG. AND Refer. — Hippocrates, IIej/ vovrtuv, iii. Opp. p. 488 Galen, Lib. de Comate, cap. ii.' t. vii. p. 195. — Celsus, 1. iii. cap. 20. — Aretceus, Cur. Acut. 1. i.'c. 2. — . I'aulus JEglneta, 1. iii. cap. 9. et 10 Oribasius, Synop. 1. viii. c. i. — Avicenna, Canon. 1. iii. fen. i. tract, iii. c. 7. &c Zacutus Lvsitanus, Pr. Hist. 1. vii. obs. 4. (The actual cautery belmul the ears.) — Rhodius, 1. i. obs. 3fi. (The cautery to the neck.) — Severinus, De Efficac. Med. p. 21S. — I}iillomus, Consult. 1. i. 45., 1. iii. 32 Willis, De Anim. Brut. Path. cap. 3, 4, 5 — Biverius, Prax. Med. t. i. cap. i. — Sydcnhani, Opera, p. 281. — Bonet, Sepul. chretum, 1. i. sect. iii. obs. 5. 13. 18 Eiscn, De Comate Somnalento. Basil, 1674. — Heinz, De Affectibus Soporosis. Argent. I(i77. — Morgagni, Epist. v. art. 13. 23. 29—36. Bellini, De Morbis Capitis, p. 455. — Hoffmann. De Af- fect. .Soporosis, obs. 5. Opp. iii. p. 216. — Boerhaave, De MorlMs Nervorum, p. 640 — Cartheuser, De Typhomania. Francf 1750 Kriiger, De Somno, Morborum Matre et Fillo. Helms. 1754.— //a/to", Observat. Med. Pract. Goct. 1750. — Saiivages, v. iii. class, vi xxix. 7. — Bang, in Acta Reg. Soc. Med. llafn. vol. iii. p. 127. f'ogel, Beo- bachtungcn, No. 9. — Hinze, in Stark's Arctiiv. b. vi. p. 178. — Behrends, in Uiijeland's Journ. der Pr. Heilk. b. .\i. 2 St. p. 1. ; Ibid. b. xx. 4th St. p. 5. {Galvanism re- C c 4 392 CONCRETIONS, BILIARY- •Pathology or. commenced in.)-^Iiigal, in Mem. de Toulouse, 1788. — Portal, Cours d'Anatomie Med. t. i. p. 21 . [An instance of coma from narrowing of the carotid arteries.)' — Selti, in' BrugnateUi, Bibliotheca Fisica, v. ii. — Brewster, Ediii. Philos. Trans, for 1817. {Idiopath. coma from coitgestiuij.) — Cooke, Treatise on Nervous Diseases, v. i. p. .S72. (Idiopath. lethargy.)— J. Frank, Praxeos Med. Univ. prae- cepta, par. ii. vol.i. sect. i. p. 357. — /?('A«,',in Encyclopiid. Worterbucii der Med. Wissenscliaften, b. viii. p. 107...— {Boriet's Thesaurus Med. Scrip, t. i. p. 715., and iiis Mer, curius, &c. ]). 61tj. ; also Mangel's Bibliotheca Med. Script., art. Carus, and Ploucquct's iNIedicina Digesta, art. Co7iia, maybe consulted by the curious; but little information of importance will be obtained.} CONCRETIONS, Biliary. — Svn-. CaU culi or hapitii Oystici ; Calculi Fellei; C. Biliares;'C. BUiarii ; Chqlelhhi ; Hepatalgia Calculosa ; Var. Auct. Concrementa Bitiuria, Soemnj'errlng'. Chtriotithus, Good. Calcuts Biliares, ¥r.>Difi, Galleiistein, Ger. Gall-stones, Gl'assif. i.- C/ttss, Cceliaca ; 2. Order, ■ ■ Splanchnica, Gen. iii. (Good). I. Class, ,. I-l.- Order (Author). I.'Defin. Concretions formed in the bile-pas- sages, and occasioning in many instarfces more or less disturbance, with paroxysms of pain commonly referred to the right epigastrium and hypochon- drittmt reaching to the back, t\r., with increased, suffering whilst passing into the alimentary canal, and often giving rise to sickness or vomiting, to jaundice, and severe attacks of colic. 2. Biliary concretions were first noticed by Benevenius, Fali.opius, Vesalius, Kent.mann, and Fernelius, who were nearly contemporaries. They were afterwards more accurately described by Glisson, Hoffman, INIorgagni, Bianchi, Boerhaave, Van Swieten, and particularly by Haller ; and the more recent researches of HebERDEN, SOEMMERRING, ThOMSON, ThENARD, BosTOCK, Merat, and Chevreul, have greatly advanced our knowledge of their nature and pathological relations. Notwithstanding the fre- quency of these concretions, and the very serious symptoms they occasion, but little attention has been paid to them by practical writers since the appearance of Soeji.aierring's Treatise ; and they have been nearly overlooked by the majority of systematic writers. Haller remarks (what every pathologist will acknowledge), that they are in- finitely more frequently found in post mortem researches than calculi of the urinary passages ; and Heberden agrees with him in admitting that, while urinary calculi are much more com- mon in the male, biliary concretions are most frequent in the female sex — probably in the proportion of one in the former, to four or five in the latter. 3. I. JJrscnii'TioN. — Biliary concretions vary remarkably as to form, size, number, and colour, as well as composition. — a. They may exist in any number — from one to a thousand, or even more. MoRGAGM, Walter, and ]?aillie, have found the latter number; and Soejmmerring, with many of the authors referred to at the end of the article, have observed from fifty to several hun- dreds, and even upwards, either in the gall-blad- der, or in the ramifications of the hepatic ducts. When thus numerous, they are usually very small — the sizi; of pin-heads, or but little larger — of a dark brown, green, or greenish yellow colour, sometimes almost filling the gall-bladder, and occasionally sliglitly agglutinatetl by thick bile. IMore frefjucnlly, however, a small num- ber, or two, tliree, or four are delected, and very ■often only one. When only two or three are found, they sometimes are jointed into each other, or have their opposite surfaces smooth or flat. In rare instances they seem divided by a septum. — h. •-When one, two, or three only exist, they are u^sually large, but they seldom reach the size of a hen's egg, or are much larger tlian a walnut. Dr. Saunders, however, has found one of the bulk and figure of the gall-bladder, which it filled. They are not infrequently as large as a pigeon's egg, or as a hazel nut; and are often found from that size downwards. — c. Thtir colour varies through every shade of black, green, brown, yellow, white, &c., that of the surface often dif- fering from the centres and certain of their layers. They are often beautifully mottled or marbled ; sometimes white and shining like spermaceti ; at other times dull, like wax ; occasionally lamel- lated ; often crystallised or striated, either with or without distinct centres, which are frequently different in colour and composition from the por- tions crystallised or collected around them. They are also more or less opaque, or slightly translu- cent.— (/. Theiryarm varies from a round, oval, or oblong — when they are solitary — to a cone, a cube, pentagon, polygon, &c., when more nu- merous. They are usually smooth, sometimes polished, particularly the surfaces that have been in contact with each other; more rarely rough or glabrous, and occasionally they appear as broken into fragments. — e. Their consistence also varies from what is barely sufficient to preserve their form, to that which does not yield to the pressure of the finger, and is divided by a knife witii difficulty. — /. Their specific gravity is much more frequently below, than above, that of water ; consequently, they are commonly found swim- ming on the surface of water when the evacu- ations are mixed with it. 4. Situation and Composition. — Biliary con- cretions have been found in every part of the biliary passages: — 1st, In the radicles of the hepatic ducts; 2d, In the hepatic duct, and its ramifications ; 3d, In the cystic duct ; 4lh, In the gall-bladder; and, 5th, In the common duct. They have been likewise found in every part of the intestines, in their passage out of the body ; and, in rare instances, in the stomach, whence they have been observed to have been ejected by vomiting. These concretions are often the result of obstruction to the course of the bile ; and are then generally found to consist of an admixture of inspissated bile with mu- cus. But more frecjuently they are a conse- quence of an alteration of this fluid from its healthy constitution, as respects either the pre- sence of elements foreign to it, or the super- abundance of those which are the least soluble, and which are precipitated during the retention or accumulation of bile in tlie ducts and gall- bladder ; the latter being most commonly the case. Of this description are the concretions formed of a crystallisable fatty matter described by Poui.letier de la Salle and Fgurcrov, under the name of adipocire, afterwards by Mar- CET, BosiocK, he, and named cholalerine by CiiiiVREUL. Some biliary caL-uli consist almost entirely of this substance. Others are formed of mucus and the thit-kened yellow matter, or the resin, of bile ; and many are composed of clioles- terine, the yellow matter, and the resin. Instances CONCRETIONS, BILIARY — Symptoms. 393 of concretions, different from these in composition, have been noticed by JMarcet, Orfila, and. Caventou ; but they are very rare. The greater part of these that consist of chole§terine have inspissated bile for nuclei, which, having passed along the hepatic ducts into the gall-bFadder, form tlie centres around which the cholesterine crystallises. All these are soluble in warm alcohol, which deposits the solution in brilliant crystallised plates when cold ; also in spirit of turpentine, and in the ajthers, or in an admixture of turpentine and aether, leaving more or less of a residuum, according to the quantity of mucous or animal matter they contain. They also form a soapy solution in the caustic alkalies, melt at a high temperature, are inflammable, and insoluble in water. 5. The formation of biliary concretions in the radicles of the bile-ducts has been disputed ; but I\I. Chuveilhier has given a very fine illustra- tion of this rare occurrence in his excellent pa- thological work. ^Vhen found in tiiis situation, they generally consist of very small grains, of variable size and form, and of a dark green co- lour, disseminated through the healthy structure of the liver, and are formed chiefly of inspissated bile. Biliary concretions are most commonly found in the gall-bladder, and are usually the consequence of the remora or accumulation of bile ; the absorption that takes place of its watery parts during its retention probably occasioning the precipitation or concretion of such of its more solid ingredients as it can no longer hold in so- lution or in suspension. Soemmerring, how- ever, supposes that they form very rapidly, with- out any absorption or inspissation of the retained secretion ; and this is probably more frequently the case, particularly in respect of those consist- ing chiefly of cholesterine, and when irritation of the internal surface of the gall-bladder produces a morbid secretion, which may combine with tlie less soluble ingredients of bile, or dispose them to crystallise, particularly when they are secreted in larger quantity than natural, owing to a defect of the assimilating functions, and consequent ac- cumulations of the elements of a morbid biliary secretion in the blood. 6, II. Symptoms. — Calculi in the gall-blad- der seldom give rise to any marked or definite symptom unless they are very large, obstruct the outlet of tiiis receptacle, or excite inflamma- tion of its mucous surface. Every experienced practitioner must have met with cases in which these concretions have been evacuated, and others also in which the gall-bladder has been found, after death, filled with them, without any ailment referrible to this organ having been complained of. The symptoms, therefore, usually stated to proceed from concretions in the gall-bladder should be viewed with limitations, inasmuch as they are not necessarily consequent upon their actual presence in it, and as they may proceed from some other pathological states. But, whilst we should view these symptoms with caution, we ought not to reject them ; for although concre- tions may form, and even pass into the alimentary canal, without creating much disturbance, or giving rise to any symptom distinctive of the ex- isting derangement, yet not infrequently their presence, particularly their passage from the gall- bladder into the intestines, occasions such a train of morbid phenomena, as will often enable the observing practitioner to form a correct diagnosis. 7. A. Of calculi in the gall-btadiler. — Pa-- tients with biliary calculi often complain of a sense of weight and oppression at the epigastrium, and right hypochondrium, with cardialgia and various . dyspeptic symptoms, especially after a qieal, with constipation or slight irregularity of the. bowels, an occasioi>al deficiency of bde in the evacuations, and sallow or yellowish tint of the countenance and skin. In some cases a dull pain in the epigastrium, with a tympanitic ful- ness, is felt (Strack); and in lean persons, a dis- tinct tumour below, the anterior, margin of the right ribs may occasionally be detected, particularly when signs of obstructed excretion of bile have previously existed, indicating its^accu'niulation in the gall-bladder. These may be all the syrnp- toms, and often so slight as' not. particularly to interest the patient; they may, even.vyhen most evident, continue a longer or shorter time, until, at last, the pain and uneasiness increase, — espe- cially when the patient turns, or lies upon the left side, uses exertion, rises quickly to the erect pos- ture, takes a full inspiration, or soon after a meal, — and extend to the right hypochondrium, to the back or right shoulder-blade, sometimes to the right breast, shoulder, arm, and side of the neck, and even throughout the abdomen, particularly to the right flank and hip. 8. B. The symptoms indicating the passage of coficretions into the intestines may not differ materially from the above, excepting in their se- verity and duration ; and they often have little relation to the size of the calculus. When the concretions still remain in the gall-bladder, they occasion either little or no disturbance, or such as has been novv' described, in a more or less con- tinued form. But when they are passing along the ducts, the symptoms are often very sudden in their invasion, of much greater intensity, of shorter duration, and generally recur in paroxysms. The pain is then frequently very acute, is attended by nausea, flatulence, or vomiting, by a bitter taste in the mouth, acid or bitter eructations, irregularity of bowels, colic, or distension of the abdomen, &c., and is followed by either a com- plete jaundice, or a slight yellow tint about the eyes or lips, the cheeks being clear. This discolour- ation commonly passes oft' soon after the paroxysms of suffiering, which often come on about two hours after a full meal, and it either recuis along with, or follows closely upon, them ; but it is not, nor, indeed, are any of the symptoms enumerated, constantly observed, as Coe, J. P. Frank, and others, have demonstrated, and as every expe- rienced practitioner must have remarked, even when large concretions have found their way into the bowels. The pulse is generally unaf- fected, and there is no fever, unless in the more violent seizures, or after their frequent recurrence or long duration ; when, in addition to these symptoms, loss of flesh and strength, a furred, loaded, dark yellowish tongue, great restlessness, anxiety, and tenderness at the epigastrium, and right hypochondrium, are observed. The inter- vals between the attacks are extremely variable. Sometimes the paroxyms are periodic ; and are evidently owing on these, as well as on other occasions, either to some change in the position of the concretions, or their passage into the intestines, 394 CONCRETIONS, BILIARY — Symptoms, or to inflammation produced by them in the gall- bladder and ducts. In many instances they are most ex'cruciating ; the patient is bent double, rolls about in great agony and anxiety, or presses upon the epigastrium, and complains of an acute or lacerating pain in the region of the ducts and duodenum, cither with leipothyma or syncope ; or with retching, distension of the abdomen, and severe colic. Females- — who are most sub- ject to these seizures — sometimes experience more suffeiing from them, than from parturition ; and even in them the pulse may not be afiected. The bowels are more fiequently constipated than relaxed, and the motions are often devoid of bile, although dian'hcea be present. The most acute attacks may terminate as suddenly as they com- menced, the patient soon recovering his strength and functions, unless more calculi remain to be passed. Tiiey are usually of short duration — not exceeding a few hours ; but they become longer after their repetition, sometimes at least continuing several days, with partial remissions. Occasionally they are preceded by a sensation of something unusual, or alive, in the region of the stomach, or in various parts of the abdomen ; and attended by dryness or slight pain of the throat ; by thirst ; inability to straighten the trunk, or to keep it erect ; by scanty, orange, or high-coloured urine, and slight strangury. 9. C. The ufj'ections (iiid lesions sometimes ca7ised hy biliary concretions attach to themselves m.uch interest. In some cases, violent convulsive mo- tions come on, from the pain and irritation they occasion, either with or without vertigo, headach, and cerebral congestion. Mental depression, obstinate dyspepsia, hypochondriasis, and melan- cholia ; also flatulent and colicky states of the bowels, constipation, and diarrhoea ; are not only frequent attendants upon, but also consequences of, biliary concretions. 'J'he less common dis- orde)"s they occasion are, dyspnoea, syncope, slow remittent states of fever, ha-morrhoids, suppres- sion of the catamenia, and apoplexy (15ue- SEEi). The effects produced by them upon the gall-bladder and ducts are often most important; inflammation, thickening of their coats, ulcer- ation, great dilatation of the ducts, adhesion of them, or of the gall-bladder, to the duodenum, or of the latter to the stomach, liver, or colon, or even to the ])arietes of the abdomen, witii ulceration, and passage of the calculus into any of these parts of the digestive canal, or through an ex- ternal opening at the rightepigastrium, having been observed by several eminent authoriiies. Coi.om- Bus states, that, upon the examination of the body of the celebrated Ignatius LoYOtA, abiliaiy cal- culus was found to have ulcerated its way through the gall-bladder, into the trunk of the vena jjorta. CiiEsici.DEN mentions a case in which two large calculi made their way, by inflammation and ul- ceration, tlirough the abdominal parietes ; and .similar instances are recorded by Hoffmann and CiiELL, in one of which about eighty small cal- culi passed out through a sinuous ulceration below tlie right ribs. 'I'oi.ir states a case in which a biliary concretion of the size of a pigeon's egg was discharged from an ulceration at the umbilicus ; and BuF.TiNrn saw thirty-eight calculi discharged in Xhc. same situation. S( iiuiuo men- tions an instance of two such concretions having been taken from an abscess in the anterior ab- dominal parietes, opened by Fabeicius j and cases have been recorded by Block, Hallee, WiNCKEL, Dixon, Caixoway, and Baffos, of tumours having formed below the cartilages of the right false ribs, followed by inflamma- tion, ulceration, and the discharge of biliary calculi of various sizes. Soemmeeeing states, that he has a preparation of a gall-bladder filled with concretions, and having an ulcer at its fun- dus, through which one of them had escaped. J. P. Feank found, in the body of a woman who died during the puerperal state, the gall-bladder ruptured, and containing calculi, to which he attributes the rupture ; and he met with another case in which the calculi had occasioned abscess and rupture of this viscus. Mr. Beayne has de- tailed an interesting case, in which adhesion of the gall-bladder to the duodenum had occurred, and in the centre of this adhesion an ulceration into the intestine had taken place, through which a very large calculus had passed, and been discharged by stool, a considerable period before the death of the patient ; and similar instances are alluded to by Dr. Saundees, as having been observed by Dr. CfiESTON and Mr. Cline. It is not impro- bable, that in some of the instances on record, in which biliary concretions have been voided by vomiting, adhesions of the gall-bladder to the stomach had taken place, and the concretion had made its way by ulceration at the place of ad- hesion into this viscus, from whence it had been ejected. A reference to the cases recorded by ScnuEiG, Oetesch, and Biondi, in which biliary concretions had been evacuated from the stonuich, will show that this is not an unreasonable inference. 10. Besides the usual appearances produced by inflammatory action in the coats of the gall- bladder, viz. adhesion to adjoining parts, thick- ening, ulceration, &c., they have been found almost or altogether destroyed by suppurative ulceration. In a case detailed by Dr. Scott, they were half an inch in thickness ; and Hal- lee observed them destroyed by suppuration and ulceration — the calculus that had caused the in- flammation lying in the midst of a disorganised and puriform matter. Obturation of the ducts has been often found on dissection, the gall- bladder being at the same time enormously dis- tended by accumulated bile. In many cases, the ducts have been found very much dilated after the passage of large calculi through them. Such cases have been recorded by Walteb, Dieteich, RicinEE, Thomas, Ceaigie, &c. Heisteu found the common duct dilated so as to admit his little finger. Morcacni states, that he has ob- served the same ducts so wide that its diameter was nearly two fingers' breadth; and Soemmee- eing has preserved, in his museum, several spe- cimens of great dilatation of this canal. Huysch and Blumenbacii have found biliary concretions in the substance of the liver; and others that had perfori'.ted the cystic duct, and caused ulcerations of both the liver and duodenum. Waltee ob- served the ramifications of the hepatic duct, throughout nearly all the liver, enormously dilated, and filled witii bile and some thousand small cal- culi ; and CiiuvEiLiiiEn and myself have met with very great distension of all the ramifications of this duct, with thickening of its coats, and con- cretions mixed with viscid bile throughout their canals. It is obvious that concretions, either ia CONCRETIONS, BILIARY — Causes, &c. 395 the hepatic ducts or in the gall-bladder, will sometimes give rise to very serious disease of the liver itselt. A torpid state of this viscus, so fre- quently observed in connection with their form- ation, is rather their cause than their efl'ect. Hence obstruction of the liver, and its consequences, particularly dropsy in some one of the shut cavi- ties, or the cellular tissue, are of more frequent occurrence than inflammation of this organ; but, nevertheless, both acute hepatitis and abscess of the liver have been sometimes met with, owing to biliary concretions. 11. D. When biliary concretions, particularly those of a large size, have passed into the intes- tinal canal , tliey often give rise to very severe and even dangerous symptoms. Cases have been referred to in the article C.'ecum, in which I had seen fatal results, consequent upon the pas- sage of biliary calculi into the appendix of the CKCum, they having produced inflammation, ul- ceration, or gangrene of this process, and, con- secutively, fatal peritonitis : and, in the case recorded by Civadieh, where a biliary concretion had escaped by an ulceration in the right groin, it is very probable that it had passed out through the caecum, by inducing inflammation and ulcer- ation of this part. The more common conse- quences, however, are, thirst, constipation of the bowels, colicky pains, sometimes tenderness on pressure referred to a particular part of the ab- domen, followed by tenesmus, alvine evacuations, and the passage of the calculus. When it is very large, the symptoms will be the same as enumerated with reference to Intestinal Concre- tions, or it will produce severe colic or ileus. Instances of fatal results, sometimes occurring very rapidly, from biliary calculi, have been ad- duced by several of the authors already named, as well as by Bianchi and Riciiter ; those of a slower progress have presented, with various organic lesions and dropsical eft'usions into the large cavities, — consequences) which have some- times not appeared until a remote period from the voiding of concretions. 12. III. Causes. — Biliary concretions occur much more frequently in the female than in the male sex, and during the decline of life, than at an early age. They are very rarely met with much before the prime of life, and still more rarely in children. Their generation is favoured by the phlegmatic, bilious, and melancholic tempera- ments ; by the violent or depressing passions — particularly anger, sadness, anxiety, &c. ; the use of spirits ; by sedentary occupations, rich and full living ; protracted sleep ; by sitting with the body bent forwards after meals (Hoffmann, Van Swieten, Coe) ; by chronic dyspepsia and costiveness ; and by imperfect assimilation and corpulency. Torpid or disordered function of the liver and gall-bladder ; inaction of the latter and of its ducts ; and a vitiated secretion of the bile itself; are obviously connected with the produc- tion of these concretions. Several writers have supposed that they arise from a putrescent state of the bile retained in the gall-bladder ; but, as GoLDwnz and SoEMMEnniNo have shown, this change, even granting it to occur, would rather prevent than favour their production. Various writers, as Leake, suppose that they are formed from the inspissation of the bile in the gall- bladder, from absorption of its watery parts : but this cannot be the only or even a principal cause, as we often find this secretion remarkably thick- ened from long retention in this receptacle, without such formations. The absorption can, therefore, only favour the occurrence of other changes in the bile, to which certain peculiarities in its composition strongly dispose it. The very small concretions which occur in the ramifications of the hepatic duct generally consist of inspis- sated bile and mucus ; and these, as they pass into the trunk of this duct, or are carried into the gall-bladder, may become the nuclei around which tlie superabundant cholesterine in the bile collected in the gall-bladder or in the ducts may ciystallise ; the increased quantity of this fatty matter in the bile being the chief pathological condition connected with their formation. As far as my own observation has extended, these concretions have occurred in persons whose assi- milating functions have been imperfect. That the liver performs an assimilating as well as a secreting office, has been shown by me in another work (see Appendix to Richekand's Fhi/iiologij, p. 580.) ; and when, either fiom torpid function of this organ, or from imperfect action of the other assimilating viscera, the chyle is not perfectly animalised, fatty matter abounds in the circu- lation, and is modified into cholesterine during its excretion by the liver — that portion of it which the watery parts of the bile cannot preserve in solution, crystallising into biliary concretions upon the occurrence of the circumstances favouring this change. The fact, that these concretions are most commonly met with in fat persons, in whom assimilation is defective, and at that period of life wheii it begins to flag, — imperfect assimilation causing the superabundance of fatty matter in the circulation, and its consequent deposition in the adipose tissue — seems a strong proof in favour of this opinion, which is further confirmed by the circumstance of my having observed the serum whitish or milky on two occasions on which blood was taken from persons with biliary calculi, — an appearance now demonstrated to arise from the superabundance of fatty matter in the serum (see Blood, § 104.). I need' not occupy my limits with the various speculations, or opinions, enter- tained by authors respecting the remote as well as pathological causes of bihary concretions, par- ticularly as the most of them have been found to be erroneous. Those who are curious respecting them, will find almost all of any consequence that has been adduced on the subject, in the references at the end of the article, and particu- larly in the works of Coe and Soejimerring, 13. IV. The Diagnosis and Prognosis can only be inferred from the entire history and con- tingent circumstances of the case ; as there are no symptoms, which, from their constant pre- sence, or relation to certain pathological con- ditions, will of themselves enable the practitioner to form a correct judgment as to the precise nature or result of the disease : and yet the ex- perienced and observing will very generally draw tolerably correct conclusions as to both, from reasoning on the procession, relation, or grouping, of the symptoms present: and, although the dis- ease is not frequently fatal, he will often have reason to be cautious in hazarding an opinion as to the ultimate or remote result ; especially as the same morbid condition of the system that 396 CONCRETIONS, BILIARY — Treatment. gives rise to these concretions, often occasions other dangerous maladies, even although the concretions themselves do not produce any fatal lesion, or even serious disorder. 14. V. Tkeatment. — The measures required in cases where the concretions are presumed to be in the gall-bladder, are somewhat different from those, which their passage along the ducts usually demands : — 1st. \Vhen the symptoms lead us to suspect the presence of concretions in the gall-bladder, the medicines recommended by SoEJiMERRiNG may be prescribed in various states of combmation. These consist of the carbonates of the fixed aliialies, the hydro-chlorate of am- monia, the acetate of potass, the spiritus rctheris nitrici, the liquor potassffi, Castile soap, the ex- tracts or decoctions of taraxacum, of herba sa- ponaria, the fumaria, &c. It is obvious that de- obstruent aperients, and the above medicines, will often have much influence in improving the biliary secretion, and promoting its discharge into the duodenum, particularly when the patient takes regular exercise in the open air, and saline mineral waters. The remedy of Duiiande, con- sisting of three parts •^f the spiritus ig, Litholngia, p. 968. — E. Staid, De Calcul. Gciicratioiie. Hake, 1C99. — Morgagni, De .Sed. et Caus. Morb. epist. i. art. 45—49. cp. il. art. 77. 7^ 413. — Bianchi, Historia Hepatis, t. i. p. 475 Ruysch, Dilucidatio Valvul. cap. iv. obs. '24, ; et Observ. Anatoin. obs. 87. fig. 69. — Glisson, Anatom. Hepatis, cap. 8 Vaier, De Calculi in Vcsic. Fellea General. 4to. Witteb. 1722. — Hoffmann, Medicina Ration. Syst. et Museum, S:c. p. 95. ct96. ; etEphem. Nat. Curios, dec. ii — Boerhaave, Praelcct. ad Institut. Path. \ 790 Van Stvit'tcn, Commentaria, &c. § 950. — Oricsch, Diarium, p. 283. — Cheselden, Anatomy, p. 166. — Snbnticr, De Variis Calcul. Biliar. Spec. &c. Monsp. 8vo. 1758 F. L. Hochstctter, De Cholelithis Humanis, 4to. Tubing. 1763. — Simson, Medical Essays and Observat. vol. i. ]>. 315. — Coe, Treatise on Biliary Concretions, &c. 8vo. Lond. 17u7. {An i7isiructive tvor!,-^. — Gmcliu, De Choleiithis Hum. Tubing. 1763. — Pftit, Mem. de I'Acad. Roy. de Cbirurg. t. i. — J. Maclurg, Experiments on Hum. Bile. Lond. 1772. — Stall, Rat. Med. in Nosol. Pract. Vindob. Vicn. 1777, vol. i. p. 213 J. G. Walter, Observat. Anatom. Berol. fol. 1775, p. 46. — M. E. Bloch, Meeiicin. Bemerkung. Svo. Berlin, 1774, p. 27. — Haller, Elem. Physiol, vol. vi. p. 564. {A valuable cullcction of cases); also, Opusculorum Patholog. t. iii. p. 324. — G. I'rochaska, Adnot. Aqadem. fasc. ii. sect. 1. Pragffi, \~iS3.—Dura7i(1c, Nouv. Mem. de I'Acad. de Dijon, 1782, p. 199. — //. F. jDrlius, De Cholelithis Observat. et Experim. Erl. 4to. 1782. — G. S. Dietrich, Observ. qtiaeilam de Calculis in Corp. Hum. inventis. Hala?, 17SS, Svo. — S. Golc/wix, Neue Versuche viber der Path, dcr Galle. Bamb. Svo. 17S9. — J. Leake, On Dis. cf the Viscera. Lond. 1792, p. 257 A. G. Bic/t/er, Medicin. und Chirurg. Bcmerk. Erst. B, Goet, Wi,—}S._Sand>fort, Mm, Anat. Acad, —INTESTINAL. 397 Lugd. Bat. Leida?, fol. Vl<^^.— W.Saunders, On the Liver, &c. 4th ed. p. 244. — Meckel, in Mem. de Berlin, vol. x. et vol. xi. p. 92. — A. M. Wadaberg, De Cholelithis per Absces- sum Ruptuin egredienlibus, &c. Upsal. 17S8, 4to Four- croy, in Annalcsde Chimie, &c. Paris, 1793, t. xvi. et xvii. — Soemmerring, DeConcrement. Biliar. Humani Corporis, Trajecti ad Mccn. Svo. 1795. — Baillie, Morbid Anatomy, 5th ed. p. 251. — Thenard, Mem. de la Soc. d'Arcucil, t. i. p. 64. — Merat, in Mem. de la Societ. Med. d'Eniulation, t. vi. p. 404. — Brunii, De Calculs Biliares, 4to. Paris, 1803. — //. Biondi, in Giornale di Med. vol. i. p. 382 Blumen- baeh, Medicin. Bibliothek, b. i. p. 121. — Heberden, m Transac. of Col. of Phys. Lond. vol. ii. p. 137. — Blagden, in Ibid. vol. iv. p. 181 — J. P. Frank, De Curand. Horn! Morbis, \c. 1. vi. De Retenf. p. iii. p. SlB. — Bie/l et Ca- det de Gdssicourt, in Diet, des Sciences Med. t. iii. p. 400. ^Crnigie, in Edin. Med. and Surg. Journ. No. 81 Scott in Ibid. No. 83. p. 297 Brai/ne, in Medico-Chir. Trans! vol. xii. p. 255. (Two interesting eases of large catcidi.) T/iomas, in Ibid. vol. vi. p. 98. — ll'inckel, in Hufeland's Journ. der Pr. Heilk. b. viii. ; and Dixon, Lond. Mod. Repos. April, 1824, p. 291. ; and Callaway, in Lancet^ vol. xii. p. 296. ; and Boflos, in Archives Gener. de Mcde- cine, t. xix. p. 459. {Cases of external tumour and fistulous opening, discharging, at the right epigasiriiim, biliary calculi with bile.) — Bricheteau, in Mem. de la Societe Med. d'EmuIation. t. ix. Paris, 1826, p. 194. Orfila Ann. de Chimie, t. Ixxxiv. p. 3i. — Caventou, Journ' Pharm. t. iii. p. 369. ; et De Chimie Medicale, t. iii. p. 572. — Cruveilhier, Anat. Path, du Corps Hum. 1. xii. Paris' CONCRETIONS — Intestinal. Sv.v. — Al- vine Concretions ; Alvine Calculi, Monro. Cal- culous Concretions, Andral. Intestinal Calculi; Enterulithus, Good. Classif. — I. Class, 1 1. Order (Author, in Preface.) 1. Defin. Substances accreted into solid masses in some part of the alimentary canal, chiefly owino- to imperfect action of the digestive functions and nature of the ingesta, and gluing rise to dangerous states of disease. 2. I. Calculous Concretions occasionally form in various parts of the human alimentary canal ; and, although generally the result of weak digestive functions, hence, a consequence of disease, they are, in some cases, the chief cause of extreme suffering and danger. They are most commonly found in some part of the intestines, particularly the caicuni and hr^e bowels ; but they are sometimes also found in the stomach, and there reach a very large size. BoNETUs, in his Sepnlcrelum-Anatomiciim, relates two cases, in each of which a stone as large as a lien's egg, and weighing four ounces, was found in the stomach ; and a third case, in which this vi.scus contained nine calculi weighing together three ounces and a half. 3. i. Origin and Composition. — Intestinal concretions are of several kinds, varying ex- tremely in their nature and origin. In very rare instances they have assumed the appear- ance of hezoars, as in the case recorded by iMM. Champion and Bracconnqt, who ascer- tained their nature by chemical analysis. In some cases, they consist chiefly of earthy deposits, in obscurely crystallised layers, around a distinct nucleus ; in others, they are formed principally from those parts of the ingesta which are inca- pable of change during the digestive processes. The concretions which Dr. Goon names intes- tinal calculi, and which consist chiefly of earthy deposits, are found in the human intestines, as- well as in the alimentary canal of the larger ruminating animals. They are generally formed' in concentric layers, and are often radiated, .sometimes very obscurely, from nuclei, which are either gall-stones, or some hard foreign body. They are more or less porous, either spheroidal CONCRETIONS, INTESTINAL — Number, Causes, &c. 398 or oblong, and vary from the size of a pea to that of a hen's egg ; and sometimes reaching a much larger size. 4. With respect to their origin, they may be divided into three varieties: — 1st. Those which have arisen from nuclei formed either ia the alimentary canal, or in the biliary apparatus, such as gall-stones, inspissated mucus, &c., around which certain saline and animal particles have attached themselves during their abode in the intestines. 2d. Those having nuclei consisting of foreicm bodies, such as fruit-stones, seeds, or the husks of seeds, fragments of bones, &c., around which the alimentary particles have collected and crystallised, so that without the presence of the nucleus the calculus would not have been formed: and, 3d. Tiiose which are formed entirely in the alimentary canal, and which are generally more or less homogeneous, and present no distinct nuclei. 5. The concretions of the first class have their nuclei or central part composed chiefly of cholesterine, the yellow colouring matter and the resin of tlie bile, surrounded by layers of a mixture of the phosphate of lime, and of the ammoniaco-magnesian phosphate, with animal matter. Haller supposed that the saline consti- tuents of these, and, indeed, all the other calculi, were furnished by the pancreatic juice ; and that the resinous parts were derived from the bile. That such are the chief, although not the only, sources of these constituents respectively, will not, I think, be disputed. 6. Those belonging to the second class are nearly similar as respects their outer layers ; their central parts varying according to the nature of the substance or substances forming their nuclei. This kind of intestinal calculi are not iafrefjuent in those parts of Scotland where tiie inhabitants live chiefly upon oaten bread ; the beard and fibres of the husks of the oat resisting digestion, and collecting together, so as to form concretions or nuclei, around which saline matter, wiih accessions of tiiese fibres, collect. The external layers of the calculus formed from this source are generally solid, compact, soft to the touch, and composed of saline matter ; in other instances, the outer layer has a velvety appear- ance, and consists of very fine fibres, closely united. Dr. Marcet found these concretions to consist of compact layers of fibrous substances and of phosphates. The following is his analysis: — In 100 parts, 25'20 were animal matter ; 3-90, resin; G'lG. ammoniaco-magnesian phosphate; 45'34, phosphate of lime ; and 20-30, vegetable fibres. The vegetable fibres were cemented to- gether by deposits of eartliy matter, and the ani- mal matter. 7. Some of those concretions very nearly ap- j)roacli liiose of the lliird class, and present no distinct nucleus, being meiely an agglutinated mass of vegetable fibres with inspissated mucus and earthy phosphates, sometimes containing other foreign ingredients or accidental ingesta. 8. Other concretions are formed in the intes- tines of persons wlio have taken large ((uantitifH of magnesia or ciialk, with tiie view of jjreserving an open state of the bowels, or of corre< ting acidiiy in the Rtomnch. The concretions, in these case*), consist of those eartliy bodies cemented togetlier by thick mucus. These concretions arc, in some instances, merely agglomerated masses ; in others, they are indistinctly disposed in layers ; they seldom have any proper nucleus, and belong rather to this third class, than to any of the fore- going. To this division are also to be referred those concretions which are formed of fa;cal mat- ters with earthy phosphates, and inspissated secre- tions sometimes hardened to the consistence of calculi. 9. Number, Size, Colour, &c. — There are seldom more than two concretions in the intes- tinal canal, but a greater number is occasionally found. BoNET met with nine in the stomach, Lanzoni with ten, and Bilguer with thirty in this viscus. The first Monro detected by the touch twelve concretions in the colon of a boy who was much emaciated ; and various authors make mention of as great, as well as of a lower, number. The colour of the smaller con- cretions nearly resembles that of iron ochre : the larger concretions are generally externally of a coffee colour, sometimes approaching to purple ; and occasionally they have a whitish surface. The different layers often present a slight difference in the deepness of shade. They are sometimes so hard as to admit of an imperfect polish. Some of the calculi have been found extremely large. The first Monro met with them five, six, seven, and even eight inches in circumference ; and the second Monro removed from tlie colon of a woman one which weighed four pounds. The larger calculi are generally more irregular in figure than the smaller. This may be owing to the additions made to their surface during the time they remain fixed within a certain portion of the canal. Where more than one are found, they often indent each other, or form, as it were, parts of one long concretion ; as in the instance of the very large one, which weighed upwards of twelve ounces, and consisted of three parts, recorded by Mr. Torbet (Edin. Sled, and Surg. Joiirn. vol. xxiv. p. 87.). 10. ii. The Causes of these concretions are, sedentary occupations, inactivity, and indolence ; a slow, weak, and torpid state of all the digestive functions ; deficient vital energy of the assimi- lating organs (§ 4, 5, 6.) ; a long, free, and injudi- cious use of magnesia, prepared chalk, and other calcareous earths, for the purpose of correcting acidity of the stomach (§ 7.), &c. ; portions of the husk and beard of the oat, from living upon oaten bread, &c.; swallowing incautiously fragments of bones, stones of fruit, or seeds ; and an habitual neglect of the stale of the bowels. 11. iii. Their Local Effects. — When these concretions reach a large size, they interrupt the functions of the intestinal canal, preventing the passage of the fjeces, and occasion dilatation of the bowel above the place in which they are lodged, followed by inflammation, ileus, &c. In more favourable cases, they expand the intestines sur- rounding them into a sac, which in process of time acquires considerable thickness. Dr. Monro, in his very able chapter on alvine calculi, describes three cases in which the ca;cum was extended into the form of a sac, the muscular fibres of which were hypertrophied, and the mucous membrane thickened and corrugated. This sac communicated with the commencement of the colon by a circular opening, which, in one case, was nearly an inch, in another scarcely CONCRETIONS, INTESTINAL — Symptoms — Treatment. above a quarter of an inch, in diameter. A similar sacculated extension has been likewise noticed by this pathologist at the extremity of the ilium, near the caecum. 12. Owing to the irritation occasioned by these concretions, the intestine is often found con- stricted around and immediately below them, as demonstrated by Schenk and jMonuo. Adhesion of the concretions to the inner coat of the viscus is a much rarer occurrence. Cases, however, have been observed by Horstius and the first INIoNno, where such adhesions existed. Ulcer- ation of the parts in which they are lodged, owing to the irritation occasioned by them, is amongst the most common of the local efl'ects to vviiich they give rise. In some cases, the inflam- mation induced by them in the internal surface of the bowel extends to the external tunics, until it reaches the peritoneal surface, where coagulable lymph is thrown out, and the convolutions in its vicinity are agglutinated into one mass, or adhe- sions to adjoining parts take place. 13. iv. The Symptoms which alvine concre- tions occasion vary extremely, according to their nature, and the size they have attained. Some- times it seems wonderful, considering their great bulk, that the intestinal canal is not completely obstructed by them. In some cases they have remained for years, with evident symptoms of their existence. In more fortunate instances, they have been ejected with the contents of the stomacli after severe retching and vomiting ; or have passed by stool, after severe dysenteric symptoms and tenesmus. In almost every instance, the digestive powers are very much impaired, and the patient becomes, after a time, greatly debilitated and emaciated. The pulse, at first, is but little affected ; but the patient complains much of pain and tension in different parts of the intestines, and is subject to occasional attacks of nausea, vomiting, tormina, or purging. The pain in the bowels is usually referred to one part, and is much more severe at one time than at another, particularly after taking acids, or food difficult of digestion. Constipation of several days' duration is often complained of, and yet the patient has a constant inclination to go to stool : at other times, or in other cases, there are fre- quent watery and scanty evacuations of a viscid ropy mucus or blood, which sometimes give a short relief. 14. When the concretion is of a large size, and the patient is somewhat emaciated, a very hard, painful, globular tumour may be felt in the abdomen, most frequently in the course of the large bowels, upon placing him on his back, and relaxing the abdominal muscles. It can seldom be made to change its place within the intestine, but often appears to do so in conse- quence of the change of place of the portion of the intestine containing it, particularly when it is lodged in the small intestines, or in the arch of the colon. Some patients are under the neces- sity of abstaining from solid food, and others reject the greater part of their food. When the concretion has existed for some time, the bowels are generally so much obstructed that laxatives or clysters are necessary to procure a passage. Dr. Moxno states, that when it changes its place, and passes down into the sigmoid flexure of the colon, or into the rectum, it creates excru- 399 ciating torture in the region of the pelvis and fundament, and the bowels become obstinately constipated, and much distended, from the passage being interrupted. 15. When alvine concretions lodge low in the rectum, they occasion much pain when the patient is sitting, and upon going to stool. When this is the case, an examination per aunm is requisite, which will lead to their extraction by the forceps. In a case in which the second MoNno was consulted by IMr. Goonsin, the patient passed, in the course of two or three weeks, nine concre- tions in this way, some of which were as large as a hen's egg. This patient had laboured for many weeks under very acute pain in the region of the stomach. 16. When tlie concretions are small, they frec|uently pass away with the fajcal matter, without occasioning any evident disturbance; the patients, generally, having complained of nothing further than long pre-existing dyspepsia and constifjation — the chief causes of their forma- tion. In other cases, especially when tliey reach a large size, most distressing and urgent symptoms are produced by them ; commencing with those already enumerated (§ 13, 14.), and terminat- ing with violent colicky pains, obstinate con- stipation, pain at the top of the sacrum and loins, or in the hypogastrium, sickness, retchings, and, at last, complete ileus, or all the pheno- mena of acute enteritis, or peritonitis. Even the smallest concretions occasionally give rise to fatal consequences. Two cases have occurred to me, wherein the most acute peritonitis, followed by the effusion of coagulable lymph, with adhe- sions, and terminating in sphacelus of the vermi- cular appendix of the cascum, was occasioned by these concretions having passed into this part. A similar case is recorded by Kuysch (Muesum, 142.). 17. v. Treatment. — We are often vvithout any satisfactory proof afforded us, during the life of the patient, of the existence of these concretions in the intestinal canal, the symptoms they occa- sion being the same with those proceeding from various other causes. Their existence is, there- fore, often merely a matter of conjecture, to which the deficient energy of the digestive action, the means resorted to by the patient to palliate dyspeptic symptoms, and his accustomed diet, frequently lead ; and we seldom can form any correct diagnosis, unless they are so large as to occasion tumours in the course of the bowels, or are lodged low in the rectum. When their exist- ence is proved by their discharge, we may consider the mischief, in a great measure, if not entirely removed ; unless, indeed, the symptoms continue, when we may infer one of two causes, namely, the presence of more concretions, or the existence of inflammatory action induced by them in a por- tion of the intestines, or of intus-susception. 18. When the symptoms seem to pioceed from the injudicious use of calcareous or mag- nesian absorbents, these must be entirely avoided. Aperients of a different nature should be em- ployed, particularly the supersulphale of potash, or the sulphate of soda or of magnesia, with the addition of dilute sulphuric acid. In order to relieve the more urgent symptoms, copious injec- tions of an oleaginous, emollient, and purgative kind, should be thrown up. And, in order that 400 CONCRETIONS, INTESTINAL — Origin of Fatty. these may more fully answer the intention, they ought to be administered whilst the patient rests upon his knees and elbows, with the pelvis ele- vated above the shoulders. If vomiting be pre- sent, care should be taken not to increase this symptom by the administration of medicines by the mouth. For, by frequently exciting the inverted action of the stomach, this action will extend to the alimentary canal, and terminate in fatal ileus. It is preferable to solicit the action of the bowels by emollient, anodyne, and ape- rient enemata, and by frictions with oleaginous substances, or fomentations on the abdomen. When we suspect the concretion is owing to the nature of the food, this cause must be avoided. When the concretions are seated low in the rec- tum, their extraction by the forceps must be tried. Those arising from the use of oat-bread being, ge- nerally, partly composed of the earthy phosphates ; and, considering the solubility of these salts, INlr. ToREET and Dr. Duncan conceive that an im- pression might be made on them by a course of mineral acids taken by the mouth, or injected by the anus. 19. Tlie second Wonro recommends, in cases where the concretion is evident to the touch, forming a distinct and fixed tumour in the bowels, and where the symptoms are urgent, all other means liaving failed, to attempt its extraction by an incision through the abdominal parietes into the intestine ; and in this recommendation Mr. ToREET and Dr. Duncan agree. But, before resorting to this last means. Dr. INIonuo advises the following very judicious plan, which I ex- tract from the very excellent materials which his son has laid before the profession: — " 1st, Let the patient (a female) take every day a quarter of an ounce (1) of Castile soap, in pills, and of castor oil. 2d, Once or twice a week, let her take a purgative composed of sal glauberi, 2j., sugar half an ounce, and the same of salad oil, and whey tbss., orlbj. 3d. Three times a week let her get a clyster of a quart of water, in which an ounce of linseed and half an ounce of Castile soap have been infused for two hours. 4th, Let her foment the belly, and take the above clyster, when she suffers much pain. Let her diet consist of loaf-bread, milk, whey, broth, soft eggs, butter, a bit of light-dressed meat ; and if slie take porridge, let her melt a good deal of butter in it." (p. 50.) Such was the advice of a most ex- perienced physician in this description of disease ; and it proved successful in the case for which it was directed. (See also the Treatment of Colic and li.EUs, and of Constipation.) 20. IL Fatty and IIkterogeneous Concre- TiONS. — A. Concrete substances, differing very materially from those already described, are some- times formed in the alimentary canal, particularly in the large intestines. These arc usually tlerived from two principal sources ; viz., a morbid stale of the secretions poured into the intestinal tube, or secreted from their internal surface ; and altera- tions of the usual state of the fa.'cal matters, during their retention in the ca;cum and large bowels. 'J'o lliese, a third may be added, — the ingestion of substances into the stomach, which are incapable of undergoing any material change during tiieir passag(! through the canal, excepting their agglu- tination into (inn balls. 21. li. Vvncrcl'w)is oi an oletiginoHs nature, or varying from an oleaginous to an adipocirovs or even waxy character, are sometimes voided by persons who sufl'er from a torjiid stale of the bowels, and deficient digestive function. These concretions are often mistaken for gall-stones, but are readily distinguished from them by the following characters : — They are generally of a globular form, varying in size from that of a small pea to the bulk of a large grape, are of a cream- colour, slightly translucent, and of sufficient con- sistence to preserve their form and be cut with a knife, like soft wax. 22. These unctuous concretions cannot in general be traced to any oleaginous material in- troduced into the stomach ; yet there is some- times evidence furnished of their origin in oleagi- nous or fatty substances which have not under- gone the requisite changes in the prima via, but have been merely slightly changed by the acid existing in the stomach, and by the secretions poured into the alimentary canal, so as to assume the appearances now described. It is possible, however, that they may be occasionally formed by intestinal secretion, or by a chemical change effected on parts of the recrement of the food, after having passed into tiie cacum and colon. Fat, either in the concrete form now described, or in a state of fluidity and purity resembling oil, has been occasionally, although rarely, voided from the bowels, independently of having been taken by the mouth; although more frequently proceeding from the latter source ; as instances observed in the course of practice at the institu- tion for children have proved. Cases of this description have been recorded by Dr. W. Scott (Ed, Med. Comment, vol. iv. p. 334.). Dr. iJABiNGTON and Dr. Elliotson (Philos. Trans. 1813, art. xxi.), Dr. Kuntzmanz, of Berlin (Journ. der Pract.Heilkunde, July, 1821), Diet- rick, and several others. 23. Sir Everard Home endeavours toaccount for the production of these adipocirous and fatty concretions, by contending that it is the office of the large intestines, particularly of the colon, to convert a considerable portion of the matters poured into them into fat, by combining them with the bile ; and the fat thus formed in the large intestines is taken up and conveyed into the circulation, to be deposited in various parts of the body, to supply tlie wants of the economy. But the production of fat in the intestines seems to be only the result of a diseased action, inasmuch as it is voided from ihem, in any of its states, only during disease — during visceral complaints, and colicky or dysenteric affections — and is never observed to be passed from, nor is found within, these viscera, when they are in their healthy con- dition. It appears from the history of the cases on record, as well as from those recently ob- serveil by Dr. Ei.i.ioison and Mr. Li.oyd, to be especially connected with disease of the assimi- lating viscera, and consequently with imperfect assimilation ; a jiortion of the chyle, instead of being ciianged to healthy blood, assuming an oleaginous state, as not infrequently observed in the serum. The fatty matter tiius accumulated in the blood, will, in several states of disease, be eliminated from it by excreting organs — particu- larly by the mucous surfa(!e of the bowels, and by tiie liver and kidneys — instead of being depo- sited in the ttdiposc tissue for ultenor purposes, ami CONGESTION OF BLOOD — Its Nature. &c. 401 thereby pivportionately disor- will assume eitlier a concrete or fluid form, owing to modifications of its state as orlginully secreted, or to the action of other matters upon it during its retention in the bowels or urinary bladder. 24. A singular case has been recorded by Dr. Kennedv (Medico-Chirurgical Jouriuil fur Sept. 1017.), of an intestinal concretion, which was found, upon its analysis by Dr. Ure, to be similar in its composition to ambergrise. 25. C. Intestinal concretions have been found to consist entirely of those matters which have been swallowed fiom either a depraved appetite, or bad habit ; thus, concretions causing violent symptoms, have been produced by the habit of chewing the ends of threads used in sew- ing, and which have formed a firm felt with the mucus of the intestines and some faecal matters. I was lately consulted in the case of a young lady who had been long under treatment for obscure abdominal disease, respecting the na- ture of which no two of the several eminent practitioners who had been in attendance agreed. The existence of accumulated matters in the caecum and colon seemed evident to me, upon examination, and from the character of the consti- tutional and other symptoms. Purgatives and injections weie long persisted in ; at last several concretions — (about twelve) — from the size of a filbert, to that of a walnut, were evacuated. Upon examination, they presented a substance resembling pasteboard, with a fajcal smell, of a brown colour, and containing earthy parti- cles. On being broken down and macerated, they were found to consist chiefly of coarse paper reduced to a pulpy state, but containing fragments not materially altered. The portions of pulpy paper were agglutinated with mucus, portions of faeces, and a little phosphate of lime. After some time, the patient confessed that she had occasionally been in the habit, about the age of thirteen and fourteen, of chewing, and some- times swallowing, portions of the grey paper, with which she curled her hair. After the evacuation of these concretions, all the symptoms disap- peared, and she rapidly recovered. A few years ago, I attended, with Mr. Annesley, a similar case to the foregoing, but in a younger lady. She recovered perfectly by the use of purgatives and clysters. BiBLiOG. ANn Refer. — A. v. Hallei; Elementa' Phy- siologise Corporis Humani, t. vii. p. 176. — Jf'all/ier, l3e Concremcntis terrestribus in variis Partibus Corporis Humani repertis, fol. 1775. — S. Fitxgrraht, in Kdiii. Med. Comment, vol. viii. p. 329 Sir E. Home, m Philos. Trans. 1813, art. "il. — Marcet, On the Chemical His- tory and Medical Treatment of Calculous Disorders, 1817. — M. Lousier, Memoire sur les Concretions qui seforment dans le Cjorps de 1' Homme. Paris, 1825 J. Porta et Julia-Fonlenelle, in Archives Gen. de Medecine, t. xii. p. 433. — P. Denis, in Ibid. t. xvii. p. 111. — Torbet and Duncan, in Edin. Med. and Surg. Journ. vol. xxiv. p. 84. and 90. — G. Aiidral, Anatomic Pathologique, &c. t. ii. Paris, 1829— y/. Monro, S;c., The Morbid .Anatomy of the Gullet, Stomach, and Intestines, 2d edit. Edin. 1830. (Contains the most complete account of Intestinal Calculi with which I am acquainted.) CONGESTION OF BLOOD. Classie. Ge- nehal Pathology : and I. Class, IV. Or- der (Author, in Preface). 1. Defin. Bejicient vital tone or power, chiejiii of the capiUary vessels and veins, occasioning accu- viulation of blood in them, and a languid or more or less retarded circulation, tiie funclivns of the Vol. I. organ or part being dered, 2. I. Nature and Relations of Congestion. — It has been stated in other places (see arts. Blood, Disease,) that moibid states of the vas- cular system, and of tlie fluid circulating through it, must be imputed, in a large proportion of cases, to changes induced primarily in the organic nervous system, which is, anatomically, most intimately connected, not only with the circulating system, but also with the organs essentially vital ; this connection subsisting by ramifications pro- ceeding to them both directly and obviously either from the great central ganglion, or from appro- priate subordinate ganglia, as well as indirectly and less apparently through the medium of the blood-vessels, on which the organic uervous system is everywhere profusely distributed, the one accompanying the other throughout the frame. Thus intimately interwoven, they expe- rience reciprocative changes, and generate a com- mon influence. The vital organs, as well as their subordinate parts, in the more perfect ani- mals, being supplied by both these systems, — the most rudimental type and essential requisites of organisation, — and actuated by their common influence, are thereby enabled to perform their destined functions ; the superadded or peculiar organisation of each organ being the instrument, which, thus actuated, performs specific offices in the economy. 3. It results from this, — 1st, That we are not justified in considering changes in the states of vascular action, or in the relation subsisting be- tween the vessels and the quantity or quality of the fluids circulating in them, apart from the condition of the organic nervous system, which is thus intimately connected, by structure and function, both with them and with all vital organs ; 2d, That changes in the vascular system are very often induced by impressions made primarily upon the organic nervous system ; whilst, on the other hand, a morbid state of the former, particularly in respect of its circulating contents, will most seriously affect the latter ; and 3d, That upon tracing the procession of mor- bid phenomena, the first impression made by the exciting cause, and earliest change from the healthy state, will be found in the functions of this .system of nerves, in perhaps the larger pro- portion of cases ; vascular action, &c., and the secreting and assimilating functions being very soon afterwards disordered. The truth of these propositions will become more manifest after having surveyed the causes which induce con- gestion, the phenomena which accompany it either as coincidences or consequences, and the results to which it leads ; and we shall be more fully convinced of the propriety of viewing it as very much more frequently a link merely in the chain of morbid action, than as a primary or even an early change. 4. Congestion has been divided by many mo- dern pathologists into active and passive, they un- derstanding by the former that state of vascular action which coincides with active determination of blood, according to the meaning I have attached to itin another article. (See Blood, § 25.) It may be defined to be a vital excitement with somewhat of expansion of the vessels, and the cir- culatioa of a larger quantity of blood through 402 CONGESTION OF BLOOD— Its Causes, &c. them, without any obvious tendency to form new productions, or to occasion disorganisation, unless inflammation, or some other morbid condition, supervene, which is very often the case. Prom this state — active congestion (see Blood, § 26.) — in which the vital action of the vessels is above their healthy standard, there is every intermediate grade, lapsing insensibly into extreme passive congestion, in which there is deficient or depressed vital power, tlie current of the circulation through the weakened vessels being remarkably languid and retarded. In this state, the venous and arte- rial capillaries, having lost the principal part of their tone or vital tension, re-act imperfectly upon the mass of blood injected into them by the heart's action, and become distended and congested. This state, tlien, existing in any degree, down to that wliicli is barely compatible with the continuance of the life of the part, constitutes congestion ; it being thus considered as a state of sub-action, and not of super-action, as determination of blood undoubt- edly is. 5. i. In respect of the modes of accession by which congestion presents itself, much diversity exists. It may occur suddenly, after intense causes ; slowly, after slight influences or other disease; and almost insensibly, after active deter- minations of blood and inflammatory action. It may be almost the primary lesion, the impression made by the exciting cause upon the organic nerves being the only previous change ; or it may be one of the most remote, and only ante- cedent of, or immediately consequent upon, dis- solution. It is generally the result of directly or indirectly depressing causes ; and assumes every grade according to the intensity of their operation relatively to the organic nervous or vital energies of the frame on which they act. 6. ii. The textures most liable to undergo con- gestion are such as, owing to their conformation, particularly the laxity of their vital and physical cohesion, admit of the distension of their vessels. Cellular parts, and organs in which the cellular structure predominates, as the parenchyma of various internal organs, particularly the brain, the lungs, the liver, spleen, and kidneys ; the mucous membranes, especially those of the bronchi and digestive canal, and the uterus and ovaria ; are most liable to experience this state of tlieir blood- vessels. Besides these, however, other and less yielding structures, as the serous and fibrous membranes, tlie skin, the muscles, &c., may be congested to a certain extent, particularly after exhaustion of the vital energies of the frame, and diminution of the vital cohesion of these structures, eillicr by causes which depress the organic ner- vous power, or by noxious agents contaminating the blood, or by over excitement of the vascular system of the congested part, or of the whole frame. In one or other of these three ways, con- gestion supervenes when it is observed at the commencement in the course, or towards the close of febrile and constitutional maladies ; the same causes, and operating In a similar manner, also occasioning congestion of tliose viscera which are most liable to it by conformation. 7. ill. 2'lie causes of congestion are, therefore, 1st, Those which act by primarily depressing the organic nervous influence ; such as advanced age ; tiie continued or prolonged Impression of cold, mental anxiety, and all the depressing passions and moral emotions ; prolonged sleep, mental and physical inactivity; miasm.al, contagious, or infectious emanations ; various vegetable, animal, and gaseous poisons ; and the rapid loss of the natural electrical tension of the frame: 2d, Those which mechanically impede the return or circu- lation of the blood itself, or which change its quantity and quality, either locally or generally ; as excessive heat ; general plethora, produced either by too full living, or by the suppression of the natural or accustomed discharges, interrupted circulation through the heart, the lungs, liver, &c.; a long retained posture by debilitated per- sons ; the use of unnecessary ligatures and tight lacing; Improper and unwholesome food; con- tamination of the blood by the absorption or in- troduction into it of noxious mineral, vegetable, and animal substances, or gaseous fluids ; and changes taking place in its constitution, from the interrupted secretion and elimination of hurtful matters from it (see Blood, § 1 15. etseq.) — these latter causes aflfecting the vital manifestation of the vessels and nervous systems ; 3d, Those causes which exhaust the Irritability or vital tone of the vessels, by previously exciting them above their natural state of action ; as local determinations of blood, general vascular excitement ; fatigue from violent or continued exertion; pre-existing fever, inflammation, or other diseases. Thus it will be seen that congestion arises from changes induced (a) in the state of organic nervous power, and externally to the vessels ; (b) in the blood itself, and acting internally on the vessels and struc- tures ; (c) in the coats of the vessels them- selves ; and (d) in two or more of these simul- taneously. 8. iv. The symptoms indicating the existence of congestion are sometimes very apparent, at other times very obscure. When it is present in a marked degree and in vital organs, the disturb- ance of function is usually so great as to indi- cate Its existence; but even then the kind of disturbance may be very nearly the same as pro- ceeds from morbid states, which we shall here- after find congestion not infrequently occasions, viz. sanguineous or serous effusion ; as in the cases of intense congestion of the encephalon. Upon the whole, however, it gives rise to partial loss, or entire abolition, of tlie functions of the affected part. Thus, congestion of the brain, when moderate, will occasion a slight state of lethargy, or vertigo, &c.; where more severe, epilepsy, coma, or apoplexy. Congestion of the liver is attended by more or less complete arrest of tlie biliary secretion, with tumefaction of the organ, &c. ; and congestion of the bronchial sur- face and lungs, with dyspnoea, asthma, &c. Fe- brile plienomena seldom accompany congestion, unless it arise in the course, or towards the close, of febrile diseases, or be excited by infectious or miasmal emanations, or is about to pass into aa Inflammatory or hsemorrhagic state. When it occurs in large secreting viscera or surfaces, the function of secretion Is either impeded, vitiated, or altogether suspended ; a return or increase of the secreting action either restoring the healthy state of circulation, or converting it into active determination, or even into inflammation. When congestion affects several parts, or two or more important viscera, as on the invasion or towards the close of malignant fevers, or when the circu- CONGESTION OF BLOOD — Appearances, &c. 403 liting fluid and soft solids become contaminated, the functions of the economy are very gravely d.sturbed, and some of them almost annihilated : in such cases, the morbid impression made by the existing causes upon the organic nervous system, disorders the various functions it actuates, and even puts a stop to some of them ; the derange- ment of function being often a coeval and co- ordinate effect with the congestion. Hence the arrest or diminution of function becomes one of the most common indications of the extent of congestion, even although it may not be the actual consequence of this state of the vessels. 9. V. The appearances presented by congested parts after death vary extremely with their struc- ture, and the degree and duration of the congestion. In addition to more or less engorgement of the small vessels and veins, there are generally found a darker colour of the contained fluid than in the natural state, considerable tumefaction, and di- minished cohesion of the aflected structure, and alteration of its colour. The change of colour may be of various grades of deepness, to a brown- ish or greenish black, as frequently observed in the liver and spleen ; and the loss of vital cohe- sion may be very remarkable, as in the same vis- cera, tumefaction being then very considerable. These appearances are often accompanied with effusion of a serous, aqueous, or sanguineous fluid from the congested surfaces ; and sometimes with ecchymoses of a deep colour in or beneath the mucous tissues, and occasionally in serous mem- branes and parenchymatous parts. 10. vi. The general conseqtiences and terminations of congestion are deserving strict attention, as to this state are to be imputed several of those more grave and dangerous changes presented to us in the advanced stages of numerous diseases. 1st, Congestion termmates in the restoration of the healthy circulation. This is most frequently the case in respect of secreting parts, as the mucous and villous surfaces and glandular organs ; the return of their secreting functions aiding most ma- terially the restorative process, by diminishing the fulness of the vessels, and soliciting an accelerated circulation through them. Hence, although a restoration of the circulation, to some extent at least, is often antecedent of the return of the secreting function, yet we frequently succeed in restoring the former by exciting the latter; the stimulus thus imparted extending itself to the weakened and congested vessels. Parts which have once suffered congestion in a very marked degree, very often retain a disposition to expe- rience it again upon exposure to its causes; this disposition, however, diminishing with the lapse of time, if judicious means of strengthening the organ be adopted. 2d, Congestion may pass into active determination, or into inlianimation of various grades of intensity. This may arise from ' vicinity of the congested organ, or in the areolae of its cellular tissue. We often observe this ter- mination in the diflPerent internal viscera, and cavities in which they are situated. It evidently depends jpon the rarefaction of structure occa- sioned by distension of the parietes, and loss of tone of the congested vessels, most probably as- sisted by weakened vital cohesion of the tissues, and diminished crasis of the blood ; these con- ditions either accompanying or following the congested state, which very frequently is par- tially, or altogether removed by the consequent effusion. 4th, Hfemorrhage may supervene, either from the surface, or into the substance of the congested organ or part ; owing either to a con- stitutional disposition to haemorrhage, arising from original conformation, the vessels readily yielding from distension or accidental impulse ; or to the existence in a more or less intense de- gree of the same changes which produce aqueous effusion, particularly weakened cohesion of the tissues, and, consequently, of the delicate canals conveying the blood through them, and a morbid state of the blood itself. 5th, Congestion of the minute capillary canals, either frequently re- curring, or continuing long, seems to give rise to various morbid or adventitious structures, par- ticularly when it takes place in persons of a scrofulous diathesis, or affected by any other constitutional taint. In such cases there is a marked indisposition, both of the part to return to a healthy state, and of the adventitious struc- ture to be absorbed. 6th, Retardation of the cir- culation in congested vessels may be so complete as to occasion even loss of vitality and gangrene of the part. We observe this in the congestion arising from extreme cold, from the exhaustioa consequent on intense excitement. Sec. 11. vii. Congestion, and its consequences in re- spect of particular structures, are of great import- ance, and are therefore considered among the principal changes to which vital organs are sub- ject. Although the local relations of congestion fall under their appropriate heads, it may be remarked, in general terms, that congestion may occur in any structure or organ during life, with- out evincing upon dissection unequivocal proofs of having ever existed ; and that it may appa- rently continue till dissolution, without being very manifest upon examination afterwards. Such is especially the case in respect of congestion of mucous and serous surfaces, the vessels of which empty themselves soon after death, when the pro- pelling power no longer acts upon them and dis- tends their relaxed parietes, in consequence either of the passage of more or less of their contents into the adjoining veins, or of the escape, through the extreme canals and pores of these structures, of the more aqueous or serous parts of the blood they contained, or of both these changes con- changes induced in the state of the blood itself joined. From this it will be manifest that many relatively to that of the vessels; or from the re-action of the vessels upon the distending fluid, and the augmented impulse following the tempo- rary retardation of the circulating current ; or from the use of irritating and inappropriate stimu- lants in order to remove the congestion ; or from cases of recent or not very intense congestion, wherein we have reason to infer that the small vessels have not altogether lost their vital tone, particularly of membranous parts, will present upon dissection chiefly fulness of the veins, pro- ceeding from these parts, with the eff"usion of i nordinate excitation of the secreting functions, i more or less of a serous, aqueous, or sanguineous when we endeavour in this way to remove opple- i Huid in their vicinity. On the other hand, con- tion of the vessels. 3d, Congestion frequently , gestion of internal organs may not have been de- occasions serous or aqueous effusions in the ' tected at all during life, or it may have occurred D d 2 404 CONGESTION OF BLOOD— Treatment. but shortly before, or at the time of death, and yet be very evident upon inspection afterwards. This is not infrequently observed in respect of parenchymatous organs and mucous and villous surfaces. When congestion, however, occurs in the large viscera, as the brain, lungs, liver, and spleen, and continues up to the time of dissolu- tion, it is generally very manifest in them upon dissection. In many diseases, particularly those in which the blood becomes affected previously to, or continues fluid after, death, and in those which terminate by asphyxy, congestion of de- pending parts is a very common post mortem occurrence, and one which should be carefully distinguished from the congestion that has existed during life. 12. II. Of the Treatment of Congestions. — i. It is necessary always to keep in view the fact, that congestion is a consecutive lesion, arising generally from causes which depress the vital manifestation of the organic system of nerves supplying the blood-vessels ; and that, although it is very frequently associated with general ple- thora, and necessarily implies the existence of local plethora (see Blood, § 23.), yet, on ac- count of this depression of nervous power, general depletion, unless to a small amount, is seldom of much service in the treatment of congestion, un- less it be conjoined with the use of stimulants, derivatives, and excitants of the secreting func- tions.— a. But local depletions, particularly when directed in such a manner as to operate some degree of revulsion from the congested part, sometimes carried to a considerable extent, or repeated as circumstances require, are among the most requisite means of cure. — b. When the powers of life are much reduced, even local de- pletions should be employed with caution, and never without having recourse, at the same time, or previously, to suitable excitants and external derivatives. Of these classes of remedies, the most preferable are such as tend to equalise the circulation throughout the viscera, and determine it to the periphery of the frame. Diaphoretics ; the imrw or vapour bath; warm poultices and fomentations ; rubefacient embrocations, epithems or poultices, especially those with Cayenne pepper, mustard, horseradish, &c. ; blisters, and warm and rubefacient pedJ/((r(a; are calculated to accom- plish these purposes. — c. Much advantage will also accrue from attempting to restore by emetics, purgatives, or other remedies, the secretions of the mucous surfaces, and the functions of the congested organ; as the restoration of these functions, which are generally impeded or alto- gether arrested, will unload the vessels, and acce- lerate the retarded circulation in them. But it should be kept in mind, that the medicines that operate in tiiis manner are generally local and specific excitants ; and hence that they, as well as the stimulants usually given internally, should be exhibited with caution, and preferably at the same time that local depletion, with derivation to the surface of the body and lower extremities, are being employed. Without attention to these pre- cautions, we may convert, particularly in plethoric persons, simple congestion into active determin- ation of blood, or into inflammation. — d. 'J'lie dij- Jusible stimulants that are generally most service- able in removing congestions are, camphor, the p.cparalions of ammonia, the a;lhers, weak infu- sions of arnica or serpentaria, warm diluents with saline medicines or the nitro-hydrochloric acids, the liquor ammoniaj acetatis, small doses of ipe- cacuanha, with camphor and opium, &c., and several of the gum-resins and essential oils. — e. In many cases of congestion of vital organs, it will be requisite, in addition to the foregoing measures, to direct internal revulsaiit agents to remote viscera. Thus, in congestion of the head or lungs, we shall derive advantage from exciting the action of the lower bowels by irritating ca- thartics and injections; and, having prescribed depletions and external derivation, from a judicious employment of active diuretics. — /. In all cases, it will be necessary to promote the natui-al secre- tions and excretions ; inasmuch as we thereby keep up a regular distribution of the circulating fluids, and eliminate from them such hurtful sub- stances as might irritate the vessels and induce consecutive disease, if they were allowed to accu- mulate.— g. In many instances, benefit will accrue from the affusion or aspersion of cold or tepid water over tl'.e part enclosing the congested or- gan, especially when the state of the pulse, and the seat of congestion, lead us to dread the super- vention of haemorihage, as in congestion of the brain or of the lungs. — h. Besides the external means already alluded to, various others may be employed near the seat of congestion ; as moias, the acfual cautery, dry cupping, stimulating or rubefacient liniments, dry friction, the warm and tepid affusion or douche, the nitro-hydrochloric acid lotion, chlorine or fumigating baths, electiicity or galvanism ; but these are most appropriate to the more chronic states of congestion. There are other remedies besides the few now adduced,which are suitable to particular states and seats of con- gestion, and which fall under difl'erent heads. 13. ii. Having removed the congestion, it will be necessary to employ means to prevent its recur- rence, for the part once thus affected long retains a morbid disposition. This object can be obtained only by a careful avoidance of the exciting causes — by preserving a free state of the secretions and excretions — by promoting the digestive functions, and invigorating the system by moderate exercise in the open air, either on foot or horseback — by the use of mineral waters, particularly those which combine a tonic with an aperient and deobstruent operation, as the waters of Cheltenham, Harrogate, Scarborough, Leamington, Seidschutz, Carlsbad, Bath, Marienbad, Vichy, and Eger — by warm clothing, and by guarding against general vascu- lar plethora. BiuLioG. AND Refer Stall/, Tie Motu Tonico Vitali, imieque pendente Motu Sanguinis particulari, &c. Jena;, Ifiye. — /frtg/N'f, Opp. p. 350.— Juncker, Dissert, de Con- gestionibus. Halw, 1748. — Iscvflminn, De Coiigestioiium Mechanismo. Erl. 1749. — A. E. Bic Congest. Natura, Causis, et Kffectibus. Ilala', 1749 — \i'co/. ii'A.\}i. — Autcnricth, I'liysiologie \ 383. 5i)9.— !ifil, Ucberdie Lebenskraft, v. Arcli. v. fur I'by- siologic, b. i. st. 1. p. V29.-^(liii')i.sr/, in Ilufc/and'.i Journ. der Pract. Heilkunde, b. xiii. st. 4. p. 128 — Sa/xhirgi'r, Med. Chir. Zeitung, 1801, b. iv. p. '2bl. — Aliler, in Med. and Pliys. Journ. vol. xxi. p. 29(i. — Pring, Principles of Pathology. Lond. 1823, p. 443. —£. Sarlovi, in Cyclop, of I'r.ict. Med. vol. i. p. 405. CONSTIPATION CONSTIPATION. — Svn. Constipatio vel Ohs- , tipatio Alvi ; Alv^ts tarda, dura, adstricta, Vai". Auct. Tarda Alvi Dejectio, Vogel. Ohs- tipatio AU?iita, Young. Stypsis (from a-rvipcD, 1 conatringe) Ploucquet. Coprostusis, Good. Hartleibigheit, Germ. Constipalion, Paresse du Ventre, Vr. Costipasioiie, Ital. Bound Belly, Costiveness, Obstipation, Fcecal Retention, Al- vine Obstruction. Classif. — 4. Class, Local Diseases ; 5. Or- der, Obstructions {CuUen). 1. Class, Digestive Diseases; I. Order, Affecting the Alimentary Canal (Good). I. Class, I. Order (Aiiihor}. 1. Defix. Prolonged retention of the feeces ; or slow, imperfect, or difficult eracuation of them. 2. Dr. GuoD has made Coprostasis, or Cos- tiveness, a genus, and divided it into C, Co7i- stipata, and C. Obstipata ; the chief difference being, that the evacuation is voluminous in the foimer, and scybalous or slender in the latter. This division is nearly tiie same as that previously adopted by Dr. Bateman, viz. into Costiveness and Constipation. I believe, however, that any distinction between them is quite unnecessary ; inasmuch as either the one or the other, even according to tiie import these writers attach to them respectively, may arise from exactly the same pathological conditions ; and that it will be better to employ these terms in their usual ac- ceptation, and to make constipation an inter- mediate grade between costiveness and obstipa- tion ; or, if any other difference than that of degree be imputed to them, to consider obstipa- tion as a modification merely of the others, by attaching to it the idea of difficult and imperfect voidance of the fa:ces, as well as of prolonged retention of them — which latter alone vvill apply to costiveness and constipation, according to the degree of obstinacy by which the retention may be characterised. 3. The slighter grade, or costiveness, can scarcely be considered as a disease in some con- stitutions, as it is often attended by a good state of health in other respects, and seldom, continues so long as to occasion any appreciable disturb- ance. But, when neglected, it gives rise to those collections in, and morbid conditions of, the colon, which have been described in that article, and favours the occurrence of other maladies. Although cases are frequently occurring in which little disorder results from constipation, except from the means used to remove it, yet very serious or even fatal effects not infrequently accrue from it. I shall, therefore, adopt the opinion 'of Cullen, and consider the retention of the faeces beyond twenty-four hours, without the desire of evacuation, as an approach to a morbid state, and therefore requiring medical aid. 4. Duration, S)C. — The annals of medicine abound willi cases in which the faeces had been retained for an almost incredible time, with- out any serious or severe symptom supervening. The occurrence of constipation for several days, or even weeks, is not rare, particularly in some constitutions, and in weak or delicate females, who take little nourishment, and as little exer- cise ; and, excepting lisllessness with debility, little disorder is complained of. It is not un- common to meet with cases, especially in this sex, where extremely little food is taken, and — Its Pathologv. 405 where the faecal evacuntions are not more fre- quent than once a week, or once a fortnight or three weeks ; eliminations of effoete matters from the blood taking place chiefly by means of the skin, the surface of the lungs and kidneys, and generally in an insensible manner. But cases also more rarely occur, where the retention is much longer, even without any other symptom than great flatulent and fa>cal distension, par- ticularly of the colon, until, suddenly, symptoms of colic, ileus, or inflammation, come on, and soon terminate the life of the patient, or put it in extreme jeopardy. Instances have been adduced by RiioDius, Pan aroi.us, Salmuth, Devilliers, Blankard, Erhard, jNIossman, &c., of consti- pation continuing for five, six, or seven weeks, and even for as many months, without any faecal evacuation. Dr. Baillie published a case which continued for fifteen weeks ; and Joerdens met with cases of fourteen, fifteen, and twenty-one weeks. Instances of constipation continuing three, four, five, seven, eight, and nine months, have been detailed respectively by Trioex, Chaptal, Smetii's, Staniland, Pom ma, Cramptox, and V^alentin. In many of those very prolonged cases, the appetite was very deficient ; but in that ad- duced by Mr. Staniland, which continued for seven months, the appetite continued good until inflammation, which rapidly terminated life, came on. This person, a young female, never had more than one evacuation every two months, during a period of five years ; all which time she appeared otherwise in good health. Indeed, in some instances of less duration than those now alluded to, the appetite has been much greater than in health. I have met with several cases of habitual constipation, in which the patient had a ravenous appetite, and yet did not pass a fascal evacuation oftener than once every four, six, eight, or ten days; but in almost every such instance, either the breath has been loaded with an offensive vapour, or the perspiration has been abundant and disagreeable, or the urine copious and much loaded, — evidently proving that the disorder was connected with a rapid absorption from the alimentary canal, and augmented evacu- ation by the other excreting surfaces, or by the kidneys". The inordinate excretion that takes place by this latter emunctory, and the con- stipation, and ravenous appetite accompanying it, in diabete-, further shows that a very large pro- portion — sometimes [nearly all — of the ingesta vvill sometimes be so far digested as to admit of their absorption, their subsequent discharge taking place almost exclusively by the skin, lungs, and kidneys ; a proportionate diminu- tion of the excreting functions of the bowels, and consequently of faecal matters in them, being the result ; that portion, however, which does collect, being retained until it excites them to action, either by the bulk or by the irritating properties it may have acquired, when also it may be the cause of a morbid or perverted action. The above circumstance shows (what, indeed, physiological research has proved), that, in healthy persons, the principal part of the fascal discharges consists of secreted matters, and but a small portion of them of such parts of the food as have escaped the changes produced by di- gestion ; and it proves the accuracy of the opinion entertained by Cullex, at least as respects a Dd3 406 CONSTIPATION — Causes of. large number of such cases, viz. that costiveness arises, in great measure, from the absorption of the more fluid parts of the contents of the bowels, whether consisting of the digestive aliments, or of the exhaled or secreted fluids poured into them. 5. I. Causes. — i. Remote causes. Habitual costiveness is most common in persons of the melancholic temperament, of a thin and robust habit of body, and of a rigid constitution of fibre ; and is often connected with great activity of the absorbent function. The most prolonged cases of constipation usually occur in thin delicate females, and is obviously owing to an asthenic condition of the organic functions, particularly those more intimately connected with the ali- mentary canal. Meckel states, that cretins are very generally constipated, partly owing to their inactive existence. It is very often caused by the use of indigestible food, as heavy, or imper- fectly leavened, or adulterated bread, new cheese, nuts, cucumber, &c. ; by stimulant and astringent aliments and beverages ; by the use of narcotics ; by smoking or taking snuflf; travelling in carriages or on ship-board ; by sedentary occupations ; too long indulgence in sleep, and too warm beds; inattention to the first intimation to alvine evacu- ation ; venereal excesses; prolonged lactation; excessive perspirations, or increased exhalation and secretion from other surfaces and parts than the intestinal canal ; mental or physical exertions too long continued ; advanced age ; pregnancy ; and the various mechanical and organic causes about to be noticed (§ 9. et seq.). 6. ii. The im7nediate causes, or pathological states giving rise to the retention and imperfect excretion of the faeces, appear to be the follow- ing : — 1st, Impaired or torpid functions of the duodenum and small intestine. (See Duodenum.) In this form of disorder, more or less obvious symptoms of indigestion are usually complained of from two to four hours after a meal, and it is often attended by a slow pulse, slight sallow- ness of the countenance and skin, with disten- tion or uneasiness about the right hypochondrium, and, in some cases, with a dull pain in this situ- ation, and unnatural heat of the palms of the hand and soles of the feet. The tongue is foul at the root, while the sides and point are red ; the urine high-coloured, or depositing much sediment, and the pulse sometimes slower than natural ; but occasionally quicker a few hours after a meal. 2d, Torpid Junction of the large bowels, affect- ing either the cacum, colon, or rectum, in a more or less special manner. In this form of disorder, constipation is usually more prolonged tlian in the foregoing, and the sense of distension or uneasiness is referred to tlie situation of these viscera. There is also much flatulence, and all the symptoms more particularly noticed in tlie article on Torpor of the Colon. 7. Constipation may thus arise from an inactive state of any part of the alimentary canal, but it most frequently and immediately depends upon torpor of the portion devoted to the function of ficcation ; and, although a part only of the di- gestive tube may be chiefly affected, yet disorder is seldom limited to it, — the fun(;tioiis of tlie ad- joining portions, and, in many cases, of the whole canal, l)eing impaired. It may bo useful, also, to endeavour to estimate in what this disordered function may consist, and whence it proceeds ; and although nothing beyond conjecture will often be advanced, yet will our opinions very often be well founded, particularly after repeated observation, and the attempt will therefore be- come advantageous in practice. Impaired func- tion, then, of any part, or even of the whole, of the intestinal canal, producing either habitual costiveness, or the occurrence of prolonged con- stipation, may be owing to one or more of the following states : — a. To a diminished secretion, or modified condition of the biliary and pancreatic fluids; — b. To lessened exhalation from the mu- cous coat of the intestines, and to impaired secre- tion from the follicular glands of this membrane ; — c. To a rapid absorption from the internal sur- face of the bowels ; — d. To relaxation, or torpor of the muscular coats of the intestines giving rise to distension, followed by imperfect or irregular re-action on the distending power, and consequent fascal and flatulent accumulations, particularly in the large bowels; — e. To rigidity of the longi- tudinal bands of the colon, forming this viscus into cells, and diminishing the calibre of the central canal, from each side of which the cells diverge, — thereby occasioning that state of con- stipation or obstipation, which is characterised by scybalous stools, and a diflScult and imperfect evacuation of them ; — /'. To the production and accumulation of flatus in the intestinal tube, which, by the distension and inaction of the coats it occasions, as well as by its mechanical effects in obstructing the passage of the faeces, and im- pacting them into masses, often proves no mean obstacle to the regular process of faecation ; — g. To the accumulation of mucous sordes on the surface of the intestines, or the lodgment of hardened fa;ces in the caecum, cells of the colon, or rectum ; and, lastly. To a varied combination of two or move of the above states of function. All these may be resolved into, or referred to, one morbid condition, viz. impaired organic nervous power, or diminished vital manifestation of the digestive canal, expressed in one or more of the above modes, or occasioning these pathological conditions. 8. The above may constitute primary or idio- pathic con^iipaiion, or intestinal indigestion; or, in other words, functional impairment of the de- fecating process. But constipation is as fre- quently consecutive of lesions, either (n) of the structure of the coats of the bowels themselves, and affecting the calibre of their canal ; (h) or of adjoining parts, causing obstruction, compression, or displacement of them ; (c) and it is also very often sympathetic of other diseases, which derive from them some portion of the vital action requi- site to the regular performance of their functions. The last of these requires no further notice, as it resolves itself into the pathological states above enumerated ; but it is very important that the practitioner should be enabled to recall to his recollection the various changes which not infre- quently do occur, and give rise to the same state of disorder as the functional derangements above stated ; as, upon a recognition of their presence or of their absence, the prognosis and treatment will very materially depend. The enumeration of these will also comprise all that has been found upon the dissection of such cases as have ter- minated fatally, fuller details respecting them CONSTIPATION — Consequences and Terminations or. 407 being given in other articles, particularly in that upon the Organic Lesions of the Digestive Canal. 9. A. Lesions, chiejiy of structure, affecting the bowels and retarding the deftecating processes, — a. Extreme dilatation of one or all of the large bowels, soinetimes independently of much faecal accumulation ; but most commonly accompa- nied with large collections of hardened faces and gases (Stcerck, Buendel, Callisen, Abeii- cROMBiE, Staniland, and many others). Incases of this description, the caicum and colon have frequently been observed from twenty to thirty inches in circumference. b. Scybala, hard bodies, particularly biliary or intestinal concre- tions, the stones of fruit, &c., in various parts of the intestines, especially in the caecum or before its valve, the sigmoid flexure of the colon, and in the rectum just above the sphincter, and press- ing upon it and the prostate. Instances of pro- longed constipation have occurred in my practice from the obstruction occasioned by large balls of lumbrici and ascarides. A singular case of this description was noticed by me in the London Medical Repository (^vol. xvii. p. 243.), and similar effects have been mentioned by Lieutaud, Brera, Renauldin, and Bremser. c. Of in- flammation of an insidious character, and sub- acute or chronic form, affecting chiefly the mus- cular or peritoneal coats of some part of tlie bowels, particularly of the small intestines ; and eitiier altogether arresting the peristaltic and tonic movements of that part, or greatly diminish- ing their activity, d. Contractions of various parts of tlie intestinal tube, but most frequently of the rectum, next of the colon, and least frequently of the caecum and small intestines : these may be small in extent, allhougb great in degree ; or they may be the reverse. The nar- rowed part may be affected by spasm, or by thickening of one or more of its coats ; this latter change being either so limited as to have the form of a ring (Home, Baillie) ; or extended much wider, and seated in a large portion of the bowel, or in more than one part. It may, more- over, be ulcerated, callous, cartilaginous, scir- rhous, or even carcinomatous, &c., and it is always attended by great distention of, and faecal accumulations in, the part above it (AIqrgagni, Lorry, Stole, Baillie, Portal, Howship, Calvert, Annesley, &c.). e. Hajmorrhoidal tumours, either in a state of inflammation or irri- tation, and fissures, &c. of the anus, will often occasion constipation : the latter, by rendering the sphincter of the anus irritable and spasmodi- cally contracted, so as to oppose the expulsion of the faeces retained in the bowel ; the former, by producing the same effect upon the sphincter, as well as by presenting a mechanical obstacle when seated internally, /'. Constriction, or contrac- tion, of a portion of intestine by adhesions or by cicatrisation (Theden). g. Polypoiis, fungous, or flesliy excrescences growing from the inner surface of the caecum, colon, or rectum ; polypi of t!ie sigmoid flexure of the colon passing down into thje rectum (Portal, Meckel, &c.) ; sar- comatous tumours, and scirrhous and carcino- matous productions in the rectum or colon, are irremediable causes of obstruction when they reach a certain extent, and occasion great, and sometimes enormous distention of the parts im- mediately above them, with fajcal accumula- tions *, &c. 10. B. Constipation is also not infrequently the consequence of diseases seated exteriorly to the coats of the intestines, and compressing or dis- placing them, and of which the following are the most remarkable: — a. Tubal or extra-uterine fcetation, pregnancy, hernia, &c. h. Pressure on the rectum, arising from luxation or fracture of the OS coccygis (Ephem. Nat. Curios, dec. iii. ann. V. and vi. ob. 241.). c. The pressure of tumours in the uterus or ovaria ; prolapsed or retroverted uterus (Hunter, Wedel, Schultz, Marsinna, and myself), d. Various tumours seated be- tween the uterus, vagina, and rectum (Bader, BoNET, Burggrave) ; abscess in the same situ- ation (Ephem. Nat. Curios, dec. i. ann. iii. ob. 167., and myself) ; and too large a pessus in the vagina (Bavauu). e. Abscess between the blad- der and rectum (Conradi, Leske, &c.), and enlargement or otiier disease of the prostate (Ford, myself, and others). /. The pressure of enlarged sacral glands (Cruickshanks), of an enlarged ovarium descending in the pelvis (Mo- eller, Odier, Sec), and of various kinds of tumours — sarcomatous, steatomatous, fibrous, and cartilaginous — developed in the omentum, within the pelvis, &c. (Lauth, Reidlin, Schjef- FER, OsiANDER, HuFELAND, &C.). 11. C. Obstinate constipation may also de- pend upon, or at least be connected with, in- jury or disease of the spine. In delicate females, it is not uncommon to find ffecal retentions pro- ceeding from this cause. In many of such cases, much pain is felt when the spine is examined, indicating the presence of inflammatory irritation of the envelopes of tlie chord, or scrofulous dis- ease of the bodies of the vertebrae. In cases of this description, tlie functions of the intestinal canal are iinpeded, or otherwise disordered, by the morbid influence exerted by the spinal nerves upon the organic nervous system, through the medium of their communications with this system. 12.11. The Consequences and Terminations of constipation require the iitraost attention, as respects both the prevention of such of them as are unfavourable, and the recognition of their early approach. Among the most common re- mote consequences of fajcal retention, are cuta- neous eruptions, headachs, vertigo, various * The following case is not only extraordinary but in- structive:— M. G , a medical olticer in the French service, was always costive from birth. He ate largely, but seldom passed a stool oftcner than once in one or two months; and his abdomen assumed a large size. At the age of 42, his constipation was usually prolonged to three or four months. In 1S06, after medicines had been taken to procure a stool, which had not been passed for upwards of four months, abundant evacuations contmued for nine days, and contained tlie stones of raisins taken a twelve- month before : but the constipation returned. In ISOy, the enlarged abdomen became painful, vomiting supervened, and he died at the age of 54, having seldom, through life, passed more than four, five, or six stools in the ye;ir. On opening the abdomen, a fibrous partition obstructed the rectum about an inch from the anus. Immediately above this partition, the rectum was so enormously dilated as to fill all the pelvis, and nearly all the abdomen. The enormous cloaca contained thirty Kilogrammes of brownish black and very oftensive pultacoons fteces. Its inner surface presented gangrenous andulcerated patches. The lower part of the colon was enlarged to the size of the stomach ; which, with thesmall intestines, liver, &c., appeared diminished in volume and capacity by the pres- sure of the distended rectum. (Renauldin, iii Did. des Scien. Med. t. vi. p. 257.) , , Dd4 408 CONSTIPATION ■ dyspeptic symptoms, chlorosis, liysteria, and chorea. ' The strainings at stool is liable to pro- duce apoplexy and hernia in .aged, and hsemop- tysis in young persons. When constipation is -neglected or improperly treated, the most serious effects are produced immediate^^^ upon the bowels themselves ; hccmorrhoids,- severe colic, passing into ileus or enteritis, being not infrequent results. These very serious consequences of constipation may, however, proceed as much from the use of too powerful 'drastic or acrid remedies, to procure evacuations, as from the fa;cal retention. I have repeatedly seen dangerous effects follow a large, or even a moderate dose of castor oil, which had become rancid or acrid by exposure to the air, or by long keeping. When the constipation has continued long, the most distended portions of the bowels, either by flatus or accumulated fjEces, sometimes pass rapidly and insidiously into an inflamed state, which, if not speedily subdued, soon terminate in sphacelation, or in a kind of sphacelating ulceration. In all cases, therefore, of obstinate, and even of early con- stipation, the state of the abdomen — particularly in respect of tension, tumefaction, hardness, definite or indefinite tumour, tenderness, heat and dryness of skin, and pain on pressure, &c. — should be carefully examined by touch, and mediate percussion ; and if any of these symptoms be present, the accession or early progress of in- flammation, and other unfavourable consequences now noticed, should be dreaded or even inferred. If, to these be added nausea and vomiting, heat of skin, high-coloured urine; an erect, wliite, or loaded appearance of the papillae of the tongue ; hard, constricted, or oppressed pulse, even al- though it may be slower than natural ; and more especially if pain, tension, &c. be present, with hiccup ; inflammatory action of a serious or unfavourable kind is obviously present, or even far advanced, and calls for the most decided means. (See arts. Colic, and Intestines — In- Jiammation of.) Nor should we overlook the fact, that constipation is a very common symptom of enteritis, which may actually exist without occasioning mucli febrile disturbance, or affect- ing the pulse ; great care is therefore necessary at the outset, in distinguisliing simple constipation from the constipation which proceeds from the slow and insidious occurrence of inflammation of the intestines, — a diagnosis, which only a care- ful examination of the abdomen, and enquiry as to the above symptoms, can furnish. 13. III. The PuofiNosis in constipation is very favourable in slight cases, and in those of short duration, particularly wlien unattended by nausea or vomiting, or by pain, tenderness, and tumefaction of the abdomen, or by any febrile symptoms : it should be given with great caution when these symptoms are present, as tiiey indi- cate ihe accession of inllammatory action : and it ought to be unfavoitruble, when tiie obstruction is prolonged, notwithstanding the judicious em- ployment of remedies, or when any of the symp- toms indicating the accession of the unfavourable terminations noticed above make their appear- ance; for these states of disease arc more dan- gerous when they supervene on obstinate or pro- longed constipation, than wiien they occur in a simple and idiopatliic form. Wiien fa?cal reten- tions apparently proceed from any of the organic Prognosis — Teeatment. changes enumerated above (§ 9, 10.), the prog- nosis will necessarily depend upon the nature, seat, and extent of these lesions, as far as they can be ascertained ; as, for example, when it is owing to enlargement of the prostate, contractions of the rectum and colon, tumours in the pelvis, &c., an opinion of the result, although generally un- favourable, will vary according to numerous concurrent circumstances, particularly as respects a permanent recovery, or an immediate or remote occurrence of a fatal issue. 14. IV. TnEATMENT. — The mcans of cure in every case of constipation are directed with the intention, 1st, Of procuring ftecal evacuations by as gentle and unirritating means as may be adequate to the purpose; and, 2dly, After having fully accomplished this end, of preventing a recurrence of a torpid condition of the bowels and digestive organs generally. 15. i. The removal of existing constipation. — A. The slighter and more common cases of consti- pation are most benefited by the use of such means as are generally employed to promote the secretions poured into the intestinal canal, and to excite its peristaltic action. About three or four grains of blue pill, either with or without a little Castile soap and extract of taraxacum, taken at bed-time, once or twice a week ; and a draught consisting of equal quantities of the compound infusions of gentian and senna, with a little neutral salt, &c. (see F. 205. 266.) ; or of the compound decoction of aloes , on alternate mornings, will generally be all that is required. Besides these, any of the stomachic and aperient medicines pre- scribed in the Appendix may be adopted (see F. 215. 252. 558. 574.); the patient having recourse to the shower bath, or cold plunge bath, in the morning, and resorting regularly to the water closet after breakfast. 16. a. In the slight, as well as in habitual and frequently recurring constipation, it will be useful to ascertain, as accurately as possible, the par- ticular viscera in fault, and what function is de- ficient (§ 6. e£ seg.). When we suspect that the duodenum and smaltintestines are especially affected (4 6.), the compound infusion of senna, or the infusion of rhubarb, combined according to the circumstances of the case, either with the alka- lies or their carbonates, or with vegetable bitters and tonics, or with ipecacuanha, taraxacum, and antispasmodics, as here directed, will generally remo've all disorder. (See also F. 251. 391. 506. 562.) No. 143. R Infusi Rhei. (vel Infusi Senna Comp.), Aqua; Piroenla; aa 3 vj. ; Liq. Potas.sie ^^\ xx. ; E.\tracti Taraxaci .3 j. ; Spirit. Myristica; 3 j- M..Fiat Haustus!, mane vel hora somni sumenclu.?. No. 144. B Infusi Scnnx Comp. 3 vss. ; SodiE carbon. 3 jss. ; Villi Ipccacuanlia\ .3 jss. ; Spirit. Amnion. Arom. et Tiiict. llyoscvami iia 3 j. ; Tinct. Cardamom. Comp. 3;ij. M. Fiat Mist., cuju.s capiat Coch. iij. larga mane nocteque. No. 14.'). B Infusi CaUimba; (vcl Infusi GentianiE Comp.), Infusi Sennie Comp.. Aa 3 ijss. ; Liq. Potassse 3 jss. ; Extr. Taraxaci 3 ss. ; Spirit. Pimento; (vel Myris. tica;) 3 ij. M. Fiat Mist., de qua sumantur Coch. iij. larga hora somni, vcl prime mane. No. 14fi. }^ Extr. Colocynth. Comp. 3 ij. ; Saponis Cas- til. gr. X.; I'ulv. Ipecacuanha; gr. vj.; Kxtr. Hyoscyami 3 ss. Contunde bene simul et fiant Piliila;xviij.,quarum capiat binas hora somni quotidie. No. 147. B Decocti Alots Comp. 3 "vss. ; Liquoris Potassae (vel Carl). Sodffi) 3 j. ; Viiii Aloiis 3 vj. ; Extr. Taraxaci 3 iij. ; Sjiirit. Pimenta; 3 ss. M. Capiat tertiam vcl quartam iiartcm pro dose, et rcpetatur pro re nata. No. 148. B Magiics. Suli>hatis 3 j. (vol PotassjE .Sul- phatis 3 ss.) i Infusi Rosae Comp., Infusi Gentiana; Comp. aa 5 vj. ; Acidi Sulpburici Arom. Til x Sennas Comp. (vol Tinct. Aurantii) 3 j. — 3 ij. Haustus, omni meridie capicndus. ; Tinct. M. Fiat In most instances of constipation depending upon torpor of the small intestines, and dfjicient bilianj secretum, a full dose of blue pill or of calomel should be exhibited at bed-time, and a common black draught the following morning, at the commencement of the treatment, with the view of promoting the secreting functions of both the liver and the mucous follicles of the bowels ; and a moderate action ought to be kept up for some time subsequently by the remedies now adduced. 17. b. In those cases in which the large bowels are chiefly in fault, the preparation of aloes va- riously combined, the means already mentioned, particularly l\ 1-16, 147., or those recommended in the articles on the Colos, and on Cone, will be generally found appropriate. In some in- stances, however, it will be requisite to have recourse to more powerful cathartics than I have yet mentioned — particularly when irritability of the stomach, or of the system generally, does not exist — and to promote their action by eneraata. The following, or F. 140, 141. in the Appendix, may be employed : — No. U9. R Pulv. Jalap, gr. xij. ; Pulv. Scammoniae gr. V. ; PotassiB Sulphatis 3 j ; Olei Caryoph., et Ol. Ca- nii, aa HI iij. Tere bene siinul, et fiat Pulvis in qiiovis vchiculo idoneo sumendus. No. 150. R Magnes. Sulpliatis 3 vj. ; Infusi Senna: Comp. 3 ij. ; Tinct. Jalap. 3 j. ; Tinct. Opii HI vj. — x. (vel Tinct. Hyoscyami 3 ss.) ; Tinct. Castorei, Spirit. Pi- mentK, aa 3 j. M. Fiat Haustus. No. 151. R Extr. Colocyntli. Comp. 3 ij. ; 'Saponis Castil. gr. xij. ; Olei Crotonis gtt. iij. (vel Extr. Nucis Vo- miciE gr. iij.) M. Fiant Pilulae xii. Capiat duas hora decubitus. No. 152. R IMannaj 3 j. ; Infusi Anthemidis 5 xij. ; solve, et adde.Olci OUviE 5 ijss. ; JlagnesicE Sulphatis 3 jss. Sit Eueraa. 18. c. In cases apparently depending upon deficient tone of the muscular coat of the large bowels, and imperfect propelling power of the upper part of the rectum, I have seen benefit derived from combining the spirituous extract of nux vomica or strychnine with the pilula aloes cum myrrha, or with the compound extract of colocynth,as directed above in 1\ 151., in place of the croton oil. When this state is connected with deficient secretion from the intestinal mucous surface (§ 7. /;.), small doses of the croton oil, from one sixth to one half of a drop, combined with some other purgative, and repeated daily, or on alternate days, will remove obstructions from, and restore the secretions of, the mucous follicles. In cases also where the internal surface of the intestines are loaded with a viscid mucous sordes ( j 7. g.), it acts more efficiently than any other medicine, particularly when combined as above (R 151), or with calomel or blue pill, and restores more permanently the functions of the intestines. I have recently met with several cases of con- stipation consequent upon attacks of pestilential cholera, and in nearly all of these I have inferred the existence of not only imperfect peristaltic action of the bowels, but also an accumulation of viscid mucous, or albuminous sordes on their internal surface, — an inference confirmed by the state of the evacuations. The combination of purgatives now alluded to has proved more effi- cacious in removing this morbid condition, than any other I have employed. 19. d. In children and young females, consti- pation is generally attended, even if it be not CONSTIPATION — Treatment. 409 caused, by deficient' secretion from the mucous follicles, and by aii |iccumulation of mucous sordes (the Saburra intestinalis of the older writers, and the T£fiibarras Sahural and Einbarras intestinal of French authors) on the internal surface of the bowels. In these cases, a dose of calomel, with either jalap or scammony, and triturated with sugar, and followed by castor oil, or the infusion of senna with salts, or by the decoction of aloes, &c., according to the circumstances of the cases, will- generally procure full evacuations. But in many such. cases, the repeated exhibition of these will be required before the collected sordes can be removed ; and even when the evacuations have assumed a healthy appearance, it will be requisite to resort occasionally to purgatives combined with tonics and resolvents — such as senna, aloes, or rhubarb, with gentian, cascarilla, cinchona, or calumba ; and with potass, soda, &c., before the functions of the bowels will be altogether restored. 20. e. When the fajcal retention assumes the form of obstipation, and is attended with difficult or imperfect evacuation ; or with frequent desire, and tenesmus; and with hard, rounded, scybalous discharges ; we may infer the existence of rigidity of the longitudinal bands of the colon (j 7. e.) ; and should combine anodynes and antispasmodics with purgatives. I have commonly derived most advantage from small doses of castor or olive oil, exhibited frequently, in some carminative or aro- matic water, with a little tincture of hyoscyamus and ipecacuanha wine ; and from demulcent, anodyne, and oleaginous clysters (F. 143, 144. 795.) Electuaries, also, consisting of the con- fection of senna, with cream of tartar, magnesia, extract of hyoscyamus, &c. (see F. 96. 98.J, will generall)' prove more serviceable, in these cases, than very active medicines. When the retained, scybalous fieces produce irritation of the colon, the frequent calls to stool, and the scanty, mu- cous, and watery evacuations, may lead the prac- titioner to suppose, if he rely upon the account of the patient only, that diarrhoea, instead of constipation, actually exists, and hence to adopt an improper treatment. In these cases, the warm or tepid bath, the addition of ipecacuanha, or hyoscyamus, or both, to the purgatives given by the mouth, and the use of clysters with infusions of ipecacuanha and linseed, and with olive, lin- seed, or almond oil, will generally procure the evacuation of scybalous faeces. When the bowels are distended by flatus, the operation of aperients will be most assisted by gentle friction of the abdomen ; and confidence to persist in the use of it will be given by directing the friction to be employed with some liniment (F. 298. 306.), or with l\ 157. subjoined. No. 153. R Olei Ricini recentis3 j.— 3 ij. ; tcrecum Vi- tello Ovi unius, et adde terendo, Vini Ipccacuanhje Tl] x.; Tinct. Hyoscyami Til xv. ; Tinct. Castorei HI xx. ; Aquse Pimentse 3 xj. M. Fiat Haustus, 4ta vel Sta quaque hora sumendus. No. 154. R Potassa; Bitart. in Pulv. 3 j. ; Soda? carbon, exsic. (vel Magnesiee Calcinatae) 3 iij.; ConfectioiiisSennse 3jss. ; Ccnfectionis Rutje 5 ijss. ; Extr. Hyoscyami gr. xij. ; Pulv. Ipccacuanhse gr. ij.— iij. ; Tinct. Capsici 5 ss. ; Syrup. Zingiheris q. s. ut fiat Electuarium, cujus capiat partem quartam 4tis vel 5tis horis donee pleni- dejecerit alvus. No. 155. R Sodfe Sulphatis, Manns Opt., aa 3 j,i solre leni cum calore in AquK Menthse Virid. 3 vjss., et adde Tinct. Senna; Comp. 3 j- ; Vini Ipecacuanhie 3 j. ; Tinct. Capsici 3 ss. ; Spirit. Carui 3 ij. M, Capiat Coeh. larga quatuor tertiis vel quattis horis. 410 CONSTIPATION — Treatment. No. 156. R; Olei Amygdalae Olei Ricini, Mannae Opt., aa 3 jss. ; Aq. Pimentae 3 xj. M. Fiat Haustus, 4tis, 5tis, vel 6tis horis sumendus. No. 157. R Unguenti Cetacei 3 jss. ; Olei Carui et Tinet. Opii, aa 3 jss. Misce, et fiat Linimentum, cum quo illinatur abdomen, urgente flatu. 21. B. a. In the more obstinate or prolonged cases of constipation, which have resisted the above, or any other means usually employed to procure evacuations, we should endeavour to ascertain, by enquiring into the previous state of the patient's digestive and intestinal functions, and by examining the abdomen, rectum, and parts in the vicinity, the probable cause of obstruction. The account which may be furnished of the appearance of the evacuations heretofore, and of the facility with which they had been evacuated, as well as of the sensations felt before or at the time of evacuation, will very materially guide the judgment of the practitioner in concluding respecting the existence of organic disease of the colon or rectum, or in the vicinity of the latter. Frequent attacks of diarrhsea, tenesmus, or dy- sentery, previously to the occurrence of con- stipation, or of pain in the course of the colon, or along the sacrum, should always lead us to sus- pect narrowing, or thickening, or both, in some part of the colon or rectum (§ 9. d.). In such cases, we should endeavour to solicit fajcal dis- charges by oleaginous and saponaceous clysters, and frictions of the abdomen, rather than by purgatives taken by the mouth ; and we ought not to be too officious in the use of these ; but should so study the feelings of the patient, as to prevent irritation and febrile disturbance — the harbingers of inflammation — from coming on. In these cases particularly, examination of the state of the rectum, and the lower part of the colon, by the introduction of the long flexible bougie, as recommended by Dr. Willan, should not be omitted ; and if any stricture exist within the reach of this instrument, its gradual dilatation should be attempted. If a stricture be reached, it may be of service to use a hollow bougie, along which enemata may be thrown up so as to pass beyond the seat of obstruction, which might otherwise not be overcome by them. In- stances have been met with, in which stricture and organic disease of the colon have apparently existed for some time without constipation having been complained of ; and yet the exhibition, when constipation did take place, of acrid purgatives in large and repeated doses, has been soon followed by an unfavourable issue, which, however, might not have been much longer deferred by any treat- ment whatever. Cases illustrative of this occur- rence have been recorded by Home, Sterry, Annbslev, &c. (See references.) 22. b. In almost every instance in which the bowels still remain obstinately costive after two or three doses of purgative medicine have been given, but without any urgent symptom being com])lainod of, it will be more advantageous to use gentle means, to trust chiefly to enemata, and to wait patiently the result, than to prescribe medi- cines which will irritate and invert the action of the upper part of the digestive tube without reaching the seat of obstruction. If, notwith- standing, symptoms of inflammatory action begin toappciir; or if the stomach become irritable; or if the pulse be oppressed, hard, or constricted ; or if the patient be plethoric and of a sanguine or I irritable temperament, venaesection, or the appli- cation of leeches to the abdomen, or both, should be resorted to, and hot poultices and fomentations, or the warm turpentine epithem, or a blister, be afterwards placed upon the belly. The patient may then be left quiet for several hours, in expect- ation of the action of the purgatives previously given; or, if the stomach be irritable, soothing and anti-emetic remedies (F. 178, 179.357.) only, or a full dose of calomel with opium or hyoscy- amus, should betaken, and after a few hours the enema may be repeated. In cases of obstinate constipation, unconnected with contraction of the colon or rectum, a large dose of calomel, either alone, or with opium or hyoscyamus, may be exhibited, and repeated once or twice, at distant intervals ; each dose being followed either by castor oil, or by the common black draught, or by half an ounce of turpentine with an equal quantity of castor oil in any suitable vehicle. But where inflammatory disease, or lesions con- sequent upon inflammation, are suspected to exist in either the colon or rectum, calomel, or even a full dose of blue pill, will often aggravate the mischief, unless emollient enemata be frequently thrown up. Indeed, I believe, from the expe- riments and observations I have made respecting the action of calomel on the alimentary canal — from remarking its effects in irritating and in- flaming the inner surface of the colon and rectum when taken in large doses — and from the history of the previous ailments, and treatment of many of those who have had stricture of the rectum or colon — that a very large proportion of such cases has been brought on by the fi-equent use of calomel as a purgative. 23. c. When we believe that constipation is owing to a torpid or paralysed state of tiie mus- cular coats of the large bowels, and the accuinu- lation of hardened fajces consequent thereon (§ 9. a.), oleaginous purgatives given by the mouth ; in some cases, a full dose of calomel followed by a turpentine and castor oil draught ; and, subsequently, oleaginous, saponaceous, and terebinthinate enemata ; are generally the most appropriate means. If, however, these fail, then small but repeated doses of castor, olive, or almond oil ; frequent demulcent enemata ; the aspersion of cold water over the abdomen or lower ex- tremities ; or injections of cold water, may be tried. (.See § 26.) If there be great inflation or ffEcal distension of the colon, friction, with the carminative liniment prescribed above (li 157.), may also be employed, with various otiier internal and external means recommended in the articles on Colic and Colon. In aged females especially, hardened faeces sometimes collect to such an extent, and are lodged so firmly in tiie rectum and lower part of the colon, as to require removal by mechanical means. Cases of this kind iiave been detailed by SciiuniG, Ptrrr, Jiisnoi'iucK, Seciievlrel, AVhite, &;c., and have occurred in my own practice, as well as in that of many others. They require the careful introduction of a mnrrow-spoon, or some similar instrument into the rectum, to break down the fasces ; and subsequently tiie means just stated, particularly oleaj^inous and terebinthinate injections thrown up by the pump apparatus now in general use, which should be provided with a large and very long pipe, or with a long, hollow, and flexible CONSTIPATION.— TUEATMENT. bougie, which ought to be passed as far as pos- sible up the rectum. 24. d. If alvine obstruction be apparently owing to organic, malignant, or other diseases about the uterus, its appendages, the vagina, or rectum (^10.); ov to spasmodic constriction of the sphincter ani excited by inflammatory irritation in its vicinity, or by hasraorrhoids, the warm bath, semicupium, or the hip-bath ; the vapour of iiot water and narcotic decoctions directed to the anus; anodyne and relaxing injections; and the extract of conium or hyoscyamus, made into either a suppository or an ointment, with the addition of a little of the extract of belladonna; may be prescribed, along with such other mea- sures as the circumstances of the case may require. 25. e. When constipation is dependent upon, or associated with, di.-ease of the spine, or in- flammatory irritation of the membranes and en- velopes of the chord, leeches should be applied near the place where pain is complained of; or the patient may be cupped in the vicinity, kept quiet, and in the horizontal position ; and the action of the bowels promoted by the means stated above (§ 16, 17.), and by terebinthinate injections. If inflation of the bowels exist, the carminative liniment may be employed ; and if tenderness, tension, or pain of the abdomen be complained of, leeches, followed by fomentations, &c. as already advised (§ 22.), should be re- sorted to. 26. C. Besides the above, other means have been recommended by authors in various states of the disease, and found of much service when appropriately prescribed. Joerdems advises the frequent administration oi assafwtida in enemata, and, in cases of deficient secretion and healthy action of the colon, it is certainly of essential use, either alone or in conjunction with purg- ative medicines. Starke recommends the in- spissated oi-gull, both in the form of pills and in clysters. In the latter form, it is calculated to prove an excellent adjuvant of other means ; and when combined with aloes, taraxacum, soap, ex- tract of gentian, &c. (F. 559. 562.), it is very serviceable in restoring the healthy functions of the bowels, and digestive organs generally. Wenut directs repeated clysters of the decoction of gratinla to be thrown up. Numerous writers liave advocated the application of cold, in cases of obstinate constipation. Schenk, A. Fonseca, Blankard, and Laison advise the patient to walli or stand upon a marble pavement or slab ; and Brassavolus states that Savanarola cured the Duke of Ferraia, by making him walk bare- footed over a cold wet marble floor. Steven- son, Falconer, Percival, and Spence direct the affusion of cold water over the lower and upper extremities, and adduce cases wherein the practice had been successful after other measures had failed. Kite, Bartram, Saxcassim, and ScHMiDTMANN rccommend cold epilhems, and the affusion or aspersion of cold water, over the abdomen ; and Kaehler, Korb, and Brandis advocate the administration of cold clysmata, in addition to the employment of cold externally. The cold and tepid shoicer hath, the cold plunge bath, and warm and tepid bathing, have severally been resorted to in aid of other measures, and are frequently of use, — the former particularly 411 .in habitual constipation, the latter in cases at- tended by difficult and imperfect evacuation, and seemingly dependent upon rigidity of the longi- tuidinal bands of the colon. Electricity -and gaivauispi iiave been employed successfully by Kite, Sioaud la Fond, Grapengi£sser, and ('larkson ; and the injection of tobacco smoke, and of a weak infusion of the leaves of tobacco, has been advised by Von RIertens, Vogel, and other authors referred to, when discussing the treatment of Colic and Ileus (ivhich see). The decoction of barberry ; -powdered charcoal (Mit- chell and Daniel), in the dose of one, two, or three table-spoonsful given every hour in milk or lime water; frictions of the abdomen (Quel- MALz) ; inunction of it with linseed or olive oil ( Riedlin,&c.) ; fomentations consisting of senna leaves made hot and moist by boiling water, and placed over the abdomen (Petit) ; purgative ex- tracts ; tinctures, and infusions, applied to this situation, either in the form of ointment or foment- ation (Schenck, Altbert, &c.) ; and enemata containing the potassio-tartrate of nj;(imouv(ELiAs), have also been employed. The exhibition o( emetics was advised by Hippocrates, Praxagorus, C;1:lius Aurelianus, and Alexander Tralles ; and of ipecacuanha orantimonial emetics by Stoll, Sims, Sumeire, Deplace, and Hosack. I have seen benefit derived from inunction of the abdomen with an admixture of castor and linseed oils, to which three or four drops of croton oil had been added. In a great proportion of the cases of con- stipation which have occurred to me since 1817, when I first adopted the practice, very certain and immediate advantage has been derived from a full dose of calomel (either with or without opium or hyoscyamus), followed in a few hours by half an ounce of oil of turpentine, and an equal or some- what larger quantity of castor oil, taken either in a cup of milk, cr in a glass of some aromatic water. The action of these has usually been promoted by an injection containing castor, olive, or almond oil ; and, if the operation has not been sufficiently copious, another dose of castor oil has been given, and the enema repeated.* * The following synopsis exhibits a succinct view of the treatment : — 1. If the pulse be hard or constricted, and if there be pain, increased on pressure, bleed generally or locally, or both — apply blisters or hot fomentations, or the cold effusion, or cold epithems, &c., on the abdomen ; afterwards exhibit purgatives, enemata, &c. 2. If con- stipation seems to arise from diminished secretion and exlialation, give calomel or blue pill, carbonates of the alkalies, jalap, the purgative oils, senna, camboge, ela- terium, croton oil, &c , according to circumstances. 3. If it depend upon a rigid fibre and habit of body, combine purgatives with relaxants and nauseants — with ipeca- cuanha, antimony, colchicum, soda, hyoscyamus, &c. ; prescribe emollient and relaxant medicines in i)reference to thoae that are acrid ; and give them with antispasmo- dics and sedatives, i. When it arises from torpid peri- staltic action and lessened secretion, conjoin tonics, gum resins, and bitters, with purgatives and aperients ; myrrh, assafcetida, galbanum,&c.,with aloes; sulphate of quinine, or ext. of gentian with aloes; the alkaline solutions, with tonic infusions; use friction with stimulating lini- ments to the abdomen, or along the spine ; resort to the cold salt-water bath or shower bath, and the tonic and aperient mineral waters of Cheltenham, Leamington, Viihy, and Carlsbad. 5. When it is attended by ac- cumulations of hardened faeces in the colon, have recourse to copious soapy or oily clysters — to the introduction of .a marrow-spoon to break down the fa?ces — to tl'e injec- tions of cold water, &c., by the valvc-apparatus, with a long bougie attached to the pipe — to the aspersion of cold water on the abdomen, or the application of cold to the lower extremities, &c. G. If it proceed from organic change of the large bowels, or of parts affecting them, solicit evacuation by emollient and relaxant enemata, and 412 CONVULSIONS 27. ii. The prevention of a recurrence of the disease should be strictly guarded against, par- ticularly after active cathartics have been given to remove it. Purgatives, aperients, or laxatives, combined with stomachic bitters and tonics ( F. 187. 266. 872.), ought to be taken daily, and afterwards on alternate days, until the functions of the bowels are fully restored. The patient's diet should be light and nutritious; all astringent and indigestible substances avoided ; and, if the abdominal secretions be deficient, an occasional dose of blue pill, or hydrarg. cum creta, and a course of taraxacum, with deobstruent laxatives and tonics (F. 390. 510. 873.), pre5cribed. Sub- sequently a course of Leamington or Cheltenham mineral waters, or the artificial Seidschutz, JMarienbad, and Carlsbad waters, and in some cases the Pyrmont and Spa waters, will prove of much benefit. The shower bath, upon getting out of bed, or the cold salt-water bath, will further tend to promote the digestive and defascat- ing processes. Costive persons, with a large or pendulous abdomen, should wear a broad belt or bandage around it, which will serve to promote the functions of the bowels. The patient should carefully avoid the remote causes of constipation, attend daily to the first intimations to stool, and have an early recourse to medicine when such intimations are delayed beyond the usual time, AVhen the bowels require the assistance of me- dicine to preserve them in a regular state, aloes may be combined with ma-tich and Cayenne pepper, or with a bitter extract, myrrh, and assaloelida, and taken daily about two hours before dinner. ?' BiBLlOG. AND Rei'ER. — fh'ppocra/es, Uifi vovtrm^ iii. Opp.v.p.4yi. — Ccelius Aurelianus, Opp.pp.243. 529. — Alex. andcr Trallcf, lib. ii. cap. 44. — Ballonius, Opp. i. p. 40. — Schenk, Observat. 1. iii. n. 285, — Salmuth, cent. i. obs. 24., cent. ii. obs. G.5. 98., cent. iii. obs. 26. ib.—Blankard, Col- lect. Med. et Piiys. cent. vi. No. 68. — Panarolus, Ja- trolog. Pentecost, i. obs. i. — Smctius, Miscellan. p. 561. — Bonet, Sepulchret, 1. iii. s. xiii. obs. 11. p. 589. — Triccn, Observ. Med. p. 2.5. and .56. — Morgagni, Epist. xxxil. de Alvi Adstrictione. — Ciil/isrn, in Act. Soc. Med. Havn. i. and ii. p. 329. — Aas/,-on>, in Ibid. ii. p 9. — Brendct, Observ. Aiiat. Med. dec. i. n. 20 A. F. IFaltficr, De Intest. Angiistia. Lips. 1731. — Qiielmalx, De Frictione Ab'lominis, &c. Lips. 1749. — Ltetitaud, Hist. Anat. Med. 1. i. obs. S.'92, 293. 301— A. Fonscca, De Tuenda \'a- letud Sancassani, in Hn/.'er, Bibl. Med. Pract. vol. iii. p. 601. — C. G. I.udtrig, Dc Caiisis Ohstructionis Alvinoe, 4to. Lips. 1770. — relit, Traite de Malad. Chirurg. t. ii. p. 101., et t. iii. p. 47. 103., et Mem. de I'AcaJ. de Chirurg. 1. p. 239. — Sauvnges, t. ii. p. 363 Devil/iers, in Journ. de Med. t. iv. p. 257. — Marleaude Grandvilliers, in Ibid. t. xiii. p. 226. — Laisoi), in Ibid. t. Ixxxvii. p. 3.54. — CtiUen, Materia Medica, vol ii. p. 496. — Rocschlniib, Magazin. b. iv. No. 7. — Er/inrd, Do Prajternat. et rara Obstipat. Alvi Causa, &c. Erf. 1790. — Stoeicic, Aniuis Med. vol. i. p. 12.5.— .B/c/c/;-, Med. Bemerkung.p. Vli.—Sloll, Kat. Med. par. ii. p. 135. vol. vii. p. 1.54. — tVeikard, Vermischte Scriften, b. ii. p. hi.— Starke, Klin.Iiistit. p. 174.— Bai/lic, in Trans. of Soc. for the Improvement of Med and Chirurg. Knovi'- ledge, vol. ii. No. 14. p. 174. — Meckel, N. Arrhiv. b. i. No. .3., ct Acad, de Berlin, &c. 1759, p. 30.— Stevenson, Edin. Med. Essays, Sec. vol. v. p 893. — Lorry, Hist, de Soc. de Med. vol. ii. — Burjigrave, Medicin. Piille, p. 232. — Cruick.ihank.i, Anat. of Absorb. Vessels, p. 119. — Bei'l, Memorab. Clin. vol. i. fasc. 1. No. 3. — TItcdcn, N. lic- merkung, b. iii. p. 76. — Ford, in Loud. Med. and Phy.sic. Journ. vol. iv. p. .390. — Kite, in Ibid. vol. viii. p. 164 Lcske, Auserl. Abhaiidl. b. i. p. 61 Ji'edel, Stark's Ar. chiv. h. vi. p. G73.—J(icdlin, Millenarius, No. 301. ct .536. — Sims, Observ. p. 20. — Sumeire, Journ. de Med. t. Ixi. p. 369 — (W(V'r,Manuel de Mcd.PratujUO, y.Wl —Moeller, in Baldingcr, N. Magazin. b. xx. p. 178 Osiuiider, N. suppositories ; soothe local and constitutional irritation, proscrvc the functions of the stomach, and give the al- kaline solutions with conium, belladonna, &c. — (From llie. Author's ihort Notes tj hiv Lectures delivered j'rom 18Ji4 to lb29.) — Pathology of. Denkwiirdigkeiten, b. i. st. 2. p. 130 Falconer, in Mem. of Med. Soc. of Lond. vol. ii. p. 72 _Sherwen, in Ibid. vol. ii. p. 9. — Kaehler, in Stark's Archiv. b. ii. st. 2. No. 2 — Grape7tgeisser, Versuche, &c. p. 100 Aliberl, in Mem. de la Sue. Mt'd. d'Emulation, t. i. p. 182. 443 nillan, Miscel.- Works by A. Smith, &c. Lond. 1821, p. 446. — Daniels, in Philadolph. Med.Journ. vol. v. p. 119. IVendt, ill Annalen des Klin. Institut. 1 heft Sechevcrci, in Journ. Gencr. de Med. &c. t. xix. p. G. — Hufeland, in his and Iliinly's Journ. der Pract. Heilk. Nov. 1S09, p. 130 — Portal, m Mem. de I'Institut. Nat. de France, 1S07. — Po7nma, in Journ. de Med. Contin. July, 1810, p. 74 — Spence, Med. Trans, of Coll. of Phys. vol. iii. p. 99 — Gerard, in Dimcaii's Ei\\n. Med. Comment, vol. x. p. 44. — Warren, in Ibid. p. 255 Helsham, in Ibid. vol. xiii. p. 2H2. — Bis/ioprick, in Ibid. vol. xx. p. 340. — Jiosack in Duncan's Ann. of Med. 1796, p. 310., and Lond. Med. Kep. t. xvii. p. 77 Moss?nan, in Ibid. 1797, p. 307. — Clarke, Trans, of Irish Acad. vol. vi. p. 3 E. Nome, Trans, of Soc. for Med. and Chirurg. Improvement, vol. ii. p. 182. — i?arfe)-, Observ. 39. — Korb, in Uichter's Chir. Bibl. b. viii. p. 120. — Mttrsinna, Beobach. b. i. p. 141. — Bateman, Art. Constipation and Costivcness, in Rees's Cyclopaedia. — Joerdcns, in Hufeland' s Journ. der Pract. Heilk. b. xvii. st. 2. p. Vl.—Elias, in Ibid. b. x. St. 1 , p. \\) during parturition ; and (c) during the first fortnight after delivery. They may bc- partial or general, most commonly the latter; and they may assume various shades of tonicity, from a state of tetanic violence to the more clonic form, characterised by alternating contraction and relaxation ; but they usually present very nearly the same phenomena as eclampsia — being attended by loss of conscious- ness, and recurring paroxysms, between which sensation is not restored. 28. A. Premonitory symptoms commonly usher CONVULSIONS — Complications op. 419 In the seizure ; but, in some cases, they are either absent, or so brief in duration, or so slight, as to evade detection. Chaussieii thinks that they are scarcely ever wanting altogether. The patient usually complains shortly — sometimes for several days — before the attack, of lassitude, depression, and a feeling of indisposition which she cannot well describe ; frequently of disorder of the stomach ; often of weight or pain in the head, or of drowsiness, vertigo, and sparks, or various dark or bright objects, floating before the eyes. These symptoms are renewed at intervals during a day or two, and are occasionally attended by embarrassment of speech. To these usually are superadded, shortly or just before the seizure, a change in the expression of the countenance ; partial or occasional failure of sigiit, or loss of sight; sometimes loss of hearing; haggard, va- cant, and fixed state of the eyes, with a dilated pupil ; ringing or other noises in the ears ; some- times most acute and splitting pains in the head, with a flushed neck and face ; generally sickness, pain, oppression, and anxiety, at the stomach ; thirst ; a full and quick pulse ; subsequently a slower pulse ; and swelling of the neck and countenance ; tetanic stiffness of the wrists ; cramps in particular muscles or parts ; twitch- ings of the muscles of the face ; shocks or shudderings through the frame ; altered respira- tion ; loss of consciousness ; and all the phenomena constituting the developed seizure. Dr. J. F. OsiANDER states that he has seldom observed a tumid state of the face and hands wanting as a premonitory symptom. If the convulsions occur during parturition, the pains often become feeble and frequent before the seizure, 29. B. The complete seizure. — To these succeed involuntary contractions of the muscles of the face and jaw, instantly followed by spasmodic succus- sions, or general convulsions of a violent or tonic character; sometimes approaching to tetanic, but commonly closely resembling eclampsia ; or the universal convulsions of the epileptic or hysterical paroxysm. The respiration is laborious, imperfect, sonorous, and hissing,- — frequently with foatviing at the mouth, — and thetongue is often protruded ; the eyes are injected, prominent, fixed, staring, or rolling ; the countenance and head tumid, red, or livid ; the limbs are strongly convulsed, and tossed about ; the heart beats strongly ; and sensibility and consciousness are entirely abolished. After a short time the convulsion subsides ; respiration becomes less laborious, and the countenance less livid ; but the comatose stupor continues, some- limes with slightly stertorous breathing; when, after an indefinite, but generally a short, interval, the spasmodic succussions and general convul- sions return as before, or with slightly modified severity or duration, and subside into stupor as before. Thus they may recur two or three times — more frequently, several or many times — when the patient either quickly awakes, uncon- scious of what has passed, as it from a slumber; or passes into a more comatose state ; or recovers partially ; sight and hearing, or speech, or both, being lost for a time. Or she may experience some one of the unfavourable terminations here- after to be noticed. 30. It may be generally remarked, that, upon the accession of puerperal convulsions, a flux of blood takes place to th? head and superior ex- tremities ; the veins of the lower limbs becoming proportionately empty, and the pulsation of their arteries being comparatively small and weak. The worst forms of the attack are often attended by a firm spasmodic constriction of the cervix uteri, preventing the expulsion of the foetus. M. Menard states, that, in the majority of cases of death by convulsions previous to delivery, the child has been found dead, the contraction of the features and extremities denoting that it had par- ticipated in the affection of the mother : this, however, wants confirmation. In some instances, the child has been unexpectedly born during the violence of the convulsions, as if expelled by them with unwonted celerity. 31. C. Modijications. — In persons of a nervous temperament, local pain or irritation, or even ex- haustion alone, may induce that state of cerebral afl^ection upon which convulsions are consequent, without the supervention of plethora, and active congestion of, or determination of blood to, the brain, characterising the great majority of cases. In these persons, the seizure is sometimes preceded by sinking, leipothymia, or fainting ; the counte- nance is neither tumid nor livid ; the eyes and face are unsuftused, but wild — often spaikling, staring, or rolled irregularly ; the pulse is small, hard, or constricted ; the urine is frequently copious and pale; and the agitations and tossings of the limbs greater, but less rigid or spastic, than in the mixed epileptic and apoplectic forms described above. In these cases, there is evi- dently cerebral irritation, or erethysm ; and, during the paroxysm, abolition of consciousness: but the patient generally either partially recovers her sensibility between its exacerbations or recur- rences ; or awakens out of this state entirely restored, and without experiencing any of those sequelae which are left by the more congestive attacks. In other instances, seizures occur, pre- senting characters intermediate between these ; but the first described state is by far the most common. From this it may be inferred that convulsions, in any of the three periods con- nected with child-bearing, will evince modified phenomena, according to the constitution, tem- perament, habit of body, predisposition, and pre- vious ailments of the patient. In the plethoric, epileptic, irritable, sanguine, and robust, it will present the characters of eclampsia or epilepsy — the m.ost common — or of apoplexy or coma ; and in the hysterical, the nervous, the delicate, &c,, it will assume these now noticed, which approach those of a severe hysterical attack. The con- vulsions which come on in the puerperal states from large losses of blood, are either of this kind, or of one closely resembling it, or intermediate between it and the epileptic. 32. V, Convulsions associated wiTir other jNIanifestations of Disease. — Convulsions may occur on the invasion, during the course, and at the crisis or decline, of a great number of acute diseases, particularly in children under eight years, about the period of puberty, and in females of a nervous and su-ceptible constitution. Their connection with irritations, &c., in the prima via, and with organic diseases in, or affecting the large nervous masses, is considered at anotiier part (§ 37. 44, 45.) ; but their association with some other maladies reejuire a more especial notice in a prac- tical point of view, a. The invasion of various E e 2 420 CONVULSIONS — Diagnosis of. acute distempers is often attended by convul- sions. Indeed, in some of the severe diseases to which young children are liable, particularly the exanthematous fevers and inflammations, convul- sions usurp the place of the cold stage or rigors which usher in these diseases in adults, and are generally preceded by coldness of the surface. When occurring in this manner, they should be regarded as indicating one of three things, viz. a morbid susceptibility of the nervous system, and predisposition to disease in the cerebro-spinal axis ; or an approaching developement of febrile reaction and of eruption, if the patient be of a sound constitution ; or else an imperfect evolu- tion of both, with a disposition to visceral irritation, inflammation, or effusion, particularly of the brain or abdominal viscera, if the habit of body be in fault, or if there exist any hereditary disposition, or vice remaining after previous disease. 33. b. The course of various diseases sometiares becomes associated with occasional or recurring convulsive seizures ; often of a partial, or of an irregular, peculiar, or anomalous cliaracter ; but frequently, also, sucli as those desci'ibed under general convulsions (§ 12, 13.). Children, and fe- males about the period of puberty, are most liable to these complications. We observe these seizures in hooping cough and croup ; in the remitting fevers of infants ; in mania, and febrile insanity ; in inflammatory and numerous organic diseases of the brain ('§ 37. 44. 45.) and spinal chord; in verminous complaints, and other disorders of the alimentary canal ; in organic lesions and calculi of the kidneys and urinary bladder ; and in states of nervous and vascular excite- ment or irritation of the female organs. In all these complications, eitiier active congestion or determination of blood to the head, or irrita- tion of the cerebro-spinai axis and membranes, or both these states, may be presumed to exist; active congestion being occasioned by impeded return from, with increased impetus of the cir- culation to, the brain and medulla oblongata ; irritation of these parts being generally propa- gated thither from some portion of the organic nervous circle, and through the medium of this circle, in which it had been primarily excited. We not infrequently observe convulsions at- tended or followed by mania and insanity, or even supervene in the course of these mental disorders. When this is the case, the convulsive seizure is commonly of a tonic and acute form, and approaches nearly to eclampsia and epilepsy, constituting the muniacal convulsions of authors. The convulsions which occasionally are observed in females, in connection with irritation of the sexual organs, are evidently owing to the propa- gation of disorder, through tlie medium of the organic or ganglial, to the spinal nerves, or to the chord itself, or even to the brain ; as well as to the extent to which these various parts of the cerebro- spinal system are thereby influenced ; and the various forms which the convulsions thus origi- nating commonly assume, are to be imputed to the existing state of local or general plethora, or to the degree of determination of blood to the hea 1 with wliich the superinduced irritation is attended. When we reflect upon tlic connection of the organic nerves with the spinal, and especially on the mode of that connection with the brain itself and tlie re-t of the cerebro-spinal system, we shall not be surprised that irritation of the extremities of the organic nerves, either in some one of the female organs, or in some part of the prima via, excites in one person, according to peculiarity of temperament, hereditary predisposition, habit of body, or state of vascular plethora, convulsions of a spastic or tonic character in the limbs and trunk, the cerebral functions being undisturbed ; in another person, convulsions either of a clonic or irregular form, consciousness also being retained ; or either of these forms, or both of them variously or singularly mixed, with partial or complete deprivation of sense and mental manifestation, or with a comatose or maniacal delirium superadded. Nor should it be a matter of wonder that irritation thus originating gives rise to various other abnormal nervous and mus- cular phenomena, such as catalepsy, ecstasy, hys- teria, &c. 34, c. Convulsions sometimes also usher in the crises of fevers and other acute diseases. This occurs most frequently in delicate or hyste- rical females, the abnormal contractions assum- ing a variety of forms, and often an hysterical character ; but it also not infrequently is observed in the male sex, especially in young and delicate persons. This association of convulsions is ge- nerally dependent upon a severe affection of the brain in these fevers, and attended by either coma or delirium ; and, although they may indicate a favourable change, particularly when accom- panied with, or immediately followed by, other critical phenomena, or when they put on the true hysterical form, yet they maybe the outward signs of an exasperation of the cerebral or cerebro- spinal affection, particularly when the mental faculties and general sensibility are not soon afterwards restored. Other morbid associations, as with worms, diseases of the brain and spinal chord, &c., may be considered as causes of con- vulsions rather than complications. 35, II. Diagnosis. — Simple convulsions may with difficulty be distinguished from epilepsy and hysteria. They cannot readily be mistaken for tetanus or rabidity. There are many cases, which the nature of the exciting cause, and the history of the case, show to be different from true epilepsy, and yet they cannot easily be distin- guished from it during the height of the pa- roxysm ; and the remark applies equally to the hysteric fit. In fact, convulsions present so many and so slight grades of difference, as to the spastic contraction of the muscles, and the fre- quency and rapidity of its alternation with relax- ation,— as to the jn-esence of, or immunity from, cerebral disorder, as well as to the nature and extent of such disorder, — are so intimately allied in respect of their causes, of the i)articular system of the frame upon and by which these causes produce their sensible effects, and of the nature of these effects as far as they become symptoms or signs of the particular lesion which occasioned them, that the difficulty of diagnosis is veiy great in many instances, excepting to the acute and experienced observer, whilst it is suflfi- ciently easy in others. — a. Generally, however, simj)le convulsions will be readily distinguished from epilepsy, by the retention of consciousness and general sensibility in the former, excepting in the height of the paroxysm in the severer or more plethoric cases, as in eclampsia and puer- CONVULSIONS— Terminations — Prognosis. 421 peral convulsions, in which both are lost ; by the general absence of the consecutive sleep or sopor of epilepsy ; by the irregular and frequently recurring form of tlie seizure ; by what is known of its origin and connection with obvious causes, and by the mode of its attack and of recovery from it. There are also various symptoms which, although common to eclampsia, puerperal con- vulsions, and epilepsy, are yet peculiarly - cha- racteristic of this last ; and we find, in adchtion, other phenomena which simple convulsions sel- dom present, particularly the frightful scream on the accession of the epileptic fit, tiie ante- cedent aura or peculiar premonitory signs, the very sudden and unexpected seizure when tiie aura is wanting, the expulsion of the seminal and prostatic secretions, as well as of the alvine excretions ; the more frequent occurrence of foaming at the mouth, and severer affection of tile respiratory muscles; the more leaden appear- ance of the countenance, and the more common recurrence of tlie paroxysm at a. stated time, than in convulsions, particularly after the first sleep, or when the patient awakens or is rising in the morning. (See Epilepsy — Ditignosis.) — 13. Con- vulsions are readily distinguistied from hpsteria, by the antecedent copious discharge of pale urine, the globus hystericus, and the borborygmi ; and by the alternate crying and laughing attend- ing the seizure of the latter. Some instances of simple convulsion, arising from irritation of the female organs, will, however, very nearly ap- proach, if not altogether run into, the hysterical character ; as we also see many cases of puer- peral convulsion differing but little from epi- lepsy, excepting in the frequent recurrence of tiie paroxysm in the former before the patient has recovered from tlie sopor consequent upon the antecedent fit, and in one or two of the diagnostic signs noticed above. — y. The continued or permanent nature of the spasms in all the forms of tetanus, and the absence of any tendency to obscuration of the general sensibility and men- tal faculties, during tlie whole unremitting dura- tion of this dreadful disease, are sufHcient diag- nostics between it and convulsions. — J. Rabidity catniot be mistaken for this affection, if the history of the case, the uncommonly increased sensibility of the whole frame, the dread of fluids, and unimpaired cerebral functions, characterising rabies, be attended to ; for, although convulsive seizures occur frequently in it, they are produced by so slight external or mental causes — by every attempt at swallowing liquids — that their nature and origin cannot be for a moment doubted. (See Rabidity.) 36. HI. Terminations or Consequences, and Prognosis. -^ J. Convulsions, in any of the forms now placed before the reader, may termi- nate, (a) in health; (6) in some other disease; or, (f) in imm.ediate dissolution, a. Their ter- mination in health may be marked by no peculiar phenomenon, beyond the non-recurrence of the seizure. In other cases tliey are followed by critical evacuations, particularly hagmorrhage from the nose, mouth, or ears, after which they may never recur, or which may produce an immunity from them for a time. Vomiting and diarrhoea, or tiie accession of the catamenia, may likewise prove critical. 37. b. They often ava followed by other diseases ; or rather the original disorder or change of struc- ture, of which convulsions are merely a part of the sensible and outward signs, may, from its increase, or extension to adjoining parts, occasion other or additional phenomena more or less inti- mately allied to convulsion, as palsy, apoplexy, coma, loss of speecli, or of sight, or iiearing, ciiorea, or mania, delirium, idiotcy, &c., each of which may pass into the otlier, or be variously associated with one another. Tims, loss of sight, Iiearing, speech, and idiotcy, may be the con- sequences in the same case. Also, either of these consecutive phenomena may arise from tlie cere- bral congestion, and its effects, produced by tlie frequent recurrence or by tlie severity of the fit, particularly wlien tlie respiratory functions are much impeded in it, and the system is plethoric and relaxed. My limits will not admit of illus- trations of these facts, either from my own ex- pt-rience, or from the other sources which are referred to at the end of the article ; but they are of common occurrence, and may, after con- tinuing for a longer or shorter time — in some cases for many years — in others for a very short period — either be recovered from, or terminate existence. In some cases, convulsions are fol- lowed by a state of leipothymia, trance, or complete syncope, which, when profound and continued, may be mistaken for dissolution, and endanger premature interment. There is reason to suppose that, in some countries where inter- ment usually follows death at a much shorter period than in Great Britain, this dreadful fate has overtaken the patient. In other instances, lethargy, or torpor, terminates the paroxysm, which, in rare instances, has been of long dura- tion, and also may be mistaken for death. ^Vhilst the convulsions of childhood more commonly give rise to, or terminate in, loss of one or more of the functions of sense, in chorea, in idiotcy, or in hydrocephalus ; those attacking adults are more disposed to pass into either apoplexy, coma, palsy, or mania : and whilst the convulsions of the former class of subjects are more frequently the consequence of irritations affecting the ab- dominal viscera, those of the latter, excepting in females, are more generally the result of disease within the cranium or spinal column, often at a certain stage of its progress. 38. c. Their terminaiioa in death takes place either through the intervention of one or more of the diseases noticed above as their consequences, or, more directly, from the extension of convulsion or spasm to the respiratory muscles, inducing asphyxy, or from an overwhelming congestion or effusion of blood in the brain. This sudden un- favourable change more commonly occurs in puerperal convulsions than in other forms, ex- cepting when they proceed from abscesses or tu- mours within the cranium. Death may also occur from accidental suffocation during the paroxysm. 39. jB. The Prognojis of convulsions depends chiefly on what is known of their causes, on the antecedent and consecutive phenomena, on the history of the case, and the degree in which the functions of the brain and nervous system are affected during and after the fit. a. If the convulsions occur in children, without fever or any primary or cerebral disturbance, and ap- parently from worms, disorder of the prima via, &c., a favourable opinion may be entertained, Ee 3 422 CONVULSIONS — Causes op. But when they are preceded by head-affection, by fever, followed by strabismus, stupor, or loss of one or more of the functions of sense ; when they are prolonged or recurrent ; or are followed by signs of any of the unfavourable terminations noticed above, much danger should be appre- hended. Indeed, all cases depending upon cere- bral disease are attended by more or less danger, which, in some instances, become most imminent, particularly when the symptoms of hydrocephalus are present. — b. In adult persons the prognosis is equally unfavourable, when tlie affection is evidently the result of cerebral disease, or of organic changes — and when the fits become more and more frequent, or severe, with more marked cerebral disturbance, either attending upon, or following them. On the other hand, when they are symptomatic of disorders of the prima via, or of the generative organs, a favour- able opinion may be entertained. — c. Puerperal convulsions, however, should never be considered devoid of danger, more especially when they oc- cur after delivery ; or in consequence of great exhaustion of vital power, or of uterine hae- morrhage. When they are slight, are unattended by stertorous breathing, or by paralytic or apo- plectic symptoms, and when parturition is so far advanced as to readily admit of its completion by art, less danger may be feared. But the prog- nosis of convulsions generally must be inferred from a careful review of the diversified circum- stances of individual cases, especially in respect of their remote and efficient causes, and of their disposition to terminate in either of the ways pointed out. 40. IV. Appearances on Dissection of FATAL Cases. (See Brain, § 4 — 133.), Epilepsy, and Spinal Chord. 41. V. Remote and efficient Causes. — i. The remote causes of convulsions axe numerous; but they often require a certain original or ac- quired predisposition of system to insure their operation ; and various influences which may only predispose to them in some persons, may even excite them in others. A. Predisposing. There is every reason to suppose that the off- spring may derive constitutional predisposition to convulsions from the parents. Persons of a ner- vous and irritable temperament, — of a delicate frame, and largely developed head (Desessartz), — of a relaxed and soft fibre, and plethoric vascu- lar system, — children whose fontanelles are very late in closing, — those who are naturally of a quick, sensitive, and unstable disposition, and wlioso physical and moral constitutions are readily impressed, — are predisposed by original conformation. Those infants who have experienced injury of the cranium during parturition (Smei,- lie) ; persons who have early, prematurely, or inordinately indulged in venereal pleasures — who have placed no restraint on their passions, particularly anger, — who have become debi- litated by any cause (Autenhietu), — who have had their cerebral organs unduly and too early excited, and before tlie process of developement was sufficiently far advanced; the present state of civilisation and precocious mental improve- ment; the greater irritability of the system ac- companying the epochs of dentition ; the irritable and plethoric states attendant upon pregnancy ; habitual determination of blood to the head ; previous attacks of convulsion, either before or after puberty, or in a former pregnancy ; at- tempts to conceal pregnancy, and the mental distress and shame attending it in unmarried women ; exhaustion of nervous or vital power by increased discharges, long continued pain, or want of sleep; all luxurious indulgences; too much sleep ; inanition and want ; prolonged lac- tation ; fluor albus, Sec. ; and certain electrical states of the air, by which the nervous system is influenced, and rendered more susceptible of im- pressions and excitement ; are the chief causes which generate a predisposition in the frame. It has been remarked by Dr. Ramsbottom, and other writers, that puerperal convulsions were most frequently produced during warm electrical states of the atmosphere. 42. B. The exciting causes of the various forms of convulsion are very numerous ; and they act in different ways in producing their effects. I have already stated, that irritation of a part of the or- ganic or ganglial nervous system will be trans- mitted by the communicating branches to the spinal nerves, and produce convulsive actions of the muscles they supply, without the brain expe- riencing any evident lesion ; whilst, in other cases, the irritation maybe conveyed to the brain, either directly by the organic nerves, or through the medium of the spinal chord, the cerebral func- tions suffering accordingly. But irritation or organic change of any of the parts contained within the cranium will also occasion convulsions, the general sensibility and mental manifestations being then more or- less obscured or perverted during the paroxysm or subsequently. These facts, which might be illustrated by numerous cases, the history and results of which 1 have attentively observed, naturally point to a division of the causes, Jirst, into those which act upon some portion of the organic nervous circle, or the viscera which it supplies ; and, secondlii, upon the cerebro-spinal system itself. But, although it is useful to make this distinction, particularly for practical purposes, yet it should not be over- looked, that irritations affecting the former would rarely be followed by convulsions, unless the latter possessed a marked disposition to disease, as far as regards increased susceptibility and proneness to experience alterations from the healthy condition of its circulation. 43. a. The exciting causes which act more immediately upon the organic nervous systetn, and through it upon the spinal nerves or brain, or both, are the following: — a. In infants and children, the retention of the meconium ; a mor- bid state of the umbilical chord ; unwholesome milk, or improper feeding ; acid or acrid sordes, and various diseases of the alimentary canal ; an overloaded stomach ; suppression or retention of the urine ; accumulated flatus, or morbid secre- tions, and the presence of worms, occasioning irritation of the bowels ; the ingestion of acrid substances — as very irritating purgatives (Gohl and Lentilius), or emetics (Riedlin), — acrid enemata ; noxious or indigestible substances taken as food ; acidity of the prima via ; dentition at either of its epochs, particularly cutting the eye and molar teeth ; the iri'itation of pained or carious teeth ; and calculi in the urinary organs, &c. (3. In persons about, or subsequently to, puberty ; and occasionally in children, organic diseases of CONVULSIONS — Causes of the stomach, bowels, or collatitious viscera ; af- fections or lesions of the heart ; constipation, colic, ileus, and intus-susception ; incarcerated or stran- gulated hernia (Ghaaf and myself); organic change of the kidneys, and suppression of urine ; manustupratio or inordinate sexual intercourse; and nervous and vascular excitement, orotherdis- eases of the female organs, particularly the ovaria and uterus. — y. In puerperal females, a loaded stomach or disorder of this organ brought on by indigestible or unsuitable articles of diet, particu- larly shell-fisli (Clarke) ; rapid or premature distension of the uterus during pregnancy ; long- continued and exhausting labour ; excessive, fre- quent, and inefficient pains; distension of the urinary bladder, during or after parturition ; a loaded state of the bowels, excessive depletion or flooding; venereal indulgences during the last two months of utero-gestation. 44. h. The causes which act more directly on the cerebrospinal nervous systemnre — a. the improper exhibition of narcotics, and of spirits and various quack medicines, by the lower classes, to infants and children ; the admission of a strong light, or the impression of loud noises on very young infants ; the continuance or excess of pain ; in- juries received on the head during, or subsequently to birth ; fear, and sudden fright, or fearful dreams, j — B. In adults more especially, and in childien j also, the most common causes of this description are, the influence of imagination and imitation ; i the action of the sun's rays on the head ; exces- sive mental labour or anxiety ; extreme bodily sufferings, or long watching ; injuries of the brain, spinal chord, or nerves; irritation of nerves by tumours, abscesses, or by ligatures in operations, or injuries of them by wounds and accidents ; in- cipient curvatures of the spine (Wiciimann, Bo- net) ; the impression of excessive or long con- tinued cold, or of a cold bath ; the influence of particular odours on some constitutions; the abuse of spirituous liquors ; the influence of various poisonous substances on the nervous system, be- longing to the animal, vegetable, and mineral kingdoms, as nux vomica, and nearly all the class of narcotics ; deleterious gases, and metallic fumes, as the nitrous oxide, sulphuretted hydrogen, &c., the vapours of mercury and lead ; and the irri- tating and inflammatory operation of many mineral preparations and acrid vegetables (see Poisons) ; all emotions of the mind which excite the nervous power, and determine tiie blood to the head, as joy, anger, religious enthusiasm, excessive desire, &c. ; or those which greatly depress ihe nervous influence, as well as diminish and derange the actions of the heart, as fear, terror, anxiety, sadness, distressing intelligence, frightful dreams, &c. ; nu- merous lesions of the encephalon or its membranes, particularly eff'usions of fluid, abscesses, tumours, ossific deposits, and various other adventitious form- ations— indeed, nearly all the organic changes described in the articles on the Brain, Epilepsy, and Spinal Chord ; also exhaustion from pre- vious disease, particularly by large losses of blood (Schroeder) ; inanition and want (Amatus Lusr- TANus) ; the erect position suddenly assumed; lightning (Giiapf.ngiesser) ; abscesses about the neck ; the suppression of eruptions and discharges, particularly on the head or from the ears ; the syphilitic poison ; and repulsion of gout or rheu- matism.— y. In puerperal females, many of the 423 causes now mentioned are especially productive of convulsions, particularly anxiety or distress of mind in unmarried females; violent slrainino- during labour; andsudden changes from the hori- zontal to tlie sitting or erect postures. 45. ii. The efficient causes have been partially alluded to. Their nature may be in some mea- sure inferred from what has been stated above. It seems evident, from a careful consideration of the exciting causes, of the character and progress of the symptoms, and the lesions usually detected on dissection, that convulsions arise from several pathological states, the grosser or more palpable parts of which only we are enabled to recognise by the senses; and that, in addition *to these, a certain susceptibility of the nervous system, par- ticularly of the cerebro-spinal centres, is requisite, nevertheless, to the full development of the seizure. It is extremely probable that convul- sions frequently arise from some considerable change in the state of the circulation within the cranium, and that such change may be either active cerebral congestion, — in some cases con- nected with general plethora, but in others not thus associated, and, even in a few, accompanied with marked deficiency of blood, — or local or general anaemia. Moreover, it may be presumed that the seizure very ofien is accompanied with but little disturbance of the cerebral circulation or func- tions at its commencement; and that it chiefly de- pends upon irritation, in some manner induced in the organic nerves, and, through them in the spinal nerves, either partially or generally. We have no proof of the circulation of even the spinal chord or its membranes being disordered in these cases, al- though it may be afl^ected in convulsions, either primarily or consecutively. In cases which more manifestly proceed from disease within the cra- nium, and that of an organic kind, as from tumours, abscesses, aqueous effusion, &c., it by no means follows that the circulation in the brain is gene- rally, or even at all, either accelerated or con- gested, although these lesions may safely be as- sumed in many instances. In some cases even of organic change, the general amount of circulation in the head seems, as far as we can judge from symptoms, much below the natural standard, and yet convulsions will supervene ; whilst in others, signs of inflammatory action of the membranes are apparent. In many cases, moreover, judging from the states of pre-existing disease, from what is known of the operation of various causes, and from the symptoms connected with the head, — the weak and small pulsation of the carotids, the antecedent fainting or leipothymia, the low temperature of the scalp, and pale, sunk, and pinched features, — it may be inferred that the vital endowment and the circulation of the brain are momentarily deficient, both in activity and in quantity. 46. Therefore, while I subscribe to the justice of the aphorism of Hippocrates, that convulsions arise from repletion or inanition as respects the circulation within the cranium, I would qualify it, and add, that they often originate tlius, but that either of these states forms a part only of the changes that produce them, even when most irre- fragably present, — that in many cases the circu- lation in the brain is not materially disturbed, whilst the spinal nerves are affected either by ir- ritation conveyed to them from the organic ner- vous system, or from the spinal chord itself, more Ee 4 424 CONVULSIONS — Treatment. frequently the former, — that even when the brain is disordered, general convulsions will avise only when the disorder extends to, or influences the parts more immediately related to, the locomotive actions of tlie body, as the spinal chord or its mem- branes,— and that we cannot contemplate the origin of convulsions in any vv'ay, and leave out of view changes primarily induced in the organic nervous or ganglial system — which changes will more readily produce, than be produced by, dis- ordered circulation in the cerebro-spinal, organs, Wc know that the movements of the foetus in utero are automatic — are the consequence of irritations affecting the organic rferves, extending to the spinal nerves, and through them, inducing motions of the limbs. To the production of these, any change in the brain or spinal chord is not required ; and a great many cases of convulsion have a similar origin, the difference being only as to the grade of irri- tation relatively to the susceptibility of the patient, and to the effect produced. As to the opinion entertained by the older humoral pathologists, from Galen to Willis, that a morbid state of the fluids also occasions convulsions, some im- portance may be attached to it. ^Ve do not, how- ever, find convulsions much more prevalent when the blood is manifestly morbid, unless in those cases where a previous, and at least an ecjual, change has been produced upon either the organic, or the cerebro-spinal nervous systems. The convul- sive movements that occur in common and pesti- lential cholera, in malignant fevers, in rabidity, and in organic lesions of the kidneys, with suppression of urine, are proofs of this position. That, hovvever, a morbid state of the blood sometimes constitutes a concurrent proximate cause of certain diseases, in which convulsions ei;her incidentally occur, or form a part of the circle of advanced phenomena or effects, may be admitted, in the absence of suf- ficient evidence to the contrary ; for, when the blood itself is primarily changed, we may with reason infer that convulsions will sometimes mani- fest themselves as a part of the effects thereby pro- duced upon the nervous system ; but I believe that convulsions seldom arise from this cause only. 47. VI. TreatiMent. — i. Of Convulsions GENERALLY. The means of cure in all cases of convulsions are directed with the view, 1st, of subduing the fit, when called to a patient labour- ing under it: and 2nd, of preventing its return. A. To subdue tlie paroi'iisiit,h is necessary to have prompt recourse to active measures: but these should not be employed indisciiminately, and without taking quick cognisance of the cause, and the existing pathological states as far as they may be readily ascertained. The circumstances principally to be observed by the practitioner, arc the juesence or absence of active cerebral congestion and sopor, the existence of general vascular plethora, the temperature of the head and lov/er exliemities, the pulsation of the carotids, and the character of the countenance and of the convulsive motions. These may be ascer- tained in a very few moments, and at the same time that iiK[uiry is being made into the cause of the seizure, and the peculiarities of the case, as respects the age, constitution, and habits of the patient. 48. (I. A person in convulsions ought to be ])laced so as to breathe an open cool air, and to facilitate the restoration of one of the earliest functions disordered ; arid no more attendants be permitted than are absolutely necessary. Those susceptible of, and liable to, nervous affections, should not be allowed to remain in the same room, or even in the same house, with the patient while in the fit.— 6. When the habit of body and the cerebral symptom^, &c., present no contra- indication, general 'or local blood-leiting, or both, •should be resorted to,, and carried as far as cir- cumstances may warrant. When the cerebral congestion is very active and extreme, the jugular vein may be opened ; but the depletion should never be pushed too far, with an expectation of stopping the convulsions ; nor should it ever be cariied to deliquium, for the system may be thereby injured, and a return or immediate recur- rence of the seizure be favoured by it. Revulsive bleedings, as from the feet while they are held in warm water, may be preferred, if the seizure be connected with difficult or suppressed menstru- ation. Local depletions, in other instances, are best practised by cupping behind the ears, par- ticularly in children, and upon the nape of the neck, and between the shoulders. In other in- stances, when the biain is not affected, — when the head is cool, and the carotids are pulsating neither more fully nor more strongly than natural, — the state of the spinal column should be care- fully enquired after, by pressing a warm sponge along and between the vertebra; ; and the abdo- minal regions and the evacuations ought to be daily examined. If signs of inflammatory action exist in either of these quarters, particularly if they be connected with plethora, general and local depletion — preferably the latter, when plethora is wanting — should be resorted to. But there are many cases, especially those produced by copious evacuations, by inanition, and the exhaustion of painful and protracted disease, where depletion would be most injurious; and there are inter- mediate grades, in some of which local blood- letting might be either beneficial or of no advan- tage, according as the case approaches nearer to the one extreme than the other. When the con- vulsions a.rc partial, then local depletions are to be preferred. 49. c. There are certain states of convulsion, in which it at first seems difficult to determine as to the propriety of resorting to blood-letting !in any way. One of the uiost common of these, is that characterised by a pale and somewhat sunk countenance, and by tonic convulsions. 'I'his appearance may mislead the practitioner, if he do not examine carefully into other symptoms. If, in addition to those, the carotids pulsate strongly, the tempeiature of the head be increased, the pupils contracted, and the brows knit, we should suspect inflammatory iriitation of the arachnoid — notwithstanding the absence of all plethoric or asthenic signs — and resort to depletions, and the means about to be noticed. (See also Bh,\in — Treatment of Injlannnation of its Membranes.) Another state sometimes occurs, with very violent general convulsions, a broad, open, throbbing, and frequent pulse ; pale countenance and surface, often with sopor or delirium, or both. 'I'hese symptoms may mislead the inexpeiienced, and depletions — occ.isionally the very cause of the mischief — may be inqiroperly (Mniiloyed to re- lieve it. But when the history and symjitoms of the case arc more minutely examined, wc shall CONVULSIONS find precisely that state which is described in the article Blood ($^3 — 60.),- and that, instead of congestion, there is generabanaimia, with cerebral irritation, combining with the physical condition of the brain, to determine to it tiie greater part of the blood in the system.' In other cases, there is apparently ana3mia of the brain, at least at the commencement of the fit; and either conscious- ness is retained, or it is lost from the slate of-the cerebral circulation. These forms of seizure may be called amcmiai ; inasmuch as they arise either from a general deficiency of blood, or from anajmia of the brain, although the vessels of this organ soon become partially congested from the impeded respiration, and interrupted circulation through the lungs and heart, at tlie commence- ment of the paroxysm. In these, a very opposite treatment to depletion is required. 'J'he ob- servations of Latham, Hai.l, Goocn, jVortii, and the author, on this important practical topic, have, however, induced the practitioners of the present day to resort to blood-letting in convul- sions in a much more discriminating manner than formerly. 50. d. Next in importance is the judicious employment of cold and heat — of cold in the form of cold allusion on the head and spine, and of heat in that of warm bath or semicupium. An appropriate use of these is more generally serviceable, and often less dangerous, tlian deple- tions. The cold affuiion to the head, and, in cases where there seems to be irritation of tiie spinal envelopes, along the vertebra? ; and cold, in the form of epithems, evaporating lotions, pounded ice to the head, when convulsions are produced by inflammatory action in the brain or spinal chord; are among the chief forms in which this agent is admissible. The cold bath, although advised by Currie, Loeffler, Beau.mks, Bay- NARD, and others, is, in my opinion, a hazardous experiment during the paroxysm, and sometimes even in the interval. The unrm bath, or semi- cupium, is frequently of much service, and par- ticularly when there is either high nervous irri- tation ; a dry harsh skin, or cold surface or ex- tremities ; and my experience accords with that of IIiiLBRONN, Henrischen, Doerner, and Stutz, respecting the propriety of adding a quantity of the .fixed alkalies, or their carbonates, to the water. When the head is much affected, either by inflammatory irritation of the membranes or active congestion, cold affusion, or cold epithems or lotions, may be employed whilst the patient is in the warm bath, or is using the semicupium or pediluvium. In slight cases of convulsion, the aspersion merely of cold water over the face, head, or neak, is often of service. Large draughts of cold water were recommended by Hoffmann ; and they, as well as water ices, and cold clysters, have been several times employed by myself with much benefit. Cold injections are praised by Lanchans and IMahx. Cold affusion, cold aspersion, and cold epithems, have been prescribed by C'uurie, Dipont, Doemi.ing, and others ; but the two former were usually directed by them to the surface generally, instead of to the head, — a circumstance which accounts for the disuse into which it had fallen, when the practice was revived some years since by the author. 51. e. If the patient can swallow, and the musclesof the jaw are not much affected, crt(/(«)((e — Treatment. 425 medicines should be given by the mouth ; but in most instances it will be preferable to delay them until after the seizure. But I have under no circumstances been prevented from directing a cathartic and antispcismodic enema to be thrown up. Either of F.131 — 136. may be employed and repeated, if it be not retained, as is frequently the case. When purgatives can be taken, a full dose of calomel, either alone or with jalap, fol- lowed soon afterwards by an active cathartic draught or mixture, consisting of senna, tincture of jalap, carminatives, and antispasmodics, paiticu- larly the preparations of ammonia and camphor, is, upon the whole, the- most appropriate. J5ut under every circumstance the operation of these should be promoted by enemata. When we wish to produce an active derivation from the head and spine, as well as alvine evacuations, the croton oil, elaterium, ol. terebinthinaj, &c., may be employed. But, where the object is chieffy to bring away offending secretions, and other causes of irritation, and at the same time to allay disordered action in the prima via, calomel, jalap, rhubarb, and senna, are, perhaps, the best purgatives we can employ. Their action will, in all instances, be much increased, and a marked change be often produced in the disease, by an occasional dose of the ol. terebinth, and ol. ricini, assisted by the enemata already recom- mended. If convulsions arise from ivor7ns in the intestines, anthelmintic purgatives, during both the paroxysms and interval, should not be omitted. Calomel may generally, with due address, be exhibited during the fit, and subsequently other anthelmintics may be given. Bergius and Barton prefer the Spigelia Marylattdica in such cases ; but the other means adopted in verminous disorders may be employed according to cir- cumstances. Emetics are sometimes of service, when exhibited upon the first intimation of the seizure, particularly if there be indications of gastric irritation from offending or noxious ingosta, and acid sordes, or if the paroxysms assume a periodic form. Sciienck, Scii.effeb, Rigel, Conradi, IIufei.and, and Smith, advise them chiefly in such cases. Thom recommends them to be exhibited to the nurse, when convulsions attack infants. 52. f. Antispasmodics are sometimes produc- tive of instant relief, when employed in large doses, early in or upon the first intimation of the fit, particularly when it arises from debility, or irritation in the prima via, or morbid nervous susceptibility; but they seldom can be taken in the paroxysm, unless it be slight, or arise from exhausting causes, and then they are often of great service, especially if they be com- bined with restoratives and opium, conium, or hyoscyamus. The ffithers, camphor, musk, assa- foetida, valerian, the preparations of ammonia, bismuth, zinc, &c., are amongst the most effica- cious in these cases. When inflammatory irri- tation seems to exist in the membranes of the brain, they are obviously contra-indicated ; but congestion of a passive nature, especially when the pulsations of the carotids are not strong or hard, and the temperature of the head is not increased, should be no reason for omitting them. An extensive experience, however, of the effects of the spirit of turpentine in convulsive diseases, has convinced me that it is the most efficacious 426 CONVULSIONS and the safest antispasmodic that can be em- ployed for their removal. It' it be given in doses so large as to act as a purgative, an I'cpniculi I)ul. 5 jss. ; Spirit. Ammnn. I'atid. HI xv. ; Pulv. Uliei gr. xvj. ; Syrup. Pajiaveris 3 ij- l''iat Mist., rujus'.ciipiat coch. unum, vol duo minima, tertiis vcl quartis lioris. No. l-")!). ]\ Olei Uiciiii 3 iij — ^ ss. ; Olei Terebinth. 3j.— 3ij.; tere cum Vitel. Ovi, et adde Aq. Fconicnli 5 ss.— 3 j. ; Syrup. I'apaverislet syrup, llosie aa 3 ij. M. Fiat Mist., cujus sumat partem quartam vcl tertiam, ter- tiis vel quartis horis. 69. h. Clysters, containing valerian, assafcetida, or a terebinthinate substance, triturated with the yolk of egg, and any of the carminative waters, to which oleum ricini or ol. oliva; may be some- times added, are the most appropriate to those cases. Much discrimination is required as to the choice and continuance of cold applications to the head, particularly if the warm bath or semi- cupium be simultaneously resorted to. These combined means should never be left to the dis- cretion of a nurse, at least without the personal superintendence of the practitioner in the first instance. In general, as soon as the temperature is reduced, and the features become pale and shrunk, or the fonlanelle (if unclosed) level, or at all depressed, whether the convulsions, or sopor, when present, disappear or not, the application of cold to the head, in any form, should be left off, to be again resumed when the symptoms requiring it recur. 70. c. During dentition, or even before the teeth approach the margin of the gums, free scarijications ought to be practised, and repeated as soon as the scarified parts cicatrise, otherwise the obstacle to the passage of the teeth will be thereby increased. If general or cerebral ple- thora be not present, or has been removed, and the bowels have been fully evacuated, any of the alkaline or earthy carbonates, with aqua focni- culi, or aq. pimenta;, asther, camphor, &c,, with the extract of conium or hyoscyamus, or the syrup of poppies, or small doses of laudanum, may be prescribed with the view of soothing the susceptibility and irritability of the frame at this period. Form. 347. 442. 865. have been ordered by me very generally in such cases, at the Infirmary for Children. In very young in- fants, convulsions may be occasioned solely by the retention and accumulation of acid and acrid sordes in the prima via. These are readily re- moved by a dose of calomel, followed by olea- ginous or other purgatives, the semicupium, and clysters. Tissot and Sharp state that they have been produced by the retention of the meconium, owing to spasmodic stricture of the sphincter ani. This is, however, a rare occurrence. Emollients, oleaginous laxatives, the semicupium, clysters, and anodyne liniments, are appropriate to such cases. It has been repeatedly contended for by most of the older, although denied by many mo- dern writers, that the anxieties, the more violent passions, and the irregularities of the nurse, may change her milk so as to disorder the digestive organs, and thereby give rise to convulsions in delicate infants. This fact is established by re- peated observation. I perfectly agree with Mr. North, who has taken a very judicious view of this subject, (hat it should never be overlooked. The obvious remedy in such cases is to change the nurse; and, if this cannot be done, to remove as far as may be the cause of disorder ; to promote her digestive and excreting functions ; to tran- quillise or subdue any mental disturbance or febrile action that may affect the state of the milk, and to prescribe for the infant aperients with soda or ammonia, or other aniacids and antispasmodics. I have often employed the oxide of zinc or trisnitrate of bismuth with soda, or the pulvis creta; compos., and either the pulvis ipe- cacuanhaj comp., or small doses of conium or hyoscyamus, with much advantage in these cases ; or simply the bi-borate of soda in camphor mixture, or a(i. fccniculi. CONVULSIONS OF CHILDREN— Tbeatment. 431 71. d. The cold bath is a very doubtful re- medy in the seizure : it is much less efficacious than the cold affusion on the head ; and when the child retains its consciousness, it even some- times aggravates the mischief. Of the recom- mendation of Dr. Bronn, to employ gradually increased pressure on the epigastrium during the fit, I have had no experience : it, however, de- serves a trial. 72. e. Of the use of blisters in convulsions, as well as of alkaline rubefacients, as the liquor am- monia?, no favourable idea should be entertained, as they require the utmost discrimination, and are far from being unattended by risk : for, al- though they will often cut shoit the paroxysm, yet they will also occasionally produce so violent irri- tation and inHammalion as to be rapidly followed by sphacelation of the integuments. This is liable to happen particularly in ill or insufficiently fed, in delicate and irritable children ; in those of a gross or fat habit of body, who have been al- lowed to feed upon the richer sorts of animal food too exclusively ; in the state of vital ex- haustion observed in the latter stages of dis- ease, as well as in the early periods when the pulse is very quick, irritable, or sharp, the skin dry and burning, and the cerebral organs much excited or oppressed ; — under such circumstances, I have usually directed a liniment composed of equal quantities of the liniment, saponis et opii (jjrf. Pilar.), and of tlie liniment, terebinthinae, or either of F. 308. 311. to be rubbed on the epigastrium and abdomen, or along the spine. TnuNBERG advises the cajuput oil to be applied to the epigastric region during the fit ; Herz directs the animal oil of dippel to the same region, and Abrahamson the oil of rue. Either of these will frequently cut short the paroxysm, but I can assert, from a very extensive experience, that the liniments I have recommended are the safest and most efficacious. 73. /. When convulsions occur in the invasion of any of the exanthemutous fevers, or upon tlie retrocession of the eruption, the treatment must depend, in a great measure, on the habit and strength of body, and the extent to which the brain is affected. If cerebral congestion or irri- tation, with general heat of surface exist, local depletions, the cold aflTusion on the head, whilst the patient is plunged in a warm bath, to which some vegetable or mineral alkali has been added, cooling aperients, cathartic injections, the tartar- emetic ointment and solution F.749. rubbed on the spine, and diaphoretics, are generally most service- able. After the bowels have been freely evacuated, the carbonate of soda and nitrate of potash, given in mucilaginous vehicles ; the spirit, aetheris nitrici, with the liquor ammonia; acetatis in camphor julep, &c.; may be prescribed. If the skin be cool, and the pulse weak, or if the fit have occurred after the disappearance of the eruption, salt and mustard may be put in the bath ; and if the coun- tenance be pale and collapsed, and the cerebral functions not materially disturbed, warm and cordial diaphoretics, as the preparations of ammonia, camphor, serpentaria, &c., exhibited from time to time. Frictions of the surface, immediately after the patient is taken out of the bath, will generally promote its good effects. 74. g. If convulsions occurin the course o( hoop- ing cough or crmip, we may conclude that conges- tion, or inflammatory irritation of the membranes of the brain, has supervened, and should direct local depletions, the cold affusion on tlie head, semicupium, and the carbonates of the fixed al- kalies, with opium, hyoscyamus, or belladonna, in minute doses, unless the patient is already much reduced by repeated or large evacuations, when we may infer that the convulsive seizures are connected with anaemia, and should prescribe the treatment already described in relation to this state (i 55.). 75. h. The convulsions which occur so fre- quently as a consequence of chronic or severe bowel complaints, and of exhaustion from other diseases, and which have been too frequently imputed to dropsical eflPusion in the ventricles, require cordial antispasmodics, tonics, and light nutritious diet. Although sometimes attended by more or less effusion, arising from the phy- sical condition of the cranium and its contents, and serving to prevent any vacuum from being occasioned by the deficiency of blood in the cerebral vessels, yet the convulsions should not be viewed as proceeding from tlie effused fluid, but rather from the irregular and imperfect supply of blood to the cerebral structure. 76. i. The seizures that follow great losses of blood in children are generally characterised by too active determination of this fluid to the cerebral structure ; and require the head to be kept cool and elevated, the bowels to be acted upon, and re- storatives, antispasmodics, cordials, and tonics to be administered with the extract of poppies, conium, or hyoscyamus, according to the peculiarities of the case. 77. h. If convulsions follow the disappearance or repulsion of chronic eruptions, we should dread the existence of inflammatory irritation of the membranes of the brain or medulla oblongata or spinalis, with a tendency to serous effusion. Local depletions, the warm bath ; frictions of the surface, particularly of the part whence the eruption had disappeared, with irritating lini- ments ; the use of sinapisms, and deobslruent purgatives, as calomel, &c.;'are chiefly to be con- fided in. 78. /. When the seizures have recurred several times, particularly in infants, and are attended by dilated pupil, squinting, slow pulse, &c., their connection with hydrocephalus may be inferred. In such cases, even local depletions should be employed with caution : but in many instances they may still be resorted to, in small quantitj' ; and followed by alterative doses of calomel or hyd. cum creta, diuretics, small doses of digitalis with spirit, ajther. nit. and the use of the liniment (F. 31 1.) to the head and loins both in the fit and in the interval. 79. iJ. The preventive treatment, — a, in ple- thoric,iat, and gross-living children, should chiefly consist of a proper regulation of diet, as advised by Beaumes. Farinaceous food ought to be adopted, with only an occasional indulgence of the less stimulating meats. ]\'o rational plan of treatment, however, can be attempted with the view of prevention, without strict reference to the remote and proximate causes of the afl^ection ; the former of which should be carefully avoided, and the latter removed by suitable treatment. When we detect cerebral irritation, or determin- ation of blood to the brain, or active congestion. CONVULSIONS, PUERPERAL — Treatment. 432 cupping, as already directed ; the daily affusion of cold water on, and a constantly cool state of, the head ; a moderate, but continued, action on all the secreting and excreting organs ; tranquil- lity, and the abstraction of all excitement of the mind and senses ; a bland and low diet ; the use of revulsants, and warm clothing on the lower extre- mities ; are the most appropriate remedies. 80. b. In very delicate children, where no evident inflammatory irritation witliin the head exists, a tonic treatment is obviously requisite. The sesquioxide or ammonio-tartrite of iron may be given, either alone, or with other antispas- modics, or any of the other preparations of this metal. The sulphate of quinine, or the prepara- tions of cinchona, with liq. ammoniac acetatis, and a little of any of the compound spirits of am- monia; suitable diet, attention to the state of the bowels, and change of air, will also be of service. Calomel, in fiequently repeated doses, either alone or witli purgatives or anodynes, has been most injuriously resorted to by practitioners, upon the mistaken notion that convulsions are always connected with irritation within the cranium, and that this medicine alone can remove this slate ; whereas, if calomel be prescribed in small and frequently repeated doses, it will actually increase the susceptibility and irritability of the body generally. When, however, it is given in full doses at distant intervals, or only occasion- ally, and either combined with jalap or some more active purgative, or followed by cathartics and enemata, it is a valuable remedy. Where the bowels are thus judiciously acted upon from time to time, and particiilarly if this be accom- plished by a terebinthinated draught, tonics, com- bined with antispasmodics and anodynes, will be of the greatest benefit, especially if there be no disorder of the cerebral functions to forbid their exhibition. The sulphate or oxide of zinc, or the sulphate of quinine, or the oil or other preparations of valerian, or assafoetida, musk, &:c., with either conium, hyoscyamus, or the extract of poppy ; the Ionic decoctions and infusions.with the alkalies ; and various other remedies already recommended in the intervals (§ Gl. 75.), may be severally employed, according to circumstances, after purgatives have been duly prescribed, and the stools have become natural. 81. c. When we have reason to infer that the convulsions proceed from intestinal luorms, calomel with camplior, and the otlier cathartics noticed above ; the occasional exhibition of an active terebinthinate draught, followed by ene- mata, containing aloes, assafoetida, camphor, &c., and subsequently, by the preparations of iron, as well as any other of the remedies and modes of combining them described in the article \\'oums, may be directed. It is generally remarked by the German writers, that worms never form in the alimentary canal previously to weaning, if the milk be healthy ; and the observa- tion is confirmed by my experience. It is there- fore, after this period, that convulsions can be referred to this cause. 82. (/. 'I'lie marked hereditary and amftiln- liontil lendenctj to convulsions in the same family of chihlien, and the very frequent connection of this affection witii cerebral irritation, or with dropsical effusion in the ventricles, or between the membranes, in such cases, have presented difficulties to every practitioner. I believe that the disease, when occurring in this manner, has been too frequently ascribed to inflammatory action, and a too lowering treatment adopted. Mr. Hill recommends the arsenical solution, with musk, in these cases ; and I doubt not their utility, if carefully employed ; but other tonics and antispasmodics, particularly the weaker pre- parations of bark or calumba, with tlie liquor potassaj, and small doses of conium, or syrup, papav., or opium, if the child be not too young, and if the watchfulness or erethysm of the brain be present, will be found still more serviceable, especially if the head be kept cool, the secretions and excretions carefully promoted, and the kidneys occasionally excited by the addition of diuretics to the tonics, as the spir. a;ther. nit., digitalis, syrup, scillas, &c„ or by the application of a suitable liniment (F. 311.) to the loins. In several cases of tliis description, I have directed, after other means had failed, and while tonics, as now prescribed, were given, tlie hair to be cut off, and the liniment to be rubbed upon the head immediately after the cold affusion. In cases connected with inflammatory irritation of the membranes, local depletions, the cold affusion, &c. (§ 67.) should precede the above treat- ment. 83. e. The diet and regimen of childi'en that have once experienced a seizure of convulsions, ought to be carefully attended to. The stomach ought never to be overloaded, either by the mother's milk, or by its ordinary food, which should be always recently prepared, and easy of digestion. As crying often brings back the seizures in infants and young children, it should be prevented as much as possible. When tlie bowels have been sufficiently evacuated by the medicines suggested, from one to three grains of the hydrurgyrum cum creta, either alone, or witli the carbonates of the fixed alkalies may be given at first every night and morning, and afterwards every night, or every other or third night. Tlie head should be always ele- vated ; and whilst in bed or indoors, it ought to have no other covering upon it than that with which Nature has provided it. On no occasion, should the warm fur or beaver hats, which are very improperly worn by children, be used ; nor ought the mental powers to be prematurely or inordinately excited. In a word, the head should be kept always cool, the mind tranquil, the lower limbs warm, and the bowels open. A free, tem- perate, and healthy atmosphere, with occasional change of air is also as necessary as medical treatment. 84. iii. Treatment of Puerperae Convue- sioNs. — The more frequent occurrence of convul- sions in a first pregnancy, during a protracted labour in those who have experienced them pre- viously ; the period of the puerperal state, and the progress of the labour and slate of the os uteri when they do occur ; the characters they asuuic — whether those of eclampsia, of epilepsy, of hys- teria, or of simple clonic convulsion; the causes which induce them, the circumstances connected with them, and the fact that they, more than any of the other forms of convulsion, are the result of active (letennination of the blood to the head — which, however, is merely the effect of irritation primarily seated in the abdominal viscera; are CONVULSIONS, PUERPERAL — Treatment. 433 nil to be taken into consideration in tlie treatment of them. The intentions of cure are the same in this as in the foregoing states of convulsion ; and they should be promptly fulfilled. 85. A. In order to cut short the seizure, — a. After having resorted to suitable means to protect the tongue, as the introduction of a cork between the teeth, iStc, blood-letting from the arm, but preferably from the jugular vein, when it can be easily performed, should be employed, and carried at once to a decided extent relatively to the vigour and habit of body of the patient ; and it should be repeated after a short interval, if the convulsions recur, and there be no circumstances to forbid it. Simultaneously with the flow of blood, or immediately after it, the aflusion of cold water or the application of a bladder of pounded ice on the head, and the exhibition of ten grains of calomel, and from five to ten grains of camphor, previously reduced to a powder by a few drops of spirit, with or without an equal quantity of musk, and sliortly afterwards of two or three drops of cro- ton oil, should never be omitted. These medicines may readily be administered, by mixing them in sweet butter, and introducing a portion i'rom time to time over the root of the tongue, upon the end of an ivory letter folder, or upon the handle of a spoon. A cathartic and antispasmodic enema (F. 141. 119.) should also be thrown up without delay ; and immediately repeated, if it be re- turned. The combined effects of these will sel- dom fail of producing a solution of the paroxysm. Aly experience of the excellent effects of cam- phor is fully confirmed by Dr. Hamilton, al- though CnAussiEH expresses an unfavourable opinion of it, and of all heating antispasmodics ; and the recently published observations of Mr. JMiciiELL are strongly in favour of musk, vvhich he gives in doses of from one to two scruples. Depletion may be carried fuither in those states of the disease which assume the characters of eclampsia, or which are attended by great fulness about the head, or stertorous breathing, than in almost any other malady. Chaussier advises, after general depletion has been practised, local bleeding from the nape of the neck and occiput, or from the epigastiic region. 86. 0. As to the propriety of prescribing opium in puerperal convulsions, very opposite opinions have been given. Petit, Hamilton, JMerhimax, and Deweks consider itmostinjurious ; Manning and Bland recommend it, and Leake and Burns, with a judicious discrimination, state, that when the disease is not accompanied with fulness of the vessels of the head, it may be exhibited with ad- vantage after biood-letting. In this decision I con- cur, and add, that it should always be given either with camphor, as directed by Stoerck, or with the carbonates of the alkalies, as advised by Stutz and Bruninghausen, or with both ; more particularly when the convulsions occur from excessive irritability, or previously to the period of full gestation, or after delivery, or when they assume chiefly the characters of iiysteria. Rinck applies it to the abdomen, and Hufeland to the soles of tiie feet. 87. y. Some difference of opinion exists as to the propriety of exhibiting emetics in this disease. Denmas is in favour of them, but IMauriceau, Chaussier, and Hamilton condemn them, unless after blood-letting, and when the seizure has Vol. I. been excited by improper ingesta, — the only cir- cumstances under which, in my opinion, they should be given, and in which Dr. Blundell also recommends them. Of the good effects of active cathartics there cannot be the least doubt. I have always observed, as Dr. Merriman has stated, that the stools procured by them are morbid and offensive. 88. J. The next practical point of importance is, whether or not the patient should be imme- diatehj delivered ; and on this the sentiments of the most eminent accoucheurs are at apparent, rather than actual variance. No person will deny that the state of the uterus is connected with the cause of the seizure ; therefore it would obviously seem requisite to remove that state. But the objectors reply, that convulsions also occur after delivery, when this state of uterus no longer exists : I have, however, never met with any, of several cases of convulsions after delivery for wliich I have prescribed, that did not arise from analogous causes of irritation, viz. an over-distended urinary bladder, the retention of the placenta or of coagula in the uterus, or the accumulation of fascal or irritating matters in the bowels. I therefore would adhere to the opinion I have often given, namely, if the above means have failed, and if the labour be so far advanced as to enable the accoucheur to deliver immediately without force or injurious interfer- ence, then let it be done. If the labour be not so far advanced, but yet the os uteri is consider- ably dilated, then the membranes may be rup- tured, particularly if they be very tumid, — if, indeed, they have not been already ruptured, which is often the case, — and either full doses of the hiborate of soda ('c)j. to 3 ss.) given, or the ergot of rye. If the os uteri be rigid or undilated, the former of these will be preferable. If, how- ever, the labour has not proceeded far, then any interference, excepting by the exhibition of medicinal substances, may be more injurious than beneficial. La Motte, Osborne, Leake, Hamilton, Dubois, Ashwell, Nauche, jMi- GUEL, Burns, Osianders, father and son. Duces, and Ramsbotham, are favourable to as early delivery as possible without violence ; whilst Bland, Gar'thsiiore, Baudelocque, Hull, Gardien, Denman, and Blundell, are against forcible dilatation of the os uteri, and attempts at delivery in the early stage of labour. After all, the difference is more in words than in intention ; for the general object is to hasten delivery, without injurious interference, if the labour be so far advanced as to render the attempt prudent; and those who have espoused either side have stated their opinions with such excep- tions and limitations, and with so little precision, as to leave the subject nearly where they found it, and to render it no easy matter to ascertain under what circumstances they would either have recourse to art, or trust to nature. When the treatment already recommended fails, or is fol- lowed by an exasperation of the convulsions, — which will very seldom occur if it have been judiciously directed, — then I conceive that the active interference of art should be called to our aid. There is, perhaps, no subject on which opinions are stated to be so much at variance as on this, — each succeeding writer placing those of his predecessors in opposition, even where no real Ff 434 CONVULSIONS, PUERPERAL —Treatment. difference exists, and thereby bewildering the in- experienced, in order that he may have the credit of giving a decision respecting it. 89. £. Chaussieu recommends, in rigidity of the uterine orifice, the application of a pomade con- taining helladniina, with a view of rehixing the spastic contraction, wiiich, he states, is not Hmited to this part, but extends to the vvliole of the organ. I beUeve, liowevtr, that the body of the womb is generally free from spasmodic contraction. This preparation consists of two drachms of the extract of this narcotic, softened with an equal quantity of water, and triturated with about an ounce of prepared lard. A piece, the size of a small nut, is to be introduced into a female syringe, open at the extremity, and conveyed to the os uteri, where it is to be applied by pushing onwards the piston. In about half an hour the rigidity subsides, and the labour proceeds. Of this practice I have no experience, M. Chaussier discourages any other attempt at dilatation of the os uteri, as irritating the parts, and inducing a recurrence of the con- vulsions. 90. ^. I have never omitted, in any case treated by me since 1819, to employ the effusion of a stream of cold water on the head, and the injection of turpentine clysters, sometimes with camphor, assafostida, or valerian, and the results have been most satisfactory, — a much less quantity of blood having been detracted than is usually required in such cases. I am not aware that either of these two remedies had ever been em- ployed in puerperal convulsions, until long after I had given publicity to the practice, — a prac- tice which I know to have been recommended very recently by those, who, at that time, ridi- culed it. In the more rare stales of the disease, which are attended by a weak quick pulse, pale features, and hysterical symptoms, enemata con- taining valerian, assafoetida, or camph ir, are very serviceable. In those which assume the comatose or apoplectic characters, hliaiers applied to the nape of the neck, and siimpisms to the ankles and calves of the leg;, are useful adjuvants of the measures already recommended. 91. >). In all cases occurring previously to, during, or after parturition, the state of the blad- der, and of the bowels, ounht to be carefully enquired into. Early in 1823, I was called to the Queen's Lying-in Hospital, by the house pupil, to a patient who hud been seized with puerperal fever on the second day alter delivery, but was convale-;cent from it, when she was at- tacked by convulsions, brought on by a distended urinary bladder. I found that the urine had been drawn off, and that she had been blooded once largely. The case was one of extreme severity and dang(-r ; the convulsions were unre- mitting, and attended by profound coma and asphyxy. The vein was re-opened, and, while the blood flowed, a stream of cold water was kept playing upon the vertex, and, at the same time, a clyster with turpentine and camphor was thrown up. Thus, the three most powerful — the almost only, remedies to be confided in, were simultaneously in operation. The patient rapidly recovered. Purgatives were given by the mouth, upon the solution of the convulsions ; deglutition liaving been entirely abolished during the whole seizure. This was one of the earliest cases in which I liad ventured ujjon the simulUiiieous employment of these powerful agents, the use of them in succession having been generally adopted by me previously. I allude more particularly to this case, because of its uncommon severity ; of its occurrence soon after a most dangerous dis- ease, as late as nine days after delivery, in a pub- lic institution, and at a time when my public recoimiendation of the practice apparently re- ceived but little attention ; although it will not now be looked on with scepticism. 92. &. 0( other remedies but little may be said, as they should be viewed as auxiliaries merely. I have already expressed myself favourably of camphor (§Q5.). Burns condemns it ; but, when exhibited after depletion, and at the same time with the cold affusion on the head, and cathartic and antispasmodic clysters, it is a valuable me- dicine. Under the same circumstances, musk, assafoetida, and the other antispasmodics, will also be of use ; for all risk of their injurious action on the brain is prevented by the cold affusion, whilst they co-operate with the terebinthinate in- jections to excite the contractions of the body of the uterus, and remove spastic constriction of its neck. Of the ergot of rye, my experience is limited. I have given it only in one case of this disease, and then it was combined with biborate of soda, — a medicine undeservedly fallen into dis- repute-^ but which I have prescribed for many years. The labour in that case proceeded rapidly, and the patient recovered. Much difference of opinion exists as to the effects of, and propriety of giving, the ergot in convulsions. If the os uteri be dilated, and the external parts free from rigidity, blood-letting, the cold affusion, and cathartic injections, having been actively but unsuccess- fully employed, there can be no doubt of the pro- priety of exhibiting it. Opinions will always be at variance as to the benefits derived from sub- stances recently introduced into practice ; for, as all medicines are remedies only from theii appro- priate use, experience of their operation is required to asceitain the circumstances in which they are truly of service. In a case of puerperal convul- sions— I believe the first in which the ergot was exhibited — Dr. BRiNCKLEgave it after the means usually adopted had failed. Twenty minutes after the first dose had been taken, uterine action came on, and the patient recovered. It is strongly recommended by Dr. Waterhduse, of Philadel- phia, and by Mr. Miciiei.l. 93. (. In cases of unyielding rigidity or callo- sity of the OS uteri, Van Swieten advised an in- cision to be inade through its margin. Dubosc, and, subsequently, Lauverjat, BoDiN,and Cou- Toui V, who considered it perfectly justifiable after blooddetting, the warm bath, and other means usually employed, had failed, have had recourse to this operation. ]\L Coutoui.v has recorded four cases (two of which are quoted by M. Mi- guel) in which it was resorted to ; three of these recovered. The death of the fourth he imputed to the circumstance of it having been too long de- layed. M. N.(uciiE also favours this operation in the above circumstances, especially if emollient and narcotic injections into the vagina have failed to relax the rigidity. 94. K. The warm hath, and emollient _/(»;;ie/it- ations, followed by the use of an anodyne liniment on the abdomen, have been recommended by Denman and Nauche j and the tepid bath by Capuron, after bleeding has been practised. Much advantage will accrue from assiduous fric- tions of the abdomen, more particularly if tliey be performed with an anodyne and antispasmodic liniment (§ 53, 54.). independently of the use of a warm or tepid bath ; for either of these can seldom be used with advantage in the circum- stances of puerperal patients. In every case the hair should be cut closely oft'. This may be done in a very few minutes ; but shaving the head is merely a loss of time. Bunxs, Rvan, and Clarke advise tlie application of a blister on tiie head ; but I be- lieve that it will be required only in extreme cases ; it certainly ought to be ventured upon only in such, where the coma is profound, and the pulse weak, and the patient sinking. The advantages stated to have been derived by Dr. Clarke from acrid cathartics, and clysters, are confirmed by my own experience. If the convulsions occur immediately after delivery, the placenta should be removed, and the existence of internal hjemorrhage enquired after — if at a later period, the state of tlie urinary bladder and bowels, as well as of the womb, de- mands attention. In ail such cases, active puroa- tives and cathartic clysters are especially required, but the choice of them should be made with due reference to the state of constitutional power, and to the presence or absence of cerebral congestion, or of exhaustion and nervous susceptibility. 95. X. When the convulsions attack epileptic females, they generally have all the characters of epilepsy or eclampsia, generally with unremitting sopor and stertorous breathing passing almost into aspiiyxy ; and they require the treatment described above. When they occur in hysterical females, they may also assume the same forms, and demand the same method of cure ; or they may present the features of simple hysteria, particularly bor- borygmi, quick pulse, &;c., with very slight cere- bral affection. In these latter cases, the nervine remedies mentioned in the next paragraph will be adopted with advantage, especially after the cold affusion on the head. Cold enemata may be also thrown up, as advised in Hysteuia. In the ma- jority of these seizures, neither bleeding nor arti- ficial delivery is required, unless cerebral conges- tion supervene, or the patient be strong or plethoric. 9G. fx. Convulsions in the puerperal states may occur from great exhaustion, from want and inanition, and losses of blood. In these, the prac- titioner should trust chiefly to the cold affusion, performed only momentarily ; to the keeping of the head cool and elevated ; to sinapisms on the lower extremities; to the exhibition of camphor, ammonia, the vegetable alkalies, and musk, with small doses of opmm, or of the aethers with hy- oscy.'imus or coniuni ; to the administration of valerian, assafoetida, or turpentine clysters; to the warm bath ; to anodyne frictions of the abdo- men ; and to as early delivery as may be safely attempted ; the vital energies being supported by gentle cordials during the remissions. If the seizure be complicated with hcemorrliage from the uterus, or hasmatemesis, prompt artificial delivery, tlie turpentine clyster in the first instance, and turpentine draught in the second, are the most certain means. 97. B. The prevention of puerperal convul- sions is of great importance. 'J'he means calcu- lated to attain this object can be put in practice only when the premonitory symptoms (§ 28.) ma- CONVULSIONS, PUERPERAL — Treatment. 435 nifest themselves. — a. If these indicate fulness of the vessels of the head, bleeding from the arm, or cupping on the nape of the neck, will be ne- cessary ; and in every instance the liowels are to be freely evacuated. There are few cases of the disease, at whatever period it may occur, entirely unconnected with fa;cal accumulations; and al- though this state of the bowels may not excite the attack, it certainly remaikably disposes to it. Cathartics should therefore be given by the mouth, and their action promoted by clysters. Dr. Blundell advises an ipecacuanha emetic to be taken in the first instance ; and, where there is a loaded or disordered stomacii, this practice may be adopted. In addition to these, the warm bath may be used ; and if, notwithstanding, signs of active determination continue, the cold affusion on the head, or cold applications, should be also resorted to, either previously, at the same ti)pe with, or subsequently to, the warm bath. Dr. Home and Dr. Blundell favour the exhibition of digitalis in such circumstances. 98. b. If the premonitory symptoms be charac- terised by leipothymia or sinking, rapid weak pulse, particularly of the carotids ; coolness of head, sunk features, &c.j — the internal use of camphor, or musk, ammonia, assafoetida, the aethers, the warm bath, with small doses of opium, purga- tives, sinapisms, blisters, and the turpentine fo- mentation applied on the abdomen, are the most approved means of prevention. 99. c. If the patient have had two or three attacks at some former period, and if the above preventive treatment have not rendered the acces- sion of the disease less probable. Dr. Blundell advises the membranes to be punctured. 100. C. During c()»i;a/esce«ce, the states of the urinary bladder and of the bowels should be care- fully watched, and evacuated ; the diet regulated ; and both body and mind kept tranquil. If cere- bral symptoms continue for some time afterwards, the head should be preserved cool, and sponged with cold water night and morning, and a blister applied to the nape of the neck, and kept open for some time, whilst a course of eccoprotic and de- obstruent purgatives is continued for several days. BlBLIOG. AND KeFER. — i. CONVULSIONS IN GENERAL. Hippocrates, Aplior. sec. vi. ^ Si', vol. i. p. 101. edit. Vanaer Linden. — Galen, De Locis Affect. 1. iii. c. 6. — Oribasius, Synop. 1. viii. c. 16. — Paulus JEgineta, 1. iii. c. 19.— Zaca/w* Lusitanus, Prax. Hist. 1. i. cap. 11., ). v. cap. 2. — Willis, De Pathologia Cerebri, cap. i. i. — Baillou, Op. omnia, vol. iv. p. \oi. — Amatus Lusitanus, cent. vii. cur. 11. {Inanition.) — Bonet, Sepulch. 1. i. sect. xiii. observ. 26. Morgagni, De Sed. et Caus. Morb. ep. x. art. 21. Hoff. mann, De Cunvulsionibus, in Oper. vol. iii. p. 31., et Supp. vol. ii. p. 2. — Collbatch, Sur le Gui de Chene, in Malad. Convuls. Paris, 1719. — Bsynnrrf, On Hot and Cold Baths, &c. Lond. 1722. —J. Juncker, De Morb. Spasmodico-Coiivulsivis, &c. Hals, 1739. — Monro, in Edin. Essays and Observ. vol. iii. p. 55\. — Schroeder, De Convulsion, ex Hsemorrhagia nimia oriundis. Marb. 1752. — Mar.r, De Motibus Convulsivis, &c. 4to. Hala?, 1165. — Stall, Rat. Med. par. iii. p. il2. — Stoerck, Do Stramonio, Hyoscyamo, &c. Vien. 1762; et Ann. Med. vol. i. p. 1.5 — IVedenberg, De Stramonii Usu in Morb. Convul. Ups. Ylli. — Sidrcn, De Stramonii Usu in Malis Convuls. Ups. 1773; et in Act Med, Suec. t. i. — Whi/tt, Works, -ito. p. 582.— //owe, Clin. Exp. Hist, and Diss. «.c. Svo. p. 15.J. — Evans, in Med. Observ. and Inquiries, vol. i. art. 11. — Gulbrand, in Act. Hog. Med. Hann. b. i. p. 26. Bell, in Edin. Med. Comment, vol. i. p. \1Vi .— Goodsir, in Ibid. vol. i.p. 4b/. — Warburg, Medic. Beobachtung. No. 10. — Clarke, in Jled. Facts and Observ. vol, viii. p. 275. — Pal- las, Reisen durch Russland, ii. p. 387. — Vnzer, in Hamb. Mag. b. viii. p. 369. — Bergius, Mat. Med \). 121. — Ariiot Edin. Med. Essays, &c. vol. vi. p. 634.— J. Smit/i, Ed. Med! Comment, vol. iii. p. 316.— P. Dugud, in Ibid. vol. v. p. 84. — White, in Ibid. vol. vi. p. 330.— Armstrong, in Ibid, vol ix. p. 301. — Aiders, Edin. Annals of Med. vol. vii. p 406 Ff2 43G From abscess of the ear) ; et Horn's Archiv. b. i. p. 329. — Conrad), in 'Hufelarul's Jouin. der Pract. Heilk. b. vii. St. 2. p. 6.—Hargens, in Ibid. b. vii. st. 1. p. IH.—Doer- ner, in Ibid. b. xv. st. 4. p. 94. — Henrisc/ien, in Ibid. b. XV. St. 4. p. 79. — Mic/iaelis, in Ibid. b. iii. p. 344. — Wiedemann, in Ibid. b. vi. p. 418. — Slriwe, in Ibid, b. xxiii. st, 4. p. S. — Sc/imalz, in Ibid. b. xi. st. 4. p. 169. — lieil/ironn, in Hiifehind und Harles N. Journ. der Ausl. Med. Chir. Lit. b. ii. st. 1. p. IHl.—Powe/, in Trans, of College of Phvs. of I>ond. vol. iv. art. 8. — Lathnm, in Ibid. vol. vi. p. 248. — Cornish, in Loud. Med. and Physi- cal Journ. vol. xxxi. p. 373. — Loefflcr, in lUchter'iChw. Biblioth. b. viii. ^.IS'i.—Krebs, Medicin. Beobachtun- gen, b. ii. heft 2d. — Sumeire, in Journ. de M^d. t. xxi. p. i>'-2i.—Diipont, in Ibid. t. xxxii. p. ]30.—Parn/, Mem. of Med. Soc. of Lond. vol. iii. art. 8. {Compression of the carotids.) — Bianchi, in Brera's, Comment. Medici, dec. i. t. ii. art '2.— Grapengiesser, Versuche, p. 9S. — Plen/.; in Abhandl. der Joseph-Acad. b. i. p. 318. {Ipecacuanha.) — Thunberg, De Oleo Cajeputi. Ups. 1797. — Herz, Briefe, St. 1. art. \. — Abraha7nson, \n, Meckel'?, N. Archiv. b. i. St. 3. ait.2\. — Huf eland, Bemerkung. iiber Blattern, &c. p.5i9. — Fran!tfurter, Med. Wochenbl. b. v. p. 229.— Sauary, in Diet, des Sciences Med. t. vi. par. ii. p. 197. — P. Jolly, in Diet, de Med. et Chirurg Prat. t. v. p. 473.— Naumann, in Encvclopad. Worterbuch der Med. Wis- sensc-h. b. viii. p. 341. — Thackeray, in Med. and Phys. Journ. vol. x. p. 410., and vol. xii. p. [){)S.— Barton, in Ibid, vol. viii. p. 428. ; Edin. Med. and Surg. Journ. vol. iii. p. 441. Clarke, in Ibid. vol. v. p. 2o8. — Hill, in Ibid. vol. v. p. 318. Thomson, in Ibid. vol. xiv. p. 614. [Dissections in.) — Haygarth, Of Imagination as a Cause or Cure of Dis- orders. Bath, \V,W. — Portal, Anatomie Medicale, t. iv. p. 69. et seq. [Results of Dissections in.) — Dessesartx, in Journ. do Med. t. xlvii. p. 114. — Rinck, in Stark's Archiv. b. V. p. 3S9. — Kortiim, in Hnfeland's Journ. der Pract. Arzneyk, b. iv. p. 381. — Cazals, in Journ. Gener. de Med. Dec. 1810, p. 371. [Bismuth.) — Schacffer, in Huf eland's Journ. der Pract. Heilk. Feb. 1810, p. IdS.—Gebel, in Ibid, b. xvii. St. 3. p. 103. [Musk inlarge doses.)— Berge,'mMe± Chir. Rev. vol. xxv. p. 501. — Denny, in Ibid. vol. xxvii. p. 485. Lee, in Lond. Med. Gaz. vol. xxi. p. 11. ii. CowuLSioNs OF CniLnREN. — Harris, De Morbis Infantum, p. \m.— Rosen, Traite de Malad. des Enfans, ;ivo. Beaumes, Traite des Convulsions dans I'Enfance, 8vo. Paris, 1805.— Cap//;-on, Des Maladies des Enfans, 8vo. Paris, 1813, yt.Wl .—Gardieu, Traite de Malad. des Enfans, t. iv. ; D'Accouchemens, 3d ed. p. 239. — J. Clarice, Commentaries on the Diseases of Children, 8vo. p. 80. ( Too cxclusiveli/ referred to cerebral irritation.)— Jacqiies, in Journ. Gener. de Med. t. xxix. p. 280. — Bronn, in Ibid. t. xxxi. p.iBl. — Piorry, De I'lnitation Enecphal. des Enfans. Paris, 1823. — f7H(/c;-!/'00(/, On Diseases of Children, by Merriman. Lond. 1827, p. 9.i3. — Brachet, Sur les Convulsions des.Enfans, 8vo. Paris, 1824. [A good book, luith too partial a leaning to cerebral irritation.) — J. North, Practical Observat. on the Convulsions of In- fants, 8vo. Lond. 1826. [An able and judicious work.) iii. Pleuperal Convulsions. — J. i,pa/.-f. On the Acute Diseases of Females, &c. 6th edit. p. 338. (Convul.from licsmorrh. and inanition ivell treated of.) — Manning, On Female DLseases. Lond. 1775, p. 357. — Deinitan, lii- Irod. to Practice of Midwifery, 5th ed. \). 569.— Hai/iill,,ii, Edin. Ann. of Med. vol. v. p. 318. — Coutouly, iu Juurn. CJener. de Med. t. xxxii. p. 157. — Fritx, De Convuls. «;ravid. et Parturientium. Wirceb. 1810. — Michaelis, in Siebold's Lucina, b. vi. p. 37. — Briick7na7in, in Horn's Archiv. Jan. 1811, p. 10. — Gasc, Memoires sur diveis Points d'Accouchemens. Paris, 1810. — Gardien, Traite Complet d'Accouchein. t. ii. p. 418 Stutz, Michai-lis, Wiedemann, and Bruninghausen, in Hufeland's Journ. &c. b. X. No. 4. ; and in Lond. Med. and Phys. Journ. vol. V. p. 473. and 5.57. — J. F. Osiander, Deutsche Zeit. schrift f. Geburtskiinde, b. ii. St. 3. p. 538 — J. L. Boer, Abhandl. und. Versuche Geburtsliuf Inhalts, &c. .'v-c. 1791, li. iii. p l'.)2 —Hufcland, Journ. der Pract. Heilk. Dec. IKIG. — M'agner, De Eclampsia Kxquisita in Partu. Morb. 1817. —J. Clarke, in Trans, of Irish College of Phy.«. t. i. p. .3nl.— Merriman, On Difticult Parturition, ^vith Remarks on the Manageui. of Labours, 8vo. Lond. 1820, p. 135 Deivees, in .\mer. Med. Record, No. iii.; and in .Johnson's Jled.. Chirurg. liev. June, 1820, p. 128. — Brinckle, Philadelphia Med. Journ. vol. vi. p. 12C. — Goupil, in Journ. des Progrfes des Scion. Med. t. iii. p. Ifil. — Diiges, in Rev. M.'d. t. i. 1826, ]). .'JTS. ; et Manuel Ob- htet. Paris, 18.'30, p. 27.5. ; et Diet, de Med. Prat. t. vi. p. ,537. — Chanssier, Sur les Convulsions qui altaq. les Fenimos Enceintes. Paris, IH^i. — Miguel, De Convulsions chcz les Femines Enceintes, cu Travail, &c. 8vo. Pari.s 1S24. —Blundrtl, Lectures, in Lancet, vol. xiv. p. 484. et 510 — Burns, Principles of Midwifery, (Ith ed. p. 484. — 7f//i7M, Manual of ."Midwifery, 2d ed. ]). 285.— Michcll, On Dif- ficiilt Parluiitioii, and the Use of Ergot of Rye, &c. 8vo. WZK—Nauchc, Des Maladies prop, aux Fcmmes, ^-c. 8vo. J'aris, 1829, )>. 449. CORI'UI-ENCY. Sec Oue&viy, COUGH — Causes OF. COUGH. — Syn. B^^, Gr. Tifssis, Lat. Bei, Good. Pneusis Tussis, Young. Der Hiisten, Germ. Tou.v, Fr. Tossa, Ital. Classif. — 2. Class, Diseases of the Respi- ratory Function ; 2. Order, Affecting the Lungs (Good). II. Class, III. Order {Author). 1. Defin. Violent and sonorous e.xpxilsion of air from the lungs, preceded, rapidly followed bi/, or alternating loith, quick inspii-ation. 2. I. Pathologv. — Dr. Cui.len and several other nosologists have considered cough as chiefly a symptom, which undoubtedly it is most fre- quently ; but I agree with Dr. Young and Dr. M. Good in believing that it is entitled to be viewed on some occasions, as an idiopathic affec- tion. Dr. Good, however, has ranked it as a genus, and comprised under it various affections, which are either merely slight forms of Bronchi- tis, or the results of organic changes in the Lungs, and wiiich I have treated of in these articles, and in those on Bronchohriicea, Ca- tarrh, and Influenza. He has, moreover, sub- divided it into more varieties than can easily be recognised iu practice, and has viewed Hooping- cough as a species of the genus, instead of a distinct disease. 3. Causes. — Cough, in either of the forms about to be particularised, commonly attends dis- orders of the air-passages, and of parts in their vicinity, particularly of the larynx ; also those of the lungs, and their membranous coverings ; and sometimes diseases of other organs by which the respiratory functions are affected sympathetically — or rather, from continuity of tissue or nervous communication. It is thus occasioned by affec- tions about the fauces, tonsils, pharynx, and neck ; by the irritation of dentition ; by diseases of the oesophagus, particularly when inflammation and ulceration of this part extends to, or penetrates, the membranous part of the trachea (Kappel- HouT, ]\Ir. Byam, and myself) ; diseases of the spine and its contents (Wichmann) ; by creta- ceous or calcareous formations in the ramifica- tions of the bronchi (INIorgagni, Bonet, Baillie, Portal, and myself in several cases, two of which occurred in gouty subjects) ; by all or- ganic changes of the thoracic viscera ; by the accidental passage of foreign substances, solid or fluid, into the air-passages; by the lodgment of the eggs or larvae of insects in the same situation (VoGEL and Percival, &c.) ; by the irritability of parts attendant upon the nervous temperament and debility; by the influence of irritation and imagination, — a cause which did not escape the observation of the acute IMontaigne; irregular or misplaced gout ; the irritability of the parts con- tinuing some time after measles, or infinnimations of the air-passages or lungs ; disorders of the di- gestive organs, particularly the stomach and liver, &c. (WiNTHER, Stein, Percival, &c.); by ac- cumulations of bile in its receptacle ; by the irri- tation of worms ; by the repulsion of cutaneous eruptions, and the healing of old sores, and sup- pression of chronic or accustomed discharges. From this enumeration it is evident that cough is chiefly a symptom of numerous pathological states, which will be found very fully desciibed under different heads, as indicated above. The epidemic cough noticed by some writers falls under the article Influenza. In the act of coughing, the COUGH — Causes — Treatment. 437 lungs are passive; and in the idiopathic states of tlie disorder they are not organically affected ; the disorder being chiefly seated in the trachea, laninx, and vicinity. In very many cases, the irritation occasioning the cough exists chiefly in the posterior fauces and pJiari/iir, and extends no further than the epiglottis and rima glottidis. 4. i. A. Dry Cough occasionally occurs in an idiopathic fonn, — a. From exposure to cold in any form ; the attendant symptoms not amounting to complete Catarrh ; and it may, or may not, in a very short time terminate with slight mucous ex- pectoration. AVhen, however, it arises from this cause, it usually runs the course described in that article. — b. It is occasionally produced by acrid or acid fumes and gases, or by various foreign sub- stances inhaled, or accidentally passed, into the trachea, and from several of the other causes enumerated above (§3.). — c. It also, in some cases, — first noticed by jMontaigne, and well de- scribed by WnvTT, — presents a strictly iiervous character, particularly in nervous, hysterical, and irritable persons. — d. In those especially, and also in feeble or delicate constitutions, a short, frequent, and dry cough is sometimes met with, without any disease of the lungs, air-passages, or other organs ; and the only change that can be detected is slight redness at the margin of the soft palate, or in the posterior_/W»«s ; sometimes only in tiie phanjiix ; and occasionally near the ton- sils ; but this is not uniformly, although frequently, observed. Here it is obvious that the irritation of these parts extends to the glottis, or to the epi- glottis only ; and that it is eitiier strictly local, or connected with slight derangement of the stomach and prima via. In the former case it is idiopathic, in the latter symptomatic, or at least a complicated ailment. 5. B. Dry cough is more frequently symptom- atic— a. Of the first stage of diseases of the larynx, trachea, and lungs; of organic changes of the large blood-vessels of the chest ; and sometimes of complaints of the more superior of the abdominal viscera. — b. It is frequently oc- casioned by elongation of the uvula, and the irri- tation this part produces about the root of the tongue and epiglottis. But when the uvula is elongated, there usually is also more or less co- existing irritation about the posterior yizufes and pharynx, extending to the glottis or epiglottis. And it should be, moreover, kept in view, that these ailments are principally dependent upon, even although they may not be always produced by, disorder of the stomach and digestive organs generally. — c. In many instances, also, it will be found that the cough is owing to irritation of the mucous surface of the stomach and xsojiliagus, altjiough it may not extend so far as to be ap- parent in the pharynx, or be so severe as to occa- sion redness of this part. — d. Cough is often produced by diseases of the liver, ditid by collections of bile in tiie gall-bladder and hepatic ducts. In many of such cases, the cough is severe and spasmodic, often very obstinate and of long dur- ation; the symptoms of hepatic disorder being sometimes so slight as to escape detection, unless the attention of the practitioner is awakened to the connection; the chief indications of its exist- ence being the loaded or furred tongue, pains about tlie diaphragm, fulness at the epigastrium, and indigestion. — e. Lastly, dry cough is often occasioned, in young and delicate patients, by the irritation of worms in the prima via. The more particular consideration of these associations will be found in the articles on the diseases of which the cough is merely a symptom, 6. ii. HuniiD Couoii, — a. may follow upoa the preceding ; or it may occur primarily from the usual causes of catarrh. In such cases, it is merely a slight form of that affection, the matter expectorated being mucous or serous, and the cough unattended by manifest febrile or con- stitutional disturbance. This form of cough is very liable to recur, or become chronic, m deli- cate persons, during the winter (uinter-cough') ; or from vicissitudes of season and weather ; and, like the former variety, the irritation exciting- it may be chiefly seated in the pharynx and vicinity, or in the larynx and trachea. In many cases the serous, or sero-mucous secretion, following the cough, entirely proceeds from the fauces and vicinity. — h. In old persons, however, it is se- creted chiefly by the bronchial surface, and is then, particularly in its more severe forms, the affection described under the name of Bronchor- rh'Xa. — c. Humid cough is generally less frequent, but more prolonged, and recurs in severe par- oxysms. It is sometimes complicated with rheum- atism and gout. It also presents the same pathological relations as described in connection with the dry variety ; but it is not so often symp- tomatic of diseases of the abdominal viscera, as the foregoing. — d. In the old and weak, humid cough is usually very severe, owing chiefly to the want of vital power of the respiratory organs, and of the system generally, to throw ofi' the mucus secreted in the air-passages ; and which is either very abundant, from the relaxation of the ex- treme vessels ; or very tenacious, from absorption of its more fluid parts, during its retention on the surface that secreted if, or from both conjoined. In such cases, the paroxysms of coughing are very severe and prolonged ; and the affection is liable to be exasperated upon every change of season and weather. — e. In other cases of humid cough, the exacerbations are also very severe, particularly in the morning ; but the excretion is thin and frothy. This is observed most frequently in persons addicted to intoxicating beverages; and in those debilitated by sexual indulgences. When humid cough depends upon hepatic dis- ease, it often assumes this form. 7. II. Treatment. — i. A.The idiopathic states of dry cougli require demulcents, emollients, with diaphoretics and narcotics, or anodynes (see F. 238. 244. 389. 426., and R 98. and 99. at p. 297.). The conium, hyoscyamus, solanum, oenanthe, and phellandrium aquaticum (Theussink and Frank), may severally be employed, and the functions of the abdominal viscera improved by suitable means. But the pathological states, as well as their causes, on which this form of cough depends, should be investigated, and the treat- ment modified accordingly. — a. If it follow the impression of cold in any form, the treatment described in the article Catarrh (§ 15.) will be appropriate. — b. If it be produced by tiie in- hiilation of irritating fumes, or the molecules of either mineral, vegetable, or animal matters float- ing in the air, the removal of the cause, and the use of demulcents, emollients, and emetics, and subsequently narcotics, are most to be depended Ff 3 438 upon. — c. When it assumes a nervous character, particularly in hysterical and delicate females, the state of the uterine functions, and the existence of irritation in some part of the digestive tube, or in the sexual organs, or spinal chord, should be en- quired after, and the treatment directed according to the information acquired. In many such cases, the exhibition of a gentle purgative, and after- wards small doses of camphor, ipecacuanha, am- monia, oxide of zinc and trisnitrate of bismuth, hyoscyamus, extract of hop or poppy, the carbonate of soda, &c., variously combined, will be of service. If there be evident debility, and the cough assumes a periodic form, the preparations of bark or of iron, the sulphate of quinine, or gentle tonics, with anodynes and narcotics, will be required. The cold bath, which has been much recommended by VVhytt, will also prove beneficial. — d. When it proceeds from irritation of the^'awces or pharynx, demulcents, emollients, &c., with ipecacuanha, or with diaphoretics and anodynes, will be required. But the greatest advantage will be derived from the use of cooling and astringent gargles, and sto- machic purgatives (F. 266.). 8. B. The sijmptomatic occurrence of cough must be treated as pointed out in the articles on the primary affections occasioning it. — a. If it be re- ferred to the respiratory organs, the means ap- propriate to their diseases must not be departed from. — h. AVhen we observe elongation of the uvula, either witii or without signs of irritation of the pharynx, disorder of the digestive functions may be inferred ; and, after having had recourse to purgatives, cooling and astringent gargles, prussic acid, and mild stomachics will be useful. — c. The dependence of cough upon diseases of the biiiary organs, whilst it suggests a treatment chiefly directed to these diseases, will also indicate the propriety of ascertaining, with as much pre- cision as possible, their nature. If indications of accumulated bile in the gall-bladder and he- patic ducts are detected, calomel or blue pill, with, or followed by, purgatives, and a course of alteratives, taraxacum, &c. will be requisite. In some cases, a gentle dose of either of these cholo- gogues will produce copious discharges of morb:d bile, and the immediate disappearance of a con- stant, severe, dry, and harsh cough, of which alone the patient has complained. In others, repeated and large doses will be required to ac- complish this object. In all these, purgatives should be exhibited until the tongue becomes clean. If tenderness or pain exist in the region of the liver, with febrile symptoms towards even- inc, or restlessness through the night, blood-let- ting, general or local, ought to precede other measures ; and the hepatic disease should be treated with reference to the form it presents, and as described in the article on Diseases of the LivEn. — d. When the cough is attended by a tumid abdomen, and other signs of worms, the treatment recommended in such cases, according to their numerous modifications, must be cm- ployed. 9. In almost all the idiopathic and symptomatic forms of dry cough, more advantage will be ob- tained from demulcents than from heating or stimulating expectorants, which should always be laid aside when there is evident vascular excite- ment of a sthenic or tonic kind. 'i'liosu ex- pectorants, however, which are of a mild nature, COUGH — Treatment of. or which act chiefly by exciting slight nausea, will generally be of service, particularly when com- bined with emollients, diaphoretics, and narcotics ; and there are few conditions, in which the pre- parations of antimony or ipecacuanha, with liquor ammonia; acetatis, and the warm bath, will not be extremely beneficial. In this variety of cough, also, appropriate medicines, exhibited in such a manner as will favour a prolonged impression on the palate and pharynx — as in the form of loienge or linctus — will thereby have their effects mani- festly promoted ; and advantage will also accrue from wearing warm, antispasmodic, or rubefacient plasters between the shoulders, both in this and the humid variety of the affection. No 160. R Confect. Ros. Canin. et Confect. Rosje Gal. aa 3j.; Olei Amygdal. Dulc. 3 vj. ; Syrupi Papaveris AIbi 3ss. ; Spirit. jEther. Nit. 3ij ; Acidi Sulplnir. ilil. 3jss.; Pulv. IpecaciianliEe gr. ij. M. Fiat Linctus, de quo sumatur pauxillum subindfe. No. 161. R Emplast. Picis Comp. part. ij. ; Emplast. Ammoniaci (vel Emp. Ammon. cum Hydrarg.) et Em- plast. Opii aa part. i. M. Fiat. Emplastrum perlargum inter scapulas imponendum. 10. ii. Humid cough, when it presents the cha- racters of slight catarrh, requires the treatment described in that article. — a. If it frequently recur, or become chronic, or assume the form of winter cough, the more tonic demulcents, as the decoction of Iceland moss, or of the sea moss, with lemon and candy, — the misturaferri compos, with a decoction of liquorice root, — attention to the digestive and excreting functions, — warm clothing, — and careful avoidance of exposures to the vicissitudes of season or weather, — are most to be depended upon. — b. When the cough occurs in old persons, with increased secretion obviously from the bronchi, gentle tonics, and ex- pectorants, as myrrh, galbanum, assafoetida, ben- zoin, the oxide or sulphate of zinc, the terre- binthinates, camphor, ammonia, the balsams, and, indeed, the whole of the treatment described in the articles on Chronic Bronchitis (§ 91.) and BnoNcnoRniicEAare most appropriate. — c. When it is complicated with gout or rheumatism', purg- atives, combined with tonics or stimulants, in order to carry off collections of morbid bile, and other vitiated secretions ; and afterwards the medicines now enumerated, or the preparations of ammonia or camphor, combined with colchicuni, will generally afford marked relief. The depend- ence of this variety upon the diseases already noticed as occasioning the other form of cough, requires the several measures pointed out with reference to each of them (§8.). — d. If the cough be very severe, in old and exhausted persons, and in those who have injured their constitutions by venereal indulgences, a tonic and stimulant treatment, and the remedies instanced in this paragraph in increased doses, will be requisite. It will be found in these, as well as in broken- dmen drunkards, that the cough will be aggravated by remedies which in any way depress the vital energies. In these last, the cough is frequently connected with hepatic disease, the treatment of which will depend upon its nature; but, although depletion may be occasionally required for the primary malady, the powers of life must be at the same time supported. 11. In this variety, generally, the mild ex- pectorants, with demulcents ; the jelly of sub-acid iiuits ; the inhalation of emollient, stimulating, or astringent vapours (see Bronchitis, § 76. 98.) ; CRANIUM AND ENVELOPES — their Lesions. 439 the use of acid beverages ; warm, rubefacient, sti- mulant, and tonic plasters ; the warm bath, made gently stimulating by salt and mustard ; a light, demulcent, and nutritious diet, with strict atten- tion to the functions of the stomach and bowels ; change of climate, or of air, and a judicious choice of residence according to season, with gentle but regular exercise, and warm clothing ; are severally of advantage, and some of them of the utmost importance. (See Bronchi, § 104.). BiBLiOG. AND Refkr. — Femel, Consil. xxiv. — Forest, xvi. n. 1— fi Hoist, Opera, vol.ii. p. 128. — Willis, Phar- niacop. Ration, par. ii. sect. i. cap. 4. — Montaigne, Essais:, 1. i. cap. '20. — Bunet, Sepiilctiret. Anat. I. ii. s. iii. obs 11. — Morgngni, De Scd. et C;ius. TVIorb. epist. xv. art. 22, '23. — Strin, De Tussi Stomachali Humida. Argent. 1749 — Winther, De Tussi Stomachali, &c. Marb. 1719. — Mai- ler, De Tussi. Goet. 1749.— IVhytt, Works, 4to. p. iS'2. — BUcliner, De Tussi Humida, &c. Halfe, 17fi3. — Finek, De eo, quod Tussi proprium est et Communi. Bamb. 1779. — Kappelhonf, Scctiones Cadaverum Pathologica?, p. 5. — I'ogel, Beobaclitungen, Sec. No. 7. — Portal, Anat. Med. t. V. p. 4:5 Percival, Essays, &c. vol. i. p. 27'2. ; and Med. and Phys. Journ. vol. iv. p. fi.'j. — Miidge, On Coughs, ^•c. 8vo. London, 1789 Doublcday, Med. Observ. and Inquir. vol. V Douglas, Sn Ibid. vol. vi. yiAfiS. — Bell, Duticnn'a Med. Comment, vol. xiv. p. 307. — Frank, In- stitut. Clinica Vilnensis, ann. ii. p. 27. — Wicliiriann, \n Loder's Journ. b. it. st. 1. p. 31. — Young, Introduct. to Med. Literature, 8vo. p. 181. — Staitger, Trans, of Med. and Chirurg. Soc. vol. i. p. 13. — M. Good, Study of Med. by Cooper, 3d edit. vol. i. p. 580. — Brooke, On Liver Cough, Trans, of Irish College of Phys. vol. iii. p. 245. COW-POX. See Vaccination. CRAMP. See Convulsions (§ 4.), Sp.asm, and Tetanus. CRANIUJM. — SvN. Kpavi'ov (from xpavoj, a helmet, as defending the brain from injury). Die Hirnschale, Ger. Le Crane, Fr. Cranio, Ital. The Skull. Classif. Pathology. — Special Pathologii — Morbid Anatomy. 1. The cranium and its envelopes, the scalp and the pericranium, are often the seat of diseases which are of much moment, not only as respects these parts themselves, but also as regards the important organs and membranes which they contain. 2. L Diseased Appearances of the Enve- lopes OF THE Craniu.m. — Thesc are princi- pally the same as are observed in analogous structures in other parts of the body. Nearly the same changes are remarked in the scalp, and subjacent cellular tissue, as in the integumental coverings of other parts ; and in tiie pericranium, as in other parts of the periosteum. These struc- tures, forming the envelopes of the cranium, will, therefore, require but little remark. 3. A. The scalp is subject to the same inflam- matory states as other parts of the body ; and these require the attention of the physician, from their occasional extension to the bones of the .cranium and membranes of the brain. Liflam- mations of the scalp vary in character with the condition of the vital energies and digestive and biliary organs. Sometimes this structure is the seat of active phlegmonous injiammation, but more generally of the erysipelatous. AVhen ery- sipelas attacks the scalp, a copious exudation of a serous or sero-albuminous fluid takes place in its subjacent cellular tissue. Occasionally this tissue is affected by inflammatory action of an unhealthy kind, but limited in extent, and closely resem- bling carbuncle, and of which I have met with some cases in children. The scalp is also par- ticularly liable to certain specific inflammations of a chronic kind, especially to pityriasis, porrigo, sycosis, lepra, psoriasis, eczema, rupia, and syphilitic ulceration. I'umours, generally en- cysted, sometimes form beneath the scalp, most frequently between it and the tendinous expan- sions of the occipito-frontalis, and other muscles attached to the pericranium. These expansions, and the muscular structure attached to them, and perhaps occasionally the pericranium also, are often the seat of rheumatism and rheumatic inflammation. They are not infrequently, also, affected by common inflammation and its con- sequences, particularly after external injuries. Dropsy of the cellular tissue beneath the scalp, independently of inflammation, is very rare. It has, however, been observed in young subjects, and received the appellation of hydrocephalus er- ^er/nis, and xdema capitis, 4 .B. The Pericdamum is subject to the same changes as the periosteum in other parts of the body ; amongst these are chronic and Sj.ecific inflammations, giving rise to thickening of the membrane; to nodes, frequently terminating in suppuration and exfoliation of the subjacent part of the bone ; and, in cases still more chronic and slight, to unnatural deposits of bone upon the external surface of the skull. (See Periosteum — Injiammation of.) Inflammations of an acute or sub-acute character sometimes, also, attack this structure, and, when not arrested in their progress, give rise to its separation from the bone ; and not infrequently, owing to the exten- sion of the morbid action through the tables of the cranial bones, to a corresponding separation of the dura mater from the diseased part of the skull. It seems probable that morbid action of any kind is seldom continued long in the peri- cranium, without the dura mater, which performs the office of an internal periosteum, suft"erinor iu a corresponding degree, and ultiuiately trans- mitting the disease to the subjacent membranes, and even to the brain itself. Specific inflamma- tion also of this structure, of a most painful and dangerous kind, occasioning death of the portions of bone beneath the parts chiefly affected, is produced by syphilis and the inordinate and pro- longed use of mercury. 5. IL Morbid Changes IN THE Cranium. — The bones of the cranium are subject to various diseased appearances, many of them having a close reference to the state of the system, and its morbid dispositions, and still more so to those slowly formed lesions which frequently affect the brain and its membranes. — A. Enlargement, or rather distension, of the bones of the cranium, is frequently an attendant upon chronic hydro- cephalus, and the hypertrophy of the brain some- times accompanying rickets. When the accu- mulation of fluid is great, and has taken place before ossification is far advanced, this process frequently commences at several more distinct points than in the healthy state, thus generating as many distinct bones. In the majority of these cases, although the surface of the cranial bones is greatly extended, there is a general deficiency of the ossific deposit, rendering the skull more than usually thin. The Museum of Guy's Hos- pital contains the cranium of an hydrocephalic man, who lived to the age of 29 years. Its cir- cumference is 33§ inches. There is also in the F f 4 440 CRANIUM — Morbid Chaxges in. Museum of St. Thomas's, the skull of a child of two years, that measures 29 inches. 6. B. Deficient' deposit of bone, as now re- marked, is often connected with the foregoing- lesion ; in which case it is commonly general, the whole cranium being more or less thin as well as enlarged ; but the thinness may also, although less freqiiently, accompany a natural-sized skull. The deficient deposit, or thinness of bone, may also be partial. In this case, partial or cir- cumscribed accumulatious of serum, or tumours, generally exist beneath the part of the cranium thus changed; and we have reason to believe that it is to the pressure exerted by these that the unusual thinness is to be imputed. It should, however, be kept in recollection that the cranial bones vary exceedingly in thickness, without having seemingly diverged from the healthy state. 7. C. Imperfect ossification is chiefly a lesion of early age, being merely a slow or impeded developement of the bones, arising from one or both of the following causes : — a. From deficient powers of the constitution, in which the process of ossification either generally or locally in re- spect of the cranium participates ; b. From the distension arising from the accumulation of fluid. The imperfect ossification in such cases may con- tinue to the age of three, four, or five years, and generally consists merely of a more than usual openness of the sutures, or a deficient deposit of bone at the parts most remote from the centres from which the ossific process proceeds. In .some cases, however, the imperfection exists in about the middle of one of the bones ; a patch of membrane, or a narrow stripe being surrounded by bone. When these patches or clefts in the bone are considerable, or remain for any time unfilled up, a portion of the membranes often protrude, forming large watery tumours, owing to the pressure of fluid eflTused between or under- neath the membranes, — a circumstance which occasionally obtains. An interesting case of this description, successfully treated by ligature, has been recorded by Mr. E. Thompson. The ma- jority of these cases are congenital, but the pro- trusion is often not noticed until long subsequent to birth. Sometimes a portion of the brain itself protrudes, forming a congenital hernia cerebri. 8. D, The bones of the cranium may be insufficiently evolved. In tiiis case they are generally formed with more than sufficient ra- pidity, and their sutures are closed prema- turely, so that they cannot give way before the growing brain, which thus becomes, with the case enclosing it, imperfectly evolved. The cranium may thus appear unnnturally small, as is sometimes observed in idiots and epileptics ; but this state may arise not only from early closing of tlie sutures, but also from imperfect developement of the brain itself. Microcephalia was considered by IIippocrates as a cause of idiotcy ; and facts, showing that great diminution of the size of the head is very generally con- nected with weakness or privation of intellect, have been adduced by Ghidinc, (jam., Si'uiiz- iiKiM, Gkorgk']-, and many others not believers in the doctrine of Gai.t,. f). E. The sliape of the cranium is often some- wliiit changed by these and other causes. Wiien the cranium is much tlefiormed, it is more com- monly a congenital vice arising either from the pressure in utero of a deformed pelvis, pelvic tumours, &c. ; or from deficient developement, early disease of the embryo, and monstrosity ; or from congenital change of the structures which it contains. But deformity of the cranium may also take place after birth, from deficient or irre- gular developement .of the brain, or from the eflfusion of fluids in the cranial cavity. The early closing, also, of some sutures, and the protracted closing of others, whereby the yielding of the' bones is prevented in one part, and facilitated in others, are often productive of deformity. Rickets, dropsy of the brain, softening of some of the bones, particularly of the base, whereby it is thrust tip into the cavity (Otto), cretinism, &c., are all often productive of deformity. A species of deformity has several times come be- fore me, and generally attended by epilepsy, and idiotcy, which I have seldom seen noticed. This consists of qbliquitii in the halves of the cranium ; one half being much more depressed, both at the top and base of the skull, than the other. This deformity is sometimes thus simple, consisting only of comparative elevation and depression of the sides of the cranium. But I have observed it more commonly connected with an equal obliquity posteriorly and anteriorly ; the elevated or depressed half either receding or advancing much more than the other. In cases of this de- scription, the cranium has also presented a certain angular form, so that I have been led to de- nominate the appearance, the diamond-shaped obliquity or deformity of the skull. 10. F. Hypertrophxi , thickening or enlarge-' ment of the bones, assumes two principal forms. 1st, Tliat of a superabundant deposit of the ossific matter, giving rise to uncommon density, and to the disappearance of the diploe, and converting both tables of the skull into one dense bone, resembling, but much harder than, ivory. Tliis appearance of the cranial bones is almost na- tural to the negro. It is observed, also, in per- sons advanced in life, who have been 'subjected to laborious employments, physical and mental ; and it is often seen in epileptics, in maniacal epi- leptics, and in some who have been long insane. It may or may not be accompanied with increased thickness of the bone. Greding found the skull too thick in 151 out of 196 insane persons; and Georget observed it one twentieth and up- wards too thick in 430 out of 500, belonging to the same class of patients. The second form of en- largement is rather the result of a loose or spongy formation of the bones, in which, although most remarkable in the diploe, both tables of the bone often participate more of less. In this form, the actual quantity of bony matter is not much augmented. Increased thickness of the bone generally obtains here, and sometimes reaches an enormous extent, and closely resembles in ap- pearance a piece of pumice stone. 11. G. Irresrnlar deposits of ossific mailer are very frequently observed on both the internal and external surfaces of the cranial bones, particularly the former. '1 hey are often found adjoining the sutures, sometimes with a mammilaled ap- pearance on the external surface. On the internal surface, they frequently assume an irregular bo- tryoidal form ; sometimes they present large masses, particularly on the frontal bone, and encroach considerably upon the cavity. Not CRETINISM. 441 infrequently these deposits are prolonged into the form of irregular processes : occasionally the pro- longation is in the seat of particular parts or pro- cesses, as in the clinoid process. These exostoses are sometimes very prominent and acute. In some instances they encroach upon the foramina through which the nerves and vessels pass. In these cases, symptoms of pressure or of irritation are present, and vary according to the seat, form, . and extent of the ossific deposit. Epilepsy, in- sanity, irregular convulsions, spasmodic contrac- tions, and neuralgia, are amongst the most pro- minent effects of these productions. 12. H. Vascular engorerement \s sometimes ob- served in the cancellated structure forming the diploe, in cases where great congestion, or very active inflammation, has existed in the head, mem- branes, or pericranium ; the vessels passing from or into the bone being congested, and the diploe of a deep or purplish red colour. 13. /. A softened state of the diploe is not infrequently observed in cases where active in- flammation has affected the pericranium, or dura •mater, and extended to the bone. In these cases the tables of the bone are more friable than natural. A similar appearance is also observed when the system has been much contanMnated by carcinomatous disease. 14. K. Ulceration of the cranial bones is also upt uncommon ; and is generally attended with more or less absorption, exfoliation, and the de- ' posit of irregular bony spiculae. I'lceration and absorption result very frequently from lupus, and tjie formation of bony spiculae generally attends upon osteosarcoma. 15. L. Caries, or death, of the bone is not in- frequently observed to follow upon inflammation extending from the pericranium, or dura mater, to the bony structure. It is a very common con- sequence of inflammation of the ear long neglect- ed, or imperfectly treated. It may be limited to either of the plates, or it may extend to the whole ' thickness of the bone. In either case, the dead pait is detached from the living by the absorption which takes place around it, and in the surround- ing inflamed and ulcerated parts. Owing to this process, a distinct line of separation is frequently .formed, and tlie dead portion is completely ex- foliated. While the dead bone is being removed in ~ tliis manner, or after its removal, if the dura mater, which acts as the periosteum of the internal table, is hot destroyed, new bone is deposited, and thus the mischief is often repaired. — I have met with two such cases in children. 16. M. Fungus cranii, or medullary sarcoma of the bones of the skull, is occasionally observed. Is has been described as occurring on the top of the cranium by Crell, Sandifort, Wisiiart, AuERCROMuiE, Landmanx, and Otto. A dis- tinct tumour is often produced by it on the in- ternal as well as the external surface of the skull, — the part forming a spongy growth. It is more rarely met with about the base of the cranium. It may originate in the bones, or their internal or external periosteum ; but, in whichever of these it may commence, it soon involves tliera all. AVhen originating in the bones, it usually assumes the characters of osteosarcoma, and those of fungus when it commences in the pericranium or the dura mater. 17. N. Perforations of the cranial bones are also observed, generally as a consequence of the pressure of internal tumours, of an encysted, scrofulous, or fungoid description, attached to the membranes underneath, or of aneurisrtis, .kc. Cases of this description are recorded by Pal- LETTA, Le Clerc, llicjiTER, Pelletan, and Otto. After artificial perforations of the skull, as after trephining, and fractures with loss of bone, osseous matter is sometimes regenerated, radiating from the surrounding divided surface of bone. The exuberant formation of ossific matter after fractures of the cranium is sometimes productive of serious efl^ects. (See^ll.) 18. 0. Depressions and fractures require litllc notice further than that they are the most fre((uent causes of inflammation, and its consequences in the surrounding membranes, and contained or- gans, and of irregular bony depositions. De- pression of the superior and lateral bones of the skull may take place in early age to a very great extent, and remain through life, without affectino- the mental manifestations. Several instances of this have come before me, in some of wiiich the depression was fully larger and deeper than the bowl of a large table-spoon. One of my earliest and most talented friends has a depression to this extent in one of the parietal bones, from an ac- cident in childhood. BiBLioG. AND Refer. — ie C/erc, in Hallcr's Biblioth. Chirurg. t. i. p. 469. — Kavfmann, De Tutnore Capitis Fungoso, &c. Helmst. 1743. — Sandi/ort's Exercitat. Acad. I. ii. t. 3. — Siebold, in Arnemnnn's Magazin fiir die Wundarzneiwiss. Got. 179?, vol. i. part iv. p. 389. — Cheston Browne, in Philosoph. Transac. vol. Ixx. p. 323. — Home, Trans, for Improvement of Med. and Surg. Knowledge, vol. iii. — Sand/fort, Observ. Anatom. Pa- thol. 1. iii. cap. 9. t. 9., et I. iv. cap. 10. ; et Museum Anatom. vol. ii. t. 61,62. — Blumenbach, De Anomalis et Vitiosis quibusdam nisus formativi Aberrationibus Com- ment, p. 17. — Esquirol, in Diet, des Scien. Mid. t. xxiii. p. 521. — Georget, De la Folie, &c. Paris, 1820, p. 478. — J.aiid7nxmn,Commeni. Patholog. Anatom. &c.4to. Lips. 1820. — Pine/, Sur les Vices de Conformation du Crane dcs Alienes ; in Bullet, de la Socict. Philomath. Ann. t. iv. p. 103 — 109. — ll'cnxel, Ueber den Cretenismus. Wien. ISfB. — Baillic, Engravings, &c. fasc. x. — J. p. Frank, Opiiscula Posthuma, p. 102. t. 4 — 6. 8vo. Vien. 1824. — Krebel, De Anatomia Patholog. Ossium Capitis, 8vo. Halje, 1823. — Otto, Verzeichniss der Breslauer Anat. Prikparatensamlung, No. 163. 165. 210. 3057. 3068. 8046. &c. — Palletta, Exercitat.- Patholog. vol. i. p. 127.— Abercrontbie, Path, and Pract. Researches on Diseases of the Brain, &c. 'EAm. W2S. — Bright, Medical Reports, SiC. t. ii. p. 686, &c. — Cruveilhier, Anatomie Pathologiquc. Levr. 8vo. Paris, 1830, fol. — BalHngall and Russet, in Transact, of Med. and Chirurg. Soc. of Edin. vol. i. ]>. 68. 74. — E. Thompson, in Lond. Med. Kepos. vol. xxii. p. ooo. {Very ititeresting.) — (See also Art. Cranium, m Plonc~ qtiet'i Med. Digesta ; and in Olio's Lehrbuch der Pathol. Anat. des Menschen, &c. Berl. 1830.) CRETINISM. — Syn. Cugots, Struma Tyro- lensium, Gautier. Cretin, Cretinisme, Ft. Classif. — 6. Class, 1. Order (Good). I. Class, IV. Order (Author), 1. Defin. — Imperfect formation or develope- ment of the cranium, and the whole of the body, witli mental imbecility, and physical imperfection , varying chieflii in degree. 2. This state of imperfect physical and mental developement, rather than of diseased action, was first noticed by Plater among the poor of Ca- rinthia and the Valais, where, and in the valleys of the lower Alps and Switzerland, it is endemic. But it is not peculiar to these places ; for it has been observed in the valleys of the Pyrenees by Raymond, in some parts of Salzbourg by Kxolz, and in various other localities in the central and southern countries of Europe, as well as in Chinese Tartary, according to Sir G. Staunton. 442 ]M. De Saussure, Ackermann, Fodere, Iphof, Erhard, the Wenzels, and Knolz, have given us the best description of this state of mental and bodily deformity, in respect both of its na- ture and cause>;. Tlie brief account of it by Dr. Good is both imperfect and erroneous, and must have been written in perfect ignorance of the de- scriptions of the above eminent observers, as well as of others deserving of perusal. lie very inaccu- rately associates it with bronchocele on the one hand, and with rachitis on the other, with the former of which it is not necessarily, although very frequently, connected, and from the latter it is totally distinct. 3. I. Description. — Cretinism presents va- rious modifications in kind, and every inter- mediate grade between that extreme degree of physical and mental debasement which is cha- racterised by the utmost deformity and entire absence of mental manifestation, the organic or vegetative functions only being performed, and tliat condition which may be considered as very nearly approaching the healthy constitution of man. There are certain circumstances which distinguish cretins from other idiots, viz. a. They present certain bodily deformities, which are sel- dom or never observed in other idiots ; and, b. Their physical and mental infirmities are always the result of endemic causes. 4. In general, some degree of goitre is attend- ant on cretinism, but not invariably. Professor Knolz states, that it is sometimes absent, and occasionally slight, the thyroid gland being en- larged in no greater proportion than several other glands are in the same subject. The stature is seldom above four feet and a half, often much less ; the cranium is deformed and has a conical shape — the forehead being thrown backwards, narrowed, and flattened, and tlie occiput being nearly on a line with the neck ; the flesh is soft and flaccid ; the skin wrinkled, yellowish, or pale and cadaverous, dirty, and covered by chronic eruptions ; the tongue is thick, and hang- ing out of the mouth, which is open, large, and slavering; the lower jaw is elongated and prominent; the eyelids are thick, the eyes red, small, but prominent, watery, and frequently squinting; the nose is flat ; and the whole coun- tenance is idiotic or expressive only of lascivious- ness. The belly is large and pendulous ; the neck either short and thick, or long and thin ; the limbs crooked, short, distorted, &c. ; and tlie gait imperfect and waddling. 'I'he senses are more or less defective, or altogether abolished ; the cretin being often deaf and dumb, and those who possess the faculty of speech expressing them- selves imperfectly and with difficulty. The in- tellectual functions are cither entirely absent or imperfectly developed, whilst the organic or vegetative functions are in a state of increased activity: cretins being voracious, lascivious, and addicted to masturbation. They appear to have no oilier enjoyment than eating and sleeping ; and their insensibility is often so great that they obey not the calls of nature. In some instances, the bodily deformity is not so remarkable as that now described; imbecility, fiacoidily of the soft solids, with bronchocele, constituting the extent of in- firmity.* • The followiriK account of the " Feres," or cretins of Salzbourg, is abridged from that given by Trofessor CRETINISM — Description of. 5. The cretin, like most idiots, seldom attains an advanced age; indeed, few of them reach up- wards of thirty years. Clayton remarks, that although they die early, they soon present the appearance of age. They are usually of the lymphatic temperament, with light hair and grey eyes ; the female cretin having enormously large and pendulous breasts. The less debased among them marry, rarely with one another, but do not propagate cretinism, the predisposition only to it being derived by the oflfepring from the parents. Malacarne (Mem. de I'Acad. de Turin) attri- butes the mental debasement to the contraction of the bones of the cranium, which prevents the cerebral organs from acquiring their natural dimensions and functions ; and Ackermann espouses a nearly similar opinion. The con- formation of the body is generally stated not to be congenita], although, at birth, the cretin may appear weak, puny, or sickly. It usually comes on gradually from birth ; and M. De Saussore states, that children who, living in the localities where it is endemic, and are not affected at eight or ten years, generally escape it ; and that infants who are brought into these districts at a very early age, are equally subject to it with those who are born in them. Knolz : — The whole body is stunted, its height not ex- ceeding four feet. Tliei"e is a total want of due proportion between its different parts : the height of the head, with reference to the rest of the body, being 1-lth or 1-Gth, in- stead of l-Sth, the natural proportion. The neck is strong, and bent downwards. The mamm^ are very voluminous and pendent; the upper limbs reach below the knees; the arm is shorter than the fore-arm ; the chest narrow ; the abdomen hemispherical, and of a length not exceed- ing the height of the head ; the penis and scrotum come down to the knees ; the thighs are, with the haunches, of a greater width than the shoulders, and are shorter than the legs, the calves being almost wanting; the foot is small, and the toes partly distorted; the lower extremities are shorter than the upper half of the body. In tlie head, the mas- ticating organs, the lower jaw, and the nose, preponderate consideralily over the organs of sense and intelligence. The skull is depressed, and forms a lengthened and angu- lar ellipsis ; the receding forehead presents, internally, large frontal sinuses, to which the brain has yielded apart of its place ; the top of the head is not vaulted, but flat- tened ; the occiput projects but slightly, and runs almost even with the nape of the neck, as in ruminating ani. mals. The face is neither oval nor round, but spread out in width ; the parts of which it is composed being wide and short, and the maxillary bones projecting greatly. The forehead is narrow, flattened, and low ; the eyes are unusually far ajiart, diverge slightly, and are small, and seated deep in the orbit ; the pupil is contracted, and not very sensitive to light; their external angles arc situated higiier than the internal; the eyelids, unless when drop- sically swollen, are flaccid and pendent ; the look is a fixed stare without expression, and turns with indiffer- ence from all that is not eatable. The root of the nose is widened and depressed, the bones of the nose square ; the zygomatic bones are wide, and extremely projecting : the external ear is large, stands out from the head, and hearing is very defective. The elongated form of the lower jaw of the cretins, and their thick and padded lips, make them resemble ruminating creatures more nearly than man. 'I'he tongue is thick, and rather cylindrical than flat ; the saliva is continually running from the angles of the mouth. Enlargement of the thyroid gland is recognised as one of the signs of cretinism ; but its size is no sure guide to the extent of the existing infirmity. The throat jnesents, also, other obstructed glands. The thorax is generally narrow and flat ; the abdomen is usually distended with gases, and largely developed to- wards the chest ; the flesh of the extremities is flabby ; the knee of an irregular shape, and usually bent ; the fingers are very long and lank, and the nails very small. The upper part of the vertebral column licing directed more or less forward, and the lower part, with the basin, being pushed backward, the sacrum assumes a more ho- rizontal, and the other pelvic bones a more vertical position, than in the healthy formation. Besides the masticating and digestive organs, those of generation are also strongly developed, especially in the male. (Mn/ecin. Jarhuckcr lies li. It. Mslcrr. Stnatcs, b. i. st. 1. 1829, p. S6.) CRISIS 6. II. Causes. — The principal, if not the only, cause of cretinism is dwelling, during in- fancy and childhood, in deep, narrow, moist, and malarious valleys, situated at a lower level than 3000 feet above the ocean, where the air is stagnant, and tiie solar beams intercepted by the mountains. ftllM. Ferrus, Georget, and the authors already referred to, state, that cretins become numerous in proportion as the valleys sink below this elevation. In addition to those causes, may be added the poverty, ill-feeding, drunkenness, indolence, dirtiness, sensuality, and low debauchery of the parents, — circumstances tending to the production of an infirm and de- formed offspring ; the inactivity and filth into which children who begin to evince signs of cretinism are allowed to sink, and the influence of water holding calcareous and other mineral substances in solution. ]Mi\l. De Saussure and FoDERE, however, deny tiiat the water is concerned in the production of this infirmity ; but MM. Bally and Rambuteau show that much is owing to it in the causation of cretinism, as well as Broxchocele (see that article). I'he last named authority states that the offspring of the natives of Valais, who intermarry with persons from the Italian side of the Alps, are more subject to cretinism than those born of native parents ; that females who have husbands from the higlier Alps seldom have children aflected by this in- firmity ; that wherever cretins are seen, goitre is also prevalent ; but that the latter is found in places where the former does not exist; and, consequently, that the same causes that occasion goitre, when present in an intense degree, also produce cretinism. 7. III. The Treatment of this infirmity is necessarily preventive rather than curative, and consists of the amelioration of the physical and moral condition of the parents ; of the removal of infants, as soon as signs of the malady manifest themselves, to more elevated and open localities, and to mountainous districts, to enjoy a purer air and stronger light; of obliging them to exert themselves in some useful and suitable employ- ment, and to pay attention to personal cleanli- ness ; of frequent ablutions, followed by active and stimulating frictions of the whole surface of the body ; of the use of stimulating tonics (Eruard); and of allowing them a stimulating and strengthening diet, with a large proportion of animal food. Josias Simler, who wrote in 1574, states that the malformation, constituting the physical infirmity, is sometimes congenital ; and probably it is so occasionally. In such cases, it is not likely that much advantage will accrue from any means. JM. Rambuteau, however, states that it is scarcely ever congenital ; but it is not unlikely that experienced observers may pre- dicate, from the appearance of the newly born in- fant, whether or not it is likely to become the subject of this dreadful infirmity — may observe that state of developement and formation, which, if not actually the incipient malady, is predis- ponent to its occurrence. 443- Iphof, De Cretenismo. Viteb. 180-t. — Michaelis, in Blu- menbach's Biblioth. b. iii. p. fi+0 I'irey, in I)ict. Sciciic. Med. t. vii. p. 3\o. — Georget, Diet, de INIedeciiie, t, vii. p. 184. — Hambuteau, in Ibid. t. vi. p. ISfi. — F. Sensbnrg, Der Cretinisinus, 8vo. Wurzbourg, 182j C. Loiidc, Diet, de Med. Prat. t. v. p. 550. — J. J. Knolz, in Bulletin des Scien. Med. t. xxi. 18.30, p. Si'O J. Johnson, Change of Air, or tlie Pursuit of Health ; being an Excur.sion throuph France, Switzerland, and Italy, &c. 8vo. Lond. 18j1, p.56. BiBLio<;. AND Refer Storr, Alpeureise A'orborei. tung, par. Iv. — De Smtssure, Voyage dans les Alpes. Gendv. 17SG. — Clayton, in Mem. ot the Lit. and Philos. Soc. of Manchester, 1790, vol viii. art. 13 Ackermann, Uel)cr die Kretinen, &c. Gotha, 1790, 8vo. — Fodiri, Sur le Goitre et le Crttinisrae, 8vo. Turin, 1792 Erhaid, in Hufeland'a Journ. der Pract. Heilk. b. xiv. st. 2. p. 80. —J. et C. Wenzel, Ucber den Cretinismus, Vien. 1802 CRISIS. — SvN. KpiVt?, a judgment or decision (from HpiW, I judge or determine). Judicium, Jiidicatio, Lat. Entsclteiduiig der Krankheit, Ger. Crise, Fr. Ciisi, Ital. Classif, — Prognosis. 1. Crisis may be defined a sudden change dur- ing the height of a disease, tending either to re- covery or to death. Critical changes have been much regarded in the prognosis and treatment of diseases, from the time of Hippocrates, who first mentioned them, and the days on which they occur, down to the present period. Asclepiades, and the methodists, however, denied their in- fluence, and disputed the existence of critical days. Galen and his followers attached great importance to them. It is recorded, that, having been called to a patient — a young man — with two disciples of Themison, Galen prognosticated a favourable change by a critical haemorrhage. The opinion was ridiculed by the two methodists, who advised blood-letting ; but it was soon verified, for the patient had a copious epistaxis, after which he recoveied. It is unnecessary to allude to the writers who have contended for the importance of tliis subject : they comprise most of the eminent names in medicine, from Hippocrates to Cullen, PiNEL, Frank, Hildenbrand, and Krevssig. The titles of many hundred volumes that have been written upon it might be adduced in proof of the consideration attached to it : and although much more has been imputed to critical evacu- ations, and days, particularly by the humoral pathologists, than legitimately belongs to them, and granting that too devoted an attention to them has induced many to adopt injudicious in- dications, and weak measures of cure, yet some reputation will be acquired' from the prognosis which an acquaintance with them will enable the physician to give ; and much benefit will result to the patient from the treatment which this know- ledge will suggest. 2. Since the overturn of the humoral pathology, the doctrine of critical evacuations has undeserv- edly fallen into disrepute, although the eminent writers who contributed most to the overthrow are amongst its most rational and warm espousers. In our own country, at the present time, too little attention is paid to these evacuations, and still less to the periods at which they occur. There can be no doubt that the former is the most im- portant ; but the latter part of the subject should not be disregarded. Alter all that has been urged in favour of, or in opposition to, the doctrine, I may conclude that, in temperate climates, a number of diseases, particularly fevers, run on for certain periods with regularity, and, after an exasperation of the symptoms, or some violent perturbation of the economy, terminate by evacuations of different kinds, which tend to remove the train of morbid actions, and to restore the healthy functions. In other cases, the exasperation of disorder is fol- lowed by imperfect evacuations, occurring in an irregular manner ; whilst in some it gives rise to 444 CRISES — DEscniPTioN of. additional phenomena of a dangerous or fatal cha- racter : hence crises have been denominated sa- lutary and complete, imperfect and fatal. It was considered by the older writers requisite to a sa- lutary crisis, that the evacuations constituting it should be attended by favourable symptoms, and be copious and manifest ; and not only appropriate to the disease, but also consistent with the state of the patient. An imperfect crisis was considered belter or worse: the better state alleviating the malady; the worse rendering it more severe and dangerous, from the supervention of metastases and complications. Having described the phe- nomena which are critical, I shall next notice tlie periods of disease at which they are most frequently observed. 3. I. Crises manifest themselves, — 1st. On the SKIN : ^1. by sweats ; B. by acute or chronic erup- tions. 2d. In the cellular tissue: A, by swellings in various parts ; ^. by boils and car- buncles ; C. by gangrene ; and D. by purulent col- lections. 3d. In the glands : B, by buboes ; B. by swelling of the parotids ; C. by salivation ; D. by a flux of urine. 4th. On the mucous suu- FACES : A. by increased excretion — a. from the nose; b. from the bronchi, &c. ; c. from the sto- mach (vomiting) ; d. from the bowels (diarrhoea) ; B. by sanguineous exhalation — a. by flux — a. the haemorrhoidal ; /3. the menstrual; b. by hasmor- rhagy ; a. from the nose (epistaxis) ; /3. from the bronchi (haemoptysis) ; y. from the stomach (haematemesis) ; J', from the intestines; e. from the uterus (menorrhagia) ; ?. from the urinary organs (hsmaturia). 4. 1st. A. Sweats are salutary crises in continued and bilious fevers, in inflammations of the lungs and liver, in bronchitis, and less frequently in rheumatism. Fracastori describes an epidemic putrid fever which generally terminated favourably in this manner. Acute dropsy, particularly ana- sarca, when caused by interrupted perspiration, sometimes disappears after copious sweats. This evacuation is usually preceded and indicated by a soft, full, open puUe ; by a diminution of the al- vine evacuations ; by softness, and occasionally slight itching, of the skin ; and by increased colour of the cheeks, A salutary sweat should be dis- tinguished from such as are limited to the fore- head or face, and the neck or breast, whilst the rest of the body is dry ; or those which cover only the lower extremities : these constitute merely partial or incomplete crises, and merely diminish the violence of disease. 5. B. Eruptions. — Miliary and vesicular erup- tions only are critical : the others are merely symptomatic, or even from a part of the disease; as erysipelas, purpura, petechia;, &c. A miliary eruption is favourable, if the symptoms subside, if the patient feels an itching or pricking, if they be general, and do not appear before the seventh day: if they be unattended by fulness of the sur- face ; and if their subsidence be followed by vomit- ings, hiccup, or convulsions, they indicate a fatal termination (Landrk-Beauvais). Sometimes a miliary eruption comes out at diflcrent periods, and prolongs the disease, when partial relief fol- lows it, each appearance being an incomplete crisis. Many chronic eruptions may not only I)e complications of visceral disease, but occasionally imperfect crises, — they alleviating the internal ma- lady. They arc more rarely completely salutary. 6. 2d. A. Swellings of various parts, as of the face or neck, the hands, the lower extremities, &c., have been considered as partial crises in ataxic and gastric fevers, and in exanthematous diseases. — jB, Boils are critical in some complaints, par- ticularly towards the termination of acute diseases, especially small-pox. — C. Gangrenous pustules or anthrax occur in malignant or pestilential fevers ; gangrenous escars also are met with in similar cases, as well as in typhoid or adynamic fevers ; particularly about the sacrum, and in places which have been blistered, or pressed upon. If, in such cases, the febrile symptoms subside upon the sphacelation, and if the gangrenous change be rapidly and distinctly circumscribed, it may be favourably critical ; but if the symptoms continue, and the pulse becomes more frequent, weak, small, and soft, the local mischief is entirely symp- tomatic, and indicative of an unfavourable ter- mination.— D. Purulent collections are indicated by the continuance of the disease without any considerable evacuation, or exhaustion; by a sense of chill, horripilation or rigor, occurring at inter- vals, without any manifest cause ; by the dis- charge of much clear urine ; by partial sweats ; by a softness of the pulse; by a remittent or hec- tic fever, and by flabbiness of the soft solids. The favourable changes of this nature occur in the extremities, and suppurate easily and rapidly. Those that are unfavourable take place in some internal viscus. 7. 3d, A. Buboes chiefly belong to pestilential fevers; but they are occasionally observed in the adynamic fevers of temperate climates. They in- dicate a favourable or fatal crisis in the manner s'ated with respect to gangrenous escars. — B. Sicellings of the parotids occur in low or malignant fevers ; and appear either alone, or with other critical changes. They are commonly preceded by a slight rigor; by severe headach, stupor, noises in the ears, and deafness, with paleness, swelling, and sometimes redness of tiie coun- tenance. Tills occurrence is rarely critical, and, of itself, furnishes no sure indication of the issue : if accompanied with favourable changes, it be- comes an additional sign of returning health ; but if the swelling is slow, or disappears in a very short time, the other symptoms still continuing, it is a dangerous circumstance. — C. Salivation was noticed by Sydenham as a principal critical evacuation in the fevers of 1667 and 1668; and it occurred in the epidemic that prevailed at Breslaw in 1700. It occasionally supervenes in some forms of cynanche,and in bilious and gastric fevers. — D. The urine is sometimes discharged copiously at the height of febrile and inflammatory diseases ; and is to be viewed as a favourable occurrence. It is usually clear when recently evacuated, but deposits soon afterwards a whitish or rose-coloured sediment. The symptoms indi- cating this discharge are very obscure. Some authors have noticed the " pulsus 7niiurus," whicli consists of every three or four successive puls- ations being progressively diminished. A sense of weight below the hypochondria ; of gravative tension in the hypogastrium, and of heat in the urinary organs, is stated by M. Landre-Beauvais to precede this evacuation. 8. 4th. A. n. CVci/srt, or sero-mucous excretion from the nose, is sometimes critical in continued fevers; but little importance is to be attached to CRISES — Description of. 445 it. — 6, Mucous excretion from tlie 6?-o«c/i( is fre- quently a partial ciisis in several fevers, and in inflammations of the thoracic viscera (see Buonchi and Ia'ngs). — c. Fi)»!ii(»os are rarely indications of a perfect crisis; they occasionally, however, favour the devclopement of those changes which precede a favourable termination of disease. They are sometimes ushered in by a bitter taste in the mouth, yellowish fur on the tongue, suborbitar pain, and headach, nausea, salivation, coldness of the extremities ; and frequency, and occasion- ally intermissions, of the pulse. — Strangul/itorius ; and WiLCKE, as it occurred in Sweden during some years preceding 1764. After the descriptions furnished by Home, and his Swedish contempo- raries, Halen and Wahluom, it received a place among specific diseases, and became the subject of a number of works, and even of controversial discussion. The treatises of Sijipson, in 1761, and of Millar, in 1769, on the acute asthma of infants, gave rise to this latter occurrence, es- pecially on the Continent. These authors, having observed the more spasmodic states of this dis- ease, described them under the above designa- tion ; subsequent writers differing widely as to their being distinct maladies, or merely varieties of inflammatory croup, with predominance of the spasmodic symptoms. This point was warmly contested in the numerous productions which the prize offered by Napoleon, in 1807, called forth. My opinions respecting it will appear in the se- quel. 4. I. History of the Forms and Progress of THE Disease. — Croup has been viewed, since its description by Home, as an inflammation of the interior surface of the trachea and larynx. Some authors have divided it into three distinct' va- rieties, namely, 1st, Catarrhal croup, or a slighter 450 form of the disease ; 2 J, Nervous or Spasmodic croup, or a slighter state of the inflammation,' occurring in nervous and irritable temperaments, which influence the form and issue of the dis- ease, giving rise to a spasmodic form of it ; and 3d, Injiammatory croup, or that in which the inflammation of the air-passages is carried to a greater height, and is always attended by the production of a membranous exudation. The opinion that croup consists of an acute inflam- mation, occasioning the production, in a number of cases, of a false membrane ; in others, of an albuminous concretion of various degrees of den- sity ; in some, of a viscid mucous secretion, and of the inflammatory lesions of the mucous mem- brane itself, already described (see BnoNciii, &c, § 3, 55.); has been attacked by MM. (juer- SENT and Bretonneau, who consider that the formation of a false membrane is the distinctive character of croup ; and that those cases in which it is not formed, are merely what they term false croup. I agree with M. Bricheteau in con- sidering that the distinction here contended for is calculated more to puzzle the inexperienced, than to advance our knowledge. The experiments of Schwilgue, Jurine, Albers, Schmidt, and CiiAussiER, as well as pathological observation, prove that the form of disease called false croup by the above authors proceeds from a simi- lar state of morbid action as that denominated the pure disease, and is merely a modification resulting from less intensity of the inflammation, peculiarity of the temperament and habit of body, the causes occasioning it, and the greater predominance of the spasmodic or nervous states. 'J'he experiments of the authors now referred to demonstrate, that the injection of irritating mat- ters into the air-passages sometimes produces simple inflammatory irritation ; in others, a thick, viscid, mucous exudation ; and in many, parti- cularly in young animals, a complete false mem- Drane. These differences of opinion, which are not confined to the writers now mentioned, but extend to many of those quoted in the course of the article, will appear, from what is about to be advanced, as more apparent tlian real, 'i'hat the disease should present numerous modifications, approaciiing acute bronchitis on the one hand, and identical with laryngitis on the other, and varying characters according to the portion of the air-passages chiefly affected, the temperament, habit of body, severity of inflammatory action, and association witii other diseases; is an in- ference to which it priori reasoning may lead every practitioner. Without adopting the con- fined views of some writers, or the hypothetical doctrines of otiiers, 1 shall be guided chiefly by an extensive experience in the disease, and con- sider it under tlie following heads : — 1st, The symptoms and progress of true croup ; 2d, The varieties or modifications of the disease most fre- quently observed ; and 3d, 'i'he com))licated and consecutive forms. 5. i. The iisuai. Form and Frociucss of TRUE Croui'. — Tiie simple and usual form of croup generally commences with more or less of precursory symjjtoins, and runs its course in a few days. It has been divided by authors into dif- ferent stages or periods, more, 1 believe, with the view of giving precision to tiieir description, and to the treatment recommended, than from any CROUP — History of its Progress. marked change in the character of the symptoms. M. GoELis has divided it into four stages, viz. 1st, the invading or catarrhal stage ; 2d, the in- flammatory period ; 3d, the stage of the albu- minous exudaiiou ; and 4th, the period of immi- nent suftbcation. A nearly similar division has also been adopted by Dr. Cheyne. The diffi- culty of determining these various stages must be evident ; and yet the advantages arising from a division of the disease into distinct periods must be evident, — not so much, however, for the pur- pose of description, as for the more strict appro- priation of the means of cure. Premising, there- fore, that croup, particularly this form of it, is strictly progressive, with no great change in its features, until towards its close ; and that, there- fore, all divisions of its course are merely arbi- trary, and without any positive grounds in nature ; I shall notice, 1st, its precursory signs ; 2d, its developed and confirmed state ; and 3d, the state of collapse and imminent suffocation. 6. A, The precursory period, period of in- vasion (Goersent), of irritation (Rover-Col- lard), catarrhal stage (Goeias), febrile period (Duces). These precursory signs are some- times well marked, and of a distinctly catarrhal nature, as observed by Goelis ; occasionally they are slight, chiefly of a febrile description ; and either from this circumstance, or from the shortness of their duration, attract but little notice. The febrile symptoms, when present, consist chiefly of alternating chilliness and heat, or, in the more acute cases, of slight chills, followed by heat of skin, frequency and hardness of pulse, slightly flushed countenance, want of appetite, headach, excited or variable spirits, alternating with sadness, lassitude, &:c. Often, in place of these, or in addition to them, there are a short cough, hoarseness, sneezing, coryza, some- times moroseness, and all the signs of common catarrh. Upon examining the pharynx and mouth, no trace of inflammation can be de- tected in this form of the disease ; but the tongue is generally white, and loaded at its base. The eyes are watery, red ; and the eyelids darker than usual. These symptoms are sometimes only of a few hours' duration, or they may be present for two or even three days. In very young children, they may be so slight as to escape detection, whilst a somewhat different train of phenomena, such as heat of skin, chilliness alternating with heat, frequent short fits of coughing during the night, want of sleep, restlessness, indications of uneasiness about the throat, furnished by the fre- quent application of the child's hand to this part, &c. manifest themselves. The importance of ascertaining the invasion of the disease have led several writers to pay much attention to its pie- cursory symptoms. Vievsseux has attached much importance to the catarrhal signs, and change in the voice. But these are not by any means constant ; and, even when present, may be merely the commencement of a slight catarrh ; indeed, there is no symptom wliicli can be relied upon, as indicating its approach, until the disease is nearly fully formed. 7. B. The developed state of the disease (the Injiammatory, of Cheyne and IIosack). — After the above symptoms have existed for a longer or shorter time, or in a more or less marked manner, hoarseness, if it have not previously existed) CROUP — IIisTORr OF ITS Prorress. 451 sometimes a peculiar slirillness or puling of the voice ; ditticult, sibilous, sonorous respiration ; and an unusual, dry, loud, clangous or ringing cough, as if passing tlnougli a brass tube, or sometimes resembling tiie barlcing of a puppy ; are observed. Tliis croupal cough scarcely ad- mits of description, although it is readily recog- nised after having been once heard. Tiie succussions constituting it are followed by a dry, hissing, slow, sonorous inspiration, resembling tlie sound produced by a piston forced through a dry pump, or by a crowing noise similar to that emitted by a chicken in the pip. Ex])iration be- tween the cough is more easy than inspiration, but with precipitation ; the pulse is frequent and hard ; the skin hot or burning ; the face flushed, sometimes covered with perspiration ; the eyes are watery and prominent ; the carotid arteries beat strongly, and the jugular veins are tumid. The head is now generally thrown backwards ; and the child, either by its speech or attitudes, expresses a feeling of anxiety, with pain and con- striction about the traciiea and larynx, which are often slightly tumitied externally. The above symptoms, which usually first appear during the evening' or night, generally somewhat subside vomiting follows the cough, and particularly when the excretion of glaii-y, albuminous, and membranous matters accompany it, a momentary relief is obtained, sometimes followed by pro- gressive diminution of all the urgent symptoms. Deglutition, particularly of fluids, is sometimes difKcult, especially when the larynx is affected, and induces the fits of cough and strangulation. These symptoms seldom continue equally intense during the whole of this stage, but present several slight remissions, particularly at its commence- ment, and in the less severe cases. Throughout this period, and, indeed, during the whole disease, the bowels are constipated, and the urine in small quantity, of a high colour, and generally albu- minous. The stethoscope generally furnishes no further information in this stage than a louder sound than that already heard ; unless when the disease extends to the large bronchi ; when a dry, tubular, or bronchial respiration, unaccompanied with crepitous dilatation of the pulmonary cells, but attended with perfect resonance of the thorax, may be detected. 8. C The third stage, or that of collapse and threatened sriffocation (the Suppurative, of Ho- sACK and Ciieyne), may commence from the early in the morning, excepting the frequency of first to the seventh day from the invasion, ac- the pulse, the hoarseness of the voice, peculiarity ■ cording to the intensity of the disease, and con- of the cough, and the sibilous inspiration. This j stitution of the patient. This period is charac- remission sometimes continues the greater part ! terised chiefly by the absence of any remission, of the day ; but after falling asleep, or towards j and the increased severity of all the symptoms, evening, all the symptoms become more severe 1 particularly the acceleration and diminished than ever; and the difficulty of respiration, the ' power of the pulse and respiration. The pulse is sense of suffocation, the anxiety and distress, are now small, weak, irregular, unequal, or even in- increased. The patient constantly applies the hand to the throat, which is sometimes painful to the touch ; the countenance is bloated ; the pulse still remains frequent, hard or small ; the cough is short, precipitous, convulsive, ringing, and followed by a crowing, or shrill or hissing inspiration ; and at the commencement of this stage is generally dry, or attended by a scanty mucous or sanguineous expectoration ; subse- quently it becomes husky and suffocative, some- times with fruitless attempts to excrete what is felt in the trachea. The patient constantly changes his position ; breathes with great diffi- culty, all the respiratory muscles acting with great force ; and at eacli inspiration, the tumid larynx descends rapidly towards the sternum, whilst the epigastrium is drawn upwards and in- wards ; and, during expiration, the former is car- ried towards the maxilla, and the latter comes on a plane with the surrounding surface. If any re- mission at all occur now, it is much less evident. All the symptoms become more severe. The cough is now more difficult, suppressed, or strangulating ; the suflbcation accompanying it more imminent, and the stridor or hissing noise of inspiration fol- lowing it much louder : sometimes it is followed by vomiting, and the excretion of a glairy mucus, occasionally containing flocculent or membranous shreds. The pulse is now very frequent, con- tracted, sharp, and small. The cheeks and lips are, particularly during the cough, somewhat livid, or extremely pale and tumid. I'heie are also great irritability and somnolency, but no delirium. The hissing, sonorous, and croupy character of the inspiration increases ; and the voice, which was shrill or hoarse, often becomes broken, whispering, suppressed, or puling. When termittent ; the cough is less frequent, less audible, suppressed, but suffocative. The voice is whisper- ing, low, or entirely abolished ; and the speech quick, imperfect, or lost ; the motions of the aliE nasi and the parietes of the chest are forcible and remarkable, and accompanied with a similar descent and ascent of the larynx and epigastrium to that already described (§7.). The head is constantly thrown back ; perspiration flows from the forehead ; the eyes become sunk, and lose their animation ; the countenance often assumes a leaden hue ; the tongue is dark and loaded, and its edges and the lips are purplish ; the sur- face of the body is covered with a cold viscid perspiration ; the feet and hands swell ; the skin is extremely pallid, and shows the veins through it, particularly those of the neck, which are lar^e and distended ; and the stools are dark and offen- sive. The patient very seldom recovers from this state ; but he sometimes obtains momentary, much more rarely permanent, relief, owino- to the expectoration of a portion of the albuminous, membranous, and nnico-puriform matters ob- structing the larynx and trachea. Wlien the excretion is free, recovery sometimes takes place slowly ; but where it is scanty, or when the dis- ease has extended downwards through the bron- chi, as it usually does when thus severe, the issue is commonly fatal. In this case, the patient tosses about in great distress : he seizes on objects around him, and grasps them convulsively for a moment • he throws his head back ; seizes his throat as if to remove an obstacle to respiration ; makes forci- ble efforts to expand the lungs; and after a longer or shorter period of such distress, seldom above twenty hours, expires, sometimes with signs of convulsive sufibcatiort, but as frequently with Gg2 452 coatiaued increase of the foregoing symptoms, and evidence of exhaustion of the vital energies, and in a state of lethargy. The stethoscope gene- rally furnishes information in this period of the extension of disease to the larger bronchi. This extreme state of disease seldom lasts longer than tvirenty-four hours. In young children, convul- sions sometimes occur, and occasionally terminate life. 9. D. Such is the usual course of the more se- vere cases of common and uncomplicated croup, when left to nature, or unmitigated by treatment. In its slighter grades, hoarseness, with a hard rino-ino- cough, followed by a crowing or stridulous inspiration, present chiefly in the night and remit- tino- in the day, are almost the only symptoms ; the respiration and pulse being but little disordered in the intervals, and the febrile symptoms not very acute. But even these very favourable cases may experience sudden and dangerous ag- gravations ; whilst, on the other hand, the severe and acute disease now described may be soon ameliorated by early and decided treatment at its commencement, or by the discharge of tubular, membranous, or puriforra matters, at its more ad- vanced periods. 10. E. The duration of the disease depends upon the vital energies of the frame, and varies from two to eight or nine days ; but I have seen it terminate somewhat earlier,and prolonged much later when partial or scanty expectoration takes place from time to time. A fatal issue is most common on the fourth day. I believe that it very rarely assumes a chronic state, preserving at the same time its essential characters ; although a somewhat different opinion has been advanced by GoELis. The cases, however, which he has ad- duced as instances of the chronic disease, are evidently either the partial removal of the more inflammatory, with recurrence of the more spas- modic, symptoms ; or slighter relapses ; or the extension of the inflammatory action to the larger hronchi, and its continuance in this seat for a longer period. Alrers admits that it may be- come chronic, and supposes that the false mem- brane may sometimes adhere to the inflamed surface, and be gradually absorbed ; recovery at last taking place, without the excretion of the albuminous substances in such cases. These oc- currences, although not impossible, are at least very rare. Hii.denbrand supposes, on the other hand, that it may become chronic after the ex- cretion of liie albuminous exudation ; inflamma- tory irritation still persisting in a lower grade, and terminating at last in ulceration. This is a mucii more probable occurrence ; and I believe that I have met with it on two or three occasions, but I have never been able to verify it by dissection. In such cases, the disease continues in a slighter grade for several weeks, and is characterised by frequent remissions and exacerbations, emacia- tion, muco-purulent expectoration, slight sore- ness in the trachea, and the usual symptoms of traclieal consumption ; the patient sometimes sinking at last, or occasionally recovering by judi- cious means. 11. ii. The Modifications of Cnoup. — The forms which the simple or uncomplicated disease assumes are attributable, as already hinted, to the jmrticular part of the air-passagos chiefly afl'ectcd, to the temperament and habit of f CROUP — Modifications of. body of the patient, and the intensity of the causes. 12. 1st. Croup with predominance of the acutely injiammatory symptoms(t\\e Acutely Inflammatory Croup of several modern authors). — This is merely the more acute or severe form of the disease, occurring in robust plethoric children of the sanguine temperament, who have been for some time weaned, and have had their first teeth, and during cold and dry states of the air. It is commonly preceded by chills, and horripilations, and in older children by distinct rigors ; and is characterised by the more continued and unremit- ting severity of the symptoms, by tlie strength of the pulse, heat of skin, great difficulty and force of respiration, the vascular injection of the cheeks and lips, the highly inflammatory appearances of blood taken from a vein, &c. (a.) When the inflammation chiefly, or even partly, implicates the larynx (the Laryngeal Croup of Guersent and others), tiie strangulation, cough, and all the symptoms connected with respiration, voice, and speech, are extremely severe ; pain is felt in the larynx and upper part of the trachea, and there is sometimes slight swelling in this situation. In young children convulsions, and in older children delirium, occasionally occur towards the close. The disease terminates in from twelve hours to five or six days, but most commonly in two or three days. (6.) When the inflammation is co7i- fined to the trachea (the Tracheal Croup of several Continental writers), the cough is at first dry, shrill, or sonorous, as if passing through a brass tube, and accompanied with sharp and lacerating pain in the course of the trachea, sometimes with slight tumefaction. The patient speaks in an under tone, but there is little hoarseness, and the voice and speech are not lost, or at least not so much affected as when the disease is seated partly or chiefly in the larynx. Heat of skin, and the usual symptoms of severe inflammatory fever, are also present. As the disease advances, the cough becomes more frequent and severe, but without the distressing sense of sufl^ocation attending the foregoing modification ; nevertheless there is still much difficulty of respiration in the intervals between the cough, sometimes with a species of rattle similar to tiiat of bronchitis. The fits of cough are often followed by vomiting, or the rejection of membranous shreds, with a thick, glairy, and sometimes sanguinolent or purulent mucus. The excretion of this substance generally is productive of much relief, which is increased after each discharge, unless the inflammation has extended down the ramifications of the bronchi ; and then the respiration continues extremely dif- ficult, and the disease assumes all the characters of an acute bronchitis, and frequently terminates unfavourably. Tiie progress of cases of this de- scription is usually not so rapid, nor tiie termi- nation so fatal, as of those affecting the larynx chiefly. All the symptoms evince less severity, especially when treated early ; and it sometimes continues twelve or fifteen days, but usijally from five to nine. When its severity merely is sub- dued, the inflammatory action not being alto- gether removed ; or when, from accidental causes or the fault of the constitution, it passes down the bronchi ; it may be much more prolonged, and approacli the chronic character ; but it will then present many of the features of the most severe CROUP bronchitis, into which, indeed, it will thus pass ; and as was stated in respect of that disease, whilst bronchitis may be followed by croup, the latter malady may thus occasion the former. 13. 2d. Croup with predominance of bronchial $ymptoms (the Cynanche Tracheulis Humida of Rush ; the Mucous Croup of some modern authors.) — This form is not infrequent in young children of the lymphatic temperament, who are fat and flabby, with a white soft skin. It is often met with soon after the period of weaning, and in those who are brought up without the breast. It commences with coryza, and the other symptoms of catarrh, and often with little fever. After these signs have been present for some time, or sometimes without these being so marked as to attract attention, it generally attacks the child in tlie evening or during the niglit, and manifests itself in a decided manner by the sudden occurrence of a hoarse, suffocating, dry, sonorous, or shrill cougli, wiih a sibilous inspiration. 'l"he seizure is usually severe, and is attended with manifest alarm to the patient. The countenance is pale, and covered by perspiration, and the lips are violet. Several slighter fits succeed to this first attack ; the voice remains hoarse and low, the respiration sibilous and slightly difficult ; but a remission usually takes place in tlie morning, and there is gene- rally but little return of the croupal cough until evening and night, when it recurs, but often in a slighter degree. In some cases the invasion is more gradual ; the remissions but slight, or hardly evident, and the accession of expectoiation much earlier ; the disease approaching nearer, as respects its seat and character, to acute bronchitis. There is but little fever, the skin is not much warmer than natural, and the powers of life are not remarkably depressed. The throat and pharynx are unaffected. After the first, second, or third day, the cough is no longer dry, its fits become shorter, it is sometimes accompanied with a mu- cous rattle, and begins to terminate in the expec- toration of a thick glairy mucus. The disease now assumes many of the features of, or passes into, bronchitis. I\I. GuEnsHNx considers that this is merely a false or bastard croup. I be- lieve that it is a milder form of the disease ; and that it consists of a slighter degree of the inflam- matory irritation of the same parts which are aflected in the true croup ; but that, in conse- quence of the much less severity, or some other modification, of the diseased action, and constitu- tion of the patient, glairy mucus merely, instead of an albuminuos exudation of a firm consistence, is thrown out ; and that, when the features of bronchitis are assumed, the inflammatory action has extended down as far as the small bronchi. 14. 3d. Of croup with predominance of spas- modic and nervous stjrnptoms (the Lari)ngis7nus Stridulus of Good ; Spasmodic Croup of Wicn- MANN, ISIicn.\ELis, DouBLE, &c. ; and the Acute Asthma cfLfants of Simpson and ^Millar). This variety of croup has been described by German and French authors, under the name of Millar's Asthma, and has given occa.sion to much discus- sion relative to its being a variety of croup, or a distinct disease. Of its being the former, how- ever, there cannot be the least doubt. It occurs chiefly in children who are weak, in itablc, sub- jects of worms, and of the nervous temperament; and conies on most commonly in the night, often MODIFICATIONS OP. 453 during the patient's first sleep, frequently without well-marked premonitory symptoms, excepting languor, listlessness, headach, fretfulness, and sometimes a short tickling cough ; and these may be slight, or of short duration. The child is sud- denly wakened by great difficulty of breathing, cough, and general agitation, and continues thus afTected for some time ; the .symptoms gradually subsiding towards morning, or being more quickly relieved by the cough terminating in vomiting. This form of the disease always presents complete remissions during the day, with exacerbations in the evening and night, and thus assumes a regular type ; but the remissions often become less com- plete and of shorter duration, the exacerbations more frequent and prolonged, and the cough, difficulty of respiration, general agitation and convulsive movements attending them, more se- vere. There is little or no increase of animal heat or fever, nor actual pain in the larynx and trachea, but a sensation of constriction and un- easiness. The countenance is generally pale in the remissions, and sometimes tumid and livid in the exacerbations, during which the respiration becomes sonorous, laboriuus, convulsive, and croaking ; the extremities are usually cool. The cough continues dry, and accompanied with marked irritability, until the favourable ter- mination of the disease ; when slight or moderate glairy expectoration takes place, but without any membranous substances mixed with it. The pulse is very variable; sometimes small, frequent, and constricted ; occasionally slow ; but gene- rally at last unequal, weak, or intermitting. The urine is paler than in the common and more in- flammatory slates of the disease, in larger quan- tity, and sometimes deposits a nebulous sediment. In this variety, the nervous and spasmodic symp- toms are present from the commencement ; in the former, they appear chiefly in the two last stages ; the more common and inflammatory croup some- times thus passing into the spasmodic. 15. Such are the usual characters of the well- marked spasmodic variety of croup ; but cases of so pure and unmixed a form are comparatively rarely met with in practice ; as the intermediate shades between the state of disease now described and either of those preceding, are more commonly observed, at least in this metropolis and vicinity. I have scarcely ever seen a well-defined case un- connected with dentition ; or one terminate fatally without the occurrence of convulsions in its ad- vanced stages, or towards its termination ; and it has very commonly presented evidence of cerebral congestion. On dissection of fatal cases, M. GuERSENT slates, that albuminous concretions — sometimes extensive, but more frequently con- sisting of small isolated patches — are found in the larynx ; whilst Millar and Rush detected little or no lesion of the air-passages. In the very few opportunities I have had of examining the state of parts in the more purely spasmodic cases of croup, an adhesive glairy fluid, with patches of vascularity, were observed in the epiglottis and larynx, and a similar fluid was found in tlie lar?e bronchi. Congestions of the brain, particulady about its base and medulla oblongata, and of the lungs, cavities of the heart and large vessels, were also found ; but these were most probably consecutive changes merely. 16. iii. Complications OF Cuoup. — A. With Gg3 454 CROUP — Complications of. Cynanche maligna. This complication is distinctly j and larynx. The croup which has been described alluded to by Johnstone, Witheuing, Cullen, and several contemporary authors ; and is common in the epidemic visitations of this disease, or of anginous scarlatina ; the greater number of fatal cases exhibiting soft fragments of false membranes, of a greyish or ash colour, covering the larynx and trachea, and a livid appearance of parts of the subjacent mucous membrane. This is one of the most dangerous complications of the disease. 'I'he affection of the air-passages is here consecutive, and the difficulty of swallowing usually precedes the characteristic symptoms of croup, which are ge- nerally accompanied with great foetor of the breath. — a. In many instances of the malignant sore throat, the exudation thrown out from the inflamed surface forms a pellicle co-extensive with the spread of the inflammatory process from the fauces to the pharynx and air-passages. In some cases, ulcer- ation, and slight apparent sloughing, occur in the central parts, and those first affected ; whilst the surrounding surface, and parts subsequently dis- eased, become covered by a soft and easily la- cerated exudation. In rare cases the inflam- mation commences in the pharynx (^Cynanche Pharyngea), and spreads to the fauces on the one side, and down the larynx, trachea, and oeso- phagus on the other. In these, the pellicular exudation formed on the inflamed surface very nearly approaches that of croup ; oftener, how- ever, it is of a darker and dirtier colour, softer, and not so continuous ; whilst in some cases it is formed in patches, is similar to thin sloughs, and is interrupted in parts by a dark, foul, but not concrete secretion ; the subjacent mucous surface being of a dark, livid, or brick-red colour, or ulcerated, or even partially sloughed. Sloughing, however, or even ulceration, although mentioned by several writers, is comparatively rare ; the more frequent commencement of the faucial or pharyngeal complication of croup being attended by the pellicular or concreted exudation now mentioned, without sloughing, 'i'he above changes are most remarkable in the pharynx, and are slighter in tiie larynx and trachea ; the ex- udation being there somewhat paler, and from its colour and appearance very generally mistaken, both while adherent to, and whilst being detached from, the inflamed surface, for sphacelated sloughs, particularly as observed in the throat, and described as such. The complication, with cronp,of various states of angina or sore throat — malignant, or epi- demic— whether commencing in the pharynx, or in the fauces, and extending to the pharynx, is not uncommon. Epidemic visitations of it have occur- red in very modern times, and have been described by Hamilton, Deslandis, Eouroiois, Bre- TONNEAu, Trousseau, Moronval, Emangard, ScHMiDTMANN, and others. — 0. In some cases the affection originates in the inusils (Cyinivche Tonsillaris, &c.) and extends to the adjoining parts. In the croup epidemic in 15uckinghamshire in 1793, and described by Mr. Rumsky, thecroupal symptoms were stated to have been coeval with " inflammation and swelHng of the tonsils, uvula, and velatum pendulum palati ; and large films of a wliite substance were formed on the tonsils." iSimilur appearances have likewise been noticed by Feiiuiah, Hosack, JVIackkn/ie, llonKRTS(>N,and BouiuiEoisand by myself : thepellicularcxudation extending over the fauces, down into the pharynx by Louis, HuFELAND, and otiiers, as occurring in adults, was thus complicated. The complication with the malignant sore throat has been observed by me bothin its simple form and in its association with scarlet fever. Some years since, I attended, early in the winter, some of the children of a numerous family residing a few miles from town, in a low and damp situation. They had had scarlatina, with very severe sore throat, two or three years previously. On this occasion, one of the oldest was seized with malignant angina, extending to the pharynx, and along the Eustachian tube to the ear, with foetid respiration, and irritation of the larynx, producing a constant tickling cough. A similar affection spread to four of tlie younger children, and in two of them it was complicated with croup; the symptoms of which were severe, continued, and well marked in one, and more spas- modic and intermittent in the other. In these, ash-coloured exudations covered the greater part of the fauces and tonsils, and extended down into the pharynx. They recovered with difficulty, by the means hereafter to be noticed. 17. B. Croup may be also complicated with Thrush. — Cases of this description are rare. I have seen only two of which I have taken any account. This association has also been observed by .Tu- niNE, Double, Pinel, and Royer-Collard, who notice the adynamic or ataxic character of the fever accompanying it ; the adynamic state being the consequence chiefly of this associated disorder, supervening upon pre-existing disease, generally of the digestive mucous surface, and often, moreover, in a weak and cachectic system. The patches of pellicular exudation in the mouth and throat characteristic of thrush, had extended down the pharynx, larynx, and part of the oeso- phagus, in these cases ; death having been oc- casioned by the consequent irritation, and frequent recurrence of spasm of the larynx. In the only one I had an opportunity of examining after death, there was little or no inflammation in the trachea ; but there was considerable vascular injection of the pliarynx, epiglottis, and larynx, which were covered by a cream-like exudation, their mucous membrane being softened. The trachea and bron- chi contained some flocculent viscid mucus ; and the digestive villous surface, particularly in the upper part of the oesophagus, stomach, and por- tions of the small intestines, was softened and in- flamed. In all the foregoing complications, the affection of the larynx and epiglottis is generally more remarkable than that of the trachea. 18. C. With the exanthematous fevers. — a. Croup sometimes comes on during the eruptive fever, or efflorescence of measles; when it oc- casionally assumes more of the remitting and spasmodic character, and is seldom very severe or dangerous. In this case it generally subsides as the eruption becomes abundant. But it also supervenes upon the extinction of the eruption ; or it does not appear until during or after de- squamation ; and, in some instances, not until advanced convalescence. When this occurs, the inflammatory fever soon passes into an adynamic state, and the disease assumes a severe form, with spasms of the larynx, often terminating with convulsions and suflbcation. In one instance of this kind that occurred in my practice, much swelling and oedema of the throat appeared ex- CROUP — Terminations — Prognosis. 455 ternally, and aggravated the symptoms ; recovery, however, unexpectedly took place, with a free discharge of glairy mucus, and concrete fragments of membrane. In another instance, emphysema of the throat occurred, and gradually extended over the neck, chest, and face. Permission was not obtained to examine the body, so that the channel through which the air had passed from the respiratory passages into the cellular tissue could not be exactly ascertained. — b. The complication wilh small-pox has been very particularly noticed by PiNEL, Albers, ViEussEux, and Rover- CoLLARD, and is not uncommon. It usually occurs in the more severe cases, particularly when the disease is confluent, and generally comes on slowly in the suppurative stage. In the more malignant cases, the difficulty of respiration is ex- cessive ; the voice very hoarse or suppressed ; the paroxysms of suffocation are extreme ; the cough dry, or giving issue merely to a small quantity of dirty serum, or muco-sanguineous or dark sangui- neous matter ; and the attendant fever adynamic. On dissection, a membranous substance is seldom found in the larynx ortrachea, but merely portions of a semi-concrete matter, with spots of intense in- flammation in these parts, the epiglottis, and large bronchi. — c. The complication with scarZe^yei'er is never met with excepting thisdisease be associated with sore throat, especially when malignant or epi- demic (§ 16.) ; and it is then a frequent cause of death. — il. The association, or rather the super- vention of croup on erysipelas, particularly of the head and face, occurring in adults, has been ob- served by FoRESTUs, (Opera, 1. xv. obs. 20.), Latour, Stevenson, and Gibson (Trans, of Med.- Chirurg. Soc. of Edin. vol. ii. p. 95.), and in seve- ral instances by the author. In those cases, the inflammation and characteristic exudation spread from the fauces to the air-passage. 19. D. With other diseases. — a. Croup is some- times associated with acute bronchitis ; and when it terminates fatally, it is often in consequence of extension of the inflammation to the bronchi, and thence to the substance of the lungs, pneumonia thus also supervening. But the croup may also, although much more rarely, be consequent upon bronchitis. — b. It may occur in the course of pertussis, and it then usually assumes the re- mittent and spasmodic or the bronchial forms. — c. Lastly, it may be associated with wsophagitis ; but when this is the case, the inflammation with albuminous exudation usually commences in the pharynx, and extends down the cesophagus, and to the larynx. This is not an infrequent occur- rence in children under two or three years of age ; as, indeed, ]M. GuERSENxhas remarked ; the larynx and epiglottis being the only parts of the air-passages affected ; and these chiefly with spasm, from the irritation of the portions of false mem- brane covering or coming in contact with them. 20. II. Terminations and Prognosis. — Croup may terminate — 1st, in recovery ; 2d, it may pass nito or excite some other disease, — a return to health, or a fatal issue, taking place mediately through it ; 3d, in death, either from exhaustion of the vital energies, or from suffocation. A. A return to heailh is indicated by the mild form of the disease ; by the quiet res[;iration whilst the cough is absent ; by the moderate excitement and frequency of tiie pulse ; by a looser cougii and a more natural state of voice, followed by expec- toration of viscid mucus, and membranous frag- ments ; by a copious and general persjiiration on the third day, the symptoms being moderate ; by epistaxis on the second, third, fourth, or fifth days ; by the absence or subsidence of violent at- tacksofspasmof theglottis,andsuftbcation ; bvthe simple and uncomplicated state of the disease ; and the absence of exhaustion, or of great frequency or irregularity of pulse, and of other signs of adynamia. 21. B, It may excite additional disease, or pass into some other malady, — a circumstance which, although not necessarily fatal, may greatly in- crease the danger. The morbid state of the system, and general depression of vital power accompanying most of the complications now noticed ; the more constant affection, and dispo- sition to spasmodic action of the larynx, in all of them ; the interruption caused to the respira- tory processes, and the attendant or consequent congestion of the lungs, as well as the marked disposition they create to consecutive disturb- ance ; greatly augment their danger generally. The disorders consequent upon the simple and complicated states of croup are both direct and indirect. The direct are — a. Extension of inflam- matory action to the bronchi and substance of the lungs, — generally an unfavourable event, and indicated chiefly by the unremitting persistence of the symptoms, by deep suflPocating paroxysms of cough, great frequency of pulse, lividity or leaden hue of the countenance, by the dark tinge of the lips and tongue, cold clammy per- spirations, somnolency, and all the characters of asthenic Bronchitis (§ 37.). When the bronchial affection does not appear until during convalescence, it is more slight, unless the causes have been energetic, and it presents more of the usual characters and states of that disease. The consecutive occurrence of either pneumonia or any of the forms of bronchitis should be carefully enquired after, by observing the symptoms, and examining the chest by auscultation. — b. P2xten- sion of disease to the sub-mucous and follicular structures, occasioning inflammation and ulcer- ation of these tissues, with symptoms of laryngeal or traciieal consumption upon the subsidence of croup, is a much more rare occurrence than the preceding ; but, when it takes place, a muco- puriform expectoration accompanies and follows the characteristic discharge and signs of croup, with pain and irritation in the larynx and trachea, recurring exacerbations of suffocating cough, and difficulty of breathing, chiefly of a spasmodic description, particularly when the inflammatory irritation is seated in the larynx or epiglottis, and the usual symptoms of hectic. The very marked tendency, also, of the disease to relapse, is in a great measure owing to the persistence of a slight degree of inflammatory action in the large bronchi, or in the trachea and larynx, for some time after the membranous exudation on the diseased surface has been thrown oft'; the dis- oider being readily aggravated upon exposure to the exciting causes. This disposition of the dis- ease to return diminishes with the length of time that has elapsed from the subsidence of the ori- ginal attack, but docs not altogether disappear for many wteks, or even for months, especially in some constitutions, and in the Inst and first nionllis of the year; and even more than one relapse may take place in weak, irritable, and G g 4 456 CROUP — Diagnosis. nervous frames, but generally in a more spasmodic form. — c. Besides producing these, it may occa- sion, although very rarely, abscess in the vicinity of the larynx or trachea. I believe that dilata- tion of the bronchi is a much more frequent re- sult.— d. Of the more indirect terminations and consequences of this disease, congestions of the encephalon, giving rise to convulsions and effusion of serum in the ventricles, or between the mem- branes, are the most important. In many cases, particularly in delicate and nervous children, the convulsive movements seem to commence with the spasmodic actions of the laryngeal muscles, and the strangulation thereby occasioned ; the head and neck being thrown back, and all the limbs convulsed. Life is in some cases thus ter- minated by asphyxy. Jurine, Vieusseux, and myself, have met with cases of hydrocephalus following the disease ; but they are not common. 22. C. Danger is to be dreaded, when fever is very high early in the disease, and when respir- ation is permanently audible, cooing, and labo- rious, or as described above (§ 7.). When the disease goes on to the third stage, notwithstand- ing the treatment ; when it presents any of the complications (§ 16.) and consecutive affections (§ 21.) already noticed ; when the discharge of the characteristic exudation does not take place, or when the expectoration of fragments of it is not followed by any relief ; when the counte- nance becomes livid or leaden, the eyes sunk, the lips and tongue dark, and the pulse very fre- quent, small, weak, and irregular; and the other symptoms of vital exhaustion appear ; great danger exists. A fatal issue is to be expected when the patient presents the appearances described as characterising the third stage, particularly those noticed as marking its close {§ 8.). 23. III. Diagnosis. — The hoarseness, and the loud, sonorous, and ringing cough ; the forcible and difficult inspirations; flushed face; injected and watery eyes ; the frequent and hard pulse, with thirst and inflammatory fever, tiie heaving of the thorax and motion of the trachea, in the developed stage; and the husky choking cough, the whispering voice, and wheezing respiration, &c. of the third stage ; sufficiently distinguish this disease from any other. When it is uncomplicated, nothing beyond a slight redness is ever observed in the throat ; and there is little or no pain upon deglutition, unless the larynx be much affected. — a. Croup can scarcely ever be mistaken for Cynanche maligna, or C. Pharyiigea, or any other form of sore throat, as long as these affections do not extend to the larynx ; as the great difficulty of deglutition, and the but little disturbed state to simulate croup; and in many cases it even amounts, as already stated, to a slighter form of the complaint, which usually disappears as the eruption becomes matured ; but attention to the symptoms will readily show the nature of the disorder, and how far the affection of the larynx and trachea should be viewed as a symptom, or as an important complication of the exanthema- tous disease. — c. Croup may readily be distin- guished from bronchitis, by its sudden and severe attack ; its occurrence in the evening and at night ; its remissions ; the hoarseness, and the ringing, dry, and frequent cough ; the difficult inspirations, and impeded respiration ; the altered voice and speech ; the sensations and symptoms referrible to the trachea in the former, and to the sternum and chest in the latter ; and by the absence of expectoration until late in the disease, when it is membranous or tubular, and not mucous and inuco-puriform, as in bronchitis, until after the discharge of the membranous exudations. These characters will also serve to indicate the supervention of croup on bronchitis, — an occurrence which is sometimes observed, although much more rarely than that of bronchitis on croup. — d. Laryngitis is with greater difficulty distinguished from croup than the foregoing, and in many respects there is little or no difference. The practical importance of the diagnosis may not appear great, but it is sufficiently so to war- rant an accurate distinction. 1st. True laryngitis occurs in adults ; seldom, in children, in any other form than associated with either the simple or complicated states of croup. 2d. It is a purely inflammatory disease, attended by a fixed burning pain in the larynx, increased on pressure and examination ; and, when attacking adults, never gives rise to a false membrane, unless it be superinduced in the specific and epidemic forms of cynanche, and then it assumes modified charac- ters. 3d. It more frequently terminates in the manner characterising acute inflammations, viz. ulceration and suppuration, than when the larynx is affected in croup. 4th. It is more acutely and constantly inflammatory, the symptoms are more continued, and it is more benefited by a purely antiphlogistic treatment, than croup. 5th. It much oftener passes into the chronic form, than the latter disease. (See Labvnx — Injlamnuitions of.) — e. Chronic laryngeal and tracheal injiammation — the laryngeal and tra- cheal consumption of some writers — resemble croup, in the hoarse voice, harsh dry cough, and the difficulty of respiration ; but their progress is much slower, and less acute than croup ; they do not present the violent paroxysms towards Idren of respiration, independently of the obvious af- | night ; they seldom or never are observed in fection of the throat, &:c., are sufficient to distin- guish between them. When, however, portions of the concreted exudations in these affections irritate the glottis, they occasion a short, tickling, dry cough ; and even excite, in some cases, stran- gulating spasms of the larynx, nearly resembling nd ulceration of these parts of the air- passages is always found in fatal cases. — f. Croup may also be confounded with the diffusive inflammation which sometimes attacks, either primarily or consecutively , the cellular tissueabout the throat, or with abscessesin the same situation ; croup, "particularly when it is complicated with ' either of which may involve the larynx and mem- these maladies. If, however, it be thus associated, branous part of the trachea, or so afii?ct them as the croupal characters, in addition to the appear- | to give rise to croupal symptoms ; but the ex- ances in the throat and pharynx, will be too evi- i ternal appearances, the difficult deglutition, the dent to be misunderstood ; the descriptions already | state of the throat, and the history of the case, given of these complications being sufficient to' will at once show the differences existing between point them out. —ft. During the ei'uptive fever of i them. — g. Pertussis and croup can hardly be TOC((s/»(s, the tracheal affection is often so great as , mistaken for each other; the invasion, chai-ac- CROUP — Causes op. 457 ters, and progress of both diseases being so very different. The prolonged whoop, the unchanged voice, and the occurrence of the cough in con- vulsive paroxysms after a meal, terminating in vomiting and a copious discharge of a clear and glairy fluid ; the complete intermissions, respira- tion, voice and speech remaining unaffected ; the almost entire absence of fever, and the much more slight and chronic form of the latter disease in its uncomplicated state ; are sufficient distinc- tions. Croup may, hovt-ever, occur in the course of hooping cough ; but then its characteristic symptoms will make it apparent to the attentive observer, and point out the nature of the resulting association. — h. The effects following si/ftsfanres that have escaped into the trachea often resemble croup; but may be distinguished from it by the sudden occurrence of pain and suffocation ; by the frequent change of the exact seat of uneasiness with the change of the situation of the foreign body ; the dryness of the cough, and the violence of the strangulation; and by tlie irregularity, the completeness, and sometimes the long continuance of the intermissions. When a foreign substance passes into the glottis, and is retained there, suffo- cation is generally occasioned either from the size of the substance, or from the spasmodic constric- tion of the muscles of the larynx occasioned by it. — i. Hysteria may also simulate croup; but the age of the patient, the history of the case, and the local and general symptoms, if attentively ob- served, will indicate the nature of the affection. — k. The spasmodic states of croup closely approach to convulsive spasm of the lari/nx ; but the absence of cough and fever, the brief fits of strangulation, the complete intermissions, the spasm of the thumbs and toes, the purplish countenance, and the general con- vulsions,willdistinguish that affection from any form of croup. (SeeLARVNx — Coiivulsive Spasm of.) 24. IV. Causes. — A. a. Croup is more fre- quent in cold and moist climates than in those which are warm. Rapid and frequent vicissitudes of season, weather, and temperature, have consi- derable influence in producing it. Hence its prevalence in the valleys of Switzerland and Savoy, in this country, particularly on its eastern side ; in the other north-west countries of Europe ; and in North America. But the middle, and even the south of Europe, are not exempt from it. M, Valentin has shown its frequency in the middle and southern provinces of France, Goelis in Vi- enna, and Ghisi in the north of Italy. SirjAnirs M'G rigor notices its prevalence — probably in a complicated form, from its occurrence also in adults (§ 25.) — at Bombay, in 1800. According to the information given by J urine, Lentin, Cheyne, and others, we might be led to infer that it has been more common in very modern times than formerly : the difl^erence may, however, be owing to its having been mistaken for some other affection. I believe that it has not been so fre- quently met with during the preceding five years, as it was about twenty or thirty years ago. M, J URINE remarks, that, although the table he has given of the number of cases from 1760 to 1807, shows a nearly progressive increase, yet he has observed, at Geneva, no increase during the last eighteen years preceding the dale of his work. The following evidence, nevertheless, would render it evident, that, in some countries at least, croup is more prevalent now than for- merly. According to the i nformatlon given by Dr. CooKSON, a practitioner of forty years' expe- rience in Lancaster had never seen it until 1760. Dr. Friedlander (^Journ. de MontpeUier, No. IX. p. 276.), states, that it has become yearly more prevalent in Vienna; and that the physician to the Hospital for Children, who had treated, from 1774 to 1817, nearly 60,000 children, did not meet with a single case in the three first years of his practice, saw it but rarely during the next six years, and yet treated 1665 cases of it in the last five years of this period. Similar facts are also furnished by Dr. Goelis. Although croup occurs at all seasons of the year, it is most preva- lent in those which are cold and moist, or when the alternations of temperature are sudden and re- markable. I have observed it more frequently in the months of January, February, March, April, November, and December, especially if east or north-east winds prevail after heavy or continued falls of rain. I believe that the above results are nearly in accordance with those furnished by JuRiNE, Crawford, Michaelis, Double, and Bricheteau. 25. b. The great susceptibility of early age, and the narrowness of the larynx previously to puberty, have generally been supposed to favour the occurrence of croup. M. Blaud, however, denies that this latter circumstance has any in- fluence in causing it. This is doubtless the case in respect of the production of the disease, but not as regards its severity and danger, both of which it evidently increases. It is rare to meet with croup until after the child has been weaned : I have, however, seen it in children at the breast, as early as three, four, five, and six months of age ; but much more frequently at this age in those who have been brought up by hand ; and in a still greater number of instances, at from seven months to upwards of a twelvemonth, in those which have been recently weaned. M. Duces states, that he met with an instance of it in an infant of a few days old. The age at which the disease is most common is, according to my expeiience, from one yearto nine. But it not infrequently occurs at both an earlier and a later period. Van Bergen states, that it is often observed from the age of two to five years inclu- sive : Home assigns from fifteen months to twelve years: Crawford mentions some cases from fifteen months to two years, but gives the age of from two to eight as the most common: Cheyne, from sixteen months to twelve years ; Salomon, from two to five years inclusive ; Michaelis, from fifteen months to ten years ; Zobel, from the latter months of suckling to nine years ; Vieusseux, from seven months to ten years: Bernard, from one to six years ; Barthez, from two to ten ; RujisEY, till fourteen ; and Caillau, from eighteen months to eleven years. The foregoing applies only to the simple and uncomplicated dis- ease. When it occurs in a complicated form, or consecutively upon anginous affections, particu- larly upon inflammation of the pharynx, tonsils, or fauces, or on the exanthematous diseases, it may, and, indeed, occasionally does, occur in adult subjects, and in infants of a more tender age. The cases published by JM. Louis, and denomi- nated by him croup in the adult, were instances of the anginous complication. Although the oc- currence of uncomplicated croup in adults is very 458 CROUP —Causes of. rare, cases have been observed by Hosack, Mit- chell, Mills, and Latour. 26. c. M. Blaud and Dr. Albers observe, that boys more frequently contract the disease than girts, owing to tlie greater exposure of the former to its exciting causes. Tiiis opinion has been opposed by MM. Double and Royer- CoLLARD ; whilst Dr. Jurine states, that of ninety-one cases he treated up to 1808, fifty-four were boys, and thirty-seven girls ; and of twenty- eight cases which occurred in 1808, eighteen were boys, and ten girls. According to his observation, also, the greater number of cases occurred at the ao-e of two, three, and four years ; and next at one, five, and seven. This accords with my own experience, which is further supported by that of Goelis, who, from 1797 to 1808, treated 252 cases of the disease, of which number 144 were boys, and 108 girls. 27. (/. The nervous and sanguine temperaments, or a mixture of the two — the spasmodic charac- ters predominating in the former, the inflammatory in the latter — with a tendency to a fulness of habit, seem to predispose to croup. That it will, however, often come on independently of ple- thora, cannot be disputed. I have seen it in infants of about four months old, brought up by hand ; and even in these, soon after having lost much blood in the treatment of other diseases, especially when cold easterly winds occur in the spring or autumn, after heavy falls of rain. Cheyne, and some others, conceive that an here- ditary tendency exists in croup. But this is not made out: for, as M. Desruelles has judiciously remarked, the only proof that can be brought in support of it, is the circumstance of two or more children being seized with it in the same family ; an occurrence which may be explained by the susceptibility of age and temperament, being often necessarily the same in several of them ; and by their being exposed to the same agents, and placed under similar circumstances. 23. e. The localities in wliich this disease seems most prevalent are those wliich are low and moist, near the sea, on the banks of large rivers or lakes, or near marshes, in the depths of low valleys, or at the bases of precipitous mountains. Hence the endemic character, which some writers have imposed on it, but which is not strictly applicable ; for, although it is more frequently observed in the above situations, yet it is also often met with in places very oppositely circumstanced; and it cannot therefore, strictly be said to be an endemic disease. 29./. The epidemic prevalence of croup has been contended for, and denied, by writers. Some consider it as entirely sporadic and acci- dental ; others suppose that it may become epi- demic consecutively upon catarrhal epidemics, and that it has no other claims to such a cliarac- ter ; whilst many believe that it occasionally ap- pears in an epidemic form. That it has so oc- curred in former times appears evident. Baillou manifestly observed it in an ci)ideiiiic form, in Paris, in 1570; Giiisi, at Cremona, in 1747; Starr, in Cornwall, in 1748; Hosenstein, in T'psal,&c., in 1762; Van Behoen, in Frank- fort, in 1764; AVai.iip.om and I^aeck, in some parts of Sweden, in 1768 and 1772; Barkir and iMosT, in some places in the United States; Aui kn- iiiKTii, alStiitgardt, in 1807 ; Aliuhs and others, in parts of Saxony, in 1807 and 1808 ; Sciimidt- MANN, in 1811 ; and various other writers during the last fifty years. My own observation would lead me to infer, that, although croup is generally a sporadic disease, occurring occasionally at all seasons, yet it sometimes assumes epidemic fea- tures, both in respect of its simple state, and its complications with other species of angina, par- ticularly at periods when they or catarrhal affec- tions prevail — the seasons favourable to the production of these diseases most frequently occa- sioning this malady also. This opinion derives support from the numerous facts furnished by RUMSEY, PiNEL, JuRINE, GoELIS, AlBERS, Royer-Collard, Bricheteau, Bretonneau, and other writers referred to at the end of this article, 30. g. Several authors, particularly Wichmann, Boeiimer, Field, Rosen, Goelis, Lobstein, Guersent, Louis, Shultz, and G, Gregory, have adduced facts to show that the disease may occasionally prove infectious. The two early Swedish writers comtemporary with Home, namely, Halen and Wahlbom, assert its infectious nature. On the other hand, this property is denied by Chalmers, Michaelis, Tiiilenius, Double, and Albers. It has most indubitably manifested this property when it has prevailed epidemically, and when associated with cynanche maligna, and some other exanthematous or anginous affections. On several occasions, however, of its occurrence within a short time, in two or more members of the same family, it has evidently proceeded from the same causes acting upon similar states of sus- ceptibility and disposition. But even tlie simple form of the disease has appeared in children who have slept in the same bed with another affected by it. Two or three such cases have occurred under my own observation ; and others are recorded by GoELis, and some other authors now mentioned. Whether or not it was produced in these cases by inhaling the air respired by the affected child, or by the causes above stated, may be disputed. Yet it is probable that the air which has been re- spired by the affected may sometimes be a con- current or determining cause of it in others. 31. B, Although the foregoing may be consi- dered as predisposing causes merely, yet they are very commonly the onlye.TcJfin^ cowses which can be detected. There is no doubt, however, that the causes which occasion common catarrh and bronchitis sometimes also give rise to croup. It is also not infrequently excited by, or at least conse- cutive of, bronchitis, hooping cough, the various forms of cynanche, measles, erysipelas, and scarlet fever ; and it occasionally also appears during ad- vanced convalescence from these, especially the latter ; and, indeed, from other acute diseases. Also running against the wind, crying, and exertions of the voice ; cold acting in any manner, or upon any part of the body, particularly upon the neck and throat ; having the hair cut short during cold or windy weather ; habitual exposure, and the laying aside the accustomed covering of the neck and chest; and even accidental attempts at swallowing substances of an acrid nature, or of a very high temperature ; have sometimes produced croup. The retrocession of the above eruptive diseases, and the suppression of other eruptions, or of dis- charges, secretions, and excretions, are amongst its most fre(iuent causes. 32. V. 1'atiiology or Croup. — i. Lesions observed in fatal cases, A precise idea of the CROUP — Pathology of. 459 organic changes which take place in the course of the disease is necessary to enable us to devise, at the commencement, appropriate means, both for their prevention, and for their removal when prevention is unattainable. The lesions observed in fatal cases, and present in all, to a greater or less extent, may be referred to two heads. — 1st. Inflammation with tumefaction, redness, in- jection of the blood-vessels, and slight softening of the mucous membrane of the air-passages. 2d. An albuminous exudation in the form of a false membrane, or a thick, glutinous, and stringy mucus, or both. (See Bronchi and Air-Pas- SAGES — Lesions of, § 12.) A, The former of these is usually observed, varying, however, in respect both of intensity, and extent of surface affected. In some cases, they are limited to the upper part of the trachea ; in others, they extend to the larynx, or to both the larynx and first divisions of the bronchi, or to the latter merely ; and, in complicated cases particularly, or when the dis- ease assumes a seemingly epidemic, or even infec- tious character, the inflammatory states now enumerated, with the characteristic secretion, exist also in the pharynx and fauces, and advance downwards to the ramifications of the bronchi. In the most acute forms of the disease, the mucous surface of the trachea and larynx assumes the above inflammatory appearances in the course of a few hours. In the second stage of the dis- ease, it becomes streaked, or partially covered by an albuminous, and sometimes a sanguinolent exudation ; and in the last stage, this exudation has concreted to a more or less complete mem- brane ; the inflammatory states of the surface underneath still remaining, but in a less distinct manner, and occasionally in patches or streaks only. In some cases, the injection of the vessels, and tumefaction of the surface, are but slight, yet the exudation of a thick concrete membrane exists to a considerable extent ; in others it is thin and scanty, or almost entirely consists of a thick tena- cious mucus. 33. jB. The morbid exudation varies much in consistence, in quantity, and the extent of surface covered by it. In some complicated or consecutive cases, already alluded to, a false membrane has formed from the fauces to the last ramifications of the bronchi. MM. Bretonneau and Bricheteau have observed it without any breach of continuity throughout the whole of this extent. I have never met with an instance where it was so extensive, without interruptions, particularly in the bronchi and about the larynx. In the greater number of the pure uncomplicated cases of the disease, the concretion exists princi- pally in tiie upper part of the trachea. In tlie more acutely inflammatory, it extends to the larynx and epiglottis ; in others, to the first rami- fications of the bronchi; and in a few, in both directions. In the complicated cases, and in those of an apparently epidemic and infectious nature, the throat is equally affected, constituting the Diphtherite, or the Infiammution pelliculaire of'M- Bretonneau. This false membrane is whitish, greyish white, or passing to a greyish yellow. Its thickness varies considerably. JMichaelis and Bard consider a line and half, or two lines, to be its utmost thickness. I have certainly seen portions quite as thick, but not thicker, and sometimes evidently consisting of two or more distinct layers. It is thickest in the posterior and superior part of the trachea, and thinnest about the larynx and epiglottis, when it extends thither, and in the lowest and anterior part of the trachea. Its consistence and tenacity also vary extremely, not only in different, but also in the same case. It is almost universally softest where it approaches the bronchi, where it generally passes into a thick glutinous mucus. The more consistent and firm it is, the more per- fectly is it moulded upon the surface from which it was secreted. But when the consistence is slight, it forms merely membranous shreds, or soft polypous concretions, intermingled with a thick glutinous mucus. The interior of those exudations is generally covered with a whitish tenacious mucus ; and their exterior, or the surface which has been in contact with the inflamed mucous membrane, is sometimes dotted with minute specks of blood. In some cases, these concretions are found still adhering to the surface on which they are formed ; in others, they are eitiier partially or altogether detached from it by a puriform mucus. 34. The state of the exudation varies with the stage of the disease, the intensity of the inflam- mation, and the treatment which has been adopted. Thus, when a child dies very early in the malady, instead of the albuminous coating above described, a tenacious, or reddish, frothy mucus is only found. In this comparatively rare case, the spasm of the air-passages attending the inflam- mation, together with the obstruction occasioned by this mucus, has produced asphyxia. It seems that this glutinous exudation becomes more con- densed, and moulded into a false membrane, or partially assumes this state, as the disease advances. (See Bronchi and Air-Passages.) 35. C. In many cases, instead of a mem- branous exudation, a viscous, niuco-puriform matter lines the trachea only, or both the trachea and larynx, as remarked by Frank, Vieusseux, Valentin, Double, Desruelles, Bricheteau, Blaud, and Odier. This substance is whitish, greyish, or yellowish grey, and occasionally floc- culent. It is not infrequently formed in con- siderable quantity in the more acutely inflamma- tory cases (§ 12.), and particularly in those which terminate fatally in some hours. It seems as if the quantity of thick viscous matter thrown out on the inflamed surface, together with the spasm of the trachea and larynx, occasioned suf- focation before it could be condensed into a membranous substance. Cases of tliis description have been particularly noticed by M. Hoybr- Collard, and have occasionally come before me in practice. I liave sometimes also observed a thick, stringy, and adhesive matter, of a greyish white colour, in the superior and posterior part of the trachea and larynx, obstructing the passage, the mucous membrane underneath being nearly altogether exempt from redness and tumefaction. In some instances, this matter has presented a muco-puriform character, varying m its shade of colour, but extremely thick and adhesive. A similar appearance has been remarked by Des- ruelles, Double, Blaud, and Brichetau. Owing to the absence of the usual marks of inflammation in the situation where this accumu- lation has been met with, it may be presumed that the inflammatory marks had partly dis- 460 CROUP — Pathology appeared after the discharge of tliis matter; its secretion promoting the resolution of the inflamma- tory action, the remaiaing signs of which had vanished after death ; the accumulated secretion which had been instrumental in occasioning disso- lution alone presenting itself, the powers of life having been insufficient for its excretion. I have suspected, from observing tlie progress of other cases, that the inflammatory action sometimes had commenced in the bronchi, and extended upwards along the trachea, and that the secretion now noticed had been chiefly furnished from the larger bronchial ramifications, and had become so thick and adhesive when it arrived at the upper part of the trachea and larynx, as not to have been expelled by the cough, but to have excited spasm of the glottis, and thereby produced suffoca- tion. In some instances of this description, more decidedly inflammatory appearances were ob- served in the larger bronchi than in the trachea. It is probable in these, that the secretion found in the latter situation proceeded chiefly from the former, and that the injection of the vessels in the mucous lining of the trachea had disappeared after death. 36. D. Any very remarkable lesion of the tissues subjacent to the mucous surface has not been found, unless the disease has terminated in tracheal consumption. It has been a question whether or not the false membrane formed in croup is capable of becoming organised, and united to the surface that has produced it. We have no conclusive evidence of such an occurrence, al- though SoEMMERiuNG, Albers, and Bkicheteau are inclined to believe it possible. The other morbid appearances are chiefly the consequences of the interrupted functions of respiration and circulation through the lungs; such as' con- gestion of this organ and of the brain ; hepatisation of parts of the lung; emphysema of this viscus ; and, in very young children, enlargement of the thymus gland. The lesions observed in the com- plications of the disease, as far as they have not been already noticed, more strictly belong to the particular maladies with which it is occasionally thus associated ; where they are described, and in the article Membrane. 37. ii. Nature of the Dhease. — Different opin- tions have been entertained as to its inflammatory nature in all cases, the exact character of the inflammation, and the extent to which spasm of the upper parts of the air-passages may contribute to its production. The very slight inflammatory signs sometimes found in the part covered by the false membrane ; the absence of these as well as of any fluid or concrete exudation, in other cases ; the circumstances junder which the disease has sometimes made its appearance, and tlie ab- sence of phlogistic symptoms in its course, an albuminous exudation eitlier forming notwith- standing, or not at all; have induced several writers to consider it as not merely an inflamma- tion of the upper part of the air-passage, but a disease of a peculiar nature, more or less con- nected with llie state of the system, although prin- cipally affecting the trachea and freijuently the larynx, and large bronchi also. The opinions of JlooEitY, Hahi.es, llECKEii,and many others, amount to this merely ; and they seem not far from the truth. I liave lemarked, that, although croup assumes the more unequivocally inflamma- tory form n strong and plethoric children, it does not most frequently affect them, unless they be of the sanguine or irritable temperament ; that it presents every shade or modification from this, to the least phlogistic and most manifestly spasmodic form ; that even its most inflammatory state may assume a spasmodic or nervous cha- racter after large depletions, which, while they diminish, as under every other circumstance of disease, the phlogistic diathesis and symptoms, increase the nervous aud spasmodic ; and that, even when the first seizure has been of the inflam- matory form, yet the relapses, or subsequent attacks, which are sometimes repeated several times at irregular intervals, have generally pos- sessed more of the spasmodic character. 38. Another fact, which I have uniformly ob- served, appears important ; namely, that the quantity of fibrine and crassamentum in the blood taken from the patient, and of albumen in the urine, have been great in proportion to the in- flammatory type of the disease, and the disposition to form a false membrane ; whilst in the more spasmodic varieties, in which an albuminous exudation is seldom found, or at least but sparingly, and the urine is more copious and limpid, and less, or not at all albuminous, the blood has presented a smaller or less firm crassa- mentum. These facts evidently show, not only that the state of the blood is different in these forms of the disease, but that the condition of the organic nervous or vital power, upon which the appearances and constitution of the circulating fluid so closely depend, is also dift'yrent ; and, moreover, that the manifestations of both the one and the other will vary in the different modi- fications of croup, conformably with these results. The combined and reciprocative operation of the nervous influence, and the condition of the cir- culating fluid, will give rise according to the state of the frame, and the nature and combin- ation of the exciting causes, to constitutional as well as local phenomena; to a state of febrile action, which will be inflammatory in, generally, the majority of cases, nervous in others, and pre- sent more or less of gastric, or even of adynamic symptoms in some, particularly when the disease occurs in a complicated or epidemic form. The importance of attending, during the treatment of particular cases, and of their different stages, to the characters of the constitutional disturbance — to the attendant fever, will be evident, as indi- cating not only the means to be adopted, but also the nature of the local mischief. Thus, in the cases attended by inflammatory fever, the exudation is abundant and rapidly formed ; in that manifesting the nervous form, it is either scanty, imperfect, or consists of a little glairy fluid, — the spasmodic character predominating, and cerebral symptoms sometimes supervening ; and in that presenting the adynamic and gastric form it is spreading, — being seldom limited to the trachea and larynx, but often extending to the pharynx, fauces, the mouth and even to tlie nostrils on the one hand, and down the (esophagus and bronchi on the other. It is in this last form that the disease presents itself wiien it is epidemic or infectious; and although the adynamic (or the malignant character, according to .1. P. Frank) often manifests itself early, yet the antecedent fe- brile symptoms very evidently evince high action. CROUP — P 39. There is one important point not sufficiently adverted to by authors, viz. the very early period at which the tracheal exudation is often poured out, in the inflaminatory states of the disease ; the symptoms marking the first or premonitory period being those indicating the local developement of the malady. Thus, a healthy child has evinced no disorder for several days, or the disorder has been so slight as to escape observation — it may even be more than usually lively and alert on the day preceding the night on which it is most se- verely attacked ; and yet, if an emetic be that instant exiiibited, a large quantity of thick, glairy, sanguineous, and gelatinous matter will be brought away from the air-passages ; showing that, in many instances, the early advances of the inflam- matory action is slow and insidious ; that the cha- racteristic seizure often does not occur until the exudation has accumulated to a considerable ex- tent in the trachea, or the inflammation has ex- tended to the larynx ; and that it is partly owing to the retention of this matter, — which is evidently thrown out in a fluid form, — that it concretes into a false membrane, each successive discharge some- times forming a distinct layer. AIM. Gendrin, An DEAL, and other pathologists, have remarked, that the inflammatory action which gives rise to the albuminous exudation on the surface of mucous membranes is of a sub-acute, rather than of an acute kind. I believe that this is the case in respect of the inflammation of the trachea and larynx, in croup ; and that the formation of a false membrane is the result not so much of the sthenic or acute character of the local action, as of the abundance of albumen and fibrine in the blood, — a circumstance which partly accounts for the frequency of relapses in some children (§41. o.), and justifies IIarles, Hecker, and others, in considering the disease to consist of a peculiar form of inflammation. Some writers, however, suppose that the very acute symptoms, and rapid termination of many cases, militate against these opinions ; but it should be recollected that, even in the most severe cases, the inflammatory action, when it commences in the trachea, often exists for several days, in the manner already noticed, until it has either extended to the larynx, or produced such a quantity of albuminous exudation as will obstruct respiration, or induce, by its irritation, spasm of the air-passages, — these eftects being the chief causes of the severity and rapid ter- mination of the disease. This will become more evident, when we consider the consequences of interrupted respiration upon the frame — whether the interruption proceed from the mechanical ob- struction occasioned by the exudation and false membrane, or the frequent recurrence or con- tinuance of spasm of the larynx and trachea ; or from inflammatory action, and its consecutive exudation extending down the bronchi ; or from two or all of these combined. These conse- quences are, in fact, the third stage of the disease ; the symptoms of which are the usual phenomena resulting from obstructed respiration, interrupted circulation, and congestion of the lungs ; imperfect action of the air upon the blood, and the circu- lation of this fluid in a nearly venous slate, with congestion of the cavities of the heart, and impeded return of blood from the head. The circulation, moreover, of imperfectly arterialised blood to the nervous systems occasions lethargy, with sinking of the vital powers, and increases the disposition ATHOtOCy OF. 461 to spasmodic action of involuntary parts, and to convulsive movements of voluntary organs ; all which (the former especially) become so promi- nent a character of the malady in its advanced stages, and often terminate existence. Thus it will appear manifest, — and the fact is of great prac- tical importance, — that the severity, rapidity, and danger of croup, are not the immediate conse- quences of the activity or acuteness of the inflam- matory action ; but of the exudation to which it gives rise, and of the conformation and functions of the parts which it affects. 40. Duval, Jurine, Albers, and Schmidt, have considered it worth ascertaining, in how far the disease could be artijicially produced in the lower animals ; and whether or not, when thus produced, inflammation exists to the extent of accounting for the phenomena, or gives rise to a false membrane. They injected into the trachea of fowls, dogs, cats, sheep, wolves, &c., various irritating substances, as the bichloride or peroxide of mercury (Schmidt) dissolved in spirits of tur- pentine, and solutions of iodine, and nitrate of silver ; they moreover made these animals inhale the fumes of sulphuric and hydrochloric acids ; and the results were just what might have been anticipated, viz. that in some cases, inflammation without any exudation was produced ; in others, a fluid, or more or less concrete exudation was found in various quantity ; and in all, the matter in the air-passages was not sufficient entirely to obstruct the access of air to the lungs; thus confirming the opinion justly contended for by Cullen and others, that a great part of the phenomena and conse- quences of the disease is to be attributed to spasm of the larynx and trachea. Schmidt succeeded in producing a false membrane only in youno- ani- mals,— a fact in accordance with the spontaneous occurrence of the disease previously to puberty, and to be referred to the more albuminous state of the blood often observed at this period. It may be of importance to know that croup — identical in its phenomena and organic changes with the disease in the human subject — occurs also in several of the lower animals, especially before they are fully grown. Its occurrence in chickens is well known by the name of " Pip." Dupuy, Rush, Valentii^, YouATT, and others, have observed it in horses and dogs ; Double, in lambs and cats ; and Ghisi and Gohier, in cows. In some of these animals it has even occurred as an epidemic. 41. Pathological Conclusions. — Another point, of greater importance than it may at first seem, is whether or not the matter concreted and moulded on the inflamed mucous surface be exuded by this tissue itself, or secreted by the follicular glands with which it is so abundantly supplied. M. Grimaud has adopted the latter alternative. From particular attention I have paid to this subject, some of the results of which have been stated iu the article Bronchi (§ 11, 12.), I would draw the following inferences relative to it, and to the pathology of croup generally: — (a) That the mucous membrane itself is tiie seat of the inflam- mation of croup ; and tiiat its vessels exude the albuminous or characteristic discharge, which, from its plasticity and the effects of temperature and the continued passage of air over it, becomes concreted into a false membrane ; — (h) That the occasional appearance of blood-vessels in it arises from the presence of red globules in the fluid when first exuded from the inflamed vessels, as may be 462 CROUP— Treatment of its common Forms. ascertained by the exhibition, upon the approach of the symptoms, of a powerful emetic, which will bring away this fluid before it has concreted into a membrane ; these globules generally attracting each other, and appearing like blood-vessels, as the albuminous matter coagulates on the inflamed surface ; — (c) That the membranous substance is detached in the advanced stages of the disease, by the secretion, from the excited mucous follicles, of a more fluid and a less coagulable matter, which is poured out between it and the mucous coat ; and, as this secretion of the mucous cryptae be- comes more and more copious, the albuminous membrane is the more fully separated, and ul- timately excreted if the vital powers of the re- spiratory organ and of the system be sufficient to accomplish it; — (f/) That sub-acute or slight inflammatory action may be inferred as having existed, in connection with an increased propor- tion of fibro-albuminous matter in the blood, whenever we find the croupal productions in the air-passages ; but that tiiese are not the only morbid conditions constituting the disease ; — (e) That, in conjunction with the foregoing, — some- times only with the former of these in a slight degree, — there is always present, chiefly in the de- veloped and advanced stages, much spasmodic ac- tion of the muscles of the larynx, and of the trans- verse fibres of the membranous part of the trachea, which, whilst it tends to loosen the attachment of the false membrane, diminishes, or momentarily shuts, the canal (of the larynx) through which the air presses into the lungs ; — (/) That inflamma- tory action may exist in the trachea, and the exud- ation of albuminous matter may be going on, for a considerable time before they are suspected, — the accession of the spasmodic symptoms being often the first intimation of the disease ; and these, with the effects of the pre-existing inflammation, give rise to the phenomena characterising the sudden seizure; — {g) That the modifications of croup may be referred to tlie varying degree and activity of the inflammatory action ; the quantity, the fluidity, or plasticity of the exuded matter; the severity of spasmodic action ; and to the pre- dominance of either of these over the otheis in particular cases, owing to the habit of body, tem- perament, and treatment of the patient, &c. ; — (/i) That the rnuco-purulent secretion, which often accompanies or follows the detachment and dis- charge of the concrete or membranous matters, is the product of the consecutively excited, and slightly inflamed, state of the mucous follicles, the secretion of which acts so beneficially in de- taching tlie false membrane; — (i) That a fatal issue is not caused merely by the quantity of the croupal productions accumulated in the larynx and trachea; but by tiie spasm, and the necessary results of interrupted respiration, and circulation through the lungs; — (Ic) That the partial de- tachment of fragments of membrane, particularly when they become entangled in the larynx, may excite severe, dangerous, or even fatal spasm of this part, according to its intensity relatively to the vital powers of the j)atient; and that this oc- currence is most to be apprehended in the com- plicated states of the malady, where the iiifl:uii- matory action, with its ciiaraeteristic exudation, spreads from tlie fauces and j)harynx to tlie la- rynx and trachea; tlie larynx being often ciiieily afl^'cted in sucii cases ; and from its irritability and conformation giving rise to a more spasmodic and dangerous form of the disease ;^(0 That the danger attending the complications of croup is to be ascribed not only to this circumstance, but albo to the depression of vital power, and the characteristic state of fever accompanying most of them, particularly in their advanced stages ; — (?n) That irritation from partially detached mem- branous exudations in the pharynx, or in the vicinity of the larynx or epiglottis, may produce croupal symptoms in weak, exhausted, or nervous children, without the larynx or trachea being themselves materially diseased ; and that even the sympathetic irritation of teething may occasion the spasmodic form of croup, without much in- flammatory irritation of the air-passages, par- ticularly when the prima via is disordered, and the membranes about the base of the brain are in an excited i state ; — («) That the predominance in particular cases of some one of the pathological states noticed above (g), as constituting the dis- ease, and giving rise to the various modifications it presents, from the most inflammatory to the most spasmodic, may be manifested in the same case, at different stages of the malady, particularly in its simple forms, and in the relapses which may subsequently take place ; the inflammatory cha- racterpredominating in the early stages, and either the mucous or the spasmodic, or an association of both, in the subsequent periods ; — (o) That the relapses, which so frequently occur after intervals of various duration, and which sometimes amount to seven or eight, or are even still more numerous, may each present different states or forms of the disease from the others ; the first attack being generally the most inflammatory and severe, and the relapses of a slighter and more spasmodic kind ; but in some cases this order is not observed, the second or third, or some subsequent seizure, being more severe than the rest, or even fatal, either from the inflammation and extent of ex- udation, or from the intensity and persistence of the spasmodic symptoms, — most frequently from this latter circumstance. The above in- ferences, however minute or trite they may seem, should not be overlooked, as they furnish the safest and most successful indications of cure, and are the beacons by which we are to be guided in the treatment of the disease. 42. VI. Treatment. — i. The curative Treat- ment OF Croup. I shall first state the method of cure on which I would chiefly rely in the difl'erent modifications of the disease ; and afterwards notice some of the remedies which have been recom- mended by various writers. Several of these are of great benefit in certain circumstanoes of the dis- ease ; but we can seldom depend upon any one of them: it is on a judicious combination and se- <|uenceof means that we should chiefly rely ; and upon the adaptation and co-ordination of these in particular cases. The intciit'wiis nj cure are — 1st, to diminish inflammatory and febrde action, when present; and to prevent, in these cases, the form- ation of a false membrane, or the accumulation of albuminous matters in the air-passages ; ■ — 2d, when the time for attempting this has passed, or when it cannot be attained, to procure the dis- ciiarge of these matters ; — 3d, to subdue spas- modic symptoms as soon as they appear; and 4th, to support tlie ])owers of life in the latter stages, so as to prevent the recurrence of sjiasms, and to enable the system to throw off the matters exuded in the trachea. CROUP — TnEATMENT 43. A. Treatment of the comnwu and infiam- inatory Croup, — a. If the practitioner see the patient in the Jirst stage (§ 6.), particularly if hoarseness, or a rough cough, with other catarrhal symptoms, be present, it will be proper to give an active antimonial emetic, with the view of ful- filling the Jirst of the above intentions. This will often bring away a considerable quantity of a tliick, glairy, and sometimes slightly sanguineous matter from the trachea, and will give immediate, although generally only temporary, relief. If the matter discharged from the air-passages present the above appearances; if the child be pletlioric, the pulse at all excited, and the countenance flushed; we sliould not be deceived by the calm following the full operation of the emetic, but should have recourse to blood-letting. In the majority of instances, cupping between the shoul- ders or on the nape of the neck, or the application of leeches on the sternum, to an extent which tlie age, habit of body, and strength of the patient may warrant, will be preferable to venesection. Under these circumstances, particularly when the nausea occasioned by the emetic has hardly subsided, the abstraction of little more than an ounce, or an ounce and a half, of blood, for every year that the child may have completed, will be borne. In town practice, the local is preferable to general blood-letting ; but the latter will be adopted, with advantage in the country, amongst plethoric and robust children. The advantages of depletion and antiraonials are attributable to their influence in arresting the inflammatory action, and, from the consecutively accelerated absorption of fluids into the circulation, to the relative diminution of the albuminous constituents of the blood. I have in several cases directed, after a moderate depletion, and after the operation of an emetic, a piece of folded flannel to be wrung out of hot water, and freely sprinkled with oil of turpentine, or with either of the Zi«i;nenfs(F 296. 3 11.), and applied around the neck and throat. This application has given instant relief. 44. Immediately after depletion, and an emetic, the best internal medicine undoubtedly is calomel and James's Powder — from three to five grains of the former, and two or three of the latter being given. This powder may be repeated every second, third, or fourth hour, until two or three doses have been taken. After the first dose, the child should be put in a tepid bath, and be allowed as much tepid diluents as the stomacli will bear, in which carbonate of soda may be dissolved, and which may be rendered agreeable with syrup. If the powders, given to the extent now mentioned, have not acted upon the bovvels, castor oil, or some other purgative, assisted by an emetic, should be administered. These means, aided by the turpen- tine epithem applied around the neck, will seldom fail of cutting short the disease. If, iiovvever, it still proceed, the means to be employed in the next stage should be adopted according to the circum- stance of the case. 45. b. The second or developed stage is that in which medical aid is most frequently resorted to ; and at this period, conformably with what has been stated ( § 39.), the disease is actually further advanced than the symptoms indicate. At its commencement, however, the frst intention of cure should be attempted ; but the most decided means will be now requisite to attain its fulfil- ment. These should be put in practice, even although the treatment already recommended OF ITS COMMON FoRMS. 463 may have been employed in the preceding stage. An active antimonial emetic should be instantly exhibited, so as to produce full vomiting ; and immediately upon the conclusion of its operation, blood-letting, general or local, must be resorted to. The abstraction of a greater quantity than that indicated above (§ 43.) will seldom be more beneficial, nor, indeed, will it be borne without producing syncope, which, in children, especially, should be avoided, as favouring the supervention of convulsions or reaction. But it may be requi- site, particularly when the patient has not lost any blood during the preceding stage, to repeat the depletion. On this, or on any luture occasion of repeating it, local blood-letting, in the situations and mode already mentioned (§43.), is now to be preferred. If they have not been prescribed previously, the calomel and J ames's powder should be given every two or three hours, until tliree or tour doses are taken ; and the adjuvants directed to accompany and to follow this medicine in the first stage, should also be employed in this. 46. Having thus carried depletion as far as seems prudent, and fully evacuated the prima via, if a very obvious improvement have not taken place, or if the suffocating seizures recur not- withstanding, dry cupping may be resorted to, and afterwards either a blister should be applied be- tween the shoulders, on the nape of the neck, or on the epigastrium, but never on the throat, or the turpentine epithem ($ 43.) ought to be applied around the neck. If symptoms of febrile excite- ment still attend the seizures, an emetic should be given, so as to excite vomiting again, and be re- peated until it has this effect fully. If the urgent symptoms and fever still continue, vomiting may be excited a third or fourth time at intervals of two or three hours. The tartar emetic is, upon t!ie whole, the best medicine for tiie pui'pose in the early or inflammatory states of the disea.se, and may be given in doses of half a grain, in simple solution, to a child two or three years old, as advised by Dr. Ciieyne, and repeated at about half an hour, or sooner, if vomiting be not induced, il. GuERSENT prefers ipecacuanha, and advises blood-letting to precede the exhibition of emetics. \\'here the inflammatory action is considerable, this method may be adopted; but where we may expect to bring away the exuded matter by means of an emetic, before it has concreted into a mem- brane, it will be as well to exhibit one without delay, and to keep up a constant nausea by the same medicines given in frequent and small doses, liut I have seen the tartar emetic not only tail in producing vomiting, but also prove injurious by causing dangerous vital depression. 47. If the symptoms continue notwithstanding tiie judicious use of the above means, we should infer the formation of a false membrane, unless the exacerbation be altogether spasmodic — the breathing and voice becoming natural, or nearly so, in the intervals. The measures to be employed now should have reference to the separation and discharge of the concrete exudation, and the removal of spasmodic symptoms — to the fulfil- inent of the second and ikird intentions proposed. JJleeding, even if the state of the patient would admit of it, would not promote these intentions ; and the exhibition of calomel or mercurials, excepting wiili the view of pronioting all tlie abdominal secretions and excretions, and thereby to derive from the diseased organ, would not 464 materially assist our views, inasmuch as it is im- possible thereby to affect the system of children so as to prevent the formation of coagulable lymph. In this case, we should assist the oper- ations of nature in detaching the false membrane. It has been stated, that this is accomplished by the effusion, by the excited follicles, of a fluid matter between the concrete substance and the mucous coat ; therefore those medicines which have usually the effect of increasing and render- ino- more fluid the raucous secretion of the air- pa'ssages, should now be prescribed. But care should be taken not to exhibit these or any other expectorants, too early, or until depletion has been carried sufficiently far. They are most service- able about the termination of the second, and the commencement of the third stage. The medicines best calculated to act as expectorants in this dis- ease are, the preparations" of squills,' of ammo- niacnm, of senega, the carbonates, and the sulphu- rets of the alkalies, and camplwr. The oxymel or syrup of squills may be given, either alone, or with some one of the sulphurets, or with senega, and generally to the extent of keeping up a slight nausea, unless the excerbations of cough and suffocation be severe, when full vomiting should be produced by their means. I prefer the emetic effect at this period to be obtained by squills ; as antimony lowers too quickly the vital power, which ought now to be supported, so as to enable the diseased organ to throw oflf the morbid matter formed upon its surface. A mixture, consisting of decoction of senega, with vinum ipecacuanhas and oxymel of squills, may also be adopted with equal advantage. When tlie medicines fail of exciting vomiting, the pliarynx should be irritated by a feather." I have seen very much benefit derived from this simple means ; and have considered it more beneficial than any other, in the third stage, in promoting the discharge of matters from the trachea. Jurine also places great reliance on it. When severe exacerbations, with spasm and threat- ened suffocation, occur, it is always most advan- tageous to produce instant vomhing. The sulphate of'zinc has been advised by RI.Gueksknt, and tlie sulphate of copper by Dr. Hoffmann, for this pur- pose. In this state of the disease, I have applied the warm turpentine epitheni mentioned above (§43.), around the neck, with almost instant benefit. 48. During this and the preceding stages, the inhalation of watery and medicated vapours may be resorted to. At the commencement of the disease, vapours of an emollient kind are most beneficial ; but when we wish to promote ex- pectoration, camphor may be added to the sub- stance used in this way. Home, CnAWFOisD, Peahson, IlosEN, PiNEL, and Goelis, have ap- proved of this practice. When spasmodic symp- toms manifest themselves, inhalation, assisted by the tepid or warm bath, is often of use; but anti- spasmodics siiould also be prescribed with the other medicines, or in enemata. I have never seen any permanent advantage derived from nar- cotics given by the mouth, except from opiuin or syrup of poppies, combined witii antispasmodics; probably owing to their lowering the vital ener- gies, wiiich arc always much depressed when nervous symptoms appear. Great care should be always taken in exhibiting opiates in clysters to children : in very young children tiie practice is attended by much risk. Opiates are given to (greatest advantage with ipecacuanha, as iu CROUP — Treatment of its common Foums. Dover's powder, or with camphor, or calomel, or with both. I have likewise found camphor, with James's powder, and hyoscyamus, of much benefit in some cases in which I have prescribed it. The hydrosulphuret of ammonia may likewise be tried in both this and the next stage of the disease. 49. In many cases, the judicious use of blood- letting, calomel, antimony, &c. will cut sliort the disease, even although the patient may not have been treated until this period has been far ad- vanced ; and in others, the active use of these means may give rise to very alarming depression of the vital energies, eVen when they may have suc- ceeded in removing the cause of obstruction and ir- ritation in the air- passages. In these, stimulants, an tispasmodics.and restoratives must be immediately resorted to, but with great caution, lest the inflam- matory action may be reproduced by their means.* * The following case will illustrate the above observ. ation, and may prove instructive to the less experienced reader. I have extracted it verbatim from my note-book, with the remarlcs suggested at the time appended to it ; — William Hodson, aged five years and a half, was seized, on the 17th of Nov. 1S21, with hoarseness, fever, and a ringing, dry cough. The mother opened its bowels with salts, and gave it some antimonial wine. The following day, in the evening (ISth), I saw it. There was much fever, with flushed countenance, and a constant, hard, and ringing cough, witii a sibilous noise on respiration. Pulse frequent and hard ; skin harsh and dry ; great restlessness, tossing, dyspnoea, with hoarseness, and the characteristic breathing of croup. 1 directed blood-letting from a vein in the arm ; and the blood was allowed to flow in a full stream till approaching syncope was indi- cated, seven ounces being abstracted ; and the following powders were directed to be taken every ten minutes, till full vomiting was induced ; and subsequently every three hours: — No. 102. R Hydrarg. Submur. gr. xxx. ; Antimon. Pot.-Tart. gr. iij. ; Pulv. Ipecacuanhae gr. vj. Misce bene, et divide in Pulv. viij. Early in tlie morning of the 19th I again saw the child. The powders had been given, as above, until full vomiting had been produced ; and one powder had been taken subse. qucntly. The sense of suffocation had disappeared after the vomiting. The matters ejected contained much thick, ropy-mucus, with membranous shreds of firm coagulated lymph floating in it. The cough and croupy symptoms had disappeared ; the voice was clear, and the respiration easy ; but now the cnild ccmiplained of distressing sick- ness, with frequent vomituig and purging : the stools \Vere first bilious, offensive, copious, and liEculent ; but they had now become watery. The pulse was extremely frequent, so as scarcely to be counted ; and so small and thready as hardly to be felt at the wrist. The counte- nance was pale and sunk ; the skin cool and moist ; and all the symptoms of sinking of the powers of life, very manifest. The powders were discontinued, and the fol- lowing mixture directed: — No. 103. R Aq. Cinnam. 3 iijss. ; Spirit. Ammon. Aroni. 3 jss. ; Tinc't. Opii lUxv. ; Syrupi SciUae 3 iij- M. Two teaspoonsful of this were to.be taken every ten or fifteen minutes, until a decided effect from it was evident. After four or five doses, the stools and sickness were re- strained, and the child fell into an easy and sound sleep, A blister was now applied to the sternum, which was to be 'removed at the end of four liours, and poulticed with a bread-and- water poultice. Thesemicupium to be employed afterwards, and at bed-time. Three grains of calomel, witli one of James'g powder, to be taken at night, and tlie mist, camphora;, with liq. ammon. .icct., vinum ipecacuanha;, and syrupus papaveris, every three hours. Linseed tea or barley water, witli sugar-candy or li(|Uorice for common drink. 20th All the symptoms of croup had disappeared ; but tliere was still some cough and fever, with occasional pa- roxysms of difficult breatliing. The bowels had been open this morning ; pulse 120, and small. Antimonial wine was added to the mixture ; and an injection directed, with as- safu'tida, sjiiritus tcrcbinthiiuB, oleum ricini, and camphor, III the evening. — He had had no return of the paroxysms since the injection, which was retained above an hour, and had procured two evacuaticms. Pulse 116; cough less frequent ; skin more natural. The blistered surface had risen in some parts, and was inflamed in all. Krom this time he continued to recover : diaphoretics, demulcents, aperients, and the semicupium, being em- ployed uiilil convalescence was complete. yi'(7»(o7..s- — It is by no means unusual to find a recurrence of the iiillairiiiiatory and local symptoms after they have bceu apparently most completely subdued by means similar CROUP — '■ Treatment of the Spasmodic Form. 46> extremities. I have, however, seen more advan 50, c. The tveatment of the tliird stage, either when the patient has not been earlier seen, or when previous measures have failed, should be directed with the view of fulfilling the seciuul and third indications of cure, and at the same time with due reference to the J'ouyth — the preservation of the exhausted nervous and vital powers. The chances of recovery are now very few, but these few should not be neglected. J\Iuny of the reme- dies, already mentioned, especially eipectorants, should also be exhibited in this stage ; and these ought occasionally — particularly when the symp- toms become very urgent — to be given so as to exert a speedy emetic action ; and be combined with antispasmodics — with either camphor, am- monia, ajtiier, musk, valerian, assafoetida, the oxide of zinc or trisnitrate of bismuth, the sulphurets of the alkalies, &c.; and the same medicines, or the infusion of valerian, may also be prescribed in eneniata, especially when spasmodic or nervous symptoms are predominant. When emetics are exhibited in this stage, those substances which are required in smaller doses in the remissions, in order to act as nauseants or expectorants, are amongst the most eligible — particularly squills, senega, the sulphate of zinc. The inhalation of the vapour of ammonia, camphor, or rether, in that of warm water ; or of the fumes of warm vinegar, either alone, or with camphor ; is sometimes productive of benefit in this period. Some advantage may also be derived from sternutatories blown into tiie nostrils, as advised by Lentix, and Thilenius. I have seen, in two or three instances, tlie sneezing occasioned by them favour remarkably the discharge of the false membranes from the trachea ; common Scotch snufi" having been used for this purpose. 51. The tepid bath may be resorted to both in this and the preceding stage, once- or twice daily, or according to circumstahces ; and either the sul- phuretof potassium, or the carbonates of potash or soda may be put in the water ; and, if a tetidency to collapse becomes apparent, the bath sTiould be ■warm, and some mustard may also be addedt JBUsters between the shoulders, or on the sternum, may likewise be tried ; but they always require great discrimination and care, in order to avoid un- pleasant consequences from them, 'i'hey should not, in this stage, remain on longer than from four to eight hours. Home and Thilenius advise them to be applied to the* neck; Lentin and GoELis, to the neck and sternum ; and Royer- CoLLARD, between the shoulders-or on the arms ; Maercker states, that he has derived, but little benefit from them. Olbers and Rover-Collard speakfavourably of sinapisms placed on the lower to those employed in the foregoing case; and even after the powers of life, and all local inflammation and febrile ac- tion, had been equally depressed. This recurrence of the acute symptoms seems owing to cither an over active use of stimulants, or an injudicious choice of them in the collapse occasionally following the decided use of blood- letting and antimony. Sometimes it arises from exposure to cold, or a current of cold dry air ; and then, generally, a distinct chilliness or rigor is previously felt. Occasionally 1 have traced it to too early recourse"to food, or articles of a too stimulating and indigestible description. In- attention to the state of the bowels will also dispose to it; and even a blister applied too near upon the scat of disi ease has evidently produced such an effect, especially in thin irritable children. In no case would I permit a blister to be placed upon the throat, so firmly am I per- suaded that mischief is occasioned from it in this situation. Vol. I. tage accrue from rubefacient liniments(F. 299. 304.) orepithems, applied on the epigastrium and chest, or between the shoulders. During this, as well as the preceding stage, a cathartic action should be exerted upon the bowels, unless the medicines pre- viously exhibited occasion diarriioea, or dysenteric syirrjjtoms, RIedicines of this description are be- neficial, as active derivatives from the seat of dis- ease, and as evacuants of morbid secretions. Calo- mel, with jalap, may ba given, either alone, with musk, or some other antispasmodic medicine; but, in every instance, the occasional exhibition of an enema should not be neglected. Olbers, Albers, anil J urine, strenuously advise large doses of musk to beexhibited ; and Kendrick and Royer- CoLi.ARD, assafwtida to be administered in clysters. The ajfusion of cold water on tiie head has been sometimes resorted to by IIarders, Schmidt, and myself, when the preceding means have failed, particularly if congestion or other'cerebral symptoms have supervened, and the exacerbations have assumed chiefly a spasmodic form. 52. B. Treatment of the humid and spasmodic forms of croup. — a. In the humid or bronchial form of the disease, the intentions of cure are, — . 1st, to subdue inflammatory action ; 2d, to remove the matters exuded from the air-passages; 3d, to calm spasmodic action; and, 4th, to support vital power. These can be attained only by bleed- ing, general or local, as already advised, but never from the throat itself; in the early stages by antimonial emetics, and subsequently by those con- sisting of ipecacuanha or sulphate of zinc ; by ca- lomel, with James's powder, as prescribed above j and afterwards with other purgatives, as scam- mony or jalap; by cathartic enemata ; by e.\ler- nal dericuliies ; and, lastly, by antispasmodics and diffusible stimulants. Of tliese, individually, little need be added to what has been already advanced. ]More advantage seems to be derived from purga- tives, in .this, than in' any other form of the dis- ease. I have sometimes seen them bring away a thick, gelatinous, glairy secretion, similar to that discharged- from the air-passagesin the advanced stages. Their operation should be'promoted by the administration of purgatives in antispasmodic clys- ters, as extract of colocynth with assafcetida, va- lerian, or camphor ; and if spasmodic symptoms become urgent, the sulphurets or carbon- ates of the alkalies, and either of the various antispasmodics already mentioned, may also be taken by the mouth, particularly camphor, with James's powder, or Kermes mineral, or ipe- cacuanha, with spirits of nitre, aether, or other dia- phoretics. The medicated te/«'rf or moderately uwrw batlt, blisters, the turpentine epilhem applied around the neck and throat, rubefacient liniments, the inhalation of simple or medicated vapours, may also be resorted to in the manner detailed above. In the last stage, when the powers of life indicate exhaustion, ammoniacum, senega, oxymel of squills ; and camphor, assafcetida, musk, ammonia, the ajthers, &c. in full doses ; and rubefacient and stimulating frictions, liniments and baths, with the rest of the treatment already recommended at this period ; are the chief means in which we can confide. 53. /). In the spasmodic form of the malady the indications of cure are very nearly the same as now stated j but the treatment will neces- Hh 466 CROUP — Treatment of its Complicated I'orms. saiily vary with the extent to which inflammatory irritation may be supposed to exist either in or about the hirynx, particularly soon after the ap- pearance of the disease ; or about the medulla oblongata, in its more advanced course. In that state of constitution in which this form is most frequent, bleeding is seldom required beyond that procured by a few leeches applied to the nape of the neck, when we infer the presence of inflam- matory irritation in tlie above situations. In this modification, whether occurring primarily, or in relapses, unlispasinodics, given both by the mouth and by clysters, are indispensable ; but emetics, and afterwards cathartics, medicated tepid or warm baths, and inhalations, the turpentine epithem ap- plied around the neck, blisters, or rubej'ucient frictions and liniments along the spine and over the epigastrium, and the cold affusion on the head, also constitute important parts of the treatment. The antispasmodics most to be confided in are, the sulphurets and carbonates of the alkalies, va- lerian, assafoetida, ammonia, camphor, musk, the preparations of asther, the oxide of zinc and trisni- trate of bismutli, and the liquor ammonia; acetatis, with excess of ammonia. Mr. Ki.mbell states, that he has derived most advantage from the in- ternal use of arsenic, or sulphuret of potassium, aided by regular attention to the bowels, the shower bath, and by blisters or anodyne frictions on the spine. Of arsenic I have had no experience in this affection ; but I have given the preparations of bark, and used the other remedies he has men- tioned, with advantage. If the above means do not soon remove the disease, irritation about the base of the brain or medulla oblongata should be suspected, and leeches ought to be applied on the neck ; and calomel, with aperients, or with musk or camphor, exhibited once or twice daily, injections being also employed : cerebral symptoms should be always enquired after, and energetically treated when delected. 54. C. Treatment of complicated and con- secutive Croup. — The treatment of the various complications of the disease must be directed according to the general principles now sketched; and with strict reference to the nature of the associated malady, to the period of the primary disease at which it appeared, to the characters of the attendant constitutional disturbance, and of the prevailing epidemic, and to the well-ascer- tained fact that local inflammations supervening in the course of continued or eruptive fevers, although they require depletions, do not admit of them to the same extent as those which occur primarily. 55. a. The association of croup with in- Jlammation of the throat, and exudation of lymph in this situation, whether originating in the pharynx, wiiicli is rarely the case, or extending thither and to the air-passages from tiie fauces and tonsils, is one of the most frequent forms in which the disease presents itself, particularly when epidemic or infectious, and is, therefore, deserving of particular notice. But the treat- ment must, in great measure, depend upon the degree in which eitiicr stiienic or astlienic in- flammatory action and fever may be considered to exist. Although great increase of vascular action is present al the onset, in the majority of such cases; yet it is often attended by deficient vital power, and exhaustion soon takes place. Even ill the most sthenic cases, the treatment j which would have been of service at first is soon no longer admissible ; whilst in other cases, and in some epidemics, very marked adynamia is manifested from the commencement. Much depends on the precision with which the exact nature of the case and the state of vital power are ascertained, and on having early recourse to judicious measures. As to the predominance of either of the states of morbid action alluded to, the frequency and tone of the pulse, the colour of the exudation in the throat, and of the parts sur- rounding it, and the continuance of the disease, are the chief guides. If the inflammation and exudation commence in the tonsils and spread downwards, if the exudation be of a light colour, and the inflamed parts of a lively hue, the pulse being strong, full, and not very quick, depletions, general or local, the use of emetics and nauseants, and the rest of the antiphlogistic treatment, are required ; but the further the disease departs from these characters, the darker and dirtier the exudations appear, the more livid and deeper the colour of the inflamed parts, the quicker, softer, and weaker, the pulse, the more should anti- phlogistic measures be relinquished, unless in some cases to a moderate extent, and at the very commencement of the complaint ; and the more ought we to have recourse to camphor, ammonia, the decoction of senega, ammoniacum, &c. 56. h. The nearer the complicated disease, in its local and constitutional manifestations, approaches to the malignant form, the more extreme is the danger, and the greater necessity is there for the exhibition of tonics and stimulants. In such cases, the decoction of senega, the infusion of serpentaria, or mixture of ammoniacum, may be prescribed, with camphor, and any of the compound spirits of ammonia: or the decoction of bark, with liq. amnion, acetatis and tincture of capsicum; or the sulphate of quinine, with infusion of roses, and the aethers ; or either the chlorate of potassa, or the hydrochlorate or sesqui-carbonate of ammonia, with camphor, musk, myrrh, assafoetida, &c. in suitable vehicles. When the paroxysms of sufTocation be- come urgent, senega, preparations of squills, or F. 402., may be given in doses sufficient to produce vomiting, and repeated according to circumstances ; and active stimulant and antispasmodic clysters be thrown up. The vapour of camphor and warm vinegar may also be employed, and various stimu- lating and arotriatic fumigations resorted to. The mouth and throat should be frequently gargled, or washed, by means of a sponge fixed to the end of a piece of whalebone, with a solution of the chloru- rets, or of the bi-borate of soda in camphor mix- ture; or with a weak solution of nitrate of silver, — • a scruple to an ounce of distilled water, — as first advised by Mr. Mackenzie ; or with Goulard water, as suggested by Dr. Haimimon ; or with the chloric acid or chlorine in decoction of bark, or other stimulating detergents ; and sinapisms or embrocations with Cayenne pepper, or rubefacient liniments (F. 3U0. et cet.), may be applied on the nape of the neck, oron the lower part of the chest, and on tiie epigastrium. In tlie conqilications of the disease with angina maligna, observed by LoEi-ir.EK and Hretonneau, powdered alum was directed by them to be blown into the throat ; and various other astringent and antiseptic powders may be employed in the samemanner. When the cha- racteristic eruption of scarlatina accompanies the affection of the throat and air-passages, the treat- CROUP — Remarks on various Remedies employed in. 467 tnent must be directed according to the same principles. In all cases of angina, attended with membranous exudation, whether the attendant constitutional disturbance present sthenic or asthenic characters, the local treatment advised by Mr. JMackenzie should be adopted upon the appearance of the exudation on the tonsils or fauces, and a large blister should be applied early, as being the most efficacious means of preventing the extension of this form of inflammation to the pharynx, air-passages, or oesophagus. 57. c. The tieatment of the complications ivitli aphthce, or tviih any of the eruptive fevers, will depend, as much as the foregoing, upon the state of vital power characterising the constitutional afTection. The appearance of croupal symptoms in the course of small-pox — particularly confluent small-pox — will require nearly the same medicines as have now been recommended {§ 56.) ; and the washes advised to be applied to the mouth and throat will be equally serviceable in the aphthous, as in the variolous complication. When croup is consequent upon either measles, or hooping cough, vascular depletion is more frequently required than in almost any other complication, excepting that with inflammation of the throat of a sthenic kind, whether attended by albuminous exudation or not. 58. -D. The affections consequent upon croup — or the states of disease which itexcites, or into which it passes — acquire not only appropriate remedies, but also the application of them with strict reference to the primary malady, and the means by which it was combated. When it runs on to bronchitis, the latter affection commonly assumes the asthenic form, generally terminates fatally, and requires tlie treatment described in the art. Bronchitis (§70. et seq.}. Its passageinto pneumonia'is attend- ed with similar results ; and depletions, unless they have been previously neglected, are not well borne 59. Remarks on various Rejiedies advised, AND ON THE Opinions of Authors respecting THEM. — a. Nauseants and emetics. In the first stage of the disease, and in the commencement of the second, I have sometimes found that tartar emetic, given so as to produce and prolong a state of nausea, has so completely relieved the croupal symptoms as to prevent altogether ihe necessity of having recourse to blood-letting : and that in other and more severe cases, the same medicine, exhibited so as to produce vomiting, and to continue the nauseating effect for some time afterwards, and thereby to prevent reaction supervening upon the emetic operation, has been followed by a similar result. Emetics have been much recommended after blood-letting, and the inhalation of vapour, and vvhen the exudation is presumed to begin to loosen, by Home, Lentin, Darwin, Maercker, PORIAL, S.IIITH, HeCKEU, ViEUSSEUX, RuMSEV, &c. When the patient has not been visited suf- ficiently early, this plan is certainly judicious. But when he is seen in the first stage, it will be better to attempt to prevent the formation of the false membrane, by exhibiting nauseants or emetics in- stantly, as now advised, and, unless the inflammatory symptoms are very severe, before having recourse to blood-letting. This early exhibition of emetics is sanctioned by CRAvvfORD,CiiEYNE,PiNEi,,nosACK, Thompson, Hufeland, Albers, Schwilqle, &c. Dr. Gaisler prescribes, on the invasion of the disease, tartarised antimony and oxymel of col- chicum. Whilst vascular excitement continues, either this combination, or the antimony only, in repeated doses, as suggested by Chevne and MicHAELis, is the best emetic; but when we wish to detach the membranous exudation, the preparations of squills, alone, or with ipecacuanha, are preferable. In the more spasmodic form of the disease, ipecacuanha, as Goelis remarks, is as suitable an emetic as can be adopted : but when sulphate of zinc, given with stimulants and anti- spasmodics, or F. 402., or thesulphate of copper (En- cj/c/og.t.xxii.E. p. 10.), are to be preferred. Goelis recommends emetics in the first stage of the least inflammatory forms, and generally in the third When diarrh(xa or dysenteric symptoms are pro- j it is found necessary to exhibit such a medicine in duced, in the latter stages, by the means used to | the last stage of the disease, or when it is associated remove the disease, we shall generally find the with angina maligna, or attended by symptoms preparations of opium, and the warm bath, as of depressed vital power, senega, squills, or the hereafter to be noticed, of much benefit. A con- ' ' " ' ■ . ; . - . siderable number of cases, particularly those complicated with sore throat, terminate in sinking ov exhaustion of vital power, and not by suffocation. This circumstance should be kept in view in the treatment of the last stage ; and its earliest in- dications be met with suitable stimulants and tonics (§ 56.). In cases presenting imminent suffocation, the question of tracheotomy should be entertained ; but at the same time, with the re- collection, that either exhausted vital power, the extension of disease to the bronchi, and the ac- cumulation of viscid or concrete exudations in them, or inflammatory action, or emphysema of the lungs themselves, may tend, individually or in combination, to preventthesuccessof the operation, independently of the immediate contingencies to which it is liable. (See § 74.) * * I may here adduce a summary of the practice adopted liy the most experienced physician in France in this dis- ease— the senior physician to the Hospital for Children in Paris. It will be seen how closely it agrees with mv own, in a similar institution in London : — W. Jadelot considers croup as a kind of angina of the air-passage ; presenting more violent symptoms, and having true paroxysms, separated by well-marked inter- missions of a special character. He admits different degrees of the disease, without changing its nature. ISleeding by leeches, and emetics, are the agents he most frequently employs in its treatment. Emetics alone have often sufficed to stop the disease, especially in weak, pale, or bloated subjects ; but, in opposite cases, he insists on the application of leeches, and allows the blood to flow until the child becomes pale, and the pulse loses its strength. After the bleeding, he causes vomiting, several times in succession, at intervals of two or three hours ; and the practice is attended by the greatest success, relief being very apparent after each vomit. AVhen the croup has arrived at the second period, with- out having been opposed, and the presence of a false membrane is suspected, M. J. directs leeches to be ap- plied ; but, the moment they fall off, he hastens to produce vomiting : and it is in this case that he employs, by spoonsful, every ten minutes or quarter of an hour, the mixture called anticroupal*, un'il full vomiting is pro- duced. He insists, also, upon the use of errhines, and of derivatives applied to the skin and intestinal canal. When the disease is very rapid, it has been a question whether or not we should commence by bleeding, or bv an emetic. W. J.'s opinion is, that we should first bleed", if the child be robust, and if it present signs of congestion towards the superior parts ; on the contrary, he would commence by vomiting, when the subject is p'ale and ex- hausted, and there is little heat or fever. ( Ratier's Medical Guide, 4'C.) * B Inlusi Polygalae Senegae 3iv. ; Svrupi Ipecacuan- ha- 5j. ; Oxymel. Scillae 3iij.; Antimon. Totassio-Tart. gr. jss. Misce. Hh 2 468 CROUP — Remarks on various Remedies employed in. stage ; but he prohibits them in the second or in- flammatory stage, and when suftbcation is threat- ened towards the close of the disease. When, however, potassio-tartrate of antimony is employed, and nausea is kept up in the intervals between the emetic operation, as I have recommended above, bleeding being also employed, tlie reaction dreaded by this experienced writer will not come on. His objections to an emetic in the paroxysms of suffo- cation occurring towards the close of tlie malady may be well founded, were antimony or even ipe- cacuanha to be then prescribed ; but, when zinc, squills, and senega, are conjoined with stimulants and antispasmodics, and their operation accele- rated by irritating the pharynx, I have seen the air-passages thereby freed from the substances obstructing them, and t!)e patient saved. 60. B. Bleeding, general or local, or both, although indispensably requisite in the great ma- jority of cases, is not always of service. Rujisey and Muggins remarked its injurious effects in the complicated cases they treated ; and the more nearly the disease approaches to the spasmodic, and the febrile symptoms to the adynamic cha- racter, particularly in the complications, the more likely is it to be of little benefit, or even injurious, unless the state of action and habit of body evi- dently require it. In the more inflammatory states, it should be promptly and fully performed ; the use of nauseating medicines generally pre- venting the necessity of having recourse to very large or injurious depletions. Gmsi, Home, Crawford, Rosen, and others, have preferred general blooddetting at the commencement ; and Bavlev, Miudleton, Balfour, and numerous writers, have recommended the jugular vein to be chosen. Trebeh, HiRsruriELD, Werner, GoEi.is, and IMalfatti, very experienced physi- cians in Vienna, employ local depletions, except- ing in the most inflammatory cases ; and I agree with them, diflering only in preferring cupping to leeches. As to the period at which it should ba resorted to, I believe, with Goelis, that little will be gained by resorting to it before inflam- matory action is manifested, or after excitement has subsided. A suppressed and apparently weak pulse, early in the disease, is often rendered full and hard by venaisection, and a repetition of the operation required, — a circumstance evincing the importance of interpreting aright the state of the circulation. Of forty-seven cases treated by GoELLs, in 1808, seven were blooded from a vein ; thirty-four by leeches only; and six were not blooded at all. The average quantity of blood that I have found requisite to take, altogether, as nearly ns I can calculate, is about five ounces in children of three years, seven or eight in those of five or six, and about ten ounces in those from ten to twelve. This result relates chiefly to those not seen until the second stage of the more inflammatory or common forms of croup. I have met with cases in which blood-letting iiad been chiefly confided in, and been carried to the utmost extent ; but it certainly had seldom or never cured the disease, when thus employed, and even some- times had been evidently injurious. The cele- brated VVashinc;ton was said to have died of croup. He lost, at the age of sixty-eight, about ninety ounces of blood in twelve hours. An attentive perusal of the cases published by Dr. S. Jackson (/Imer, Juurit. of Med, Sciences, vol, iv. p. 361.) will show the inefficiency and injurious effects of excessive depletions. 61. y. Calomel and inercurial inunction have been most strenuously recommended, the former especially, since it was first prescribed by Rush, and in larger doses by Stearnes, Marcus, AuTENREiTH, Anderson, J. P. Frank, Blegbo- RouGH, Neumann, Michaelis, and others, who gave it every three or four hours. Hamilton di- rects it, in full doses, every hour or two hours at first, and subsequently at longer intervals; Hecker advises it in small doses ; and Wigand states that it is of no use. Chevne prescribes it with James's powder ; Harles and others, with the officinal pre- parations of antimony; ScnyEFFER, with emetics and musk ; Schluter, with oxide of zinc and other antispasmodics ; MicHAiii.is and Neumann, with expectorants; Archer, JNIarcus, and Hufeland, with decoction of senega, and mercurial inunction about the neck : and Aucustin, with opium. In the stages attended by excitement, it is best con- joined with James's powder, or potassio-tartrate of antimonj', as prescribed above ; andsometimes with opium, or Dover's powder, and subsequently, if it be given at all, with purgatives ; expectorants, antispasmodics, &c. being exhibited in the in- tervals. GoELis conceives that it is useful in diminishing the tenacity of the croupal exudation, and in retarding its formation. He moreover supposes, that tlie daily exhibition of a small dose of this medicine subdues the diathesis, or constitutional disposition to contract the disease ; and when croup has been prevalent, and appeared in one of a family, he has given about a grain at bed-time daily to each of the other cliildren. 62. S. Blisters and counter-irritants have been already mentioned ; but there are certain points, particularly as respects the period and manner in which they ought to be employed, that require to be noticed. There are very few writers who have not recommended blisters in croup, but quite as few have done so with the wished for precision. On this subject, Goelis is more practically niinute than any other writer ; and in many re- spects his experience coincides with my own. I believe that most advantage will be derived from as early an application of a large blister, as is consistent with the previous employment of blood- letting. Directly after the first depletion, there- fore, one should be applied in either of the situations advised (§ 46.); a piece of fine tissue paper being placed between it and the skin. It ought to be removed upon the appearance of redness of the cuticle, and a warm bread and water poultice placed over the part, and fre- quently renewed. If blisters be used in the latter stages, they should be watched with great care, and be allov.'cd to remain for a few hours only, and not a minute after slight redness is produced. 1 believe that the dangerous effects sometimes occasioned by them are owing to the want of these precatitions, and to having recourse to them at a lime when the vitality of superficial ))arts is soon exhausted, owing to vital depression and to deficiency of blood, consei. Semicnpium and pediluvium are useful modes of derivation, in the first and second stages especially. But salt, mustard, and, in some cases, a little of either of the fixed alkalies, or of the sul- phurets, should be added to the water, and its temperature gradually increased as immersion is prolonged. Great care is requisite in removing the p.'^tient from the bath, to prevent any chill. In many cases, it will be preferable to wring as dry as po-sible large pieces of flannel out of warm water prepared as above, and to wrap them round the lower limbs of the patient, changing them fre- quently, or prolonging the use of them, according to circumstances, and preserving the bed-clothes from moisture. 66. &. Tepid ajjd warm bathing are of service — the former in the early stages, the latter in the ad- vanced periods, of the disease. Goelis advises the tepid bath of about 23° or 24° of« Reaum. ; and to be rendered antispasmodic by using a de- coction of chamomile flowers and poppy-heads ; 460 or irritant, by adding some caustic alkali ; or both antispasmodic aad derivative, by a combination of these substances, according to the circumstances of the case. I have, in a few instances, used these baths, upon the recommendation of this writer, and certainly with marked advantage, but I have in- creased their temperature in the latter stages of the disease, rendering them, at the same time, more ir- ritating by the addition of an alkali. In the early periods, however, the emollient and antispasmodic form of bath seems preferable, particularly when the patient breathes the vapour rising from it. The dnration of immersion should seldom be shorter than twenty minutes, unless circumstances should prevent it ; and I am convinced that it may be prolonged to two hours with advantage, in some instances. In a case despaired of, I caused, upon the recommendation of Goei.is, the child to be put in a bath consisting of a decoction of cham- omile flowers and poppies, to which some caustic alkali was added. It was kept there for twenty- five, and on a second occasion forty, minutes. It ultimately recovered. Care must be taken that the temperature of the bath does not fall during its continuance. As soon as the patient is lemoved, and the skin dried, he should be placed in warm flannel, or in a blanket ; and perspiration encour- aged by diaphoretics suited to the nature of the case and stage of the disease ; in the early stage by anti- mony or ipecacuanha, so as to excite slight nausea, or occasionally vomiting, if requisite; in the latter periods, with liquor ammoniae acetatis, given insuffi- cient quantity to produce the same effects, or,if sink- ing be apprehended, with camphor, ammonia, &c. 67. (. Purgatives have been given with different intentions ; — either as mere evacuants of retained secretions and excretions ; or as active derivatives from the seat of disease. Home, DESEssAnTZ,and MicnAELis, seem to have resorted to them with the former intention; Hamilton, Pinel, and AuTENREiTH, with the latter view ; Crawford, Thompson, and others, prescribing also enemata. JMy own experience is decidedly in favour of this class of medicines ; and of employing calomel, jalap, scammony, &c., and extract of colocynth, with assafffitida, &c. in enemata (§ 51, 52.). 68. Sudorifics are of use only in the early pe- riods of croup. James's powder, and the other preparations of antimony, subsequently ipecacu- anha, and liquor ammonia; acetatis, or the one combined with the other, and given to the extent of exciting nausea, in conjunction with emollients (§ 63.), are important auxdiaries. Goelis re- marks, that Dover's powder is seldom productive of any benefit ; and tiiat sudorifics are never of service in the last stages. Gentle f//'ap/!(i/«(s, early in the disease, is undoubtedly beneficial, when the patient drinks freely of emollients ; but he with justice adds, that very copious sweats only in- crease the disposition to form false membranes of a firm and adherent kind, owing to the evacuation of too large a proportion of the watery parts of the blood. In these opinions, Trerer, Hirschfield, and most of the Vienna physicians, agree. 69. K. Expectorants. — Under this head may be ranked an important part of the remedies pre- scribed in croup. The inhalation of vapours has already been noticed. The experienced Goelis places much confidence in them during the first and third stages ; in the latter of which they often increase the cough, but they favour the discharge H h 3 470 CROUP — Eemauks on various Remedies employed ik. of false membranes, by increasing the mucous secretion by aid of which they are thrown off. I have mentioned (§ 47.) the expectorants in which my experience has led me to confide. There are very few which have been more generally recom- mended than senega. Archer, Barker, Valen- tin, ROYER-COLLARD, LeNTIN, MaERCKER, CaR- EON, &c. recommend it after bleeding. Dr. Archer, who attributes the greatest virtues to this medicine, advises it to be given at the same time .as calomel, in frequent doses, until it excites vo- miting or purging. Goelis and Treber remark, that, although a good remedy in the third stage, it is by no means possessed of those specific virtues attributed to it by Dr. Archer ; and in this 1 agree with them. It is a useful medicine in the complications of the disease with malignant sore- throat or scarlatina. Squills are chiefly trusted to by Huf ELAND, RuMSEY, and Maercker, in the latter periods. They should not be exhibited in the more inflammatory states of the malady, until after depletions have been carried sufficiently far, and we wish to procure the expulsion of the con- crete exudations formed in the air-passages. They oucrht to be exhibited in small doses in the re- missions, and pushed to the extent of producing vomiting when paroxysms of suftbcation occur. After the membranous substances are removed, squills should be altogether laid aside. The sul- phnret of potassium has been recommended by Professors Serf, Chaussier, Mercier, and Hecker, in doses of about four grains, given every three or four hours. It is sometimes of much service after depletions. It may be combined with camphor, or small doses of ipecacuanha. 70. X. Antispasmodics have been very generally prescribed, and particularly by Michaelis, Pinel, ScHwiLGUE, Vieusseux, &c., after the decided use of antiphlogistic remedies. Home, Cheyne, and Goelis, consider that these medicines are of little use in common and inflammatory croup. I am, however, convinced, from extensive experi- ence, that, when the inflammatory symptoms are altogether, or even nearly, removed by antiphlo- gistic medicines, when the disease passes into a spasmodic state, or presents from the conmience- ment a predominance of such symptoms, and when increased irritability becomes manifest, a judicious exhibition of antispasmodic medicines is often at- tended with benefit. Mush, either alone or with other medicines, with calomel (MiciiAiiLis and Wioand), with squills, sulphuret of potassium, or other expectorants, and with camphor or ammonia, in the last stage of the malady * ; valerian and its * The chief danger in croup often proceeds from the spasm with which the respiratory passage is affected In the progress of the disease. The ohstruction of the tube by tlie false membrane and effused matter seldom of itself Cduses suffocation ; but rattier this lesion, combined with spasm of the muscles of the larynx and membranous por- tion of the trachea ; and, in many cases, exhaustion is superadded, or even constitutes the most important change. Depletions alone will not overcome this dis- position to spasmodic action, which is generally <)l)served to supervene at intervals ; the periods elapsing between the paroxysms varying according to the strengtli and constitution of t\n: child and the severity of the disease. Uiit in many cases the spasmodic actiim is more frequent and more dangerous, and the more likely to become as- sociated witli convnlsions, the weaker the constitution and powers of life, and the more those powers have been reduced by copious depletions. After moderate depletion, therefore, and in many cases even previously to any, such medicines as possess an antispasmodic power, by first acting as nauseants, are of great benefit. M. Kimbeli, seems to have partly adopted this view of the disease and of it» treatment ; but 1 am confident he has carried it preparations, assafatida, or any of the other me- dicines of this class mentioned above, may be em- ployed, either alone, or with expectorants and opiates, particularly when the energies of the system begin to be depressed, or the complaint assumes from the first a spasmodic character. 71. Of those medicines which are antispasmodic from their sedative operation, the most important are colchicum, opium, hyoscyamus, hydro-cyanic acid, digitalis, and tobacco. Cotchicum may be given combined with calomel, in the early and in- flammatory states of the disease, or with ammonia or camphor, at a later period ; but it ought, in young children especially, to be exhibited with ex- treme caution, — in very small doses, and care- fully watched. It came into fashion in this and other diseases of the air-passages a few years since, and was, for a time, much employed ; I then saw some cases of croup in which it had been very injuriously employed, from having been given in too large doses for the age of the child, or too long continued, or combined with other depri- ments, as antimony, &c., or exhibited after very large depletions. I can most truly assert, that I have seen at least two cases of croup, in which death was to be imputed to this substance, rather than to the effects of the disease ; and yet it is sometimes of use when combined as I have now advised. Of digitalis 1 have had no experience in this complaint ; if exhibited at all, it should be conjoined with calomel. Hi^dro-cyanic acid has been employed in some cases which I have seen ; but the same objections I have urged against col- chicum apply to it, when prescribed for young children. In older patients it is sometimes of benefit, combined with camphor, or oxide of zinc, or other stimulating antispasmodics, in com- bating the irritability and disposition to spasmodic paroxysms in the latter stages. Opium was much much too far. If his success has been equal to what he conceives it to have been, the cases which he has met with have been unusually slight. There is no doubt of bleed- ing, blistering, purging by calomel, &c. &c., having been pushed to hurtful lengths in many cases, or inappro- priately employed ; and the same maybe said as to other means, which have tended more to exhaust the vital energies than to cure the disease ; and there can be no doubt of the disposition to spasm becoming greater, and of its consequences being more to be dreaded, the lower the powers of life sink ; for, with such sinking, the general sensibility and irritability of the frame increase. But I cannnot conclude that those means could have been dis- pensed with in any considerable number of the cases which have fallen under my observation, and in which I have never omitted also to employ antispasmodics of the most active nature, from a conviction that the disease partly de- pends upon spasm. Mr. K.'s observations as to the treat- ment of the disea-e are to the following effect ; — "I never bleed or blister a child in croup : I have never thought it requisite to do so, since I have adopted the plan alluded to ; although sucii auxiliary practice would be in no other respect incompatible, than as tending to invalidate the general strength. »The treatment I alhido to consists in confining the child to a uniform and rather warm tem- perature, giving an emetic of ipecacuanha, and, in an hour after, commencing the following mixture : — No. IGt. R Pulv. Valerianae 3ij.: Oxymel. Scillsejj.j Tinet. Ojiii gtt. xx. ; Aqua; Destillats ,5 j. Misce. I administer a teaspoonful every hour, if the child is from two to five years old ; if from five to eight, every five and forty minutes, so as to maintain the anodyne effect of opium, and thesub-nauseant, expectorant, antispasmodic effects of the squill and valerian, until the symptoms are removed ; which commonly happens in ten or twelve hours, and which I have never seen protracted beyond eight and forty. On their subsidence, I have, in general, given a brisk dose of calomel and jalap." Mr. K. likewise recommends the above treatment in hooping cough and in catarrh ; and in those cases which are unconnected with inflammatory action, it is not inap- propriate. In the slight and more spasmodic states of croup, it also will prove very beneficial. CROUP — Prophylactic Tueatment employed, after depletions, by Kendrick and HuGGANs. It may be used both externally and internally (as may the preparations of morphia), with aromatics, camphor, or assafoetida, musk, &c., in the states of the disease now mentioned. Henbane, and extract ofpoppi), may also be em- ployed under similar circumstances and forms of combination. Tobacco has been prescribed in croup, in various modes. Dr. VANDEnBURcii and Dr. God.man recommended a plaster covered wiih Scotch snuff to be applied across the top of the sternum ; and myself and others have em- ployed tliis substance, with the view of detaching the false membrane by exciting sneezing and an increased secretion of mucus. The smoke of to- bacco has also been directed to be inhaled, in order to remove spasm, and promote expectora- tion, by its direct operation in the air-passages ; and others have advised the patient to smoke a cigar, with the intention of producing nausea, as well as the other effects last enumerated. After depletion, and when the disease is about its acme, the powers of life not being materially exhausted, a cautious use of this means may be serviceable. In the case of children who cannot use a cigar, the smoke of one may be blown around them, and in this way it will have a sufficient effect. Cloth moistened with an infusion of tobacco may, under some circumstances, be applied over the throat, and its effects carefully watched ; but this measure is not without hazard, particularly after lowering remedies have been used, or in an ad- vanced stage of the malady. 72. y.. The preparations of ammonia have been much employed in all the states of croup. Caus- tic ammonia, in doses of three or four drops, given every hour ; ammoniacal liniments being at the same time applied about the throat; has been ad- vised by some writers, in order to promote the excretion of the concrete exudations in the third stage of the disease. The sesqui-carbonate of ammonia has been more generally employed. M. Rechou prescribed it both internally, and externally in ointments to the throat. In the latter stages, as a useful antispasmodic stimulant, it may be some- times of service ; it is very advantageously com- bined with camphor, or even with calomel, in the complications of croup with angina maligna, or with any of the eruptive fevers. M. Chamerlat has recommended the hydro-chlorate of ammonia to be taken internally, and applied to the fauces, when the disease is associated with inflammation of the throat. The cupri ammonio-sulphas and the hydro-sulphnret of ammonia, have also been prescribed in doses suitable to the age of the pa- tient. They may be sometimes of service in the more spasmodic states ; but I have had no expe- rience of their effects in this complaint. 73. V. M. Valentin has recommended the ap- plication of the actual caittery upon each side of the throat, in the most severe forms of the disease when it is at its acme. Moxas seem to be pre- ferable to the actual cautery ; and, if this practice should be adopted, it might, perhaps, be advan- tageous to follow it by fomentations placed over the trachea. M. Dupuvtren employed in one case, referied to by Guersent, a small rod of whalebone covered by pieces of sponge, which was introduced into the pharynx in order to re- move the partially separated portions of false membrane lodged in that situation, or partly 471 thrown out from the larynx. In the advanced stage of croup complicated with angina pharyngea, this contrivance is calculated to succeed. 74. f. Tracheotomy. — There does not seem to be a chance of success from this operation in any case wherein the treatment developed above has failed. The practitioner, however, may be called to a case so late in the disease, and where the suffocation is so imminent, that the propriety of having recourse to it may be admitted : but, even in these, the chances are infinitely greater against than in favour of its success; and if benefit can be obtained from any measure, it is as likely to accrue from the energetic exhibition of suitable emetics as from tracheotomy. Cases have doubt- less been recorded of the success of the operation in croup ; but these are so very few, compared to the number in which it has failed, that I per- fectly agree with Goelis, Cheyne, Roveu- CoLi.ARD, Porter, Wood, and many others, in concluding that it should seldom or never be at- tempted in this disease. Of the propriety of having recourse to it in certain states of laryn- gitis, &c. there can be no doubt ; and it may, with some slight grounds of hope, be resorted to when croup is chiefly confined to the larynx and upper portion of the trachea ; also, perhaps, in some cases of its consecutive occurrence upon in- flammation of the throat with membranous exuda- tion ; and when we infer, from the general symp- toms and the signs furnished by the stethoscope, that the bronchi and lungs are unaflfected ; but in that period of the simple as well as of most of the complicated forms of the disease, in which only it should be attempted, and when internal treatment has failed, I believe that the superin- duced lesions in the bronchi, lungs, circulating- fluid, and nervous system, are such as to preclude hopes of its success. IMoreover, the feelings of the parents regarding it, and the reputation of the physician and operator, are not to be kept out of view. " Ad tracheotomiam," says Goelis, " om- nium reniediorum incertissimum confugere res ardua est ; parentes abhorrent, ayersantur agnati et periclitatur medici farma, quem, infausta si fuerit operatio ac votis illudens, lacrymis multis velut homicidam prolis amatai detestantur pa- rentes." 75. ii. Prophylactic Treatment, &c. — A. Goelis states, that he never saw a child with por- rigo and other chronic cutaneous afl^eclions at- tacked by croup whilst they remained fully de- veloped, even when this disease was most preva- lent. He therefore advises the having recourse to any form of issue, when an attack is dreaded. I'o resort, however, to emetics, to anlimonial medi- cines,to counter-irritants, todepletions, to confine- ment in-doors one half of the year, and other measures which have been advised, is attended with gieater mischief than to allow the child to run the slight risk there is of his having the disease. The case, however, is dift'erent in respect of a child who has once suffered an attack. The lia- bility of croup to recur, even several times, after intervals of various duration, renders precautions, under such circumstances, very requisite. The chief of such measures are — removal from the predisposing and exciting causes (§ 24 — 31.); change of air and locality ; the use of the shower or cold bath every morning, the skin being well rubbed with a hard or coarse cloth afterwards ; Hh 4 472 CROUP— Diet and Regimen, the wearing of flannel next the skin, and of a neckcloth in winter and spring ; light nourishing diet, with strict attention to the secretions and ex- cretions ; immediate recourse to medicine upon the appearance of catarrhal or croupal symptoms; and a careful avoidance of exposure to cold and moisture. When croup occurs in one child of a family residing in situations where it prevails, more will probably be attacked. In such cases, removal to a healthier air is requisite. When it is prevalent either in a simple or complicated form, aad particularly when the locality also in- creases the risk of seizure or relapse, the occa- sional exhibition of small doses of calomel and James's powder, or of hydrarg. cum creta with the carbonate of soda, or the having recourse to either of tliem every second or third night, may be tried. In this country, care should be taken not to expose children to the north-east winds of spring, particularly when they follow heavy rains, &c. 76. B, The Diet and Regijien, in the more acute and inflammatory forms of croup, should be strictly antiphlogistic ; and all food siiould be withheld until the stage of exhaustion supervene, when, if light nourishment can be taken, or be desired, it should be given. In the more spasmodic or prolongedforms, light food m.aybe taken in small quantity. The best beverage of which the patient can drink is a very weak decoction of marsh- mallows and liquorice root, to which a little candy and bi-borateof soda are added. The temperature of the room should be moderately and equably warm. 77, C. During Convalescence, change of air, as soon as it can be safely permitted, is especially beneficial; and strict attention ought to be paid to the prophylactic means stated above (§ 75.), in order to prevent a relapse or recurrence of the malady. These precautions are required during, and for some time after, recovery from the com- plications and consecutive affections of croup, as well as from its simple forms. In the winter and spring months especially, the convalescent should be kept in apartments moderately and as equably warm as possible. BiBLioG. AND Refer. — Hippocrates, Coacse Prano- tiones, cap. iii. edit. Vamler Linden, vol. i. p. 5.55 — Bai/ti- nius, Epid. Ephemcriil. l.ii. p. 197. 201.— P. iVn!H-,Miscel. Observ. in tlie Practice of Physick, &c. Lond. 1718 G/ii.si, Lcttere Mediche. Cremona, 1749, art. 2. — Starr, in Pliilosoph. Transact. No. 495. for 1749 and 1750 — Simp- son, De Asthmate Infantum Spasmodico. Ed. Svo. 1761. — Tf'ilcke, De Angina Infantum Recentior. Annis Ob- scrvata. Upsalse, 17G4. — /'«« Bergen, De Morb. Trucu- Icnto Inf. &c., in Nov. Act. Nat. Curios, t.ii. p. 1.57. Lips. 17G1. — Home, Inquiry into the Nature, Cause, and Cure of Croup. Edin. \76!y.—Halenius, in Fortsattningof Provin. Doctorernas BerUttelscr. Stockholm, 1765. ( Contagious.) — Wahlhom, in Ibid. p. I HI. (Contagiovs.) — Bard, in Amer. Philosoph. Trans, vol. i. p. 322. — Millar, Observ. on the Asthma ami lloopinK Cough, Kvo. hond. 1709. Crav'ford, De Angina Kfridula. Edin. 1771 Hnsscl, The (Economy of Nat. in Acute Dis. Lond. 1775. — Ilttsli, On tlin .Spasm. A.sthma of Children, &c. I,ond. J770. — Mic/iaclis, De Angina Polyposa. Goet. 177H. — -J. .Jolinstonc, On the Mallg. Angina, with Kcmarks on Angina Tradicalis. Worcest. 1779 — Baylcy, Cases of Ang. Trachealis. N. Y. 1781, 8vo. — Bosenstein, Kindcr- krankheiten. Kd. 1798, p. (7.3. — Cookson, Do Astlnnate Acuto Infantum. Edin. 17«0, Svo. — Pearson, Med. F.ncts and Observat. vol. vii. art. 10 Dixon, in Med. Comment, vol. ix. p. 254. — Anderson, On Calomel, in Croup, in Duncan's Annals of I\Icd. vol. iii. p. 451., and vol. iv. p. 4.59., ,nnd vol. vi. p. .'IWB. — Archer, in Ibid. vol. iv. p. 511. — Disncij, On the N.iture and Cure of Cynanche Tmchoalis, 1794. — Alexander, On the Croup. Lond. 1793. — Ferriar, Medical Histories, &c. vol. iii. art. 4 Field, in Mem. of Med. Soc. of Lond. vol. iv. p. 151., and vol. v. art. 20 Smith, in Ibid. vol. vi. p. 74. aicgborovgh mi.Guitskell, in Trans, of Med, Soc. vol. ii. — Ru7nsey, in Trans, of Soc. for Improvement of Med. Knowledge, vol. ii. art. 3. — Harles, in Hvfelamts Journ. d. Pr. Arzneyk, b. vi. p. :M). — Loefler, in Ibid. b. iii. p. G97. —Hujelatid, Ibid. b. ix. st. 2. p. 180. ~ Lentin, in Ibid. b. ii. p. 1G7.; et Beytrage, b. i. p.300.,b. iii.'p. 199. — Maerclcer, in Hufeland's Journ. der Pract. 'Heilk. b. XIX. St. 3. p. 83 — Hiifeland, Ibid. b. xix. st. 1. p. 177 Hecker,\\.\-x.. st. 3. p. \2. — Darwin, Zoonomia, vol. ii. — Bush, On Cynanche Trachealis, in his Med. Inquiries and Observat. Lond. 1789, 8vo. — laughan, in N. Y. Med. Kepos. vol. iii. p. ZiO. — Barker, in Ibid. vol. vi. art. 3.— Po; to;, Memoire sur Plus. Malad. t. iii. p. 65. — J. M'Grigor, in Edin. Med. and Surg. Joutn. vol. i. p. 282 Reckon, in Journ. Gcner. de. Med. t. xx. p. 3. — Michaelis, in Ihifcland and Hitnbfs Journ. der Pract. Heilk. 1809, st. G. p. 44. — ScMilter, in Ibid. July, 1821, p. 124.— Wigand, in Ibid. Feb. 1810, p. IGI.— Hecker, Von der Entziind im Halse, &c. Berl. 1809. ; et Annalen, Dec. 1810, p. 512. — Wichma7in, Ideen zur Diagnostik, b. ii. p. 103. ; et in Hufeland's Journ. d. Pr. Arzneyk, b. ii. p. 27.— Giraudy, De I'Angine Trachcalc. Paris, 1811 — Eschcnmayer, Die Epidem. des Croups zu Kirchheim, 1807, 8vo. Stut. 1811. — Cheyne, Pathol, of the Memb. of Larynx and Bronchia, 8vo. Edin. 1809 Rogery, in Journ. Gen. de Med. t. xxxviii. p. 1.53 Heim, in //o/vj's Archiv. 1810, p. 379 Neumann, in Ibid. Mart. 1811, p. 234. — Seha-ffer, in Ibid. July, 181 1, p. 155. ; et in Hufeland's Journ. d. Pr.'Heilk. Nov. 1810, p. 80. —Double, Traite du Croup, 8vo. Paris, 1801.— Chaussier, in Journ. de Med. Contin. May, 181 1 , p. 74., et Dec. ■p.'lbn.—Leeson,'m Med. and Pliys. Journ. Nov. 1801. Wainwright, in Ibid. April, 1800. — 'iVillan, Reports on Dis. of London. Lond. 1801, 8vo. — Latour, Blanuel sur le Croup. Paris, 8vo. — C/ia?nerlat, Journ. de Med. &c. t. xxvii — Boycr-Collard, in Diction, des Sciences Med. t. vii. p. 412. — Chevalier, in Transac. of Med.-Chirurg. Soc. vol. vi. p. 151 — Herder, in Journ. Univers. des Sc. Med. &c. t. xiv. p. 225. — J. A. Albers, Comment, de Tra- cheitide Infantum, &c. 4to. Lips. 1816. (Obtained the prize given by Napoleon.) — L. A. Goelis, Tract, de Rite Cogno. sccnd.i et Sananda Angina Membranacea, Svo. Vien.1813. — Grimaud, in Journ. Compli^m. des Diet, des Scien. M(?d. Jan. 1822. — Author, in Lond. Med. Repository, vol. xix. p. 46. — Schmidt, Journ. des Progres des Scicu. Med. t.ix. p. 244 Lobslein, in Memoir, de la Soc. Med. d'EmuIation, t. viii. p. 500. — I.ouis, Meraoires Anato- mico-Pathologiques, 8vo. Paris, 1S26, p. 203. ; et in Ar. chives Gener, do Med. t. iv. p. 5. et369. (In the adult.) — Beddelin, in Pliiladelpli. Journ. of Med. Science, vol. v. p. 201. iSn?rffi'i.^—Ho.tf}iiiinii, in Ibid, vol.vi. p. 409. {Sulph. cupri.) — ; altntin and H 'igard, in Lond. Med. Repos. vol. i. p. 122. 285. 48. — Serf, in Ibid, vol.iv. p. 143. 464. (PotasscB sulphur.) — Schmidtmann, Observ. Med. vol. ii. p. 24 Editor of Quarterly Journ. of For. Med. vol. v. p. 618; — J. B. Lacroix, D'Une Epidemie de Croup, &c. Svo. Paris, 1822. ; et in Nouv. Journ. de Med. t. xiv. p. 176. — Godman, in Journ. de Progres des Scien. Med. t. xiv. p. 249. — Blaud, Nouv. Rech. sur la Laryngo-Tracheite, kc. 8vo. Paris, 1823. ; et in Nouv. Biblioth. Med. t. iv. p. 40 — Billard, in Archives G(?ner. de Med. t. xii. p. 544., et t. XX. p. 491 — Quvrard, in Ibid. t. xii. p. 631. (Epi- demie.)— Guersent, in Ibid. t. xvii. p. 493 Bretonneau, in Ibid. t. xiii. p. 5., et t. xxiii. p. 387. 519. (Comp. with ang. pharyngea.) — Tilleneuvc, in Ibid. t. xviii. p. 308. ( ]Vith ang. pharyng.) — Horteloiip, in Ibid. t. xviii. p. 57. — Bourgeois, in Ibid. t. xix. p. 134. (Comp. wtth ang. faitc.) — Giraudet, in Ibid. p. 586 Trousseau, in Ibid. t. xxi. p. .541. (Comp. with Scarlatina.) — Einangard, Amer. Journ. of J'el. Sciences, vol.vi. p.l8I. — Fander- burgh and Godman, in Ibid. vol. ii. p. 480. — S. Jaci.son, in Ibid. vol. iv. p. 3G1. — Hosack, On Croup, in Essays on var. Subjects of Med. Science, vol. ii. p. 133. N. Y. 1824. 8vo. — Balliard, in Journ. Hebdom. t. iii . p. 1 13. — Deslandes, in Journ. des Progres des Scien. Med. t. i. p. 152. — Moronval et Lavicz, in Rev. Med. t. ii. 1825, p. 147 Mackenzie, in Edin. Med. and Surg. Journ. vol. xxiii. p. 29+ Robert. son, in Ibid. vol. xxv. p. 279 Pretty and Sym, in Med. and Physical Journ. for Jan. 1826 G. Gregory, in lliid. Oct. 182.5. — J. Hamilton, Edin. Journ. of Med. Sciences for October, 1826. — Matins, De Cynanche Tracliealia, Svo. Edin. 1830. — Guersent, in Diet, de Mederine, t. vi. p. 211.—//. M. J. Desruelles, Tr.iite Tliioriq. et Pratique du Croup, &x. Svo. Paris, IS21.— T. Gui/iert, Rccherches NouvcUcs sur la Croup, et sur la Coqueluche, Sec. Svo. Palis, 1824. — P. Bretcnncau, Sur la Dipbthcrite, ou In- Ham. Pelliculaire connue sous Ic Nom de Croup d'Angine Maligue. etc. Svo. Paris, 1826. — TK //. Porter, On tlie Surgical Pathol, of the Larynx .and Trachea, with rela- tion to the Operation of Bronehotoniy, &c. Svo. Dublin. 182G. — Kimbell, in Lancet, vol. xvii. p. 160. — Brichetcau, Prc'cis Anal, du Croup, et de I'Angine Couenncuse, Ike, et Rap. sur les Memoir, env. au Concours sur le Croup, &c., par Royer-Collard, Sec. Svo. Paris, 1826. — Jurine, ill Rapport d\\ Royer-CoUard, in Ibid Mills, On the Morbid Appear. oY the Trachea, &c. Svo. Dub. 1829. — Wood, in Transac. of Med. and Chirurg. Society, vol. xvii. p. 169 Bou', in Brit, and For. Med. Rev. vol. iv. xi.'iVi. — Hatin, in Ibid. vol. vi. p. 530, DEBILITY — Division of its Conditions. CYANOSIS. See Blue Disease. CYNANTHE MALIGNA. See Scarlet Fe- ver ; and Pharynx, Iiijiammations of. CYNANCHE PAROTID^A. See rARoxiD, Injiammation of. CYNANCHE FHARYNGEA. See Pha- rynx, Iiijiammations of. CYNANCHE TONSILLARIS. See Ton- sils, Iiijiammations of. CYNANCHE TRACHEALIS. See Croup. CYSTITIS. See Urinary Bladder, Injiam- mntions of. DEAFNESS. See Ear, Diseases of; and IIear- iNo, Disorders of. DEBILTTY. — Syn. Adi/namia, Asthenia, Ato- nia, Delnlitas, Lat. Die Schu'dsclie, Sclnmsch- heit, Ger. Dtbilile, Astlienie, Fr. Debolezza ; iUi\. Vital Depression, Diminished Vital Power or Energy. Classif. — General Pathology; Patho- geny. — Special Patiiolooy. I. Class. 1. Defin. — That departure from the licalthy condition ofthej'rame, which consists (fa diniinu- tiun of its vital energies — of an enfeebling of its pouers, manifested in numerous conditions and grades throughout the whole frame, or more or less remarkably in particular systems or organs. 2. Debility is a state of vital manifestation inti- mately connected with the nature of disease ; and in whatever acceptation it has been understood, it has been admitted by every physician who has looked beyond the grosser and more palpable changes superinduced in the economy, as not only a most important pathological condition, but as often constituting what is, in the common language of medicine, disease itself. It often performs a principal part in the commencement, and towards the close, of the most severe maladies ; and its modifications are amongst the most difficult in pathology to detect and to interpret ariglit. Se- veral of the appellations it has received have been more or less restricted to certain of its con- ditions; as adynamia, to want of muscular or animal power; atonia, to deficient vital tension and tone of circulating and exh.aling vessels ; asthenia, to depressed energy of organs essentially vital, &c. ; but as the distinctions between them have never been made with sufficient precision, and have seldom been preserved, and as they have all been used synonymously by the best modern writers, they will be thus received at this place. 3. It might appear interesting to ascertain the varieties and grades of debility ; but this is a matter of no easy accomplishment, if not entirely beyond the reach of our powers. Debility is, besides, a relative term ; and of its extent or de- gree of departuie from tliat condition of vital power requisite to the perfect performance and continuance of the functions, we can form no very precise idea, even were we agreed upon the standard of power by which the comparison should be made. Of its numerous grades and manifestations, from the slightest departure from health to the utmost consistent with existence, there can be no cjuestion ; and therefore they cannot be otherwise than arbitrarily appreciated. This will appear obvious to any one who will refer to the numerous varieties into which Vccel and Sauvages have divided asthenia. 4. Divisions of. — It will be preferable, therefore, to consider debility in respect merely 473 of its principal conditions relatively to the oper- ation of the chief causes which induce it ; and in order to elucidate its morbid relations, and its influence in producing and perpetuating further disease, to enquire into its manifestations and effects on the various general systems and organs of the body. I'he majority of pathological writers iiave found great difficulty in considering this subject, and scarcely any two have agreed as to the manner of discussing it, or as to its nature. Some have viewed it as the negative of excit- ation, or a minor degree of that state of excite- ment induced in the system by the agents sur- rounding and acting upon it, — by privation, or change of the factors of life (Hartmann). This opinion, which may be traced to the Stvictnin and Lamm of Tiiemison ; but which was first insisted on, in a manner at all accordant with the doctrine of solidism, by Brown, and variously modified and illustrated by his contemporaries and followers ; led to the division of this grand pathological state into two forms, — direct and indirect debility. This division was adopted by Darwin ; ami Rush followed the same track, denominating the former debility from aiistractinn, the latter debility from action. IIasori and To.m- 3IASINI hardly even modified the doctrine of Brown, when they divided it into primary and secondary ; the former arising from contra-stimu- lating, the latter from stimulating, impressions. BuoussAis followed a similar arrangement, but considered that it is primary in very few instances, and only from the abstraction of stimuli. 'J'he sim- plicity of these divisions is their chief recommend- ation ; but it is carried so far as to be inconsistent with the complexity of those derangements to which the human frame is subject. This feeling seems to have induced Boisseau to impute it to three sources : 1. To a complete or prolonged ab- straction of the accustomed stimulus; 2. A dimi- nution of the reciprocal stimulating influence of the organs ; and 3. To the inordinate excit- ation of a part, rendering the others incapable of acting with energy. M. Brachet, adopting similar views to my own, but several years after mine were published, both in the London Me- dical Repository and in my Physiological Azotes, refers debility either to diminution of the action of the cerebro-spinal system, enfeebling the func- tions over which it presides, or to depression of the functions dependent upon the influence of the organic or ganglial nerves ; the weakness of the nervous system arising, as he thinks, either from deleterious states of the blood, or diminution of its quantity, Hufeland divides it into fj-i/e, and apparent or /'ii/se; the one from change of the nervous sensibility, the other from oppression of the vital powers. Dr. Geddings, the most recent writer on the subject, considers debility, 1st, as direct, when arising from the abstraction of stimuli, or the operation of contra-stimuli, or such substances as " directly enfeeble the organ- isation ; " 2dly, as indirect, or that resulting from exhaustion, and "from deterioration of the nutritive molecules of the blood ; " and, 3dly, as metastatic, or that form proceeding from inordi- nate irritation of one organ leaving the others in a minor state of excitation. It is impossible to examine the conditions of debility with any de- gree of precision abstractedly from their principal causes. I shall, therefore, witii due regard to 474 DEBILITY ■— Primary, this connection, consider, 1st, The primary or direct states of debility ; 2dly, Its consecutive or secondary conditions ; and, 3dly, Those forms, consisting not only of depressed, but of otherwise morbid or vitiated, vital manifestation — or com- plicated debility. After having discussed these topics, with reference to general dehility, the more special or partial states of debiliti/, and its conse- quences, will be brought into view; and the sub- ject pursued in its relation to general and special pathology. 5. 1. Conditions or Debility. — i. Priimahy Debility (Direct, Brown; True, Hufeland ; from Abstraction of Stimuli, Rush and Boisseau). This state of debility is not so frequent as is com- monly supposed, although by no means so rare as Broussais and his followers contend. ]Many of the cases commonly imputed to it strictly belong to tlie other conditions specified above (§ 4.). Primary debility may be, (a) Original, or con- genital; and (b) Acquired. — A. The former of these is observed in the children of exhausted, dissipated, or aged parents, — especially the male parent, — and is familiar to every common ob- server. It also presents itself in the infants of those who are of a strumous diathesis, although generally in a slighter grade, and more frequently obscured by concurrent disease of particular or- gans. This form of debility seldom continues long without being followed by some specific malady, which it either remarkably favours, or even more directly produces, — causes, which are innocuous as respects infants of originally sound stamina, variously affecting, and ultimately blight- ing the debilitated offspring. 6. B. Acquired debility presents itself to our notice in every stage of life. If it supervene in infancy and childhood, it may be, to a certain extent, perpetuated in the constitution through life. But, in whatever period it may occur, it is most frequently the consequence of the abstrac- tion oj' stimuli necessary to the excitation and per- petuation of the vital manifestations to a requisite extent. — («) The infant that is not sufficiently, or is injudiciously, or unnaturally lumrished, if it escape any of the maladies to which it is thereby disposed, becomes pale, languid, soft, and en- feebled, or altogether diseased: it wastes; its flesh is flabby ; its growth is impeded ; and it at last is tiie subject of anajmia, or of tubercles, or of worms, or of disease of the digestive canal, of the mesenteric and other glands, or of the joints and bones. But insufficient or inappropriate nourishment affects all periods of life in nearly a similar manner. A fish diet through life gives rise to a weaker conformation of body than food of a mixed kind. This was proved by Pkhon in respect of the natives of Van Diemen's Land. Similar effects follow an exclusively vegetable diet, although not to so manifest a degree. It should, however, be admitted that those who are obliged to live on one kind of food alone are more liable to experience insufficient su])- plies of it. — (b) The abstraction of the ani- mal xcarmth is another cause, occasioning a modified, and, as it were, an acute form of debility, followed by peculiar effects, which are fully described in the article Cold. — (f) 1 he privation of solar light has a marked infl\ience on the vegetable creation ; plants being pale, sickly, and imperfectly developed, and their proper juices scantily and insuffi- ciently elaborated. An analogous effect is produced by the same cause on the animal crea- tion, and particularly on man — the body becom- ing pale, sickly, and etiolated ; the senses remarkably acute ; the general sensibility and muscular irritability much heightened ; the or- ganic actions readily influenced by the slightest external agents*; and the circulating fluids thin, watery, and deficient in albuminous constituents, and red globules, and in quantity. Facts illus- trative of this occurrence are adduced in the article on anaimia, which is thereby produced. (See Blood, Deficiency of, § 41.) The phy- sical and mental debility resulting from confine- ment in dungeons and dark cells is to be attri- buted to the exclusion of light, restricted diet, want of exercise and of free air, and to moral causes combining with these in depressing the vital powers, and ultimately producing disease of a low and dangerous form. — (d) Intimately con- * The remarkable and authentic history of Casper Hauser, by the President Von Feuebbuch, furnishes striking illustrations of the above. The accounts which have been recently published of this person should be at- tentively perused by every pathologist and philosopher, as being most singular and instructive. Casper Hauser was kept, from infancy until he was eighteen years of age, in a perfectly dark cage, without leaving it ; and where he neither saw a living creature, nor heard the voice of man. He was restricted from using his limbs, his voice, his hands, or senses ; and his food consisted of bread and water only, which he found placed by him when wakening from sleep. When exposed in Nurem- berg, in 1828, he was consequently, at eighteen years, as if just come into the world ; and as incapable of walking, discerning objects, or conveying his impressions, as a newly born infant. These faculties he, however, soon acquired; and he was placed under an able instructor, who has recorded his history. Darkness had been to him twilight. The light of day at first was insupportable, inflamed his eyes, and brought on spasms. Substances, the odour of which could not be perceived by others, produced severe effects in him. The smell of a glass of wine, even at a distance, occasioned headach ; of fresh meat, sickness, &c. ; and of flowers, painful sensations. Passing by a churchyard with Dr. Daumer, the smell of the dead bodies, although altogether imperceptible to Dr. D., affected him so powerfully as to occasion shudder, ings, followed by feverish heat, terminating in a violent perspiration. He retained a great aversion, owing to their disagreeable taste and smell, to all kinds of food excepting bread and water. When the north pole of a small magnet was held towards him, he described a drawing sensation proceeding outwards from the epigas- trium, and as if a current of air went from him. The south pole affected him less ; and he said it blew upon him. Professors Daumer and Herrmann made several experiments of this kind, and calculated to deceive him ; and, even although the magnet was held at a consider- able distance from him, his feelings always told him very correctly. These experiments always occasioned per- spiration, and a feeling of indisposition. He could detect metals placed under oil-cloths, paper, &c., by the sens- ations they occasioned. He described these sensations as a drawing, accompanied with a chill, which ascended, ac- cording to the metal, more or less up the arm ; and were attended with other distinctive feelings, the veins of the hand exposed to the metal becoming visibly swollen. Tlie variety and multitiulo ofobjects which at once came rushing upon his allcnticin wlicu he thus suddenly came into existence — the unaccustomed impressions of light, free air, and of sense — and his anxiety to comprehend them — were too much for his weak frame and acute senses : he became dejected and enfeebled, and his nerv- ous system morbidly elevated. He was subject to spasms and tremors ; so that a partial exclusion from external excitements became for a time requisite. After he had learned regularly to eat meat, his mental activity was diminished : his eyes lost their brilliancy and expression ; the intense application and activity of his mind gave way to absence and indifl'erence ; and the quickness of appre- hension bi'canie diiniiiislicd. Whether this change pro- ceeded from tlic iliange of diet, (jr from the (lainful excess of excitemcMit which preceded it, may he ques- tioned. My limits admit not of my adding more. The whole account is most important — the more so, as the physiological facts stated in it may be relied on. DEBILITY — Consecutive. 475 nected with this cause and its effects is tlie pri- vation of fresh air and exercise. When muscular action cannot be performed under favourable cir- cumstances, particularly as respects the requisite renewal of air, the circulation languishes, and suffers deterioration ; the developement of the locomotive organs is either impeded or pre- vented, and they are no longer in a fit state for the execution of the acts of volition. By a want, also, of a requisite renewal of air, the stimulat- ing constituent of it becomes diminished, and re- placed by directly sedative gases, and by vapours loaded with the effluvia of the system that respires it, or of those which may respire it in the same place ; the extent of the stagnation or confine- ment of air, and of the causes of deterioration, proportionately heightening and accelerating the depressing effects thereby produced upon the frame. — (e) It is extremely probable, that what- ever, in its passage through the digestive canal, or circulation through the body, abstracts o.iygen from the siistem, will be also, to a certain extent, a cause of debility, as supposed by Humboldt. The causes of scurvy may be partly of this de- scription ; as well as those of several other dis- eases.— (f) A not uncommon cause of de- pressed vital power is the young sleeping icith the aged. This fact, however explained, has been long remarked, and is well known to every un- prejudiced observer. But it has been most un- accountably overlooked in medicine. I have, on several occasions, met with the counterpart of the following case : — I was, a few years since, consulted about a pale, sickly, and thin boy of about five or six years of age. He ap- peared to have no specific ailment ; but there was a slow and remarkable decline of flesh and strength, and of the energy of all the functions — what his mother very aptly termed a gradual blight. After enquiry into the history of the case, it came out that he had been a very robust and plethoric child up to his third year, when his grandmother, a very aged person, took him to sleep with her ; that he soon afterwards lost his good looks ; and that he had continued to decline progressively ever since, notwithstanding medical treatment. I directed him to sleep apart from his aged parent ; and prescribed gentle tonics, change of air, &c. The recovery was rapid. But it is not in children only that de- bility is induced by this mode of abstracting vital power. Young females married to very old men suffer in a similar manner, although seldom to so great an extent ; and instances have come to my knowledge where they have suspected the cause of their debilitated state. These facts are often well known to the aged themselves, who con- sider the indulgence favourable to longevity, and thereby often illustrate the selfishness which, in some persons, increases with their years. — (g) It is extremely possible that whatever conducts the electi-icitii of the body from it will occasion direct debility. With this view I have long been in the habit of causing females who used steel sup- ports to their stays to lay them altogether aside. The experiments on Casper Hauseu confirm this supposition. — {h) Intimately related to the causes consisting of abstraction of requisite stimuli, and to the effects resulting therefrom, seem to be the privation of those excitants to which the frame has been long habituated ; although these. as well as their effects, may be considered as falling more strictly under a different section of this subject. The privation, by whatever cause, of those states of electrical tension whicii exist in healthy conditions of tlie body, and fright, or prolonged fear, may also occasion primary de- bility. 7. C. But the vital power is enfeebled by another class of causes — by agents which f^eem directly to depress it below its healthy standard. These agents have been called contra-stimulants by the Italian physicians of the school of RAsoni. — (a) Several of those, however, when employed in sufficiently small quantities, actually excite the parts to which they are applied ; and it is only when they are used in large doses that an oppo- site effect — violent depression and even annihi- lation of life — is produced. A minute quantity of prussic acid, or of tobacco, excites the organic functions ; a large quantity instantly destroys life : and the remark applies, to a certain extent, to nearly all the more energetic narcotics ; al- though many of them, as well as several other agents, whilst they depress the vital manifest- ations generally, also excite or irritate particular organs or tissues. Tartar emetic, acetate of lead, oxalic acid, colchicum, stramonium, belladonna, &c. furnish illustiations of this fact. — (b) The primary effects of terrestrial ejjiuiia or malaria, and of the itifectious emanations proceeding from the diseased, as from those affected by plague, yellow fever, typhus, and pestilential cholera, are evidently most acutely debilitating, even although these causes may also, and at the same time, act by irritating certain organs or tissues. — (c) \'arious mental emotions are also very powerful depriments of vital power, such as fear, anxiety, grief, longings after objects of affection, nostalgia, &c., particularly if they be of long continuance : they retard all the organic func- tions, and at last wither the whole organisation. — (rf) W^hatever impedes respiration, owing to the effects of this function upon the circulation, and on the blood itself, and consecutively upon the organic and cerebro-spinal' nervous systems, also depresses the vital power in a very remark- able manner. Among the causes of primary debility. Dr. Geddings has included anccmia. There can be no doubt of the existence of de- bility, when the blood is deficient or impure ; but, instead of being the cause, anemia is the effect of debility. 8. ii. Consecutive or Secondary Debiliiy may arise in two ways : (a) from increased ex- citation of an organ, occasioning proportionate diminution of the energy of others — sympathetic debility, or debility from an irregular distribution of the vital endowment ; and (b) from the exhaus- tion occasioned by previous excitement. — A.Syrri' pathetic Debility {Debilitas Spuria, Hufeland ; Metastatic Debility, Dr. Geddings.) WMien it is considered that the organic or ganglial nerves alone supply the blood-vessels, and the secreting organs and surfaces ; that they communicate very freely with each other, and with their chief centre, the semilunar ganglion ; that they are formed into numerous plexuses, rendering thereby the con- nection between them still more close; and that they are intimately related to the cerebro-spinal system, through the medium of communicating nerves ; the mutual dependence of action between 476 D E BI LIT Y — Complicated. the various organs of the body may be easily explained. If, moreover, it be granted, as I have endeavoured to prove in another work, that the most important vital phenomena, — as di- gestion, assimilation, circulation, secretion, ani- mal heat, generation, &c. — in short, that life itself, with all those manifestations of it now par- ticularised, and which have usually been called organic — result from the influence exerted by the ganglial nervous system, through the instru- mentality of the vessels and structures upon the circulating fluid they contain, and reciprocally by this fluid upon the nerves ramified in the parietes of the vessels, and upon the ganglia themselves, through which it must necessarily circulate, — the agency of this system in the pro- duction of the numerous phenomena of debility must be evident. From this view of the sub- ject, and taking into account the various func- tions of dissimilar textures, and, under certain circumstances, the combined influence and re- action of the cerebro-spinal system and senso- rium, the numerous relations of disordered ac- tions, as respects the manifestations not merely of debility, but of disease generally, may be more satisfactorily traced. 9. When one organ or general system is simply excited, without being otherwise diseased, the functions of other organs, with which it is more or less intimately related by means of the ganglial nerves, undergo a relative degree of change ; for as we exalt the vital manifestations in one or more parts of the series, we diminish them in equal pro- portion throughout the remainder. These views were first stated in the London Medical Bepositori/, for i\Iay, 1822, and fully illustrated in my Phy- siological Notes, published in 1824 ; and have since been adopted by Boisseau and Geddixgs. A due application of them is of the utmost im- portance in pathology and therapeutics, as well as in ascertaining a large proportion of the forms of debility, particularly those presented to us in the course of many acute and chronic diseases: thus irritation of the mucous surface of the sto- mach or bowels enfeebles the rest of the frame ; and inordinate excitation of any other secreting organ diminishes the nutritive and animal func- tions in an equal degree, and so on as respects various other viscera and structures, as more fully explained when describing the states of vital energy connected with the nature of disease. (See art. Disease.) 10. B. The Debility of Exhaustion, or from ex- citement of a part, or of the body generally (In- direct Dchilitii, of Brown). — This form of debility arises from all agents, mental or physical, which excite the actions of a part, or of the system, above its normal state. Many of these causes act with great rapidity and intensity, others very slowly and insidiously ; and whilstsome simply change the f^rade of vital action, others seem to alter it in kind. 'J'heir effects vary remarkably with the suscepti- bility of the organ and constitution on which they act, and. the frec|ucncy of their repetition ; each successive application being generally less efficient than the preceding, if it be delayed until the ac- tion of the previous one has terminated. The circumstance of stimuli being productive of ex- haustion, or indirect depression of vital power, to as great extent below the standard of health, as the previous excitement rises above it, as fully shown by Brown, Darwin, and Rush ; and that sti- muli must be repeated in larger quantity to pro- duce the same eflects, although presenting certain exceptions, are important facts as respects this pathological condition in particular, and disease in general : as long, also, as the repetition of the stimulus follows so quickly and regularly as to an- ticipate the appearance of the consecutive debility, the unavoidable consequences of its abstraction will not appear, at least for a very long time. But they ultimately will supervene in a most severe, and often dangerous, form, when such an event takes place ; and if it does not occur soon, the prolonged excitement will ultimately terminate in organic change. Drunkards and opium- eaters often furnish proofs of the latter fact ; and persons who indulge in an occasional debauch only, or who undergo great physical or mental exertions, feel the truth of the preceding positions. There is one cause, however, which requires to be particularised on account of its mode of operation and consequences : this is excessive sexual indul- gence. It occasions a loss of vital power through the medium of the discliarges, independently of the exhaustion consequent upon the previous nervous excitement. Its depressing cfTects arc, moreover, experienced by all the organs, but es- pecially in the ganglial and cerebro-spinal nervous systems ; and are often foUovi'ed by the most se- rious results in both male and female. 11. iii. Complicated Debility. — I have con- tended, in the article Disease, that the vital manifestations of an organ, or of the frame gene- rally, may be modified, not only in grade, but also in A/)!f/. If this be admitted, it follows that de- bility, originating in either of the ways now shown, may be either simple, or associated v/ith an other- wise morbid state of vital action. Upon a review of practical facts, we shall find that the more sim- ple states of debility most frequently occur either primarily — especially from agents abstracting vital power — or indirectly, from causes which over-excite the nervous influence, or which abstract as well as exhaust vital power ; such as the one last adduced (§ 10.). But the condition now under consider- ation is more generally the result of causes which either irritate in a slow and continued manner some particular tissue or viscus, or modify the sensibility of an organ, or change its secreting or nutritive actions, or even vitiate the condition of the circulating fluids. Whilst the preceding forms of debility are mostly met with in the commence- ment of diseases, or constitute the early stages of those ailments consisting almost entirely of simple asthenia, but which are often mistaken for structural maladies, this condidon is observed chiefly in the progress, or towards the close, of many acute and chronic complaints, some of which arc of a specific or malignant character; and it may arise out of cither of the foregoing varieties of debility, especially when much pro- longed. That which becomes so remarkable in the course of typhus, or yellow fever, of plague, or of syphilis, cancer, scrofula,. &c., consists not of a simple sociated disturbance of different organs and structures, and the want of prominent symptoms whereby tliey may be ascertained. Debility not only constitutes, in its more intense fornis, dis- ^ OL. I. D TEnMiNATiONS — Treatment. 481 ease itself, and a most serious part of many of the most dangerous maladies, but it also predis' poses the body to be affected by the numerous in- jurious agents to which it is constantly exposed. 28. iii. The Tredisposition to be affected by the exciting causes of disease, arising out of debi- lity, will necessarily vary with the form and grade it assumes, and the circumstances in which it has originated. This proposition is too evident to re- quire illustration. But when the debility proceeds fr'oni irritation of one or more structures abstract- ing vital power from the rest (§ 9.), it may not increase, but may, in some cases, diminish, predisposition, particularly when it is attended by exalted sensibility and accelerated circulation. Thus the debility attending irritation in any part of the respiratory organs even diminishes the disposition to be affected by malaria, and infec- tious or epidemic agents. So much, however, of what constitutes liability to diseases is owing to the temperameat, diathesis, the modes of life, and habit of body, as well as to general or local debility, that the exact share of each can rarely be ascertained. General debility, either in its direct or primary form, or as consecutive of over-excitement, disposes the system to be affected by terrestrial emanationSj vicissitudes of season and weather, and infectious efHuvia. The more local or partial states of debility, particularly when existing in secreting organs and the asso- ciated structures, render them liable to conges- tions, inflammatory irritation, to disordered secre- tion and excretion, to spasmodic or convulsive movements, to effusions, to various states of in- flammation, and organic change, with the ot!rerco«- seqxtences and associations of debility above enu- merated (§ 25, 26.), upon exposure to causes which disturb the balance of vital manifestation throughout the frame in a sudden or violent man- ner, or which impede the assimilating and depura- tory functions, and thereby disorder the vascular actions and the circulating fluid. (See Disease — Causes o/'.) 29. VII. Treatment. — In attempting to re- move debility, our means should be directed with a strict i-eference to its form, grade, and com- plication. These, however, are so numerous, that pr-ecise rules of treatment cannot be laid down; the only attempts of this kind that can be made, falling more appropriately under those diseases of which depressed vital power forms an essential part. (See especially the First Class of the author's classification.) In the treatment of debility, in either its simple or associated states, there is a particular class of remedies, viz, tonics, which are mor-e beneficial than any other ; although many articles belonging to other classes, as diffusive stimulants and antispasmodics, may often be prescribed, and with great advantage. Tonics, which have derived their name from their influence in augmenting the tone of con- tractile parts, owe the principal part of their good effects to their elevating, in a gradual manner, depressed vital power, hardly up to, and seldom or never above, the healthy standard ; and to the permanency of their action. By their repetition befor'e the eflects of the pr'cvious dose have subsided, the beneficial influence ultimately is propagated throughout ; and as soon as one or more important functions are restored, the rest participate in the change, and the whole assume li 482 a regular discharge of their offices, owing to the reciprocity of vital influence and function exist- ing throughout tiie economy. Much, indeed, if not more, is also due to the partial absorption into the circulation of their active constituents ; and to their direct action on the vessels, the dif- ferent tissues, and on the blood itself. Although various diffusive stimulants and antispasmodics produce beneficial effects in several states of debility, yet tiiey are generally much less service- able tlian tonics, and in many instances are even injurious, chiefly from the quickness and little permanency of their action, from their proneness to over-excite and over-heat the system, and consequently to indirectly depress its energies. Hence, in order to perpetuate their restorative effects, it becomes requisite to repeat them more frequently ; and thus a habit and desire of excitation is generated, which, if not gratified, is followed by insupportable exhaustion. How- ever, in many states of disease, they are beneficial from the rapidity of their action, and are useful adjuncts to more appropriate means. As all the agents which restore the vital energies vary not only in the grade, the rapidity, and the per- manency of their action, but also in respect of the organ, or the system, or tissue, on which their influence is chiefly exerted, it becomes a most important object in practice to ascertain the part primarily and chiefly affected, and to prescribe them according to our knowledge of their mode of operation, 30. Before adopting measures to remove de- bility, we should ascertain, 1st, The causes in which it has originated ; 2dly, Whether or no it may not be apparent merely, — the consequence of oppressed and not of depressed, vital power ; 3dly, If it proceed or not from irritation of a par- ticular part, abstracting the due energy from others; 4thly, Whether it be sinijjfe or complicated ; and, 5thly, If it be associated with any local mis- chief or chani^e of structure. Having ascertained these important points, the next object is the choice of agents, and appropriation of them to the states of debility presumed to exist. It is chiefly to the neglect of a pathological analysis similar to the above, of the cases which occur in practice, that the abuse of tonics in diseases of debility is chiefly to be attributed. 31. i. Primarij Debility should be treated, conformably with the injunction now given, with strict reference to its cause, to the particular form it has assumed, and the organs or parts chiefly affected. If it have arisen from abstrac- tion of the stimuli necessary to health, these should bo restored ; if from depressing aeents, whether physical or moral, these should be counteracted as far as may be. — (a) When de- bility is manifested more especially in the viscera immediately influenced by the ganglial and vas- culiir systems, it very generally proceeds from one or other of these classes of causes; and, besides their removal or counteraction, recjuircs, accord- ing to the rapidity and the intensity of their operation, the most carefully selected remedies. If the vital depression be rapidly progressive or very great, diffusive stimuli, as camphor, amnu)nia, th'; a!tliers, serpentaria, ainica, &c., will he re- quisite in the first instance, until it is an-estcd, wlien tonics will bn more serviceable ; but, with the first indication of reaction, stimuli of every DEBILITY — Treatment of Primary. kind should be laid aside, lest the consequent excitement should be carried to an inordinate height by their means. The propriety of pre- scribing tonics appropriately to the states and grades of debility, as insisted on by Hoffmann and TiioMANN, cannot be doubted ; but opinions will differ widely as to those which are more suitable to certain conditions. When the vital depression affects the action of the heart more particularly, after momentarily exciting the ol- factory and respiratory nerves, as well as those of the stomach, by means of the volatile and diffusive stimulants, as the aethers, ammonia, and aromatic spirits, &c., the more permanent tonics should be employed. If there appear to be a deficiency of blood in cases of this description, the preparations of iron will be most serviceable, and will be advantageously combined with myrrh, cinchona, gentian, willow-bark, casca- rilla, and the carbonate of potassa. If the or- ganic nervous influence be depressed, without any manifest deficiency of blood, either of these vegetable tonics may be taken, with the fixed alkalies or their carbonates, or with the mineral acids, according as it may be desirable to pro- mote the secretions, or to impart tone to the ex- treme vessels. When we wish to excite the functions of the viscera generally, and particularly when the blood does not undergo the requisite changes as it circulates through the different assimilating and depuratory organs, the chlorates of potassa and soda (the oxymuriates) will be found of much use. I have employed them for several years with much benefit, at the Infirmary for Children, in diseases of debility affecting chiefly these organs, as well as the preparations of iodine, especially the iodides of potassium and of iron. The bitter tonics, combined with aperients, will also prove of great service in similar cases. The marked advantages of associating indivi- dual medicines selected from each of these two classes, — first made known to me by the writings of Hoffmann, and confirmed by repeated observation, — are brought about both by their increasing the action of the secreting and excret- ing viscera when thus conjoined, and by their improving thereby the condition of the circulating fluids, as well as permanently exciting the vital influence. In some cases, the combination of small doses of the extract of nux vomica, or of strychnia, with aloes and myrrh, has proved equally beneficial. It was in pathological states similar to those now under consideration, that phosphorus was prescribed by Conradi and others, that the inhalation of oxygen gas was strenuously advised by Beddoes, and that elec- tricity and galvanism were generally recom- mended by Continental writers. But I per- fectly agree with Grapengeisser, in viewing these as calculated to be injurious where there exists any increase of irritability, either locally or generally, or where any vital organ is con- gested. 32. When debility is the consequence of the injurious impression of some powerful agent, as terrestrial or infectious eflSuvia, it will often be most advantageous to interrupt the succession of morbid phenomena by the exhibition of the most active tonics in large doses, and in conjunction with warm cordialx. All the more intense states of primary debility proceed from impressions DEBILITY — Treatmekt of Consecutive. 483 made by sedative causes upon the ganglial sys- tem, and may be removed by counter-agents directed to the same system, before consecutive changes have advanced far, or the functions of the emunctories and tlie state of the circulat- bowels, not proceeding from inflammatory irrita- tion of their mucous suiface, chloride of hme, or cusparia, caUiniba, quassia, or cascarilla, with the alkahne carbonates, &c. are generally of service. When tlie debility of these organs is attended by ing fluid have been disordered to the extent of torpor of the liver, or accumulations of bile in giving rise to the early phenomena of febrile the gall-bladder and hepatic ducts, deobstruent reaction. Thus, the more stimulating emetics, immediately followed by powerful tonics, or ca- tiiartics preceded by or combined with warm tonics, will often prevent the accession of fevers, when exhibited before the cold stage, or rigour, has commenced ; and, in some cases, although it have commenced, if it have not terminated in excitement. But, in these cases, the tonics and other excitants prescribed should be of such kind, and in such quantity, as will make a power- ful impression on the nervous system of organic life, and as are calculated to restore the suspended secretions. The preparations of cinchona, or the sulphate of quinine, combined with the hot spices, as capsicum, or with camphor, or with ammonia, and prescribed in large doses after an emetic, and followed by a purgative conjoined with the same stimulants, are the most eligible in such cases. The preparations of arsenic, the sulphates of zinc and iron, piperine, the hydrochlorate of ammonia, the chlorates, and va- rious other tonics, are also appropriate in cases of primary debility, especially when assisted by the cardiacs now mentioned ; but they are less efncieut than the foregoing in removing the vital depression primarily induced by the exciting causes of fevers. 33. When asthenia aflects especially the capil- lary vessels, and the crasis of the blood is deficient, or when haemorrhages take place unattended by vascular excitement, the more astringent tonics should be given with sulphuric acid ; and if the loss of tone be excessive, these should be associated with cardiacs and aromatics, and alter- nated with moderate or full doses of the more energetic terebinthinates, and balsams ; morbid secretions being duly evacuated by the preparations of rhubarb. 34. (b) Debility manifested chiefly in the associated organs of digestion can never be per- manently removed unless the secretions and ex- cretions be duly promoted ; and, for this purpose, the combination of tonics and aperients alluded to above is the most efficacious. But this prac- tice should not be resorted to whilst irritation, or active congestion of, or determination of blood to, any of these viscera exists, lest we thereby convert such disorder into inflammatory action. In such circumstances, the more heating tonics, or those which contain most of resinous or oleaginous constituents, are the least appropriate. Where irritation of the digestive mucous surface is com- plicated with debility of these organs, mild tonic infusions may, notwithstanding, be exhibited with benefit, especially those of calumba, gentian, cin- chona, quassia, &:c. ; and may be combined with acids, or with small or moderate doses of the nitrate of potash, or the carbonates of potash or of soda, or with both the nitrate and car- bonate. It is chiefly in cases of this description that diflusive stimuli and heating tonics, so much and justly inveighed against by Brovssais, Otto, and Philips, are injurious. When asthenia is associated with a somewhat lax state of the purgatives should precede the exhibition of tonics and stomachics. If it be associated with worms, purgatives, and afterwards chalybeate tonics, are required. 35. ii. Treatment of Consecutive or Secondary Debility. — A. It will generally be found, when the debility arises _yrom irritation of some organ or secreting surface, that tonics or stimulants, unless such as are mild, and contain but little of an essential oil or other heating constituents, combined with deobstruents and anodynes, will prove either of no service, or injurious, from favouring the supervention of inflammatory action and organic change. Similar effects are also apt to follow the exhibition of tonics, when debility is attended with congestion of some internal viscus, or obstruction of secreting organs : and they will seldom be of any benefit until these affections are in some measure removed ; unless the powers of life are incapable of themselves of restoring the tone of the circulation and the suspended secretions, by developing a healthy reaction. In such cases, local depletions, and remedies calcu- lated to excite secretion and excretion, should precede, or even in some instances accompany, tlie exhibition of gentle tonics, which ought to be prescribed in conjunction with deobstruents, assisted by change of air and a light nutritious and farinaceous diet. 36. jB. The debility which follows over-ex- citement, or which consists of exhaustion of -power, requires means proportionate to its degree and form. The most intense grade of exhaustion occurs in the last stages of adynamic or malignant fevers, and of some other acute diseases ; and often demands not merely permanent excitants, but the more active stimuli, as camphor, arpmonia, serpen- taria, arnica, wine, spirits, fethers, &c., to prevent the rapid extinction of life : whilst other states of exhaustion, especially such as are slower in their accession, or follow local inflammations, spas- modic or hagmorrhagic diseases, and the less severe forms of fever, admit only of the more gentle tonics; and even these, particularly if they be not cautiously prescribed, may reproduce the disease which occasioned the debility, especially if it was inflammatory or htemorrhagic. It is not uncommon to find acute inflammations re- kindled, or chronic inflammations follow the acute ; and relapses of fevers, or visceral en- gorgements, or obstructions, supervene, when the exhaustion has been treated by heating tonics or stimulants, or by a premature use of a too full or stimulating diet. On the other hand, too strict exemption from all restorative means has been not infrequently followed by permanent general or local debility, or by very slow recovery : and it has often favoured the accession of other acute or chronic diseases ; exhaustion predisposing the system to be impressed by their exciting causes. In the more diflicult and doubtful circumstances of this form of debility, it will be, upon the whole, judicious to trust chiefly to wholesome air and suitable diet; and, if tonics or stimulants are I i 2 484 DEBILITY — Treatment of Complicated axd of Local. necessary, iilk.) — Avicemia, Canon. 1. i. fen. 2. doct. 2. cap. 29 Alberti, De Atonia. Halie, n\G.— Hoffmann, De Morbis ex Debilitate Flbra- rum oriundis. Lugd. Bat. 1737. — Biichncr, De Debilitate Part. Corp. Solid, ab imminuta earum Cohesione pendente . Hal. 1749 Lztdiiiig, De nimia Animi Defatigatione, Causa Debilitatis in Morbis. Lips. 1762. ; et De Debil. Corporura Curationem impediente. Lips. 1758 — J'ogel, Defin. Generum Morb. Goet. 8vo. llGi. — Sauvages, Nosologia Methodica, vol. i. p. 699. Amst. 1768. — Cal- dani, Institut. Pathologias, &c. 8vo. Berl. \T!G.— Withers, Observat. on Chronic Wealiness. York, 1777, 8vo. — Lentin, Beytrage, p. 81. {Chalybeatebaths.)—J. Brunonis, Elementa Medicinas. Edin. 1780. ; and his Works, by his Son, 8vo. passim. — Saunders, in Edin. Med. Comment, vol. m.—Nicolai, De Debil. Vera et Spuria. Jense, 1791. IVidemann, Diss. Sistens Vitia Genus Humanum Hodier- num Debilitantia. Jenaj, 1792. — Haase, De Debil, Vera et Spuria. Lips. 1792. — Wedekind, De Debil. Mixt.i. Heidelb. 1797.— Danrin, Zoonomia, or Laws of Organic Life, 8vo. l797. — fVh)tc, Observat. and Experiments on the Willow Bark. Bath, l79S,.—Fieliz, in Richter's Chi- rurg. Biljlioth. b.vi. ^.7\7. {The willow bark.)— Hill, On the Use of Oxygen, or Vital Air, in the Cure of Diseases. Lond. IfiOQ.—Hcinecken, Ideen, &c. p. 76. (The marriage of the old xuith the young. )—Ploucquet, De Rite Formanda Indicatione Antasthenica. Tub. 1799. — Marcard, Be- schreibungvon Pyrraont,b. ii. p. 22. ( The Pypnont waters recommended.) — Horn, Beitrage zur Medicin. Klinik, b. ii. p. 293. (Specifies four grades.) — Thoviann. Annales Wurceb. &c. b. i. p. 43. (The propriety of distinguishing the forms, and appropriating the remedies) — Marcus, Priifung des Brown- Systems, b. i. st. 4. p. 37. (The greater the debility, the more penetrating and volatile e.r- cifanls.) — Schrcycr, in Baldinger's N. Mag. b.'.viii. p. 546. ( Baths of decoction of bark.) — Grapengeisser, Versuche, &c. p. m. — Beddoes, On the Med. Use, &c. of Factitious Airs. Bristol, 1796, 8vo. — Conradi, in ll//fcland'& Journ. der Pract. Hcilk. b. vi. p. 385. — Otto, De Keniediorura Incitantium Abnsu. Franc. 1804. — Wulther, Disquisitio Rationis Morb. ad Statum Corp. Asthenicum. Jenre, 1801. — W. I'ogt, De Pareseos et Methodi Pareticae Dignitate. Viteb. 180.5. — /?)•<•;•(/, Annotazioni, &c. vol. ii. — Graefe, in Horn's Archiv. Sept. 1810, p. 149. (Chalybeate baths.) — Myl/us, Hufeland und Himly, Journ. der Pract. Heilk. Nov, 1809. p. 24. (Decoction of raw cqjffec.)-~Jaeger, Ueber die Natur. u. Behandlung der Krankhaften Schwiiche des Menschlichen Organismus. Stutt. 1807.^ C. Sprengel, Institutiones MedicEE, vol. iii. p. '90. Amst. 1813 P. C. Hartma7m, Theoria Morbi, seu Pathol. Ge- neralis, &c. 8vo. Vind. 1814 Harles, Handbuch der Acrztlichen Klinik, b. i. p. 2.50 Shearman, On Hist. and Treat, of Chronic Debility, &c. 8vo. Lond. \%2\.— l'an Coetscm, MediciiKi- 'rhcorcticjc Conspectus, 8vo. G;md. 1825, p. 81, — L. H. Friidlirmler, rundamcnta Doctrine Pa- lhol<)gic;K>, Svo. Lijis. 1S2S, p. 98. — Boiiseau, art. Asthenic, in Diction. Abrege des Sciences Medicales — J. C. Itoehe, in Diet, (le Med. ct Chir. Prat, b.iii. yi.hQi. — Brachet, Mcinoire sur r.-Vstlu'nio, Svo. Paris, 1829. — Hiifcland, Kncyclopad. Wijrterbuch der Medicin. Wissen. b. i. J). 4.53 Uedtlings, On the Pathological States denomin- ated Astlicni.-i, Deliility, &c. in Amer. .Tourn. of Med. Sciences, vol. ix. p. 315. — (See also the Bibliography and JliJ'trcnccs of the art. Disease, and the art. Dehilitas, in Ploucquct's Medicina Digesta, vol.i.) DEULUTITION, DIFFICULT. — Svn, Dys- pliagia (from Ju?, difficulty, and '^a.yai, I eat or swallow), Deglulitio difftcilis vel iiapedita, Auct. Schweres SchUngen, Ger. Dysphagie, Vr. Dysphagy. Difficulty of Swalloioing. Classit. — 1. Class, Diseases of the Di- gestive Function; 1. Order, Aft'ecling DEGLUTITION, DIFFICULT the Alimentary Canal (Good). Special AND General Pathology ; Symptom- atology (^Author, (5)"c.). 1. Difficult or obstructed deglutition is an oc- casional symptom of several diseases, and a con- stant concomitant of a great variety of organic changes, affecting the fauces, the pliai-ynx, the asophagiis, or parts in their immediate vicinity ; and which are discussed under these heads, par- ticularly in the article on the CEsophagus. After having noticed the only idiopatliicfonn in which dysphagy can strictly be said to occur, I shall arrange those pathological states of which it is an important phenomenon, and with reference to the places in which they are more appropriately de- scribed, and to the principles and means of cure. 1. Primary or Idiopathic Dysphagv. Ner- vous Quinsey, Heberden. Classif. — II. Class, I. Order (Author). 2. Defin. — Difficulty of swallowing, occurring suddenly, and accompanied bij a choking sensation. 3. i. Tiiis form of dysphagy is not infrequently observed. It generally takes place when the pa- tient is apparently in good health ; and chiefly in irritable, nervous, or weak constitutions. It is usu- ally induced by violent gusts of temper, or mental emotions, or by dread of its accession ; and is occa- sionally so severe as to threaten suffocation. When it affects the oesophagus, it gives rise to a sensation resembling that occasioned by the retention of an extraneous body ; and matters attempted to be swallowed are either retained for some time, or rejected. When the pharynx is principally affected, deglutition is generally attended by a sense of choking. It may continue only for a minute or two, or it may be prolonged for seve- ral days or even months, difficulty being present in various degrees upon each attempt at receiv- ing substances into the stomach ; or it may be remittent. It is often accompanied by the re- tention of flatus in the oesophagus, probably by spasm ; the difficulty of deglutition being increased by the flatulent distension, but removed upon the discharge of flatus. It resembles in this the globus hystericus ; but it differs from hysteria in the circumstance of its occurrence in males as well as in females, and independently of any of the other characteristic symptoms of that affection. 4. ii. The Treatment of primary or idio- pathic dysphagy should be directed with the view, 1st, of relieving the existing difficulty; and, 2dly, of preventing its recurrence. — (a) The first object may be attained by swallowing slowly cold or iced fluids ; by cold applications to the neck or throat ; by cathartic, anodyne, and anti- spasmodic cnemata ; and by camphorated lini- ments, or antispasmodic and anodyne plasters placed on the sternum or throat. (6) The re- currence of the affection will be prevented by the internal use of vegetable bitters and tonics, with the alkaline carbonates ; by nai'cotics or antispasmodics combined with ipecacuanha ; and by a free action kept up for some time on the lower bowels, by means of the resinous or other purg- atives conjoined with vegetable bitters, and pro- moted by clysters. The other means, mentioned hereafter (§ 16.) will also prove useful adjuvants. II. Symptomatic and complicated Dysphagy. Classif. — General Pathology; Thera- peutics, &c. 5. Difficult or obstructed deglutition is an occa- ■iTS Pathology, 487 sional or constant attendant upon a variety of func-. tional disorders, and of organic changes. 1st. It is often symptomatic of hysterical, hypochondriacal, flatulent, and asthmatic affections. 2d. It is con- stantly attendant upon tetanus and rabidity. 3d. It is sometimes produced by organic change seated in parts about the base of the brain or cranium, the medulla oblongata, or upper part of the spinal chord. In all these symptomatic states, the parts immediately concerned in the function of degluti- tion are seldom, and not necessarily, affected organ- ically : but in the following there always exists either inflammatory action, or its consequences, or some structural change, in the parts by which food is conveyed into the stomach, or in their imme- diate vicinity. The preceding may be called symptomatic forms of dysphagy ; those which are to follow, complicated states of this affection. Un- der this latter may be arranged, 1st, Dysphagy from congenital malformations ; 2dly, From in- flammation, or structural lesions of the mouth tongue, fauces, pharynx, or tonsils ; 3dly, From diseases of the epiglottis or larynx ; 4thly, I'lom inflammations or structural lesions of the oeso- phagus, or of the cardiac orifice of the stomach ; 5thly, From tumours pressing upon the pharynx, or on the oesophagus. On each of these I shall add but few remarks. 6. i. Symptomatic or Sympathetic Dys- phagy.— A. Of spasmodic or fatulent diseases. Difficulty of swallowing occasioned by hysteria, hypochondriasis, spasmodic asthma, dyspepsia, and even rabidity, is in a great measure to be ascribed to a flatulent distension of a por- tion of the oesophagus, with spasmodic con- striction of other parts of this tube, and disposition to convulsive or spasmodic action of the muscles of the pharynx, either upon certain occasions of their being excited by the mind, as in hydro- phobia, or upon attempts at performing their usual functions. In many instances, particu- larly those connected with asthma, indigestion, or flatulence of the digestive canal, the difficulty is attributable rather to the ascent of flatus in the CKsophagus, preventing the transmission of food into the stomach, than to spasmodic action of the muscular parts concerned in the process. In these cases, the patient feels much pain, with a sense of distension or pressure under the sternum, and in the course of the oesophagus after swal- lowing, 7. B. Dysphagy may be occasioned by struc- tural lesion about the base of the brain or cervical portion of the spinal chord, or about the base of the cranium. In such cases the paralysis may be more or less complete ; and it may be limited to the muscles of the pharynx and upper part of the oesophagus (Bonet, Portal, Baldinger, and myself), or it may have ex- tended to them from other parts. Numerous cases illustrating these positions have been re- corded. The participation of the muscles of deglutition in either general or partial paralysis is very commonly observed in apoplexy, &c. ; and the occurrence of this form of dysphagy, in- dependently of organic change, or rather from congestion about the base of the brain, is shown by its occasional accession in the advanced stages of fevers. Paralysis of the muscles con- cerned in this function may also be produced by wounds of the nerves of the face (Palletti), by I i 4 488 DEGLUTITION, DIFFICULT — Diagnosis. lightning (Patehson), and by severe cold (Bleu land). It is, however, most frequently caused by the slow developeraent of tumours, or cysts, or other structural changes about the base of the cranium, wliereby either the nerves supplying these muscles are compressed at their origin or in their course, or a portion of the brain or of the upper part of the spinal chord is injured. 8. ii. CoirLicATED Dysphagy, or difficult deglutition from structural ciiange affecting the parts immediately concerned in this function, comprises a great variety of lesions. I shall merely enumerate them witii reference to their seat ; their nature, morbid relations, and treat- ment, being fully discussed under more appropriate heads. 9. A. Diispliagyfrom con genital malformation. — Extreme smallness, or enlargement of the tongue ; the termination of the pharynx, or of the oeso- phagus, in a cul-de-sac, or obliteration of the oesophagus ; the division of this part into two canals, and its communication with the trachea ; are the chief malformations which interrupt de- glutition ; and are of very rare occurrence in otherwise well-formed infants. Cases, however, have been recorded by Blaes, Van Cuych, Mi- chel, BiLLARD, Martin, A. Cooper, and An- dral. In these, death, necessarily resulting from inanition, took place in from three to nine days. A slight interruption to deglutition very frequently arises from congenital fissures of the soft and hard palates. 10. B, From diseases ofihe mouth and throat, — (a) Inflammation or chronic enlargement of the tongue; ranula; sublingual calculus (Guentiier) ; and aphtha3, ulceration, tumours, and excres- cences about the base of the organ (Reidiin, Van Swieten, Tode, and Inglis) ; are not infre- quent causes of dysphagy. Cases of chronic en- largement of the tongue, impeding deglutition, unconnected with malignant disease, and con- tinuing for many years, are recorded by several writers. I have seen an instance of this kind, that had existed from infancy to nearly middle age. These and other affections, with the treat- ment appropriate to them, are particularly no- ticed in the article upon the Diseases of, and the Indications furnished by, the Tongue. — (6) Tlie fauces and tonsils not uncommonly occasion dys- phagy. Inflammation, suppuration, ulceration, or destruction of thesoft;;u/n/e, or of theiivula; great relaxation of the latter part ; inflammation, abs- cess, chronic enlargement, and ulceration, of the tonsils ; fungous and other tumours and polypi of the maxillary sinus, or posterior nares ; various tumours or excrescences attached to the palate or tonsils (Schmidi-, Tiiilenius, &c.); and the severe effects of mercury, or the sudden arrest of salivation ; are generally attended by more or less of dysphagy. — (c) VVhen the pharynx is iha seat of inflammation or of its consequences, or of the lesions now enumerated, or of malignant disease (Klrgaradec, and myself), deglutition is commonly much more imi)eded than when only the fauces are aflected ; and in some in- stances it is extremely dilficult or nearly impos- sible. In such cases, the e])iglottis and larynx are more or less irritated, and, by the conse- (|uenl disorder of the respiiatory actions, the dys- piiagy is still further increased. Foreign, and particularly pointed or sharp, bodies lodged in I the pharynx, are also sometimes causes of dys- phagy. 11. C. Dysphagy from disease of the epiglottis and larynx. — (a) Inflammation, ulceration, and entire destruction of the epiglottis, or indur- ation, incurvation, and the removal of it by wounds, will occasion difficult deglutition, as in the cases recorded by Maynwaring, Schurig, Bonet, Desgranges, Tonanni, and Larrey. — (h) Also inflammation and ulceration of the larynx, ossification of its ligaments, and dis- placement of the OS hyoides, are generally attended by dysphagy. The possibility of the occurrence of this last cause, although observed by Val- salva, and JiIollinelli, has been doubted ; but the instance of it noticed by Sir C. Bell (6'((/g'. Ohserv. p. 160.), and the case wherein it was caused by swallowing a large hard substance, recorded by Dr. RIugna {Annali Univers. di Med. Nov. 1828.), put the matter at rest. Frac- ture of this bone by external violence has pro- duced not only an impossibility of deglutition, but even more serious consequences, as shown in the cases published by Dr. Marcinkowski and M. Lalesque (Journ. Ilebdom. Sjc.). — (See La- rynx — Diseases of.) 12. D. Diseases of the oesophagus, and cardiac orlfce of the stomach, will impede or altogether ob- struct deglutition. Inflammations and their con- sequences, as softening and ulceration, induration, thickening, stricture, and purulent collections between the coats of these parts ; also partial dilatations, sacs and diverticula, or even large pouches, either with or without thickening and stricture of the part of the oesopiiagus immediately below the dilatation (Blasius, Haller, Meckel, ftloNRO, Ludlow, C. Bell, Odier); polypous or fungous excrescences or tumours of various kinds in some portion of this canal, or in the cardiac orifice of the stomach ; or scrofulous, callous, cartilaginous, osseous, carcinomatous, or scirrhous degeneration of these parts; or merely enlargement or ulceration of their mucous glands; and spasm, rupture, or perforation of the oeso- phagus, or the lodgment of foreign bodies in it ; are severally causes of dysphagy ; and are fully described in the articles on the Pathological Ana- tomy of the Digestive Canal ; and on the Dis- eases of the Oesophagus, as well as in those of the Stomach. 13. E. Tumours pressing upon the pharynx, or npon the 'rsophagus, — as bronchocele, or other tumours or abscesses near the throat and in tlje neck ; tumefaction of the lymphatic and secreting glands below the jaw, and at the top of the sternum ; aneurism of the subclavian or carotid arteries, or of the aorta before it passes into the abdomen ; enlarged bronchial glands, tumours of various kinds, and abscesses in the posterior mediastinum ; exostoses or other diseases of the cervical vertebra;, and purulent collections be- tween them and the oesophagus (Carmichael, myself, and others) ; also abscesses formed be- tween, or involving, the trachea and oesophagus (Hav and myself); dropsy of the pericardium (Bang); and enlargement of the liver; have severally been observed to occasion dysphagy. 14. iii. The Diagnosis of dysphagy requires a few observations merely. — (a) In idiopathic, as well as in the sympathetic dysphagy, the difficulty takes place suddenly, disappears as suddenly, re- DEGLUTITION, DIFFICULT — Treatment. 489 mits or intermits, and is generally attended either by convulsive efforts, by choking sensations, or by flatulence, dyspepsy, or various nervous symptoms, particularly when it is connected with hysteria, hypochondriasis, &c. — {!>) In cases of atonic or parali)tic dysphagy, solids are more easily swallowed than liquids ; but the process is often very slow, and the difficulty great. — (c) When it proceeds from disease of {he fauces, the cause is obvious to the sight ; and frequently also when it is induced by the state of the i)harytn\ In this latter case, as well as in dysphagy from lesions of the epiglottis and lury)ix, or from tumours or fun- gous excrescences develojied in, or pressing upon, the pharynx, or from inflammatory diseases of it, or of the upper part of the oesophagus, substances are often forcibly ejected into or through the nostrils, upon attempts at deglutition, owing to the spasmodic action of the muscles of the pharynx. — (rf) When dysphagy is caused by a diminution of the canal of the asophogus, either from thick- ening of its parietes, or from tumours pressing upon it, &c., difficulty of swallowing solids is first felt, and this at last is followed by a dif- ficulty of swallowing fluids ; the interruption to this function proceeding gradually and slowly. When the obstruction is seated low in this tube, or about the cardiac orifice of the stomach, pain is usually felt under the sternum after swallowing : and the matters are afterwards regurgitated into the mouth, owing either to a sudden reaction of the parietes of the canal, or more commonly to their inverted peristaltic action. (See art. Qiso- ruAGus — Diseases ii/.) 15. iv. Ti'.EATMENT. — It must bc cvident that the treatment of sympathetic and complicated dysphagy should be conducted strictly according to the pathological state on which it depends, as far as that may be ascertained. Hence a tolerable knowledge of the means applicable to it, in every circumstance in which it presents itself, is to be acquired only by a reference to the articles where the various lesions occasioning it are described, in respect of their nature and cure. 16. A. Siiinpathetic diisphagy — (a) of spas- modic or fat u lent disorders, requires very nearly the same treatment as already recominended in the idiopathic form of the disease. If it accom- pany hybteria, swallowing, slowly, cold or iced fluids, and cold applications to the neck, will soon afford relief; but it will afterwards be necessary to have recourse to tonics and cooling aperients, witii other means suited to the peculiarities of the case. The instances in which Tode and Wicn- jiANN found quassia so beneficial, were probably of this kind, or the idiopathic form already no- ticed.— (/)) When dysphagy is connected with fiulident dyspliugy, or with asthma, or palpitations of the heart, relief will generally be_ obtained from anodynes or antispasmodics combined with refrigerants, or from vegetable tonics with alkaline carbonates and aperients. Blisters, or rube- drocianic acid may be substituted with advantage. Besides these, the cupri ammoiiio-sulphas, the pre- parations of camphor, -with those of henbane or conium, may also be exhibited. In every form of dysphagia not depending upon organic change, purgatives, and cathartic and antispasmodic ene- mata, will be productive of more or less benefit. 17. (c) Dysphagy, from jniralysis or atony of the mu>cles of deglutition, should be treated according to the principles stated in the article Palsy. If it be occasioned by congestion about the base of the brain or spinal chord, general or local bleedings, active cathartics, and external derivatives, must be einployed. Congestion having been removed, large doses of camphor, as advised by Hoffmann ; stimulating linctuses and gargles ; sialagogues ; electricity and galvanism ; exciting liniments or blisters to the neck or throat, as suggested by Loeffi.fh; as well as moxas and issues; may be severally employed. Dr, Bakton recommends the zanthoryUim in cases of this de- scription. Thunberg and Baldinger advise the cajuput oil to be rubbed on the neck ; Gahdanne, sitiapisms to be applied on the same part; and Franck, the actual caittery. 18. B. Dysphagy from organic change of the parts directly concerned in the function of deglu- tition requires means the most diversified, ac- cording to the nature of the lesions to which it is attributable. — (a) When it is congenital, but little can be done excepting in the slighter forms occasioned by cleft palate, or by adhesion of parts within the mouth. In these, the expert surgeon may afford complete relief. — (/>) Difficult deglu- tition from diseases of the tongue, fauces, tonsils, or larynx, is of itself of minor importance ; but as respects the primary lesion, of the utmost mo- ment, requiring the most energetic measures pointed out in their treatment. (See these arti- cles.)— (c) Dysphagy from inf animations, or their usual consequences, whether seated in the pharynx, the asophagus, or the cardiac orifice of the stomach, should be treatepovta;, I understand), Auct. var. Paracope, Swediaur. Irvereden, Aherwilz, Germ. Delire, Fr. De- lirio, Ital. Ci.AssiF. — Pathology ; Syinptomatnlogy, 1. Delirium has been defined : — Disorder of the inlelleclual ]>oicers, with or without derangement of the moral sentiments. But this delinition is too extended and vague, and embraces the whole circle of mental diseases. J. Franck, and some DELIRIUM other palliologists, have restricted it by adding — this disorder assuming an acute form. Several writers, retaining the precedingextended definition, have divided delirium into the acute, and the chronic; the former consisting of various morbid slates of the brain, attended by mental dis- turbance and fever — the latter of mental alien- ation, unattended by fever or active bodily disorder. Chronic delirium, therefore comprises all those states of disordered mental manifestation treated of in the article Insanity. Acute, or febrile deli- rium refers to those morbid affections of mind supervening in the course of febrile, inflammatory, and some chronic diseases, and which have been denominated symptomatic, or si/mpathetic, deli- rium ; and those which are produced by acute diseases, or injuries of the brain or its membranes, and by intoxicating or narcotic substances, and which have been termed idiopathic delirium by some writers. 7'he common acceptation of the word delirium, and that in which it has been used by the best authors, accords with the acute form as occurring in the manner now stated; and in tliis light 1 shall also view it. But it is more doubtful in how far it is ever an idiopathic af- fection. Indeed, in many of the diseases in which it is admitted by all to be a symptomatic or sym- pathetic disorder, its more immediate dependence upon a morbid state of vital endowment and cir- culation in the encephalon is as manifest as in some of those which have been viewed as idio- pathic. The distinction, therefore, cannot be maintained, especially as it appears to have been founded upon a mistaken idea, viz. upon the sup- posed existence, in the reputedly idiopathic form, of inflammatory irritation or action of the brain or its membranes ; which action does not obtain in the other. That delirium is most frequently occasioned by such a pathological state, cannot be doubted ; but it is equally certain that it some- times also proceeds from a different condition ; and that either of them — either inflammatory action, or simple disturbance of the cerebral functions without inflammation — may exist in each of the divisions thus distinguished, — in the idiopathic as well as in the sympathetic form. If the dis- tinction in question be still retained, it would be more accordant with the generally admitted ac- ceptation of tlie word idiopathic, to consider, as J. Frank has done, all the manifestations of delirium as symptomatic, excepting when it is occasioned by intoxicating and narcotic substances : but, when it proceeds from inflammation of the brain or its membranes, whether primarily or con- secutively induced, to view it merely as a symptom, but by no means a constant, although a very general symptom, of this state of disease. 2. Delirium, as well as other cerebral af- fections, has been too generally imputed to inflam- matory action ; and the state of the ganglial or organic nervous power, which evidently influences both the functions and the circulation of the brain, has been entirely overlooked, particularly as respects this affection. There can be no doubt of the difficulty of appreciating correctly the na- ture or extent of the disorder which this part of the system experiences. But this circumstance surely does not preclude us from tracing ulti- mate phenomena to their true origin, instead of stopping at intermediate efiects ; nor from in- ferring, from the nature of these phenomena, and — Phenomena. 491 of the causes which increase or remove them — from ihe juvaniia and tadantia — certain general conclusions respecting the condition of that power whence morbid conditions primarily emanate ; each successive eflect being the cause of further change, until organic lesion, and ultimately death, result. Believing, therefore, on physiological grounds, that delirium is often the consequence of changes in the state of organic nervous power — of the functions of that part of the organic or ganglial system supplying the encephalic organs — influencing in some cases, one or more of the mental manifestations, without any appreciable change of vascular action or of structure ; in others, both function and circulation ; and in many, not only function and circulation, but organization also ; and that our knowledge of these changes, of their signs, and of their various related circum- stances, are too imperfect to enable us to come to accurate conclusions ; but that we should pro- ceed nevertheless with the aid of the dawn of knowledge now opening upon us ; I shall briefly consider, first, the phenomena and diagnosis of delirium — afterwards its pathology and treatment conformably to the doctrine now alluded to. 3. i. Phenomena. — A. The invasion of delirium is generally preceded by sleeplessness, headach, vertigo, heaviness of the head, noises in the ears, change of voice, absence of mind, forgetfulness of pain, by an air of surprise, and acuteness of the senses; the eyes are brilliant and intolerant of light ; the head is often hot, the face flushed, and the circulation of the brain more or less increased. In some cases, however, these symptoms are either altogether absent, or inappreciable; and in others the countenance is collapsed, pale, and cool, and the eyes sunk. To the foregoing phenomena suc- ceed those which constitute delirium, and which vary remarkably in character and intensity. lu many cases, particularly when there are few or no signs of augmented determination of blood to the head, a simple agitation or merely absence of the mind, or reverie, or wandering from the ob- jects before it, or a slight incoherence in the ideas, is all that is observed;- but from this slight state of affection, we meet with every grade and form of mental disorder — sometimes with fright, visions or illusions, often connected with present objects ; occasionally with hallucinations, or the reproduction, in confused or unconnected forms, of previous impressions ; — in certain cases, with the most furious mental and physical agitation ; in others, with the greatest depression and the most sombre taciturnity ; — in one case, with tears and signs of great mental distress: in another, with a lively but incongruous current of ideas, or even with laughter and gaiety. 4. B. Delirium is frequently present at first only during the intermediate states between sleeping and waking, which patients in acute diseases ex- perience ; the mind still perceiving objects, but imperfectly. In this state tlie patient appears to dream aloud ; and when fully awakened, returns rational answers to questions put to him ; but he soon lapses into a state of dreamy incoherence, or into that of more complete delirium. This con- dition nearly approaches that of coma vigil, into which it often passes. In some instances, this state is characterised by a loss of recollection of all objects observed, and of all ideas with which the mind had been stored during the greaterperiod 492 DELIRIUM— Diagnosis. of life, and by the recovery of the memory of I paroxysm of intermittent delirium varies from languages and of ideas acquired at a very early one to several hours; but the continued form, age, and long forgotten. Thus old persons, when particularly when occasioned by disease within delirious, although their minds are blanks as the head, may last several days, or even many respects every thing present, or which have be- weeks. Sometimes, as in the more severe ce come known to them from youth or manhood, will talk of matters which had interested them previously to such periods, and sometimes in a language which they liad then spoken, but of which objects and language they had no recollection long before their delirium, nor retained any after their recovery. Here, again, the remarkable si- milarity between several manifestations of de- lirium and dreams is strongly evinced ; the objects and ideas about which the unconscious mind is engaged in the states of both delirium and 'dreaming being frequently those which iiad made a vivid impression in youth, which had become erased by the cares and employments of life, but which are recalled during certain conditions of the brain. The production of these in incongruous forms, and the giving utterance to the morbid conceptions formed of them, constitute hallu- cinations ; whilst, owing to the nearly inconscious state of the mind, the imperfect and erroneous impressions made by surrounding objects on the senses of the patient, give rise to inconclusive and unconnected conceptions, in consequence of the morbid condition of the brain, and occasion the illusions characterising the delirious afl'ection. 5. In addition to disorder of the mental powers, the organs of locomotion are remarkably affected. In the low or quiet delirium, and in the less dangerous states, in which the brain is only functionally deranged, the muscles are either somewhat agitated, or very much enfeebled, and the voice is very weak or nearly lost. In more severe cases, the voice and the muscular force are greatly increased ; the patient, however, sinking into a state of profound collapse after a few violent efforts. In the most dangerous form of delirium, particularly when it proceeds from organic disease of the brain or its mem- branes, it is attended, but more frequently followed, by general convulsions, by spastic con- tractions of one or more of the voluntary muscles, by entire loss of consciousness and sensibility, or by paralysis. 6. C. Delirium, as M. Georget has remarked, may be continued or intermittent, even in the continued affections of the brain. When it is intermittent, it usually returns with the ex- acerbation of fever that takes place in the evening and night. When the patient recovers his rea- son, he is generally weak and exliausted ; his senses are readily and painfully impressed by their respective stimuli ; and he complains of tiiirst, and pains of the head and limbs. If liie delirium has been slight, and consciousness has not been entirely abolished, he retiiins more or Jess recollection of what had passed during its continuance. But when it has been intense, or of some duration, he has no knowledge of wiiat has occurred. The epidemic appearance of de- lirium mentioned by Quet.mai.z (De Kpidern. Mentis Alienatione. Lips. 1752.) and xIIichaei.is (Med. Pnict. Biblioih. b. i. St. 1.) is to be imputed to the prevalence of those diseases in which delirium is apt to supervene, and espe- cially in that form on which it is most fre- quently an attendant, The duration of the rebral cases, it alternates with profound coma. When it terminates fatally, it generally passes into coma; but in some instances the patient recovers his reason for a few iiours before dis- solution. 7. ii. Diagnosis. — It is of the utmost im- portance that delirium should not be mistaken for insanitii, and especially that the delirious patient should not be removed to an asylum for the insane. On two occasions I have seen such a mistake made, and about to be acted upon, when my opinion was requested. But these cases recovered perfectly: to one of them — a professional man — the removal to an asylum, or the supposition even of being insane, might have been ruinous. 'J'here can be no doubt that delirium often passes into insanity, especially when it has been caused by inflammatory states of the brain, and by fevers with determination to the part ; or when it occurs in persons here- ditarily predisposed to insanity ; but until it has assumed tlie features of that form of mental dis- order, it certainly in no respect should be viewed and treated as such. 8. The causes and circumstances originating delirium are often of themselves sufficient to show its difference from insanity. Its occur- rence in the advanced stages of acute diseases, or of chronic maladies when the powers of life have become exhausted and febrile action of an acute kind has supervened, is especially cha- racteristic of delirium. The insane patient has all his senses, as well as his digestive, assimila- tive, and locomotive powers, but little or not at all impaired. His mental faculties and intelli- gence are also but paitially deranged. M. Georget has very justly remarked that tlie mental disorder of the insane is often confined to a single faculty ; and even in the most extended, or maniacal affections, the faculties are rather perverted, or insulated, and without the bond of association, rather than extinguished. The most maniacally insane person wills and reasons, and is not always absurd in his actions. But in the delirious, all the cerebral functions are severely affected. His sensations are imperfect and in- correct, his ideas unconnected, his passions disordered, his voluntary motions irregular, feeble, and defective ; his intelligence and recollection nearly abolished ; and he is impassive to all that surrounds liim. Whilst the delirious \>ailent presents many of the physical signs of exhausted vital energy, or of the gravest state of disease, the insane has all the appearances of utiimpaired health, particularly in the early stages of insanit)', and before consecutive organic change has taken ))lace. In the former, the sensations and percep- tions are more or less abolished ; in the latter, they are but little or not at all impaired, — the judgment only, or conviction of the under- standing respecting them, being erroneous, 'i'lie false conviction of the insane is too strong to be removed by the evidence of the senses : the sensations and perce))lions of the delirious are always too weak, even when consciousness is partially present, to become the basis of sound DELIRIUM — ITS Pathoi.ogv, 493 conclusions. Hence the Insane person cannot be i organic nerves supplying the vessels of the convinced by objects seen, heard, and understood by him, in opposition to his perverted judgment respecting tbeni ; and the dehrious patient per- ceives objects so faintly, if lie perceives them at all, as to be unable to distinguish between such as are in any respect similar, or to recognise brain. 11. B. Delirium characterised hy depressed or exiiausted vital power, and ntorbidlii excited vas- cular action, is by far the most common form ; and is very frequently observed in the advanced progress of continued, remittent, intermittent, one person from another. Besides the circum- i malignant, and exanthematous fevers; of acute stance, also, of delirium being generally an acute, and insanity a chronic affection, it may be re- marked, that in the former, when occurring from inflammatory states of the encephalon, or from fevers complicated with such states, the return to the healthy function is often so slow as to occa- sion fears of the supervention of the latter. In some instances, however, the restoration from febrile delirium has been quick, and the mental manifestations have become even more active than previously to the seizure. 9. iii. PATiioi.ocy. — It is of the utmost prac- tical importance to distinguish the different ibrms of delirium, particularly in respect of the grade of va>cular excitement and vital power, and the existence or non-existence of inflammatory ac- tion, for, without such a step is previously taken, no rational method of cure can be adopted. I shall therefore attempt to make this distinc- tion. 10. A. Delirium attended by exhausted nervous and vital influence is sometimes occasioned by ex- cessive hasmorrhages or venisection, by inanition, prolonged lactation, and profuse seminal or other discharges, by old age, hysteria, fear, &c. It also occasionally supervenes from exhaustion in the last stages of some acute and chronic diseases, or from whatever directly or indirectly depresses the powers of life, as shown in the article Debility. In many such cases, how- ever, although the vital energies are sunk, yet the brain is more or less excited relatively to the other parts of the body ; and in some, the state of deliiium is connected with an impure or contaminated condition of the circulating fluids, particularly when it occurs in the advanced course of malignant diseases. The delirium, also, which is caused by excessive pain, by capital operations, by the suppression of the ap- pearances of pain or suffering, or by the appre- hension of the consequences of operations, and which ]\I. DupuvTREx has very appropriately denominated nervous delirium, chiefly falls under this form of the affection ; and to it may be added many of the instances of delirium caused by excessive irritation in remote but related oigans or parts, as consumption, ulcerations of the bowels, worms, &c. Allhongh it is often obvious tliat a relatively increased determination of blood to the head exists in some cases of this form of delirium, yet it may be inferred, with equal justice, that a deficient supply of blood to the brain obtains in others. This conclusion may be legitimately drawn from the pale, cool, shrunk features, sunk eyes, the weak and small pulsation of the carotids, the effects of various kinds of treatment, and the absence of increased or even common vascularity of the brain upon ex- amination after death, in some cases of this form of delirium. This opinion has been supported by JM. GroROET and several other pathologists, without having been imputed by them to its obvious source, viz. exhausted power of the nflammations ; and of several chronic diseases, particularly when they pass into the acute form. It may also be occasioned by any of the nar- cotic or acro-narcotic poisons, or from their ex- hibition in enemata ; and in some temperaments and constitutions, by a small quantity of those in common use, — as by opium, stramonium, bella- donna, &:c. I have more than once seen it pro- duced even by the preparations of hop and hyoscyamus taken in moderate doses. Its oc- currence from the medicinal exhibition of various narcotic and poisonous substances is noticed by various writers ; — from cicuta, by Wepfer and Smetius (Miscell. p. 569.) ; from belladonna, by Pei.aiigus and Valentini (De Maniacis ah Usu Bellad. (^c.) ; and even by the superacetate of lead, by Stole (IJui. Merf. par. vii. p. 317.) and Knight (Land. Med. and Phifs. Journ. vol. iv. p. 286.). — DiosconiDEs (Mat. Med. 1. iv. cap. 63.), Westi'hal (^Pathol. Dccmoniaca, p. 33 — 36.), and Horn (Arcliiv. Nov. 1811, p. 540.), have noticed the occurrence of delirium from hyoscya- mus exhibited in clysters. Poisoning by various substances, as the Lolium temulentum, and some of the narcotics just mentioned, generally occa- sions delirium. It may also arise from indigest- ible substances taken into the stomach. In all these cases, in addition to the states of the sys- tem connected with the appeaiance of this affection, there is generally increased excite- ment of the circulation in the brain, relatively to that in the rest of the body ; and not infre- quently an impure or altered state of the cir- culating fluid, 'i'he delirium occasioned by the protracted use, and the sudden disuse, of narcotics or spirituous liquors, by erysipelas, and retro- cedent exanthemata, is of "this kind, between which and delirium tremens there is often a close resemblance. 12. C. Delirium occasioned hy inflammatory action of the brain or its membranes, when the inflammation takes place primarily, is seldom attended by very manifest exhaustion of vital power, at least to the extent of the preceding forms. When, however, the inflammatory action is very general throughout the brain or its mem- branes, or when it supervenes on continued fevers or erysipelas, and is attended with serous eflusion, vital depression is more apparent, and its termination in, or alternation with, coma, more common. This state of delirium, particu- larly when it proceeds from concussion or ex- ternal injuries, is often plirenitic or maniacal — the Delirium ferox of authors — as respects the exaltation of muscular force. It is occasioned by all the causes staled to produce inflammation of the brain, particularly suppression of critical or accustomed evacuations, eruptions, or discharges ; anger; the exciting passions ; metastasis of specific inflammations ; the ingestion of spirituous li(iuors, &c. Whilst the protracted use of intoxicating beverages, &c. occasions delirium tremens, unac- customed intoxication sometimea produces the 494 delirium now being noticed, by inflaming the brain. This form of the aftection is often com- plicated with convulsions, contractions of the limbs, paralysis, &c., particularly when the sub- stance of the brain is organically changed ; and is, when thus attended, very much more dangerous. (See Brain — Injiammations of, § 164.) 13. iv. Lesions observed in fatal Cases. — In the /est form of this affection, scarcely any, or no evident change, is found in the brain or its membranes, beyond either a somewhat increased or diminished vascularity, occasionally with a slight increase of the consistence of the cerebral substance, or of the fluid in the ventricles. In many cases, all the parts within the cranium are apparently sound. In the second variety, and wherever delirium is unattended by marked dis- order of the muscular actions — when it is without extreme prostration, or convulsions, or paralysis — the chief changes are, increase of the consistence of the brain, and of the fluid contained in the ventricles, injection of the pia mater, sometimes with infiltration of serosity, and occasionally a somewhat deeper shade of colour in parts or the whole of the cerebral substance. M. Georget remarks that pathological investi- gations do not confirm the opinions of[ some authors, who impute the cause of delirium and convulsions to inflammation of the arachnoid ; and that even epileptics and the insane seldom present the appearances usually caused by arachnitis. They have probably confounded in- flammation of the membranes and periphery of the brain with the usual manifestations of de- lirium ; and thus imputed the changes observed in the former to the latter. In the third form of this affection, or when it is attended by the lesions of muscular action noticed above, the appear- ances observed are more completely those usually found after inflammation. Indeed, delirium fre- quently occurs, but not uniformly, or even gene- rally, in nearly all the inflammatory diseases of the brain or of its membranes, and occa- sionally in the advanced stages of the organic changes limited to parts of this organ. (See art. Brain.) 14. v. Prognosis. — Tiie great diversity of the results furnished by post mortem investigations will show the diflSculty of appreciating aright the conditions of the brain in delirium, and of coming to a correct conclusion as to its issue. When it is sympathetic of disease of remote organs, the worst opinion should be formed of the result. Delirium occurring in the advanced stages of diseases of the lungs, stomach, or bowels, is a most dangerous symptom ; and when it super- venes in slow and consumptive maladies, it rarely remits, and death is not far distant. It seldom appears as a sympathetic affection, until the powers of life are greatly depressed, and the pulse is very much increased in frequency and dimi- nished in tone. Dr. Gii.riERT (Krankheiten der Franzos. Arm, p. 48.) observes, tliat delirium prevailed in the fevers which accompanied tlie French wars in Germany, in proportion to the frcr|uency and weakness of the pulse, — a fact fully supporting the inference at which I had long ago arrived. On the other hand, when it appears in an intermittent or slight form, or from the operation of the less intense causes upon de- licate and nervous constitutions, and without DELIRIUM — Prognosis — Treatment. other grave symptoms, although evincing the severity of affection, it is not, in itself, a danger- ous occurrence. AVhen it follows capital oper- ations, or severe injuries of any kind, it very often indicates the developement of inflammatory action of the brain of a most dangerous or rapidly fatal form. Delirium is most frequent in females, in the nervous temperament, and in young per- sons above the age of eight or ten years ; but it is, in such cases, a less unfavourable symptom. It is seldom observed previously to the fourth or fifth year, — convulsions usurping its place at an earlier age : but, when it occurs thus early in life, it is a sign of great febrile excitement, with either determination to, or acute inflammation of, the membranes or periphery of the brain. If it be continued, or alternate with coma ; or if it be complicated, with extreme prostration of muscular power, or with convulsions, spastic contractions, paralysis ; the existence of inflammation of the brain, to the extent of producing organic change and extreme danger, may be inferred. Pererius, Piso, and many other writers, have contended that furious and sad or fretful delirium is more unfavourable than that which is tranquil or lively ; and the observation seems to be nearly correct. The prognosis of sympathetic delirium should, however, not be founded so much upon its form, and the other symptoms referrible to the cerebro-spinal system, as upon the nature of the primary malady ; for it is not the delirium which is in itself dan- gerous, but the disease upon which it supervenes ; the circumstance of its occurrence evincing the very sinking condition of vital power. M. Georget truly states, that the sudden cessation of delirium and agitation, attended by want of recollection of the previous state, by great debility, irregularity of the action of the heart, and loss of temperature in the extremities, nose, and ears, is a most un- favourable omen ; and often accompanies the termination, by gangrene, of inflammation of some important organ, always indicating approaching dissolution. When delirium accompanies fevers, particularly those with determination of blood to the encephalon, or inflammations of the brain or of its membranes, it often yields favourably to epistaxis, copious alvine discharges, and other critical evacuations. (See art. Crises.) 15. vi. Treatment. — When the inexperienced practitioner, in his endeavours to obtain inform- ation as to the treatment of this affection, finds remedies of the most opposite kind very con- fidently recommended by writers, — venssection by one, bark and stimulants by another, emetics or purgatives by a third, and digitalis, antimo- nials, &c. by a fourth^ — he is at a loss how to act ; and arrives at the conclusion, that it one be right, the others must necessarily be wrong. The fact, however, is, that all of them are partly right, but also partly wrong. The circumstance of this affection having been hitherto viewed without reference to the very difl'erent states or grades of vital energy with which it is often asso- ciated, or to the condition of circulation in the brain, and its division into idiopathic and symp- tomatic,— either of these divisions presenting the different forms I have endeavoured to dis- tinguish, — has led to, and perpetuated, the empirical manner in which it has been treated. It is necessary to ascertain not only the origin and morbid relations of tiiis affection, but the DELIRIUM phenomena attendant upon It at the time of in- vestigation ; more especially the condition of the secretions and excretions, the temperature of the head, the state of the pulse in tiie carotids and temples, the appearance of the countenance, and the state of muscular power and motion. These will at once indicate to the observing practitioner the existing patliological condition causing the affection, — will enable him to assign it to one or other of the forms above distinguished, and thereby to prescribe for it appropriate remedies. 16. A. The frst form of this affection (§ 10.) will be most benefited by quietude, gentle re- storatives, and nourisiiment ; by a moderately cool, pure, and frequently renewed air; by the tepid afl'usion on, or cooling applications to, the head, if there be any increase of its temperature; by warm pediluvia ; by camphor conjoined with refri- gerants and cardiacs, or with sedatives ; and, if the vital depression be very great, the head cool, and the carotids pulsating weakly, by the prepar- ations of quinine or bark, of assafcetida, valerian, rausk, camphor in large doses, with those of am- monia, opium, &c., exhibited by the mouth, and in clysters : or by small quantities of mulled wine or negus. In the more purely nervous deli- rium, or when it occurs from operations, anxiety, fear, and injuries of parts at a distance from tiie head, opium, given by the mouth, or in enemala, as recommended by W. Dupuvtren, will be most beneficial. If it be attended by mucli agitation, narcotics — as opium or hyoscyamus — in full doses, either alone, or with camphor, assafcetida, soda, or ammonia, &c. ; the acetate or hydro- chlorate of morpliia, with aromatics and cardiacs ; quietude, in a cool, well-ventilated, and darkened apartment ; the tepid affusion on, or cold-spong- ing, the head, if its temperature be increased ; and warmth to the lower extremities ; are the chief remedies. 17. B. In the second form of tiiis affection (§ 11.), if there exists signs of determination of blood to, or of congestion in, the head, bleefl- ing by cupping, or leeches applied behind the ears and below tiie occiput, the affusion of a stream of cold water on the vertex, and purging, are amongst the most efficient means that can be employed. If the delirium be attended by stupor, or tendency to coma, or by suhsuUus tendinum, picking of the bed-clothes, &c., blisters to the nape of the neck, and the treatment advised in the article Coma, will be requisite. If the deli- rious stupor be not removed by the more usual remedies, and if it have arisen from erysipelas of the head, incisions of the scalp of the occiput, as recommended by Copland Hutchison, may be practised. When there is no very consider- able heat of the head, or when the extremities are cool, and the morbid secretions have been purged off, full doses of camphor (F. 494. 496. 903. 906.) may be exhibited. If the pulse be very weak, and the prostration of strengtii very great, the preparations of quinine or of bark, or of am- monia, camphor, assafcetida, valerian, musk, &c., with aromatics and cardiacs, or even wine in the form of negus, should be resorted to. When, with tlie vital depression and increased vascular action characterising this form of delirium, there are appearances of a morbid state of the cir- culating fluid, wc should endeavour to rouse the vital energies at the same time that we excite the TnEATMENt. 495 secreting and depurating organs, by exhibiting camphor with the cholrates (the oxymuriates) of the alkalies (see F. 439, 845. 847. 928.), and the resinous purgatives with bitter tonics and stimulants (F. 492. 504. 572.). In such cases, the treatment recommended in the articles Blood (($156.e«se(/.) and Feveh, will also be "appropriate. As soon as stupor and a tendency to coma appear, in addition to the medicines now suggested, ca- thartic and stimulant enemata (F. 139. 149.), or an active purgative draught (F. 216.), should be exhibited, and repeated according to circum- stances ; and if these fail, blisters, sinapisms, rubefacient cataplasms or liniments, may be re- sorted to. The terebinthinates have been em- ployed by me since 1819, with great benefit, in this and some other forms of febrile delirium. The practice has lately been favourably noticed by Dr. Graves {Med. and Surg. Journ. vol. ii. p. 782.), If the head be cool, and the pulse, particularly in the carotids, be weak, small, and very frequent, either in this or the preceding form, all revulsants from the head, even the keeping it elevated, or warm pediluvia, will be injurious ; and may convert, as Dr. E. Gilchrist {Edin. Bled. Essays and Observ. vol. iv, p. 358. et seq.) long ago remarked, a tranquil, into a most violent, delirium, which may soon terminate in fatal exhaustion. In both the Jirst and second forms of this affection, the practitioner should not be induced to resort to lowering measures, merely because the muscular force is moment- arily increased, and the patient is violent, restless, and agitated. If, with this state, the pulse is very frequent, small, weak, or irregular, and the head not very hot, a restorative and soothing treat- ment will be more beneficial. I have repeatedly observed, that this form of the afl^ection, when su- pervening on protracted and exhausting disease, has been almost immediately subdued by small quantities of warm spiced negus ; by camphor, with capsicum and opium or hyoscyamus ; and by fre- quently sponging the head with cold or tepid water, when its temperature has been increased, or by the tepid affusion. 18. C. The third or inflammatory form of delirium should be treated in every respect as described when discussing inflammation of the brain or its membranes. (See art. Brain.) Ge- neral and local bleedings, cold affusions and apphcations to the head, &c., are indispensable in it. If the delirium be complicated with stupor, or coma, convulsions, contractions or paralysis of muscles, &c., vascular depletions and active alvine evacuations should be followed by external derivatives of a permanent kind ; by incisions of the scalp ; by issues, open blisters, moxas, the use of the tartar emetic ointment, dry-cupping, &c. ; whilst the secretions, &c. should be pro- moted by mercurial and other alteratives, and the bowels fully evacuated from time to time by a cathartic draught (F. 216.), and enema (F. 149.), In every form of the affection, the patient should be irritated as little as possible by opposition, but indulged as much as is consistent with safety, 19, D. I shall conclude by noticing the treat- ment recommended bi/ some authors. — (a) The topical application of cold has been advised by every writer on this affection, particularly since Bartholinus so strenuously recommended it 496- DELIRIUM — Theatment. (De (Jsu Nivis Medico, cap. 25.). It may be prescribed in the form of cold aftusion, pounded ice, cold epithems, evaporating lotions on the head, or simple sponging. If, however, it be con- tinued too long, or after the morbid heat has been subdued, and the features have shrunk, it vyill be injurious, by depressing the nervous energies too low, and favouring the supervention of coma, or violent agitations, terminating in fatal ex- haustion. It is required chiefly in the third form of the disease ; but in the Jiist and second forms, when the temperature of the head is in- creased, it should be cautiously employed, or the tepid affusion substituted for it. In these, how- ^ ever, I iiave preferred that the scalp should be , sponged witii a tepid and very weak solution of the nitro-hydrochloric acid. — (b) Camphor has been nearly as universally prescribed. BiJcHNEn ( De Pr(Estaiitia Camphorce in Deliriis. Hal.E, 1763.), and Tode (in Soc. Med. Hann. Coll. ii. No. 34.) especially recommended it, — the latter with mineral acids. It is a most excellent remedy when judiciously exhibited. If given at all in the third form of the affection, it should be in small doses, with nitre and antimony, or with digitalis. In the first form, it may be prescribed in larger quantity ; and in the second, especially if there be stupor or coma, or a morbid state of the blood, in still larger doses, with tonics, antiseptics, aro- inatics, and cordials. — (c) Opium or Ityos- Ci/amits is noticed by Percival (Land. Med. and P/ii/s. Journ. vol. i. p. 443.), GouBiEn (Journ. de Mtd. t. Ixxxv. p. 244.), DuVuytren, and KoRTUJi (BeiitrUge zur Pract. Arzneiiwiss. No. 9.). In some states of the Jirst and second forms of the affection, when it is purely nervous, or is attended by much agitation, watchfulness, &c., either of these medicines may be employed. In the more doubtful cases, either of iheni may be safely exhibited with camphor and James's powder. In the third form, particularly when it assumes a maniacal or violent character, and after depletions have been carried as far as may be thought prudent, and the bowels have been freely evacuated, I have repeatedly seen a full dose of opium or hyoscyamus, given either alone, or with antimony, or James's powder, and camphor, pro- duce the happiest effect. Any unpleasant symp- tom that may result either from too large doses of these narcotics, or from their inappropriate use, will readily be removed by the cold or tepid af- fusion on the head. The acetate or hydrochlorate of morphia, taken in a full dose of the spirits of pimenta, or in any other aromatic spirit, lias proved equally beneficial with opium, in my prac- tice. The external employment of opium has been found very successful in delirium, by V. Ciii- ARuiiGi (SulC Uso Esterno deir Opio, 8vo. I'lor. 1797.), Ward (Loud. Med. and F/ii/s- Journ. vol.i. p. 441.),and Pehcivai. (//n(/. p. 444.), who have used it in the form of liuimcnt (,"j. triturated with 5 j. of adip. praip.), either with or without camphor. — (d) Purgatives have been jusily praised by all writers on this affection. The ancients prescribed them in very large doses, and preferred the hellebores, which, with calomel and those I have already particularised, should be oc- tivdy exhibiled, according to the strength of the patient. When the debility is great, they must be associateil with a tonic and stimulant treat- ment.— (e) Emetici bavo been mentioned by several writers ; and when delirium proceeds from the ingestion of narcotic, indigestible, irritating, or poisonous substances, or is connected with the accumulation of saburrae in the upper portions of the digestive tube, they are then requisite. — (f) Antispasmodics and cordials, particularly valerian (Warburg, Med. Beobacht. No. 16.), assafoetida (Wanters, Journ. de Med. t. Ivi. p. 115.), musk (KoRTUM, loc. cit.), warm negus, and similar medicines, have been recommended ; and are often of service, when the powers of life are much depressed. — ("■) Blisters have been ap- plied to the head much too indiscriminately : .1 have seen them prove most injurious in this situation. Dr. £. Gilchrist, one of the best writers of his time, directs them both to the head and to the insides of the legs. 1 believe that they will prove beneficial in the former situation, only when the powers of life are sinking fast, and the delirium is attended by stupor, a cool head, and sunk or collapsed features, as in cases of low or adynamic fevers. When this affection is con- sequent upon febrile determination of blood to the head, blisters on the insides of the legs, ^c. may be useful derivatives; but they often occasion so much pain and irritation in this situation, as to thereby counteract, particularly in tlie turbulent state of delirium, any good they might otherwise produce. — (h) Of the sedatires or contra-stimu- lants prescribed by writers, the preparations of antimony, particularly James's powder — digitalis, and the nitrate of potash, are the most deserving of notice. Wherever the delirium is connected with increased vascular action in, or determination to, the head, these medicines are of more or less service when judiciously combined with other ap- propriate remedies. Withering (O/i Digitalis, p. 33.) and Patterson (Med. and Phys. Joimi. vol. v. p. 442.) strenuously advise the preparations of digitalis ; but they, as well as those of antimony, require much caution, if ventured upon in the delirium attendant on low or malignant fevers. It is chiefly in the maniacal or third form of this affection that they are most beneficial, and in it they should be exhibited in a decided manner ; but in the Jirst and second, particularly in the de- lirium of typhus, they are generally injurious. — (J) The actual cautery on the nape of the heck, and moxas, have been advised by JNl. Valentin (Med. and Phys.. Journ. vol. xix. p. 432.), and several otlier Continental writers. — (k) Dr. Grant (On Fevers, 8vo. 1771.) recommends the patient to be allowed to dress and sit up when he feels anxious to do so; but this, and several ju- dicious observations of this writer, are more fully adverted to in the article on Ficver. The ob- servations made on convalescence from Jnjianima- tioiis of the Urain', and from Fever, are perfectly applicable to the management- of convalescence from delirium. (See these articles.) BiiiLioc. A NO Refer. — P. M. J)c Ilcrcdia, De Nat. Deliiii, pjiisquc Cavisis, Opor. t. iii. p. '278. — Vein; De Deliriis ex Voiitrieiilo. Vx. UM>9. —Borr/innvc, liittitut. § .'Jdii, ct ccl Stuhhs, in IMiilos. Trans. No. .'}(>. — VnJi Swk-tcn, CouuncMt. vol. ii. i^Hm. — I'crcr/t, Oiur.st. Med. xii. — Tcichmiycr, De Dcliriantium Furore et Demen- tia, -Ko. Jeiup, l'S!i. — Q?ic/»ta/x, De K|iiclcmic:i Mentis Alienatioiie. I^ips. 1752 ; ct De Delirio ex Ijaclatu. I/ips. ly.M Jllic/incr, De Deliriis, Vitain et Mortem nriTsapicntibus. Hal. 17.'j7 ; ct De lleeticorum Deliriis Malo Online oriundis. Ilalae, 17G"). — ./. Cnobluc/i, De I'araphrosvne, et Different, suis, in lUillrr's Kililiotli. Med. I'r.-ic't. vol. ii. )>. V2i. — Baimier, De Delirio Hy.ste- I rico. Erf. noS. — Niain, Dc Delir. Hysterica KrC. I7ii2. DELIRIUM WITH TREMOR. 497 short time after its cause has ceased to act. The " Delirium Ehrimum " of D.vnwix and some other writers, or the delirious affection which is immediately consequent upon intoxication, is an example of this ; it sometimes subsiding in a fevy hours, or in a day or two, when not injudiciously interfered with : but this is only an occasional occurrence, and cannot be trusted to. This state of delirium, when directly produced as.it com- monly is, by intoxication, is not always cha- racterised by tremors at the commencement ; Snowden and Carter. Delirium Ebriositatis, j but, when thus accompanied, it is often mistaken — Plfeniiiger, De Precipuis Deliriorum Causis. Stuttg. 1779. —Gilibert, Advcrsar. Med. Pract. p. 256. {Front in- anilion.) — Parry, in Mem. of Med. .Soc. of Lund. vol. iii. p. 77. — Bang,\u Act. Reg. Soc. Med. Hauii. vol. ii. p. 76., vol. ill. p. VSl. {Front Dicntal cinotions.) — Raiio'e, in Ibid, vol. ii. p. 13. — Esquirul, m Diet, des Scien. Med. t. viii. art. Delire. — J. Frank, Praxeos Med. &c. par. ii. vol. i. sect. i. p. 654 Georgct, in Diet, de Medeciiie, t. vi. p. 395. DELIRIUM WITH TREMOR. — Sv.n. De- 'lirium Tremens, Sutton. Brain Fever, Pear- son. Brain Fever of Drunkards, Armstrong. Mania I'l Temulentia, Klapp. Mania a Potu, . Blake. Idiopathic Delirium ; Delirium treme- fuciens. Author. La Folie des Ivrognes, Delire Tremhlant, Fr. ■ Ci-AssiF. — 4. Class, Nervous Diseases: 1. Order, Affecting the Intellect (Good), I. Cl.\ss, IV. Order (Author). 1. Defin. — Delirious illusions, with constant tremor of the hands and limhs, watchfulness, and grea tj'req uenci/ of p u Ise . 2. I. Distinctions. — This form of delirium is variously modified, according to the causes n which it originates, and the habits and constitution of the patient. Although it is here divided into two species ; the one being evidently connected with infiammatory irritation of the arachnoid, or for the true form of delirium tiemens, into wliich, however, it not infrequently passes, chiefly owing to the cause in which it had originated. It is generally attended by extreme irritability, often by great violence, and sometimes by general spasms and constant vomiting. The head is usually hot, and the face flushed. This species of idiopathic, or primary delirium, is caused, not only by the use of intoxicating liquors, opium, &:e., but also by the excitement of the cerebral organs by intense or prolonged study, particularly when piosecuted under the influence of depressing causes. Dr. J. Johnson states, that he has seen deliiium tremens in young ladies, whose mental poweis had been exhausted by this cause ; and with excited vascular action in the membranes of ' most probably it was this species of disease the brain, and associated with great irritability — ■ that he had observed, as the treatment which the other consisting chiefly of this last state, attended by exhausted nervous energy ; yet it often pre- sents intermediate forms or modifications, which cannot be referred to the one species more than to the other. Nevertheless a distinction should be made, inasmuch as the predominance of the characters of either species will indicate the propriety of employing more or less of that treatment which is appropriate to it ; for owing to the want of such a distinction, the delirium which arises chiefly from intoxicating liquors has been too generally treated after one fashion, and in too empirical a manner, merely because it has presented one or two characteristic symp- toms,— its numerous other phenomena being en- tirely overlooked. Thus, when the disease arises, as it commonly does, from the abuse of intoxi- cating liquors, it may assume more or less of the features of either species, according as it is directly or indirectly produced by this cause ; but if it be viewed as a consequence of inflam- matory action only, or as proceeding from nervous exhaustion exclusively, the conclusion will in either case be only partially correct, and the practice founded upon it frequently in- jurious. 3. i. Delirium with Tremor and e.xcited A'^AScuLAR Action in thb ISIembranes of the Brain (Encephalitis Tremefaciens of J. Frank). 4. Defin. — With great terror and irritability of temper, and violence upon being opposed ; a fre- quent full, or hard pulse; countenance often wild orjlushed, and the head hot. 5. This species of delirium forms the connect- ing link between that wiiich is purely nervous, and that depending upon inflammatory action of the membranes and periphery of the encephalon he found successful in it, is essentially the same as that which is most beneficial in this affec- tion. Delirium with tremors is also, in some rare instances, chiefly occasioned by excessive venereal indulgences, or masturbation; most probably, however, assisted bj' various concurrent causes. 6. ii. Delirium with Tremor fro.m exhaust- ed Nervous Power (the true Delirium Tremens of modern writers, and D. Traumaticum, or D. Nervosum, Dupuytrex). 7. Defin. — With a morbid recurrence of the patient's ideas to his avocations; a frequent, iveak, or small pulse ; cool, humid, or perspiring surface ; and loaded, but moist tongue. 8. This disease was very generally con- founded with phrenitis, until Dr. Sutton directed attention to it as a specific affection, requiring a peculiar treatment. As Dr. Rvan has remarked, it most probably constituted a large proportion of the cases named " Demonomania " by the writers of the 16th and 17th centuries. It had not, how- ever, altogether escaped attention, previously to the notice taken of it by Dr. Sutton. Dr. Pearson, of Newcastle, had written, for piivate circulation, a small tiact respecting it ; and cases illustrative of its nature and appropriate treat- ment had been shortly before published by Dr. IM'Wiiirter (Med. and Phijs. Journ. vol. xviii. p. 153.): Dr. Saunders had also mentioned it in his lectures, delivered at Guv's Hospital, about the close of the last century ; and that mani- festation of it observed after external injuries is stated by Dr. Blake to have been noticed in Dr. Coi.les's Lectures on Surgery, with an accu- rate reference to its chief, although apparently the predisposing cause, and to the means of cure That it may run into, or form a slight grade, or I which repeated observation has shown to be moit modification, of inflammation of these parts, in successful. some cases, I will not dispute ; but that it always 9. II. Causes, 6cc Whilst the former state is strictly inflammatory, is opposed by the fact of delirium is often directly occasioned by drunk- that it will often subside spontaneously, in a | enness, this is as frequently indirectly produced Vol. I. K k 498 DELIRIUM WITH TREMOR — Causes — Symptoms. by the same cause ; the one being immediately consequent upon or acconripanying intoxication, the other commonly resulting from the abstraction of the accustomed stimulus, after an habitual or continued indulgence in it, or after a protracted fit of ebriety. A slight form of it, or merely tre- mors of the hands or limbs, with deficient nervous power, and occasional illusions, will sometimes appear after habitual tippling, without intoxication having once been produced. The use of intoxi- cating liquors, and the neglect of sufficient food ; a protracted debauch, followed by sudden pri- vation, or by depressing causes; large or repeated depletions employed to remove the headachs or stupor of drunkards, or tiie first species of this delirium ; the treatment indicated by the diseases witii which such persons may be affected; the debility caused by the diarrhoea or cholera some- times consequent on intemperance ; the shock arising out of severe injuries, particularly frac- tures ; exposure to cold, a course of mercury, and the puerperal state*; are principally concerned in the production of this affection. That the delirium which has been called " D. Trau- matlcum " by British writers, and " D. Nervosiun" by DupuYTUEN, is in every respect the same as that now being considered, is proved by the fact of its appearance chiefly in persons of intemperate habits, by identity of phenomena, and by the effects of various modes of treatment upon both being alike. 10. Although the chief cause of delirium tre- mens is evidently the abuse of intoxicating, espe- cially spirituous, liquors, yet this is not the only cause. It may also be occasioned by the drugged beverages prepared in Eastern countries, particularly in the East Indies, when too freely indulged in ; and by the excessive use of opium". But it is chiefly when sobriety has followed a protracted debauch ; and when, during the first days of the abstraction of the accustomed sti- mulus, the additional causes mentioned above, come in aid of the efl^cient cause, — when the habits and indulgences of the patient have pro- duced that state of the nervous system which readily passes into serious disease upon its being influenced by depressing agents ; that true delirium tremens takes place. Inattention to this fact, by nearly all the writers on the disease, excepting Dr. Blake, has led to serious misapprehensions. Practitioners have too generally concluded that the delirium of drunkarils is always of the same kind ; and have overlooked differences very ge- nerally subsisting between that immediately pro- duced by intoxication — the Jirst species of this affection ; and that indirectly occasioned by it — the second species, or true delirium tremens. An occasional, or even a single indulgence in intoxicating liquors to excess will sometimes give rise to the former; a repeated, liabitual, or pro- tracted indulgence is requisite to the appearance of the latter. The frequency of this affection, particularly in the lower classes, justifies the attention recently paid to it ; and I believe that it is more common now than formerly, owing to the cheapness, and facilities of procuring spirituous li(|Uors. Jktween 1820 and 1832, I treated 21 eases, about two-thirds of which were in consult- • I have seen three cases in females, and these were habitual drunkards : the disease appeared in two of them a lew days after delivery. ation with Mr. Houlton, Mr. EAtiNWEtL, Mr. WiNSTONE, Dr. Riding, and Mr. Painter; the others in dispensary and private practice. In some manufacturing and trading towns, it is of frequent occurrence. In the United States of America, it is, however, much more common than in this country. Dr. S. Jackson states, that he has treated upwards of 200 cases; Dr. Carter, of Philadelphia, mentions nearly the same number; Dr. Ware says, that he has seen more than 100; and Dr. Wright, that he has received, in the institution at Baltimore, from 60 to 70 cases annually. But it is evident, from the details they have furnished, in the works referred to at the end of this article, that tiiey have included under the same head delirious affections immediately consequent upon intoxication ; and that, owing to this circumstance, has arisen much of the contrariety of opinion respecting the nature and treatment of the disease, which is as remarkable amongst physicians on the other, as on this, side of the Atlantic. 11. III. Symptoms. — The phenomena of de- lirium tremens vary remarkably, from the slightest forms of nervous tremor with spectral illusions, and accelerated pulse, to the most alarming state of vital depression, muscular agitation, and mental alienation about to be noticed. Dr. Blake has marked out three stages into which the disease may with propriety be divided. It should, however, be recollected, that they are not always obvious or clearly defined ; that they exist only in those cases which supervene on the abstraction of the intoxicating stimulus ; that the first stage is wanting in those that more imme- diately follow intoxication, and consequently in most, if not all, the ^'?'sJ species here described; and that, in the species now being considered, it is but seldom brought under the cognizance of the physician, — medical aid being seldom required until the second period is developed. As the treatment may be more precisely stated when the disease admits of a division into stages, I shall adopt that suggested by Dr. Blake, and which differs but little from that which has been fol- lowed by Dr. Lyon, Dr. IIyan, and Dr. Bark- iiausen. 12. The Jirst stage of true delirium tremens frequently appears from two to eight or nine days after a protracted debauch, or a prolonged fit of intoxication; and is commonly attended by slight febrile action, and gastric derangement, often aggravated by some accidental cause, ex- ternal injury, or contingent ailment (§ 9.), generally the immediate effect of excesses ; but the length of time which elapses between the abstraction of the accustomed stimulus, and the commencement of the symptoms, is often uncer- tain. The first indications of the disease are, according to Dr. Blake, a peculiar slowness of the pulse, coldness and clamminess of the hands and feet, general debility, and diminution of the animal temperatuie. In addition to these, nausea and occasional vomiting, particularly in the morning; much diminution of appetite, and aversion from animal food ; excessive perspiration from trivial exertion; frightful dreams; vertigo, and sometimes ciamps of the extremities, are complained of. The bowels are often consti- pated, but sometimes open, or even relaxed, and the tongue is tremulous, furred, and moist. In DELIRIUM WITH most cases, the peculiar tremor of the hands is present in this stage ; but in a few it is not re- marked until the next. The spirits are much depressed; the patient sighs frequently ; his coun- tenance is anxious and dejected ; he complains of oppression of the prajcordia ; is anxious about his affairs; and is either restless and watchful, or has short and broken slumbers. This state seldom continues longer than a few days. It is gene- rally of longer duration in the old or worn-out drunkard, than in the younger and more robust, in whom it may be followed by increased vascular action in one or two days. 13. 'i'he second stage commences with restless- ness, a peculiar wildness of the countenance, and a hurried anxious manner ; marked suscepti- bility of the nervous system, and irritability of the muscular system ; great excitability of temper, acceleration and smallness of the pulse, and various mental illusions and alienations. The heat of the surface of the trunk increases, but the hands and feet retain the same coldness and clamminess already noticed. The mental de- lusion becomes more constant as this stage is developed, and is generally of a low or melan- cholic kind, with continued reference to the patient's ruling passions and occupations, and anxiety respecting them. lie sees objects where their presence is physically impossible ; is con- tinually haunted by frightful creatures, or oc- cupied with most extravagant ideas, and is constantly endeavouring to avoid them. He now becomes altogether deprived of sleep ; the restlessness and quickness of manner increase ; the countenance is more anxious ; the tongue is more deeply furred ; the tremor of the hands and tongue continue, without remission ; the bowels are either constipated, or, if relaxed, the evacuations are very dark and offensive ; the urine is scanty ; the pulse is soft, or small, and ranges between 100 and 120 ; the pupils are con- tracted, but the eyes are not intolerant of light ; and the patient is talkati\e, constantly occupied with the objects of his delusions; he cannot be kept in one place ; and, when opposed, is violent and noisy. Ihis stage usually continues from one to three or four days ; when it terminates, either in a general mitigation of symptoms, or in more profound collapse of the vital powers, thereby constituting the third stage. 14. The third period, m the slighter or more favourable cases, is ushered in with mitigation of the foregoing symptoms; yawning, drowsiness, and profound sleep, which generally terminate the disease ; but in the more dangernus cases, the preceding phenomena become more severe, and accompanied by more complete depression of vital power, and increased irritability of mind. The patient makes violent and excessive struggles, which are attended by very copious perspiration. As the malady advances, and the energies sink, the coldness and clamminess of the hands and feet, which had been extending upwards during the second stage, spread over the whole surface ; and the pulse becomes still more frequent, small, weak, or thready, and sometimes can hardly be counted ; the tremor increases in the hands, and often invades the whole frame ; and is rather a constant trembling, more nearly resembling that occasioned by severe cold, than the sub- sultus tendinum of typhus, or the nervous rigors TREMOR— Diagnosis. 499 of some other affections. Tiie perspiration be- comes more and more cold, and exhales a pecu- liar smell, which is, as Dr. Hodgskin has re- marked, between a vinous and alliaceous odour. The countenance is commonly pale and anxious ; the pupds veiy contracted ; the tongue loaded, furred, and often brownish at the centre and root, and occasionally red at the point and edges ; the patient talks incessantly, and with great rapidity ; the delirium increases in violence ; and the mind is excessively irritable, and continues so until shortly before death, when a calm takes place. In some cases, instead of this calm oc- curring, the patient is carried off in a convul- sion. 15. Modifications, 6;c. — Such is the more com- mon form of true delirium tremens ; but whilst it sometimes occurs in slighter grades, in which the symptoms differ but little from simple nervous tre- mor, excepting that they are associated with mental illusions, great restlessness, and talkativeness, it also presents more severe forms, in which the phe- nomena approach those characterising the former species, or the delirium ebriosum, in which the vascularexcitement generally, and thatof the brain in particular, is greater, and relatively of a more sthenic kind. At the commencement and second stage of this state of the disease, the pulse is tenser and harder or fuller, the skin drier on the trunk, the delirium more violent, and comprehension less quick, than in the other cases. The eyes, also, are injected ; the temperature of the head is somewhat increased; and the tongue is often dry or cracked, and red at its edges. In the last stage, the skin is bedewed with a cold clammy perspiration ; the pupils are contracted ; the pulse very small and frequent, often scarcely percepti- ble ; the stomach is irritable, and the delirium becomes low and muttering. The tremors are constant, but the watchfulness is sometimes in- teirupted by short restless slumbers, which afford no relief; or it ends, in some cases, in a condition approaching to coma, passing at last into fatal convulsions. Thus some cases of the second form of the disease very nearly approach the first, and differ from it chiefly in being caused indirectly, instead of directly, by intoxicafion. The second species is, however, sometimes consequent upon the first, particularly when treated by too copious depletions ; the vascular excitement of the one passing insensibly, but often rapidly, into the pro- found collapse marking the latter stages of the other ; and this may even occur, although the delirium at the commencement was not attended by tremors. It should also be recollected, that the three stages into which true delirium tremens has been divided, are not always separated by any obvious limits, or even so distinctly defined as generally observed and stated above ; the pheno- mena often supervening in so gradual and con- tinuous a manner, as to render it difficult to determine the end or commencement of eacli, without much attention to all the symptoms ami to the history of the case. 16. IV. Diagnosis. — This disease, which is so difficult to describe, wlien once seen, can never he forgotten. It may, however, be mistaken for the first species, for phrenitis or inflammation of the membranes and periphery of the biain, for the delirium of fever, and for confirmed mania or insanity. — (a) It is to be distinguished from the K k 2 500 DELIRIUM WITH TREMOR —Prognosis — Pathology, first species (the encephalitis tremefaciens) of this kind of delirium, by its coming on a short time after a protracted intoxication, instead of im- mediately upon it; by its being caused indirecily, instead of directlij, by the abuse of intoxicating liquors ; and by the pulse being stronger and fuller, the head hotter, the face more flushed, the surface of the trunk warmer, the delirium more violent, and the patient more irritable, the tongue drier and redder, and the vascular excitement com- paratively greater and more sthenic, in the /jrsf species (§3.), than in the second ; although oc- casionally a few cases of the latter approach these characters of the former. — (6) The same dif- ferences, but in greater degree, exist between delirium tremens and phrenilis, in which are wanting the cold, copious, clammy, and peculiar perspiration, the soft pulse, and the moist tre- mulous tongue and hands. The impatience of light, and fulness of the vessels of the eyes, which accompany the latter, are not present in the former. The illusions, also, of delirium tremens are peculiar, and are accompanied with an anxious, fearful, and constant reference to con- cerns which had previously interested the patient in a particular manner. He can recognise his friends, and return a rational answer to some questions ; and he is more tractable and ma- nageable, when not irritated or opposed, than in phrenitis. — (c) This affection may be readily distinguished from the delirium of fever or typhus, by the history of the case — it being the primary and the most prominent ailment ; delirium gene- rally supervening late in fever. In this disease, the patient is quick in his movements ; is agitated and talkative ; is desirous to be up ; walks about, when permitted, in a hurried manner ; is anxious to follow his occupation, or to avoid, or to find out, or to chase away, some spectral illusion that haunts him ; and is violent when opposed : in the delirium of fever, the patient is prostrate, his countenance less wild, his delirium is lower and quieter, ar.d seldom attended by attempts to get out of bed, &c. (See Delirium, §3. 7. 10.) In the former, there is a marked tremor of the hands, &c. from the beginning, and the patient in the last stage seems to search after objects wliich he thinks he sees creeping over his bed, or floating before him : in the latter, the peculiar tremors are wanting; but there are subsultus tendinum, and picking at the bedclothes, or floccitation. — (d) From maniacal insanity it is to be distinguished chiefly, as stated above(/)), by the great frequency and softness of pulse; by the copious, cold, and peculiar perspiration ; the tremulousness ; by the liistory of the case, — this being an acute, the other a chronic malady. When, however, it occurs in the puerperal state, in which I have seen it, the dilficully of distinguishing it from the mania sometimes supervening at that ];eriod may be considerable : the tremors, the greater frequency of pulse, and more copious and colder perspir- ations, will point out the nature of the affection, and will lead the physician to treat it according as the symptoms indicate a greater or less pre- dominance of nervous exhaustion over vascular excitement. 17. V. Prognosis.' — A first attack, in a con- stitution not yet much injured by the cause of the disi:ase, generally terminates favourably. 1 liave seen even a third attack end so ; but its more frequent recurrence, particularly if it be attended by signs of vascular irritation or erethism of the encephalon (§5. 15.), or by dryness of the tongue, and its complication with some other disease, are circumstances indicating great danger. A want of correspondence in the pupils, and the supervention of subsultus tendinum or convul- sions, or of low and muttering delirium, tiie pulse becoming quicker and smaller, are generally fatal signs. It is aUo more dangerous when caused by opium, than when proceeding from intoxication. On the other hand, a general mitigation of the symptoms, less frequency of pulse, with quiet or sound sleep, are indications of a favourable ter- mination being at hand. In all cases, however, a cautious prognosis should be given, particularly in broken down constitutions ; for success may elude our best ett'orts, even when most anticipated; and lecovery may take place in the most ap- parently desperate circumstances. 18. VI. Pathology. — A. The appearances on dissection have furnished only negative inforruation as to the nature of the disease. In the true delirium tremens, the membranes of the bvain evince but little change ; the chief lesion con- sisting of slight opacity of the arachnoid, es- pecially at the base of the bruin and vicinity. The pia mater is somewhat injected, and a slight efi'usion of serum is occasionally observed in the ventricles. These appearances are, however, not constant ; but they are more marked, and more manifestly inflammatory, in those cases which have accompanied or directly followed intoxi- cation (§ 3.). In these, the vessels are often much congested, particularly those of the velum interpositum, the arachnoid thickened, and the serum more abundant, and occasionally even sanguineous. The stomach generally presents appearances of chronic gastritis, the villous mem- brane being either thickened or softened, or both, and the villi effaced. The liver is variously diseased, — often enlarged, granulated, of a yellow or fawn colour, or presenting the fatty degeneration. The lesions, however, of the stomach and liver, are coincidences only, or changes contingent on the habits of the patient, and not necessarily connected with the pathology of this disease. 19. B. The nature of this disease has been a suljject of much discussion with modern writers, in consequence of no clear distinction having been made between that form of delirium with tremor, which is the result of vital, and particularly nervous, exhaustion ; and that which depends chiefly upon excited circulation, vascularerethism, or inflammatory action, within the heiid. Although numerous instances will present themselves in which the former as well as the latter pathological stale exists, the one, however, predominating over the other ; yet the fact of cither being present, almost solely, if not altogether so, perhaps, in a still greater nundjer of cases, should not be over- looked, as it has been fully demonstrated, both by the post mortem appearances, and by the juvantia and la.'dantia during life. It is most jjrobably iu consequence of having noted the changes ob- served principally in the first species, or in such instances of the second as approach it the nearest, that Dr. Cluiti uuuck and Dr. Biught have viewed this latter as the conse(]uence of inflam- matory action in the arachnoid and pia mater. DELIRIUM WITH TREMOR — Treatment. 501 1 believe, however, that inflammatory irritation, al- though sometimes an attendant on this aflection, is not necessarily connected with it, and certainly is not the pathological state which produces it ; and that, when present, it is not the only con ammoniiE acetatis witli excess of ammonia, and camphor julep. Purgatives are well borne : they may be given energetically, and be often re- peated, in this state of the disease; but they should always be associated with stimulants and dition which is requisite to the development of restoratives, and their action promoted by enemata its pathognomonic chaiacters; exhaustion or de- pression of botli the nervous and sensorial powers being equally necessary to its supervention. It is probable, also, that the vital and nervous de- pression is increased by the morbid impression produced by accumulated secretions of a vitiated kind in the biliary system, and on the digestive mucous surface. Tins conclusion is deduced from a carefal comparison instituted between the symptoms, the agents controlling them, and the morbid appearances observed upon dissection. From this it may be inferred that the pathological states in true delirium tremens, and in thedelirium of typhus, are not wiilely different. It is probable tiiat ihe state of tlie blood, the presence of con- gestion, and the greater affection of the substance of the brain, and of the organic functions, in the latter than in the former, may occasion all the difl^erencesof symptoms which exist between lliem ; the vital exhaustion being nearly the same in both, or perhaps greater in typhus, and tlie ner- vous disturbance being more prominent in de- lirium tremens. 20. VII. Treatment. — Very opposite means of cure have been resorted to in delirium with tremor, owing to the circumstances above stated {§ 2.), and to the evidences of general as well as of local vascular excitement in some cases, or of nervous and sensorial exhaustion in others, or even of their co-existence with more or less pre- dominance of either patiiological condition. When it is considered that the inability to distinguish between such manifestations of the disease as de- pend in a great measure upon vascular excitement within the head, and those which result almost or altogether exclusively from exhausted nervous and sensorial power, must, in some cases, lead to an unsuccessful if not an injurious treatment, the necessity of investigating these points, of en- quiring into the history of each case, and of arriving' thereby at a correct diagnosis — which can be reached only by a strict reference to the existing pathological condition causing the morbid phenomena — before entering upon the treatment, will be evident. Having pointed out the means most beneficial in each of the species of tiiis de- lirium above distinguished, the practitioner may apply them accordingly, and adopt more or less of either method, in order to meet the predomi- nating characters which intermediate or more anomalous cases may present. 21. A. Of the Jiist species, or that ivith increased vascular e.icitemeiit. — This form of tlie disease requires moderate depletion, preferably by cup- ping, or leeches applied behind the ears, and below the occiput ; cold washes or lotions, or the tepid or cold affusion, to the head, whenever its temperature rises above the natural standard ; the tepid bath, or the surface of the body to be sponged with tepid water ; purgatives combined with cordials, &c., if the nervous power be much depressed, or if the attack be occasioned by in- toxication, particularly calomel with camphor or ammonia, or with both ; aperient and antispas- modic enemata (F. 137. 149.) ; and the liquor contammg assafa'tida, the terebinthinates, &c. When the affection is caused by spirituous liquors, we should be extremely cautious not to carry the depletion, although local, too far; anrl upon the first indication of the subsidence of vascular excitement about the head, we should endeavour to anticipate, and prevent the con- sequent depression which will otherwise ensue, by exhibiting, in addition to the ammonia-cam- phorated medicine now recommendnd, moderate doses of opium, or of laudanum, with the view of quieting the perturbation of the frame, and inducing sleep. 22. In the cases of this form of the disease, in which the vascular excitement either is not so great as to require bleeding, or has been somewhat reduced by this practice, emetics may be im- mediately exhibited. Dr. Ki.app, and other American writers, prescribe tartar emetic in fre- quent doses, in those cases which are referrible to the present species of affection, until it either has an emetic action, or nauseates and purges the patient ; and Dr. Blake confirms the result of my experience, as now stated, in recommending emetics of sulphate of zinc, assisted by the ad- ministration of antispasmodics and stimulants, such as aether, camphor mixture, colfee, &c., with the application of cold to the head, while the surface of the body and extremities are sponged with tepid water ; and, in some cases, bleedinsf, without being pushed so far as to increase de- bility. This treatment is, however, most appro- priate when tlie affection is the direct result of intoxication ; but when it arises from other causes (§ [>.), vascular depletions, purgatives, cold applications to the head, and a more sparing use of stimulants, are most appropriate. 23. B. Treatment of ihe second species, or true delirium tremens. — a. During the first stage we should endeavour to cut short the disease, by exhibiting, every hour, very small doses of lauda- num in effervescing draughts, with the sesquicar- bonate of ammonia, in camphor mixture; or the opium with full doses of camphor and ammonia ; and by administering clysters, with assafoetida, camphor, and tinct. opii. Dr. Carter, of Phila- delphia, advises the mistura assafoetidae with tinc- tura opii to be taken every hour or two. Dr. Blake recommends the accustomed stimulus in moderate quantity, and at short intervals : but it may occasion a too violent reaction, utiless the head be guarded by having frequent recourse to the tepid or cohl affusion on it. In some cases, however, warm spiced negus or punch may be allowed, especially in exhausted and old drunk- ard-. This is the only period in vvhicli blisters should be employed — if employed at all. The nape of the neck, or the epigastrium, is the pre- ferable place on wliich to apply them. Anodyne and stimulating liniments (F. 297. 308.) rubbed over the epigastrium are, however, more effica- cious. In some cases, a warm bath will preceile the use of liniments with marked benefit. 24. Of all the cases of the disease I have seen, there has not been one that has not indicated the Kk 3 602 DELIRIUM WITH TREMOR — Treatmknt. propriety of prescribing cathartics, in order to remove accumulated secretions. From the quan- tity of very dark, offensive, bilious evacuations which they have procured, — often not until after their repeated exhibition, and even in cases where the bowels had been opened or relaxed,— I have concluded that collections of vitiated bile in the gall-bladder and hapatic ducts have fa- voured the supervention of this peculiar affection. Under this conviction, I have always exhibited, as -early as circumstances would permit, an ac- tive chologogue purgative, generally a bolus con- sisting of about ten grains of calomel, with as much camphor, and a grain of opium, in conserve of roses • and, in a few hours afterwards, a warm stomachic and aperient draught, followed in an hour or two by an enema (F. 135.). The advantages arising from conjoining camphor, or large doses of ammonia, or capsicum, or other stimulants, with purgatives in .this disease, are manifest ; for, by these or similar means, we shall succeed either in arresting its progress, or in pre- venting the depression which might follow copious evacusUions — fears of which have paralysed the treatment of it. In all cases, but especially in diseases accompanied by low or melancholic de- lirium, accumulations of vitiated bile or other secretions should be suspected and be removed : nor should we infer, from having at first failed in procuring their discharge, that no such disorder exists; for the most active, and even the most judiciously selected, cathartics may long fail in evacuating the thickened and morbid contents of the gall-bladder and hepatic ducts, particularly when their excitability has become exhausted by spirituous potations. 25. h. In the second stage — if it supervene notwithstanding the above means, or if the pa- tient be not seen until it has appeared — the treatment should be commenced by the ex- hibition of the calomel, camphor, &c., as pre- scribed above (§ 24.), if they have not been already exhiliited,' or if they have not procured copious, dark, and offensive stools ; and evacu- ations ought to be promoted by warm and sti- mulating aperient draughts, and by purgative enemata containing assafoetida, camphor, .Sec, or consisting of F. 130. 149. The greater number of the cases I have seen had been treated by able practitioners, according to the plan advised by the best writers, but without success — although purgatives had been given where the bowels had" not been sufficiently open. In all these, this treatment was immediately put in practice, and assisted by cordial draughts containing some one of the ammoniated spirits, and sethers, &c., and by the enemata already alluded to. As soon as alvine evacuations were procured by these means, opium, either alone, or with ammonia or camphor, or with both, was prescribed in full doses, and repeated according to its effects ; and although they were all severe cases, one only terminated fatally. 26. At this period of the disease, the tvarm hath, at a temperaluie of about 90=*, will assist materially in tranquillising the patient, and pro- moting the effects of opium. Dr. VVuumit, of Iialtiniore, strongly recommends it ; but it is not a new practice in delirium tremens, as he sup- poses ; and he is favourable to the use of Dover's powder, which, however, is more suitable to the preceding species. Although opium should be given in full or decided doses, combined as stated above, — (in from one to three or four grains — the smaller quantity being repeated twice or thrice, the larger not oftener than once, and after a longer interval), ■ — it should not be persisted in, unless sufficient time be allowed to elapse after each dose ; for, as Dr. Pearson has observed, if it does not succeed after its exhibition at first in a decided manner, it increases the intellectual con- fusion and danger. Some of the American phy- sicians have recommended enormous doses of this medicine. Dr. S. Brown gives from 3j. to ^ss., or even more, of laudanum for a dose. Dr. S. Jackson prescribes from ten to fifteen or even twenty grains of solid opium every two hours ; and states, that four ounces of good laudanum having been given in twelve hours, partly by mistake, a sound sleep of twenty-four hours' duration, and perfect recovery, were the result. I only am surprised that the sleep was not that of death. These are not solitary instances of the extravagance, if not rashness, of some American practitioners ; nor, indeed, has the practice of giving excessive doses of laudanum in this affec- tion been limited to them. When we find thirty or forty leeches ordered to be applied to the throat of a child five or six years old in croup, and repeated oftener even than once, and the bleed- ing promoted, should we wonder that death ensues ? Feats of hardihood in medicine are too often the consequence of clerical and practical ignorance; and they may be allowed to meet their own reward, as long as they are not ob- truded into the annals of our science, and thereby set forth to the inexperienced as examples to be followed. But when this distinction is conferred on them, it becomes the duty of those who record the progress of medicine, to note also, and to oppose, its backslidings by the severest repre- hensions. 27. I believe that large and frequently re- peated doses of opium in this disease, as Dr. Wright, of Baltimore, has remarked, favour the supervention of coma, convulsions, or paralysis ; and that the effects of an excessive quantity of this drug very nearly resemble the phenomena of the last stage of the disease, particularly towards its fatal close. This fact should not be over- looked, and should lead us to distinguish between the consequences of an injudicious treatment, and the worst features of the malady. It is the abuse of opium that is here argued against ; its truly medicinal exhibition that is contended for, — given in a quantity which sound sense will dictate, and after accumulated and morbid secretions and excretions have been removed, the discharge of wiiich might be imjiedod, or interfered with, by the immediate employment of this valuable remedy. I consider opium as necessary to the cure of this disease, as bark and analogous medicinces are to the cure of ague ; but, as in their case, the morbid coUuvies, which has at least disposed the system to be affected, and aggravated the malady, should be removed, in order that recovery may be ensured and be permanent. 28. In this stage of the disease, particularly when the delirium is attended by much agitation or violence, it is necessary to obtain an influence over the patient's mind by moral means. All irritating contentions, however, should be avoided ; DELIRIUM WITH TREMOR — TnEAtMEKT. 503 and the patient's wishes, when not likely to prove traumatic delirium in that state of constitution injurious to him, be indulged. By thus granting '■•■•■ • ■ ■ what is less material, he will more readily submit to what is important; but he ought not to be left a moment without an attendant. Coercive measures will generally be found unnecessary, if soothing and indulgent but firm treatment be adopted, and the warm bath be occasionally resorted to. In a majority of instances, the above means will be followed by a remission of tlie symjjtoms, and a disposition to sleep will mani- fest itself, — sometimes, however, accompanied by nervous rigors. Opium should now be left off, or its dose much diminished ; and the patient kept as quiet as possible. His first slumbers are often short, broken or interrupted by startings, or terminated by fright. If he awaken alarmed, his distress should be soothed, and a moderate dose of opium with warm spiced negus or punch may be given him; these will generally secure a sound sleep, from which he will awaken in a rational state of mind. Afterwards it will only be necessary to support the strength by light and nutritious diet, and gradually diminish the quantities of the restoratives that have been prescribed. 29. In cases characterised by much vital de- pression, very frequent pulse and cold surface occurring in old and habitual drunkards and broken constitutions, a liberal use of cordials, and even a moderate quantity of the accustomed stimulus, in addition to the opium, should be ad- ministered from time to time ; particularly if the head be cool, the face pale, and the action of the carotids not strong. On the other hand, in those cases which were described (§ 15.) as ap- proaching the first species of the disease, cupping, or the application of leeches on the occiput, or nape of the neck, or behind the ears, will be requisite early in this stage ; and full doses of calomel, and the rest of the yiirgative treatment, with cold applications, or tepid afl'usions on the head, should be more actively employed, and precede the exhibition of opium. In this state of the disease, opium often aggravates the symp- toms, unless it follow a judicious use of these remedies ; and other excitants are equally in- jurious. In these cases, James's powder, or antimony, either previously to, or conjoined with, camphor and opium, will also be productive of much benefit. 30. That state of the disease which comes on after external injuries or operations (§9.), I have imputed chiefly to the previously intem- perate habits' of the patient. It requires the same treatment as the more nervous or vitally depressed cases now alluded to (§29.); and, as well as these, wdl be remarkably benefited by small clysters containing moderate doses of lau- danum, administered alter the bowels have been sufficiently evacuated, and repeated according to circumstances. This treatment has been much re- lied upon by M. Dupuytren ; but if it remove not the disorder, after sufficient time has been allowed for its operation, camphor may be added to it ; and ammonia, musk, fether, &c. be given in suit- able vehicles ; or a moderate quantity of the patient's favourite beverage allowed him, as sug- gested by Dr. Colles. Of two cases recently reported {Med. Gazette, vol.vii. p. 287.), which confirm the view I have taken of the origin of which intemperance induces, opium failed in one; and hydrocyanic acid, which was tried in the other, was equally unsuccessful. I 31. c. If the third stage appear notwithstanding [ the above treatment, little hope of recovery can be entertained, as most likely serous effusion has become superadded to exhausted vital and nerv- ous influence. Nevertheless, medical aid should not be withheld, ospecially if the patient have not received it in the earlier periods, or have been treated injudiciously. The hair should be removed from the head, and either a blister ap- plied, or one of the liniments (F. 299. 308.) rubbed upon it. A blister, sinapism, or other rubefacient, should also be applied over the epigastrium ; and camphor, ammonia, musk, capsicum, &c. liber- ally administered ; restoratives and stimulants being also exhibited in clysters. JMercurial lini- ments containing camphor may likewise be rubbed upon the inside of the thighs, and the warm bath resorted to. 32. d. Certain mades nf practice have been em- ployed, to which a brief reference may be made. Dr. Klapp, and some other physicians of the United States, have recommended tartar emetic in frequent doses, until it nauseates and purges the patient ; but this treatment is more appro- priate in the first species, or in such cases of the second as approach it most nearly (§ 15.) Dr. Speranza, of Parma (Ballet, des Scieit, Med. Sept. 1830.), directs leeches to the head and anus, applies ice to the scalp, and gives calomel and jalap, and subsequently hydrocyanic acid. This method is obviously suited only to the first species, and would be injurious in most instances of the second. From the preference he has given to the appellation adopted by J.Frank, — Ence- phalis tremefaciens, — I would infer that he has never prescribed it in the true delirium tremens. Dr. A. L. PiERSOx (JV. Eng. Journ. of Med. and Surg. vol. ix. No. 2. Ap. 1820.) states, that he gave very large doses of digitalis (sixty drops every three hours) after bleeding, and the pa- tient recovered ; but tiiis was evidently a case of this first form of the disease. Dr. Pauli in- forms us that he has prescribed from three to six drachms of fresh ox-gall, in aromatic water, half a glass of brandy each morning, and two grains of the watery extract of opium at night, in forty- three cases, and has lost only one (Med. Gazette, vol. ix. p. 776.). The propriety of having re- course to moderate quantities of the stimulus to which the patient has habituated himself, in the depressed periods of the disease, and especially in those cases which present the more marked signs of exhausted nervous and vital power, has been insisted on by Dr. Bi.ake, Dr. Ryax, tS;c. and admitted above, as well as by others; and quinine, capsicum, the preparations of hop, and various aromatics and cordials, may be also used as adjuvants of opium. 33. e. During the treatment, little or no nourish- ment is desired, or even required : arrow-root and sago, with a little brandy or wiiite wine, may however, be given from time to time, particu- larly if the patient wish it. When he becomes convalescent, the diet should be very light, but nutritious; and a suitable beverage, in moderate quantity, be allowed. During recovery, the state of the digestive functions ought to be attended K k 4 DENTITION, DIFFICULT — Pathology of. 504 to, and promoted by tonics, and by aperients whenever the bowels are torpid. I have never known or lieard of an instance wherein the state from which the patient has escaped, or tlie re- presentations of the medical attendant or friends, has effected a reformation of the habits which pro- duced the disease. However, the physician should discharge his duty, by stating to him the conse- quences that will accrue from persisting in themT BiBLioG. AND Refer S. B. Pearson, Obscrv. on Braiti Fever. Newcastle, 18U1. — M'Whirter, in Med. and Pliys. Joiini. vol. xviii. v- 153. — T. Sutton, Tracts on Delir. 'I'remeiis, &c. &c. Svo. Lend. 1813. — Ar7n- strong. On Brain Fever from Intoxication, in Edin. Jicd. and Surg. Journ. vol. ix. p. 58. 14(3. — Xicol, in Ibid. June, 1821. — A- L. Pierson, in N. Eng. Journ. of Med. and Surg. vol. ix. 1820. — S. Brotvn, in Amer. Med. Re- corder, April, 1822 K/app, in Ibid. vol. i. ; and Eclect. Repert. vol.vii. p. 2,)2. — Snowdeii, in Ibid. vol. v. — Play- fair, On Del. Trem., in Transac. of Med. and Phys. Soc. of Calcutta, vol. i. p. 12-t. — Coates, in North Amer. Med. and Surg. Journ. vol. iv. ; and in Johnson's Med.-Chirurg. Rev. vol. viii. N. S. p. 457. — Cluttcrbuch, Lectures in Lancet, vol.xi. p 376. — BarJchaiisen, in N. A. Med, and Surg. Journ. vol.vii. — Lcveill^, Mem. siir la Folie des Ivrognes, in Mem. del' Acad. Roy. de Med. torn. i. 4to. Paris, 1828, p. \?.\. — Ki/nn, in Lond. Med. and Surg. Journ. vol iii. p. 2'.'7. — Udis, in Archives Gen. de Meil. t. XV. p. 430. — ./. lilahc, I'ract. Treat, on Delirium Ti e. mens, S:c. Svo. 1830.; and in Edin. Med. and Surg. Journ. Oct. 1823, p.501. — T. H. IVrinht, in Amer. Journ. of Med. Sciences, vol. vi. p. 17. — S. Jackson,'m Ibid. vol. vii. \> 361. — J. Carter, On Mania a Potu, in Ibid. vol. vi. p. ;;21. — Ware, On the History and Treatment of Delir. Trem. Svo. Bost. U. S. 1831. — a/gW, Medical Reports, vol. ii. part i. p. 15, et seq. — Hingeston, in Lond. Med. Gaz. vol.xi. p. 7. — Etiiotsvii, in Ibid. p. 466. — J. Johnson, reported in Lancet for March 2 3. 1833. DENTITION, DIFFICULT. — Syn. Dentitio difficilis, Odniitio Dentitionis, Good. i)i/s- odontiusis, Ploucquet. Difficult Teetlting. Classif. — 1. Class, 1. Order (Good). II. Class, I. OitDtn (Author). 1. Defin. — Slow or delaiied evolution of the ieeih, irith signs of local irritaiion, and con- stitutional disturbance, often with disorder ma- nifested especially in the digestive organs and nervous systems, occurring chiefly in weak or over- Jed children. 2. A general view of the pathological relations of dentition was exhibited in the article Age (§ 10.) ; and, therefore, only that morbid con- diiion of the process wiiich is unattended by disease of an important organ, and is referrible chiefly to this process itself, although often caus- ing disease, or being accidentally associated with it, will he here noticed. 3. i. Dentition, in the most favourable cases, is preceded by slight .salivation, by heat and fulness of the gums, occasional flushings, increased thirst, restlessness or fretfulne.ss, and frequent endeavours both late and slow in taking place, and is often attended by signs of increased irritation, as red- ness or tumefaction of the gums ; by various cutaneous eruptions ; by greater fretfulness, some- times sickness and feverishncss towards night, with restlesness, fits of crying, and sudden starl- ings from sleep. These inay be the only ailments, which may subside either partially or altogether as soon as the tooth has passed the surface, and return shortly before others come in sight ; but not infrequently, particularly in this class of patients, disorders of the prima via, particularly chronic diarrhoea, slight dysenteric affections, or slow remitting forms of fever, obstruction or en- laigement of the mesenteric glands, obstinate and recurring coughs, tubercular degeneration in the lungs or digestive tube, marasmus, &c., super- vene more or less rapiilly, 4. ii. In children who are of a plethoric rather than of a robust habit of body, and which Dr. J. Clarice has, with much justice, ascribed to over- feeding, the gums are often swollen and painful, the face flushed, the head hot and pained ; and all the symptoms of inflammation of the mem- branes of the brain, or of inflammatory fever Avith determination to the encephalon, frequently supervene. In them, the symptomatic fever is generally high, and attended by great thirst, nausea, vomitings, constipation, and occasionally by drowsiness or stupor, or by great irritability and restlessness, or by both stales of disorder al- ternately; sometimes by short broken slumbers, from which the child awakens in a slate of alarm, or in a fit of crying ; or by convulsions, di- minished secretion of urine, and other signs of cerebral affection. These are the usual con- comitants and symptoms, or consequences, of difficult dentition ; but they do not always stop here ; for they often run on into more serious disease, — such disease, however, occasionally appearing more abruptly and without these pre- cursory ailments, at least in such degree or dur- ation, as to become objects of attention to the attendants, or to lead them to resort to medical aid. These maladies, althougli often occasioned either partly or chiefly by dentition, when oc- curring ill children at that epoch ; and whether affecting the cerebral, the thoracic, or the ab- doininal organs, or the skin ; are still more fre- quently independent of this process, and therefore cannot be further alluded to in connection with it, than they have already been in another place (see Age, § 10.); — and, indeed, in most instances . . , in whicli a close connection between them and to thrust things mto the mouth, evidently to allay difficult or morbid dentition is observed, it is that iintation or itchmg. These symptoms generally i of concurrent effects of constitutional predis- appcar about the third or fourth month, and pre- position and of anterior changes in the organic cede the appearance of the teeth sometimes by ! functions ; the local irritation and sympathetic several weeks; and occasionally subside, and re- I febrile disturbance either exciting morbid action in such organs or tissues as, from hereditary con- appear shortly before the tooth makes its way through the surface. These signs of disturbance are merely the necessary attendants on the form- ative processes going on in the gum. Hut very commonly in children of deficient vital power, and occasionally in those which arc apparently robu.a, or rather plethoric from overfeeding, den- tition is either delayetl, or is attended by more serious disorder, paitici larly while the canine teeth are being protruded. In delicate children, particularly those living in crowded towns, and low and ill-ventilated localities, this process j.s formation or vice, are disposed to it ; or aggra- vating previously existing disorder, and rendering evident what was before latent, or unobserved. In these cases, therefore, dentition is to be looked upon either as a principal, or as a concurrent exciting cause of many of those diseases which occur at the period of dentition — but a cause most fre(|uently concurrent with improper feeding and clothing. 5. iii. A natural or slightly difficult dentition may be converted into serious disease, by the not DENTITION. DIFFICULT — Treatment. 505 uncommon habit of giving the infant food when- ever it cries from tlie irritation attending upon the process, and thereby overloading and further dis- ordering the digestive processes, which are already disordered by the febrile disturbance generally accompanying it; whilst determination of the cir- culation to the head is favoured by the practice of covering the head in-doors or when asleep, and by wearing tiiick felt hats during mild or warm weather. Brandis believes tliat difficult den- tition is the consequence of obstruction of the salivation which accompanies, and is salutary in, this process : Heckeh, that it results from a mor- bid state of this secretion : ^Mvlius, that it is the effect of disorder sympathetically induced in the never occurs when the operation is judiciously performed ; when the lancet is clean, not carried too deep into the gum, if lancing be performed early in the process ; and when its edge is directed rather outwards, as recommended by 31r. Mar- ley. That the cicatrix may oppose the passage of the tooth is certainly not proved ; but this, if it did, is no objection, as a repetition of the opera- tion, is often necessary, and generally beneficial. M. Bitoi'ZET (Sur I'Kdiicut. Medic, des Enfaits, t. i. p. 234.) -advises the surface of the gum to be divided, from time to time, by the point of the nail, — a practice which possesses the advantage of not alarming the child, of being easily and readily performed, and of delaying the closing of the liver : Thom, that denlition often occasions an j divided part. But care should be taken not to acrimony of the abdominal secretions, which perform it until the nails have been well cleaned. react upon the original seat of disorder, and upon i 8, 'J'he propriety of allowing the infant to rub the system generally ; thereby rendering it difficult ' the guius with hard substances has been ques or morbid : AVigand, that the affections attendin delaying, and otherwise disordering, this process, are accidental complications merely ; and John Clarke, that all such disorders are commonly the consequences of pletiiora arising from over- feeding. Now, in all these opinions, there is much truth ; and one or other, or several of them obtain in many instances, more, however, as con- tingent and related effects of the local irritation, than as causes of the difficulty of the process, — which irritation is the chief or concurrent cause of febrile disturbance, of disordered function, and at last of more palpable disease, according to the condition of particular organs at the time, and constitutional or acquired predisposition. 6. iv. The inuplion of the second or permanent teeth may also be delayed or attended by sym- pathetic disorders, particularly in persons whose viaxilla: are insufficiently developed, and when the denies stipientes, and the canine teeth, are ap- pearing. In delicate, nervous, and irritable sub- jects, swelling of the parotid and sub-maxillary glands, painful and sometimes periodic affections of the ear or face, slight or recurring opthalmia, irregular convulsions, or epilepsy, and chorea, have, in some instances, been excited by this cause ; and have disappeared upon the eruption of the teeth, or the removal of the local irritation. 7. V. The Treatment of difficult dentition should be directed with the intention — 1st, of re- moving the local irritation ; and, 2d, of subduing the sympathetic disorders associated with it. — A. The local irritation requires scarification of the gums whenever they are at all swollen or red ; and particularly in the second stage of the process, when the tooth has reached the surface, whether there be redness and swelling, or not. The pro- priety of this operation has been, however, called in question, particularly by Sternberg, Storcii, Tiio.M, and Brandis, on the plea of its inutility, of it occasioning ulceration or disease of the cap- sules of the teeth, and of the cicatrix which is soon afterwards formed being absorbetl with greater difficulty than the other parts. But these are by no means valid objections — for its utility has been proved by the experience of Harris, Cowrer (^Aiiat. of' the Hum. Body, &ic.), Bromfield (O/j- spri'rtf(07?s,^'c. vol. ii. p. 17.), Berdmore (Treatise on the Teeth, (?)C. 8vo. Lond. 1770.), Hurlock, RlEDLlN, W EDEKIND, KeNNEDV, MaRLEY, mySclf, and most modern writers of experience : and, as to the contingent ulceration of the gums, it seldom or tiontd by Auzebi, Mari.ey, and others, from an idea that they will hereby become more callous, and absorded with greater difficulty. But the truth of this is questionable. I believe that sub- stances pressed frequently between the gums, materially lessen the irritation and distressing itching felt in them, and promote the flow of saliva, —results of no mean importance in pre- venting the supervention of sympathetic disturb- ance. These results will be ensured, in cases of existing irritation, by frequently moistening what- ever substance is thus employed with biborate of soda mixed in a little syrup of senna. 9. Besides the above, various other means have been recommended in order to subdue the local irritation: the chief of these are — a preservation of a lax state of the secretions and bowels; leeches, particularly behind the ears (Syden- ham, Kortum, Stole, Leroy, Journ. de Paris, 1784.); internal emollients (Paulus ^Eginatus, 1. i. cap. 9., and Bekker, Hermet. liediviv. p. 705.) ; various derivatives (Hvfeland) ; calomel (Mylius and others); the alkalies (Hecker) ; cold applied to the face (Wigand) ; opium (Wedt;kind); and active purging (Van- dermonde and Portal, Anat. Medicate, t. i. p. 211.). The best means of promoting the se- cretions and alvine evacuations are, small doses of hydrarg, cum creta, conjoined with the dried carbonate of soda, and, if the state of the bowels requires it, with the pulv. jalapjp, given every night. Leeches behind the ears, and cold ap- plied to the head, should never be neglected whenever the temperature of this part is in- creased, and other signs of determination of the circulation to it are observed. In such cases active cathaitics, calomel with James's powder, and the rest of the treatment recommended for cerebral diseases, are necessary. Blisters applied also behind the ears are the best external de- rivatives ; but they should be removed as sooa as redness is produced. Opium is very seldom ad- missible ; but, if much irritation exist, the tepid bath, and syrup oT poppies with small doses of the biborate or the carbonate of soda, may be pre- scribed. If the gums become ulcerated, biborate of soda or sulphate of alun)ina, or the boracic acid, in honey or syrup of roses, should be employed. 10. B. The sympathetic disorders should be sub- dued as soon as they appear. — (a) If the head indicate vascular excitement, the means already specified (^ 6, 8.) should be directed ; and if 506 DIABETES. the symptomatic fever, with or without determin- ation to this quarter, be considerable, cooling aperients, and saline and antiphlogistic diapho- retics, are requisite, with the cold affusion on the head, the tepid bath, &c. — (6) Constipotion, or colicky affections, which are not infrequent during this epoch, should receive immediate attention; and aperients, emollient laxatives, — as castor oil with two or three drops of oleum anisi, hydrarg. cum creta with carbonate of soda, — and, if requisite, purgative and anti- spasmodic enemata, ought to be prescribed. — (c) Care ought to be taken not to check a slight diarrluEa ; but if it passes beyond this, emollients, demulcents, refrigerants, diaphoretics, alteratives, tonics, absorbents, &c. should be prescribed, according to the circumstances of the case, and be assisted by the semicupium, warm clothing on the lower part of the body, and occasional doses of rhubarb with magnesia and hydrarg- cum creta. — (rf) In some cases, both vomiting and purging, or a slight form of cholera, or of choleric fever, supervene ; the stools being greenish, spinach- like, and offensive, sometimes terminating in a gelatiniform softening of the mucous surface of the stomach and bowels, as described by M. Cruveilhier ; but more fre- quently without such disorganisation, as M. GuERsENT has remarked. The classes of remedies just now particularised are also admissible in this affection. (See Choleric Fever of Infants, and DiARRHffiA.) — (e) Watchfulness, irritability, fre- quent starting from sleep, with crying, iScc- should always be dreaded, especially when the canine or anterior molar teeth are about to appear, as not infrequently being the precursors of con- vulsions, and indicating much sympathetic irri- tation of the nervous system with disorder of the digestive organs, and excited circulation in the encephalon. On the other hand, somnolency, particularly in plethoric children, evinces con- gestion within the head, which may be readily converted into inflammatory action ; or it may terminate in effusion of serum : and either con- dition may usher in convulsive spasm of the larynx, the nature and morbid relations of which have been so little understood. In all these varying states and relations of disease, leeches applied behind the ears, lancing the gums, purg- atives, emollients, refrigerants, a cautious ex- hibition of narcotics, laxative and antispasmodic enemata, the tepid bath, cold or tepid affusion on the head, rubefacient and anodyne liniments (F.298. 308. 311.) rubbed along the spine, and, in delicate children, gentle tonics, are requisite, and should be modified according to the habit of body, and the particular features of the case. (See Convulsions in Children ; and Larynx — Convulsive Spasm of.)—(f) The occurrence of obstinate conghs at this period should suggest attention to the state of the gums with the use of demulcents and emollients, conjoined with laxatives, external derivatives, and diaphoretics. Leeches, also, ought to be resorted to, if the cough be attended by heat of skin, quick pulse, accelerated respiration, or if the child be ple- tlioric. — (g) I'Wuplions, also, on the head, be- hind the ears, or on any part of the surface, ought not to be suppressed by external applications ; but the functions of the abdominal and depu- ratory organs ought to be promoted by alteratives and gentle aperients, and the utmost cleanliness of the skin preserved. 11. C. — (a) During dentition, the head should be washed with cold water night and morning ; and no other covering than that with which nature has provided this part should be put upon it when within doors or asleep; and on no occasion should warm felt hats be worn, thin straw or white hats being lighter and cooler. — (h) The diet should be carefully attended to, and that only allowed which is easily digested ; and even it ought to be taken in moderate quantity. The child ought also to be much in the open air ; and, if the process threaten much constitutional or local disease, an entire change of air will often be advantageous. BiBLioG. AND Refer Hippocrates, Tli^l oSovTojwijf , Opera, cura t'ander Linden, \o\.'i. p. 590. — A'etius, Te. trab. i. ser. iv. cap. 9. — Avicenna, Canon. I. iii. fen. 7. tract, i. cap. 16. — De Castrillo, De Dentitione. Valadol, 1557. ; in Mailer's Bibl. Med. Pract. vol. ii. p.Ug. — Pa- rans, Opp. Chirurg. 1. xxiii. cap. 67. — Ricdlin, Lin. Med. lt)95, p. 406. — Ortlob, V)e Dentitione Puer. Difficili. Lips. 1694. — Sydenham, Ojip. p. 248. —Harris, De Morbis Acutis Infantum, p. 28. — Beurlin, De Dentitione Diffi- cili. Altd. 17'20. — J. Hurlock, Practical Treatise upon Dentition. Lond. 1742, 8vo. — Junckcr, De Dentitione Difficili. Hal. 1745. — Vandermonde, An Infant. ^ Den- tit. Convulsionibus vel Soporibus repetitus Catharticorum Usus. Paris, \'bl.— Stall, Pra?lect. i. p. 247., iL p. 414. — Wigand, Beitrage, heft. ii. p. 141. — J. Hunter, The Nat. Hist, of the Human Teeth, &c. pp. 132. 234.— 7J. Blake, On the Struct, and Form of the Teeth, &c. Dub. 1801. — Wichmann, Ideen zur Diagnostik, b. ii. p. 3. — Wagner, De Dentitione DifT. a dubiis CI. Wichmanni Vindicata. Jen. 1798. — Thom^ Erfahrungen und Bemerk. p. 21 Storch, Kinderkrankheiten, t. ii. — Brandis, Versuch ueber die Metastasen, p. 210. — Ludwig, De Dent. Diff. Lips. 1800. — Ji'edekind, in Hi/feland's Journ. der. Pract. Hcilk. b. ix. st. 1. p. 34. — Mi/lius, in Ibid. b. xxvi. st. 2. p. 188 — Hecher, in Magazin fiir Pathol. Anat. und Phys. b. i. — Hiifeland, Bemerk. ueber Blattern, &c. p. 341. — Fox, On the Diseases which affect Children in the first Dentition, in Nat. History of the Teeth. Lond. 180.3, 8vo. — Bickat, Anat. Generale, t. iii. p. 88. — Beaumes, Traite de la Premiere Dentition, et de Malad. qui en dependent. Paris, 1805, 8vo Gardien, Sur les Mai. des Enfans, &c. — M. Good, Study of Med. vol. i. p. 50 J. Kennedy, On the Management of Children in Health and Disease, 8vo. Lond. 1825, p. 297. — S. Palmer's Popular Illustrations of Medicine, 8vo. Lond. 1829, p. 127.— T. C. Haden, Observ. on the Management and Diseases of Children, Svo. Lond. 1827, p. 132 Darwall, On the Management and Disorders of Infants and Children, &c. 8vo. Lond. 1830, p. 79. — Marley, On the Nature and Treatment of the Diseases of Children, 8vo. Lond. 1830, P- 90. — Evanson and Maunsell, On the Management and Diseases of Chil- dren, Svo. Dublin, 1836, p. 196. DIABETES. Excessive Secretion of Urine. — Syn, AiaC>jT»i? (a siphon ; or from Siafai'va), transeo). Lienteria Urinalis, Tabes Urinulis Diarrhoea Urinosa, Hydrops ad Matula7n, Fro- fluvium vel Nimia Profusio Urinie, Cito Emissio Rerum qux bibnntur, Auct. Vet. Polyuria, Seidel. Diabetes Anglicus, Mead and Sauvages. Plithisuria Saccliarina, Diabetes Succharina, Nicolas, Gueudeville, Hufeland. Diabetes iVie//ifi(s, Cullen and Sagar. Dipsucus, Ilecker. Phthysuria, lieU. M(;/((i(?-ia, ll.VVillis. Harn- fiuss, Honigartige Ilarnruhr, Germ. Urinjiod, Dan. Diabite, Fr. Flnsso d'Orina, Ital. Urine-Flux. Classif. — 2. Class, Nervous Diseases; 3. Order, Spasmodic Disorders (Culten). 6. Class, Disease of the Excreting Func- tion ; 2. Order, Affecting Internal Sur- faces (Clood). I. Class, II. Ordeu (^k- thor in Preface'). 1. Defin. — Urine secreted of a sweet taste and violet smell, generally in large quantity, loilh great thirst, dryness of skin, debility, and emaciation. 2. This disease was but sligiitly alluded to by DIABETES — Symptoms. Celsus. AnET^fUs gave a tolerably complete history of it, which the majority of his followers merely copied. Alexander of Tralles added nothing to either its pathology or treatment, ex- cepting the drawing of a comparison between it and lientery ; and Aetius, taking up the same idea, states, that the one affection differs from the other in as far as that the undigested aliments pass ort", in the fotmer by the urine, in tiie latter by the stools ; an opinion which was afterwards adopted byFERNEL, Duret, Zacutus-Li'sitanus, and othere. ButWiLLis was the first who advanced a rational theory of the disease. Since his time, opinions as to its pathology have been various, and the remedies recommended still more diversified. 3. Even up to the present day, the term dia- betes has been applied to various states of dis- ease : — 1st. To that consisting chiefly of diuresis, or morbidly increased flow of urine, without reference to its quality ; 2d. To that in which the urine is voided not only more frequently, and in larger quantity than natural, but also of changed quality, as respects certain of its con- stituents, viz. albumen and urea, either of which may be in excess ; and, 3d, to that in which a saccharine matter is either superadded to the other ingredients contained in the urine, or in part replaces them. To the last of these morbid states I shall limit the term diabetes, conformably with the views of Dr. Prout and M. Renauldin. The other morbid conditions of the urine will be noticed when treating of the pathology of this secretion. (See Urine.) Restricting, therefore, the term diabetes to that state of the urine cha- racterised by the presence of saccharine matter, I have defined it accordingly. In consequence of the very vague ideas which have but too generally been entertained both as to the phe- nomena requisite to constitute this malady, and as to its various morbid relations, diabetes has generally been considered with reference to the quantity of the fluid secreted, without regard to the circumstance alluded to by Dr. Parr and others, and judiciously insisted on by Dr. Prout, that the disease may exist for a long time, and the urine be extremely saccharine, without much, or even any, increase of its quantity; and, when the urinary discharge is augmented much beyond natural, that it is much easier to reduce it even to the usual quantity, than to restore it altogether to its natural quality. 4. I. Symptoms. — A. The urine of diabetic pa- tients is generally of a pale straw or greenish yellow colour ; of a faint and peculiar odour, sometimes resembling that of hay or of sweet whey or milk, or of violets. Its taste is always more or less saccharine ; and its specific gravity usually varies from 1*025 to 1-052. The quantity of urea is seldom much diminished in diabetic urine: Dr. Prout and Dr. Henry have never observed it altogether absent; and iNIr. Kane and INIr. IM'Gregor have found it in greater relative proportion than in healthy urine, but masked by the sugar or snccharine matter held in solution : there is little or no lithic acid. The usual saline ingredients in healthy urine exist in the urine of diabetes, but in diminished quantity, whilst their relative proportions continue nearly the same. Dr. Watt has found a little blood in it ; but this is a rare occurrence : it much more frequently contains albuminous matter analogous to that of 507 chyle. Dr. Henry has given a useful table, showing the quantity of solid extract in a wine pint of urine of different specific gravities from 1*020 to I'OSO. The following abstract of this table will enable the reader to ascertain the quan- tity of solid matter diabetic urine may contain : — Specific graTity com- Quantity of solid ex. tract in a wine pint. Quantity of solid ex- pared with 1000 parts of water at 60". tract in a wine pint. grains. oz. dr. scr. (»rs. 1020 382-4 0 6 12 1021 401-6 0 6 2 1 1022 420-8 0 7 0 0 102.J 440-0 C 7 1 0 1024 459-2 0 7 1 19 1025 478-4 0 7 2 18 1026 497-6 1 0 0 17 1027 516-8 1 0 1 16 1028 536-0 1 0 2 16 1029 655-2 1 1 0 15 1030 574-4 1 1 1 14 1031 593-6 1 1 2 13 1032 612-8 1 2 0 12 1033 (■32-0 1 2 1 12 1031 651-2 1 2 2 11 . 1035 670-4 1 3 0 10 1036 689-6 13 19 1037 7()8-8 13 2 8 1038 728-0 14 0 8 1039 747-2 14 17 1040 766-4 14 2 6 1041 785-6 15 0 5 1042 804-8 15 14 1043 824-0 15 2 3 1044 843-2 16 0 3 1045 862-4 16 12 1046 881-6 16 2 1 1047 900-8 17 0 0 1048 920-0 17 10 1049 939-2 1 7 1 19 1050 958-4 1 7 2 18 This table enables us to ascertain with consider- able precision the quantity of solid matter voided by a diabetic patient in a given time. Thus, suppose 10 pints are passed in 24 hours, of the average specific gravity 1-040, it is evident that this will contain 10 x 1 ..4 ..2. .6=15 ..7 ..2, or upvv'ards of a pound and a quarter of solid extract. Diabetic urine, in a moderate temperature, be- comes sour, smells like turned milk, and some- times ferments. With the addition of a little yeast, it readily undergoes the vinous fermentation, yielding alcohol by distillation, the quantity of which indicates the amount of saccharine matter in the urine. 5. Besides the saccharine condition of the urine, the next most striking and constant symptom is its increased quantity. Sometimes the quantity voided is enormous. P. Frank details a case in which 52 lbs. were passed in twenty-four hours ; and instances are by no means uncommon of from twenty-five to thirty-five pints having been discharged in the same time for weeks, or even months together. In some cases the urine has been said to have been nearly double the quantity of the whole ingesta, — a circumstance which has puzzled physiolojists to explain, and has in- duced some to believe that, in addition to the colliquation of the solids of the body, absorption of moisture from the air actually takes place during the disease in some cases, either through the medium of the resjiiratory organs or cutaneous surface, or both. I believe, however, that so great a difference between the quantity of the ingesta and urine, as here stated, is extremely rare ; although a considerable excess has been proved by Dr. Bahdsley ; and the experiments of modern physiologists have shown that th« 508 DIABETES — Complications — Terminations — Dun atiox. lungs may absorb moisture from the atmosphere, although the skiu may be incapable of doing so. 6. B. The constitutional si/mptoms are often ushered in by weariness and aversion from any exertion ; by dryness and disagreeable taste in the mouth, the saliva becoming white and frothy ; and by a sense of weight, heat, or pain, in the epigastrium, accompanied with alternate chills and flushings, or burnings of the palms of the hands and soles of the feet. To these supervene dryness of the skin, much thirst, costiveness ; a saccharine state of the urine, with, and sometimes without, an increased secretion of it ; a craving appetite, and all the symptoms constituting the disease. In many cases, the urine has evidently been saccharine, without much increase in its quantity, long before the attention of either the patient or practitioner had been directed to this secretion. In other cases, the disease attacks more suddenly, generally with dryness of the mouth and throat; dry skin; a feeling of heat and pain in the epigastrium, occasionally with headach, commonly with aching of the back and loins, and pain in the course of the urinary pas- sages; sometimes, as mentioned by Ballonius, a sense of cold in the loins is complained of. The urine generally, now much increased in quantity, presents the appearances already described, and deposits no sediment. The breathing is short, sometimes difEcult or oppressed, with a short tickling cough ; sometimes muco-puriform ex- pectoration, and flying pains through the chest. The desire for drink and food increases ; the skin becomes rough or scaly ; the tongue either loaded with a dark-coloured fur, particulaily at its base, or unnaturally clean, and of a dark red, or purplish red hue ; the mouth foul, dry, and clammy; the bowels constipated, the evacuations being difficult, painful, dry, and often without their natural odour. A hay-scent sometimes issues from the body, as first noticed by Dr. La- tham, and a similar halitus occasionally from the lungs. As the secretion of urine increases, the thirst and hunger become intolerant, and, in some cases, the latter amounts to complete pica, as stated by Sprkncki.. The sense of heat and burning at the epigastrium is exasperated, and extends in the direction of the urinary passages, frequently with phymosis, and some degree of uneasiness or inflammation about the external orifice of the urethra. The secretion of the prostate — but not the semen, as loosely stated by some writers — is sometimes voided after the dis- charge of urine ; and the patient loses his sexual propensities and powers. To these symptoms are generally added, chilliness, and great sensi- bility of cold ; cold extremities, often alternating with burning of the soles of the feet, and slight ccdema; acid eructations, flatulence ; painful muddy eyes ; indistinct vision; headach or ver- tigo ; dyspnoea or cough, and weariness on the least exertion ; a sense of sinking at the epigas- trium ; weight and tenderness about the pra-cor- dia ; frequent sighing; listlessncss; a weak, forgetful, di-trusting, anxious, wavering, and peevish state of mind ; and great dcprc-sion of spirits. As the disease advances, the debility and emaciation increase. The skin becomes rugous and scaly, particularly over the abdomen ; and the veins large and distended. The fauces and tongue now assume a dark red tint, and are un- naturally clean ; the gums spongy or partially absorbed; the teeth loose, and the brealh foetid. In some cases, aphthaj appear in the mouth, and the gums ulcerate. Patients sometimes complain of a sweetish or mawkish taste ; and the saliva has been found to ferment briskly when a little yeast was added to it. The pulse is at first but little affected : occasionally it is somewhat hard or frequent, particularly after a meal, or during the febrile exacerbations which usually occur in the advanced state of the malady. In the last stages, the pulse is often quick, sharp ; or weak, small, and compressible. It is, however, very variable in different cases, or even in the same case. 7. C. The blood taken in the progress of the disease generally separates into a loose, dark crassamentum, containing a smaller proportion of fibrine than the clot of healthy blood; and a whitish or light-coloured serum, resembling whey. Its analysis has been made by several eminent chemists, with the view of detecting saccharine matter in it. Nicolas and Gceudevilt^e consi- dered it less anlmalised, and to contain a smaller quantity of fibrine, than healthy blood ; but they found no saccharine matter. Woi.easton, IMar- CET, Henuv, and Phoit, also failed in finding any of this matter in the serum ; whilst Riciiter conceived that he could detect it by the taste, and, with many other pathologists, believed that it exists in small quantity in the blood, from which it is so constantly eliminated by the action of the kidneys, as never to accumulate to the extent of being detected by chemical agents ; or that it is concealed by its combination or admixture with albumen. More recently it has been actually de- lected in the blood, first by Ambrosiani, and more recently by Mr.C.MAiTLANDand iNIr. M'Gregor. 8. i. Complications. — I have scarcely met with a case of this disease which was entirely un- complicated with pulmonic symptoms ; and a similar remark has been made by Dr. Bardsley. On this account I conceive that the appellation given to the disease by Nicolas and Gceude- viLLE, of Plttliisurie Suciee to be extremely ap- propriate. It should, however, be conceded, that, in many cases, other organs participate in func- tional, and even in organic disease, particularly the digestive mucous surfaces, and the liver. In- dceii, it may be often looked upon as a result of a breaking down of the system, often in con- sequence of intemperance and illicit indulgences, and exhaustion of the vital energies and assimi- lative functions, whereby several, or even all, of the organs concerned in the perpetuation of life suffer more or less. 9. ii. Terminations. — If unchecked by treat- ment, the debility increases, and pulmonic symp- toms, with hectic fever, if they have not already existed, seldom fall of appearing. Occasionally the disease pusses into incurable dropsy. Not infrequently the discharge is much diminished, and more urinous, for a short time before death ; and, in some instances, the patient is suddenly cut oft" either by apoplexy, or, as observed by Dr. Pitoui', by a jicculiar affection of the stomach occasioned by improper food, or by over-disten- sion of this viscus from the excessive quantity of solid and fluid ingesla, 10. iii. DuiiATioN. — Diabetes generally con- tinues for an indefinite time, according to the suddenness or acuteness of the attack, the pre- DIABETES — Organic Changes — Prognosis and Diagnosis. 509 vious health of the patient, the nature of the exciting cause, the form of the complication, the diet and regimen prescribed, and the means of cure employed. It is always exasperated duiing cold and moist weather. Frank stales, tiiat it is also worse in autumn. IIiiCKEn, Thenaud, Du- PUYTREN, and the author, have known it to con- tinue, with intervals of injprovement, for many years ; and Oosterdvck states that he treated a case that terminated unfavourably in a fevv days. Wiien the issue is fatal, it commonly runs its course in a few months, and is seldom of shorter duration than several weeks. I believe that the disease not infrecpiently exists, for a considerable time at least, without any very sensible increase of the quantity of tiie urinary discharge, and that it is hence often far advanced before it comes before the physician; and that many cases which have been believed or stated to have been cured, have experienced merely a temporary benefit, — the malady returning in all its severity from the slightest exposure to its more common exciting causes, or the least want of attention to the requisite diet and regimen. 11. iv. Organic Changes are by no means constantly observed after diabetes, even in the urinayy urgmis ; and, when present in them, are not such as may account for the disease ; but, as Hecker has justly contended, are rather its effects than its causes. Rutherford, Home, Duihiy- TREN-, Segalas, and Dezeimeris, have found the kidiiei/s somewhat enlarged and vascular. Bonet, MoRGAGNi, Monro, Hertzog, Cawlev, De- SAuiT, and Hecker, have observed them onlymoie flaccid than natural : and Cruickshanks, Reil, . Rutherford, Duncan, and Baillie, have re- marked merely a more turgid state of their blood- vessels; which Frank and Vetter have stated to have been more lacerable than in the healthy state. In rarer instances, one or even both kidneys have been observed much smaller than usual (P. Frank, iNIuller). Hydatids hove been found, by J5eer, filling and distending them enormously ; and calculi have been de- tected in their pelvis by Baillou. Ruvsch and Hecker met with cartilaginous induration of their envelopes and cortical substance ; and Brodie found their structure hard and gristly. RIuleer mentions enlargement of their nerves; and Duncan records a case in which the splanchnic nerves were all enlarged to three or four times their natural size. CoNRADi observed the pelvis of thekidneys enlarged so as to contain a small orange; and Ruysch, Rutherford, Reii., Hecker, and Clarke, remarked considerable dilatation of the ureters. Increased size of either the pelvis of the kidneys, or of the ureters, or urinaiy bladder, or even of them all, is not infrequent. In some instances, the bladder is thickened, or contracted, and slightly inflamed, and the prostate enlarged. All the urinary organs, however, have been found as frequently natural, even by the autliors now mentioned, as presenting the above changes. 12. Next in frequency to enlargement and flaccidity of the hidiicys, the mesenteric glands have presented morbid appearances. INIascagni, JuNCKER, lIiMi.v, Reil, Home, Cawley, and Hecker, have found them enlarged, obstructed, and otherwise changed ; but they also have been met with perfectly natural, by the same authors, as well as bv others. Rutherford and jMonro have observed enlargement, softening, and in- creased vascularity of the absorbent glands gene- rally. The thoracic duct has, in a few instances, been found greatly enlarged and dilated. The lungs are, perhaps, as frequently diseased as any other organ. 1 have never seen a case examined in which tiiey were perfectly healthy. Luroih, Segalas, Dupuvtren, and Horn, have severally observed tubercles in every stage of their progress ; ulcerations, tubercular excavations, hepatisations, and i)urulent collections or disseminated vomiciK, in the lungs, as well as inflammation of the pleura, and its consequences — adhesions of the pleura, &.C., of the pericardium and pleura, serous effusion into the pleural cavity, i^tc. JM. Lurotii detected, in addition to hepatisation of, and ex- cavations in, the lungs, aneurism of the pul- monary artery, the kidneys being sound. Similar states of the pulmonary artery, lungs, and kid- neys, were found in a case recorded by M. Lobstein ; the lungs being extensively tuber- culated, hepatised, and adherent to the thorax, without any manifest thoracic symptoms durino- life. The digestive organs have been next most frequently diseased. Dupuytren and Segalas have observed a more vascular state than natural of the digestive mucous surface, but without any organic change of the stomach, or intestines, beyond dilatation of the former, and of the duodenum. Rutherford and Baillie always found the stomach healthy. The liier is more frequently diseased. Mead states that it was always altered in structure ; whilst Cullen, Frank, arid Home, generally observed it natural. Cawley and Hecker have commonly detected organic change of this viscus. The spleen and puncreus have seldom presented any lesion. MicHAicLis, Conradi, and Hecker, detected chyle imperfectly mixed with the blood in the large vessels and cavities of the heart ; and the same ^authors, and JNIahsh all, remarked a cho- colate appearance of the blood in all the vessels. Dr. Rutherford states that the blood was black and fluid in all the cases he inspected. In the cases I have seen examined, the mucous surface of the stomach, and of the upper parts of the small intestines, was rugous and vascular. The lungs were congested or hepatised, or tuber- culated and excavated, or their pleuras adherent. The heart was flaccid, soft, and small ; tiie blood dark and semi-fluid ; the kidneys congested with dark blood, and somewhat large; the super-renal capsules somewhat indurated ; and the renal ganglia more than usually large. But these changes are not uniformly observed ; several of them were wanting ; and in one or two instances, no decidedly morbid change was detected, beyond the absence of the usual cadaverous and peculiar odour generally perceived upon opening the ca- vities. Upon the whole, therefore, post mortem research has thrown but little ligiit on the nature of diabetes, further than showing that it is the result of a morbid condition of several, if not all, of the digestive, assimilating, and excreting vis- cera, and not cf any one of them. 13. II. Prognosis and Diagnosis. — A. Al- though patients whose constitutional powers are not greatly reduced, may sometimes live for many years, under judicious treatment, in this disease, yet should the prognosis be upon the whole very unfavourable : a cure may, however, be effected 510 by appropriate means adopted early ; but this result is comparatively rare, and should never be considered as perfect, unless the healthy quality, as well as quantity, of tlie urine be altogether recovered, and the strength and bulk of tlie body be restored. Partial, or even very great, relief is often afforded ; but the malady after a while re- turns, and may proceed without admitting of relief to a fatal issue, or be again and again checked by treatment. INIuch depends upon the patients .themselves, and tlie strictness with which the prescribeil regimen is followed ; for, as the disease often originates in excesses, a return to them upon partial, or tolerable, recovery, will bring back the disease. When we find it complicated, as it most commonly is, with organic disease of the lungs, liver, or lymphatic system, a favourable issue cannot be expected. Out of from twelve to fifteen cases I have treated, I know of two only at the present time that have perfectly re- covered. One of these, a married woman, who had previously been attended by an eminent writer on the disease, has continued perfectly well for six or seven years ; but although not yet thirty-five, the catamenia, which had disappeared before the development of diabetes, has not re- turned. The chances may, perhaps, be estimated at about five or six, or even higher, against the patient ; but much will depend upon the quan- tity and quality of the urine, the progress of the disease, the age, visceral complications, constitu- tional powers, the state. and functions of the skin, the degree of emaciation, and circumstances and character of the patient. I believe that the prog- nosis should be much more unfavourable where the urine is mellitic, than when it is not so changed, however abundant it may be. 14. B. 'J'he Diagnosis of diabetes mellitus is very readily formed from the sensible properties of the urine. (See ihe Siimptoms, j 4. ; and art. Urine.) 15. ill. Cahsls — ^1. Predisposing. Here- ditary predisposition to tins disease has been re- marked by several autliors. Ur. PnouT has observed it in (four instances. Isenfi.amm states that he knew of seven of the descendants of a diabetic patient, wlio died of the malady, INIon- TON, i5ni3IlAi'F,, Koi.Lf), Hn'MENBACn, FitANK, STOnEJi, and Clarke, also furnish similar facts. Diabetes is more frequently met with in the male, than in the female sex ; and in persons who either are past the period of puberily, or are advanced in years. The true diabetes mellitus is rare in children, whilst alhuminous urine and enuresis are frequent complaints in tliem. It is much more common in cold and moist countries, par- ticularly those in whicii the inhabitants live chiefly on rye, or any other vegetable food, or ar»the nature of the predisposing and exciting causes ; and this state of organic nervous energy may not only give rise to an excess of this matter, but may also prevent the due assimilation of it, and of the chyle which contains it ; the unassiniilated matters either re- taining, or still further assuming, the mellilic com- bination in the course of the circulation, and in their passage through the kidneys. But what- ever disorder of these organs may exist is only consecutive upon, or increased by, the saccharine matter in the blood, and which obviously ex- cites them to increased action. That a morbid slate of organic nervous influence thioughout the digestive and assimilating organs and tissues, and of the blood, exists in this disease, is shown by its principal phenomena, and liy the fact that diffusive inflammation followed bleeding in two instances recorded by Dr. Duncan. 23. IV.Treatmknt. — The means of cure em- ployed in this disease have been varied exceed- ingly, according to the opinions entertained re- .specting its nature. Many remedies have also been resorted to empirically, without reference either to their mode of operation, or to the presume'd pa- thology of the malady.' As it will bg useful ta the practitioner, I will first exhibit a succinct view of the difl^erent modes of treatment, which liave been recommended, venturing such remarks as my experience enables me to suggest ; and, afterwards I shall proceed to state the plan which has seemed most successful in my practice. 24. i. View of the Treatment proposed bii Authors. — In estimating the degree of success which' writers state they have derived from various re- medies, it should be kept in recollection that other morbid states of the urine, besides that which is characterised by the presence of saccharine matter, particularly those consisting of excess of albu- men and urea in, conjoined with augmented discharge of, the urine, have been considered as constituting a variety of diabetes, — the diabetes insipidus; and that, owing to this circumstance, many of the methods of treatment, which have been stated to have cured diabetes, have been successful only so far as respects a less difficult and dangerous form of disease, and one which is frequently no closer related to true diabetes than as respects the increased quantity of the urinary secretion. 25. A. Astringents have been recommended by inany writers, and various remedies belonging to this class have received approbation, 'i'he greater number of the mineral, and some of the vegetable acids have been used, either alone or in combin- ation with other medicines. — a. Gilby, Earni^st, Scott, and Brer a h-;ve employed nitricacid, some- times with much benefit. Brera recommends the internal use of this acid to be conjoined with mercurial inunction. 1 have given it combined with opium, the patient at the same time using the Vol. I. warm bath and animal diet. Some advantage was derived from this treatment for a considerable time ; but the disease returned, I have likewise conjoined the nitric with the Inidrocliloric acid, in equal quantities, and employed it internally com- bined with opium, and externally in the form of the nitrn liijdroclduric lotion applied warm over the epiga>tiium and loins. This has certainly ap- peared a very beneficial treatment; but as it was not confided to alone, but conjoined with other means which I shall adduce in the sequel, it is difficult to determine the degree of benefit derived from it. 26. B. The phosphoric acid, both alone, and in combination .with, or neutralised "by, other sub- stances, has been recommended by Nicolas, Guedevit.le, Latham, Sharkey, and Venables. Dr. Sharkev speaks favourably of the phosphate of soda. It has tjie advantage of preserving a free state of. the bowels, whilst it tends in a very marked manner, to diminish the flow of urine ; but I believe that more advantage will be derived from it, as well as from the phosphate of iron, which has been strenuously recommended by Dr. Aexables, in the excessive discharge of albumin- ous urine, — an affection frequently observed in young-subjects, — tlian in the disease under con- sideration. 27. y. The sulphuric acid and its salts have re- ceived the sanction of numerous writers, who have generally prescribed them in combination with preparations of chinchona, aromatics, opium, &c. I liave exhibited the acid with the-sulphate of zinc, and with the sulphate of quinine, as one part of the treatment adopted in the cases which have oc- curred to me ; and, as from a large, proportion of the means employed, benefit was derived from it for some time. The sulplutte of alumina hsLsheen prescribed in a variety of forms, but most fre- quently dissolved m whey, by Dover, Brocklesby, H-EHz, LiN'DT, and many others. But its want of efficacy has been satisfactorily shown by Brisbane, OosjERDYK, and Frank; the last of whom car- ried the use of it to a large extent, in order to test its effects. Dr. Wintringiiam applied the suU phate of alumina, dissolved in vinegar, as an epithem on the loins. The s}dphate of iron and the bi-sulphate of potash have likewise been em- ployed in this disease. The latter of these pos- sesses the advantage of acting as a deobstruent aperient, and is hence often of much service. Dr. Fraser entertains a favourable opinion of the former. 28. J. Several other astringents, as sumach, kino, catechu, in the form both of tincture and de- coction,/fHie-uafec, &c., have been recommended ; but they seern to have been of no further service than auxiliaries to other means. The aqua calcis, used as common ilrink, either alone or with milk, has been praised by Willis, Schutz, Jarrold, Fothergill, Watt, and Frank. Although as- tringents have been very generally employed, some doubts have been thrown upon their utility by Amatus Lush am s, and others. Sydenham, however, expresses himself favourably respecting them when conjoined with aromatics and opiates, — a mode of exhibiting them which is certainly the most preferable, and the only way in which I have employed those now enumerated (§ 42.) in this disease. 29. B, Tonic astrins^ents have received much ' LI 514 DIABETES — TREATMENt. attention, particularly from Stoeller, pEnuiAn, Morton, Fahxer, Frank, and others. Amongst those, cinchona, in decoction with the elixir of vitriol or with simarouha, or in powder with the MOrt ursi, in doses of a scruple, or half a drachm of each, with half a grain or a grain of opium, and repealed every four or five hours; and the preparations of iron, either alone or with cinchona or cascarilla, deserve a particular notice. Dr. Prout has seen full doses of the carbonate of iron, with Dover's powder, have the best effects. Tonics, with catechu, kino, &c.,and the vegetable bitters, as well as the mineral tonics, in conjunc- tion with opium, have severally been employed, particularly by Shee, Abrahamson, Roeber, &c. Under tliis head I may notice the use of astringent wine, as having been recommended by Celsus, and, in modern times, by Willis and Morton. Dr. Peacock advises a powder, con- sisting of powdered nux vomica, gr. v.; preci- pitated iron 3 ]. ; prepared chalk, 5 ]■ ', powdered opium gr. j,; to be taken three times a day. (Lancet, iS'o. 707. p. 91 1.) 30. C, Diaphoretics, have been very generally recommended, and particularly by Roeber, Sto- ELLER, Wener, RI'Cormick, and IMarsh, with the view of restoring the suppressed functions of the skin, and diminishing the determination to- wards the kidneys. Amongst the various medi- cines which have beenexhibitedwith this intention, the putiis ipecacuanhcE comp. and opium with antimonials deserve a particular notice. I have prescribed these with full doses of camphor on several occasions with much benefit. This last- named substance has been much praised by Shee and Richter, who recommended it to be ex- hibited in large doses in mucilaginous emulsions. Of this class of remedies, there is certainly none more decidedly useful than the warm and vapour baths. Salzburgher, Riiter, Werner, Richter, Heineken, and Marsh justly place much reliance on them. To these may, perhaps, be added the sulphur baths; but I have had no experience of them. 'I'he promotion of a free and even copious perspiration by tiie constant use of woollen cloth- ing next the skin, and active exercise, has been noticed by several writers ; and forms a most im- portant part of the regimen to which diabetic pa- tients should be subjected. 31. D. Alvine evacuations. — a. Emetics have been employed witli advantage in some cases by Ettjiuli.er, RivERius, Brendel, Michaelis, ROLLO, W'iNTRINCiHAM, WaTT, and RiCIITER, particulaily early in the disease. It is chiefly at this period, or in subjects whose constitutions still retain some degree of vigour, that they are ad- missible, b. Purgatives have received less attention from writers on diabetes than they deserve. Trnka, however, has passed very just encomiums on fhera: and they have likewise received some notice from Dr. Marsh and a few other recent authors. I believe them to be very generally be- neficial, not only in as far as their occasional exhibition may remove morbid accumulations, and obviate constipation, which is so frequently an at- tendant on the disease, but also as regards a con- tinued and decided use of tiiem, so as daily to procure two or three copious evacuations. With tliia view, full doses of rhubarb, or of the iuj'usion »/ nentia, with compound infusion of gentian, or of the phosphas soda-, should be exhibited daily. There are few remedies that deserve a more favourable notice in diabetes than rhubarb. It received the warm approbation of Baglivi and Lister, who recommended it in conjunction with aromatics, and of Brocklesby, Morton, Buch- WALD, and Harris. Dr. Baillie prescribed it with laudanum. I have employed it frequently as an aperient, both in powder and infusion ; and combined it with vegetable tonics, aromatics, and opium, with the intention of promoting the di- gestive and assimilating powers. It is one of the best medicines that can be used in this disease. Frequent and full doses of magnesia have been praised by Trotter, Hufeland, B. Phillips, and R. Willis, not merely as an aperient, but on account of its effects in counteracting the dis- position of the digestive organs to form sugar. 32. E. — a. Sulphur and the alkaline siJphurets have received a deservedly favourable notice from Autenreitii, Redfearn, Bang, Rollo, and MiCHAiiLis. The hepatised ammonia was par- ticularly noticed by Dr. Rollo, with the view of furnishing to the system, along with a liberal animal diet, the elements which seemed to be wanting to the chyle and to the urinary secretion. The free use of sulphur, so as to produce an aperient eflect, is often beneficial. I have seen much advantage derived from it ; and the sulphu- rets are often serviceable as adjuvants to the general plan of treatment. Dr. Christie, men- tions them with approbation in his interesting de- tails of cases treated bj' him in Ceylon. — b. Can- tharides, either in the form of powder or tincture, exhibited alone or combined with camphor, have received a favourable notice from Morgan, Wer- ner, Herz, Stoeller, &c. W^olfe combined them with ciiichona : but Brisbane, Busch, and Frank derived no advantage from them. 33. F. Opium, either in substance or tincture, alone, or combined with tonics and aromatics, or with astringents or with diaphoretics, with cam- phor, valerian, or with assafcetida, or even with the sulpliurets, according to the varying features of particular cases, is, perhaps, the most generally applicable and beneficial remedy that has been employed. But it should be given in large doses, and its use persisted in, and so managed as not to prevent a free and continued action on the bowels. If the dosebe suflRciently large.it will seldom con- stipate the bowels in this disease, or impede the action of purgatives and aperients ; and it will determine more sensibly to the skin, while it will more decidedly diminish the urinary flux than when prescribed in small doses. It is chiefly to Archioenes, Sydenham, Buckwald, and Warren, and afterwards to Guedeville, Heine- ken, Money', IMarsh, Carter, and others, that we are indebted for proofs of the great advantage to be derived from this medicine in diabetes. 34. G. — a. Mercurial iintnction has been recom- mended by ScoiT, Lubbock, and others. Brera prescribed it at the same time with the internal use of nitric acid; and Frank, with tonics: he even advised it to be carried so far as to produce salivation. When diabetes is complicated with hepatic disease, this treatment will be requisite. I have seen it employed with some advantage, alternated with the nitro-liiidrochloric lotion ap- plied on the hypochondria and loins, in a case of this description. W hen biliary derangement exists, the occasional exhibition of a full dose of calomel ■with rliubarb, or the compound extract of colo- cynth at bed- time, and followed, in the morning, by an active purgative medicine, will be found of service. — b. Medicines that act as rf/ure/ics may be supposed to be contra-indicated in diabetes. But they are not necessarily injurious; for, if tliey have a beneficial effect on the body generally, or on the visceral disorders with which diabetes is as- sociated, they may even be of benefit ; and if the action of such medicines on the kidneys be ener- getic, they may change the morbid action induced in these organs by the disordered state of organic nervous influence and of the circulating flui(i,and in this way prove beneficial. Among the different substances that have a diuretic tffectci)[chicinn may be mentioned as having lately been sometimes pre- scribed in this disease, but chiefly on account of its sedative operation. It may be of some service in promoting the biliary secretion, in increasing the quantity ofurea and uric acid in the urine, and in diminisiiing the irritability of the frame. Its good effects, however, require confirmation, and may probably be ensured by combining it with ammonia or its preparations, or with camphor, 35. H. Nutrients in various forms have been strenuously recommended by Home, Rollo, Du- PUYTREN, Nicolas, Oswald, Frank, CiiitisTiE, and many others. Dr. Rollo particularly in- sisted upon the nearly exclusive use of animal food, with the view of resisting the secretion of saccharine matter, and furnishing the elements of urea and the animal salts to the blood. There can be no doubt that the greatest benefit has been derived from this treatment. It should, however, be admitted, that it often fails ; and that, when it is too freely indulged in, it sometimes occasions a diarrhoea, which exhausts or even carries oft' the patient. With a knowledge of these occasional effects. Dr. Prout recommends it with very judicious restrictions, and to be taken with a moderate proportion of farinaceous food ; and Frank advises, in addition to it, the decoction of Iceland moss, or of the althasa officinalis with milk. 36. /. Besides the foregoing, various other re- medies have been prescribed. The cupri ammo- nio-sulphas (in doses of half a grain to a grain twice or thrice a day), myrrh, and valerian, have received the commendations of Frank and Rich- TER. Assafa:tida has been favourably noticed by Wolff; tartar emetic combined with valerian has been directed by Richter. A combination of assafoetida with myrrh and valerian has also been very generally used by Continental pliysicians. Dr. Watt has employed the volatile alkali ; and it will certainly often prove an useful adjuvant, combined with other medicines, particularly with opium, or with tonics or diaphoretics; and be serviceable in combating such nervous or sinking symptoms, as sometimes occur in the course of the disease. It may, moreover, counteract the tendency to the formation of saccharine matter, and promote the animalisation and assimilation of the chyle, as well as tlie formation of urea. Even urea itself has been recently tried as a remedy in this disease by Segalas, but instead of changing tiie mellitic urine, it was found to increase its quantity. Hufeland, and some other physicians in Germany, have prescribed recent ox-gall, in as large doses as the stomacii will bear, and fre- quently with the effect of causing the disappear- DIABETES — Treatment. 515 ance of the sacch.arine state of the urine during its use ; the disease, however, has generally returned upon discontinuing the medicine. 37. A'. Blood- letting in diabetes has been mentioned as far back as the Commentaries of AuciiioENEs on Aetius; and it was noticed as an occasional measure by Le Fevre and Rollo. But it is to Dr. Watt, that we are indebted for the introduction of this practice in a most decided form. This physician advises full and oi'ten- repeated blood-lettings, with the view of arresting the inflammatory determination to the kidneys. This plan has been adopted by Dr. Satterly and others with manifest advantage, whilst it has failed with some. Drs. Prout and Hufeland consider it beneficial only in the early and acute stage of the disease. Dr. Marsh offers a similar opinion. And my own experience would lead me to employ it, only when the disease is recent, the strength of the patient not much exhausted, and the pulse remains of good strength and volume. When the patient feels much pain in the loins, an additional indication is thereby furnished for resorting to it. Sir David Barry has advised frequent cupping on the loins in the course of the disease, — a practice which is de- serving of adoption in cases of the above descrip- tion, or when much pain is complained of in that situation. I have found advantage from the ap- plication of a number of leeches on the epigas- trium, and cupping on the hypochondria, both in relieving the sen^e of pain and heat complained of in the stomach, and in lessening the quantity of the urine, and of the saccharine matter con- tained in it. Depletion, as Dr. Watt first ob- served, certainly improves the state of the blood, and renders the weak and imperfect crassamentum more firm. 38. L. Blisters and external applications of a derivative and irritating nature have been recom- mended by Ritter, Dfsaut.t, Van Swieten, Whytt, and Reidlin, to be applied chiefly to the loins and epigastrium. Frank and Weiz advise repeated blistering of the sacrum. Seions, issues, and moias have likewise been employed in the latter situation ; but 'I believe without any permanent benefit. The most eflficacious modes of derivation are the vapour bath, warm alkaline baths, and thick woollen clothing worn next the skin. Topical applications of a tonic and an astringent nature have also been directed to be kept constantly applied to the loins by AViiytt, Rlidlin, and Van Swieten. Of these, how- ever, I have had no expeiience. 1 have, how- ever, prescribed liniments to this situation, as well as to the epigastrium, generally composed as follows : — No. 165. B I^ininienti Camphorae Comp, Olei Tere- binth., Linimenti Saponis Cornp., aa 3 j.; Pulv. Opii Piiri 5j. ; Pulv. Capsici Anniii 3ss. ; 0!pi Limonis V\ xxx. M. Fiat Linimentum, cura quo assidue illinantur rpgio lumbalis et spina dorsi, mane nocteque. I have found this application extremely useful in the excessive discharge of albuminous urine, which is not infrecjuently met with in young sub- jects. I have likewise employed it witii other means in the mellitic state of urine ; but it was difficult to determine what share of the temporary benefit derived was owing to it. 39. ii. The Treatment in u'hich the Author is most disposed to confide. — It is not easy to fo:m LI 2 516 DIABETES - to ourselves precise and rational indications of cure in this disease, particularly as opinions re- specting its nature are not supported by a suffi- cient number of accurately recorded facts ; nor are those which have been observed so constantly present, or so uniformly grouped, as to permit us to draw indisputable pathological inferences, for tlie basis of therapeutical indications. I shall therefore state succinctly the method of cure, which is sanctioned by my own observation, and by experienced physicians. The remark which has been made by Dr. Paur, Dr. Prout, and others, tiiat this disease should be viewed in a two-fold light — namely, 1st, as respects its sac- charine state independently of the increase of its quantity; and, 2d, as regards this state in con- nection with an augmented secretion — should be kept constantly in recollection ; and, although the discharge of an increased quantity of urine, in addition to its saccharine condition, generally in- dicates either a more advanced or a more severe state of disease, yet we should be aware that the saccharine change is the more important of the two ; and that it is much more easy to diminish the quantity than to improve tlie quality of this secretion. Dr. Prout justly remarks, tliat it is exceedingly doubtful if there be any remedy that exerts a specific action in improving the quality of the urme — at least, there is none at present known. The improvement can therefore be at- tempted only by those agents that have a ten- dency — • 1st, To remove the morbid affection of the stomach; 2nd, To restore the general health and assimilative energies of the frame; and 3rd, To diminish the (juantitij of the secretion. 40. These ends are generally all that we can reach ; and, by attaining them, we sometimes advance still further, and thereby improve the quality also of the discharge. There are, how- ever, other subordinate objects, which, although they might be accomplished with the fulfilment of the chief ends now proposed, yet often require an immediate regard ; and the more especially as their attainment very frequently promotes the chief intentions of treatment. These are, — a. To remove a congested, loaded, or oppressed slate of the vascular system, and reduce the quantity of the circulating fluid more nearly to a level with the amount of vital power and assimilative function. — b. To promote and improve the secre- tions employed in digestion, and excite the ex- halations and secretions from the respiratory and intestinal surfaces. — c. To remove the unper- spirable and harsh state of the cutaneous suriace, to increase perspiration ; and thereby to lessen the determination to the kidneys. — d. To di- minish the morbid sensibility and irritability of the frame, with the other morbid phenomena allied lo them. 'J"he means which we employ in attaining lG. R Extr. Colocynth. Co. 5ss.; Pulv. Ipcc.i- cuaiiha.' gr. iij. ; .Saponis Castil. gr. viij. ; Olei Crotonis TigliiTllij. M. Fiant Pilulae xrj. C.ipiat duas statim, ct rcpctantur binse quarts quaque liora donee plend de- jicorit alvus. The bowels being freely evacuated by the above means, assisted in more obstinate cases by ene- mata, of which I believe those with from one to two ounces of turpentine to be the most efficacious, a full dose of o|)ium with camjjhor should be ex- hibited, or of the jiulvis ijiecacuanlui; compositus, or the Ibllowing : — No. Ui7. IV Camiilior.T; rasa; gr. v. ; I'ulv. Ipecacuanha; gr. j. ; I'ulv. Opii gr. ij. ; Pulv. Myrrlia; gr. vj. ; Mucil.ig. Acacia', vel Conserv. Itosar., q. s. ut fiat Bolus, statim siuiiendus. After having taken this, the patient may liave re- course either to a warm or to a vapour bath, have the surface always well rubbed witli tlie lle-h- brush on leaving it, and clotlie himself in a warm dress, with flannel next the whole of the skin. The opium, or the Dover's powder, or the bolus above directed, and the warm bath, may be re- peated at intervals, varying according to the cir- cumstances of the case. Tlie effect of this treat- ment is manifested in the state of the skin, and urine, as well as in the feelings of the patient. But, in cases characterised by much debility and irritability, we must vary the means. Here the sulphate or ammonio-tartrite of iron, or the sul- pliate of zinc, or the sulphate of quinine, com- bined witli opium and capsicum or camjjhor, and exhibited either in the form of pill or of draught, will often prove of advantage. No. 1C8. B TnfusiRosar. Co. 3jss. ; Quininae Sulphatis gr. ij. ; Zincl Sulphatis gr. ss. adj. ; Acidi Sulph. Aroni. Ill XX. ; Tinct. Opii tllxx. — xxx. ; Tine. Aurantii Co. 3j. ; Tinct. Capsicinixx. M. Fiat Haustus, ter qua- terve in die capiendus. In cases of the same description, Dr. Prout re- commends an electuary with the ferrl sesqui- onidum, and opium, and alhiunen ovi. I have given the sesquioxide of iron in the form of electuary, with confection of senna, Ccc. (see F. 79. 86. 93.), in order to preserve a freely open state of the bowels. The combination of tonics and astrin- gents, or even of astringents with aperients, is sometimes useful. I have obtained advantage from the following : — No. 109. R Pulv. Cinchona?, Pulv. Rhei, aa .3 ss. ; Wagnes. Carbon. 3 j. ; Mist. Camphorie 5jss. ; Confect. Arom. gr. x. M. Fiat Haustus, bis in diesumendus. — J'el, No. 170. R Pulv. Rhei, Pulv. I'va Ursi, aa 3jss. ; Aquse Cinnamom. 5jss.; Confect. Aromat. gr. xij. M. Fiat Haustus, bis terve quotidie sumendus. The above may also be taken with a full dose of laudanum, when the bowels have been sufficiently acted upon, and the irritability of the system is considerable. In order to counteract this symp- tom, I have on some occasions had recour.-e to the hydrociianic acid in doses of from one to three minims, in a mucilaginous mixture, or employed it in combination with iron or with zinc, in the state of a cyanide of iron and cyanide of zinc. The following was lately prescribed, and continued for several days, with advantage : — No. 171. R CamphorEe rasajet subactfe gr. xv. ; Oxydi Zinci 3 ss. ; terc cum Mucilag. Acaciae vel Tragacanth. Sss. ; Aquae Cinnamom. 3ivss. ; Acidi Hydrocyanici lit XV. Misce. Fiat Mist., cujus capiat cochlear, j. vel ij. larga, ter quotidie, prius agitata phiala. 43. Whilst tonics or astringents are employed, either of the kind now noticed, or of any other description, the bowels ouglit to be kept ojien, not less than two or three satisfactory evacuations being daily procured ; and this action should be main- tained perseveringly for a long time, either by purgatives given in the intervals between the ex- hibition of the tonics ; or, what is preferable, in conjunction with them, as in Form. 266., or as follows : — No. 172. R Infusi Gentianae Comp. 3j. ; Infusi .Sennae Comp. 3ss. ; Tinct. Rheijij.; Spirit. Ammon. Arom. 5f,s. M. Fiat Haustus, bis terve quotidie suftiendus. No. 17.3. B Decocti Cinchona-, Infusi Rhei, aa 3 vj. ; Tinct. Cinnamom. 3jss. ; Ammonias Sesqui-Carl.on. gr. vj. M. I'lat Haustus, bis terve quotidie sumendus. As the difficulty of preserving an open state of the DIABETES — Treatment. 51 7 bowels is great in' this disease, the (juantity of purgative ingredients in the above medicines may be increased, or otheis added, according to cir- cumstances. I have seen great benefit derived from inspissated ox-gall, in the form of pill, with rhubarb and purified extract of aloes. These pills may be taken at dinner, and repeated, if necessary, at bed-time. Care should always be taken never to employ saline medicines as purg- ative-, excepting the phosphates in large doses, which are sometimes of service. Even calomel should be avoided, unless conjoined with cam- phor and opium, or when we find it requisite to act decidedly on the biliary secretions, and then a single full dose of it may be given. If the biliary organs require deob.'truent remedies, tlie hiidrar- gyrtim cinn creta is the most suitable preparation in this malady ; or the internal or external use of the nitro-muriatic acids (§ 34.), or mercurial in- unction. I have seen benefit derived from iodine, ioduret of iron, and nu.r vomica or strychnia, in several cases of diuresis, but I have had no expe- rience of them in diabetes. Creasote, soon alter its discovery in Gfrmany, was tried with benefit in this disease ; and very soon afterwards it was employed in a case which I saw with Dr. Roscoe. Some advantage was derived from it in this and in another case ; but the inspissated ox-gall, as pre- scribed above, was equally beneficial with it. 44. In addition to the foregoing, and (Contem- poraneously with the use of purgatives, diaphore- tics, opiates, &c., external irritation, and deriva- tion may be resorted to. For this purpose, repealed vesication on the loins or epigastrium, or the excitement of artificial eruptions on these parts by croton oil rubbed upon them, seem to be the preferable means. But, to be productive of any service, the external irritation should be kept up for a very considerable time, or frequently repeated. If the above measures fail, wemust have recourse to such of the other medicines as have been noticed (§ 24 — 38.), as may seem most appropriate to the person under treatment ; and we .should not be content with trying the various remedies in suc- cession ; but so associate, and contemporaneously prescribe them, as to bring their combined action to bear upon the morbid conditions which seem to exist in particular cases. 45. Whilst these means are being employed, the diet and regimen of the patient should be re- gulated, and consist chiefly of animal food, with a small proportion of farinaceous substances. He should abstain from vegetables, particularly those which are s\^ eet and acescent, and from fruits. Ani- mal and farinaceous food are much more easily digested and assimilated than the more bulky ve- getables ; and, partly on this account, are more suitable to the patient. For, although the de- mand for food is urgent, owing to the call made upon the digestive organs to supply the waste arising from the nature of the discharge and to the erethismal state of their mucous surface, yet the digestive and assimilative energies of the frame are defective, and insufficient for those articles which require much change to be effecteil in them during the process. Beside, animal food furnishes fewer of the constituents of saccharine matter. Jluch attention should also be paid to tli-j quantity as well as the quality of both the solid and fluid ingesta. Dr. Phout has very judiciously remarked, that the constant and press- L 1 3 518 ing desire for food generally induces the patient to take by far loo mucli at one time, the conse- quences of vvliich are not only unfavournble to his recovery, but sometimes dangerous and even fatal : and he refers the greater number of sud- den deaths, vvliich is not an infrequent termination of this disease, to errors either in the quality or quantity of the food, or to both, the patient having been frequently cut off after what is commonly called a hearty meal. The diet, therefore, as to its quantity and description, should be strictly re- gulated by the physician, be chiefly of a solid form, and not taken at longer intervals than four or five, nor at shorter than three, hours. The pa- tient ought also to abstain, to the utmost of his power, from all drink for an hour or two after his meal. Animal food ought not to be taken oftener than twice in the day ; and beef-steaks or mutton chops, under-done and plainly cooked, are per- haps the preferable kind. The other meals may consist of any of the farinaceous articles with milk, or occasionally of eggs. 46. The drink also should receive particular attention. Dr. Prout expresses himself favour- able to the use of distilled water. Of this, how- ever, I have had no experience. Lime water, either alone or with milk, alum whey, and the Bristol Hotwell and Bath waters, have been long celebrated in this disease, and are certainly amongst the most quenching drinks that can be employed in it. 1 have prescribed the mineral acids, and particularly the nitric and hydiochloric acids, with seeming advantage. In a case which lately occurred to me, I employed a weak solu- tion of the boracic acid, and afterwards of the biborate of soda, with much benefit. In another case, however, this did not seem to agree, and in that obvious advantage was derived from the use of tar-water. In order that the patient may not be induced to drink too largely, the beverages pre- scribed should be taken in a tepid state, and his resolution be fortified against the seduction of his appetites. In addition to this diet and regimen, he should remove to a dry and warm situation, should constantly wear woollen next his skin, and keep up a free cutaneous discharge by suitable exercise. Even when he is convalescent, or ap- parently recovered, this regimen ought not to be abandoned; and the bowels should be constantly kept open by the tonic aperients already recom- mended, or by an electuary composed of sulphur, magnesia, and confection of senna. Sulphur, in full and frequent doses, is one of the best re- medies we can resort to either in the disease or during recovery, as it acts both on the bowels and bkin. Errors in diet, or in the use of beverages, and even a single irregularity as to fruit and vegetables, will liazard a return of the disease. 47. iii. Treatment in the dark-ikinned varieties of the species. — I have had occasion to see two cases of this disease in negroes ; and Dr.CmusTiE has given the particulars of ten or twelve cases which he treated among the natives of Ceylon. In all his cases, as well as in mine, the disease was evidently owing to a very poor vegetable diet, and a moist i^tate of tiie air. Dr. C.'s cases terminated favourably, from the use of animal food, the sulphurct of potassium, lime water, and purgatives. 'J'he cases which occurred to me were treated with tonics, purgatives, the warm bath, and diaphoretics and narcotics : they derived DIABETES — Tbeatment, some benefit, but circumstances occurred which prevented me from knowing the ultimate results. BiBLioG. AND Refer. — Ga/f.'j, De Locis Affect. 1. vi. cap. 3. ; De Crisibiis, 1. i. cap. xii Celsus, 1. iv. cap. 20. — Archigenes, in A'etius's Tetrab. iii. serm. iii. cap. 1. — Oribasms, Synops. 1. ix. cap. 3-5, 36. — Alexander Trnl- lianus, 1. iii. cap. 41. — Baillou, Opera, vol. ii. p. 254., vol. iv. p. 244 — Zacuius Lusitanns, Prax. Admir. Amst. 1641, 1. ii. obs. 71. — Aniaius Lusitanus, cent. ii. cur. 94., et cent. v. cur. 33. — Willis, Pharmaceut. Rat. sect. iv. c. 3. Si/dcn/ia>n, Epist. Resp. i. Const. Arm. 167-'>. ; Opera, p. 'ASS. — Lisler, Exercit. de Diabete. .S;grot. 2, 3. 4. 7.— Morton, Phthisiologia, 1. i. cap. 8. Amst. 1675 Bonet, Sepulchretum, 1. iii. sect. xxvi. — Ruysch, Observat. Anatoni. Chir. No. 13. — Baglivi, Opera, p. 717. — Mor- gagni, De Sed.et Cans, epist. xli. art. 2. 15. — Blackmore, On the Dropsy and Diabetes, 8vo. Lond. 1727. — Ricdiin, Linear. Med. p. 948. — Chtselden, Anatomy, Svo. p. 130. — I.c Fevre, Opera, 4to. 1737, p. 134. — Harris, Observ. de Morbis aliquot Gravioribus, ob. 3, 4. — BuchwuUl, De Diabct. Cur. cumprimis per Rhabarb. Ilafn. 1733. — Mead, On Poisons, 8vo. Lond. 1743. — Kruzenslein, Theoria Fluxus Diabetici. Halte, 1746. — Dover, Le- gacy, &c. p. 33. — Stedman, in Edin. Med. Essays, vol. ii. p. 4S — Oosterdi/k, Samml. Auserl. AbhaiuU. fiir Pract. &c. b. i. p. 179 Brocklesby, in Med. Observ. and En- quiries, vol. iii. art. 26 Dobson, in Ibid. vol. v. art. 27 Brisbane, Select Cases, Sec. 8vo. Lond. 1772. — Isenflar)im, Versuch einiger Anmerkung. die Eingewcide, &'c. Erl. 1784. — Bnchetoni,mCom'ment. Bonon. t. ii. parsl. p. 218. — Caii'ley, in I,ond. Med. Journ. vol. ix — M' Cormick, Edin. Med. Comment, vol. ix. p. 349. — Cruickshanks, On the Lacteals and Lymphatics, p. 69. — J. P. Frank, De Curand. Hom. Morbis, t. v. p. 39. Man. 1792. ; et Interpret. Clinic, vol. i. p. 347. — Baillic, Trans, of Soc. for Improvement of Medical Knowledge, vol. ii. art. 5 Lalham, Facts and Opinions concerning Diabetes, 8vo. Lond. 1811 iJfS«epac-(raj, I separate). — SvN. 'Tml^aifA.e., Aristotle. Aiaiiiiilion. — The course and progress of this disease are generally acute. If it t(trniinate not in resolution within a few days, it produces cither adhesion to the adjoining viscera, Treatment of Inflammation of. or disorganisation, followed rapidly by death. When adhesions form, signs of chronic disease of this and the adjoining viscera continue after the subsidence of the acute symptoms ; but when dis- organisation and gangrene supervene, the patient experiences, after a very few days, a sense of suffo- cation, sinking, with singultus, extreme frequency and smallness of pulse, faintings, &c., speedily followed by dissolution. 12. D. The morbid Appearances most fre- quently found after diaphragmitis are, effusions of coagulable lymph, or of sero-albuminous fluid, or of both, on either of the surfaces of the organ, ge- nerally with adhesions, more or less extensive, to the adjoining viscera ; increased redness and vas- cularity, or deepness of colour, of one or more of the different structures composing the organ ; false membranes upon its surfaces ; portions of it ulce- rated, or of a dark colour, softened, and nearly disorganised ; and, more rarely, sphacelated in parts, infiltrated with pus, or containing one or more distinct purulent collections. 13. iv. Prognosis. — Recovery from this ma- lady should be considered as very doubtful, until we have very unequivocal symptoms of resolution, without any sign of the extension cf disease to the organs situated on eitlier side of the diaphragm. — o. The circumstance of diaphragmitis arising from external injury, or the extension of inflammation from the pleura and pericardium ; the early acces- sion of urgent anxiety, followed by delirium ; sin- gultus, and sobbing ; depressed, collapsed, and anxious countenance, with spasms of the muscles of the face ; irregularity, intermission, and small- ness of pulse ; coldness of the extremities ; leipo- thymia ; difticult deglutition ; frequent and irrita- ble vomiting, and restlessness; absence of thirst; convulsions ; convulsive, frequent, and laborious respirations, &c. ; are very urifavourahle symptoms. — b. The subsidence of the urgent symptoms ; an improved state of the pulse, and appearance of the countenance ; the occurrence of any of the critical evacuations, or restoration of the suspended secre- tions, or a sound and refreshing sleep ; a more natural respiration, and the absence of serious disease of the collatitious viscera; are the most favourable circumstances. 14. vi. Treatment. — The intentions of cure arc the same in this as in other acute inflammations. The antiphlogistic treatment promises us the prin- cipal aid ; but to be successful, it must be em- ployed early in a decided manner. Full blood- letting from the arm, the patient being in a semi- recumbent posture, until a decided effect ensues — until syncope approaches, but is not induced — as recommended in another place (see Blood, §64.) ; afterwards cupping on the loins and back, on each side of the spine ; leeches applied near the anterior insertion of the diaphragm; purgatives; refrige- rating diaphoretics ; febrifuge diluents; external fomentations and cataplasms : tepid baths ; purga- tive, and subsequently emollient cnemata, with complete stillness and silence ; should be employed according to tiie exigencies of the case. The practitioner ought not to be deceived by the pre- sence of singultus, and the great depression of the powers of life so frequently attendant on the dis- ease ; and thus be led to the exhibition of antispas- modics and stimulants, when opposite measures are requisite. l\'or should he be mduced by the state of the stomach, and of the matters discharged from DIAPHRAGM— Organic Lesions — Spasmodic Actions of. 521 it, to exhibit emetics. When vomiting is present, it sliould be allayed ; and, for this purpose, as well as to prevent the formation of coagulable lympii and adhesion between the surfaces of the organ and the adjoining viscera, large doses of calomel and opium — from ten to twenty grains of the former, and from one to three of the latter, either witli or without from one to three grains of cumpluu- — should be exhibited, and repeated at intervals of six or seven hours ; the first dose being given im- mediately after the first blood-letting. The danger of the disease requires prompt and powerful agents ; and, after depletions, the combination of calomel, opium, and camphor, is particularly serviceable. 15. Wlien the disease is associated with inflam- mation in the adjoining viscera, the calou)el should be carried so far as to affect the mouth ; and if the pleura or pericardium be also diseased, antimonials and diuretics ought to be added. If the convex or posterior parts of the liver and peritoneum be also inflamed, the use of mercurials are also re- quired, and \vith nearly the same intentions, viz. to prevent adhesions, and procure the absorption of effused fluids. If the disease be associated with rheumatism or ^'I'lif, then, after local depletions, active mercurial cathartics, and derivatives applied to the joints, colchicum, with large doses of soda or potash, or with magnesia, aminonia, or camphor, may be exhibited. 16. It often happens, that after the inflammation in this organ and its collatitious viscera is sub- dued, considerable irritability, evinced by the occurrence of singultus upon taking substances into the stomach, continues for some time. To remove this, the use of gentle tonics, combined with anodynes and antispasmodics, as the infu- sion of calumba, with opium, carbonate of soda, hyoscyamus, or camphor, is generally re- quired, or of the Infusion of valerian, or of the oxide of zinc, or the tris-nitrate of bismuth, or musk, &c. Convalescence, and the regimen of the patient are to be managed precisely as in other inflammatory diseases. 17. II. Diaphragm, Obganic Lesions of. — i. Perforation of the diaphragm is not an un- common consequence of abscess of the liver, pointing up towards the thorax. In the great majority of such cases, adhesion of the adjoining surfaces of the liver and diaphragm has preceded the perforation ; and when this has been accom- plished by the disorganising process following the inflammation excited in the diaphragm, the con- tents of the abscess pass either into tiie cavity of the thorax, or adhesion of the inflamed diaphragm to the lungs having also taken place, into the lungs, whence it may be expectorated, and the patient even recover. (See Livfr — Abscess of the.) Instances have even occurred of the ab- scess having thus traversed the diaphragm, and opened into the pericardium. 18. Perforation of the diaphragm has likewise taken place from abscess of the spleen, and from ulcerations of the stomach, which had adhered to the diaphragm. It has very seldom been ob- served that the perforation of this organ has oc- curred in an opposite direction, namely, from the thorax downward*!. But Portal (Anat. J\Ied.) met with a case in which an imposthume of the lungs opened through the diaphragm, and burst into the abdominal cavity. The diaphragm may likewise be perforated in this direction by aneurism of the aorta. Meckel also found K/cejvifio/i of the diaphragm, apparently resulting from chronic in- flammation, in the dissection of a maniacal patient. 19. ii. Rupture of the diaphragm sometimes occurs from falls ; violent succussions of the trunk ; vomiting, or severe retchings ; blows on the abdomen, back, hypochondrium, or epigas- trium ; suppressed efforts, and sudden muscular exertions. M. Percy states, that a young female, suppressing the pains of child-birth, uttered a plaintive cry, had her mouth hideously distorted, and shortly afterwards expired, giving birth to a child. On dissection, the diaphragm was torn obliquely in the fleshy part of the left side. Two thirds of the stoinach, with a portion of the omen- tum and colon, had passed through the rupture into the thorax. On another occasion, M. Percy found, after a fall, the ribs of the patient very prominent ; the abdomen, at its upper part, sunk inwards; and the countenance presenting the risus sardonicus. He prognosticated a rupture of the diaphragm which was found after death. (Percy, Vict, des Scien. Mtd. t. ix, p. 214.) Rupture of the diaphragm is not necessarily immediately fatal. BoissEAu (Nosog. Organ, t.u. ^.623.) mentions a case where a patient lived six months, and fol- lowed his occupations, after the occuirence. A per- son having taken an emetic, died soon afterwards with convulsions, the cynic spasm of the muscles of the face, &;c. On examination, the tendinous part of the diaphragm was found torn near the part where the intercostal nerve passes through it. 20. iii. Various INIorbid Productions have been found more or less intimately connected with the diaphragm, in persons who had expe- rienced disorder of the respiratory function. These have consisted of tumours of various descriptions, encysted or unencysted ; cartilaginous or osseous Jormations, and earthy concretions in its surfaces (ScHREiBFR, Leveille, Voigtel) ; flcshy tu- mours; and large_/i7;roi(scj/5fs containing hydatids (Portal), or merely an aqueous or serous fluid. It is not infrequently found partially displaced in aneurism of the heart and aorta. Cases of this description are recorded by Vetter and Blan- card. It is also pressed high into the thorax by enlarged or suppurated liver. 21. iv. Spasmodic Actions. — The diaphragm contracts forcibly in crying, coughing, vomiting, during the expulsion of the excretions, child- birth, and tenesmus. It contracts slowly, but forcibly, and is rapidly followed by relaxation, in sighing. It contracts for a longer time, and is relaxed more quickly in yawning. The contrac- tion is more rapid, forcible, and interrupted by closure of the glottis, in hiccup, sobbing, &c.; and sneezing is owing to convulsive contraction of the diaphragm, followed soon afterwards by con- vulsive action of the expiratory muscles. In all these, the other inspiratory muscles co-operate more or less energetically. 22. The motion of the diaphragm is generally more frequent, irregular, and unequal, than na- tural in convulsive diseases, particularly when the irritation is propagated to this part, or influences the functions of theparvagum, by being extended to the top of the spinal chord, &c. This is evinced in epilepsy, hysteria, pertussis, &:c. The con- tractions of the organ are still more disordered in tetanus, they being nearly permanent about the fatal close of the disease. Death is occasioned by 522 DIARRHCEA ~ Idiopathic. this, rather than by any other circumstance ; the permanent spasm of the diaphragm and other re- spiratory muscles preventing the expulsion of the inspired air, and consequently producing a variety of asphyxy. (See art. Hiccup.) 2-i. V. Paralysis of the diaphragm is incom- patible with the duration of life, and can occur only during the last moments of existence. It may be induced by the inhalation of noxious gases into the lungs, and from virulent poisons, thus con- stituting another form of asphyxy : and it is pro- duced by injuries of the medulla oblongata, or in its vicinity, or by whatever may interrupt the functions, or injure the par vagum. I have met with a case where it followed, at a remote period, fracture by muscular action of the dentated cer- vical vertebra, as verified on dissection by Profes- sor R. QuAiN and myself. BiBLiOG. AND Refer. — Galen, De Locis Affect. 1. v. cap. 4 Bonet, Sepulch. Anat. 1. i. sec. 1. obs. 1 — Mor- ^(jgre!, Epist. vii. art. 14. — Roth, Diss.de Inflammat. Septi transversi. Lips. 174S. — Schidxe, Diss, de Paraphieni- tide. Hal. 1742. — Schneider, De Inflatn. Diaphragmatis. Witteb. 1665 Meckel, in Mem. de I'Acad. de Berlin, 1764, p. »H.—Schroe(te>; De Inflam. Diaph. Goet. 1772. Stall, Ratio Med. t. ii. p. 385. — De Haen, Ratio Med. par. i. p. 84., par. ix. p. 17 — L. A. Ebeling, Diss. de. Iii- flammatione Diaphragmitls. Goet. 1771 — G. M. Gatten- hof. Spec. Sist. Paraphrenitidis Rationera et Curationem. Held. 1791. — Isenflamm, Prakt. Aum. iiber die Mus- keln. H62. — Aaskow, in Act. Hafn. vol. i. p. 205. — Sandijort, Exercit. Acad. 1. ii. p. 88. — Portal, Anat. Medical, t. iv. p. 233. — Hempel, De Diaph. Sano et Mor. boso. Goet. 1808. —J. P. Frank, De Cur. Horn. Morb. t. ii Roy, Traite sur le Rire. Paris, 1814 — Satvicx, De Diaphragmitide. Wilna, 1819. — Ilildcnbrand, In- stitutiones Medicae, t. iii. p. 267.— J. Frank, Praxeos Med. I'rajccp. Univ. par. 2. vol. ii. sect. 2. p. 2. — Roi'sseau, Nosographie Organique, t. ii. p. 617.— Voigtels, Pathol. Anat. t.ii. p. 201. DIARRHCEA. — Syn. (Aiaffota, from happio), I flow through, J'la and pii»). Diarrheea Ca- caloria, Rheuma Ga.stros, Galen. Rheumatis- mus, Alexander of Tralles. Defluiio, CaBlius Aurelius. Aivi Fiuxus, Ventris Projiuvhun, Auct. Lat. Coins de Ventre, Devoyement, Ft. Der Durchfall, Bauchjiuss, Dnrchlaiif, Germ. Diarreo, Ital. A Purging, Looseness, &;c. Classif. — 2. Class, Nervous Diseases; 3. Order, Spasmodic Affections (Cullen). 1 . Class, Diseases of the Digestive Func- tion ; 1 . Order, Affecting the Digestive Canal (Good). 1. Defin. — Freqtient, loose orjluid alvine eva- cuations, without tormina or tenesmus. 2. Although diarrhoea may occur as an inde- pendent or unassociated complaint, yet may it supervene as an occasional or even common symp- tom, in several maladies. Dr. Cullen, whilst he admitted diarrhoea as a specific disease, yet viewed it as always symptomatic of other patho- logical states. That it is so in most cases, cannot be doubted ; but that it also is, in some instances, an idiopathic disorder, in respect both of its priniaiy manifestation, and of it independence of inflam- matory action of the intestinal mucous surface, or of disease of immediately related organs, is equally certain; and fully demonstrated by its causes and progress, — by the effects of treatment, and the appearances observed in fatal cases. 3. I. SVMPTO.MS AND VAlilF.TlES OF Dl ARRnd. A . — This disease is usually preceded by various dyspeptic symptoms, sometimes by slight nausea, frequently by uneasiness in different parts of the abdomen, by flatulence, and by pain, particularly before un evacuation takes place. In severe cases, the abdomen is somewhat distended and tender to the touch, and its temperature increased ; and occasionally the stools are preceded by much pain in the tract of the intestines, and accompanied with vomiting, or with fainting, or leipothymia; they are always without effort, but are rarely in- voluntary. Each evacuation relieves for a time the patient's uneasiness, which, however, soon returns. The discharges are usually copious, offensive, and feculent at first ; but they soon be- come more scanty, watery, or mucous — often in proportion to the frequency of the calls to evacua- tion, after each of which the patient feels more and more weakened. Their number varies from three or four, to twenty or thirty in the twenty- four hours, but they are not so often voided in the night as in the day. At the commencement of the attack, and in slight cases, the pulse is ge- nerally not materially affected ; but when vomit- ing or much griping pain is present, it is often increased in frequency. At an advanced period it is usually small, weak, and somewhat accele- rated ; the countenance being pale, the body somewhat emaciated, the strength diminished, and the skin dry and very sensible of cold. The tongue is often loaded from the commencement in the middle and at the root, and sometimes is red at the point and edges. The urine is generally scanty throughout the complaint. The evacua- tions vary remarkably as to the nature of the matters composing them, their colour, consistence, smell, and other appearances, not only in different cases, but even in the same case, at different periods. Nosologists have generally divided the disease into varieties or species, founded on the different states of the discharges. But this is not a satisfactory basis of classification, as the appear- ances of the evacuations do not depend upon de- finite pathological conditions, although furnishing important indications of the seat and state of disease. The most coiDmon of these appearances are, the feculent, which usually precedes the others; the bilious ; the mucous ; the serous ; the chylous ; or ivhite ; and the lienteric. But every practitioner must have observed that not only will these discharges present themselves during dif- ferent periods of the disease, but that two or more of them may co-exist; thus the evacuations are not infrequently, at the same time bilious, mucous, and serous ; or feculent, bilious, and mucous ; or watery and bilious, i. Idiopathic Diarrhea. — Classif. If. Class, I. Order (^Author). 4. Defin. — Copious, feculent, and frequent evacuations, sometimes preceded by griping, and unattended by fever, 5. A. Diarrhoea of Irritation. — This form of the disease comprises most of the cases denomi- nated feculent by authors, and termed D. Sier- corea by Saiivages, D. Crapuloiu, by Cullen, and D.Fusa, by Good. — (a) It is usually caused by any stimulating or irritating substance re- ceived into the stomach ; by loo great a variety or quantity of food or drink, or even by a small quantity of that which is unwholesome, or which may disagree with the patient's diathesis, or with the exi.«ting state of tl)e digestive organs; by in- digestible vegetables, particularly cucumbers, melons, salads, Sec. ; by various acid fruits, par- ticularly plums, pine-apples, &c. ; by accidities generated in the prima via, and the quality of the DIABRHCE A — Symptomatic. 523 nurse's milk ; and by dentition in infants. — (b) The symptoms in this variety are frequently nausea ; severe griping pains before eacii evacu- ation ; foul, or loaded tongue; copious feculent stools, afterwards becoming frothy, watery, or mucous, and exhaling an offensive, or sour odour; the pulse and temperature of the surface being but little affected. — (r) This form generally ceases spontaneously, owing to the evacuation of the offending substances ; and the digestive functions are soon afterwards restored, if its cause be sub- sequently avoided. It may, however, excite some of the other pathological states to which this disease has been ascribed, and be thereby pro- longed ; or it may terminate in organic change. 6. B, Diarrh(ca of ReUixation associated with Irritation ( Diarrhteaa Cibis corrtiptis, Sennert) ' — (a) may be caused by whatever relaxes tiie tone of the intestinal mucous surface, or of its vessels, by its septic influence, whilst it excites the peristaltic actions of tlie tube, as stale fish, high game, or any animal food approaching to putridity, over-ripe, or decayed fruit, stale vege- tables, &c., and putrid, stagnant, marsh, or running waters containing animal matters, or exuviffi, or vegetable substances in a state of decomposition, or of minute division or solution, &c. — (^b.) The symptoms are, copious, feculent, offensive, and, in some instances, involuntary mo- tions, becoming scanty, watery, and frothy, and preceded by borborygmi, or gurglings in the abdomen — seldom by gripings or nausea ; a na- tural or slightly foul, mucous, slimy, or clammy tongue ; diminished temperature of the surface ; and a soft, weak, or a natural, or but little accele- I'ated pulse. — (c) This variety either ceases as soon as the matters which occasioned it are ex- pelled, or it assumes more severe characters. When it has been produced by unwholesome water, and particularly if this cause continues to operate, it frequently passes into the 7nucous va- riety, or into dysentery, or into a chronic state ; and sometimes a low remittent form of fever supervenes, terminating in disease of the mucous follicles, and ulceration of the bowels, &c. ii. Symptomatic Diarrhcea. — Classif. III. Class, I. Order (Author). 7. Defin. — Frequent, and generally morbid, alvine evacuations from disease of the bowels or col- lalitioits viscera, often attended by fever. 8. A. Diarrhcea from acrid, or an increased Secretion of. Bile (the D. Biliosa, of authors). — (a) Bilious diarrhoea is a very common variety, particularly during summer and autumn, and amongst Europeans who have recently migrated to warm or intertropical countries. It also fre- quently occurs in persons who live intemperately, in respect either of eating or drinking ; and in those who are harassed by anxieties or the de- pressing passions, especially if they be of the me- lancholic temperament. It may be induced also by violent fits of anger, or other intense emotions : an aperient or purgative medicine may even ex- cite it, if the biliary organs be loaded at the time with morbid or acrid bile, and the liver be in an excited state. It appears probable that irritation of the duodenum, in the vicinity of the common duct, may be propagated to the liver and pan- creas, occasioning an increased secretion both of bile and of pancreatic fluid ; and that, whilst such irritation augments the vermicular action of the upper part of the intestinal tube, thereby accele- rating the passage of the chyme along it, the quantity or quality of the secretions poured into tiie duodenum excites the internal surface of the bowels, increasing both their secreting and con- tractile functions. — {b) 'i he evacuations in this form of diarrhoea are at first feculen*, and com- monly of a green or greenish yellow, or even bright yellow colour : they afterwards become more fluid and watery, vary in colour, and are mixed with thin feculent matter. If the diarrhoea continues, they frequently contain yellowish or greenish yellow mucus, either in large thick masses, or in thin, glairy, or gelatinous pieces, which fall to the bottom of the pan, and admit of being drawn into long filaments ; or they consist chiefly of a serous fluid, coloured by the bile, and presenting either a glairy mucus or albuminous fiocculi, evidently owing to the irritation caused by the acrid bile having been followed by in- creased vascular action in the intestinal mucous surface, and an excited state of its follicles. — (c) In this case, bilious may pass into injiammatory diarrhoea, in either of its forms, as constituting the two following varieties ; or into dysentery. 9. B. Diarrhcea from Determination to, or in- creased vascular Action in, the Intestinal Mucous Coat — Injiammatory Diarrhwa (the D, Serosa, of Sauvages,Good, &c. ; D. Aquosa, of Hoffmann). — (a) This variety is caused by whatever occa- sions a greater flux of blood to the intestinal mucous surface, and a freer exhalation and secre- tion than are natural, by obstructing these func- tions on other surfaces : as the application of cold, in any form, to the cutaneous or pulmonary surface, or to both at once ; various mental emo- tions, as anxiety, fright, surprise, &c. ; or even the slightest agitation of mind in some consti- tutions; cold acid beverages, or ices, taken when the body is overheated or perspiring ; the sup- pression of chronic eruptions, or copious or accus- tomed perspirations or discharges : the disappear- ance of abscesses, drying up of old sores, and checked menstruation or lochial discharge. — (b) The evacuations are vvatery or serous, mixed with thin feculent matter, and exhibit every shade, from a dark brownish, or. greenish brown, to a pale, greyish, or whitish colour; and they con- tain, in some cases, pieces of thick gelatinous mucus, or a thin, glairy, and stringy mucus; in others, whitish albuminous flocculi ; and, in a few instances, large membranous or albuminous shreds or flakes, moulded on the internal surface, the intestine constituting the D. Tubutaris of Dr. Good. The discharges in this variety are often preceded by sickness or vomiting ; by severe griping pains in the abdomen ; and are attended by a dry, harsh skin ; increased temperature of the trunk; a flatulent state of the bowels; a small, frequent, constricted, but soft pulse; a furred or loaded tongue, particularly towards the root, with red edges and point; ancl scanty high- coloured urine. The patient also often complains of an aching, dull pain in the abdomen, some- times increased by heavy pressure. — (c) Inflam- matory action may not exist in every case of this variety ; or it may not supervene until after simple determination of blood to, or irritation of, the mucous surface has continued for some time ; and, even when present, it does not necessarily oc- casion the diarrhoea. This variety occurring in 524 DIARRHCEA — Symptomatic. infants constitutes what is usually called the watery gripes (§ 15. )> &nd sometimes gives rise to one or more intus-susceptions ; or it passes into chronic diarrhoea, with disease of the mucous and mesenteric glands ; or into slow remittent fever, marasmus, and fatal exhaustion. 10. C. Diarrhiva from excited nr inflammatory Action of the mucous Follicles {Catarrlnts lutes- tinorum, of various authors; D. Catarrhalis, o( BOERHAAVE ; D. MuCOSO, of CULLEX, GoOD, &C. ; Ca^liaca Mucosa, Sauvages). — (a) This form generally appears in the course of functional dis- order of the digestive organs, particularly indiges- tion, hypochondriasis, costiveness, and colicky affections ; which may be viewed as predisposing to it, by favouring the accumulation of mucous sordes in the follicles and on the internal surface of the bowels ; and is excited by t4re causes already enumerated, especially those of the pre- ceding variety (^ 9.). It occurs most frequently in old persons, or in those who have suffered from chronic disorders of the digestive organs ; and in children, particularly during the period of first dentition. — (6) The stools often consist en- tirely of thin gelatinous mucus ; frequently, also, of thick mucus, and a considerable quantity of watery or serous fluid ; sometimes the mucus is mixed with this fluid and thin feculent matter, or is accompanied with small pellets of faeces ; and occasionally it has the appearance of a semi- transparent mucilage, passing into a muco- puriform matter. Tl>e consistence of the motions varies much ; and in some cases they are very offensive, but in others without any odour. In many instances they have a greenish or yel- lowish green colour ; in others, an orange or yellow tint: in a few cases, they are nearly colourless, or white, and thin, constituting the U. Alba of Hillary ; the Fluxiis Caliacus of some writers: the Album Alvi Prof uvium of Piso ; the D. Fituitosa of Sauvages ; the D. Cceliaca of Cul- LEN ; the D. Chylosa, or l^ceta, of several authors. These appearances are chiefly attribut- able to the morbid action of the mucous follicles in some part of the digestive tube, most probably in the colon : to the presence or absence of the biliary and pancreatic secretions ; and to the states of these secretions. This, as well as the preced- ing variety, may or may not be attended by fe- brile symptoms, may assume the acute character, and may pass into the chronic form, the mucus discharges in this latter case often presenting a light, whitish, or muco-puriform appearance, — (c) When mucous diarrhoea continues for some time, or becomes chronic, it occasions emaciation ; a dry, harsh, or foul skin ; and, in children, gives rise to marasmus, disease of the mesenteric glands, &c. When it becomes c/u-idu'c, the stools sotne- times assume a whitish, or mucilage-like, or grey- isli appearance, evincing the absence of bile ; or they pass into a muco-puriform state, occasionally streaked with blood ; or they contain long whitisli shreds, or threads; and consist either altogether of these matters, particularly if the disease be seated low in the large intestines, or of an ad- mixture of thin feculent matter witii them, jiar- ticuluily when the upper portions of the colon and termination of the ilinm are affected. In some cases of this forn), occurring during difficult den- tition, or after the use of calomel or mercurials, or upon the suppression of ptyalism, the stools have consisted of a thin, ropy, mucus, of a translucent hue, and have seemed to be chiefly augmented pancreatic secretion. In children especially, when mucous diarrhoea has assumed the chronic form, the evacuations often present the chylons or milky appearance just noticed, — the Chylous Diarriiaa of Dewees and others. I'his state is attributed by them to the presence of chyme, or imperfectly eloborated chyle, which the lacteals refuse to ab- sorb ; and to the absence of bile : to wl;ich causes it is very probably partly owing, as well as partly to the morbid secretions of the mucous sur- faceand follicles. ^Vhateverappearance this variety may assume, it is frequently followed by the next. 11. 1). Diarrhcea from Ulceration of the mucous Follicles — (a) occurs either consecutively of the two foregoing varieties, or in the course of several febrile or chronic diseases ; in which cases, how- ever, it is veryoften preceded by serous or mucous evacuations, or by both. But ulceration may take place without any such indication, and with- out the bowels being much, or even at all,'j re- laxed.— (6) The stools are usually muco- puriform, streaked with blood ; sometimes con- taining shreds or threads of albuminous matter ; and mixed with thin, watery faeces, paiticularly when the disease is seated in the small intestines or caecum. When the large intestines are chiefly affected, the muco-puriform discharges may con- tain little or no feculent matters ; or these matters may form distinct portions of the stools, or may con- sist of detached pellets. In some instances, the stools have been very dark, grumous, watery, and foetid ; and, occasionally, merely thin, serous, or mucous, or both, varying in colour, and more or less fecu- lent and offensive ; and yet ulceration has never- theless existed. In rarer cases, they have been quite black, grumous, and melanoid ; or resem- bling ink, probably from the admixture of blood exuded in the small intestines, and changed by the action of the secretions — whether healthy or morbid. — (c) In this variety of diarrhoea, the emaciation becomes extreme, and the skin as- sumes a dry, harsh, foul, or lurid appearance. The pulse, in its latter stages, is quick, small, and weak. Aphtha? sometimes appear on the lips and tongue ; and hectic fever, with exhaustion, prevails. 12. E.Diarrhaa icith the Discharge of unaltered Ingesia ; Lientery ('AsiEvrspia, Gr. ; Lubricitas, vel Levitas Intestinorum, Lat. ; D. Lienterica, of Cullen ; the Lienteria of Sauvages and others) — («) occurs more frequently in children, before the period of the second dentition, than at later epochs ; and it is generally the consequence or se- quela of inflammatory irritation of the digestive mucous surface, aud disease of the mesenteric glands — of the advanced stages of these patho- logical states. It i-most common during the first dentition, particularly when the canine and molar teeth are about to appear ; and, in this class of patients, as well as in adults (in which latter it is comparatively rare), it either follows dysentery, or is a concomitant of the last stages, or chronic states, of one of the preceding varieties, — com- monly of the serous or mucous — than a primary form of the disease. It is caused by the same re- mote agents which induce these its primary con- ditions ; and it evidently depends upon a similar state of increased peri'-taltic action, and deficient vital function of the stomach and duodenum, to that which obtains in the intestines ; the food DIARRHCEA being thereby propelled onwards before it has undergone the changes usually produced by these organs, and discharged from the bowels but little altered from the condition in which it passed into the stoniarii. — (h) The appetite is usually vora- cious in this variety, particularly in children, al- though the emaciation and debility may be extreme. The biliary secretion is also deficient or vitiated ; and, in some cases, it appears nearly or altogether wanting in the stools, owing rather to the weak or imperfect action of the liver, than to obstruction. — (f) It usually terminates in stupor, and death from exhaustion ; although recovery sometimes takesplace when itiseaily and judiciously treated. 13. II. Of certain Relations and Mani- festations OF DiAURiicLA. — i. The Catues of this disease have been noticed in the description of its different varieties. — (a) Diarrhoea is most frequent in childluwd, particularly during dentition and in persons of a weak constitution and lax fibre ; and in those addicted to spirituous liquors. 1 have observed a tendency to it in some families — sometimes in all the children of a family, one of the parents being possessed of the same liability. — (6) It is endemic in some places, evidently owing either to their humid, close, and miasmal situ- ation, or to an impure state of the water espe- cially in large cities or towns ; or to the nature of the food in common use. — (c) The epidemic prevalence of diarrhoea has been noticed by BAnTHOLiNus (Hist. Anat. cent. ii. his. 65.), Sydenham {Opera, p. 160. 209.), and Leich- NER (De Diarrh. quadam Epid. Erf. 1676.) ; and, in some summers and autumns, its fre- quency has been so great, within my own experience, especially in children, as to justify me in stating that it sometimes assumes this form. — ( ,..„., ,. „..,,j.^ ,„ and may proceed either fiom determination of wliicli hi; lost somucli 1)1()0(1 tli;it hcratlicclwith ailHculty. vascular exdtement to the abdominal v.sccra^]^'^:::^^;\l::Xr::;l::l^^^^ particularly the mtestmes ; or from inflammation, ' some years altcrv.aids, liad not rcturncil. ulceration, &c. of the mucous coat in some part of the canal, especially after retrocession, or re- pulsion of the eruption in tiie exanthemata ; the stools being serous, dark-coloured, with whitish flocculi or flakes, or mucous, and sometimes bilious. It is also often associated, in its chronic states, with mesenteric disease and woims. — (c) It may be critical in several febrile and inflamma- tory diseases; the discharges being bilious, homo- geneous, &c. (See Crises, § 8.) — (d) It is also frequently colliquative, or the result of ex- haustion of the constitutional powers from pro- tracted disorganising disease — as pulmonary consumption, chronic abscesses, diseased joints, hectic fever, and morbid states of the blood, caused by the absorption into it of purulent or other matters generated in any part of the body. In such cases, it more directly depends upon dis- ease affecting particularly the mucous follicles, the tone or vital cohesion of the m.ucous surface and vessels supplying it being diminished, and the evacuations being mucous or muco-puriform, or serous and grumous, or sero-puriform and partly feculent. Colliquative diarrhoea is also frequently dependent upon ulceration, apparently commencing in the follicles, and often without any evidence of antecedent inflammatory action, at least of asthenic kind. 20. IV. Duration, Termination, and Ap- pearances ON Dissection. — A, Diarrhoea, par- ticularly in its idiopathic state, is generally of short duration ; but bilious and mucous diarihcea may be much longer protracted. I have seen the former continue, in a warm climate, for several months ; and, in this country, nearly as long, sometimes with short remissions. The serous and mucous varieties often assume an acute character, in respect both of intensity and duration ; but they frequently also, particularly the latter, de- generate into the chronic form ; either retaining their specific distinctions, or assuming those of ulceration or lientery. When the disease has even been cured, there generally remains during life a liability to its return, particulai'ly when it has passed into the chronic state, and has possessed the mucous character. A slight diarrhoea may continue the greater part of life, and at last pass into dysentery.* 21. B. Diarrhoea may fei'«n"?(af) When, however, neither fiEcal nor other injurious matters are re- tained, depletions should be accompanied witli, and followed by, the internal exhibition of the nitrate of potash, with carbonate of soda, and tincture of hyoscyamus (F. 838.), or tinct. opii comp. ( F. 729.), or the paregoric elixir, in de- mulcent vehicles (F. 728. 866.) ; and if nausea be not present, with vinum ipecacuanhas. — (c) When this form of aflection arises from checked perspiration, diaphoretics, diluents, the warm bath, a warm bed, and mild, demulcent or farinaceous diet in small quantity, will gene- rally remove the disorder in a very short lime. If it be attended by any heat of skin, or accelera- tion of pulse, the liquor ammonia; acetatis, nitrate of potass, and camphor julep (F. 865. 871.), will be of much service. — (d) If the motions be frothy, or emit a sour smell, the chalk mixture with ipecacuanha and opiate, or » aromatic confection, will be requisite ; and if griping pains with tenesmus be complained of, the pulv. ipecacuanha; comp. with carb. of soda, mucilage, oleum anisi, and aqua pimentas, may be given ; or the old paregoric elixir (F. 728.) in chalk mixture, and assisted by small emollient Vol. I. and anodyne clysters. — (e) These will generally soon remove the complaint ; but when it has be- come nwre chronic, or is very severe at the outset, or is attended witii tenesmus, or seems inclined to pass into dysentery, from eight to twelve leeches, in addition to the previous depletion, should be applied close to the anus, and repeated if necessary, the medicines now recommended (.avandul Comp. 3j. ; Tinct. Opii. HI. vj. M. Fiat Haustus, quater in die sumendus. The purging ceased ; the motions became feculent, and of ahealthier colour ; the severe paroxysms of pain, and the tenderness complained of in the region of the duodenum, and ducts subsided ; and the catamenia became, after a few doses of the biborate of soda, copious and more natural. Mm 530 jDlARRHCEA — Treatment of Lientebic. follicles excited by these medicines to a more healthy action, aromatics, cretaceous powders or mixtures, and the pulvis ipecacuanhaj compositus, or small doses of opium or the paregoric elixir, may be prescribed. Care should be taken not to exhibit astringents or opiates before morbid secretions have been discharged, nor to allow the bowels to become constipated, otherwise a chronic state of the disease or dysentery may supervene. 30. (b) The chronic form of this variety usu- ally arises either from a neglected or injudiciously treated acute stage, or as a sequela of dysentery ; it is also very common in children ; and often oc- casions, as well as attends, obstructed mesenteric glands. There is no ailment, particularly when existing in children, that requires more discrimin- ation that this. If, after an attentive enquiry into the history and previous treatment of the case, as well as into its existing state, we find the abdomen hot, the skin dry and harsh, the tongue red at its edges, or its papilla3 erect, and the pulse excited but not weak, local depletions are required, and should be followed by the tepid or warm both, or by fomentations, and by moderate doses of the purgatives last recommended. As soon as the stools are improved by these means, aromatics with opiates, or absorbents, or both (F. 623. 633.), may be prescribed ; and warm clothing, with light farinaceous food, allowed. If these means be insufficient, a blister, or rube- facients, iScc. applied over the abdomen, and the hydrargyrum cum creta, with the pulvis ipecacu- anhae comp. (F. 653.), and small doses of rhubarb given night and morning, or even oftener, will be of much service. I have frequently prescribed,with the greatest benefit, in chronic cases both of this and the preceding variety, the biborate of soda, with honey, and the compound powder of traga- canth and capsicum. 31. (c) Chronic mucous diarrhcea, vfhh whitish, greyish, or mucilage-like stools, arising from the absence of bile, the imperfect absorption of the chyle, and the morbid state of the mucous secre- tion, requires low diet, consisting entirely of fari- naceous substances. At the same time, the hy- drarg. cum creta ought to be exhibited twice or thrice daily, with the carbonate of soda or potash, and minute doses of opium. A tonic or stomachic powder or mixture should also be prescribed, with the warm bath, and frictions of the surface upon coaling out of it. If these means fail, there is probably disease of the mesenteric glands, — the liquor potassffi may be given in beef-tea, the mild mercurial continued every night, and the purgative draught already directed (§ 29.) also be tried. In some obstinate cases of this kind, I have resorted to the chlorates of the fixed alkalies or of lime, conjoined with the compound tragacanth powder and aromatics (F. 283.), with great benefit. It will generally be necessary in this state of the dis- ease to rouse the digestive and assimilative func- tions by tonics, and the action of the liver by mild mercurials ; and to combine these remedies with antacids, or with demulcents and aromatics, or with balsams or the terebinthinates. The infusions of calumba, or cascarilla, or cinchona, or cusparia, with sesqui-carbonate of ammonia, and confectio aromatica, may be first employed ; and afterwards the balsams, or vegetable and mineral astringents. In more obstinate cases, the warm salt-water bath, or a tonic, stimulating, or gently rubefacient plaster to the abdomen or loins, or both, may he prescribed, and the trunk surrounded by a flannel roller ; a Ught farinaceous diet being allowed. The treatment now described is requisite equally in children as in adults. This form of chronic diarrhoea is most common in the former ; and when it is connected with dentition, requires con- stant attention to the state of the gums. 32. D. Diarrhcea from Ulceration requires very nearly the same treatment that was recommended for chronic mucous diarrhcea (§ 31.), of which it is generally only a modification or conse- quence. When the evacuations in this variety are fluid, or muddy and fcEtid, and without tenes- mus, the disease is most probably seated in the small intestines ; and when arrested by opiates and astringents, uneasiness at the stomach, with nausea and sickness, are usually produced. Besides the means noticed in the preceding paragraph, the terebinthinates and balsams may be given, with small doses of rhubarb, magnesia, tragacanth, &c. The mistura cretae, with tinct. camphorae comp, and mucilage; the decoction of logwood, with laudanum; the hy- drarg. cum creta, with pulv. ipecacuanhas comp., and either an aromatic'or an alisorbent ; thenitro- bydro-chloric acid, with tinct, opii, in tonic infu- sions ; a decoction of cusparia, with nitric' acid and laudanum ; the infusion of catechu, with aromatics ; sulphur, with sesqui-carbonate or bi- borate of soda and opium; camphor, with nitrate of potash, or chlorate of soda, and tragacanth ; the chlorates, with demulcents or emollients ; the nitrate of silver, with tonic extracts, &c, ; the sulphates of copper, or of iron, or of zinc, or the tris-nitrate of bismuth, either alone or witW opium ; lime-water ; blisters and rubefacients ; demulcent, emollient, and opiate clysters ; tepid salt-water bathing, followed by frictions with rubefacient liniments (F, 296. 305.), and tonic plasters, with flannel rollers round the abdomen ; are the means which are most to be depended upon, in this un- favourable state of the disease. Animal food generally increases the disorder, and farinaceous articles of diet should be in moderate quantity, or taken after short intervals. 33, E. Diarrhwa with indigested Matters in the Stools. — The treatment in this variety should be directed principally with the intention of pro- moting the functions of the stomach and duo- denum. These may, particularly in children, and during the period of dentition, be disturbed by inflammatory irritation of the mucous surface, associated with increased action of the muscular coats (§ 12.) ; whenever, therefore, this con- dition is presumed, leeches should be applied over the epigastric region, and be followed by a sinapism, or a blister, with tissue paper interposed between it and the skin, or by a rubefacient cata- plasm or liniment. As the biliary functions are usually torpid or otherwise morbid in this variety, and the mesenteric glands often diseased, hy- drarg. cum creta, with carbonate of potass, ought to be given at bed-time. The digestive functions will be most permanently promoted by the infu- sion of cinchona, or catechu, or cascarilla, or calumba, or of cusparia and rhubarb, with liquor potassa?, or sesqui-carbonate of ammonia and small doses of opium (see F. 413. 623. 788. 870.) ; or by chalybeate preparations, parti- cularly the ammonia-tartrite of iron, with lau- DIARRHQ'^A — Treatment of, in CiiiLDnEtf. 531 danum, or extract of syrup of poppy, or tincture or extract of hop. The use of recent ox-gall, as recommended by Horn (Arcltii'. War. 1810. p. 335.), or F. 481., is appropriate in this and the two preceding varieties, and will be very beneficial when it can be exhibited. In addition to these, and other internal and external remedies already noticed, the tepid or salt-water bath or semicupium, will also be productive of much ad- vantage, particularly when followed by frictions of the abdomen or spine with stimulating embro- cations or liniments. 34. iii. — (fl) Diarrhcea in the Puevpeml State (§ 14.), when it arises from accumulations of faecal matters, and morbid secretions, requires the use of gentle laxatives and mild purgatives, assisted by emollient and aperient clysters, with strictly regulated diet. After the offending mat- ters are evacuated, opiates should be exhibited. When bilious vomiting accompanies diarrhceaj^ or when the stools are bilious, demulcents, di- luents and mild laxatives are requisite, until the morbid secretions are evacuated ; but if spasms v/ith much irritability of stomach be present, opiates must be immediately exhibited, with magnesia, and nitrate of potash, which will generally remain upon the stomach ; but if these be vomited, small opiate clysters or suppositories should be administered. As long, however, as the stools continue offensive, or otherwise mor- bid, mild laxatives, and an occasional dose of colomel or blue pill, should be prescribed. In other respects the treatment is to be conducted according to the principles already sketched. — (/;) When, in addition to the accumulation of morbid secretions, slight or chronic inflammation of the mucous surface of the bowels, with serous dark-coloured and offensive evacuations super- vene, an emetic of ipecacuanha, if given suffi- ciently early, will be of service. After its oper- ation, or independently of it, three or four grains of calomel, or five or six of hydrarg. cum creta, ■with a little magnesia, may be exhibited, and in a few hours afterwards, either a dose of fresh castor oil, or any other mild purgative. If griping be present, an emollient and opiate enema should be administered. If the lochia be suppressed, the bi-borate of soda, in doses of from ten grains to a scruple, may be given three or four times daily, in emollient decoctions or infusions (F. 209. 630. 867.), or the liquor ammoniffi ace- tatis, with spirit, ammon. aromat. and camphor mixture may be prescribed ; mild purgatives or laxatives being repeated occasionally, until the tongue becomes clean and the stools natural. If the disease be not relieved by these means, and if pain be felt in any part of the abdomen upon well directed pressure, or if a sense of heat or the symptoms of serous diarrhcea be present, general or local bleeding, with the rest of the treatment recommended in that variety (§ 28.), should be put in practice. Having removed morbid matters, or inflammatory irritation, where either or both exist, demulcents, absorbents, gentle restoratives, and tonic or astringent infusions, with mild diet, may be prescribed. 35. iv. In Infants and Children, diarrhoea assumes the bilious, serous, mucous, and lienteric characters : the former two more frequently before weaning, and in an acute form, or at a more ad- vanced age in connection with irritation in the brain ; the latter more usually after weaning, and in the chronic states (§ 16.) — (a) In slight diar- rhoea, with fluid feculent motions, small doses of rhubarb with magnesia (F. 623. 633.), a grain or two of hydrarg. cum creta at night, and the tepid bath, are all that is required ; care being taken that the bowels shall not become costive. If the dis- order be occasioned by improper ingesta, or over- feeding, or if it be attended by fever, an ipeca- cuanha emetic should precede the above means, which ought to be followed by a dose of castor oil ; and a grain or two of calomel ought to be given at bed-time, as advised by Dr. Clarke {Mem. of Irish Acad. vol. vi.). When the stools are slimy or serous, and ejected forcibly, with tenderness on pressure, leeches and foment- ations should be applied to the abdomen, and small anodyne and emollient clysters thrown up. If the evacuations emit a sour smell, and if they be greenish, or curdled, or frothy, cretaceous sub- stances and magnesia, or ammonia, with aro- matics, and occasionally with opium or syrup of poppies, ought to be exhibited ; after the more urgent irritation is subdued, mild purgatives will still be required, and should be repeated, when- ever the evacuations are morbid. Great caution is necessary in exhibiting opiates to infants, either by the mouth, or in clysters, and they ought not to be given when the symptoms indicate the cetention of morbid matters in the bowels. In order to evacuate these matters, the following may be prescribed : — No. 176. R Spirit. Ammon. Aromat. 3jss.; Olei Ri- cini, Syrupi Rosa;, et Mannae Opt., aa 3 ss. ; Aquae Pimen- tas et Aq. Com. aaSj. Fiat Eraulsio, de qua sumatur Coch. unum minimum vel mediocre, pro re natd. Vel, No. 177. R PotassiE Tartratis 3ij. ; Infusi Senn« Comp. et Aq.. Foeniculi Dul. aa 3 j- ; Syrupi Sennffi3 ss. ; Olei Anisi HI vj. Fiat Mist., cujus capiat Coch. unum mediocre vel araplum pro dosi. No. 178. R Hydrarg. cum Creta gr. xij. ; Sodse carbon, exsic. 3 ss. ; Camphorfp rasa; gr. iij.; Pulv. Ipecacuanhae, Pulv. Opii, aa gr. j. ; Pulv. Cinnamom. gr. xviij. ; Sac- chari Albi 3j. ; Olei Anisi TU, iv. Tere probe simul, et divide in Cartulas xij., quarum omni nocte, vel mane nocteque, capiatur una. 36. When the diarrhcea proceeds from icean- ing, either prematurely or at the proper time, the treatment now advised, or that recommended for the mucous variety' (§ 30, 31.), should be employed. Dr. Cheyke directs small and repeated doses of calomel ; but, unless morbid matters are accumulated in the prima via, — when it should be given in a full dose, and be followed either by castor oil, or the mild purgatives already prescribed, — the hydrarg. cum creta, with magnesia and Dover's powder, or F. 923., is preferable. When the stools are slimy or bloody, or squirted out forcibly, leeches should be applied to the abdomen, and these medi- cines be also given in small but frequent doses; fomentations, demulcent clysters containing- olive and castor oil, the tepid bath, and warm clothing, being alj^o prescribed. If it assume the nciUc cha- racter, or at the commencement of the attack, the treatment prescribed in the article on the Cho- leric Fever ofInfants (§ 1 1. 15.), of which it is merely a modification, is in every respect appro- priate. When it passes into the clironic form, the means recommended with reference to chronic mucous diarrhoea, or the ammonia-tartrite of iron, with confectio aromatica and compound tragacanth powder, should be employed ; the hydrarg. cum creta and Dover's powder being Mm 2 532 DIARRHCEA — Treatment of its Complications. exhibited every niglit. The abdomen or spine ought also to be rubbed night and morning with either of the liniments (F. 296. 300. 311.), upon coming out of the tepid or warm bath, and be rolled in flannel. When the patient's strength is not much reduced, and if there be fever, and ofiensive evacuations, much benefit will result from a dose of calomel, with a grain of James's powder, at bed-time, and from one to two drachms of castor oil, with half a drachm of the spirits of turpentine, taken on the surface of fennel water the following morning. Clysters of beef-tea, or of strained mutton or veal broth, well salted, may also be thrown up ; and the chlorates of the alkalies or of lime, or lime water ; the sulphate of iron in small doses, with the sulphate of potash ; the liquor potassas, or the sesqui-carbon. of ammonia, with infusion of cin- chona, or of catechu, or F. 183. 363. 536. &c., may be prescribed. With a light nutritious (chiefly farinaceous) diet, a sufficient quan- tity of salt should be taken ; and if the vital powers be much depicssed, warm spiced port wine negus may be allowed in small quantities. In the variety attended by copious, pale, albu- minous urine, &c. (§ 17.), strong jellies and soups, animal food, fresh eggs very lightly boiled, the chlorates, with small doses of rhu- barb, vegetable and mineral tonics and astrin- gents, the preparations of iron, warm salt-water batiis, and frictions with stimulating liniments, are the most beneficial. If the bowels become constipated, the mildest laxatives should be prescribed. If the urine be much diminished in the more common form of the disease after weaning, the spiiit. ajtheiis nitrici ought to be given ; and if drowsiness or coma supervene, blisters may be applied behind the ears. These last symptoms are more frequently the conse- quence of exhaustion than of effusion, when they occur late in the disease : or if effusion take place, it is the result rather of the physical state of tlie brain, a sei'ous fluid poured out from the vessels filling the vacuum that would other- wise have been left by the anaemic and atrophied encephalon, and requires tonic and restorative remedies. In such cases, more advantage will accrue from measures calculated to support the vital powers, to allay irritation in the prima via, and to determine the circulation to the external surface, than from those which depress the ener- gies of life, although they may act beneficially in other respects. It is necessary to watch care- fully the state of the gums throughout tjiis serious and olistinatc form of diarrhrca, and to lance them whenever they indicate the propriety of the operation. — ((/) Iftlie diarrhoea, either in infants or older children, be symptomatic of cerehtal con;j^es,l'wn, inittitioii, or iiijtaimnation (§ 35.), leeclies beiiind the cars, calomel with .James's powder, the scmicupium, cold effusions oh, and cold applications to, the head, with cool- ing diaphoretics, diuretics, and external deriva- tives, are the chief remedies. 37. v. Diaiihaa in the Diirk Races requires a much more general and liberal use ofaromatics, absorbi:nts, and warm astringents, liian arc admis- sible in the white variety of our species. In them, capsicum and the other hot spices, witii cretaceous powders and niixtuies, the preparations of ca- tccliu, of kino, of iron, &cc. arc almost indispens- able. When symptoms of retained faecal matters are present, purgatives are requisite, but they should be of a warm and tonic kind, or be com- bined with substances of tliis description. Al- though diarrhoea is only occasionally camplicated with intestinal ivorms in Europeans, and then chiefly in children, or in the inhabitants of low, moist, warm, imperfectly ventilated and unhealthy places, it "is very often thus associated in the dark races, and at every age. This circumstance, therefore, should suggest the employment of an- thelmintics, especially those which are tonic and astringent, as the decoction of the pomegranate root, or the pink-root, or the male fein, in pre- ference to other medicines, particularly when these parasites are suspected to be present. In this class of subjects, whether diarrhoea be thus associated or simple, a suflficient quantity of salt with aromatics should be allowed, and the pa- tient's strength be kept up by suitable nourish- ment, and by vegetable and mineral tonics. 38. vi. The Associations of diarrhoea (§ 19.) require the greatest discrimination. — (n) When it accompanies the invasion of fevers, it generally proceeds from the irritation of retained excretions and acrid secretions in the prima via. These should be evacuated by an ipecacuanha emetic, and by diluents and clemulcents, followed by a full dose of calomel, and this latter by a mild purgative and oleaginous enema. If signs of vital depression exist, warm diaphoretics with ammonia, and occasional doses of rhubarb with magnesia, and the warm bath, should be after- wards prescribed ; but if febrile excitement ac- company the diarrhcea, saline refrigerants, and the rest of the treatment recommended in the serous variety', will be necessary. (See Fevers.) — (ft) Wlien the disorder accompanies gout, or occurs in the gouty habit, it should not be checked. IMild purgatives may be first pre- scribed in conjunction witli preparations of am- monia, or one of the fixed alkalies; and when morbid secretions and faecal matters are eva- cuated, full doses of magnesia, or of potash or soda with the spirit, colchici ammoniatus, and afterwards mild tonics, will generally restore tlie digestive functions — (c). ^V hen diarrhoea is com- plicated with bronchitis (§ 19.), as often occurs during dentition, local depletions, lancing the gums, and calomel or hydrarg. cum creta, fol- lowed by a mild purgative, and these by diapho- retics, demulcents, emollients, the tepid or warm bath or scmicupium, and attention to diet and warm clothing, are the means to be chiefly de- pended upon. In many of such cases, ipecacuanha emetics, and in others, camphorated refrigerants, will be productive of great benefit : the former when the bronchi are much loaded, and the stools are mucous and oftensive ; the latter when there is much heat of skin, and serous or watery evacuations. — (d) Diarrhoea complicated with scarlatina, measles, or S7nall-po.r, must be treated with strict reference to the state of vital power, the appearance of the cruj)tion, and the clia- ractcr of the evacuations. These important complications are particularly noticed in the articles on tiicse diseases ; but I may here re- mark, that a sudden arrest of the evacuations may be followed by eft'usion within the head, and coma, whilst their unresti'ained continuance may occasion exhaustion, or fatal disorganisation of DTAUUHCRA — Notices of Remedies t^f.commended by AuTirons. .533 the intestinal mucous coat. The treatment should therefore be directed, in sucli cases, with the intentions of diminishing inflammatory action in this part by moderate local depletions, of equalising the circulation and secretions by ex- ternal derivatives and relaxants, and by diapho- retics and diuretics, and of supporting the powers of life, whenever they become depressed, by diffusible and permanent stimulants. I may state as the result -of experience, that, when this complication follows an imperfect developemenl, or retrocession, of the cutaneous eruption, even moderate depletions are not well borne, unless they be accompanied by warm diaphoretics and diffusible stimulants ; and that, of the latter me- dicines (which are very generally appropriate), full doses of ammonia, or of camphor, or of both, in some instances combined with nitrate of potash, in others with alkaline carbonates or magnesia, in most with demulcents and emollient diluents, in several with laxatives, and in many with aromatics, or tonics and antiseptics, have proved the most beneficial. — (e)\Vhen a diarrhoea that is not critical aca)/»/i(7)i(Vs or follows remittent, ciintinued, or adynamic fevers, the evacuations being watery, muddy, dark-coloured, or otherwise morbid, the hydrarg. cum creta, with ipecacuanha, cani|)hor, and cretaceous substances; or the tere- binthinates and tlie balsams, with vegetable or mineral astringents ; also tonics and antiseptics, the nitric and hydro-chloric acids, or both, or rhu- barb with magnesia ; the chlorates with demul- cents; external derivatives with warm rubefacient and stimulating liniments, &c., are the chief re- medies, and the most likely to prevent the extensive sloughy ulcerations that sometimes attend the diarrhoea that supervenes either during, or subse- quently to, these diseases. 39. Colliquative diarrhoea is sometimes not easily controlled ; and even when most readily repressed, the constitutional disturbance may be thereby increased. It is most benefited by small doses of the sulphates of copper and of zinc (F.577. 587.), by the mineral astringents generally, and by the cretaceous and demulcent preparations, combined with camphor, aromatics, and opiates, or with tonic and astringent infusions and decoc- tions, which, at the same time that they alleviate the symptoms, also support the vital energies. But the adoption and combination of these, or the choice of other remedies already or about to be noticed, should depend mainly upon the nature of the primary disease, of which the diarrhoea is, in this state, merely an advanced symptom. 40. Cautions, &c. — The critical manifestation of diarrhoea should never be interfered with, un- less it either proceed so far as to depress the vital energies, or be attended by signs of inflammatory disease of the mucous surface and follicles, in which case the treatment recommended for the varieties indicative of such disease and its conse- quences should be prescribed. When diarrhoea occurs in gouty or asthmatic persons, or in those of a plethoric habit of body, or who have a ten- dency to, or have suffered from, cerebral affections, or hepatic disorders ; or in the leuco-phlegmatic and hydropic diathesis ; it ought fo be treated with much caution ; and should be only at first mode- rated, if very severe, by mild purgatives or laxa- tives ; by depletions, diaphoretics, and diuretics ; by a regulated diet ; and by warm clothing. according to the circumstances of the case, be- cause the sudden arrest of the evacuations by opiates and astringents may be attended by some risk, 41, vii. Notices of pahticuear REJiEDirs RrcoM. 11 ended by Authors, &c. — A. Bleeding has been advised by Cotugnus (De Vena'sect. in Diarrh. Rom. 1604.); by Ilonsnus (0pp. lii. p. 68.) ; by Zacutus Lucitanus (Med. Pr.llist, l.ii. p. 734.) ; in the bilious variety, and by Sydenham. It is obviously requisite in the in- flammatory states of the disease, whether acute or chronic, and preferably by leeciies applied to the abdomen, to the sacrum, or to the verge of the anus, particularly when tenesmus is present. 42. B. Refrigerants are always beneficial in the serous and mucous varieties, and when the complaint is attended by increased heat or excited circulation, and erect papillae of the tongue ; and they may be combined with demulcents and opiates (F. 36.821.838.886.) according to the circumstances of the case. Of this class of medi- cines the iiitrate of potash or of soda, camphor (F. 431.), the muriate of ammonia (F. 352.431.), borax (V. 209. 630. 867.), variously combined, and the tepid bath, are the most appropriate. Reca- MiER (Annuaire Med. Chirurg. vol. i. p. 113.) recommends nitre with the oxyde of bismuth, and opiated arornatics. Hufeland prefers the muriate of ammonia (Stark, Archiv. b. i.st. 3. p. 93.) in the inflammatory states, and when it accompanies fever; and Zadig combines it with mucilaginous substances (Jonrn. der Erfnd. st. xxi. p. 57.). 43. C, Laxatives and 7nild purgatives have al- ready been sufficiently noticed. Those of an irri- tating nature are not unfrequent causes of the complaint, and ought never to be presciibed. Even castor, olive, or almond oil, if they be in the least acrid or rancid, will be productive of much mischief, I have seen enteritis supervene on diar- rhoea from this cause. In the chronic states of the disease, sulphur, with cream of tartar and sub-borate of soda in the form of electuary (F. 790.), and conjoined with aromatics, is often the best laxative that can be employed. It has been preferred by Lance (JVJisce//. Verit. f. 29.) and it possesses the advantage of relaxing the skin. 44. D. Dwp/ioret;>s are of much benefit in all the febrile states of the disorder, particularly the serous variety, and are advantageously combined with refrigerants. They have been adopted by SyuENUAai, DiE-iiERBROECK (Obscrvat. et Curat. No. 64.), Lentin (Bev^ri/ge, b.iv. p. 332.), Osi- ANDER (Denku'iirdigheilen, h.u. p. 179.), &c. The chief of this class are James's powder, ipe- cacuanha, camphor, carbonate and acetate of ammonia, spiritus a?ther!s nitrici (F. 394. 840.), &c. Ipecacuanha, particularly when associated with nitrate of potash, camphor, and opium, is one of the most certain and efficient remedies we can prescribe in all the acute forms of the disease ; and it is also a very useful adjuvant of other medicines (see F, 39. 495.642. 744.924.). It has been very generally used, and particularly by LiNN/Eus (Ama-n. Acad. Upsal. vol. viii. p. 246.), Fotiiehgii.e (Med. Obscrvat. and Inqitir, vol. vi. art. 18.), Baldinger, (K. Magazin. b'. xix. p. 404.), Stark, Loeffler (Beptrdge, b. i.), and Broussais (Loc.cit. in Bifc/i.), either in the com- binations now noticed, or in those constituting the ]M m 3 534 DIARRHCEA — Notices of Remedies nEcoMMENCED ry Autiiohs. tract of the former, byTnEussiNK, Oswald (Archiv . der Pr. Heilk. f. Schlesien, h. ii. st. 4. art, i.), Horn (Archiv. Nov. 1810, p. 258.), and Rum- MEL ; the latter by Recamier and Graves (see BibL), who gave the twelfth part of a grain of it twice or thrice a day, with complete success, in an obstinate case of white mucous diarrhoea. Dr. RuMJiEL considers it particularly efficient in removing this very obstinate form of the complaint, when seated in the lower bowels. 49. I. Astringents are requisite in similar states of combination as tonics, and in the same forms of the disease. They are not admissible in the bilious variety, or where faecal collections or acrid matters are retained, or in the inflammatory states of the complaint, until after depletions, refrigerants, and diaphoretics have been employed ; but they are seldom of use whilst the temperature of the surface is increased, and the pulse accelerated, although M, Rally's experiments indicate the contrary. — a. Of the vegetable substances belong- ing to this class, the most serviceable are catechu, kino, the pomegranate bark or root, the cusparia, or angustura bark, logwood, &c., and some mineral substances. The preparations of catechu with those of chalk and opiate confection, or F. 30.183. 788., are very generally employed, as well as those of /i!?u) (F. 34. 536.). Some doubts exist as to whether catechu or kino is most serviceable. Dr. Pembertox preferred the latter ; and M, Rally (Gazette dc Sa7itt, &c. 1829, and Med. Guz. vol. v. p. 700.) found, from an extensive trial of it, that it generally arrested chronic diar- rhoea, without fever, in four or five days, when taken to the extent of from twelve to twenty grains daily ; and that even in diarrhoea with fever, and tenderness of the abdomen on pressure, it was equally successful. The bark of the root of the pomegranate as well as its flowers, and the exterior of the fruit, have been long employed in diarrhoea in Eastern countries. They were much prescribed by Mead, Strandberg, and Cullen. JMead gave them in the form of decoction with cinnamon and red roses. They are very beneficial when the diarrhoea is complicated with worms. The cusparia or angustura bark was much praised by Lettsojm (Mem. of Med. Soc. of Land. vol. vi. art. 15.) and Theussink ; and is an excellent medicine, either in substance, tincture, or infusion (see F. 201. 413.). The krameria or rhatani^ root, first employed in diarrhoea by the Spanish physicians. Dr. Ruiz (Mtm. de VAcad. l^oy. de Madrid, 1796, p. 364.) and Dr. Hurtado (Joimi. de M^d. (l^c, t.xxxvii. p. 216.), has since been used with advantage in this country (F. 734.). The simarouba bark was recommended by Jussieu, Cai'et, Fni/.E (Annalen, I. -p. 59.), and WERi.iior ( Observat. de Fehr. sect. iii. § 6.), but ciiiefly in the diarrhoea attendant on fevers ; and the mahoganii bark by IlrciiES (Med. Facts and Observ. vol. vi. art. 10.). These may be prescribed in the form of infusion with the arnica, the root of which has been much used by Tueussink in this complaint. The loguood is an excellent astringent, and, in the form of decoction, a suitable vehicle for other re- medies. The bistort, il\e uva itrsi (F. 217. 396.), and tormentil, are also of much service, particu- larly when associated with ipecacuanha. 'l"he root of comfrey, the consolida major, is recom- mended by Jli'iELAND (Journ. der Pr. Heilk. 1809.); and the lythrum salicaria, by Blom, old and new Dover's powder. It may also be given with the nitrate of soda and opium ; or with the tormentil, zs formerly directed by me (.LoHrf. Med. Repos. vol. xviii. p. 329.). 45. E. Demulcents and emollients are of service in all the varieties of diarrhoea: those of an olea- ginous kind, in the form of an emulsion, when a laxative is required, as the castor, olive, or almond oil, with ammonia, or the fixed alkalies, &c. ; and those of a mucilaginous description,' when a con- stipating effect is desired, as the compound powder of tragacanth (F. 389.) or mucilage of acacia, and decoction of Iceland moss (Lind. Herber, in Horn, Archiv. Nov. 1810, p.289.) ; and they may be combined with refrigerants, or opi- ates, aromatics, absorbents, or astringents, — also with sedatives, as the hydro-cyanic acid, the pre- parations of morphine, or of hyoscyamus, or of hop, or those of ipecacuanha, according to circum- stances. (See the IZmulsions in the Appendix.). They are often of great service when administered in the form of small clysters, conjoined with opium, as advised by Sydenham (0pp. p. 87.). Hildenbrand (Hufeland, Jo!fr7i. der Pr. Heilk. b. xiii. St. 1. p. 148.), and Hufeland (in Ibid. b. xxvi. St. 3. p. 155.). 46. F. Absorbents are especially indicated when the complaint is connected with acidity in the prima via ; and the cretaceous, magnesian, and ammoniacal substances, combined with opiates, aromatics, and astringents. (F. 37. 347. 354. 384. 442. 648.), are the most serviceable when relaxation of tlie mucous surface and debility exist ; and the carbonates of the fixed alkalies, associated with refrigerants (F. 838.), when in- flammatory action is present in this surface. 47. G. Aro7natics (¥. 348. 363.) are particu- larly requisite in asthenic cases, and if the patient has been in the habit of using hot condiments and spices with his meals ; or when the diarrhoea arises from unwholesome water, from stale animal food, and from endemic causes; in which cir- cumstances, charcoal, in large doses, as recom- mended by Dr. .Jackson, and some American physicians, may also be given. Aromatics are best combined with absorbents and vegetable tonics or astringents. 48. H. Tonics, particularly calumba (F. 51. 869.), cascarilla (F. 870.), and cinchona (F.380, 381.), are often re(|uisite, especially in conjunc- tion with the alkaline and other absorbents, and with aromatics, opiates, &c. ; and in the idiopathic, the asthenic, and chronic states of the disease. In such cases, and thus combined, calumba has been recommended by Percival (Essays, vol. ii. p. 3.), Stark (Klin, and Anat. Bemerk. p.7.), Thomann (Annalen. ad 1800, &c.), Frank (Acta Inst. Clin. Viln. Ann.u. p. 79.), Fischer (in Hufe- LAND, Journ. d. Pr. Heilk. h.xvi.sl.i. p. V23.), and LicnTENSTEiN (Ibid. b. xix. st. i. p. 180.) ; quassia, by I>ettsom ( Mem. of Med. Soc. of Loud. vol.i. p. .) ; cascarilla, by Bang (Act. lieg. ost mortem inspections, and that to ascertain the condition of the ganglial nerves requires the most minute research, which can seldom be devoted under such circumstances. — (6) The blood-vessels of the gastro-intestinal tube are very often large and dilated ; but this is not hypertrophy. Their parietes are very rarely thickened. M. Ancral found, in two cases of 544 DIGESTIVE CANAL — chronic disease of the stomach, the parietes of the veins thus changed, constituting tine hypertrophy. FoRESTUs {Observ. 1. xviii. ; SchuL ad ObservAQ.) and VoiGTEL (Handb. de>- Pathol. Anat. ii. p. 95.) have noticed a varicose state of the veins of the stomach ; a lesion which M. Andral has not met in his numerous dissections. — (c) The li/rnphatic vessels, and especially the glands of the digestive canal, are very frequently hypertropliied, if the increase of volume so often found in the lacteal or mesenteric glands after irritation of the intestinal mucous surface be considered as true hypertrophy. But, in many instances, tlie enlargement is merely the consequence of vascular injection, and serous or sero-puriform infiltration of their tissue, without any increase of nutrition — the very element of hypertrophy. But after these pathological states have subsided, an evident increase of the bulk and density of these glands remains, whether the pri- mary irritation continues, or has long previously disappeared. When these glands are enlarged, dense, and not very vascular, we may attribute the change to increase of nutrition, according to the state of our knowledge of what constitutes it. But when evident signs of inflammation — as in- creased vascular injection, redness, and tumefac- tion — are observed, the change must be chiefly imputed to increased organic action of the blood- vessels; although this condition does not preclude the co-existence of hypertrophy ; with which, in- deed, increased vascular action, in some grade or other, is very frequently, and even necessarily, associated, and of which it is generally the cause. However, in many cases of what maybe called hypertrophy, or, otherwise, enlargement of the lacteal or absorbent glands, instead of being more vascular, they are pale, and even more bloodless and colourless than natural, particularly after chronic diarrhoea, lientery, and marasmus. The glands through which the lymphatics of the stomach pass are not so frequently enlarged as those of the mesentery. Often, however, tiiose along the curvatures of the stomach and around the pylorus are much increased in size. 34. D. Sojteniiig of the digestive canal is one of the most common changes observed ; and it may be limited to one of the coats, or extended to two or all of them. In this latter case the parietes of the canal may be torn with the greatest ease. — (a) Softening of the villmts coat is most frequently met with : it occurs in every degree, and either throughout or in parts of this membrane only, the consistence of the other coats being undiminished. This lesion is most common in the stomach, where it has been most minutely studied. In its first stage or grade, it can hardly be removed in shreds, as it may be in the healthy state ; and it is readily converted, by scraping, into a kind of pulp. As the softening increases, the slightest touch reduces it to a mucous-like pulp ; and at still further ad- vanced periods, it is either no longer uniformly spread over the gastric surface, or it is entirely deficient in parts or throughout, leaving the sub- villous tissue (|uile bare. This lesion may exist in the whole of the stomach, or in parts of it only, — most frequently in the splenic portion. It is often attended by marked dilatation of the veins running between the coats, evincing the antecedent exist- ence of increased vascular action in (;ases where other appearances of it may have vanished. In Softening of its Tissues. some cases of children, the softening exists only in a number of small round patches of a red colour ; and in others, it is in lines, streaks, or irregular bands. It is probable that the small softened spots which have been also noticed by iM.Lestikr may become ulcers from the extension of the lesion to the subjacent tissues. The colour of tiie soft- ened villous coat may be greyish or natural, or white with a bluish tinge, or a dead milky white, or red, brown, brick red, and more rarely purple. Softening, with some one or more of tliese shades of colour in different parts of the canal, is met with as a consequence of various acute and chronic maladies seated either in the digestive organs, or in remote viscera, especially chronic diseases of the lungs. White softening in the lower part of the small intestine and colon is one of the most common lesions observed after chronic diar- rhoea. 35. (6) Softening of all the coats of the diges- tive canal may take place to a remarkable extent, particularly in the stomach and bowel complaints of children, and in the gastric and adynamic fe- vers of adults. It has been described by Jaeger, Zei.ler, F. Rhades, Fleischmann, Laisne, Cruveilhier, Haviland, Wiesemann, Gaird- NER, and other writers referred to in the Biblio- graphy. In some cases, the parietes of the sto- mach may be torn with the utmost ease, all the tunics and interposed cellular tissue having be- come friable and semi-dissolved ; resembling, in extreme cases, a kind of jelly, without any tiace of organisation, and hence denominated by M. Cruveilhier " gelatiniforin softening." In some of these cases, the gastro-intestinal parietes are modified only in respect of consistence, and have the outward appearance of being sound, until more closely examined. With this loss of vital cohesion, the colour of the part may be either na- tural, or remarkably pale, or red, and without re- ference to the acuteness or chronicity of the dis- ease. The splenic portion of the stomach is most liable to general softening of the coats ; but it also occurs in the small intestines, and the cajcum and colon. M. Anural states, that he met with red- dish softening of the coats of the stomach in a child who had taken sulphuret of potash before death. I believe that this substance, as well as the caustic alkalies, will readily occasion this cliange, if exhi- bited in too large doses, or continued too long. As to softening of the gastro-intestinal parietes ever being a post mortem change, this pathologist remarks, that it may be established as a genera! principle, that any softening observed on opening the body at the usual period after death should not be considered as the result of putrefaction. But it may be, when observed in the stomach, the re- sult of tJie action of the gastric juices, as shown by J. Hunter and others referred to. It is, moreover, extremely probable that the acrid and morbid secretions of the diseased gastro-intestinal mucous surface may so far act upon any part of it as to soften and to erode it during the latter hours of existence, and the time that elapsed after dissolution. These inferences have received support from experiment and pa- thological observations (§ 6.). Dr. Cajieheh, of Stuttgaid, made, in 1018, a number of exam- inations with a view to the solution of this (question ; and found that, in all the animals DIGESTIVE CANAL — Ulcehation of its Tissues. 545 which had been killed while in good health, the great extremity of the stomach was softened, and if a sufficient time had elapsed, its parietes were dissolved or even perforated ; no signs of putre- faction being observed. Whilst, on the contrary, in a dog already evincing putrefaction, no trace of softening existed in the stomach. This phy- sician also found that the fluid collected in the stomach of two children who had died of gela- tiniform softening of this viscus, introduced into the stomach of a man just dead, produced, at the end of twelve hours, solution of the coats of the part wit!) which it had come in contact ; that a portion of the same fluid had no effect upon the stomach of a living rabbit ; but as soon as the animal was dead, or when the pneumogastric and trisplanchnic nerves were divided on each side, this fluid had an immediate action on the coats of the stomach. Hence it must be concluded that softening of this viscus is not unfrequently a post mortem change. It ought to be remarked, that softening of any part of the digestive canal has been too generally imputed to inflammatory irritation, owing to the frequency of its occur- rence in febrile and inflammatory diseases, and from the action of acrid poisons. But the ex- treme cases of it that I have had an opportunity of observing, have been in the choleric fever and diarrhcta of infants occurring after weaning, and in children who have died from aqueous effusion on the brain. In most of these it was unattended by vascular injection ; the softened parts themselves, and those surrounding them, being either softened merely, or also attenuated or even eroded and perforated, and quite pale, excepting in the course of a few large vessels. I have likewise observed it, but in a different and more general form, in the adynamic and deliquescent states of remittent and continued fevers*, and in two cases of puerperal disease ; the softened parts being more or less discoloured, and sometimes ulcerated, but not per- forated. From the condition of vital manifestation in the cases in which I have remarked this chano-e, it may be inferred that it results chiefly from a loss of the organic nervous power, and of the vital cohesion of the tissues previously to death, but is increased by this event, and by the action of the morbid fluids and secretions upon them. 36. F. Ulceration of the gastro-intestinal pa- rietes is a frequent and important lesion, and has long attracted much attention in practice. — a. It seems to have been first noticed by Avic'enna (^Canon. 1. iii. fen. 16. tr. 1. cap. 2.), who often makes mention of excoriations and ulceration as a cause of vomiting and diarrhoea ; and it has been described by Bonet {Sepulch. l.iii. sect. xi. obs. 2, 3, et passim.), Gmelin, Friend. Haller, Field, Penada, Baillie, Frank, Phost, An- DRAL, and others (see Bibliog. and Refer.). It is met with in the parts of the canal in the fol- lowing order in respect of frequency: — The in- ferior third of the ilium, the ca;cum, the colon, the rectum, the upper two thirds of the ilium, the stomach, the jejunum, and the duodenum. In either of these situations it is a consequence — (a) Of softening of the villous coat, without any • I should state, in support of my own originality as to this change in fevers, that it was noticed in a paper read by me to the London Medical Society in 1819, and pub- lished in the Quarterly Journal of Foreign Medicine for Jan. 1821. Vol. I. evident injection, the ulcer being formed in the centre of the softened part; — (6) Of small in- flamed spots of the villous membrane, which is quite sound in the intervals between them ; — (c) Of a general injection or inflammation of this membrane, the intervals being more or less red ; — (d) Of the sloughing of circumscribed parts of the villous, and sometimes of the sub-villous, and even of the muscular tissues ; — (e) Of a change in the mucous follicles, either the isolated, or Peyer's glands, or of both, — generally preceded by obstruction and enlargement of them. These glands first form conical knobs, and are either few or numerous, greyish or reddish, and with or without areola; ( § 22. c). Subsequently, a slight depression appears on their summits, owing to enlargement of their orifices, or to an incipient ulcer : this depression gradually becomes more considerable; the tumid glands thus resembling, particularly in their inflamed state, and when they contain a small quantity of puriform matter, the dimpled pustules of small-pox. They were formerly considered identical with these pus- tules, particularly when found, as is occasionally the case, in tliat disease ; and they have been described as such by Fernel (De Abd. Rer. Causis, 1. ii. cap. 12.), Baillou {Epid. et Ephem. 1. ii. p. 207.), HoRSTius (Instit. Med. Disp. 3.), A.PAHEH.xiv.cap.i.), Peyer (Observ, Anut.W.), Mead (De Variul. &ic. Lond. 1747, p. 323.), Bartholin (cap. iii. obs. 29.), P. Fabricius {Observ. circa Const. Epidem. Ann. 1750, § 18.). Pustular ulcers have been particularly noticed in chronic dysentery, by Sir J. Pringle, Sir G. Baker {Epid. Dysent. of 1762), Sir G. Blane, and Dr. D. JMonro ; the last of whom describes the black colour of their bottoms in that disease. These pustular or pimple-like excrescences are often destroyed from the apices to the bases, leaving circular and deep ulcers in their places, that sometimes extend or run into one another wlien the aggregated follicles are afl^ected, and thereby produce large, irregular,ulcerated patches. Ulceration originating in the follicles may pro- ceed either from inflammatory action, or from obstruction of their outlets, and their consequent distension and irritation by their natural secretion, which had become acrid from the retention, or by the accumulation of a morbid or tuberculous- like matter, which imparts to them the appear- ance of white granules; this change being suc- ceeded by ulceration, often without any apparent increase of vascularity. — (f) Ulceration may also arise from disease of the sub-villous tissue, instead of commencing in the villous coat itself, as in all the preceding states. In this case the sub-villous tissue is the seat of various morbid secretions — as of tuberculous matter — which irritate the villous coat, inflame it, and at last ulcerate it ; or which, by interrupting the con- nection of a portion of this coat with the parts beneath, cause it to sphacelate, leaving an ulcer- like excavation in its place. 37. /). Ulceration of the digestive tube is — or rather is an attendant upon — 'either an acute, or a chronic disease — more commonly the latter. It is very rarely acute in the stomach, but is more frequently so in the small and large intes- tines. The number of ulcers is various — from one to some hundreds. They are generally only few, or even single, when they occur in the sto- N n 646 mach ; and very numerous, crowded together, and confluent, in the ilium and large intestines; in which latter, however, they are sometimes met with singly, or few in number, and isolated. Their form is usually round or oval ; but they are also sometimes linear and irregular. They are most frequently seated on one side of the canal, but they may occupy its circumference. Their margins are either white, pale, red, or of deep brown; the portion of villous membrane forming them, being either of natural thickness and con- sistence ; or softer, harder, thinner, or thicker. In some cases the surrounding sub-vdlous tissue is thickened and indurated. Their bottoms con- sist of different tissues, according to the depths to which they may have penetrated. In some instances they are so slight as to appear like abra- sions or excoriations ; and in these the mucous coat still remains at their bottoms, the villi only having been destroyed. More commonly, how- ever, the villous coat is penetrated ; the sub- villous tissue, which is usually either grey, red, brown, or blackish, soft and fungous, or hard and scirrhous, forming the bottom of the ulcer. In other cases, neither the surrounding villous membrane, nor the cellular tissue below it, is further altered than as regards the solution of continuity, and sometimes diminution of con- sistency, "the bottoms and margins of the ulcers being white, pale, without inflammatory appear- ances, and occasionally remarkably softened. These alterations are common in the stomach and bowels of children who have suffered dis- eases of these organs, or of the brain, after wean- ing ; and in adults who have died of pulmonary maladies, or of bowel complaints after fevers. Dr. J. Gairdner considers that they are not true ulcers, but erosions of portions of the coats which were previously diseased, by the juices of the organs after death. I have seen many of these cases, chiefly in children, and believe that the principal part of the change must have taken place previously to dissolution, which had most probably rendered the surrounding tissues less vascular, and further diminished their already weak cohesion, long before the period at which these changes usually supervene (§ 35.). 38. As the ulcers deepen, the sub-mucous and the muscular tissues are successively penetrated, and in some cases without any appearance of vas- cularity in either the bottoms or the margins of the ulcers, or in the intervals between them ; these latter cases generally occur in the dis- eases already alluded to, and in cases of great asthenic or vital depression, sometimes associated with anaemia or a cachectic habit of body ; the ulcers often assuming a truly phagedenic cha- racter. When the peritoneal coat is reached, it is either thickened, by a development of the cellular tissue connecting it with the muscular coat ; or it is inflamed, the vascular injection being evident, and sometimes attended by an effusion of lymph, on its free surface, giving rise to partial ad- hesions between it and the opposite parts. In other cases, particularly in the asthenic ulcers now noticed, the peritoneum at their botton)s is thin, transparent, and pale ; no coagulable lymph being thrown out upon its free surface, owing to the weak and cachectic state of the frame. A single small ulcer may penetrate deeply, and perforate the intestine; whilst a similar result DIGESTIVE CANAL —■ Perforations of. may not arise, although the ulcerations are both numerous and large. 39. The coats in the intervals between the ulcers, as well as the parts immediately sur- rounding them, may be of natural colour, con- sistence, and thickness ; or more or less either softened, injected, tumefied, thickened, or hyper- trophied, and variously coloured. The inter- vening villous surface is often of healthy colour, but softened, and studded with enlarged follicles ; and although it is more frequently slightly in- jected, yet, in some cases, the opposite condition already noticed obtains The sub-villous tissue is often more or less thickened and indurated where the ulcer penetrates the villous coat, the ulcer ap- pearing in the centre of a thickened or hypertro- phied mass. The cicatrisation of ulcers has been observed by Baldinger (JV. Magaziii, b. ii. p. 347.), Male, Abercbombie, Andral, Trol- LiET, Billard (see Bibt. and Refer,}, and others. A large cicatrised ulcer was found in the stomach of ]M. Beclard, who had long experienced dis- order of this organ. Andrai, refers to several cases, in two of which the mucous membrane was evidently reproduced. The changes that take place on the peritoneal surface, when it becomes the bottom of the ulcer, as well as when it is perforated, have a marked reference to the state of vital power : under usual circumstances, and in a sthenic state of the system, the adhesions already noticed take place ; but in an asthenic habit of body, coagu- lable lymph is not produced, or not in such a state as to form adhesions ; and often merely an aqueous or turbid fluid is exhaled, sometimes long before the ulcers have penetrated far through the parietes of the canal. Thus ascites may supervene in any of the stages of ulceration, as observed by Prost (Med. Eclair par I'Ouver. des Corps, t. ii. p. 52.) and others. 40. G. Perforations of the digestive canal have recently attracted much attention ; but they had not passed disregarded in former times. Among the numerous writers of the 16th, 17th, and 18th centuries, who have noticed this lesion, a very great proportion, having observed it asso- ciated with intestinal worms, imputed the per- forations to them, — an inference not confirmed by more accurate modern research ; the worms having merely passed through the openings they found ready made. Instances, however, of this lesion unassociated with the entozoa have been recorded by Morgagni (Epist. xxxi. art. 2.) ; Monro, Vetter (Aphorismen, S^c. b. i. p. 193.), Bang, Hunter, Gerard, Portal, Breschet, Laennec (Joiirn. de Mid. Cont. vol.iv. p. 557.), Percy (Ibid. vol. iii. p. 510.), Leboux (Ibid. vol. XV, p. 239.), Penaoa, Jaeger (Hufeland u. Himly. Journ. d. Pr. Heilh. May, 1811.), GisTREN (7/)((/. July, 1811.), Marcus (Ep/ieme- riden der Heilk. b. i. heft, ii.), Cloquet (Nouv. Journ. de Mid. t. i.), Louis (Archives GcnSr.6^c. t. i. p. 17.), Legai.lois (Ibid. vol. vi. p. 68.), Chaussier, RuLLiEii, Ehermaier, Gairdner, Abercromhie, Armstrong, &c. (see Refer, in liibtiog.). This lesion may arise in vaiious ways : (a) It may be partly or altogether a post mortem change, and attended by softening and thinning of the surrounding tissues; (h) or it may be caused by an eroding ulceration of the tunics, without injection, but either with softening and thinning, or with thickening and induration , of DIGESTIVE CANAL — Perforations of. 547 the margins ; (c) or by a circumscribed slough involving all the gastro-intestinal tunics ; (d) or by an ulcer that has penetrated all the coats; (e) or by rupture of a previously softened or otherwise diseased portion of the parietes. 41. (a) Perforation from the action of the gastric juice is always in the depending part of the stomach; its size is large and irregular, its margins are fringed and thin ; and the sur- rounding tissues are pulpy or gelatinous and transparent, having a semi-dissolved appearance, and a pale, whitish, yellowisii colour, sometimes streaked with brown or black lines from the action of the acid juices on the blood remaining in the capillaries. — (6) Eroding ulcerations of the stomach, such as have been described above (§ 35 — 37.), and which are with difficulty dis- tinguished from the post inortem effects of the gastric juice, may end in perforations, having pale, thin, and soft edges, especially in children. Dr. CosTE records two instances of such per- forations in the stomachs of adults, caused by the bi-chloride of mercury and spirits, long and largely employed. — (r) A portion of the canal very rarely sloughs so as to involve all the coats, and to give rise to perforation when the slough is thrown off, excepting in cases of poisoning by acids, and of strangulated hernia. — (d) Ulcera- tinii is the common cause of perforation, and is most frequently, in such cases, seated in the solitary or aggregated glands of Brunner and Peyer. — a. It n)ay occur suddenly, and peri- tonitis supervene, the patient having previously ap- peared in good health. Such instances are recorded by Male, Rogers, C. Smith, Craimpton, Tra- vERs, Laennec, Andral, the author, and Houri- enne (Journ, de Med. t. xxxvi. p. 464.), as having occurred in the stomach ; and by Neu- mann and HuFELAND (Jourii. der Pract. Heilk. h. ix. p. 170.), the perforation having taken place in the duodenum and jejunum. — S. Per- foration is more frequent in the course of, or during convalescence from, the gastric and enteric form of continued fever, particularly in the epidemic or rather endemic forms of it, similar to those described by M. Bretonneau under the name of Dothinenterites, and previously by Roederer and Wagler by that of mucous fevers. But it may occur in all fevers of an adynamic form, the surrounding portions of in- testine being of a dark or dirty brown, or ochry colour, softened, and often ulceiated in numerous places, or studded vi'ith minute ulcers of the ag- gregated glands. This change has been well described by Bright, Chambers and Hewett. (See Fevers — Diseased Appearances in.) — y. It is also met with after chronic complaints of the stomach or bowels, which are sometimes attended by much pain or retchings, as in the cases re- corded by J. Moore, M. Workman, Elliotson, and Heim (Horn's ,4;-c/i(L'. Jan. 1822.), but more frequently by little acute sufiTering, until after per- foration, followed by peritonitis, has taken place. — $■. It also supervenes during chronic disease of the lungs, owing either to simple ulceration of the glands, or to softening of tubercular matter de- posited between the gastro-intestinal coats, and consequent ulceration, as in the case recorded by M. Legallois (see Refer.) : perforation from this latter cause sometimes, however, occurs in- dependently of pulmonary disease, particularly in children. — (e) Perforation from rupture of an ulcerated, cancerous, thinned, softened, or other- wise diseased part of the canal, is most frequently observed in the stomach, and in the colon or caecum ; and is sometimes favoured by stricture, thickening, &c. of the portion below it ; the rupture usually arising from the over-distension of the diseased part of the canal, from external violence or pressure, and from straining at stool or vomiting. Most of the cases of rupture of the stomach and bowels recorded have been con- sequent upon some one of the changes already described, as may be seen in the cases recorded by MoRGAONi (Epist. liv. art. 15.), Andry {Hist, de la Soc. Roy. de Med. 1776, p. 2.57.), Lieutaud, Acrel (A^5c/iHff/. ^6/(. b. ix. n.3.). Portal, Richter (Chir. Bihlio. b. xii. p. 403.), SoEMMERRiNG ( N ol cs S^'c .) , Sandifort (Observ. Anat. Path, l.iv.), Zeviani (Mem. di Matem. e. Fisica della Soc. Ital. Veron. t. v. 1790.), Hufelanu (Joiirn. d. Pr. Heilk. b. v. p. 819.), BouiLLAUD (Arch. Gen. de Mtd. vol.i. p. 534.), Marjolin (in Ibid, vol.ii.), Annesley, Cramp- ton, Eli.iotson, Lisle, F. Davis (in the duo- denum), Abercrombie, W. Cooke, and others. — (_/■) Ruptures of the stomach and duodenum, without, as well as with, vomitings, but without any organic change or violence sufficient to ac- count for the occurrence, have been observed by DupuY, Lallemand, Chevalier, and B. Brown ; but, probably, softening or atrophy, or thinning of the coats also existed, although not mentioned.- Perforations of the digestive canal are most frequent in the stomach, especially in the splenic portion. In other parts of this canal they seldom occur, except at the bottom of ulcers ; whilst in the stomach they are more commonly produced by the other causes above enumerated. They may, however, exist simul- taneously in different parts of the intestinal tube ; and may occur at every age. Cruveilhier, Wiesemann, Gairdner, and Billard have ob- served them in young children. I have seen them as early as two and three months in infants de- prived of their nurse's milk; but they are rarely met with until after weaning. (See art. Stomach.) 42. When perforation has taken place, various consequences ensue, according to its situation, and the disease and circumstances in which it has occurred. — (a) The contents of the viscus generally escape through the opening into the peritoneal cavity, and produce acute peritonitis, soon terminating fatally. But this is not a con- stant result ; for the perforation may give rise to chronic peritonitis, under which the patient may continue to linger for several months. I have seen this in two instances — one in an adult, and another in a child. ]\I. Andrai, notices a case in which lumln-ici escaped into the peritoneal cavity through the opening, and occasioned merely an obscure lingering irritation. — (b) 'J"he perforation may communicate with the cellular tissue outside of the peritoneum, as when the caecum and rectum are penetrated, and give rise to abscesses and fistulas. I have referred to cases of this description, one of which occurred in my own practice, in the article on the Cecum. — (c) In other cases, the gastro-intestinal con- tents do not pass into the abdominal cavity, owing to the circumstance of the peritoneum having, previously to its perforation, become in- N n 2 548 DIGESTIVE CANAL — Morbid SEcnExioNs in. flamed, so as to throw out coagulable lymph on its surface, which excites inflammatory irri- tation in that part of it directly opposite, and thereby forms adhesions between them, and shuts the opening. When this occurs, other conse- quences ensue. — a.. Tire adhesion may take place to some part of the peritoneum reflected over the abdominal parietes, and the ulceration, by penetrating it, may also occasion abscess or fistula between the peritoneum and the walls of the abdomen. Osianuer (Denkw'urdigkeiten , b.i. p. 99.) has recorded a case of this description; and Nebei,, Lieutaud, Vetter, Godot, Jac- QuiNELLE, and B. GoocH, instance others, in which the inflammation and matter thus formed advanced externally and opened in the left hy- pochondrium, a fistulous communication- being thus established between the stomach or any other part of the digestive tube and the external surface. In this way artijicial anus or Jistula i)t ano, commonly arises, when some part of the mtestinal canal is perforated. — j3. Owing to adhesion having taken place between the surface of some viscus and the penetrated peritoneal coat of the canal, the former either stops up the opening, preventing the escape of the gastro- intestinal contents into the abdominal cavity, or becomes itself penetrated by the ulcerative pro- cess extended thither. Meckel (Epist. ad Hal- LER. Scrip, vol.iii.) found the opening in the stomach closed by the omentum accreted over it. Zeviani, CiiAussiER {Bull. de I'Ecole de Med. de Paris, 1808, p. 41.), and Leroux (Journ. de Med. Cont. vol.xv. p. 239.), observed it covered by the spleen, into which the ulceration had par- tially penetrated. Keppelhout (^Sect. Cadav. Path. L. B. 1805, p. 19.) met with a similar connection with the liver. M. Andral saw an ulcer in the ascending colon, the bottom of which was formed by the substance of the kidney ; and M. Rayer, a perforation of the duodenum stopped by the liver. Perforations of the sto- mach may be closed not only by the liver and spleen, but also by the diaphragm and transverse colon, and even may be likewise carried through either of them. M. Andj'.al records cases in which the perforation passed through the sto- mach and diaphragm into the thorax, and also into the substance of the lungs, the serous sur- faces of each having previously adhered : and a communication had thereby been established be- tween the cavity of the stomach, and either that of the pleura, or that of the bronchi. When the viscus which becomes accreted to the surface of the perforated portion of the canal has itself a cavity, then a .communication generally takes place between them ; thus Camper (^Mem. sur le Prii, &;c. t. v. n. 9.) met with an opening into the bladder. Indeed, communications thus formed with either the bladder, uterus, or va- gina, are not very rare. A case occurred lo M. CiiOMF.L (M. Andrai.'s Aiiat. Path. vol. ii. p. 136.), in which the duodenum communicated with the colon, through the gall-bladder, which adhered to both ; and cases are not very un- common, in which perforations and accretions of the serous surfaces of several parts of the digestive canal take place, and openings are thereby directly formed between them. 1 have seen communications thus existing in the same case between opposite parts of the small intes- tines in two places, and of the small and large intestines in three places. In another instance there existed no less than four or five such com- munications, each of which was of course a double perforation. These changes have been observed by me in four cases in children ; and in all, the perforations were associated with chronic peritonitis. Dr. G. Gregory (Trans, of Med.-Chirurg. Soc. vol. xi. p. 258.) has re- corded a similar lesion ; and an instance, in which it occurred in an aged person, is given in the third volume of the Bulletins of the Faculty of Medi- cine of Paris. Dr. Abehcrombie found an ul- cerated passage existing between the stomach and colon, feculent vomiting having preceded death; Mr. A. Bellot detected several per- forations, forming openings between the small and large intestines, and into the abdominal pa- rietes of an adult female ; and M. C. Broussais observed carcinomatous ulceration and perforation of the stomach, opening into the vena porta. 43. In all these, excepting the second perfora- tion, by which a communication is established be- tween contiguous portions of the canal, as in the cases now alluded to, the opening takes place from within outwards. But the perforation may be produced in an opposite direction, as where ab- scesses of the liver burst into the stomach or colon. ]M. Cayol {Journ. de Med. by Corvisart, &c. vol. xiv.) mentions a case in which an abscess in the kidney burst into the ascending colon. Abscesses, perforating, and opening into, the rectum, that had formed, in one case be- tween it and the uterus, and in another between it and the sacrum, during convalescence from fever, have occurred in the practice of the author. 44. iii. Morbid Secretions in the Diges- tive Tube. — These may form on the free surface of the villous coat, or in the substance of the parietes of the canal. — A. The secretions and Jluids found on the internal surface of the villous coat are — 1st, the natural secretions altered from the healthy state ; and, 2d, those which are altogether adventitious and foreign to this situation. — (o) The mucous secretion and the aqueous and gaseous exhalations may be increased in quantity, and otherwise modified. — a.. The mucus covering the villous surface is often greatly increased in quantity, and modified in consistency, either throughout the tube, or in portions of it only ; this membrane itself being commonly of a bright red, and more or less injected ; or of its natural colour, or sometimes even paler than usual. — 13. The aqueous exhala- tion is also occasionally increased on the villous coat, and the vessels more or less congested, par- ticularly the veins. The existence of increased aqueous exhalation, connected most probably with determination of the circulating fluid, is evidently the chief pathological state in cholera and serous diarrhoea. But vascular congestion is not always found upon dissection in those cases, especially if the person have died of some other disease, of which serous diarrhoea was a con- tingent symptom. In these the parietes of the intestines arc generally attenuated and pale, and contain more or less of a serous, yellowish, or colourless fluid. — y. The gaseous Jluids, of which the digestive canal usually contains more or less in health, are often greatly increased, and are sometimes a very inqwrtant symp- DIGESTIVE CANAL — Morbid SEcnETiONs ix. 549 torn, although not constantly or generally con- nected with any one pathological state. In- creased exhalation of the intestinal gases is, however, a very frequent, although not a con- stant, result of inflammatory irritation of the villous membrane, or of disease of Peyer's glands; but it may also proceed from extreme debility, manifested especially in the organic nervous system, and by the bloodless state of the digestive canal found after death. Hysteiia, hypochondriasis, asthma, flatulent and lead colic, rabidity, and other aflfections, are cliaracterised by great accumulations of air in the intestines, without any sign of vascular irritation of the villous surface. These gaseous collections are generally greatest in the large intestines ; but they also take place in the stomach and small intes- tines, particularly in the latter, as observed in the last stages of typhoid fevejs, and of various other acute diseases. The meteorismus of fever has been imputed by BnocssAis to disease, especially ulceration of the intestines ; but, although the connection is frequent, it is by no means general, and, even when observed, both pathological states are merely associated effects of the same anterior change, viz. diminished vital power, expressed particularly in the organic nervous system and viscera influenced by it. The formation of air in the digestive canal has been chiefly attributed, in the article on Colic, to exhalation from the villous surface. The flatus may also arise partly from the chemical reaction of the diversified and heterogeneous substances taken into the stomach, as they are acted upon by the secretions and are propelled along the canal, and a portion of air is commonly swallowed with the ingesta. 45. (6) TheJJuids and secretions foreign to the digestive canal in health, but which are some- times found in it, are, blood, pus, coagulable lymph, melanotic matter, tubercular matter, con- crete or fluid fatty matter, a thick albuminous substance, calculous concretions, and worms. — a. Blood is occasionally found in the stomach and intestines, both in a fluid and coagulated state, and in very variable quantity. The causes of its effusion on the free surface of the villous coat are — 1st, Atony of the extreme vessels, and diminished vital cohesion of the coat ; — 2d, A mechanical obstacle to the return of the blood, particularly in the vena portae ; — 3d, Inflamma- tion or irritation of the villous membrane in various states of intensity and morbid association, supervening either spontaneously, or caused by irritating ingesta ; —4th, A morbid or dissolved state of the blood itself, most frequently, how- ever, associated with the 1st state, as in scurvy, the black vomit of yellow fever, and purpura haemorrhagica ; — 5th, The erosion of the coats of a blood-vessel in the seat of an ulcer ; — 6th, Disease of the coats of a blood-vessel, independ- ently of any lesion of the villous coat; — and 7th, from having been swallowed, as in cases of excessive hasmoptysis, haemorrhage from the fauces, &c. When the sanguineous effusion proceeds from the third source, it may be either very slight, the mucus covering the villous sur- face being merely tinged with it, or very con- siderable, according to the various concomitant circumstances under which it may take place. Its _^'t/i and si.i (A sources are the most rare, but not so rare as M. Andral supposes, the sixth being entirely overlooked by him. M. Prost, Dr. Abercrojibie, and others, have detailed in- stances of the former ; and a case of the latter, from atheromatous deposit in the coats of an arterial vessel disposing it to rupture, very recently occurred in my own practice. {See Hemorrhage — from the Digestive Canal.) 46. (3. Puriform matter is but rarely met with on the villous surface, instead of the mucus usually secreted by it, in any appreciable quan- tity. It is much more commonly found in the follicles, either in an inflamed state of this coat, or independently of any marked injection of its vessels. When the follicles contain this fluid, they generally present the appearances already described (§ 22. c, 36. e.), especially the conoidal and pustular state, the puriform matter escaping on incising them. — y. Dr. Monro describes a brown fluid like cocoa, which he has seen in some in- stances voided in large quantity during life from the stomach. In a fatal case, this viscus was very large, and half filled with this fluid, its coats and adjoining viscera being sound. — J-. Coagulable lymph, in various grades of density, and in the form of false membranes, is also sometimes found on the gastro-intestinal villous surface ; but not so often as in the mouth, pharynx, and oesophagus. I have observed it most frequently in the form of whitish flocculent or thin membranous-like patches and shreds, covering the inflamed or partially injected sur- face, in fatal cases of scarlet fever, with gastro- intestinal symptoms. In sub-acute inflammatory affections of the digestive organs, either with or without diarrhoea or dysentery, as in the cases described by Baillie, Powell, Good, Annes- LEY, Lelut, Billard, &c., the false membrane is occasionally so complete as to form a tube of various dimensions, which, when evacuated with the stools, has been mistaken for a sphacelated portion of intestine, or for its mucous coat. Dr. GoDMAN found it covering the whole villous sur- face of the stomach ; and Mr. Howship remarked a similar production in a child that had acci- dentally swallowed boiling water. M. Andral thinks that it may sometimes proceed from a morbid secretion of the mucous folliees; but, as in the other situations in which it is seen, it evi- dently arises from inflammatory action of the villous or mucous coat itself, the exhalant vessels of which, in the inflamed state, throw out co- agulable lymph instead of their usual watery or serous exhalation ; these vessels also sometimes secreting puriform matter, in a modified form of disease. — 6. The gastro-intestinal mucous coat sometimes exudes a black matter, the melanosis of modern writers. This substance exists either in a fluid form, on the free surface of the mem- brane, or combined with its tissue, or in both forms in the same or different parts of the canal. When merely deposited on the free surface of this coat, it can generally be washed off; the matter composing it staining linen. But when It is infiltrated or combined with this tunic, it cannot be removed by ablution, and it does not stain linen. It is most apparent at the bottom of the lacunae in the duodenum, or in the sum- mits of the villi, or in the margins of the orifices of Peyer's glands, or in the bottoms of small ulcers. — ij, Tuberculons ma»er is sometimes found in the follicles, the intestines being studded with N n 3 550 DIGESTIVE CANAL — Complicated Productions in. n number of small white bodies, seldom exceed- ing the bulk of a pea. The substance they contain is concrete, whitish, and friable. JM. Andral remarks that these tumours are merely the follicles altered in their nutrition and secre- tion ; the afi'ection being a genuine acne of the mucous membrane. — n. Fatty matter is very rarely met with in the intestinal canal ; but seve- ral cases are recorded in which it has been passed in a fluid and concrete state during the advanced stages of chronic diseases. — &. A thick albumin- ous matter is generally found covering the villous surface of the small and large intestines of those who die early in the Pestilential Cholera. (See art. Pestilence.) Of Calculous Concretions and Worms in the digestive canal, a detailed account is given in their respective articles. 47. -B. Morbid productions in the tissues com- posing the ■parietes of the digestive canal. — a. Blood is sometimes effused in the sub-mucous cellular tissue to an extent varying from a line to some inches, often without any change in the mucous membrane, and generally from the same causes as have produced its effusion within the canal (§45.). — b. Serous injiltration, or oedema, of the cellular tissue connecting the different tunics and muscular fasciculi with each other, is sometimes observed in various degrees, the thick- ness of the parietes being thereby proportionately increased. The fluid occasionally raises up the villous surface in the form of blisters or small vesicles. (Edema is most frequent in the large intestines, the villous membrane being remark- ably pale, or more or less injected and variouslj' coloured, or softer than natural, or even more consistent, or ulcerated, either independently of disease of its follicles, or in the seat of Peyer's glands, and with enlargement of them. The cellular tissue itself, the seat of serous infiltration, may be unaltered or softened, or hypertro- phied, thickened, and indurated. In the latter case, it is, in some places, dry, and grates under the scalpel, without yielding any fluid; and in others, there are considerable deposits of serum, or of a gelatinous fluid of various consistency, constituting one of the more frequent states of what is usually called scirrlius, as met with in the pylorus or cardia of the stomach, or in the rectum. OEdema, in the different forms now enumerated, is often the chief lesion observed after chronic diarrhoea and dysentery, and pro- longed affections of the stomach. 'The exhala- tion of serum may also occur within serous envelopes or cysts, developed between the villous and muscular coats, and varying from the size of a pea to that of an egg. — c. Gaseous exhalation may take place between the coats of the diges- tive tuhe soon after death, from incipient decom- position ; but a case observed by M-.T. Ci.oquet {Bullet, de la Faculte de Med. vol. vii. p. 267.) shows that it may also supervene during life. — d. The secretion of fat has been observed in one instance byM.ANDRAt. in the sub-mucous cellular tissue, the coats of the small intestine, in which it formed a small tumour, being quite aoMnd. — e. Purulent matter is seldom found in the substance of the gastro-inteslinal tissues, and then only in small (juantity in the sub-r.iucous and connectingcelluliir substance — forming either one or more collections, which are generally encysted, but also infiltrated in this tissue. These small abscesses should not be confounded with the pastular-like tumours, containing pus, formed by inflamed follicles. They do not ap- pear to give rise to any peculiar symptom. — /'. Tubercular matter is secreted more frequently than pus in the gastro-intestinal parietes, particu- larly in the lower part of the small intestine, and generally in the cellular tissue connecting the coats. It forms small whitish tumours, owing to the colour and form of the deposition being perceptible through the elevated villous or peritoneal membrane, varying from the size of a millet seed to that of a pea. They may be very few or numerous — usually the latter in persons who have had tubercles in the lungs, particularly at the margins and bottoms of ulcers. They may exist long without giving rise to any symptom referrible to the digestive organs, until the mu- cous membrane becomes affected, when diar- rhoea— generally chronic and intermittent — is the usual result. The membrane over and around these tubercles may be unaltered, or injected and inflamed, variously coloured, softened, ulcerated, &c. The softening and breaking down of the tubercular matter, and the attendant ulceration, may also terminate in perforation, as in the case published by M. Legallois. — g. Melanoid matter is occasionally deposited in the cellular tissue connecting the coats either in a diffused or disseminated state, or in isolated spots, forming small projecting tumours. — h. Osseous matter is very rarely deposited in any part of the gastro- intestinal canal. De IIaen (Rat. Med. vol. iv. cap. i.), however, met with it in the stomach ; and Short (Edin. Med. Essays, vol.iv. p. 353.), in the colon and rectum. 48. iv. Complicated Productions generally THE ADVANCED StAGES OF MoRBID NuTRITION AND Secretion conjoined. — The morbid form- ations now to be mentioned, are chiefly the ad- vanced stages of two or more of the morbid changes already described ; and, as might be in- ferred a priori, so nearly approximate to each other in their external characters, as well as in their anatomical and chemical elements, as often to render it a matter of difiiculty to distinguish between them, unless in an arbitrary manner. From this gradual approximation of the appear- ances of organic lesions to one another has arisen thediflicultyofdescribing and arranging them ; and from attempts at both having been made without being aware of this circumstance, or adverting to it sufficiently, or from endeavouring to es- tablish, in respect of morbid changes, that which has been successfully performed in regard of the living productions of nature, and of which the former does not, but the latter does admit, — fiom describing as unvarying species what are constantly changing vaiieties, — has arisen much confusion and misconception. 49. A. Local or partial hypertrophy of the villous membrane, forming the excrescences al- ready noticed (§ 27.), seems to be an early stage of several changes, which have been variously denominated, according to the appearances they have presented, and which have evidently arisen from alterations of their nutrition, and interstitial secretion, probably occasioned, as well as modified, by local irritation, constitutional vice,. tempera- ment, diathesis, age, and vital endowment. — (n) The simplest of these productions seem to be the DIGESTIVE CANAL — Complicated Productions in. polypous or JJeshy mass, which may assume either a pyriform, oval, or spheroidal form ; with a broad or narrow base, and an opaque, dark red or pur- pHsh colour, and various grades of consistency, and of vascularity chiefly as respects its venous circulation. It has been found in the stomach by MoRGAGNi, JMoNRO, Granville, and otiiers ; and in the intestines by Rjiodius, Portal, Monro, &c. ; and has been seen as large as the closed hand. After repeated irritation it may either throw out much blood, or may experience a sloughing or destructive form of ulceration. — (b) Oilier modi- fications of polypous tumours present a lo- bulated, irregular, or fissured surface, with a more decidedly J'loigous appearance and spongy structure than the foregoing, particularly in tlie old and debilitated. They are commonly dark- coloured, abound more with varicose-like veins, are less homogeneous internally, are more cellu- lar, spongy, and vascular, and contain a dark serous or sanious fluid in their areolre or minute cavities. They also bleed more frequently and profusely than the preceding, and discharge a foetid and sanious matter ; and, when they ulcerate, assume the form of a soft fungous mass. They have been mistaken (ov fungus hamatodes, but, although they very closely resemble the baEmatoid form of it, tliey differ from it in oc- curring primarily in the digestive canal, and not simultaneously in other parts, in being more spongy than it, and in containing little or no albuminous or brain-like substance. — (c) A third modification of these polypous produc- tions has been described by Dr. Monro under the name of milt-like tumour. It approaciies in appearance that variety of fungus licema- todes which has been denominated encephaloid, from its brain-like structure. The milt-like form- ation resembles in colour and consistence the milt of some fishes, extends to a large size, and is very slow ia its growth. It is exter- nally of a pale red colour, with an irregular surface, emits an ofl'ensive foetor, and is covered by a fine membrane, in which a number of in- jected vessels are ramified. It has a homoge- neous structure, consisting chiefly of a whitish albuminous secretion deposited in the texture, or under the epithelium, of the villous membrane ; and is imperfectly organised. It is partly mis- cible with water, and is somewhat hardened by spirits ; the surface to which it is attached, and the adjoining parts, being discoloured, vascular, abounding with large engorged veins, and, when it is removed, presenting a villous, honey-comb appearance, besmeared with drops of blood from the torn vessels. The neighbouring lymphatic glands generally participate in the disease, and are filled with a similar matter. This struc- ture difl^ers from the true fungus hamatodes in being found only on the digestive mucous sur- faces ; the latter, in every situation. It is also not so firm and elastic, nor so dark-coloured and purplish, nor of so unequal a consistence in difl^erent parts as that di-icase. IMoreover, it is not liable to fungous ulceration, as the latter is; and while it occurs only in advanced life, the true hKmatoid or encephaloid disease is most com- mon in early and middle age. It is met wiih most frequently in the stomach, and several cases of it are detailed in Dr. Monro's instructive work. 50. B. The various states in which simple 551 tself in scirrhus or scirrho-carcinoma presents the digestive canal have been here ascribed chiefly to hypertrophy of the sub-villous cellular tissue ; and to the modifications of nutrition and secretion superinduced in it by long continued irritation, morbid diathesis, advancing age, and depressed vital power. In the simple states of scirrhus, the hypertrophy of the tissues to which it has been chiefly attributed (§ 30.) may be distinctly traced ; the thickening and induration of the sub-villous cellular tissue amounting in many instances to a fibro-cartilaginous change. But in further advanced stages, or in states of the disease which are diflerent from the com- mencement, a more complex lesion evidently obtains; two or more, and ultimately even all, the anatomical elements of the part bemg involved in this change. Scirrho-cancer is jnost frequent in the pyloric extremity of the stomach, the cardia, the rectum, the sigmoid flexure of the colon ; but it may occur in other parts of the stomach and small or large bowels; and has been described by JMorgagm, Baillie, Pinel, How- ship, JMonro, Chardel, Armstrong, Paletta, Louis, Bavle, R. Prus, Cruveilhier, and Craigie. It appears commonly to commence in the sub-villous tissue ; the mucous follicles, the villous tissue itself, the muscular coat, the blood-vessels, the lymphatics, the nerves, and lastly the serous coat, evincing sensible evidence of change. But, although the former of these are the first to manifest altered structure, there is every reason to infer that the morbid condition originates in the organic nerves of the part, their functions only being at first affected ; and that lesions of circulation, secretion, and nutrition, more or less gradually result, and ultimately the organic changes which are found implicating the above anatomical elements. — (a) The scirrhims and simpler state of this change consists of a greyish white structure, sometimes inclining to yellow, interposed between the internal surface and the serous coat of the part, frequently with lighter coloured and denser fibres — in some cases approaching to the fibro-cartilaginous tex- ture— running through it, and generally in a transverse direction to the' axis of the canal. This change may be confined to the connecting cellular tissue (§ 30.), or be coeval with a simi- lar change in, or progressively implicate, the mucous follicles, and tiie villous or muscular coats. Along with the circumscribed thickening and induration of the part, a contraction of its canal generally takes place ; the villous coat or the mucous follicles of the more prominent places become ulcerated ; and, either consecutively or simultaneously, the interior of the morbid struc- ture is partially softened and disorganised. Sub- sequently to this, a phagedenic, and, in some cases, a fungous form of ulceration rapidly pro- ceeds; death, however, frequently anticipates this change. In rare instances, this structure is much more soft, larilaceous or pasty, and indented by erosions; and is chiefly met with in the rectum. I have, however, seen it once in tiie pylorus.— (h) In another variety, the scirrho-cancerous structure consists of circumscribed and irregular or nodulated masses; and, in the opinion of INIoNRo and Craigie, commences in the mucous follicles. Its internal structure varies, but gene- rally consists of a hard fibrous-like structure or N n 4 552 DIGESTIVE CANAL — Changes of Capacity and Situation. bands traversing a soft or pulpy substance, fre- quently containing a gelatinous or ichorous fluid in minute cavities. (See Cancek.) At a more advanced stage it becomes softer, often in sepa- rate parts, and at last ulcerates, leaving cavities with hardened, scirrhous, and ulcerating sides. It is most frequently found obstructing the ori- fices of the stomach. —(c) Scirrho-cancer of the digestive canal is not always limited, but some- times extends to the adjoining parts ; and it may attack distinct portions, or even other viscera, either simultaneously or consecutively. Gene- rally the peritoneal coat is the last to be affected, and, when implicated, it resembles coarse parch- ment. The ruga; of the internal surface are generally thickened and indurated, or eroded and ulcerated in the centre, or studded with small hard tubercles. There are often fungous growths in the advanced stages, proceeding from the ulcerated surface, which has ragged, unequal, and retorted edges ; the disease being then in an open or carcinomatous state. In some instances the adhesion precedes the ulcerative process ; and thus life continues, though all the coats are destroyed, and the malady is extended to the adjoining parts. When adhesion has not taken place, the ulceration communicates with the cavity of the peritoneum. If the malady be situ- ated so as to interrupt the passage through the canal, the parts above it generally become very much enlarged, at first thickened, but afterwards thinned, and ultimately either ulcerated, per- forated, or ruptured. The thickness and hard- ness of the diseased part vary much. When it is seated in the cardia or the pylorus, it may extend to the diaphragm or duodenum respect- ively, and so on as to other parts. The lymphatic glands in the vicinity are usually enlarged and scirrhous. The progress of the malady is generally very slow ; but in other cases it is more rapid. 51. C. Medullary Saixoma — H, 1GS4. — Git's, son, De Ventric. et Intestiiiis, tr. ii. — J. M. Hii/T/natin, Dis. quisitio Corii Hum. Anat. Pathol. &c. 4to. Alld. 1713. — iSauer, in Halter's Bibliotli. Med. Pract. iii. p. 461. — Peyer, Exercitat. de Gland. Inte.-it. par. ii. p. 80. — Adolphi, De Tunica Intest. Villosa foco Morb. &c. JenjB, 1721. ; et De Colo Intest. Mult. Morb. Nido,&c. Leips. 1718. — //«/- ler, Morbi aliqui Ventric. in Cadav. Observati. Goet. 1749 Lieutaiid, Hist. Anat. Mijd. I. i. observ.400., et passim. — Slimzer, De Morb. Intest. cSrc. Tub. 1767. — £. Sandi/ort, Observ. Anat. Path. 4 vols. 4to. ; L. B. 1777, 8vo. — C F. J.udiuig, Prima; Line;E Anat. Pathol. 8vo. Leips. 1785. — J'icq d'Azi/r, Anat. Path, in Encyd. Me- thodique, 4to. Paris, 1789. — M. Bail/if, The Morb. Anat. of the Hum. Body, 5th ed. Lond. 1818. — A. R. Vetter, Aphorismen aus der Pathol. Anat. &c. Wien. 1803 Prost, Med. Eclairee par I'Observat. et I'Ouvert. des Corps, 2 tomes. Paris, 1804. — Kade, in lieil's Ar- chiv. iv. p. 382. — J. Cruveilliicr, Sur I'Anat. Patholog. &c. 2 vols. 8vo. Paris, 1816. ; et Med. Eclairee par I'Anat. et Phys. Path. cap. i. Paris, 1821; et Anat. Path, du Corps Hum. 1. i. — xv. Paris, 1727-33. — Bruussais, Hist. des Phlegmasies Chroniques, &c. t. ii. cap. 1. et seq. — Jiev. in J. Ju/inson's Med.-Chirurg. Kev. vol. ii. p. 1. — J. Abercronibie, in Ed. Med. and Surg. Journ. No. 84. ; et Dis. of Stomach and Abd. Viscera, 8vo. Edin. 1828. — Tacheron, Kecherches Anat. Pathol. &c. 3 t. 8vo. Paris, 1823. — Andml, Recherches sur I'.Anat. Pathol, du Canal Digestif, &c. in Nouv. Journ. de Med. t. xv. p. 193. ; et Lond. Med. Repos. vol. xix. p. 248. et seq. ; et Anat. Pathol, 8vo. vol. ii. par i. ef seq. — J. B. Palletta, Exer- eit. Pathol. &c. 4to. Med. 1820-7. — ."V^n^ in Diet, des Sciences Med. t. xxxviii. p. 152. — X Bic/iat, Anat. Pa- thol, ed. par Boisseau, 8vo. Paris, 1825 — A. N. Gen. drill. Hist. Anat. des Inflammat. vol. i. p. 493. 659. 691. — HiUin, Nouv. Biblioth. Med. t. ix. p. 4. 328. — fow/'i- loiid. Ibid. vol. v. p. 169. — Billard, De la Mamb. Muquese Gastro-lntest. dans I'Etat Patholog. &c. 8vo. Paris, 1S25. — Bourdon, in Rev. Med. t. ii. 1S24, p. 209.— J. Anneslejf and Author, in Researches, &c. Dis. of Warm Climates, vol. ii. p. 39, et seq. — Craigie, Elements of Gen. and Pathol. Anat. 8vo. 1828, p. 684. — J. Armstrong, Morb. Anat. of the Bowels, Liver, and Stomach, 1. i iiL Lond. 1828. — .4. Monro, Morbid Anat. of the Gullet, Stomach, and Intestines, 2d. 8vo. Edin. 1S30. ii. Lesions of Functio.n and Circulation. — A. Of Function. Biedlin, Lin. Med. 1700, p. 173. — De BUchner, Diss, de Spasmo Intest. Erf 1741. ; et De Consensu Pri- mar. Via.'. &c. Hai.-e, 1764. — Schnetler, De Ardore Ven- triculi, &c. Arg. 1786. — Dannenberg, De Asthenia Ven- triculi et Intest &c. Jens, 1801. — JViesner, De Spasmo Ventriculi. \'it. 1802. — Burdin, in Mem. de la Soc. Med. d'Emulation, t. ii. p. 86. — Cheyne, Dub. Hosp. Rep. vol. iv. p. 252. — Macfarlane, in Glasg. Med. Journ. vol. ii. p. 170. B. Of Circulation. — Blnsius, Observat, Med. Rar. par. i. n. 21. —Hoffmann, Op. t. vi. p. 223. — Stoll, Uat. Med. par. viii. p. 129. — Kaempf, Abhandl. die Krank. heit.d. Unterlebs. &c. passi?n. — Bang, in Act. Reg. Soc. Med. Hafn. vol i. p. 110., ct vol. ii. p. 279. — Bleuland, Descrip. Vascul. in Intest. Tenuium Tunicis, &c. Traj. ad Rh. 1797, p. 14. — Mic/iaelis, Med. Bibliothek, b. i. st. 3. p. 271 . C Wit/ioui pain or other sign.) — Yelloly, in Trans. of Med.-Chirurg. Soc. vol. iv. p. 228 Trousseau, De la Dothinentdrite, &c. in Archives de JNIcd. t. x. p. 67. 169. — A. Grimaud, in Journ. Compl. du Diet, des Sc. Med. July, \S2'd.—Schmidtmann, Observ. Med. t. ii. p. 98—181. — Goldmann, in Archiv. Gen. de Med. t. i. p. 278. — M. A. C. I.andini, in Rev. M^d. t ii. 1826, p. 189. 398. {Of mucous foliicles.) — I.eitret, Archives Gen.de Med. t. xvii. p. 453. (Mur. follicles.) iii. Atropuv, Hvpertropkv, and Induration. — ScAun^, Chylologia, p. 560. (Atrophy.) — i^uwrf, Sepulch. 1. ii. s. vii. ob. 56. (Atrophy.) — Sclienk, Observ. 1. iii. obs. 92. (Atrophy.) — Pohl, De Callositate Vent, ex Potus Spir. Abusu. Lips. 1771. — fetter, Aphorismen, i. p. 172 —191. (Scirrhus to be seated in the cellular tissue.) — Le- velling, De Pyloro Carcinomatoso. Ing. 1777. — Shcrwin, in Mora, of Med. Soc. of Lond. vol. ii. p. 27. — Thilenius, Med. und Chirurg. Bemerk. i. p. 202 — Budolphi, Be. merkungen, th. i. p. 35 — Portal, Mem. sur Plus. Malad. vol. iii. p. 1. — Baitiie, Series of Eng. fas. iii. tab. 6, 7 Cloquet, in Bullet, de la Soc. de M^d. 1810, No. 7. p. 106. _ Fournier, in Sedillot's Journ. de Med. May, 1812 — Dar- luc, Journ. de Med. t. xi. p. 499. — Smyth, in Med. Com- munic. &c. vol. i. No. 29 — Sims, in Ibid. No. 28 — Har- rison, in Mem. of Med. Soc. of Lond. t. v. n. 16. — Halter, Opusc. Path. obs. 26. [From abuse of acids.) — Beit, Ar- chiv. f. d. Phys. b. iv. p. 381. — i/or;i, Archiv. f d. Pract. Med. b. iii. p. 67 Girdlestone, in Med. and Phys. Journ. vol. xl. p. 13 J. Holmes, in Ibid. vol. xxviii. p. 170 ly. G. Burrell, in Ibid, vol, xxx. p. 515 F. Ckardel, Des Degenerat. Scirrheuses de TEstomac. Paris, 1808; et in Quart. Journ. of For. Med. &c. vol. ii — Drake, in Edin. Med. and Surg. Journ. vol. ii. p. 417. — N. Hill, in Ibid, vol, xii. p.275. — Greenhoiu,\n Ibid, vol.xvil p. 375. — Louis, Mem. et Rech. &c. 8vo. p. 120.; et Archives Gt'nerales, &c. t. iv. p. 536. — Bouillaud, in Rev. Med. Mars, 1827 — H. Prus, Recherches Nouv. sur Cancer de I'Estomac, &c. 8vo. Paris, 1828. iv. Softening, Ulceration, Erosion, Perforation, &c Bonet, Sepulchr. 1. iii. sect. xi. obs. 2, 3, 4, &c. — Morgagni, .Sed. et Caus. Morb. ep. xxxv. art. 15. — Du- verney, Mem. de I'Acad. des Scien. 1704. p. 27. — Haasius, De Tunicas Villosae Renovatione, &c. Altd. 1735. — Friend, Comment, de Febribus, p. 142. — Hamberger,in Halter's Coll. Diss. Pract. vol. iii. n. 98.' — R. Lowis, Edin. Med. Essays, vol. i. p. 291. — I'an Swieten, Comment. &c. ad ^^955. — D. Monro, Essays Phys. and Lit. vol. iii. p. 516. — Gmelin, Ulc. Intest. Casus, &c. Tub. 1759. — Lieutaiid, Hist, Anat. Med. L ii. obs. 719. — Geqffroy, Hist, de la Soc. R. de Med. ad 1780, 1781, p. \m.—Bang, Act. Reg. Soc. Med. Hafn. t. i. p. 280 Fearon, Mem. of Med. Soc. of Lond. vol. ii. n. 38. — Field, in Ibid. vol. vi. p. 1'.,'3. — Burrouis, in Med. Facts and Observ. vol. v. n. 17. ; et in Trans, of Irish Acad. vol. iv. n. 12. (Fistula open, extern.) — Luchtmnns, Diss. Med.-Chir. Miscel. Ultr. 1783. — HalUr, Opusc. Pathol, obs. 28. — Cruick- shanks, Anat. of Absorl). Vessels, &c. p. 113. — fan der Kolk, Observat. varii Argument. &c. Gron. 1793. — Go- dot, in Journ. de Bled. t. xl. p. 145. — Jacquinelle, in Ibid, t. xc. p. 209. — Haile, in Ibid. Contin. iv. p. 103.— - AVic/, De Ulcer, in Ventr. Penet. &c. Ileid. 1782. — Stoll, Rat. Med. i. p. 266., ii. p. 409, vii. p. 164. — J. Hunter, Philos. Trans, vol. Ixii. p. 444."; et Observ. on Animal CEco- nomy, 2d edit. p. 226. — B. Gooch, Med. and Surg. Ob- serv. &c. ; et in Edin. Med. Comment, vol. it p. 373 C. Smyth, Med. Commuuicat. vol. vii. p. 467. — Ada7tts„On Morbid Poisons, &c. 2d ed. p. 30 Ludwig, De Lum- bricis Intest. Perforant. Lips. 1792. — J. P. Frank, Acta Institut. Clin. Viln. ann. ii. p. 7. ; et De Cur. Horn. Morb. 1. vi. par. i. p. 131 M' Lagan, in Ed. Med. Com. ment. vol. ii. p. 78. — Penada, Saggio d^Osservazioni, t. i. — Keppelhout, Sect. Cadav. Pathol. 1805, p. 19. — ^. Ge- rard, Des Perfor. Spontanees de I'Estomac, &c. 8vo. Paris, 1803. — J. Moore, in Med. and Phys. Journ. vol. iii. p. 511. — ^. Bellot, in Ibid. vol. xxii. p. 392.— JK. Cooke, Ibid. vol. xxx. p. 337 G. E. Male, in Ibid. vol. xiii. p. 164. — Chaussier, Halle, et Leroitx, in Bullet. del'Erole de Med. de Paris, 1808, p. 41. — .4. Burns, in Edin. Med. and Surg. Journ. vol. vi. p. 137.' — Heiin, in Horn's Ar- chiv. Jan. 1812, p.\2. — Hanius, in Ibid. 1812, p. 162.— F. Davis, in Lond. Med. Rev. vol. v. p. 258. — Jaeger, in Hufeland u. Himly's Journ. d. Pract. Heilk. May, 1811.; et in Lond. Med. Repos. voL x. p. 416. — Gistren, in Hufeland u. Hiriily's Journ. A. Pr. Heilk. July, 1811.— Michaelis, in Ibid. Feb. 1812, p. 45 Marcus, in Ephe- merid. d. Heilk. b. i. st. 2. — Lallemand, Otwerv. Path. &c. 8vo. Paris, 1818, 4to. — StUtx, in Hufeland's Journ. d. Pr. Heilk. b. xxiv. p.H3. — Schenk, in Ibid. b. xxvii. p. W.—Zeller, De Nat. Morbi Ventric. Infant. Perforan- tis. Tub. 1818 Breschet, in Journ. rie Med, Contin. t. xi. — F. Rhodes, in Horn's Archiv. Sep. et Oct. 1822, p. 238. — Laisne, Consid. Med. Leg. sur les Erosions et Perfor. de I'Estomac, 8vo. p. 163. — C. Broussais, Bullet. de la Soc. Philomath. Sept. 1823, p. 156 Haoiland, in CambridgelPhilosoph. Trans, vol. i. p. 287 J. Gnirdner, Cases of Erosions and Perforations of Aliment. Can. &c. Trans, of Edin. Med.-Chir. Soc. vol. i. p. 311. [An able memoir.) — P. C. A. Louis, Jlem. et Recherches Anat. Path. &c. 8vo. Paris, 1826, p. 1. 136 ; et in Archives de Med. t. i. p. 17., et t. v. p. 5. ; et Lond. Meil. Repos. vol. xxii. p. 154. — Legallois, in Archives de Med. vol. vi. p. 68, — Troillet, in Ibid, t. ix. p. 5. — Ebermaier, in Ibid. t. xviii. p. i9.1. — Rullier, in Ibid. t. ii. p. 380. — L.isle, in Ibid. t. XX. p. 433. — Chaussier, in Nouv. Journ. de Med. t. iv. p. 295. — Hewett, in Med. and Phys. Journ. vol. Ivi. p. 97." — Chambers, in Ibid. p. 354. ; and in Lx)nd. Med. Gazette, vol. ii. p. 513. — Bright, Medical Reports, vol. i. 4to. p. 178 — W. E. Horner, in Amer. Journ. of Med. Scien. Feb. 1829, — Laennec, \n Rev. M^dicale, t. i. 18l'4, p. 379. — Caniiet, in Ibid. t. iv. 1825, p. 527. ; et in Archives do Med. t. xviii. p. 427. — Sestii, ionrn. Heb- domad, de Med. t. i. p. 216. — Pilschajl, Edin, Med. and 556 Surg. Journ. vol. xxvi. p. 451. — Glasgow Med. Journ. vol. ii.p. 341 Hediard, Journ. des Progres cles Scieii. Med. t. xvi. p. 250 E. Blasius, in Rust's Magazin f. d. Gesamm. Heilk. &c. vol. xxvii. ; et Journ. Hebd. de Med. t. iii. p. 69. {Gelatiniform softening.)— Cioquet, Nouv. Journ. de Med. t. i. ; et Lond. Med. Repos. vol. x. p. 332. — Billard, Nouv. Biblioth. Med. t. i. 1826, p. i'i.— niese- mann, Lond. Med. Repos. vol. xxv. p. 168. — Dupny, in Ibid. vol. xxvii. y>- 315. — Rogers, in Ibid. vol. xxviii. p. 249. —B. Brown, in Ibid. vol. xvii. p. 108. — Carter, in Ibid. vol. xxi. p. 371. — M. Workman, in Ibid. vol. xix. p. 208.— Co«/c, in Ibid. vol. xx. p. 2V2.—Crampton, Trans, of Irish Col. of Phys. vol. i. part i. ; and in Trans, of Med. and Chirurg. Soc. vol. viii. p. 228: — C/ievalier, in Ibid, vol. V. p. 93.— Elliotson, in Ibid. vol. xiii. p. 26.— Travers, in Ibid. vol. viii. — Abercrombie, in Edin. Med. and Surg. Journ. vol. xxi. \).6.— Laennec, R^v. MM. Mars, 1824. — Carswell, in Edin. Med. and Surg. Journ. vol. xxxiv. p. 283. {An excellent memoir.) V. Morbid Secretions and Productions. — Riverius, Observ. cent, i Fubricius Hildayius, cent. ii. obs. 64. — Morgagni, Epist. xxxv. art. 25. — Blasius, Obs. Med. Rar. p. vi. ob. 3. — Sand, Deraro Ventric. Abscessu. Reg. 1701. — Sten%cl, De Stcatomatibus, &c. Viteb. 1723. — Hasen- oehrl. Hist. Febr. Petech. p. 67. — Niesky, De Humor. Intest. Ten. Path. Consideratis. Halae, 1766. — ,Sproegel, De Morb. Humorum in Intest. Hal. 1766. — Holier, Opusc. Pathol, obs. 27. — De Haen, Rat. Med. p. vi. cap. 4. ^ 10. — Watson, in Med. Conimunicat. &c. vol. ii. — Oberteuffer, Mus. d. Heilk. b. i. No. 16. — Osiander, Denkwiirdigheiten, i. p. 403 — M. Baillte, in Transact, of Coll. of Phys. Lond. vol. v. p. 166. — R. Powell, in Ibid, vol. vi. p. 106. — Martinet, Journ. de Med. t. xxviii. p. %i4. — Godman, Philad. Journ. of Med. May, 1825.— Seymour, Trans, of Med.-Chir. Soc. vol. xiv. p. 222. — Lherminier, in Ed. Med. and Surg. Journ. vol. xxvi. £14. — Bourgeois, in Archives de Med. t. xi. p. 137. — Annesley, Sketches of Dis. of India, chap, on Dissect, in Cholera, 2d ed. 1S29. — Also the works of Chardel, Vetter, Monro, Louis, R. Prus, Cruveilhier, Artnstrong, Herat, and Abercrombie, already referred to. vi. Changes 01' Capacity and Position. — Bartholin, Hist. Anat. cent. iv. n. 40. — Bonet, Sepulchret. 1. iii. sect. 14. — Plater, Observ. 1. ii. p. 439., et I. iii. p. 656 Kerkring, Spiceleg. Anat. obs. 50. — Schacher, De Morbis a Situ intest. Praeternat. &c. Lips. 1721. — Morgagni, Epist. xxxix. art. 15., liv. art. 1.5. — Walther, De Intest. Angustia, &c. Lips. 1731. — Hamberger, Observ. Clinic. Jen. 1754, p. 10. — Meckel, in Mem. de I'Acad. de Berlin, 1758, p. 68. — Felix, De Intestin. Intus-susceptione. Lug. Bat. 1769. — Lalouette, Hist, de la Soc. R. de M^d. ann. 1776, p. 267 Loesecke, Observ. Anat. &c. p. 29—37. — Huxliam, in Philos. Trans. No. 382. — Van Doeveren, Specimen. Observat. &-c. p. 76. {Diverticula.) — Troesckel, De Morb. ex alieno Situ Part. Abd. &c. Franc. 1754 Base, De Diverticulis Intestin. Lips. 1779. — Lieutaud, Hist. Anat. Med. obs. 27. — Hasenoehrl, Hist. Morb. Epidem. p. 60. — Bang, Diarium, ii. p. 367. ; et in Act. Reg. Soc. Med. Hafn. vol. i. p. 243 Callisen, in Ibid. vol. i. — Stoerck, Annus Med. i. p. 126, et ii. p. 268. — iJoM, Diss. Path. Intest. Coli, p. 14 De Haen, Rat. Med. par. x. \ i. — Mollinelli, in Comment. Bonon. t. ii. p. 1. — Sandi- fort, Observ. Anat. Path. 1. i. c. 10., et 1. iii. cap. 3. p. 59., 1. iv. cap. 2. p. 28. — Schneider, Clin. Geschichte, b. v. p. 86. — Anderson, in Ed. Med. Comment, vol. ii. p. 302 Hal- ter, Opusc. Path. obs. 27 Mursinna, N. Journ. f d. Chirurg. b. i. p. 241.— J. P. Frank, De Cur. Horn. Morb. 1. v. par. ii. p. 391., et 1. vi. par. i. p. 53 Letlsom, in Philos. Trans, vol. Ixxvi. p. 305 — Rahn, Diss. Pass. Ili- ac£E Path. Halae, 1791. — Lee, in Lond. Med. Rev. June, 1801. — Francis, in Med. and Phys. Journ. vol. xxxv. p. 436. — Portal, Anat. Mod. t. v. p. 180. 208. — Treuner, in Stark's N. Archiv. &c. b. i. p. 241., b. ii. p. 91. — Mezler, in Hufeland's Journ. d. Pr. Heilk. July, 1811, p. 24. — Andral, Journ. de Physiol. AoQt, 1822. — J. Davies, Lond. Med. Repos. vol. xxii. p. 469. — Micha'elis, in Ibid. Feb. 1812, p. .39. — J. F. Meckel, Beitr. b. i. h. I.; et Ccmp. Anat. Path. t. i. p. 553. — Mo/lison, in Trans, of Med. -Chirurg. Soc. of Edin. vol. ii. p. 249. — Rostan, Ar- chiv. Gen. de Med. t. xix. p. 332. DISEASE — THE Causation and Doctrine of. — Ci.AssiF. General Pathology; JEtiology and Pulhpgeny. 1. I. Piti.LiMiNARV Remarks. — It is of great importance to llie tyro in medicine to acquire general principles, derived from a careful and comprehensive investigation of disease; that may guide him in the jiractioal course lie has to pur- sue. Nor is it of less moment to the experienced to find inferences and doctrines calculated to serve aa the basis of therapeutical indications deduced for him even from those phenomena DISEASE — Causation and Doctrine of. which have become familiar from frequent obser- vation, or have appeared trivial when viewed in an imperfect or false light. It is by an intimate acquaintance with morbid actions, in respect of their origin, of their conditions at the time of ob- servation, and of their tendencies, and by a know- ledge of principles derived therefrom, that we are chiefly enabled to direct our course through those numerous difficulties which beset us in the practical discharge of our duties, when we are insufficiently aided by published authorities, or imperfectly guided by the results of personal observation. Even the most experienced will often find examples of disease in some one or other of the numerous combinations or succes- sions it is constantly assuming, of which memory will not furnish sufficient examples, by the re- sults of which he may be guided ; and will fre- quently have to recur to those principles, both doctrinal and practical, which he had learnt from his predecessors, or had acquired for himself by analysing and recombining the numerous mani- festations of morbid action which have been presented to his view. In endeavouring to sup- ply what is not to be obtained in our medical literature — to satisfy a want which I know has been very generally felt — I have only to regret that my limits will preclude those details, which many might require, and will confine me chiefly to succinct statements, where vivid illustrations might be necessary, and therefore looked for. But some advantage will be derived from ex- hibiting an outline of the subject, in a methodic manner, filled up in its more essential parts with such touches and shades as may be neces- sary to truth of representation, and treated in separate articles where it assumes a practical interest. The origin of disease, and the nu- merous circumstances, which, existing either intrinsically or extrinsically in respect of the frame, modify disease in its progress, are amongst the most important topics to which the mind of the scientific practitioner can be directed ; in- asmuch as upon a due recognition of these, in their individual or joint operation, will depend the justness of our indications of cure, the ap- propriate employment of remedies, and conse- quently the success of our practice, and our own eminence. 2. i. The intimate Relation of the Subject to the Doctrine of Life. — In all speaulations re- specting the causes, the nature, and the removal of diseased actions, the body ought to be con- sidered in relation — 1st, to its organisation and mechanism ; and, 2d, to the influence by which that mechanism is actuated : we should view it as presenting an assemblage of numerous and beautifully contrived parts, all displaying a wonderful and harmonious combination of phe- nomena, — the most perfect and the highest pre- sented to us in the physical world. Some of the finest illustrations of mechanical adaptation and power, and of those principles of action to which the researches of the natural philosopher have been directed, are manifested in the human body. But these manifestations are subject to a finer and yet a more powerful principle than any which govern tlic operations of inanimate matter. The whole organised creation, especially the higher animals, and man in particular, display functions which inanimate substances cannot produce ; and DISEASE — Causation and Doctrine or. 557 although physical actions are observed in their most admirable conditions in the animal body, they are entirely subject to higher functions, to which the term vital, from their nature and object, has been applied. It is one of the chief characteristics of life that it is allied to matter, delicately and peculiarly combined, and differ- ently constituted from inanimate matter, which is kept in a state of cohesion by means of the attraction subsisting between its particles, and which state its chemical affinities dispose it to preserve. Life allied with matter produces com- binations entirely different from those, which the chemical affinities of the elementary particles dis- pose them to assume, and preserves these combina- tions in opposition to their physical tendencies as long as it continues thus associated. Life, then, as I have already contended, is a. superior power ; and this superiority is instantly shown by the readiness with which the elementary particles of that mat- ter with which it is so intimately connected enter into different combinations and forms as soon as this principle is withdrawn. One, therefore, of the chief, although apparently one of the lowest and most generally diffused manifestations of life, is to preserve the textures, or the matter with which it is associated, in a state suitable to the performance of the various functions of the ani- mal. But it also executes higher offices. By a series of beautiful processes, it changes sub- stances foreign to the constitution of the animal to which it is allied, and at last assimilates them into the organised structures which it animates. Thus nutrition and growth are produced, and the decay of the organised body is prevented. 3. Life, in its intimate alliance with the struc- tures of the body, gives rise to various manifest- ations, according to the peculiar organisation of each ; these structures being the instruments of its influence, and the organs by which vital operations are performed. Thus the muscular fibre, endowed with life, displays contractile properties ; the ner- vous fibriles manifest sensibility ; the liver and kid- neys perform their secreting functions ; and so on as respects the various parts composing a perfect ani- mal. The healthy f mictions of life form the study of the piiysiologist, whilst the description of the organs performing them belongs to the anatomist. It is with the derangements of both functions and organs that the pathologist and practitioner are chiefly concerned. The knowledge of structure and healthy function is, however, the basis on which both the one and the other raise a superstructure of great public benefit. The duly instructed pathologist is enabled to comprehend the beauti- ful combination of physical principles evinced by the human body ; and to understand how they are directed by, and made subservient to, life, whether in perpetuating its healthy duration, or in guarding it against agents threatening any of the functions and organs which it endows, or in removing derangements when actually pro- duced. It is from an enlightened recognition of the operation of external agents on vital func- tions, of the relation subsisting between causes and their effects, and of the succession of mor- bid phenomena consequent on primary changes, either vital or organic, that the scientific practi- tioner is enabled to devise suitable plans [and appropriate means of restoration to the healthy state. But, when contemplating the functions of the livmg body, whether in health or in disease, he should not restrict his considerations either to the physical, or to the vital, ])henomena which any particular organ or structure presents. He should recollect that the physical phenomena are under the direction of the vital power ; and that this power, although influenced by mechanical or physical operations, is equally energetic in controlling these operations, as they are, in their turn, of controlling it. The pathologist must be aware that the study of the living frame in health, and more especially in dis- ease, is the investigation of the numerous ma- nifestations of life through the various organs and structures with which it is wonderfully and inexplicably associated. Of life itself we know nothing but through those manifestations, and thus it is through them only we can en- quire respecting its conditions. Although we can- not demonstrate the intimate nature of vitality, and cannot show the peculiar ties which bind it to organisation, we can prove, by an accurate enquiry into the numerous phenomena exhibited by living bodies, and by the manner in which ex- ternal agents modify these phenomena, as well as by the derangements evinced by particular organs and structures, that the connection is intimate, and that causes operating upon the one generally affect the other. This powerful influence of life over the functions of the organs with which animals are endowed, and the manner in which causes modify the conditions of this principle, whether acting immediately upon it, or through the medium of the organisation with which it is allied, are amongst the most important topics which interest the medical practitioner. 4. The conditions of life, as manifested in the functions either of a single organ, or of the frame generally, are liable to change, from in- trinsic and extrinsic causes ; and the resulting alterations modify the structures with which this principle is so intimately and mysteriously re- lated. On the other hand, the states of the animal organs and textures are readily affected by agents acting directly upon their organisation ; and these states of structure modify its vital manifestations, and, through them, the vital en- dowment of the body generally. From this mutual dependence — this reciprocative influence — it will appear that, as life can only be contemplated through the medium of an or- ganised body, so the derangements of such a body cannot be accurately investigated, and the conditions of life — its manifestations in ap- propriate systems and organs — be left out of consideration. 5. ii. Health and Disease defined, — Whilst the energy of the vital endowment is uninjured, and its manifestations in the various systems are in due harmony throughout, and with the state of the structures with which it is associated, all the operations of the body are duly and steadily performed. This is the condition which may be termed health. But as soon as the energies of the vital principle become depressed, excited, exhausted, or otherwise altered, either through- out the body, or in any of the systems or organs by which it is manifested, and when change from the natural condition is primarily produced in any of the structures with which it is asso- ciated, disease supervenes. This aberration from 558 DISEASE — Causation of — Etiology. the natural condition of the vital energies en- dowing the whole, or parts of the frame, or alteration of the textures which these energies actuate, is produced by causes acting sometimes singly, occasionally in combination, and fre- quently in succession. To point out the nature and modes of operation of those causes upon the living body, as far as their natures and effects are known, is the object here proposed. 6. A knowledge of the causes inducing those changes; the nature of the changes produced, as respects either the vital manifestations, or the structural alterations ; the signs or phenomena by which morbid conditions of vital function or of structure are recognised ; are the chief topics which interest the pathologist ; whilst the means of removing those disorders, of averting death, and of alleviating tlie sufferings which they oc- casion, when cure is beyond the reach of our science, are the ends which he proposes to him- self as the reward of his investigations. In order that all that is advanced respecting the various kinds and states of disease may be more clearly understood, I 'propose to give, in this, and some articles that will be referred to, a sketch of patho- logical principles ; so that, by pursuing the plan pointed out in the preface, the knowledge which the tyro ortiie inexperienced reader will have acquired from this part of his systematic course of study, will become serviceable to him in the acquisition of that which should be afterwards brought be- fore iiim. By considering what is simplest and most elementary, and proceeding onwards to what is more complicated and difficult, the mind will be gradually enabled to understand the abstract subjects which will come before it ; the know- ledge successively acquired introducing it to an acquaintance with what will follow. Before treating of the principal states or alterations from the healthy condition of the frame, which con- stitute the disease, I shall point out, Jirst^ the causes which act upon the living body most fre- quently in an injurious manner; secondlii, the morbid conditions themselves which these causes induce ; and, thirdly, en([uire (in a distinct ar- ticle) into the symptoms by which the nature of these conditions are recognised. Hence, disease will appear as a series of changes resulting from causes, between which and their effects there is a most intimate, although not always an obvious, relation. 7. II. Causation of Disease, or Etiology; from aiTia, cause, and Xoyo^, a discourse. Causes act primarily on the vital endowment. — I have already stated, that although the va- rious textures and organs of the body display the finest combinations of mechanism, and tlie most beautiful principles of action presented by tiie physical world, yet they are entirely under the dominion of life, by which only they are ac- tuated, and on which they entirely depend for the functions they j)resent. It is not upon the tex- tures or organs themselves that the causes of dis- ease generally make their first impression ; and even when they are brought in immediate relation to a particular organ or structure of the body, we liave no evidence to furnish that they derange these parts by primarily affecting the machinery of which they are composed ; but, on the con- trary, from the gradual manner in which de- rangemeul is produced, from the nature and effects of the disorder which follows, and nume- rous other considerations, it may be inferred that they make their first impression upon the vital endowment of the organ, disordering the func- tions which it performs under the dominion of life ; and the functional disorder either leads on to the production of further disease, or indirectly to a return to the healthy condition. No doubt, some causes affect at once the organisation of the part, such as many chemical, physical, and mechanical agents ; but the majority modify the vital manifestations of the frame, either in one organ or structure, or in several simultaneously ; and by impeding or modifying, deranging or altogether changing these manifestations, thereby induces effects, which become themselves causes of further disease, until life itself is terminated, or a healthy condition of function re-established. Of the justness of this inference satisfactory evidence will be furnished in the sequel. (See § 63., et seq.) 8. The causes of disease have been variously arranged and named by pathologists. For the better understanding the subject, and writers on disease, the different arrangements and distinctions which this subject has received may be briefly alluded to. Causes have been denominated ex- ternal or extrinsic, and internal or intrinsic, according as they operate upon the body from without or within. They have also been called principal and accessory or concurrent ; disease proceeding chiefly from the former with the as- sistance of the latter. They have also been named positive and negative, from the manner in which they act upon the body ; and by some they have been divided into physical, chemical and physiological, according to their nature. The division, however, which has been most generally adopted is into remote and proximate or imme- diate, according to their relation to the disease oc- casioned by them : the remote being the first in the chain of causation, the proximate or immediate those early changes which they eflPect in the ceco- nomy, and which constitute the primary condition of the disease, or, in other words, the patholo- gical states arising directly from the operation of the remote agents. The remote causes have been divided mXo predisposing&nAexciting or occa- sional causes ; the predisposing being those which influence the conditions of the living functions so as to favour the operation of those occasional or exciting causes whence disease more directly springs. To these two classes I would add a third, viz. determining or consecutive causes, which, being posterior to the others in point of time, determine or call into action the exciting causes, or rather come in aid of, and follow up, the impression made by the latter; and which, without such aid, might have been insuflBcient to produce actual disease, or would have induced it only in a slight degree. 9. It must be obvious that all causes, as well as the effiects they produce, must have an in- timate relation to the condition of the living frame ; and that those which may be quite in- efficient on one person will be powerfully active on another; or which are without efl^ect on an individual at one season, will be very influential at another, owing to the state of vital energy at the time, to the concurrence of other causes, or to exposura soon afterwards to such as will de- DISEASE — Predisposition to — -iEtiolocy termine, or otherwise aid, those which preceded it, and which, although the principal or exciting causes, were insufficient, until thus reinforced, fully to produce the disease. Owing, also, to the condition of the frame, no effect will some- times follow one, two, or even three exciting causes ; and until a greater number are brought into operation, no mischief will often result. The effects produced by various animal and vegetable exhalations on different individuals, or upon the same person at distinct periods, under different states of mind and predisposition ; and by tlie action of numerous concurrent, accessory, and determining causes; fully illustrate this position. It is chiefly owing to a want of knowledge of the doctrine of causation, that so much error and difference of opinion prevail respecting infectious and non-infectious diseases. On the other hand, persons may be so very easily affected, that causes of the slightest nature, and such as are determining or accessory in the majority of cases, are principal in respect of them ; and in- fluences which are usually predisposing are often, in such persons, the exciting causes of disease. Also those wliiclj are remote in their operation on some constitutions, are direct or immediate in respect of others. Examples of this are found in the diseases of the lungs, liver, stomach, and bowels. In considering the agents which afl^ect either the functions, or the organisation, I shall first notice those which generally predispose the system to disease ; next those which excite dis- ease in a direct or immediate manner; afterwards such as are specific, or produce determinate results ; the effects of their operation on the living frame being obvious, and often admitting of being foreseen ; and lastly those circumstances which sometimes determine, reinforce, or call into action, exciting or specific agents. 10. i. Of the predisposing Causes of Dis- ease.— These may be classed — 1st, into such as are proper or peculiar to individuals, and the cir- cumstances in which they are placed; 2d, into such as are not proper or peculiar to individuals, but which may affect various persons, and even numbers of persons, but individually and occa- sionally ; and, 3d, into such as are general, and affect more or less all who are exposed to them. — A. Those which are peculiar to the indicidual, and to the circumstance in which he is placed, and which may be called the individual predis- posing causes, are — 1st, original conformation and hereditary predisposition, age, sex ; tempera- ments, original and acquired ; habit and consti- tution ; trades, professions, and circumstances of life, &c. ; and, 2d, the various external and inter- nal agents, and circumstances modifying the state of the functions, — as previous functional disorder, and convalescence from disease ; and the preg- nant and puerperal states. 11. a. firigiiial conformation and hereditary predisposition.- — ■ It is generally observed, that the constitutions, temperaments, and diathesis of the offspring closely resemble the parent; and that whatever disposition to disorder, whether of func- tion or of structure, the latter may have pos- sessed, is liable to evince itself in the former. From this circumstance having been very gene- rally remarked in respect of certain maladies, they have been termed hereditary. But it must not be supposed that cliildreu are actually born 559 with the diseases of their parents. This is but seldom remarked ; although, in rare instances, I have observed the commencement of tubercles in the lungs of a new-born infant by a consumptive mother ; and small-pox and syphilis are some- times communicated to the foetus in utero, occa- sioning in some instances its premature birth, and even its death, either previously to or about tiie natural termination of utero-gestation. Hy- drocephalus, cataract, and various imperfections of the organ of hearing, and, indeed, of other organs of sense, are not infrequently congenital, or examples of disease from original conform- ation ; but, in such cases, it is rare that the parent is similarly affected at the time, although the hereditary predisposition, as about to be ex- plained, exists nevertheless ; and, as respects the first of these, a tendency merely to the disease could have existed at an early age in the parents. It should be kept in recollection, therefore, that the foetus in utero may be affected by several cachectic, inflammatory, or even febrile diseases, communicated by the parents, or supervenincr accidentally : but, of those which are thus com- municated, even the majority are not, properly speaking, hereditary ; and those which are acci- dental do not depend upon the constitution of the parents, or the ailments experienced bv the mother during the period of gestation. Con- genital diseases a.Te consequently divisible into — 1st, Those which occur in the foetus, without any participation on the part of the parents, — as imperfect developement of organs, inflam- mations, effusions of fluid in various parts, &c. ; 2d, Diseases in which the foetus participates with the mother, owing to their contaminating influ- ence, or their extension throughout her organis- ation, — as syphilis, small-pox, fevers, &c. ; 3dly, Those that affect the foetus from a constitutional liability in one or both parents, — as hydroce- phalus, cataract, tubercles, &c. 12. Most commonly, however, the child is born free from disease ; but, inheriting the constitution and diathesis of the parent, has that condition of function and organisation which renders it more susceptible of impressions produced by the exciting causes of certain maladies. Examples of this may be contemplated daily in respect of diseases of the lungs and brain ; the constitution and functions of tb.ese viscera disposing them or rendering them more prone to experience those derangements by which the parent or parents had been affected. In some instances this pre- disposition may be more strongly marked in the child than in the parent ; and in other cases the predisposition may be extremely slight, and only brought to light by the operation of the more energetic agents. 13. The predisposition of the offspring gene- rally evinces itself more strongly at certain ages than at others, according to the kind of morbid constitution or predisposition which it may in- herit, the causes to which it is exposed, and the nature of the malady which results. Thus, the disposition to hydrocephalus, convulsions, idiotcy, rickets, scrofuh, cataract, &c., is most apparent soon after birth, and at early epochs of life ; to epilepsy, hemorrhage, and pulmonary consumption, about the age of puberty, or previously, or soon after; to gout, asthma, and angina pectoris, in adult and mature age ; to insanity, apoplexy, and 560 DISEASE — Predisposition to — Etiology. paralysis, during the mature or advanced stages of life ; and to various nervous disorders, at more irregular periods. But these diseases do not necessarily supervene, although one or both pa- rents have been affected by them ; and several usually appear in alternate generations. Some occur more uniformly than others. When the predisposition to them is derived from only one parent, they very frequently never make their appearance, unless as the effect of very active ex- citing agents. But even when the predisposition is derived from both parents, and when it may be considered as being thereby heightened, exciting causes are generally required to develope the disorder. 14. b.Age. — Each of the different epochs of existence is more liable to certain diseases than to others. During the earlier periods, there is generally a predisposition to particular disorders, even when no hereditary taint exists. This is partly owino- — (a) to the changes going on in the frame ; (6) to the state of vital manifestation; and (c), to irritations in the alimentary canal. Amongst the changes proceeding in the frame, that either readily suffer derangement or lead to it, the most important are the processes of ossification and developement of the contents of the cranium. These processes are more or less under the do- minion of the vital influence ; and they are more or less disturbed as this influence is affected, in respect either of the system generally, or of particular organs. Hence, rickets, hydrocephalus, inflammations of the brain or its membranes, readily occur. The quantity of blood sent to the brain in early life is another predisposing cause of cerebral affections ; and the readiness with vrhich the functions and even the circula- tion of the brain are disturbed by impressions from without or by irritations from within, becomes, especially when assisted by other causes, a fre- quent source of disease. (See Age, § 10. ; and Dentition.) 15. After the first dentition, and during growth, the powers of life are energetic, as shown by the reaction of the vital functions upon the depress- ing causes of disease ; and are eminently conserv- ative, particularly in resisting hurtful agents. The predisposition is chiefly to inflammatory ail- ments and acute attacks of fever, especially in those who breathe a wholesome air and are suf- ficiently nourished. But the susceptibility to impressions, both moral and physical, is energetic; and irritations, from whatever cause, are gene- rally followed by augmented vascular action, with which the whole frame, owing to the sus- ceptibility of tiie nervous systems, promptly sym- pathises. Hence febrile attacks, eruptive fevers, inflammations, cerebral affections, disorders of the air passages, of the alimentary canal, and lymphatic glands, usually appear. At this period, also, all specific causes readily fake effect, par- ticularly of those diseases which are incidental to childhood ; their full operation, however, destroy- ing the susceptibility to be again affected by them. About the time of puberty and ndn- lescerice various complaints first show themselves, especially some that are inflammatory, and to which there is an hereditary tendency, — as pul- monary consumption, haimorrhage from the lungs, epistaxis, plethora ; and as soon as the body has ceased to grow in height, or the vessels to ex- tend themselves in the direction of their axis, those disorders are still more readily produced by exciting causes. In manhood and mature age, the susceptibility to impressions gradually diminishes, and generally continues to decrease as age .ad- vances. During the former of these periods, hypochondriasis, melancholy, insanity, ha»mor- rhoidal affections, asthma, rheumatisms, and the majority of organic diseases, with the exception of such as are scrofulous, commonly make their appearance. Towards the decline of lije, gout, softening of the brain, apoplexy, paralysis, scir- rhus, cancer, changes in the coats of the blood- vessels, diseases of the organs of sense, affections of the urinary passages, &c. usually supervene. (See Age, and Climacteric Decay.) 16. c. Sex. — There are a great many dis- eases to which both seres are equally liable. Fevers, inflammations, organic diseases, and many others, attack both. But it has been observed, during the prevalence of epidemics, and in un- healthy countries, that the female sex suffers much less than the male. This, no doubt, arises from the more regular habits of females, and their less exposure to the determining or concurring causes ; something may also, perhaps, be attributed to their periodical discharges, which tend to dimi- nish plethora and to purify the circulating fluid — circumstances calculated to impart a partial ex- emption from several diseases, particularly those which are epidemic and endemic, although they may dispose to others. But the conformation and temperament of females, the sympathy exist- ing between their generative organs and the state of the circulation in the brain, the marked sus- ceptibility of their nervous system, and great mo- bility of their muscular organs, dispose them — especially thosein cities and populous towns — to diseases usually denominated nervous. The natural vicissitudes, also, of female life are accompanied with a tendency to particular maladies, especially the periods at which the menstrual discharge com- mences and ceases ; at the former of which, nervous and cachectic complaints — at the latter, diseases of the organs of generation, or of those closely allied to them in function or situation — very frequently appear; — chorea, chlorosis, irre- gular convulsions, hysteric or painful affections, difficult, suppressed, or irregular catamenia, oc- curring about the former epoch ; and chronic inflammations, scirrhus, cancer, and other organic lesions of the womb, disease of the breast, and disorders of the colon or rectum, about the latter period. n.d. Tewperament and diathesis. — The san- guine and irritable temperaments dispose to ple- thora, inflammations, haemorrhages, pneumonia, and to inflammatory fevers. The bilious tem- perament most readily experiences biliary de- rangements, bilious fevers, affections of the stomach and bowels, hypochondriasis, mental disorder, chronic cutaneous eruptions, and various organic derangements of the abdominal viscera. Persons of the lymphatic or phlegmatic temper- aments are predisposed to catarrhal attacks, slow fevers, chronic discharges, dropsies, scrofulous and scorbutic affections, diseases of the joints and glands, and to tuberculous and other chro- nic diseases. In persons thus constituted, the powers of life are languid, the preservative in- fluence and vital resistance feeble, and reaction DISEASE — Predisposition to — Etiology. 661 manifestations of mind, frequently take place ic consequence of the predisposition to them gener- ated in the system by the excessive indulgence of this appetite. It also leads to other maladies, by lowering the vital energies of the frame, and upon noxious causes or agents seldom developed or energetic. The nervous temperament disposes chiefly to convulsive diseases, especially to hy- steria in the female sex ; to mania and insanity, or other derangements of the mental manifest- ations, as hypochondriasis, melancholia, &c. ; to : thereby" rendering them more assailable by the nervous and typlioid fevers, &c. This tempera- ment often modifies the progress of various acute diseases, and imposes upon them a nervous cha- racter. When the temperaments are 7itiied, an accordant predisposition may often be remarked ; as, in the sanguiiieo-bilinus, a disposition to bilious inflammatory fevers, to hepatitis, to inflammations of the alimentary canal, of the brain, and of the serous surfaces, &c., is often manifested. 18. e. Of constitution dind habit of body , ilTna.y be remarked, that a robust constitution generally successfully opposes tRe impressions of many ex- citing causes ; but when once a morbid impression is produced, disease assumes a more active or acute character, and is attended with higher vas- cular action, the powers of life and reaction being great. On the other hand, weak constitutions, and those of a scrofulous taint, are more disposed to disorder, more readily affected by its causes upon the first impression ; and disease in them assumes a more chronic and low form. When persons thus constituted have become habituated to the impression of certain morbid agents, they frequently cease to be affected by them in the usual manner ; as observed in respect of marsh or terrestrial emanations, which seldom give rise to regular attacks of fever in such subjects, but induce organic disease, and sinking of the powers of life. 19. f. Habits of life and profession are amongst the most influential predisposing causes of disease. Whatever profession or occupation requires an active exertion of the powers of the mind, and continuation of that exertion to the neglect of sufficient relaxation and exercise, occasions de- termination of blood to the head, and favours tlie production of inflammation of the brain or of its membranes; especially if such persons live fully or luxuriously ; and, if fever attack them, the head, the liver, and stomach, become severely and dangerously affected ; and, unless the disease be actively treated at its commencement, death may supervene in consequence of serous effusion from the membranes, or of softening of the texture of the brain, rupture of its vessels, or of organic change in the liver, or digestive canal. Those who take active exercise in the open air are gene- rally more disposed to inflammatory attacks of an acute character, to pneumonia, and to rheumatism, than to other complaints ; although in them the predisposition to disease is much less than in other persons. Those who indulge the appetites beyond what the economy requires, — especially the desire for food, and for vinous and spiiituous liquors, — are liable to disorders of the stomach, liver, and intestinal canal ; and, if attacked by fevers, these organs generally are the most seriously affected : such indulgences also dispose to plethora, apo common exciting causes of disease. 20. g. The circumstances of life in which per- sons are placed have a marked influence in favour- ing or counteracting the operation of exciting causes. It has been determined, by exact ob- servations and calculations, that those who enjoy easy or comforiable circumstances are much less subject to disease than tlie poor, the insufficiently clothed, and ill-fed. This arises not only from the former class being less exposed to its exciting causes, but also from the good effects of sufficient nourishment in supporting the energies of life, and thereby warding off the impressions of inju- rious agents and influences. Much, also, is owing to personal and domestic cleanliness, to proper clothing, and to living in airy apartments in healthy localities. Yet, while full living thus wards off many diseases, especially those arising from debility, as low or adynamic fevers, scorbutic disorders, scrofula, dysentery, and various others, it disposes to gout, dyspeptic and nervous affec- tions, particularly to apoplexy and paralysis. (See Arts and Employments.) 21. h. Debility, previous disorder and con- valescence from other diseases, often favour the operation of exciting causes; particularly when the powers of life are much depressed or ex- hausted. In respect of the predisposition occa- sioned by already existing disorder, some doubt may be entertained by those who may have adopted the hastily formed and incorrect dogma that two disorders cannot co-exist in the economy. This may be true in respect of certain febrile diseases, especially those of a specific or exan- thematous kind : but in nearly all beside, so very numerous are the exceptions, that the principle becomes quite untenable ; and, in many cases, even an opposite doctrine may be enforced, par- ticularly in respect of bilious and nervous dis- orders. Thus, when the functions of the stomach are weakened, or those of the liver obstructed, various afl^ections of difl!erent organs related to these, either in function or anatomical connection, are apt to supervene, more especially febrile dis- eases, disorders of the bowels, brain, and lungs. The exhaustion of the powers of life partially continuing during convalescence, also disposes the fiame to the invasion of the exciting causes. On this account convalescence ought always to be watched by the ordinary medical attendant, who, if not allowed to continue his aid for this purpose, should state his reasons for proffering it; and, if it should be declined, the patient will then have himself only to blame. (See Debi- lity, &c.) 22. i. Amongst the other individual predis- posing causes of disease, I may mention the preg- nant and puerperal stales. These states favour, in plexy, paralysis, gout, dropsy ; and in many cases a very marked manner, the occurrence of several directly excite those maladies. Inordinate sexual intercourse is also a frequent predisposing cause of many diseases, and often immediately induces disorder. Pulmonary disease, affections of the heart, epilepsy, mania, and the other disordered Vol. I. maladies, which, owing to this connection, have been denominated puerperal, &c. Although these diseases arise chiefly from the predisposition created by the conditions of the female organs and con- stitution during these states, yet a great difference O 0 662 DISEASE — Predisposition to — Etiology. exists between Uiem as to tlieii necessary depend- ' ence upon these conditions ; for, whilst tliesestates predispose to the invasion of exciting causes deve- loping disease in other circumstances, the maladies that result may be either such as are peculiar to them, as adynamic puerperal fever, &c. ; or such as are not necessarily dependent upon, although remarkably favoured by, them, as inflammations of the uterus and peritoneum, uterine hemorrhage, convulsions, mania, dec. During the puerperal state, also, although the predisposition to fevers, inflammations, consumption, various nervous af- fections, rheumatism, &c., is less strong than it is to the preceding diseases, yet it is greater at this period than at any other. 23. B. Amongst those predisposing causes which are not peculiar to the individual, but which affect persons individually and occasional ty, cer- tain states of the mind deserve the first place. — (d) When the mental energies are depressed by grief, anxiety, disappointment, fear, &c., the powers of life are less able to oppose the debi- litating causes of disease which invade them from without, and of wliich nature all the exciting causes of fevers, particularly those which are spe- cific or contagious and miasmal, generally partake in a most marked manner. On the other hand, when the mind is elevated by success, by hope, by confidence, and the other exciting passions, the depressing causes make little or no impression upon the constitution ; and individuals thus cir- cumstanced almost always escape from diseases ■which readily invade the fearful, the dejected, and the disappointed. There is, perhaps, no circum- stance winch more certainly disposes the system to the operation of the exciting causes of fever, than the fear of being attacked by it ; whilst no- thing fortifies the constitution more surely than a full confidence that the causes of disease will not take effect. 24. (6) Next in importance to mental depres- sions, is whatever lowers the vital energies, or ex- hausts and debilitates the body. Under this head, low diet, fatigue, previous illness, excessive secretions and discharges, want of sleep, and venereal excesses may be classed. (See art. De- bility.) 25. (c) Dress, even, has a very evident in- fluence in creating a predisposition to disease. Too little clothing, particularly in females, favours the occurrence of difficult and suppressed men- struation, pulmonary disease, and disorders of the bowels. It was remarked, during the French revolution, when it was the fashion to dress classically, — which was almost a state of semi- nudity, and more appropriate to the warmer cli- mates of Athens and Rome than to those of the north of France and this country, — that pul- monary diseases, rheumatism, suppressed men- struation, bowel complaints, catarrhs; and amongst the children, who were exposed with naked busts and thin clothing, croup, and other diseases of the air-passages and lungs, were uncommonly prevalent. On the other hand, too warm clothing IS a source of disease, sometimes even of the same diseases which originate in exposure to cold ; and often renders the frame more susceptible of impressions of cold, especially of cold air taken into the lungs. The remarks now offered may be applied to overheated sitting and sleeping apart- menti, and to warm soft b^ds and bed clothing. These relax and weaken the frame, dispose to disorders of the kidneys, urinary and sexual organs, and render the system much more sus- ceptible of injurious impressions from without. A predisposition is thus produced, not only to ca- tarrhs, inflammations, affections of the lungs, and rheumatism, but to irregularity in the menstrual discharge. It has been remarked, that the females in Holland, who generally use very warm clothing, warm apartments, and warm beds, are very sub- ject to excessive menstruation and fluor albus. Females, also, become disposed to various diseases, particularly those affecting the pulmonary organs and heart, from wearing very tight-laced and un- yielding corsets. Indeed, those dressed in this manner can scarcely call the intercostal muscles into action, and can breathe only by means of the diaphragm. The mechanism of respiration being thus impeded, the requisite changes are not fully produced upon the circulating fluid ; and conges- tion supervenes in the lungs, right side of the heart, and parts situated below the seat of pressure. This cause is especially injurious to females during growth and pregnancy ; for the chest should be fully and freely expanded, especially at these periods, in order that the circulation through the lungs and heart may be unimpeded ; and that the blood should experience those changes without interruption, that are required for the develope- ment of the body and of the foetus. The func- tions, not only of the lungs and heart, but of the liver, stomach, and bowels, are materially inter- rupted, and even these organs themselves are removed from their natural positions in respect of each other, by this cause. This is more remark- ably the case as regards the colon, which, by the squeezingtogether of the hypochondria and lateral regions of the abdomen, is thrown into unnaturaal duplicatures ; the passage of the faecal matter along it being thereby impeded, and habitual cos- tiveness, with all its consequences, produced. 26. (d) Amongst the most frequent predisposing causes to disease, is intemperance in food and drink. Too much and too great a variety, particularly of animal food, high seasoned dishes and soups, rich sauces, the too liberal use of vinous, spirituous, or other exciting liquors, overload over-distend, and over excite the stomach ; dispose it, the liver, and bowels to inflammations and functional and organic disease ; directly induce plethora ; and when this state is produced, inflammatory com- plaints in early life, and gout, apoplexy, paralysis, &c. at a more mature age, frequently follow. On the other hand, an unwholesome, poor, innutritious diet, or food of a fluid or watery consistence, pre-> disposes to diseases of debility, by diminishing the powers of life, particularly in the digestive organs, and lessening the vital resistance to depressing causes. Typhoid or adynamic fevers, dysentery, cutaneous complaints, verminous diseases, tuber- cles, scrofula, scurvy, scorbutic dysentery, enlarge- ments and afl^ections of the joints, are common under such circumstances. 27. (e) Excessive secretions and evacuations, although in some instances a disease of themselves, frequently predispose to further disease. The abuse of remedies which have an cvacuant oper- ation, excessive perspiration, fluor albus, too long suckling, and venereal excesses, weaken the powers of life, and expose them to the invasion of exciting causes. DISEASE — PnEDisrosiTiON to — ^Etiology. 563'- 28. (f) Indolence and too great exertion, both predispose to and occasion disease ; whilst mo- derate exercise, especially in the open air, increases the energies of the frame, fatigue generally favours the impression of causes wliich produce acute afTections, as fevers and inflammations ; whilst indolence and sedentary occupations dis- pose to chronic maladies, as congestions of the liver and abdominal organs, to corpulency, apo- plexy, ha?morrhoidal affections, and derangements characterised by diminished tone of the nervous and vascular systems. 29. (g) Sleep. — The laint of this restorer of the vital energies favours the invasion of fevers, inflammations of the brain, and disordered mani- festations of mind ; whilst too much sleep, and the horizontal posture too long retained, or too fre- quently assumed, predispose to apoplexy, paraly- sis, softening of the brain, inflammation of the cerebrum or of its coverings, and affections of tlie kidneys. Many, also, of the causes of acute dis- eases make their impression during sleep, when the body is relaxed, and thereby exposed to their invasion. On tlie oilier hand, earlj' rising pro- motes both mental and corporeal energy. It has been remarked by the actuaries of Life Insurance Companies, that early rising is, of all habits, the most conducive to longevity ; all long livers being early risers. 30. (h) Due regulation of the temper, the passioTis, and desires, and a proper conduct of the imagination, are also necessary to resist exciting causes. Indulgence of temper and passion not only predispose to disease, but also frequently di- rectly excite it, particularly in nervous, irritable, and sanguine temperaments. Diseases of the heart, brain, liver, stomach, and bowels, often ori- ginate in these sources. Uncontrolled passions of every description occasion numerous functional and structural changes, seated chiefly in the viscera of the large cavities. Moderation in eating and drinking, in sleep, in the indulgence of those appetites, feelings, passions, and desires which have been implanted in our natures by a wise Provi- dence for our advantage, gratification, social im- provement, and happiness ; an equable state of the mind, with confidence in our powers ; and the pleasant excitement accompanying a well- regulated course of application to business or study ; are the best means of resisting the impres- sions of injurious agents. 31. C. General predisposing Catises. — Of these, the most universal in their operation are certain constitutions of the atmosphere. Besides the variations in the temperature and dryness of the air, its electrical conditions also vary extremely ; but as yet we are not possessed of sufficient data to enable us to state with precision how far these conditions may predispose to, or directly excite, disease, or what particular change in our bodies result from certain electrical states of the atmo- sphere. But that the electrical conditions, to- gether with a more or less humid state of the air, are connected, in the relation of cause and effect, with the prevalence of disease, is extremely pro- l)able, although not satisfactorily demonstrated. Those conditions which predispose to disease are — 1st, temperature ; 2il, humidity; 3d, these two states conjoined ; and, 4th, electrical conditions of this fluid. Two very important subjects, very intimately allied to these, and which act both as predisposing, exciting, and specific causes, viz. ENDEMIC and EPrDEMic influences, are considered in separate articles. 32. (a) Temperature has a considerable influ- ence in generating a predisposition to certain diseases. Thus, in low states of atmospheric tem- perature the functions of respiration are fully and actively performed, especially as respects the blood ; and the diseases observed in such circum- stances are of an inflammatory nature, are seated chiefly in the respiratory organs, and are charac- terised, unless when the reduction of temperature is remarkably great, or the air very moist, by reaction of the powers of life on the causes which excite them. Very ivarm states of the air impede the clianges which the blood undergoes in the lungs; and, by thereby furnishing abundant ma- terials for the formation of bile, occasion an in- creased secretion of this fluid. Hence bilious diseases are most prevalent during high atmo- spheric temperature. This ettect upon the blood is still more marked, if warmth be conjoined with moisture (§ 34). Under those circumstances, bilious fevers, hepatic diseases, dysentery, diar- rhoea, and cholera prevail. 33. (b) Moisture. — In dry states of the air, changes are fully effected on the blood by respira- tion ; its wateiy portionsare more freely carried off from the exhaling surfaces ; its purity is increased, its congestion and excessive fulness prevented ; and consequently, the vital energies are promoted ; and the depressing causes of disease, as infectious animal etiluvia, and terrestrial exhalations, make much less impression on the system. Disorders occurring in this state of air assume chiefly a phlo- gistic or sthenic character, and affect most fre- quently the organs of respiration and the nervous system. A very 7noisl state of atmosphere causes opposite effects. It fails of producing to the full extent the requisite changes in the blood, and of carrying off the fluids exhaled from the surfaces, especially of the lungs ; thereby rendering the powers of life more languid, and the system con- sequently more open to the invasion of the ex- citmg causes. Less moisture, also, being exhaled, the elements of biliary secretion, and the watery portion of the blood become redundant in the vascular system. Hence an abundant secretion of bile, fevei's, affections of the liver, and deter- mination of fluids to the intestinal canal &c. are promoted. (See art. Climate.) 34. (c) Temperature and moisture conjoined.— That warm and humid states of air are individu- ally active as predisponents of disorder, has been shown ; but it is when they are conjoined, that they are especially injurious. A warm and humid atmosphere dissolves and accumulates tlie specific causes, such as animal and vegetable effluvia; assists their operation ; and favours a rapid trans- fer of electricity from the earth's surface, and the ciiange in the condition and the accumulation of it in the air resulting therefrom. It has been shown by the experiments of Prout, Fvfee, Allen, and Pepys, in an artificially increased temperature, and by those I made in an intertropical atmo- sphere, that heat remarkably diminishes the changes effected by respiration on the blood ; and these changes are further diminished by warmth asso- ciated with moisture, which, moreover, promotes the passage of positive electricity from the body. And as the researches of Rittlr show that the O o2 564 electricity of the positive pole beiglitens, whilst that of the negative depresses, the actions of life, the ultimate effect of humid atn)0spheric warmtli, as respects both the state of the circulating fluid and the locomotive electricity of the body, will be to lower the whole circle of vital manifestations, and to dispose to, or even to induce, diseases of a low character — to occasion adynamic, continued, and remittent fevers, or agues of a pernicious and congestive kind, or dysentery, cholera, chronic asthma, diarrhoea, and affections of the liver and spleen. A moist and warm air may, therefore, be stated to be doubly injurious, inasmuch as it is of itself an extremely active predisposing and ex- citing cause, and as it is tlie means of dissolving vegetable and animal miasms, — of marsh, infec- tious, and pestiferous emanations, — and the ve- hicle or medium in which they act injuriously on the frame. 35. (d) A moderately cold and a dry air in- creases the respiratory actions, and the energies of the system; proving what is commonly called a bracing atmosphere. Diseases usually assume an acute, sthenic, or phlogistic form ; and the respiratory organs are liable to suffer. — la cold and moist states of air, rheumatism, gout, nerv- ous affections, scrofula, and glandular diseases, intermittent and adynamic fevers, erysipelas, dropsies, anasarca, and chronic disorders and congestions, often prevail, especially in low, ill- ventilated, and marshy places. The positive electricity being rapidly carried off by induction from the body, a salutary stimulus, and one which experiments have siiown to be productive of in- creased activity of all the animal functions, may be supposed to be lost. But when the air is very dry, the transit of electricity from the surface of the earth and from the body is impeded ; this fluid accumulating until a moister state of air diminishes its quantity, and changes the re- lation subsisting between the electrical condition of the frame and that of the atmospheie. In very dry and warm states of air diseases less frequently prevail than when it is both warm and moist; and are more frequently characterised by increased vascular action. Inflammatory fevers, inflamma- tions of the brain, liver, and stomach, are then most prevalent. 36. (e) Sol-lunar injivence. — Considerable importance has been attached to the influence of the sun and moon in creating a morbid predis- position. Close observation of the relation sub- sisting between the prevalence of fever and dysen- tery, and the full and change of the moon, has apparently established some degree of connection between them in warm climates, particularly in the eastern hemisphere ; but the manner of ex- plaining this circumstance has been by no means satisfactory. Some impute it to a direct lunar influence; and adduce in support of their opinion the fact, that dead animal matter, when ex- posed to the moon's rays, more speedily suffers decomposition than when protected from them. Others, who favour sol-lu^ar influence, argue that it proceeds from the height of the tides, at full and change of the moon, occasioning the rivers on the coasts to inundate their banks, and to de- posit vegeto-animal matter, which is rapidly decomposed, when the water retires and leaves the low ground exposed to the sun's influence. But if the relation subsisting between the preva- I DISEASE — PnEDisrosiTioN to — ^Etiology. lence of disease, and the moon's changes we*"^ owing to this circumstance, it could hold only in respect of parts situated in the low alluvial coun- tries on the coast, and not in districts inland and much elevated above the level of the sea. This, however, is not the case ; for observation has shown the influence, whatever it may be, to be as power- ful in high and inland countries as in districts on the sea-shore. 37. (/') Light and sunshine. — That the power of the sun's directed and refracted rays, in the pro- duction and removal of disease, is by no means inconsiderable, is proved by their influence on the vegetable and animal kingdoms ; and by the effects which ensue in the economy when they are en- tirely excluded. These effects have been described in the articles on the Blood (§ 47. J, and De- bility (§ 6. c). The vital depression, attended by increased sensibility, mobility, and suscepti- bility to impressions, and the anaemia and gene- ral cachexy, which ultimately result from the protracted exclusion of light, are sufficient proofs of the beneficial inffuence of the sun's rays upon the frame. But additional and more direct evidence is furnished in the ' greater activity of the vital functions in spring ; and in the genial excitement of the frame of the aged and debili- tated, and indeed of both the minds and the bodies of all, by sunshine ; light, as ordained and regu- lated by nature, being a salutary stimulus, and necessary to the energetic and healthy performance of all the functions. The exciting and depressing effects of the excess and absence of light respect- ively prove its influence over all the organic and mental manifestations, and consequently its power in predisposing to, and even exciting, disease — the intense or continued action of light inordinately exciting the nervous and vascular systems, and producing disorders of this kind ; its abstraction weakening all the mental and bodily functions, and favouring the occurrence of diseases of de- bility. It is obvious from this, that light, especially sunshine — and even its abstraction — may be made subservient to the removal of disease, either in its individual capacity, or in association with a pure, dry, and temperate, or warm air, assisted by suitable exercise, and change of locality ; and that the partial abstraction of one or both of these requisites to the due or energetic per- formance of the functions, must be ultimately followed by disease, however remote the effect, or numerous the intermediate links in the chain of causation. 38, ii. The exciting Causes. — These have been called occasional by some writers, and direct by others, determining by several, and principal by a few writers. I shall divide this class of causes into — (a) those which are occasional in their operation ; and (b) those which are specific, or whose influence is followed by specific and de- terminate results. The causes already described, dispose the body to the action of those about to be noticed ; either by impeding, modifying, or interrupting some one or more of the vital func- tions, or by changing the constitution or organ- isation of the tissues or organs which are the instruments of the functions under the dominion of life. But the predisposing causes may, either by their activity, or by their acting in combination or in close succession, of themselves, produce dis- ease, without the aid of any of those which are DIS EASE — Exciting Causes of — ^Etiology. 665' usually termed exciting ; the predisposing being, in such cases, the true and only exciting, causes. Thus the indulgence of the appetites, fiitigue, the depressing passions, moist states of the air, &:c. — either alone, or associated with age, or constitu- tion, or habit of body, &c. — are often the only causes to which disease can be traced. On tlie other hand, the exciting causes frequently produce their effects without the previous operation, as far as we have the means of knowing, of tlie predis- posing causes ; and many of them merely predis- pose the system to the action of others following in close succession. 39. 1st. The occasional exciting causes act either • — (a) upon the vital functions, or the manifest- ations of life in the various organs and structures; or (b) upon the organisation of the part to which they are applied. 40. A. Of the causes which primarily injluence the functions. — These will be considered in rela- tion to the organs on which they immediately and chiefly act: — 1st, Those which are applied to, and disorder or obstruct the functions of the ex- ternal parts of the body ; 2d, Those which make their morbid impression upon the respiratory or- gans ; 3d, Those vvhich act simultaneously upon both the cutaneous and pulmonary surfaces ; 4th, Those which act primarily upon the digestive organs ; 5th, Those which affect the organs of sense; 6th, and lastly. Those which excite the feelings, passions, and moral emotions, and thereby modify the manifestations of mind, or the functions and organisation of the body. 41. (n) The causes luhich injuriouslij affect the external parts oj the frame, either disorder the perspiratory and eliminating functions of the cuta- neous surface, or modify the sensibility, or obstruct the actions, of external parts. — a. The perspir- atory offices of the skin are disordered by the diversified modes in which its temperature is af- fected, i/eat increases the organic actions of this surface — by exciting the nervous influence, ex- panding and relaxing the capillaries and exhalino- pores, and, indeed, all the integumentary tissues, by determining thither an augmented circulation, and thereby increasing the vital turgescence and excretory functions, — and cold diminishes or en- tirely arrests all these actions (as shown in the art. Cold); the excessive increase or diminution of the cutaneous functions in a part or in the whole of tlie surface, by disordering the balance between those performed throughout the frame, exciting diseases which assume varied forms and grades, according to the predisposition of different organs, the state of the system, and the causes which may co-operate with the change of temperature. Whilst insolation and unusual rvarmth in any form — as warm baths, vapour baths, currents of heated air, frictions, &c. — are powerful agents in the production or in the removal of disease, accordino- to the circumstances in which they are employed, considerable or prolonged cold is equally eflicient in both capacities. But it is more owing to the vicissitudes of temperature — to their rapid alter- nations— than to any excessive grade of eitiier, that the supervention of disorder is to be imputed. The sudden suppression of a copious perspiration ; the partial exposure, also, of certain parts, and the superfluous coverings of others ; or the action of currents of cold air upon one part, and of radiant heat on another, as when seated near large fires; and wearing unnecessary coverings on the head whilst the circulation is determined to it by posi- tion ; are also no mean agents in the production of rheumatic and nervous afl'ectioiis, and inflam- mations, by deranging both the perspiratory func- tions, and the sensibility of the parts thus oppo- sitely acted upon. The influence of too much clothing around the hips and thighs of females, and of too soft and warm beds and couches, in favouring uterine and vaginal discharges, and hemorrhoids ; and of too little clothing on the same parts, in obstructing the catamenia ; is ge- nerally admitted. The want of personal and domestic cleanliness, by allowing the accumulation of sordes upon the cutaneous surface, and the continued irritation of hurtful matters which may have come in contact with it, is a frequent cause of disorder of both its functions and its sensibility, and a common origin of many of the eruptions to which it is liable. 42. 0. Obstructions to the free actions of volun- tarii parts are often occasioned by the kind or fashion of the coverings which protect them ; and, not infrequently, injurious pressure of parts is superadded. Very thick and unyielding shoes pre- vent the developement of the muscles of the lower limbs, particularly the gastrocnemii, weaken the ankle joints, and occasion a shuffling gait. Strait, confined clothes, on young and growing persons, cinctures of any part, and too close or straitly braced breeches, sometimes produce diseases of the organs of generation, varicose state of the veins, varicocele, flexures of the spine ; and wast- ings, painful affections and organic changes of the testes. All impediments to free motion and the exercise of our organs are more or less in- jurious. 43. (b) The respiratory surfaces are afl^ected by several of the causes which act upon the cutane- ous surface. The operation of a warm and moist, or of a cold and humid, air on the lungs, and through them, upon the whole frame, has already been pointed out. (See § 32 — 35., and art. Cold.) The specific gravity, also, of the atmosphere has some influence in disease ; the diminution of it occasionally producing hsemorrhages from mu- cous surfaces. Exertions of -voice or speech, long- and loud speaking, running against the wind, and foreign substances floating in the air (as shown in the article on Arts and Employments) are com- mon causes of bronchial and pulmonary affections. The pollen or the odour of vegetables, grass, and flowers, the effluvium of new hay, &c., sometimes give rise to severe attacks of asthma, or that form of it which has recently been termed hay fever. The animal effluvia floating in the warm, moist and often stagnant air of assemblies, theatres, camps, ships, hospitals, and crowded gaols, inde- pendently of the admixture of any of the specific miasms hereafter to be noticed, change the condi- tion of the organic nervous influence, disorder the secreting functions, contaminate the circulating fluid, and, in this manner, produce efl^ects which are injurious in proportion to their concentration or intensity — generally low or adynamic fevers. Chemical fumes sometimes excite bronchitis ; and various simple or compound gases, the air of mines, the exhalations of privies and sewers, and even of new-painted rooms, are productive of syncope, asphyxy, or even apoplexy, convulsions and paralysis. In such cases, the diminution of O o 3 566 DISEASE — Exciting Causes 0 oxygen in the respired air, or the impression made by the foreign fumes or gases upon the nerves of the respiratory organs, or both conjoined, impede, obstruct, or arrest the changes produced upon the blood in the lungs, and ultimately terminate in death, preceded by one or more of the above af- fections. 44. (c) Several of the exciting causes act upon both the external and respiratori) surfaces ; espe- cially vicissitudes of season, of temperature, and of dryness of the atmosphere, suddenly passing from a cold to a warm air, prevailing winds (see Climate, § 11, 12.), the night or morning air ; and numerous circumstances connected with the habitation or locality — especially the exist- ence of the endemic sources of disease in its vicinity — ventilation, temperature, and dryness. The influence of north-east winds in reproducing attacks of ague and rheumatism ; of the night and morning air in causing disorders of the mucous surfaces and of low, damp, ill-ventilated, and crowded habitations, in giving rise to fevers ; is ■well known. 45. (d) On the digestive surfaces and organs. — a. Mode of operation. — The numerous and diver- sified substances which are either commonly, oc- casionally, or accidentally received into these organs, produce their effects in different ways. Those which are injurious from their specific tend- ency, or from excess, as numerous poisonous and medicinal substances, and those which disagree, from idiosyncrasy, mode of preparation, or injudi- cious admixture with others, as various articles of food, drink, and condiment ; act in some one of the following modes : — 1st, By irritating the vil- lous surface, or alteiing its organic actions from the standard of health. 2d, By exciting, depress- ing, or otherwise modifying the nervous power of these organs ; the morbid impression being propa- gated, in a greater or less degree, to other related organs. 3d, By both these piodes of action con- joined. 4th, By the absorption of these substances into the circulating fluids, and by their exciting, depressing, or changing the vital actions, through this channel ; the manifestations of life in the or- ganic nervous system, or in the blood itself, or in the cerebro-spinal system, or in secreting and ex- creting organs, being individually or conjointly afTected in one or other of these ways. And, 5th, both by their primary morbid impression on the digestive villous surface and nerves, and their consecutive influence, as stated in the 1st, 2d, and 3d heads; and by their absorption and action, in the manner now assigned.* (See, also, art. Poisons.) 46. /?. Food and drink. — The full discussion of these topics would comprise the subject of Dietetics ; upon which, however, the scope of this work will not allow me to enter further than very briefly in connection with the causation of disease. Tliey have already received some atten- tion in relation to climate and season (see Cli- mate, § 26.); and to the habits of individuals as to their use ($ 19.). It must be obvious that * Tho above classification is in arcorrlanco witli tliat publishod by me in tlie l.umhm Mcdiriil l!rpiisilon/ for May, 1H22, p. 380. ; and was tljc lirst, lliat was hascil'upon tlieab«or|)tionot'sul)stanccs into (lie circiilatKjn.aiid upon ttieir relative action on tlic organic niTvous and ccrcbro- niiinal ByBteiiu. F — Dietetics — Etiology. any article of diet will occasionally be found difficult of digestion, or even injurious, in certain latent and open states of disorder. When ob- structions of any of the viscera, or accumulations of secretions in the biliary organs or in the piima via, already exist, owing to weak action or torpor of any of these parts, very slight aberrations from an accustomed diet, or substances not usually hurtful, may occasion very serious disease. It is also evident that the privation of food and drink ; excesses in either, or in both; and, in this cli- mate, loo large a proportion, or the exclusive use, of either animal or vegetable diet ; will be productive of correlative ill effects. The exces- sive use of animal food, particularly pork, gives rise to plethora, scrofula, and gout ; and the want of vegetables, herbs, and fruits, in sufficient pro- portion to the salted provisions consumed, or an innutritions diet, is productive of scurvy, purpura hemorrhagica, of an intermediate disorder, which may he called land scurvy, and chronic diarrhoea and dysentery. Both flesh and fish are some- times productive of disorder, owing to their being diseased at the time of being killed, to their be- coming tainted subsequently, and to unwhole- some ways of preserving them. A poisonous pro- duct is occasionally evolved in smoked and dried meats; and shell-fish, chiefly from being imper- fectly boiled, and long kept by the retailers, is often extremely injurious. The plan very gene- rally adopted by the fishmongers of London, of preserving fish — especially turbot, salmon, and, indeed, all tiie fish that is not sold before even- ing — by means of ice ; a large proportion being frozen, thawed, and frozen and thawed again, as alternately exposed in the day on their stalls, and lodged in the evening and night in the ice- pits, until the cohesion of the fibres is lost, and the flavour dissipated ; is most prejudicial to iiealth, particularly during summer and autumn; and is one of the most frequent causes, in Lon- don, of disorders of the stomach and bowels, although overlooked by writers on this class of diseases. Nor does the evil end here ; for all the salmon that becomes tainted from this mode of keeping, is either pickled or smoke-dried, and sold for that prepared in these modes from the fresh state. Independently, however, of these circumstances, all kinds of fish — some more frequently than others — may occasionally dis- agree, particularly with certain idiosyncrasies, and with weak digestive organs ; as lobsters, mussels, &c. Some kinds are even poisonous, especially in warm climates; and others produce disorder fiom being out of season, as salmon, trout, &c. The injurious action of fish is ex- erted chiefly upon the stomacli and bowels; ge- nerally in the form of cholera, attended by extreme vital depression ; and sometimes by an eruption on the skin. That the poisonous ele- ments are partially absorbed into, and act partly through, the circulation, may be inferred from tlieir efl'ects, and from their peculiar odour being afterwards detected in the cutaneous secretions. The means of preventing and counteracting the ill efl'ects of fish are stated in the article Poisons. Vcgetalilcs, even, will also disorder the digestive organs if (hey be allowed to run to seed, or grow too far, or if kept too long after they liave been removed from the soil. '17. y. Cookery and condinioils. — Animal sub- DISEASE — Exciting Causes of — Dietetics stances become indigestible by being either too much or too little cooked ; and vegeUible sub- stances, chietly, by being too little. Fried and baked meats are less digestible than roasted and broiled. Stewed dishes, meats prepared a second time, and very highly seasoned articles, are all prejudicial. Fish often disagrees with the sto- mach, from the manner of cooking, and the sauces taken with it ; and, of these, butter is one of the worst ingredients. Vinegar, lemon-juice, and salt are the most wholesome condiments ; and, if the fish be rich and fat, Cayenne or black spice may be added, — these being amongst the best antidotes to any ill effects it may pro- duce. The livers of fish are generally productive of disorders in weak digestive organs ; for, during boiling, all the oil — which is extremely whole- some, and even medicinal, and which mi^ht advantageously enter into the composition of the sauce instead of butter — is extracted, and, swimming on the surface of the water in which the fish is boiled, is thrown away with it ; the part remaining being that only which is generally, but improperly, used. Coiic/ime«ts,excepting by those who have been long habituated to them, are hurtful, unless taken in very small, or at least moderate, quantity. Salt, vinegar, and lemon- juice are the most wholesome under all cir- cumstances. The fact, that salt is necessary to health at all periods of existence, is not easily reconciled with the equally well-established fact, that the protracted use of salted provisions is a principal cause of scurvy, scorbutic dysentery, external sores, ulcers, as well as an evident pre- disposing cause of fevers, inflammations, &c. But it may be presumed that the combination of salt with the animal fibre decomposes it or modifies its effects upon the living system. Besides, sailed meat, particularly when it has been long pre- served, becomes less nutritious, and more difficult of digestion ; the ill effects being equally attri- butable to the deficiency of vegetables, frequently conjoined with bad water, and the depressing passions. 48. ?•. Baked pastes, and pies, tarts, S^c, and ■the boiled dough of puddings, are difficult of digestion, especially the former ; and should never be taken by dyspeptics. Fruit, when in season, is much more wholesome. But if it be used either previously to being fully ripe, or when it has become over-ripe or stale, and particularly if ■it be uncooked, disorders of the stomach and bowels are frequently produced by it. New cheese is very injurious when partaken of largely ; and nuts, cucumbers, and melons are always indi- gestible, however ripe they may be. A variety of fruits, immediately after a full meal, is also pro- ductive of disorder; the most wholesome being ripe oranges, grapes, strawberries, &c. All pre- served and stimulating articles of dessert merely load the stomach, occasion thirst, and lead to the ingestion of a greater quantity of fluid, and of ■wine, than is consistent with easy digestion, and with the regular performance of the functions. 49. E. Dritik and beverages are also common sources of disease, either from being of improper kind, or used in excessive quantity. Tiie most wholesome wines are port and sherry, after hav- ing been six or eight years in bottle, and the finest and highest flavoured French and Rhenish ■/T^TIOLOGY. 567 wines. The constant use, however, of even the best port and sherry occasions vascular plethora, and its consequent ills, unless very active exer- cise be taken. Delicate persons should dilute them with an equal, or one half the quantity of water. Champagne often excites gout : I have observed two or three glasses of it bring on an attack the following day. Malt liquors, although both tonic and nourishing, owing to the hop and extract of malt contained in them, occasion dis- ease wiien constantly used, from these very cir- cumstances ; a plethoric state of the system, obesity, and various contingent diseases, being the result. The most wholesome of this kind of beverage is brisk small beer. Cider and perry are sometimes productive of colicky affections, gastrodynia, indigestion, and diarrhoea, especially if they be taken while the body is perspiring, or in very hot weather. Spruce beer is much more wholesome. Spirituous liquors, particularly those in common use, are most injurious to the frame; and, in the lower classes, are the most frequent causes of, first, functional, and afterwards organic, diseasesof the stomach, liver, bowels, and brain, as well as of some other viscera, and of insanity. Cojf'ee and tea, atthough, upon the whole, whole- some beverages, may be, in some constitutions and states of the system, productive of disorder. A strong infusion of cojf'ee, taken soon after the principal meal, promotes digestion, and counter- acts whatever ill effects the cold and poor wines used on the Continent might otherwise produce. But it is sometimes injurious, from its stimulant properties, in cases of cerebral irritation, or ex- citement; and, when taken late in the evening, prevents sleep. The infusions of black or green tea are gently tonic and narcotic ; the latter act- ing more energetically upon the cerebro-spinal system than the former. Green tea usually ex- cites the nervous power ; and, like coffee, in- creases the activity of the cerebral functions. But, when morbid, vascular, or nervous excite- ment exists, it generally proves an excellent tonic and sedative ; procuring sleep, and diminishing both nervous and vascular disorder. In cases of asthenic vascular action, attended by coma or lethargy, I have found it A most valuable re- storative of both vital and cerebral power. In addition to the above, the use of hard or un- wholesome water, and either a high or a very low temperature of the ingesta, are often productive of disease. 50. ^. The effects of accidental or designed in- gestion if poisonous substances, as well as the means of counteracting and removing them, are considered at another place; and, althouo-h in- judicious ^ises of remedial means are but too fre- quently causes of disease, and of its aggravation, especially the inappropriate use of mercurial pre- parations, of emetics and irritating purgatives, of vascular depletions ; of stimulating and heatmo- substances, exhibited with the view of restormc^ nervous power, or of promoting expectoration, instead of allaying increased vascular action, and of secret remedies of every description ; the nature of the subject precludes further allusion to it at this place. The influence of morbid secretions poured into the digestive tube, and the effects of arresting accustomed or salutary eva- cuations, as increased discharges from the ute- O 0 4 568 DISEASE — Exciting Causes of — Etiology, rine organs, haimorrhoids, &c., or vicarious secretions, without having opened aa artificial outlet, or produced artificial irritation and dis- charge, in extending, perpetuating, and aggra- vating disease, rather than originating it — for morbid states of secretion imply existing disorder — are sufficiently obvious. 51. (e) The causes which act on the organs of sense consist chiefly of the abstraction of the natural stimuli or impressions, and the appli- cation of tliem in unusually intense forms; the mental phenomena excited through the medium of the senses not falling under this head. — a. Sight may be weakened by prolonged dark- ness, and consequent inaction of the organ ; but it is much more commonly injured by the un- usual impression of liglit, which may so intensely excite and exhaust its sensibility as to destroy its functions. The rays of the sun, and lightning, have produced this effect almost instantaneously ; and the light reflected from snow in northern countries, and from the sands of the arid districts of intertropical climates, has frequently occasioned it in a slower but not less effectual manner. Per- sons employed in glass-works, forges, founderies, &c., who frequently subject their eyes to an in- tense light and radiant heat ; and those who are occupied on small, very near, or minute objects ; are often affected by amaurosis, cataract, and other chronic disorders of the organ. When the sensibility of the eyes is increased by protracted darkness, the admission of even a moderate light often becomes painful and injurious, if it take place suddenly. Of the various colours reflected by tlie rays of light, white and red are most fatiguing to the sight. — B, Hearing is injured by very loud noises, or detonations, near to the organ : and persons of weak or nervous constitu- tions may even lose this sense by such causes ; or experience convulsive seizures, syncope, vio- lent palpitations, or disorder of the digestive and circulating organs. Loud noises are extremely injurious in all cases of cerebral and vascular excitement; and in cases of external injury, as well as of internal inflammation. ]\I. Percv states, that he observed the wounded often very sensibly affected by the report of cannon during sieges and battles. — y. The sense of touch, and the sensibiiitii of external parts, are acted on by many of the causes already noticed ; but often in an imperceptible manner. Numerous external irritants ; extremes of temperature, either of the air, or artificially excited, as extensive vesications and burns ; violent or protracted excitement of the senses of sight and hearing ; or irritations or injuries of nerves; frequently affect sympatheti- cally the wliole frame ; and even occasion con- vulsions, spasms, inflammation of the brain and spinal chord, or of their membranes; and, when extremely intense in relation to the vital resist- ance of the sufferer, great depression, and even fatal sinking, of the ])Owers of life. — J". The sense of smell may be impaired by over-excite- ment ; or by causes acting in this, or in any other way. It is also partly through this sense that various agents invade the system, espe- cially those of a depressing kind, as infectious effluvia. (See art. Infection.) Odours some- times, also, produce syncope, nausea, vomiting, and nervous affections through this medium.- — -s. The sense of taste is the least frequently the channel through which exciting causes act : the impression, however, made upon the palate by certain articles are sometimes productive of severe disorder of the digestive organs ; and, in the case of the more active narcotics, &c., of dangerous disease of the nervous system. 52. In the foregoing review, those causes which act eiternaily upon, or through the medium of, the organs of sense have been noticed. But there are numerous changes, which are intrinsic, or take place in the organic, nervous, and circulating systems, as well as in the brain and secreting viscera, and which affect these organs in a very remarkable manner. These, however, are rather secondary or pathological causes — or the effects of agents acting primarily upon those or other parts of the frame, which effects become contin- gent or necessary causes of disorders of the or- gans of sense — from altering their condition, or the state of parts necessary to the perfect per- formance of their functions. Thus the senses may be disordered, or altogether abolished by disease of the brain, or of their nerves, or by af- fections of the digestive and assimilating viscera. This influence of disease of one viscus or system, upon those anatomically or physiologically re- lated to it, also subsists more or less evidently throughout the frame ; the primary affection giving rise to a variety of sympathetic and se- condary disorders, according to the progress it has made, to the circumstances that have influ- enced it in its course, and the predisposition of the individual (§ 21.). 53. (f) On the sentiments and passions.— The circulation of the brain, the action of the heart, and the functions of the digestive and generative organs, are frequently disturbed by causes affect- ing the manifestations of mind. — a. Excessive mental employment ; long protracted attention, especially to one subject ; over-exertion of indivi- dual powers, without the requisite repose, and the relaxation resulting from an agreeable diver- sity of pursuit ; the distraction also occasioned by a number of pressing or abstract topics ; can seldom be very long persisted in, without ex- hausting the mental energies, exciting or other- wise disturbing the circulation through the brain, and ultimately inducing either acute or chronic cerebral disease, as phrenitis, delirium, insanity, apoplexy, paralysis, epilepsy, &c. ; especially if other circumstances concur to excite or over- load the vascular system, and determine the cir- culation to the head, or if the requisite nightly repose be abi-idged or interrupted. — 0. Certain trains of feelings, and particular desires or pas- sions, as religious sentiments, affection, love, hatred, revenge, avarice, pride, vanity, &c., may all be cari-ied to that pitch, by being con- stantly and exclusively entertained, as insensibly to pass into monomania, or other forms of insa- nity ; or to occasion ecstasy, catalepsy, convul- sions, or some one of the diseases mentioned above (a). — y- Various circumstances occa- sioning solicitude, anxiety, distress of mind, sadness, fear, shame, penitence, disappointments and losses of all kinds, the indulgence of grief, and anxious or constant longings alter objects of desire or of afi"ection, may not only disorder the mental manifestations in a partial or general manner, but also disturb the functions of the heart, as wcl) as those of digestion and assinii- DISEASE — Specific Causes of — jEtiologv. 569 lation. All the depressing emotions of mind have an especial effect upon the circulation, upon the nutrition of the frame, and indeed upon all the functions dependent upon the organic nervous system ; and favour chronic and asthenic diseases of the heart, particularly passive dilatation and enlargement of its cavities, indigestion, and con- stipation; also chlorosis, pulmonary consump- tion, hysteria, and tubercles, early in life ; and hypochondriasis, melancholia, chronic diseases of the liver, spleen, and pancreas, and cancerous or other malignant diseases, at mature or advanced ages. — J. Surprise, fright, terror, anger, and indignation, are not infrequently productive of apoplexy, paralysis, epilepsy, convulsions, syn- cope, violent palpitations, painful or acute af- fections of the lieart, disorders of the stomach, liver, aud bowels, hysteria, abortions, derange- ment of the uterine functions, and of the mani- festations of mind. — £. Great mental excite- ment, unlooked-for success, the sudden accession of fortune, extreme joy, and all the pleasurable emotions carried to excess, are not infrequent causes of insanity, of phrenitis, epileptic convul- sions, hysteria, and catalepsy. — ^. An impro- per conduct, and an insufKcient control, not only of the sentiments and emotions, but also of the imagination, are amongst the most common causes of disorder in the manifestations of mind, as well as of the other maladies enumerated above (a, (3). — >i. Inordinate indulgence of the sexual appetite occasions epilepsy, loss of me- mory, and mental and corporeal debility, impo- tency, diseases of the testes, prostate gland, and urinary bladder, and affections of the heart and lungs in males ; and in females, inflammation of the ovaria and uterus, Huor albus, hysteria, chlorosis, melancholy, irregular convulsions, organic or scirrhous changes in the uterus, dis- eases of the ovaria, and sterility, &c. (See art. Age, §24.) — Sr. Persons who have been habi- tuated to excessive sexual indulgence, and become altogether continent, are liable to noc- turnal emissions, to impotency, convulsive and other nervous diseases, and to disordered mental manifestations. — <. Numerous acts of volition injudiciously attempted or directed may be pro- ductive of the most dangerous injuries and disease ; as violent muscular efforts, of sprains, aneurisms, ha;morrhages, inflammation and caries of the vertebrae, or inflammation of the intervertebral substances. Positions with the head low, or on the back, and especially such as are uneasy or unnatural, too long retained, or too frequently assumed, give rise to cerebral disorder and curv- atures of the spine ; and encumbered, obstructed, or too rapid and protracted movements, produce injurious acceleration of the circulation, exljaus- tion, with other ill effects. 54. B. The cliemical and mechanical causes of disease require little notice here ; the former of these having received attention in the articles on Asphyxy, and Poisons; and the latter on that of AnTS AND Employments, as Causes of Disease. — (a) Chemical agentsareinixinons — - 1st, by their influence on the functions of the part with which they come in contact, their effects varying with their individual properties ; 2d, by the change they produce in the structure itself, either in combining wltli it, or otherwise changing its constitution, so as to render it incapable of its healthy offices ; and, 3d, by totally destroying the nervous and vital influence, and intimate organis- ation of the part. — (ft) Of mechanical causes and positions impeding, upon physical principles, the flux or reflux of the circulation and secreted fluids, continued pressure of various grades, and unna- tural ligatures of parts, are the most common, and act slowly, and often insensibly and unremit- tingly. Shocks or concussions of a part or of the whole of the body, or other kinds of external violence, not only occasion the division, fracture, dislocation, bruise, and comminution of external parts, but also the rupture, laceration, hasmor- rhage, displacement, vital depression, or extinction of function of internal viscera, as of the urinary bladder, liver, spleen, stomach, and bowels, brain, spinal chord, &c. 55. iii. The Specific Causes of Disease. — Of the causes which may be thus termed, emanations from the soil are, perhaps, the most common. — A, The miasmata arising fiom stagnant water, par- tially covering the soil, or covered by vegetating substances ; from vegetable matter in a state of decomposition ; from moist absorbent soils exposed to the sun's rays; from the muddy and foul bot- toms of lakes, marshes, and lagoons, or the marshy banks of rivers and canals ; and from low grounds which have been partially inundated by the ocean or by rivers ; are productive of agues, enlarge- ments of the spleen, of the liver, and even of all the glands, of rheumatism, catarrh, &c., in cold or temperate climates ; and in addition to these, of remittents, bilious and gastric fevers, dysentery, cholera, diarrhoea, and hepatitis, in warm climates and seasons, according to the predisposition of the patient, and the circumstances which have aided the action of the efficient cause on the system. 56. B. When dead animal matters or exuviae mix with vegetable substances, and putrefy along with them, in a warm and moist air, the efflu- vium assumes a more noxious form, especially if the air stagnates in the vicinity of its source ; and it becomes more certainly productive of dis- ease than that which proceeds from the decom- position of vegetable matter only ; the effects produced by it being often of a more adynamic or malignant character. In warm countries, the localities enumerated above abound with dead animal bodies, and the exuvia3 of immense swarms of insects; and hence may be inferred the reason wherefore terrestrial emanations in these climates give rise to more severe forms of intermittent and remittent fevers, depress more remarkably the vital powers, derange more the vascular system, and more sensibly affect the blood and the secre- tions, than the miasmata exhaled from similar places in northern latitudes. The water of low, inoist, and marshy places is also productive of various maladies, particularly of dysentery, chro- nic diarrhoea, diseases of the spleen, Guinea- worm, 6iC. These causes and effects, with what is at present known of their operation, are more fully discussed in the arts. Endemic Influence, and Fevers. 57. C. Emanations from animal matter only, the air being in other respects uncontaminated, or frequently renewed, are seldom productive of any serious maladies. But when they burst forth suddenly, in a close and moist air, the effects are sometimes most pernicious. It has been recorded, that fevers of a very malignant kind have attacked 570 DISEASE — Specific Causes of — ^Etiology. persons who have opened a grave and exposed the body whilst undergoing decomposition, the efflu- vium having instantly produced a sensible influ- ence upon the frame. The effects of air accumu- lated in sewers, privies, &c., are shown in the article on Asphyxy. 58. I'he particular elastic fluids which are evolved from the foregoing sources have not been satisfactorily demonstrated by analysis. They seem, however, to consist of an admixture of va- rious gases, in very variable proportions, parti- cularly sulphuretted hydrogen gas, and sulphuro- carburetted hydrogen, with azote, and aqueous vapour, holding the more subtile particles of de- composed animal and vegetable matters in solution ; which particles most probably make the most in- jurious impressions on the frame, and are the actual causes of the consequent disease. 59. -D. The various exhalations and secretions formed in the course of disease are most common and important causes. These consist either en- tirely of insensible emanations from the bodies of persons affected by the exanthematous and speci- fic fevers, &c. (infectious) ; or altogether of a consistent and palpable fluid formed on the mor- bid surface of the diseased body or part, as the itch, lues venerea, &c. {contagious). Many of the maladies which spring from specific causes, propagate themselves, both by impalpable or in- visible emanations from the body floating in the surrounding air, and by the contact of a consist- ent fluid or virus formed in the diseased part, with a part of an unaffected body rendered ca- pable of being affected by it. Such is the case with small-pox and plague (both infectious and contagious). Rlaladies which are produced by the contact of a consistent fluid secreted by a diseased part, may be propagated artificially, or by inoculation, although not in every instance where it is attempted. Those, however, which do not form upon some part of the chief seat of disease a consistent secretion, capable of being artificially inserted in a healthy body, may never- theless be conveyed from one person to another, by bringing substances capable of absorbing and retaining for a time the emanations given out from the diseased body, as frequently demon- strated by typhus and scarlet fevers, &c. ; and all those whicli are propagated by contact, or by a palpable fluid, also, may be disseminated in a similar way. The substances thus imbibing and conveying the invisible or infectious emana- tions, as well as the palpable and contagious virus or consistent secretions, have been called fomites — if a single substance has been the vehicle, fames. Of all the various materials which may thus become the medium of transmitting infectious diseases, animal productions, particularly woollen and hairy substances — manufactured or unmanu- factured— iurs and feathers, bedding and body- clothes, have the greatest disposition to imbibe the morbid effluvium, and to retain it the longest. It seems as if animal emanations were attracted and retained most strongly by substances belong- ing to the same kingdom. Js'ext to these, cotton, flax, linen, and otiier substances of a soft and porous texture, are most likely to convey morbid effluvia. In respect of the diseases which are really infectious or contjjgious, or which proceed merely from terrestrial emanations, great differ- ence of opinion exists, and has long existed. IMany fallacies connected with the use of the terms in dispute, much misapprehension and ig- norance, great prejudice, and unbecoming acri- mony, have characterised the controversies which have arisen on this subject. The topics, how- ever, connected with it, both essentially and col- laterally, are fully discussed in the articles on Fevers — Caxises cf ; and Infection ; — and in those on the diseases, respecting the nature of which difterence of opinion has existed. 60. E, Mode of action of specific causes. — On this subject, a very general remark merely may be hazarded at this place. Those specific causes which are suspended in the atmosphere or dissolved in the moisture it contains, and in- haled into the respiratory passages, seem to make their first impression on the nerves supplying those parts ; the organic nervous system being chiefly affected. That this is the case in respect of maish miasmata, and other terrestrial emana- tions, is indicated by the periodicity — the intervals, the recurrences or paroxysms, the exacerbations, and the terminations, of the various diseases re- ferrible to these sources. If the circulating fluid were eai'ly and chiefly affected by them, as some believe, morbid action would take place more rapidly, and assume a more malignant and conti- nued form ; for, as soon as the blood becomes af- fected, complete remissions are never detected ; whereas all affections of the nervous system, es- pecially those of a functional kind, are charac- terised by remissions and exacerbations ; or by intermissions and regular paroxysms. In ad- vanced stages, even, of those maladies, particu- larly after the various secreting and depurative functions have been disordered, the circulating fluid probably becomes changed, although not in a very remarkable manner ; the chief morbid condition, however, still existing in the organic nervous system. Wlien the miasms floating in the air consist principally or altogether of animal emanations — proceeding either from animal matter in astate of decomposition, orfrom persons affected by adynamic or specific forms of disease — not only may the first impression be made upon the oi'ganic nervous system, but the blood itself may also be early contaminated, although not at first in a sensible manner ; for it is not unreasonable to infer, that the fluid emanations from the bodies of the diseased, and dissolved or floating in the respired air, may pass into the blood along with those constituents of the air which partially enter it, and in this way induce a similar disease of the whole frame, owing to the universal diffusion of this fluid, and the very intimate connection sub- sisting between it and the organic nervous sys- tem, even before the changes effected in it have become manifest to our imperfect senses. 61.iv.TllE DETER HI IMNG OR CONSECUTIVE C A USES OF Diseases require little observation, further than that the practitioner should not overlook the cir- cumstance, that the exciting causes, whether common or specific, will frequently fail of being followed by any marked effect, when the system is in due healtii at the time of exposui'e to them, and is not subjected for some time afterwards to various additional influences or agents, particu- larly such as pi'oduce a depressing or debilitating impression. Thus, a person who has been exposed to emanations from fiie subjects of typhus fever, or from marshy grounds, &c., may experience no ail- DISEASE — General Doctrine of — Pathogeny. 571 ment, until a change of weather — from dry to moist, &c. — or depressing menial impressions, or cold and fatigue, or venereal excesses, or in short, any debilitating influence, occur to aid its operation and deteimine its action ; and if no such consecutive causes aid the principle or specific cause, iu a few days from the exposure to it, dis- ease will often not appear. I have frequently seen this exemplified in a very striking manner : one instance on a large scale will be sufficient. Between twenty and tliirty persons were exposed all night, without cover, to the air of one of the most fatal sources of miasmata furnished by a warm climate, during the unhealthy season, but were soon afterwards removed to sea — far from any further exposure to this specific cause. They continued well for six or seven days, when about half their number experienced great fatigue. All these were nearly simultaneously — on the fol- lowing day — seized with remittent fever ; whilst those who had not been subjected to this conse- cutive cause, with the exception of two, who were not attacked till several days subsequently, en- tirely escaped, although all had been equally exposed to the specific cause of that form of fever. Further illustrations from my experience in dif- ferent climates, and of various diseases might be adduced ; but the simple statement of the above fact is suflficient. The practical importance of it, however, should not be overlooked ; for it shows — what I have frequently believed has been suc- cessfully practised — namely, that a person who has been subjected to the impression of a specific or any other exciting cause, may escape its effects, if he immediately fortify the system against it, and avoid exposure, for some time subsequently, ^to all other injurious agents, especially those which lower the vital energies of the frame. Per- sons even who expeiience the sensations more immediately caused by exciting agents of a spe- cific kind, as infectious emanations, will oftfen escape by observing this precaution, and having recourse to a restorative regimen, with the usual means of promoting all the secreting and excreting functions of the frame, as shown in the art. Fever — Prophi^lactic Means. 62. It is unnecessary to enumerate the causes which most commonly come in aid of the exciting agents of disease. They comprise nearly all those already adduced as predisposing the system to, as well as occasionally exciting, morbid action ; particularly such as depress vital power, by their specific properties and immediate impression ; the abstraction of requisite or accustomed stimuli, as of warmth, food, ike. ; whatever impedes the functions of respiration, digestion, assimilation, and excretion ; all weakening discharges ; de- pressing aflfections of mind, particularly fear of being affected by the cause to which the person was exposed ; and all circumstances in any way deranging the accustomed tenor of the mind, and habits ol life. 63. III. General Doctrine of Disease, or Pathogeny (from Trafioj, disease, and yindoj, I gender, or produce). — An examination of the systems of medicine proposed since the revival of learning in Europe, or even of those advanced in modern times, would occupy more of my limits than I could devote to the subject. I shall, therefore, proceed at once to the developement of those general views of disease, which observ. ation and reflection have suggested to me, and convinced me to be of importance, not only in estimating aright the exact state of the more com- mon specific maladies, but in forming safe opinions respecting those more anomalous or complicated affections, which frequently present themselves to the practitioner. 64. I have already contended ( § 7.), that, with few exceptions, which have been particular- ised, the causes of disease Jirst modify the mani- festations of life in some one or more of the sys- tems and organs with which it is allied ; or, in other words, first disorder the functions with which they have a direct relation ; and that, after a period of longer or shorter duration, the disorder of function becomes a cause of further disorder in related or associated organs, and ultimately, if circumstances obtain hereafter to be noticed, of change of structure either in the primary seat of disorder, or in that consecutively affected. From this, and what has been already stated, it will ap- pear that a great proportion — nay, all — of those disorders of internal parts which have been viewed as intriiisic predisposing and exciting causes of disease, are, in truth, pathological conditions, or existing states of disease, induced by _^some one or more of the causes specified above, and ready to produce further disease, or to lead on to a salutary change, according as the ex- isting state of vital power or resistance, and the influences or agents acting on it, may determine the procession of phenomena, or incline the ba- lance. These primary or early changes, or morbid conditions, may very aptly be termed secondary or pathological causes, when they give rise to ulterior change either of function or strifl'ture ; but they are so diversified, that but little notice can be taken of them here, beyond what is necessary to the con- sideration of general principles ; their different forms being more intimately viewed in the articles on specific diseases. It may, however, be remarked that they often exist in latent, or almost imper- ceptible, states, and predispose the frame to the invasion of causes to which it otherwise might have been exposed with impunity. 65. 'I'he great fault of all systems of patiiology, down even to the most recent has been their con- fined or narrow principles, and consequently their inadequacy to the explanation of all the states of morbid action constantly occurring. Buovvn and his followers admitted but two modifications of the vital manifestations from the normal state, viz. depression and excitement, whilst he substi- tuted an inappropriate and single term as a sign for those manifestations, which are as obviously and frequently changed in kind as in degree. Dr. Parry referred the ciiief states of disease to the vascular system and to changes in its states of action, without sufficient reference to the nervous system, as controlling and even causing these changes, especially to the organic nervous system, with which the vascular is so intimately con- nected ; whilst his contemporaries, who con- sidered that disease originates in the nervous, and affects the vascular, system consecutively, viewed the cerebro-spinal axis, and its various prolongations in the form of nerves of sens- ation and volition, as the parts primarily im- pressed. Considering, however, as stated in the article on Debility ( § 13.), that the intimate association of the organic nervous system with 572 DISEASE — General Doctrine of — Pathogeny. the vascular system throughout the frame, and particularly in vital, secreting and assimilating viscera, fulfils important objects, — that these systems are the chief factors of life in the various structures and organs, which, however, modify its manifestations, giving rise thereby to specific manifestations of this endowment, according to the nature of their superadded organisation, so that the liver secretes bile and not urine, the pancreas its peculiar secretion and no other, the kidneys, urine, &c. — I believe that the causes of disease commonly act directly upon one or both of these systems, most frequently on the former; and generally on their numerous ramifications in one or more of those organs or surfaces, witii which the exciting and other causes are more immediately related, and with which they are brought in connection from their nature and pro- perties. Thus, those causes which are apphed to the respiratory surfaces primarily affect the organic nerves distributed to them, and the blood- vessels of the lungs, and in some cases the blood itself; and those which are received into the di- gestive organs, make their impression on the nerves, supplying them, thereby modifying their vita! manifestations, as well as the functions of re- lated or associated viscera, according to the pro- perties of the individual agents. Having pointed out the intimate relation of the exciting and other causes to the organs on which they chiefly act, and having here and at preceding places noticed the particular system on which they seem to exert their primary impression, it becomes requisite next to enquire into the nature of that impression, or early disorder, and afterwards to consider the changes which consecutively accrue, and the means which nature employs to arrest their progress or to give them a salutary tendency. 66. i. Of the principal States of Morbid AcTioM. — In considering the earliest aberrations from the healthy state following the impression of morbid agents without especial reference to the system or organs on which they directly act, we are particularly struck with their very diversified nature ; and, upon an intimate view of the numerous shades of difference, often evanescent or inappreciable, between effects ap- parently similar, we necessarily arrive at the conclusion, that, however multiplied tlie various grades of action or vital manifestation may be, some other differences than such as are purely dynamic exist ; and that the changes may also be of an anomalims or Cachectic kind, — that the vital manifestations in the various organs may not merely present simple changes of degree, but also COMPLICATED ALTERATIONS OF KIND, that vital action may not only be depressed and excited, but also changed in other respects, or vitiated, as well as at the sa;ne time either de- pressed or excited. Sufficient proof of the above positions will immediately suggest itself to the practitioner, when he considers tiie dif- ferent states of action that may be even artifi- ciiilly produced by the ingestion of different stimuli, the grades of whose action may be very nearly tiie same; or when he views the very nu- m(!rous modifications in degree, form, and kind, which ciiiier vital depression or excitement as- sumes, in affections even of the same system or organ, lie will, moreover, recollect that nu- merous maladies have come before him, in which the least distinctive characters were those result- ing merely from grades of action ; that the most prominent features, whether pathognomonic or diagnostic, had no reference to degree, but to form or kind ; and that many of these were of the utmost importance in the recognition of the actual pathological condition, and as bases for therapeutical indications, however difficult it might be to describe or explain them, or to convey such an idea of them as he had himself formed, and successfully applied to practice. In- deed, every one must have remarked, that nume- rous phenomena, either cognisable to the senses of the observer, or merely connected with the sensations of the patient, indicate rather a change in the condition of life, a vitiation of its properties and manifestations, than any grade either of its depression or excitement. If we take the common symptom of pain, as remarked by Dr. Pring, we have no evidence that it is more inti- mately allied to increased, than to diminished, vital action. In imputing it to altered sensibility, we in fact imply that the alteration is not altogether one of grade merely; indeed, a careful examin- ation of related phenomena will show that the most intense states of pain are more commonly connected with lowered, than with exalted action. As respects, therefore, numerous changes in particular functions and organs, as well as in the whole body and its general manifestations, it may be inferred, that the condition or properties of life, and consequently of vital action, may be altered very variously, otherwise than in de- gree ; and that, as intermediate grades of action or vital manifestation are innumerable, and admit only of an arbitrary estimation, so are the modifications or alterations of it, in kind or condition, equally diversified — merely the more prominent features admitting of recognition by our imperfect powers of sense and intellection. 67. 1st. Of THE Dynamic States of Vital Manifestation. — Grades of action must neces- sarily be infinite, between the lowest consistent with life, and the highest to which excitement can be carried without passing instantly into complete exhaustion. They have been very generally- divided into two classes or divisions, namely, those helotc, and those above, the medium grade of health ; the former having the generic ap- pellations of debility, asthenia, adynamia, and frequently of exhaustion when occurring conse- cutively, applied to them ; the latter that of excitement, hypersthenia, sthenic or increased action and often of reaction when secondary or indirect. 68. A. Debility, in its various conditions, — primary, secondary, and complicated; as well as its special manifestations and effects in the dif- ferent systems, tissues, and organs ; was fully discussed in an article devoted to the subject; where also its pathological relations — its associ- ations, consequences and terminations, with its practical bearings, were considered at length. I therefore, proceed to give a succinct account of that state of vital action or manifestation which seems to mount above the standard of health ; and which presents various modifications, and produces diversified effects, not only according to its cause, and the system or viscus primarily affected, but also as it may appear primarily or consecutively. DISEASE — General Doctrine of — Pathogeny^ 573 69. JB. Of excitement and reaction. — No circumstance has tended more to prevent tlie ac- quisition of sound principles in pathology than the terms introduced by Brown and iiis fol- lowers, and the meaning attached to them. In- deed, it was a matter of no small difficulty to arrive at a precise idea of what meaning they did convey ; for a single word was in itself an hypotliesis ; and " eicitahiliti/" — accumulated, exhausted, &.c. — " sensihililti," "susceptibility" &c. were made to perform more than actually falls to their lot. As, however, these terms are frequently employed in medicine, and cannot now be conveniently discarded, it will be as well to state the idea that should be attached to them. Sensibility is the faculty of receiving im- pressions, and of being conscious of them. Ex- citahilitij, the power of being excited by stimuli or irritants, whether consciousness attend the act or not ; consciousness generally follow- ing their application to organs of sensation and volition, or of animal life ; but not when applied to those of involuntary motion, or of vegetative life, unless tlie excitation be carried to a great height. Susceptibility is the power not only of receiving impressions, but of being affected by them, whether the agents be physical or moral, and whatever may be their mode of operation ; consciousness either attending or not attending the act, according to the nature of the agent, and the organ it affects. Here it will he per- ceived, that sensibility implies a certain faculty ; excitability the power of acting only in one direc- tion ; and susceptibility of being affected in every way, according to the nature of the cause ; and that the meanings are the same, whether these terms be applied to a single organ or to the whole frame ; they representing intimately allied manifestations of life in organised parts. The states, moreover, which these terms represent, are variously modified in different persons, ac- cording to temperament and constitution ; but they are still more remarkably altered by the causes enumerated above, as well as by the suc- cessive changes characterising diseases ; and hence they become important signs of the condi- tion of vital power, and of the progress of func- tional and organic change. When existing in a very manifest or extreme degree, they are of themselves important pathological states, and in this respect they deserve notice. 70. Sensibility, excitability, and susceptibility, are great or especially prominent in delicate, debilitated, nervous, and irritable persons, and are morbidly increased by whatever lowers the ge- neral amount of vital power, if the functions of the brain be not impeded, or by excited action in any part of the cerebro-spinal axis not at- tended by pressure. They are much less lively in the robust, lymphatic, and phlegmatic constitu- tions ; and are more or lessdiminished in congestive diseases, particularly those of the brain ; in many cases of vital exhaustion, when the blood be- comes contaminated ; or when pressure takes place in any part of the cerebro-spinal centres or prolongations. They are likewise temporarily or permanently impaired by the intense, frequent, or continued impression or action of the same im- pressions ; and are restored or heightened by the abstraction of those which are of a lively or intense kind. Although excitability is easily and quickly roused in the delicate and nervous frame, and in states of simple debility, as specified above, yet it is more rapidly exhausted or alto- gether extinguished ; whilst, on the other hand, it is much less readily brought into action in the robust ; but when once roused, it is either more energetic or longer sustained than in the debili- tated. In these states of disease, which I have denominated secondary and complicated debility, and especially when the cerebro-spinal centres are congested or pressed upon, or when the cir- culating fluid becomes contaminated, the excit- ability is either much diminished or altogether lost, — chieHy, however, as respects voluntary organs, when the nervous system of animal life is affected ; involuntary parts still admitting of excitation, although not so readily as in health. Susceptibility, even more remarkably than the two other powers, is increased by debility and novelty of impression, and diminished by a robust and due manifestation of vital power ; by a repe- tition of the same effect, whether it be stimulant or depriment, unless each succeeding application of the same agent be made before that of its an- tecedent had altogether ceased ; as evinced by both the causes of disease and the operation of stimulating and narcotic remedies. The com- plete manner in which the susceptibility to be affected by certain causes of disease is destroyed by their full and adequate action, is shown by seve- ral of the specific agents. 71, Excitement may be of two kinds, accord- ing to the manner of its occurrence : it may di- rectly follow the impression of the exciting or irritating cause, in which case it is primary or direct ; or it may follow as a more or less remote effect of agents which lower the action 'either of a part or of the frame throughout, when it con- stitutes what is called secondary, or reaction, as in the case of the vascular excitement following the application of severe cold to a part, or the whole, of the external suiface. It is necessary to dis- tinguish between these two grand conditions or manifestations of excitement ; for the secondary, or that following indirectly the impression of lowering or sedative agents, may be variously modified throughout by the nature of the primary impression, and its mode of action. Hence one cause for the distinction here made. There are, besides, numerous other modifications of excite- ment, whether primary or secondary, referrible to the nature of the agent, and the parts of the body on which they have directly acted. The excitement caused by mental emotions is different in its progress, duration, and consequences, from that following the ingestion of spirituous or other stimuli ; and this latter, and indeed both, are different from the increased action following sympathetically the irritation of some organ or viscus. In the first, the cerebro-nervous and vascular systems are simply excited, the excite- ment terminating in slight exhaustion, unless some part has been injured during its conti- nuance. In the second, these systems are more than simply excited. A more manifest febrile state continues for some time subsequently, with concomitant lesion of the digestive functions or viscera, owing to the passage of a portion of the morbid agent into the circulation, and to the more immediate lesion experienced by tlie parts on which it made its primary impression. In DISEASE — General Doctrine of — Pathogeny. the third, the excitement is more especially ex- pressed in the organic nervous and vascular systems — the chief factors of life — owing to its extension to the whole of these systems, from the part in vifhich it originated, and still exists : hence its duration depends upon the primary lesion, and there is, in addition to the general or sympathetic excitement, disordered function of the part primarily aftected, as well as of those more intimately allied to it. Even from what has now been stated will appear the importance, in pathological and tlierapeutical points of view, of instituting a comprehensive analysis of those states of vital action to which the term excitement has been applied, and which bears a very wide and often indefinite signification. 72. (a) Primary or direct excitement is one of the most frequent effects produced by the agents which surround the body. It may pro- ceed from such only as are external to the frame, and to the part which it excites, or from such as are internal or intrinsic. Its phenomena and con- sequences vary as it arises from causes acting chiefly upon the organic nervous and vascular •systems, and their immediately related organs — upon the organs and functions of organic life — and affecting them principally ; or from such as act primarily upon the cerebro-spinal system, and organs of animal life, as those of sensation, re- flection, volition, contractility, &c. But the modifications which spring from other sources, especially from the properties of the agent, the intensity of its operation, and the number of parts aifected by it, are too numerous for a super- ficial view, even if the knowledge requisite to the attempt were attained. I must therefore content myself with noticing merely a few of the more prominent features of this condition of life. 73. a. Excitement of the si/s(ems and organs of vegetative life gives rise to various changes and phenomena, according to the nature of the im- pression, and its intensity. — Gentle excitation of the digestive canal increases the tone or in- sensible contractility not only of it, but also of all the circulating system, of the hollow viscera, and of fibrous or muscular parts. If the stimulus be considerably greater, either the same effect is produced, or the excitement is concentrated in the digestive viscera, and proportionately with- drawn from other parts. If the excitement be still greater, and be of a kind that irritates the villous surface, the secretions of this surface are augmented, and the muscular coats of the canal roused to more or less energetic action, followed by the excretion of their contents. 74. Excitement of the vascnlar system is ge- nerally a conse(iueuce of stimuli applied to the fligestivesurface, of irritation of any kind affecting the tissues, of local inflammation, of stimulating substances conveyed into the current of the cir- culation, of muscular exertion, and of the lively mental emotions, directly increasing the heart's action. 'J"he grade, duration, and effects of ex- citement originating in this system, vary with the cause and the state of the body at the time. Its gentlest, and, at the same time, most permanent, form is caused by the action of a pure, dry, and temperate atmosphere on the blood circulating in the lungs ; whilst the most tumultuous and the most Injurious, as respects its cflccls on the heart and blood-vessels, on the blood itself, and on the functions of vital organs, is that produced by in- ordinate or continued muscular exertion ; and by the absorption of various stimulating and irri- tating substances into the blood. Violent exer- cise affects the crasis of the circulating fluid (see Blood, § 134.), causes its irruption through tiie capillary canals of soft and yielding tissues, as the mucous surfaces and the parenchyma of the viscera, induces inflammation of the heart and arteries, and excites similar disease in predisposed organs. Irritating or exciting substances con- veyed into the blood, inflame the internal surface of the heart and arteries, alter the condition of this fluid, occasion various acute and chronic dis- eases of the vessels (see arts. Arteries, Heart, and Veins), and often severely affect the functions of secreting and excreting viscera, inordinately exciting or inflaming those depurative organs which carry them out of the system. 75. The portal circulation, and the liver, lo which it is distributed, may be especially ex- cited, owing to the quantity of stimulating, morbid, effete, or foreign matters carried into, or generated in, the blood which is returned from the digestive canal and other abdominal viscera. These may not only inflame the portal vessels, but also the substance of the liver; or, when the materials and elements of these vessels are of a less irritating kind, may give rise to morbidly in- creased secretion of bile, or to various organic changes and adventitious formations in this viscus. 76. The absorbent system is seldom or never co-existently excited with the arterial system' Indeed, inordinately increased vascular action is generally attended by a proportionate inactivity of the absorbents — both lymphatic and lacteal. Whilst it is frequently observable that a weak action of the arterial is accompanied with great activity of the absorbent system. It would seem as if (liminished organic action, or that state re- sulting from an insufficient exertion of the organic nervous influence on the arterial and capillaiy systems — the chief source of nutrition, struc- tural cohesion, and other vital manifestations — leaves, in consequence of the animal molecules being then held together by a weaker attraction than in an opposite state of this influence, a greater proportion of efl'ete materials, by which the absorb- ent vessels are excited to increased action. 77. Excitement of involuntary muscular parts is characterised by spasmodic contraction of either a permanent or alternating clonic kind — or rather of the various intermediate states between sthenic and asthenic, as marking the extremes — and is generally occasioned by irritants of the surface covering the hollow mus- cles, and more rarely by direct excitation of the nerves supplying them, and by morbid states of the blood, affecting either them or the nerves supplying them. Tlic asthenic or clonic form of spasm is most commonly associated with exhausted vital power, or an impure state of the circulat- ing and secreted fluids, the excitability of these striictures being more easily acted upon in weak than in robust frames ; and hence, when in action, is more rarely conjoined with excitation than with debility of other organs. It would seem that, in most spasmodic disorders, the excitation necessary to this state of action consists in the concentration of an undue proportion of vital DISEASE— General Doctrine of — Pathogeny. 575 power in the nerves supplying the affected muscles, and in the muscles themselves, and a proportion- ate abstraction of it from other parts ; and that when the excitability of an unaffected structure or viscus is energetically roused, the pre-existing morbid excitement will be derived from, or subside in, tlie parts in whicli it was seated. 78. The excitement of secreting viscera and glands presents various modifications and grades, according to the cause which induced it, and the elementary system especially affected. If the organic nerves supplying them be chiefly excited, the special functions tliey perform will be aug- mented— their secretions will be abundant. In this case the excitement will be more particularly limited to the organs whose excitability has been acted upon ; the morbid condition consisting chiefly of a concentration of vital manifestation or action in them and derivation of it from other viscera, thus occasioning one of the forms of Dkbility specified in that article (§8, 9.), the increased secretion generally preventing the oc- currence of febrile commotion or acute sympa- thetic disorder, unless it be carried very far. But when the excitement is seated principally in the blood-vessels, and assumes the form of inflamma- tion, the specific function of the secreting surface or organ will be variously altered ; tlie fluid elaborated, in this case, by a secreting surface, being either increased or quite changed from the natural state, or both, according to the degree and form of the excited vascular action vvith which it is affected ; and that secreted by glandular structures being also either much altered, dimi- nished, or entirely suppressed, as in cases of in- flammation of the kidneys, salivary glands, &c. ; this form of excitement not giving rise to the state of vital concentration observed in respect of the former, but frequently to general or sympathetic febrile commotion. Excitement of secreting vis- cera, then, assumes two forms, viz. that affecting chiefly the organic nerves — -the excitement of irritation, which is always attended by augmented secretion, and increased determination of the cir- culation to the part thus aflected, but not neces- sarily by true inflammation, although this may follow ; and that affecting the arteries and capil- laries— the excitement of infammation, which is accompanied with altered secretion, always in kind and frequently in quantity, — the quantity being often increased in mucous surfaces, and remark- ably diminished from glandular organs. 79. The excitement of the generative organs may proceed from the accumulation and irri- tation of their proper secretions, from mental emotions, and from the excitation of adjoining and related parts, as when the rectum or urinary bladder is stimulated. It is, more especially at its commencement, a purely nervous change ; the nerves of organic life which chiefly supply these organs being excited, either through the medium of the brain and sensorium, or in a direct manner, and as above stated. There is no part of the economy which furnishes so evident a proof as this does of the influence of the organic nerves upon the local or general circulation ; their excitation being here shown to be followed, unless the susceptibility and excitability be en- tirely exhausted, by increased determination, vas- cular action, and vital expansion of the tissues ; irritation of this class of nerves evidently deter- mining also in other parts of the body, particularly in mucous glandular and cellular structures, as well as in these organs, increased flux of blood, and occasioning the turgidity or vital expansion of the vascular canals running between the ex- tremities of the arteries and the radicles of the veins. The influence of sexual excitement upon all the other functions, especially at the period of puberty, and subsequently ; its sympathetic action on the rest of the nervous system giving rise to various disorders, particularly to the numerous forms of hysteria, anomalous convul- sions, epilepsy, catalepsy, &c. ; and its more direct operation in producing menorrhagia, fluor albus, inflammatory and organic changes of the ovaria and uterus, besides other disorders in both sexes, more especially referrible to premature, too frequently repeated, or too excessive stimula- tion, and consequent exhaustion of the excitability of those organs; are circumstances familiar to the practitioner. 80. S. Excitement of the organs of animal life may arise from intrinsic or organic changes, as from the condition of the organic nerves and ves- sels distributed to them, or of the blood itself; or from causes affecting the instruments of sensation, the general sensibility of the frame, or any of the mental manifestations ; or from those which excite to mental or physical exertion. Intrinsic changes may occur in the organic nerves and vessels, influencing the circulation through the brain, without any very obvious cause ; and these may be such as will excite not only this part, but all others depending upon it for their functions. It is more than probable, that with the brain, as with other viscera, the excitation may be seated chiefly in the organic nerves distributed to it, and hence assume more of an irritative state, or of an exaltation of function, without any particular lesion, as when it is simply excited by vinous or spirituous liquors: or the excitement may extend to, and principally aflect the blood-vessels ; giving rise, according to its degree, to certain states of inflammatory action, and to general febrile com- motion, with more or less lesion of function. It is almost unnecessary to observe that either of those forms of excitement, -related as now ex- plained, or both of them coetaneously, may ori- ginate in the exercise of those faculties, of which this organ is the instrument under the endowment of life. It often falls to the physician to trace the progress of excitement in relation to the brain, from the lively exercise of function characterising talent and genius, into exaltations, approaching to morbid, of one or more of the mental manifest- ations ; and next, into inflammatory action or mania ; and lastly, into a state indicating mental collapse, or structural change. The influence, particularly in susceptible persons, of lively or of violent impressions upon the instruments of sens- ation, in exciting the nervous centres, with which these instruments are in constant communication, is shown, not only by the effects of loud noises, and of a strong light, but also by violent or painful stimulation of any portion of the sentient system distributed throughout the frame. The sympa- thetic operation of external injuries, of extensive burns or scalds, of long-sustained or suppressed pain and sufferings, in exciting an irritative state of the cerebro-spinal axis and its membranes, in increasing their vascularity, and even in giving 176 DISEASE — General Doctrine of — Pathogeny. rise to effusion, with the related phenomena of delirium, tremefaciens, mania, general febrile action, or convulsions, is not the less true or im- portant, from its being overlooked, and the exact seat and nature of the consecutive suffering, as well as the more immediate cause of death, being misunderstood. 81. Excitement- of the voluntary muscles and locomotive organs takes place either from voli- tion, or from causes acting in opposition to it. Exercise promotes the synovial secretions, and the developement of the muscular structures and of their energies. But long-continued exertion increases the flux of blood to the related parts of the cerebro-spinal axis, and to the muscles them- selves. The morbid excitement, however, of vo- luntary muscles, which removes them out of the control of the will, has never been satisfactorily explained. Their more asthenic, or clonic anormal actions, wliich have been usually denominated convulsions, have been frequently traced to obvious lesion in the brain ; but they have likewise been as truly referred to causes seated in the prima via, irritating the organic nerves, and, through them, the voluntary nerves. The almost universal state of sthenic spasm, called tetanus, has been ascribed to inflammatory excitement of the arachnoid and other membranes of the spinal chord, from the circumstance of its having been detected in several cases, and by myself in two instances. But this change is as probably a consequence of the mus- cular excitation, as the cause of it. How, then, does this state of muscular action originate ? The answer is not easy. But when we consider the connection — anatomically and physiologically — subsisting between the muscular, the voluntary nervous, and the organic nervous, systems, the reasons wherefore irritants acting on either of the latter will affect the former, or those affecting the muscles themselves, or even their tendons, will, in certain circumstances, through the me- dium of the nervous systems, excite general mus- cular contractions of a permanent or recurring kind, will not appear so far beyond our compre- hension. If we connect the causes of these af- fections with the earlier phenomena, we shall generally find, even when the exciting agent has acted on an external part, that the organic or sympathetic nerves have been thereby irritated ; and that, owing to tiieir influence on the volun- tary nerves, a state of spastic action is kept up in the voluntary muscles, or recurs in them at intervals, the brain itself being affected only in those cases which present lesions of its func- tions. This opinion, published by me in 1821, subsequent experience — pathological and the- rapeutical— has confirmed, particularly in respect of those cases in which the brain is free from disease. (See arts. Convulsions, Tetanus.) It follows, therefore, as corollaries from the foregoing, that whatever irritates the voluntary nervous system, or makes an extraordinary demand upon its influence, or any of its functions, will excite it, in that part e-pecially upon which the particular influence or function called into oper- ation depends, or with which the part principally acted on is in communication ; and will determine to it an increased floiv of blood, which may, in certain circumstances, go on to inflammation or structural change ; and that irritation propagated to the voluntary nerves will so express itself upon the muscles they supply as to give rise to various states of spastic action, according as it originates in the sympathetic nerves, or in the brain, or is connected with other changes, functional or structural. Thus, mental exertion excites and determines the circulation to the head ; muscular exertion to the spinal chord ; and local irritation occasionally gives rise, through the medium of the organic and voluntary nervous systems, to spasmodic action of the muscles of volition, of either a remittent, intermittent, or continued form. 82. (b) Secondary or indirect excitement, or re- action, is that state of increased function or func- tions following the impression of causes of a de- pressing or sedative kind : as when the powers of life, having been for an indefinite time more or less lowered by cold, by terrestrial emanations, or by the effluvium from the sick, react upon the state of depression, and give rise to various phenomena characterised by excitement, which thus becomes one of the terminations of direct Debility (see that article). Great diversity of opinion has existed as to the way in which the economy reacts upon injurious and depressing agents. The vis medicatri.i naturx, vital resist- ance, the conservative powers of life, with other terms, have been substituted as explanations of what admits not of explanation, either by names, however expressive they may be, or by any other means. We can merely express what appears to be a law of nature, and describe certain re- sulting phenomena. We believe that the organ- isation is built up and kept together by the aid and intimate alliance of life, and that this prin- ciple or endowment may be modified by changes in the structures, the instruments of its functions, — that, in short, so intimate is the union of life with all the organs and tissues, that it is con- stantly influencing them, according to its varying states, and being itself influenced by them, as they become changed, both in respect of its local alliances and its general condition. And all that we can know respecting vital resistance and reaction must resolve itself into the general in- ferences, viz. 1st, That the innate powers of the vital principle, and the intimacy of its union with its material instruments, are such that it opposes, by means of these alliances — by its manifest- ations throughout the organisation, and by their mutual dependence and reciprocative influence — and by the manner in which it is influenced or modified by changes in its allied organs, — im- pressions of an injurious nature, the intensity of which is not so great as immediately to dissolve its connection with the structures, or at once to overwhelm its energies ; and that, whilst it there- by resists the further progress of change, it at the same time restores that which has been induced ; these phenomena constituting what has been called vital resistance : 2d, That when the morbid impression is energetic, a succession of changes generally follow in some part of the economy, owing to the circumstances now adduced, calcu- lated to remove the primary impression, and its more immediate effects, to recover the last ba- lance of vital action, and to restore the impeded or interrupted functions, — to these changes the terms reaction and secondary excitement have been applied ; which, however, may be variously mo- dified, in form as well as in degree and duration : DISEASE — General Doctrine of — Pathogeny. 577 3d, That when the impressioti and its immediate effects are very intense, relatively to the state of the person's constitution, tlie vital endowment may be thereby rendered incapable of resistance, or of developing any reaction ; and, when this is the case, it sinks more or less rapidly, before tlie cause that effected it ; sometimes, however, mak- ing certain feeble and abortive eflbrts at restor- ation, until, between its depressed state and the cousenuent changes on the tissues, its further manifestations and material alliance altogetlier cease. 83. If we endeavour to trace the succession of morbid phenomena characterising the simpler states of reaction, viz. those whicli take place from cold or from marsh miasmata, some idea of the way in which they are brought about may be formed. The impression made by cold upon the nervous, and, through it, upon the vascular systems, is evidently depressing, and vital action is diminished in the parts to wliich it is applied. V'ascular determination, consequently, takes place to other, more especially to internal, parts; which are thereby excited, and their vessels enabled to react upon the greater quantity of blood sent to them. The consequence of this, in secreting organs and surfaces whose vital energy is not im- paired, is an increase of their proper functions, as an augmented flow of urine, or free discharges from the bowels ; but, during a state of predis- position to vascular lesion in any of the parts experiencing the increased determination, inflam- matory action will be the result; and disorder will be extended thence to the whole frame, through the medium of the organic nervous and vascular systems, with especial affection of the in- ternal organ primarily disordered. In other cases, a less simple process may take place ; and the im- pression of cold not only may impede the exhaling and secreting functions of the surface or or^an on which it directly acted, but, through the me- dium of the organic nervous system, may also interrupt the action of other secreting organs; and thus give rise to increased plethora, attended by the retention of elements in the circulation, which the healthy performance of the functions would have eliminated from it. The necessary consequences of these states will be reaction upon the distending and exciting contents of the vascular system ; during the continuance of which, those organs which are most predisposed to dis- ease, particularly to inflammation, will suffer especially. AVhen miasmata act upon the sys- tem, it may be inferred, from the more immediate effects, that the nervous system of organic life is thereby especially impressed, and its influence diminished ; the vital actions more immediately depending upon it impaired, and the secreting and excreting functions impeded. As those changes are often gradually induced, a consider- able period of latent or of slight ailment may exist ; until at last they reach their acme, and the organic nervous energy is unequal to the active continuance of the circulation. AVhen this point is reached, animal heat is imperfectly evolved ; and the usual changes on the blood, as well as the proper functions of the viscera, are insufficiently performed. The necessary results are congestions of the large veins and yieldin rarely proceeds so f;xr as to overwhelm th(\ power of vital resistance, but more commonly ends in the developement of reaction. This is brought about by the greater fulness of the vascular system, and the more exciting properties of the blood, arising out of impeded secretion and cicretion, and re- tention of exciting elements 'in the circulation, assisted by the influence of the rigors attending the cold stage in accelerating the circulation through the veins. 84. From what has been already advanced, it will appear evident that the nature of the primury action, or impression made upon the system by the depressing cause, will not only determine the character of the more immediate phenomena, but will also modify the stale of reaction into which these may pass ; and even the kind or type of action will not terminate with the develope- ment of this form of excitement, but will gene- rally continue long afterwards. This is remark- ably exemplified by the morbid impression made by malaria, which will apparently act in the manner now stated, until the hot stage of the dis- ease, or that of reaction, is produced by it ; and, although this subsides, and is followed by free se- cretion, still the morbid impression is not thereby removed, or its type changed, but continues, in the organic nervous system, to exert its influence upon all the vital actions, and to reproduce the same series of morbid changes, until either it is ex- hausted by their recurrence, or some internal organ undergoes structural change, and the dis- ease thereby becomes complicated, or in some respects modified. Such is the case especially when it is left to nature. That the morbid im- pression is made chiefly on the nervous system, is shown by the periodicity of action, by the cir- cumstance of the successive changes and free evacuations terminating the paroxysm not bring- ing the disease to a close, and by the most effi- cacious means of cure being those which most energetically excite that system. That the im- pression is made upon the organic nervous, and not upon the cerebro-spinal, system, is shown by the more especial afiection of those functions and organs which the former actuates, and the general absence of any considerable lesion, even of the functions of the latter. 85. C. The intensitxj and duration nf excitement, whether primury nr secondary, vary remarkably, according to the cause, the constitution and habit of the patient, the circumstances in which he is placed, tlie agents or influences which continue still to act, and the states of the individual viscera, and of the circulating and secreted fluids. As re- spects intensity of excitement, it may be inferred that, where susceptibility and excitability are both great, intensity of excitement will also be great, but only relatively to the state of vital power ; and that it will so much the sooner, and the more completely, exhaust itself. But, where neither is considerable, action will be moderate, and reac- tion will more slowly and less perfectly supervene, AVhere, however, tlie excitability is great, and the susceptibility not remarkably so, as in many ro- bust states of health, excitement may not be so quickly or so readily induced, but it will be more energetic and of longer duration. Thus we per- ceive that, in delicate, irritable, or nervous con- structures, and all the phenomena of the cold stitutions, excitement is easily produced, and soon stage of intermittent or remittent fever ; which | arrives at its termination ; whilst the reverse ob- ^ oL. I. r n 578 DISEASE — Gexeral Doctrine of — Pathogeny, tains in the robust. In the phlegmatic, lymphatic, and cachectic constitution, it is excited less per- fectly and with greater difficulty, and often as- sumes a modified form, particularly as respects its terminations. When excitement arises directly from a cause that is constantly present, as when an irritating body is lodged in the intestines, or in any of the tissues, it generally is continued, sometimes remittent, and of long duration ; but when it occurs indirectly, or from a depressing cause, it may be either imperfect, or of short duration, the consequent exhaustion being great. This is evinced by diseases arising from malaria ; reaction being less perfect, and vital depression with its effects more remarkable, when the cause continues to operate, owing to the residence of the patient in the locality wliich generates it. Ex- citement is, moreover, modified by states of the air — humidity lowering it, and a dry, pure air developing it — by mental emotions, by the condition of the circulating fluid as respects purity, and by previous health and habits. How these will influence the occurrence and course either of primary excitement or of reaction, is evident. The state of the vascular system as to fulness has also a great influence upon both : pleUiora favours local excitement and determin- ation ; whilst, when very great, it prevents the free developement of reaction, and disposes to dangerous internal congestions in circumstances that would have otherwise induced a free and salutary reaction. The condition of the secretions, also, has a marked influence in the production and duration of increased vital action. The accumulation cf morbid secretions in the prima via or in the biliary apparatus may either im- pede the occurrence, or shorten the duration, of excitement ; or may determine it more especially to these parts. The state of the circulating fluid itself, particularly in respect of purity, will mainly influence this manifestation of vital power. If it contain stimulating elements in excess, reaction will be rapidly and strongly developed. But if materials of an opposite kind be carried into or developed in it, neither primary nor secondary excitement may at all appear ; the conditions of life throughout the structures being thereby depressed and modified, and the living solids ulti- mately rendered unfit for the performance of their functions. 86. I). The consequences and terminations of excitement, primary or secondary. — (a) The con- sequences of excitement are — 1st, Various morbid productions or plastic formations, capable of or- ganisation in certain situations, particularly when the vascular system has been affected in a sub- acute form ; as the formation of coagulable lymph, and album.inous exudations in the form of false membranes, &:c. ; — 2d, The exudation of sangui- neous, or sero-sanguineous, or muco-albuminous fluids ; as in cases of acute irritation of mucous surfaces ; — 3d, The production of various changes in the structures (see Inflammation), and ad- ventitious formations.' — {!>) The ter7ninations of excitement are varied according to the system or tissue principally affected, the nature of the cause, and the concurrent circtmistances. It has been stated as a general axiom, that excitement ter- minates in eiiiausfiim, the degree of which is pro- portionate to the height to which the former had been carried. I'ut there ai'e numerous exceptions to this, especialy as respects reaction ; which may be very slight, and yet the exhaustion may be extreme. The nature of the chief cause, numerous influences connected with the consti- tution of the patient, the surrounding media, and the mental affections, will modify the results. — a. Excitement, in any of its forms, may gra- dually subside into a slight and chronic grade, in which it may give rise to certain changes in the nutrition or secretions of the tissues affected ; to morbid depositions, and effusions in shut cavities or the parenchyma of organs ; or to increased secretions from mucous and glandular parts. — 0. It may also pass more rapidly into exhaustion, expressed more especially either in one of the nervous systems, or in the capillary and vascular system, or in the absorbent system, according as one or other of these had been principally dis- eased. (As to the efl^ects of exhaustion on the different functions, organs, and structures, see the article on Debility, § 10 — 25.) 87. 2d. Of perveuted States of A'^ital Power. — Having considered the simpler changes of the conditions of life, as manifested in the func- tions and characterising disease, those which are more complicated are next to be discussed ; and it remains to be shown, that the conditions and ma- terial alliances of life may not only be changed iti degree, but also in kind — the change in kind being, in some cases, unconnected with either excess or defect of action ; and, in others, asso- ciated with the one or the other ; but more fre- quently with depression, or an irregular distribu- tion of the vital energies, and concentration of them towards particular parts. The conditions of life present three states or stages of change in kind, without any reference to degrees of action : — 1st, Modifications in function, or vital manifest- ation, the proper offices of the part being vitiated, but the structure not being sensibly changed. 2d, JNlodifications of function, in connection with change in the constitution of the part; the natu- ral tissues having been metamorphosed by an alteration of their nutrition or secretions, and by adventitious formations. 3d, Modifications in function and organisation in several parts, or in the whole of the frame ; generally attended by a vitiation of the circulating fluids. 88. A. The conditions of life may he modified in kind, without any visible alteration of structure. This state is often the commencement of the others now particularised ; but it also frequently proceeds no further, or one form of it may merely pass into another, or terminate in health. Its slighter grades are more especially seated in the moving powers ; the organic and cerebro-spinal nervous influences, and the vital properties of con- tractile parts, being chiefly affected ; presenting accordingly, a great variety of morbid phenomena, not strictly referrible to either excitement oi- de- bility, but consisting chiefly of alterations of the sensibility of tliese systems; of pain and anxiety in their numerous forms; of cerebral affections, and disordered mental manifestations ; of lesions of the contractile and locomotive organs ; of modi- fications of the sensible and insensible contractility of parts, of their susceptibility and excitability ; and of many changes in the state of the secre- tions and excretions, independently of those that relate to quantity. In its more exquisite and widely diffused forms, this state proceeds from DISEASE — Gekeral Docthine of — Pathogeny. 57^ several of those causes which I have termed specific ; as malaria, animal and infectious ef- fluvia, endemic and epidemic influences, tiie rabid virus, various poisons received into the stomach, lungs, or circulation, &c. These, as well as the causes which produce tiie foregoing morbid conditions, evidently modify the nature of the vital functions, without any change of struc- ture or of the circulating fluids to account for the efl'ect ; and, when organic lesions do occur, they are consecutive, and sometimes accidental, alterations, which, in their turn, occasion a further change in tiie life of the part, or of the system generally. 89, B. The manifestations, us well as the struc- tural alliances, of life may he vitiated in a part of tiie body, from causes which determine to it a greater share of vital power ; or which act fre- quently or permanently upon its excitability, and occasion an irregular distribution of life through- out the economy ; or which abstract from it any portion of its nervous or vital-influence ; or mo- dify the condition of this influence by their primary impression or continued action, particularly in constitutions predisposed to some hereditary vice, or imperfectly organised, or debilitated. A similar result may also follow unwholesome or innutri- tious food ; tlie too frequent or excessive discharge of recrementitious fluids, as the seminal and pro- static ; the absorption of an imperfectly prepared chyle, or of morbid secretions ; or products gene- rated in the body ; repeated excitation of an organ, or continued irritation of a particular part, ending in change of stiucture, &c. When tiie vital actions of a part are depressed, or modified in any man- ner, or from whatever cause, and the change continues, owing to the vital endowment beino- insuflficient to overcome it by local or general reaction, and thereby to restore the healthy condition — the powers of vital resistance and restoration being incapable of removing the morbid impression, — a succession of alterations may supervene : the depressed or otherwise mo- dified life of the part will impede or diminish its circulation, or occasion its congestion ; thereby facilitating changes in its fluids, or giving rise to alterations of its secreting and nutritive processes ; and, ultimately, to various organic lesions of a chronic or malignant kind. Also, when the organic nerves and vessels of a part experience a continued or often repeated excitation of too slight a grade to extend far, or to affect related and sympathising organs, but sufficient to modify either its secreting or its nutritive actions, or both, its elementary tissues at last become more and more altered, adventitious formations are deve- loped, and the continued change in the conditions of life in the part at last gives rise to a complete metamorphosis of structure. The life of the dis- eased part, having thus formed to itself new alliances and instruments of altered manifest- ations, is thereby, in its turn, fuither acted upon, xintil the vital endowment is modified throughout the body ; the local alteration of structure expe- riencing, from this circumstance, a remarkable increase : and hence the properties of life, and of its structural alliances, act and react upon each other, until they become very sensibly vitiated, first, in the part primarily diseased, and ultimately in the whole frame. Such appear to be the origin and progress of various changes of structures of a local, specific, and adventitious kind — tu- bercular, scrofulous, scirrhous, fungous, carcino- matous, &c. 90. C. The functions of life and the organisation arc often vitiated, independently nf grades of aciion, either in several parts, or in the whole frame. — Alterations of this nature are frequently the most advanced stales of the foregoing ; commencing, as I have now stated, in modified vital manifest- ation of a part, or of the whole body ; and irre- gular determinations of it, which superinduce alterations of secretion and nutrition, give rise to changes of the elementary tissues,, and the form- ation of others which are adventitious, and ter- minate in the slate now imder consideration, with sensible ;dterations in the circulating and secreted fluids. But this general morbid condition may also occur more rapidly from causes producing a very powerful and quickly diffused impression on the organic nervous system, and affecting the circulating fluids; as several of the poisons, espe- cially the animal poisons, infectious maladies of a pestilential or malignant kind, epidemic diseases, exanthematous fevers, &c. In all these, the grades of vital depression, or of excitement, — although most important circumstances, and each of them forming grand pathological conditions, when diverging considerably towards either ex- treme,— are mucli less distinctive features of the nature of the malady — are not so pathognomonic— as differences of kind, which form the only true specific conditions by which we are enabled to distinguish one species from another ; as typhus fever from plague, yellow fever from small-pox, scarlet fever from measles, &c. In these, as well as in several other maladies, grades of action merely, or the depression or the excitement of particular functions, or the irregular distribution of vital power throughout the frame, are far less attributes of their nature, than are perversions of their properties. The conditions of life in these are altered more especially in kind, than in degree ; this alteration in kind constituting the true morbid state. Hence one principal reason wherefore a lowering treatment is much less eflicacious in changing the morbid aciion, than remedies which elevate the vital manift stations, and enable them to oppose progressive deteriorations in their con- ditions, and in the constitution of their allied structures. The delirium, and the morbid and apparently high vascular action, in many of such diseases, are often no reason wherefore remedies which excite the vital energies, and change their morbid actions, should not be employed. Every practitioner who has ventured beyond mere rou- tine, or the track pointed out by the numerous authors who have written to obtain that expe- rience of which their writings should have been the results, must have observed the beneficial operation of ammonia, camphor, cinchona, qui- nine, &c. in many cases of the above maladies ; and even in states of action where it became a question whether or not an opposite practice should be employed. 91. D. Of vitiation of the conditions of life, and oj their allied Jiuids and structures, conjoined with depremon or excitement. — (a) The association of depression with vitiation of the conditions of life, and with change of the fluids and solids, obtains in the last stages of the maladies already instanced, particularly in those called mahgnant ; whether originating locally or con>titutionally and ad- P p2 580 DISEASE — Altehations of vancing slowly to the condition now being con- sidered, as carcinomatous and their allied diseases ; or taking place in a more rapid and violent form, as malignant or adynamic fevers, tiie effects of animal poisons, &c. It would seem that all de- teriorations of the conditions of life are either consequences of, or otherwise related to, depression of them. If we trace tiie progress of those ma- ladies in which the change in kind is the most conspicuous, we shall find that vital depression is a characteristic of the impression of their exciting causes, even although these causes may also irri- tate tlie vascular system, or impart irritating pro- perties to the circulating fluids ; for extreme depression of the manifestations of life — of its conservative and restorative properties especially — is frequently conjoined with an apparently high, and, as respects rapidity of action, extreme vascular excitement. When great depression is the attendant upon vital and structural deterio- rations, the sensible properties of the circulating fluid and of the tissues — the crasis of the one, and the vital cohesion of the other — experience rapidly progressive changes, until the bond of union between life and structure is dissolved : alterations of a very conspicuous kind taking place in various parts of the body some time before death. (See article Debilitv, § 11. 26.) 92. (h) The excitement which is sometimes associated with an alteration of the conditions and material alliances of life is essentially morbid, antl is different from that which attends an other- wise unchanged or non-deteriorated state of the vital powers. Tin's morbid excitement is gene- rally expressed in particular systems and organs ; the vital actions of the rest of the frame being proportionately lowered ; but, whether it affect chielly the nervous or the vascular systems, or take place primarily or consecutively, it soon ter- minates in profound exhaustion, and in a more or less complete vitiation of the conditions and alliances of life. This is illustrated by the ad- vanced states of adynamic and epidemic fevers, by plague, &c. in an extreme degree ; and by the worst forms of erysipelas and eruptive fevei's in a less conspicuous manner. The excitement thus associated with other vital and material al- terations, may proceed directly from its efficient cause, which may excite or irritate, whilst it otherwise affects, the organic nervous and vas- cular systems; or it may take place indirectly, or consecutively on depression, and be more or less a state of reaction, developed by clianges in the circulating fluids, arising either from the absorption of irritating materials, or the uninterrupted elimi- nation of hurtful elements. But in either case a j)rogressive deterioration is observed ; the morbid conditions of life affect the secreting and excreting lunction-;, and consecutively vitiate the circulat- ing fluids, and even the living solids : and the irritating or vitiated state of the former excites the vascular system ; and thus alterations of the one reciprocally increase those of the others, either until the alliance of life with the structures can no longer be preserved, or until, in con- sequence of the exhaustion of the vascular action, which had been excited by the changes in tlie circulating fluid, and of tiie efl'ects of this fluid on the secreting and excreting organs, the balance of vital excitement is inclined in their favour, a new action takes place, their functions arc resumed, Exhalation and SEcnEtiox. morbid matters are thereby eliminated from the system, and health is ultimately restored; the change being either ushered in by critical plieno- mena, or promoted by remedies, the operations of which are merely an artificial or substituted crisis. (See art. Crisis.) 93. IV. Disease of the Fluids and Solids, ORIGINATING IN ALTERED CONDITIONS OF LlFE, AND GENERALLY IN THOSE ALREADY DISCUSSED. — iMorbid exhalation, secretion, and nutrition may be viewed as stages of the same organic action ; exhalation passing into secretion, and secretion into nutrition. Thus we perceive the natural exhalations, during disease, assume the characters of a secreted or elaborated fluid, and certain morbid secretions become more or less organised. I shall therefore notice — 1st, The simpler changes of exhalation and secretion ; 2d, Simple iTiodifications of nutrition; 3d, Pre- ternatural exhalation and secretion, comprising the transformations and misplacements of these fluids ; 4tii, Preternatural or metamorphosed nutri- tion; 6th, Adventitious formations, or productions, foreign to the economy — consisting of secretions — (a) insusceptible, and (/>) susceptible, of or- ganisation ; and, 6th, Of destruction of parts. 94. i. The sijii>ler Alterations of Ex- halation AND Secretion. — I have considered in distinct articles, on account of their great im- portance, morbid states of the Blood, and Con- gestions of this fluid. I shall here briefly notice changes in the exhalations and secretions. — /i.The exhalations into shut cavities, or in the areolae of the cellular tissue, may be increased from the follow- ing changes : — 1st, From deficient tone, refen ible either to the exhaling vessels and pores, or to im- perfect vital cohesion of the tissues, or to both : 2d, From deficient action of the absorbents, de- pending on diininished vital power, or on ob- structions in their course : 3d, From increased determination of blood in the vessels distributed to these parts; 4lh, From inflammatory action terminating in, or being followed by, effusion : 5th, From obstructed and retarded cn-culation of the venous blood returning from these places, par- ticularly in the liver, in the heart, lungs, &c. ; the conse([uent nervous and capillary distension favouring augmented exhalation : 6th, From increased vascular or ratlier serous pletiiora, owino- to the obstruction of some emunctory, — as ana- sarca, from the sudden arrest of the cutaneous and pulmonary exhalations ; and this, as well as other forms of dropsy, from inflammatory or structural disease of the kidneys: 7th, From the sudikii. arrest of an accustomed discharge from the pul- monary or digestive mucous surfaces, the morbid exhalation being determined to the contiguous serous surfaces ; and 8th, From two or more of the foregoing states conjoined. (Sec art. Dropsy.) 95. B. Altentlions (if the secretions depend — 1st, upon the state of the organic nervous in- fluence ; 2(lly, upon vascular action ; and, 3dly, upon the condition of the blood itself — upon the chief factors of ors^anic action and life; and they are thus indications of the manifestations of this principle. They may be — a. more or less dimiiiislied, — as from causes whic'h lower the organic nervous influence, or retard the cir- culation ; 0. or more or less increased, chiefly from agents which alter the distribution or determin- ation of organic influence, and consequently of DISEASE — Alterations of ExirALATiON and Skcretion, 581 the circulation and vascular action, either by ex- citing- the secreting structures themselves, and their intimately allied parts, or by depressing, impeding, or obstructing the functions of distant and especially of other secreting organs, and from a superabundance in the blood of the elements of which the increased secretion is formed ; y. or more or less altered from the healthy state, inde- pendently of diminution or increase of quantity, — as when the conditions of life are modified otherwise tlian in grade, and when tiie circulating fluid is vitiated, either generally, or merely in respect of the greater abundance of some one element; J. or both diminished in quantity and altered in quality, owing chiefly to lowered as well as modified vital power, to changes in the blood, and to morbid vascular action or inflam- mation of the secreting organ ; £. or lastly, they may be both increased and vitiated, either from a morbid distribution, and alteration of vital in- fluence and action owing to the impression of causes on remote but related organs, or from irri- tation or excitement of the nervous influence of the secreting structure itself, by agents acting either exteriorly to the vessels, or interiorly through the medium of the blood. Thus, various substances received into the digestive canal will increase and alter the secretions of its mucous surface ; and the accumulation of the elements of bile in the blood, with other eftete matters, will excite the liver, and give rise to an abundant as well as acrid or otherwise morbid bile. Such seem to be the chief pathological states on which morbid secretions depend. 96. From what has been stated, it will be evi- dent that, although alterations of the secretions are often dependent upon vascular action in its various states, from augmented determination to inflammation and its results, and upon conditions of the blood, organic nervous influence has also a marked eflfect in generating them, and even in originating the vascular disturbances to which they have been most generally assigned by authors. And although the secretions are constantly and conspicuously disordered in fevers and inflam- mations, yet they are also often remarkably altered in other diseases ; and, in some, even con- stitute the most prominent change from the healthy state. In fevers and inflammations, the secretions are more acutely aflected, but are more disposed to a spontaneous and salutary change, than in chronic disorders. In those ma- ladies in which their alterations form the chief pathological state, their natural conditions are very slowly restored ; and, even when the restora- tion is effected, their derangement is apt to recur from the slightest causes. This is exem- plified in diarrhcea, diabetes, and several other chronic diseases. 97. (a) The recremeiitilious, as the salivary, pancreatic, and gastric secretions ; or the partly recrementitious and excrementitious, as the biliary and intestinal secretions ; are more or less altered in most diseases, and from a diversity of causes. Agents, whose operations may be sufficient to excite the organic nerves, but not to produce inflammatory action ; or whose properties are calculated to afTect the influence of these nerves, rather than the action of the capillary vessels ; may give rise to an increase or otiier change of the secretions in -preference to inflammation. Thus, aromatics and stimulants will excite the flow of the gastric juices, but will not occasion- inflammation unless taken in very large quan- tities ; various substances will increase the in- testinal secretions, but not inflame the vUlous surface ; and mercury, in small or moderate doses, will remarkably augment the salivary fluid, but, in excessive doses, will inflame the glands and diminish the secretion. The effects of sti- mulants upon parts related or contiguous to those to which they are applied, also show the influence of the nerves on the secretions, — as the action of certain odours and savours on the salivary and gastric secretions, and of various purgatives on the biliary fluid. Even mental emotions affect the secretions through the medium of. the related or- ganic nerves supplying secreting structures ; and this eft'ect is not limited to the recrementitious fluids, but is also extended to those which are en- tirely excrementitious, as the urine, the sweat, iS:c. The influence of mental anxiety in pro- ducing both diuresis and enuresis, and of hysteria in occasioning the former, is well known. Defi- ciency of the recrementitious fluids causes dyspeptic, hypochondriacal, and other diseases of the digestive organs ; impedes or otherwise modifies sanguifaction and nutrition ; and favours the pro- duction of nervous aftections. JMorbid states of the biliary secretion are amongst the most im- portant in pathology. Impure air, want of exercise, increased temperature, rich or full living, stimulating liquors, &c., change both the quantity and the quality of this fluid ; rendering it either more copious, or of a deeper colour, and of a more acrid quality, than in the healthy state. Its more languid circulation through the ducts, or its undue retention in the gall-bladder, owing either to indolent habits, or to exhausted powers of digestion and assimilation, favours the absorp- tion of its more aqueous parts, increases its con- sistence, disposes certain of its constituents to crystallise or to concrete into calculi, and gives rise to various chronic disorders of the liver and of its related viscera. Obstructions to its passage or discharge, and various other circumstances, favouring its absorption on the one hand ; and torpor of the liver, or suspended action of this viscus preventing its secretion on the other, and causing the accumulation of its constituents in the circulation ; are important pathological conditions, and constitute no mean part of several acute and chronic maladies, besides those in which the biliary fluid is more especially disordered. (See Concre- tions— Biliarii; Jaundice, and Liver.) 98. (6) The secretions which are elaborated by the intestinal mucous surface are often remarkably changed, both in quantity and kind. Diarrhoea, dysentery, and cholera, present extreme increase and alteration, not merely of these, but frequently also of those poured into the digestive canal from the coUatitious viscera, originating in the pathological states adduced above (§ 95.) ; and illustrate the action of morbid secretions upon the surfaces with which they may come in con- tact. ^\'hen these secretions are produced in large quantity and altered quality, whether from a modified and excited condition of the vital actions, or from both, or from these conjoined with an impure state of the blood, the eflFects fol- lowing their passage over the villous surface are often very severe, and even disorganising. Thus Pp3 582 DISEASE — Alterations of an altered state of the salivary fluid inflames and ulcerates the moulh, tongue, and gums ; and the irruption of a large quantity of acrid bile irritates the duodenum, excites severe vomitings and purgings, sometimes with spasms of the vo- luntary muscles owing to the irritation of the visceral nerves acting upon the related spinal nerves, and, in more chronic cases when morbid secretion is prolonged, even excoriates the intes- tinal surface. A similar efl^ect very probably is occasioned by the intestinal fluids themselves, as shown in diisentery. But the injurious opera- tion of the fluids poured into the digestive canal does not arise only from their morbid increase. Diminished secretion, if it be attended by the accumulation and retention of the fluid in the secreting viscera, and of the mucus on the villous surface, may prove equally detrimental, but more insidiously and slowly. INIorbid in- crease of these fluids is usually an acute, and diminution of them a chronic, disorder. The latter is generally accompanied with alterations in their properties, especially if they are long re- tained. When the retention and alteration take place in respect of the mucus contained in either the solitary or aggregated follicles, dangerous or even fatal ulcerations, or other organic changes, may be the results. Their accumulations on the intestinal surface favour the production of worms, indigestion, constipation, colic, &c. The manner in which one secretion may be greatly increased, whilst the rest are suppressed, is remarkably il- lustrated in pestilential cholera. In this malady it would seem as if the efficient cause suppressed the vital manifestations of all other organs, de- termined the remaining vital influence and cir- culation to the digestive canal, and occasioned an uncommon increase and alteration of its exha- lations ; the serous portion of the blood being in great part evacuated in this situation, leaving a portion of its albumen lining the intestinal surface in the form of a muco-albuminous and tenacious exudation. 99. (c) The excrement itiovs secretions are also altered by the pathological states already speci- fied (§ 95.), The changes of these, as well as of the foregoing fluids, are important agents in continuing or aggravating disease, and furnish some of the chief indications of its nature, pro- gress, and terminations. — As the office of the organs which secrete this class of fluids is to expel those elements which are efl^ete, and would be injurious to the frame if retained in the blood, it must necessarily follow, that any interruption to this function, andespecially a complete obstruction or suppression of it, must be highly injurious, 'i'he dropsical effusions in various cavities follow- ing interruption to the action of the kidneys, and the more acute eftects of entire suppression of their functions, fully illustrate this. As a large quantity of ingested matters is carried into the blood, either directly from the stomach, or along with the chyle, and discharged from it by the emunctorics, it is evident, not only that the kind of ingcsta will afl^ect very remarkably the pro- perties of the excretions, but that obstruction or even interruption of any one of them will be followed by serious eftects, unless some other organ perform an additional office, vicarious of that which is suppressed ; and even in this case, diseaje will generally ultimately arise. Exhalation and Secretion. 100. a. The menstrual evucuation, and even the lochia, may be considered as excrementitious se- cretions, interruption or morbid increase of them being followed by similar consequences to those arising out of suppressed perspiration. That the menstrual discharge has essentially a depura- tory eflfect upon the blood, is shown by the alter- ations which it undergoes from morbid states of the circulation ; thus, I have seen copious cata- menia, the fluid being remarkably offensive, irri- tating, and otherwise sensibly altered from the natural state, form the crisis of erisipelas, and fevers; and a copious, offensive, and excoriating lochia evidently the means of preventing the accession of those adynamic and malignant dis- eases which often affect puerperal females, owing to the respiration of the impure air generated by several females confined in one lying-in apart- ment. The catamenia, moreover, is diminished, increased, vitiated, or changed into a serous or mucous secretion — into fluor albus — by the same agents and pathological conditions (§ 95.) as aflfect the other excretions. 101. S- JMorbid states of the perspiration, in- dependently of its increase or decrease, are not infrequent attendants on both acute and chronic maladies. They may even accompany appa- rently sound health, particularly when the bowels are habitually constipated ; this evacuation being sometimes so offensive, or both copious and offen- sive, as to render the person thus affected a nuisance to those near him. In this case, the skin evidentiy performs an office vicarious of the diminution of the intestinal secretions. The per- spiration is generally promoted by excited vital action of the cutaneous surface ; in which case it is fluid and warm. But it may also be much augmented by a very opposite condition of vital power, as by syncope, the skin being cold and clammy ; or by the extreme vascular depression, occasioned bj- excessive fear. In these cases, the lost tone of the integuments, and of the ex- creting pores, allows the escape of a portion of the fluids contained in the superficial vessels. This change also occurs in many instances of extreme vital depression, and shortly before death in many diseases. It is a pathognomonic symptom of pestilential cholera, in which it is most re- markable; the cold, wet, livid, and shrunk surface, being the result not only of the suppressed vital powers, but also of the circulation of venous blood. 102. y. The urinary, of all the excretions, is the least frequently suppressed ; the consequences of such a state being, if not soon removed, the most dangerous, or rapidly fatal. Whilst this excretion is very much influenced by the quantity and nature of the ingesta, and by the temperature and humidity of the air, it is also variously altered by disorders of digestion, sanguifaction, and cir- culation ; but more particularly by the conditions of the blood itself, by changes in the nervous in- fluence, and by injuries to the spinal cord. On the other hand, interruptions of the urinary dis- charge afi'ect the quantity and quality of the circulating fluid, disorder the nervous systems, ultimately increase the exhalations and the other secretions, and change the constitution of the soft solids. The other j)athological rehitions of diseased urine are fully explained in the articles Diabetes and Urine. DISEASE — PnETEnNATuRAL Exhalation and Secretion 103. ii. Simple Modifications of Nutrition may affect the whole frame, or a particular tissue or part, or merely a circumscribed portion of a single structure. The entire absence of parts or deviations in the distribution and arrangement of the elementary molecules and tissues, producing tiie various kinds of 77ionstrosities, will be left out of consideration, they .being of less practical in- terest. Those changes which are most important may be resolved into tiie following : — 1st, Alter- ations of bulk ; 2d, Modifications of density and cohesion, either of which may lead to various com- plicated lesions. Hiipertrophy , or augmented nutrition, perhaps never affects all the tissues simultaneously ; and although generally a disease, sometimes of dangerous import, yet, wiien seated in the muscles of voluntary motion, it cannot be con- sidered in any respect as a morbid change. It may be conjoined with softening or with uiduration. with increase or diminution of density and vital cohesion. Atrophy, or impeded nutrition, may also be associated with similar lesions. Any one of these four alterations, or either hypertrophy or atrophy conjoined with softening or with indur- ation, may commence in one, or at most two, of the elementary tissues, and extend to those most intimately connected with it. In these modifica- tions of nutrition — producing variations in size and density — it is understood that the ti.^sues still retain their distinctive characters. (See Atrophy, Hypertrophy, Induration, Soften- ing, and Ulceration.) 104. iii. Of preternatural Exhalation and Secretion. — A. Transformation of the Natural Exhalations and Secretions. — (a) The exhalations o{ serous surfaces, or shut cavities, may be altered according to the state of organic action in the sur- face producing them. — a. Exhausted vital action and cohesion will be followed, according to its grade, by the effusion of an aqueous, serous, or sero-sanguineous fluid, the relaxed state of the capillary pores and serous tissue allowing, instead of asimple halitus, the escape of the watery parts of the blood, sometimes with a portion of its albu- minous constituents, and even of its red particles ; and under certain circumstances, as of obstructed return of blood from, and congestion of, adjoining parts, and dycrasia of this fluid, — states not in- frequently consequent upon exhausted vital powers — the effusion of a portion of blood itself. — S. When depression of vital power and dimin- ished cohesion of the serous surface are associated with increased action of the vascular system and contamination of the circulating fluid, as in several adynamic fevers, the exhalations are not merely increased, they are also turbid and of various shades of colour, from a dirty grey to a dark brown — y. When organic action is morbidly increased in serous surfaces, the exhalation is clianged into a sero-albuminous matter, which is at first fluid or semi-fluid, but which afterwards assumes modi- fied states, according to the grade of constitutional power and morbid action, and tiie particular cha- racters such action presents, — whether that of 583 tain a turbid serum in the opener spaces. If the inflammation be of a diffused kind, the effusion will be more copious, and fluid, varying from a turbid serum to a dirty deep-coloured, or floc- culent, or sero-purulent, or albumino-purifonu matter, without any adhesion of the opposite inflamed surface ; and thus the morbid exhalation will be altered in all acute cases, as tiie in- flammation, owing to the degree of vital power, has partaken more or less of the sthenic or asthenic state. If the inflammation be of a chronic kind, the eff'usion will often be more dense and cohe- rent, or even become organised ; and, when the albuminous exudations consequent upon acute phlogosis have given rise to adhesions, or passed into a ciironic state, tliey fre([uently become transformed into cellular bands, with or without a turbid or flocculent serum contained in the unadherent spaces. 105. (h) 'I'he exhalations and secretions from mucous surfaces are also remarkably changed by the states of vital power, of structural cohesion, and of organic action. — a. When vital energy, and cohesion are much diminished (§ 91. 95.) the watery exhalation from these surfaces may be in- creased, and transformed to a serous, or sero- sanguineous, or bloody discharge; particularly in some malignant and cachectic maladies. If the tone of the extreme vessels be lost, vital ac- tion being at the same time depressed, the san- guineous exhalation will be what has usually been termed passive, and the crasis of the blood — both that effused and that circulating in the body — will be either lost or dt-ficient. But if vas- cular action be increased, the capillary vessels and pores being either expanded or relaxed, or the cohesion of the mucous tissue greatly impaired, the haemorrhage will assume more of the active characters, and the coagulation of the efl'used blood be more or less perfect. Between these grades of action, however, — the terms active and prtMue expressing the opposite extremes, — there will be every intermediate degree ; much of the appearances of the exhaled blood being those of its condition, or depending upon its con- dition previously to its discharge. (See H.e- morkhage.) 106. /3. Not only may the purely exhaled fluid be thus altered, but both it and the more strictly secreted fluid, as the mucous, may be disordered either consecutively or coetaneously. This change is usually a consequence either of local determination and irritation, or of inflamma- tion of a slight or specific kind. In such cases these fluids are thin, strous, ropy, glairy, albumin- ous, muco-albuminous, or puriform, frequently in succession, and secreted in large quantity. 'Ihus, when the respiratory mucous surface is irritated by catarrh, its natural secretion, which is scarcely evident in healthy becomes succes- sively transformed into these states; and a similar effect follows irritation of the digestive surface. In acute and sub-acute inflammations of this tissue, its exhalations and secretions are altered. pure phlogosis or sthenic inflammation, or that of I either to a muco-puriform matter, streaked with diffusive phlogosis or asthenic inflammation, or of the intermediate forms. If the organic action consist chiefly of the former, in an acute, or sub- acute state, tiie effused matter will be more or less albuminous, concrete, and spread over the in- fiained surface in variable quantity, and will con- blood, or to a puroalbuminous fluid, or to an albuminous exudation, which concretes in the form of a false membrane in the surface that pro- duced it. These modifications of the morbid pro- ductions are referrible to the degree in which either the exhaling or proper vessels of the sur- Pp 4 584 DISEASE ^PnETEPNATURAL Exhalation and Sechetion. face, or tlie iraicous follicles, are respectively af- ipemliar principles, have been secreted in unna- fected, and to the grade of vascular action. 107. (c) Tiie exhalation' usually poured into the areola: of the cellular tissue may be similarly transformed, and the various alterations may re- spectively depend upon the states of vital power, of vascular action, of structural cohesion, and of the crasis of the blood, particularised above, — a watery, serous, sero-sanguineous, a purely san- guineous, sero-albuminous, or a puriform fluid being poured out in this tissue, either where it connects more external or superficial parts, or forms the parenchyma of the viscera. In such cases, the transformed exhalation is either diffused or circumscribed, according to the state of action, and the consequent nature of the transformation. Thus, great depression or exhaustion of vital power and cohesion is connected with the diffused infiltration of a serous, or sero-sanguineous, or even a bloody fluid, and, if this state be attended by increased vascular action, with the infiltration of a puriform, or sero-puriform, or even an ichor- ous matter. But when vascular action is increased, and partakes of the phlogistic or sthenic characters, a puriform matter is formed, and is always circum- scribed (see arts. AnscESS and Cei.lui.ah Tissue). Tiic dift'used or imperfectly circumscribed depo- sition of a puriform fluid, which sometimes occurs in the cellular tissue, and the cavities of joints, consecutively upon inflammation or suppuration in the veins or in remote parts, during states of vital depression, have been explained in tlie aiti- clcs now referred to, particularly the former (§29.). 108. B. Of the Exlialations and Secretions uliich are adventitious to the situation, — or mis- jdaced Sccretio)ts. — (a) Fatty matter has, in rare instances been found in unnatural localities; as in the blood, in the urinary bladder, and in the intestinal canal, either in its cavity, or forming small tumours in the connecting cellular tissue of the parietes. — (h) A yellow mutter has fre- rjuently been observed colouring the various tissues and the secreted and excreted fluids, occa- sioning jaundice; and, although generally referred to the colouring matter of bile, has only recently been proved by chemical analysis to consist of that substance. This change is often connected with biliary obstruction or dis- order, but in many cases no such connection exists, as far as can be ascertained during life or after death. In such instances we must infer — and the inference is borne out by tlie very sudden manner in which the change takes place, and by other circumstances — that other organs and tissues than tlie liver may acquire the power, under certain circumstances of forming or separating the colouring, and probably other principles of the bile from tlic blood. 1 have been olten convinced by practical observation, that more than one of the principles of the bile have passed off with the perspiration, in persons whose biliary organs were torpid, and in those affected by chronic cutaneous ilisorders connected with hepatic obstruction, even although the colour of the skin remained unchanged. — (c) Choles- terine, another principle of the bile, has also been found in various secretions and structures; and therefore it must likewise be infericd, that it also may be sonietimcs separated from the blood by the tissues. — (^d) 'i'he urine, and certain of its tural situations. Facts of this description were often related by the older writers ; and the more precise researches of modem times have deter- mined the circumstance, as respects the presence of some of its principles in the supplementary secretions, which were formerly considered a metastasis of the urine: thus, uric acid has been detected in the sweat, and in gouty concre- tions, &c. 109. In respect of the causes of the misplace- ment of the secretions, it may be concluded that, as the elements of all the secretions exist in the blood, they may be occasionally separated from it by other organs or tissues, than by those which are the usual instruments of such separation and combination into the state of perfect secretions, particularly when the organs thus appropriated are diseased to the extent of impeding their func- tions. In such instances, however, the accumu- lation of the elements in the blood does not excite other organs to the elaboration of a secretion similar to the natural one ; but merely to the elimination of the particular element or elements that may be in excess, in a sepaiatc form or dif- ferent state of union to that which it naturally presents. Thus, when the urine is suppressed, it is only urea, or uric acid, that is found in the sup- plemental evacuations ; or when the bile is ob- structed, it is not elaborated bile, but certain of its principles, especially its colouring matter, that tinges the secretions; and, in aggravated cases, the structures, or when the milk is suppressed, it is not milk that is found in oilier situations, than in the breasts, but cascum, &c. In the cases of obstruction of the urine and bile, the respective organs being unable, either from pa- lalysed nervous influence, or inflammation or structural change, to perform their depuratory functions, the aqueous and eft'ete elements which consequently accumulate in the blood are either separated by the tissues, or pass oft' through other channels, but in different staler of combination, the appropriated instruments of the function being incapable of elaborating them into the natural secretions. In cases, however, where this unna- tural separation of elements occurs without evi- dent interruption of the functions of the organ destined to excrete them, we must necessarily infer an exubciant formation of the elements in question in the blood, and a consequent elimina- tion of them through additional channels. It is not uncommon to observe jaundice associated with a natural or copious secretion of bile, and even with a greatly augmented evacuation of this fluid ; we must, therefore, conclude that the co- louring elements are formed so abundantly in the circulation, as not to be sufficiently excreted from it even by the increased action of the liver; and, consequently, that they are accumulated to the extent of being separated by the difterent struc- tures. It may further be conceded, that the elements may be combined into more or less perfect secretions in the organs destined to excrete them ; but that, before they are discharged from them, or excreted from the system, tlioy may be occasionally taken into the blood, and separated from it by other structures, and through difl'ercnt ways. 110. iv. RIet/Njioiu'Iiosed on TnANsionjiED JN'uriurioN — or that change which consists of the DISEASE — METAMonniosED ou xnANSFonMED Nutrition. 585 transition of one tissue into another — is of a less simple kind than that noticed above (§ 103.) — a.. ]M. Andkal has shown that the same principle of developement which obtains in the foetus, extends also to the morbid transformations of the natural tissues ; and that as the cellular is the matrix of the other textures, so it may, from disease, be changed into most of the other simple structures. There are, iiowever, certain facts connected with such alterations deserving notice:— 1st. Cellular tissue, in being changed into some otlier, no further affects the proper texture of the organ, whieh it either invests or of which it forms the parenchyma, than in causing its atrophy in some cases. — 2d. Cellular tissue cannot be transformed into the nervous, unless in situations where the latter pre- viously existed : thus, nerves that are divided, and of which a portion is removed, aye first connected by cellular tissue, and subsequently by the ex- tension of medullary substance from each divided extremity. ^-3d. Other tissues, whose continuity has been resolved, have the breach repaired, in the first instance, by means of the production of coagulable lymph, which passes into the state of cellular tissue ; this latter being frequently af- terwards transformed into a texture analogous to that which was divided ; thus, divided muscles are reunited by a fibrous tissue ; and so on, as respects bone, cartilage, &c. — 4th. The nature of the trans- formation of cellular tissue is sometimes regulated by the functions of the part : thus, when sub- jected to friction, it becomes a serous membrane ; when exposed to external agents, it becomes tegumentary, &c. — 5th. Other tissues, besides the cellular, may be transformed, but the alter- ations are similar to the natural changes they experience in the processes of foetal growth ; car- tilage being converted into bone, the mucous tis- sue into the cutaneous ; or a reverse course may be followed, in respect both of these textures and of tlie muscular tissue, which can be changed only to the fibrous. Hence the metamorphoses of cartilaginous, osseous, fibrous, muscular, cutaneous, and mucous structures are much more restricted than those of the cellular. — Gth. All tissues, when remarkably atrophied, present evi- dence of degeneration towards their primitive or rudimentary state, viz. to cellular tissue. 111. B. The causes of the mutation of one tissue into another are not easily ascertained. Some have ascribed it to inflammation or irritation. l>y ascribing it to modified nutrition, we merely express an obvious fact, the cause of which is thereby not more nearly approached. It certainly is not occasioned by inflammation, although se- veral of th.e transformations may be accidental or contingent consequences of that condition, espe- cially in its slighter grades; for, however we may irritate, or determine blood to a part, we shall not transform it, unless under circumstances identical with those that are concerned in the production of those alterations. The series of analogous changes that take place in the fcetus is not connected either with irritation, or with in- flammation, or with opposite states of organic action. Wc can, therefore, impute (he meta- morphosis only to modifications in the conditions and manifestations of lit"e influencing the nutri- tion of the organ or part ; for we know that in- crease of function, or of vital manifestation, will often occasion a transformatioa of nutrition in a certain direction — will change cellular tissue to a higher grade of structure, as "in the develope- ment of the organs of the foetus ; whilst the diminution or privation of function — that is, of its due vital endowment, — will transform the organ which performed it into a more rudimentary tissue : thus, a part becomes atrophied from being unex- ■ ercised, an unemployed muscle is reduced to a pale fibrous structure, and an impervious artery or duct to cellular tissue. In briefly noticing the specific metamorphoses of tissue, I shall com- mence with the simplest, and generally the earliest change, in the ascending scale of trans- formation. 112. (a) The cellular tissue having always existed as the matrix of the compound structures and organs, it is obvious, when, owing to sus- pended or abolished function, the superadded organisation devoted to such function is lost, that the cellular tissue will then remain as the pri- mitive structural base. This is shown by the evidence already adduced. The coagulable lymph exuded during inflammation of serous surfaces may become organised into cellular, and even into serous tissue, and be the matrix of certain other changes (§ 140.). 113. (/>) ThestniKs tissue, and the cellular, are often tr.insformed one into tlie other. Cellular substance may have serous cysts developed in it, in almost any part of the body, either from friction or pressure; or from the lodgement of a foreign body, or the existence of a coagulum, &c. But, independently of these causes, it may have cysts of various dimensions formed in it, either where it invests the different organs, or enters into their internal structure ; the parenchymatous organs sometimes being either partly or altogether transformed into a serous sac, or having these productions attached to them. AVhen thus de- veloped, they have been attributed to irritation by some, to a diminution of the natural action by others, and to perverted action by several patholo- gists. There can be no doubt of the last being the case, whether other states of action may accompany it or not. 114. a. Serous cysts \RTy from the size of a mil- let-seed to that of a child's head ; they exist either singly or in clusters, have their external surface in contact with the organ in which they are pro- duced, and are either intimately connected with the cellular tissue surrounding them, or entirely without any organised connection. lied vessels are seldom seen passing into them. The struc- tures immediately surrounding them may retain their natural appearance ; or may lose it for a time and regain it ; or may be shrunk and con- densed : or be altogether atrophied, and expand- ed over the cyst, as in the liver, brain, lungs ; or be merely congested, or moreover be softened, indurated, or surrounded by pus, or by tuber- cular matter, or by blood. In this last case, the cysts themselves are sometimes broken down, or partially destroyed. The investing cellular tissue may also become fibrous, cartilaginous, osseous, or even calcareous ; and additional layers thus may be superimposed on the original cyst. The internal surface of the cysts may be smooth, or may present changes altogether similar I to those which serous membranes experience I from disease; it may be uneven, rugose, granu- 1 lated, covered by specks of concrete albumen, or 586 DISEASE — Metamorphosed or transformed Nutrition. lined by false membranes, with or without cellu- lar bands or partitions running across the cavity. 115. (3. These cysts usually contain a limpid fluid, but other substances have been sometimes found in them, viz. 1st, a serous fluid tinged with the colouring matter of blood ; 2d, blood, with its fibrinous coagulum ; 3d, fluid, or semi- fluid substances, of a dark, colour, probably con- sisting of altered blood ; 4th, a flocculent serum ; 5th, a mucous fluid ; 6th, a fatty substance ; 7th, ciiolesterine ; 8th, the difl^erent varieties of pus ; 9th, tubercular matter resembling that found in the lymphatic glands of scrofulous persons; 10th, a solid elastic substance, probably consisting of altered albumen; 11th, several species of entooza. Occasionally two or more of these substances are found in different com- partments of the same cyst; and without any appearances in its parietes to account for the circumstance ; thus furnishing an additional proof that the state of the secretion does not always arise from any appreciable modification of structure. As to whether these cysts are formed before or after the matters found in them, it may be stated tiiat, in respect of those contain- ing the first three kinds of fluids, and possibly of some others, there can be no doubt of the efl^used fluid having caused the formation of the cyst en- veloping it ; but as to those tiiat contain difl^erent productions in separate parts of the cells, it must be inferred that the matter is secreted by the pa- rietes or part of the cyst in which it is found. 116. (c) Mucous membrane may he produced from the transformation of the cellular tissue — 1st, in the place of the old mucous membrane, which had been ulcerated or otherwise destroyed ; 2d, in abscesses without external outlet ; and 3d, in abscesses having some external outlet, and old fistulous passages. In the progress of this change, the cellular tissue becomes successively smooth, vascular, and raised to the same plane as the continuous surface. It then admits of being detached in shreds from the subjacent tissues ; and, in the alimentary canal, ultimately becomes studded with villi. But in abscesses and fistulas villi are not formed ; and neither there, nor in the digestive canal, does the transformed mucous surface contain mucous follicles. IMeckel and Andrai, record some cases, in which tlie internal surfaces of cysts containing a viscid fluid could scarcely be distinguished from mucous mem- brane. I have seen this appearance in the ovarium, where it has been principally met with. The free surface of the false membranes formed on serous surfaces has, in one or two instances, where there existed an external opening, been con- verted into a mucous-like tissue. 117. ((/) The ciUniieiiHs te:iture is generally incompletely reproduced after being destroyed ; the newly-formed part being composed of a cel- lulo-fibrous layer, without the vascular tissue in which the colouring matter is deposited. Owing to this circumstance, cicatrices in the black races are usually white. But there are excep- tions ; the vascular layer being occasionally de- veloped at a later period, and the newly formed texture assimilated to the surrounding surface. When mucous membrane becomes constantly exposed to the air, it generally assumes more and more of the characlers of the cutaneous structure, but the transformation is by no means complete. 118. (e) Fibrous productions are also evidently formed at the expense of the cellular tissue, the change from the latter admitting of being traced through its various gradations. They are gene- rally composed of delicate filaments, sometimes parallel to each other, at others matted together or interlaced, and occasionally coiled, convo- luted or rolled up ; and usually containing cellu- lar tissue between the fibres. These productions may exist as bands, distinct patches, and as rounded or irregular bodies. They may be either pale, or slightly vascular, or exceedingly so ; and be disposed in the shape of chords; or in that of membranes surrounding or covering other parts or adventitious formations ; or in the form of tumours. 119. a. Fibrous tunwurs vary as follows : — 1st, They are homogeneous throughout, and consist almost entirely of condensed fibres ; 2d, They are lobulated, having cellular tissue interposed be- tween the lobules, in which the fibrous structure is more or less distinct and variously disposed, as stated above ; and, 3d, They are, according to M. Andral, granulated, the granules being dis- posed in lobules, connected by cellular sub- stance. Fibrous transformations often undergo further changes, portions of them becoming car- tilaginous, or even osseous. But, instead of these changes, they sometimes experience acute or chronic inflammation, which may disorganise either the fibrous structure or its connecting tissue, giving rise to infiltrations of pus, or of blood, or depositions of fibrine, the purely fibrous tumour thereby undergoing a complete metamorphosis. 120. (3. To what cause is the fibrous transform- ation to be imputed 1 This can be answered only by adducing the circumstances under which it has been observed to occur. — 1st. Fibrous growths sometimes appear in an apparently healthy state of the organ in which they are found, and are so completely isolated, a few delicate cellular and vascular connections ex- cepted, as to admit of being removed without afl^ecting the adjoining structure. — 2d. The pro- per tissue of the organs has occasionally disap- peared as the cellular tissue has become trans- formed into the fibrous state. — 3d. The organs in which they are developed are sometimes the seat of inflammatory action, but it cannot be deter- mined whether inflammation is the cause or the effect of the transformation. From these facts it may be inferred, that no conclusion, as to the im- mediate cimse ofthe production of fibrous growths, can be offered with confidence ; but that they may probably arise from altered organic nervous influence of the part modifying the state of vascu- lar action and nutrition. 121. (e) Cartilaginmis transformations are often found under the same circumstances as the fibrous. They are met with in the following situations : — 1st. In the cellular tissue interposed between organs, or connecting different textures, — as in that sub- jacent to serous membranes -usually in the form of grains, laige spots, or irregular depositions or incrustations ; and either unattended by any oilier lesion, or accompanying changes in the serous mcmbiane under which they are produced, or in the substance of the viscus ; these changes being of the most diversified kinds in the dilForent cases, 'i'hcy may also occur in the cellular tissue sur- rounding morbid secretions and productions, DISEASE — METAMOni'HOSED OR TRANSFORMED NUTRITION. 587 either as masses, or as membranes ; and of them- selves, or with tlie serous or the fibrous transfurm- ations, or with both, may form the cysts or en- velopes of tliese secretions. — 2d. In tite structure oj' parendiymati'us organs, the cartilaginous pro- ductions are formed, like the fibrous tissue, at the expense of the cellular. I'hey may be de- posited in masses, or in the form of envelopes of various morbid secretions. Whilst cartilage is most frequently formed beneath serous mem- branes, these membranes themselves never ex- perience this ciiange. It is rarely produced in the cellular tissue under the mucous or villous coats; and very rarely in these coats themselves, and ^then only consequently upon repeated or prolonged irritation. The osseous tissue may also be transformed into cartilage. But in re- spect of the change of muscle, and of parenchy- matous viscera — as the liver, spleen, kidneys, &c. — into cartilage, it is more probable that the developement of this substance in the cellular tissue merely causes the disappearance of the proper structure in the part thus altered. There is, however, little doubt of a portion of brain being sometimes changed into cartilage. — 3rd. In cavities lined by serous or synoviat membranes, cartilages have been found, either entirely loose, or attached by a membranous prolongation or pedicle to some part of the parietes. They vary from the smallest size to that of a bean, and are of different forms. They are generally homo- geneous and elastic, and sometimes they contain osseous points in their interior. They have been found in the peritoneal cavity, by Lafnnec and Andral ; within the serous membrane of the brain ; within the tunica vaginalis testis; in nearly all the articulations, but most frequently in the knee and shoulder joints ; and even loose in the interior of serous cysts, by Andral. As to their formation, this pathologist thinks, " that they de- rive their origin from their fluid exhaled in serous and synovial cavities;" whilst Beclard and Laennec suppose that they are originally formed on the external surface of the membranes lining these cavities, and that they gradually protrude before them the portion of membrane covering them, thereby giving rise to the pedicles by which they are sometimes attached to the sides of the cavities. Morbid cartilaginous formations vary from a fibro-cartilaginous or mixed state, to one purely cartilaginous, in which the internal struc- ture is perfectly homogeneous; they also vary in firmness. They occur in the following situations in some one of these states : — 1st, In false articu- lations ; 2d, At the extremities of bones of which a portion had been long previously amputated ; 3d, In the situation of ligaments belonging to an- chylosed joints; 4th, In cicatrices; 5th, In com- pound tumours of the uterus, ovaries, and thy- roid ; 6th, In the fo:in of incrustations or patches in the parietes of arteries; 7th, In the cysts and envelopes of morbid formations ; 8th, In certain parenchymatous organs; 9th, In the interior of articulations; and 10th, In serous cavities, both natural and morbid. 122. (_/') Ossiform formations differ in form, and somewhat in constitution, from the natural osseous tissue ; and are generally confined to the cellular, the fibrous, and cartilaginous tissues. — a. The cellular substance is not susceptible of this change in all parts of the body ; for ossific deposits have not been found in the sub-mucous although frequently in the sub-serous, cellular tissue ; the serous membrane apparently still covering the osseous fonuations, and giving them a smooth pale surface. This change has been found in the sub-serous tissue in every part of the frame ; and it generally begins with slight thicken- ing, and the infiltration of a turbid fluid ; morbid nutrition, very evidently in this instance, and, in- deed, in most other cases, as I have above con- tended, commencing in vitiated secretion. The connecting cellular tissue between the coats of arteries, especially that below its serous coat, is still more frequently ossified than the foregoing. Also the cellular substance surrounding fistulous openings, foreign substances, and adventitious secretions or productions, often become incrusted by plates, or grains, or complete layers of osseous matter. Thus tubercles, hydatids, &c. are some- times contained in osseous envelopes. 123. /3. Ossification of Jibrous and cartilaginous textures is a part of the process of developement in foetal and early life ; and the process goes on through life, although generally in an impercepti- ble manner, until old age advances, when it ex- tends more rapidly, and seizes on additional parts of these textures ; the fibrous tissue of the arterial system, and the cartilages of the ribs, larynx, trachea, &c., being then often converted into bone. But when parts not liable to this change in old age are aflfected by it, or when those disposed to it are prematurely transformed, the circumstance is re- ferrible to disease. The experiments of JMM. CnuvEii.HiEH and Rayeu show that a certain degree of inflammatory action or vascular in- jection of fibrous, fibro-cartilaginous, or carti- laginous tissues precedes the osseous deposit ; and hence the reason that fractures or injuries are often followed by ossification of the adjacent parts of these textures ; and that siinple irritation of a slight but continued form has given origin to this alteration. But, in many instances, no cause or appearance of inflammatory irritation could be traced to the ossified part ; as when the coats of arteries, the dura mater, the capsule of the spleen, &c. are thus affected. 124. y. The form, texture,- and constitution of ossiform formations vary much, both from one another and from the natural structure. As to form, they are — 1st, Granular, and either isolated or in groups, their number being extremely vari- ous, and sometimes remarkably great ; their size extends from a minute point to that of a pea; they are rounded, with either a smooth or a rough surface. — 2d, Lamclliform or membraniform ^ developed in the adherent surface of serous mem- branes, or in the pariete? of cysts, &c. — of vari- ous sizes, and sometimes of several inches in dia- meter, and consisting of thin irregular plates. — 3d, Amorphous, — generally found either alone, or in conjunction with other morbid productions in the parenchymatous organs ; they consist more of a phosphato-calcareous deposition, than of an ossiform formation. Their texture is — 1st, Ho)nogeneous, and without fibres or any division into compact and spongy parts; 2nd, Obscurely fibrous or radiated, and more nearly resembling the natural flat bones. The con- stitution of natural bones is generally uniform ; but that of the ossiform productions varies re- markably in respect both of their earthy or saline 588 DISEASE — Adventitious constituent?, and of the animal matters they con- tain. In some instances, the calcareous salts are found with little or no admixture of animal matter. 125. V. Secretions and PnoDUCxiONS ad- ventitious TO THE Economy. — The morbid productions about to be considered present an infinite variety of appearances, in respect of con- sistence, colour, form, &c., occur under the most opposite circumstances, and are connected ^yitll the most diversified phenomena at their origin and during their progress. They have all a tend- ency either to increase by the juxtaposition of new particles; or to grow by the assimilation or intus-susception of matters transmitted to, and circulating in, their own vessels. But, in either case, they undergo various alterations, arising out of their own intrinsic properties, or of the sur- rounding parts, or of the state of the constitutional powers and vascular action. Such of them as are unorganised are liable to changes chiefly from the conditions of the system, and of the parts in whicii they are seated. These changes are of a more limited extent than are experienced by those \vhich are capable of performing certain inde- pendent actions ; and are generally confined to the removal by absorption of the more fluid parts when they are soft, and of the eflTusion of a fluid matter when they are hard and irritating to the parts containing them. Productions, however, whicli become organised, exercise functions of their own : they have become the instruments, under the influence of a derived vitality, of per- forming and secreting nutritive functions peculiar to them ; and they thereby not only perpetuate and extend the morbid condition in which they originated, but also superadd others, either of a local or constitutional kind, or both. 126. a. The local c/w/i^q-es connected with adven- titious productions are various : — 1st, The parts in which they are developed may be natural, or merely compressed by theii bulk. — 2d. The sur- rounding parts may be inflamed, injected, or con- gested, and variously coloured. — 3d. They may be either indurated or softened, at the same time that they are pale or injected. — 4th. They may be hypertrophied, or remarkably atrophied in other instances ; but most frequently the latter ; the presence, and probably the pressure, of the ad- ventitious formation diminishing their nutritive action. — 5tli. 'I'hey may exhale or secrete a fluid or puriform matter, which may dissolve the inor- ganised productions, or soften them, and dispose them to undergo further changes. The states now enumerated of the surrounding parts, or cer- tain of them only, may take place in succession ; and may follow one another with various degrees of rapidity. 127. S. The phenomena which attend their commencement are very diversified ; but the powers of life more frequently evince various grades of depression, and even of perversion, than tliosc of excitement. In many instances, however, such changes are very slight or scarcely percep- tible ; but they generally become very manifest in the progress; of the morbid production ; the func- tions of organic life — circulation, secretion, nu- trition, excretion, &c. — experiencing more or less disorder. When ailecting internal viscera, this disturbance n)ay exist long without the nature of the lesion being more than suspected. J5ut the Secretions and Productions. symptoms, local as well as constitutional, will vary not only with the seat, but with the changes constantly supervening in the productions them- selves, and in the structure surrounding them. 128. y. The immediate causes of adventitious productions must necessarily vary vvitli their na- ture. In most of them, the constitutional powers are in fault; and, in some, the cause is chiefly local. Some pathologists have referred them to debility; others, to increased organic action or ir- ritation ; and several, to the perversion of the functions of secretion and nutrition. The first and last opinions conjoined will, perhaps, the most nearly approach the truth ; for it must be admitted that the perversion of these functions often origi- nates in, or is associated with, debility. Those secretions, however, which proceed from sthenic or phlogistic vascular action, as healthy pus, coa- gulable lymph, &c., do not fall within this descrip- tion. With those exceptions, therefore, they may be imputed to that condition of life to which 1 have already attributed them viz., to depressed as well as perverted manifestations of vital power (§ 91.). The circumstances, extrinsic and intiinsic, in respect of the frame, under which they appear, — the agency of cold, moist, and impure air, of deficient and unwholesome food, and of the de- pressing passions, in producing them, — furnish strong evidence of the accuracy of this inference. Even as respects those changes which most fre- quently commence with signs of local irritation or vascular excitement or congestion, the general conditions of life, and, consequently, the whole economy, are more or less in fault ; and are es- pecially concerned in producing the local change of which irritation, or any other form of local agent, is merely the efficient cause. 129. J. The terms which have been assigned to the various productions falling under this head, have been sufficiently arbitrary ; and a greater desire has been evinced to discover new species, and to impose on them new names, than to view them as they are actually presented to our ob- servation, and without reference to the descrip- tions and opinions of their nature — too often erroneous, and improperly mixed up — that have been given of them. Nor have the arrangemenis of them that have been attempted been less arbi- trary. Certain of them iiave been named, from their form, as tubercle ; others, from their colour, as melanosis; and some of them, from their re- semblance to healthy structures, as medullary, mammary, encephaloid substances : and they have been variously arranged ; as, into such as are products of secretion without organisation, or of nutrition with signs of organisation. It must be evident, however, that the difference is chiefly that of terms ; for nutrition is only a modification of secretion. They have also been divided into the enciisted and the non-cnc>istcd ; into the local and the conslilutional ; and into the inet t , or not necessarily noxious, aiul the malignant, or con- taminating. These distinctions, although very important, are not uniformly preserved ; for the same substance may be cither encysted, or non- encysted or infiltrated ; and the alteration, which is merely local in some cases, may be constitu- tional in others, or become so; and that which may long or always remain inert in some instances, may sometimes be malignant and contaminating from the commencement. Besides, they may DISEASE — Adventitious Secretions and Productions oris^inate either in changes in the nutrition of the natural tissues, the adventitious secretion being a consequent lesion ; or in the production of new substances, alterations of nutrition being later lesions ; or even the secretions, as well as the na- tural tissues in which they are elaborated, may undergo subsequent transformations. So extremely diversified are the causes which induce these diseases; the states of vital manifestation and of vascular action by which they are attended at their origin and in their progress ; and so re- markably are they modified in their course by ex- ternal agents and intrinsic states of action ; and, moreover, so insensibly tlo they pass into one another, and so frequently and variously are tiiey complicated ; that any arrangement must neces- sarily be arbitrary, and a choice of difficulties. Reference, however, to the varying characters of the adventitious formations having been had in the articles upon specific morbid structures, and upon the varying alterations which the principal tissues and organs present, I sliiill here only lake a general view of them, in the following order : — 1st, Secretions adventitious to the frame, and devoid of organisation : 2d, Adventitious secre- tions associated with morbid nutrition ; or those that are apparently organised, but which depend upon the adjoining tissues for their vitality : and, 3d, Those which become organised, and possess an independent life. 130. A, iSecrct'ioiis adcentitious to the frame, and incapable of organisation or vitalily. — These substances present no trace of fibres, laminae, canals, or areola,' ; they are of various degrees of consistency ; and certain of them change either from a fluid to a solid state, or from the latter to the former. They consist chiefly of albumen, gela- tine, and the usual salts found in the serum of the blood. The substances that fall under this de- scription are : — ]. Pus; 2. Tubercle; 3. Fatty matter ; 4. Glue-like matter, or the colloid mat- ter of Laennec ; 5. ^Melanosis, or black matter ; and, 6. Saline ingredients. These may exist either singly, or variously associated. 131. (a) Fus. — -This term has been applied to a morbid secretion, whose physical properties vary considerably. That form of it which is usually secreted in a state of the constitution not remarkably depressed or vitiated, is a homogeneous creain-like fluid, of a yellowish white colour, faint smell, and slightly sweetish taste. But it often departs far from this state ; and even that which is secreted from the same surface, may be very remarkably changed in a very short period, gene- rally'owing to modifications of vital power and vascular action. Sometimes it very closely re- sembles a thick cream ; at others a mixture of curds and whey ; and at others a turbid serum, or a grumous sanies, or the dregs of wine. Occa- sionally it seems disposed to become solid, and to assume the appearance of tubercle. At one time it is quite inodorous, at another very foetid. Its colour also changes from white to yellow, from green to red ; or this order is reversed. In some instances, it is yellowish green, or yellowish brown, and other related shades. The following are its varieties, according to its physical proper- ties : — 1. Creamy, homogeneous, or laudable pus ; 2. Curd-like pus; 3. Serous pus, or sero-puriform matter ; 4. Aluciform pus, or glairy puriform matter, or puriform mucus ; 5. Bloody pus ; and. 589 6. Concrete or lardaceous pus. These alterations are , chiefly attributable to the texture in which it is secreted, to the degree of local irritation or ac- tion, to the period it has been retained, to the general state of vital energy and vascular action, to the condition of the circulating fluid, and to the diatiiesis and constitution of the patient. But these varieties often run into one another, showing that any arrangement of the physical appearances of this secretion must necessarily be arbitrary. In the scrofulous diathesis, however, it often pre- sents certain distinctive characters, and inclines nearer to the curd-like variety, or seems more disposed to become solid, from the absorption of its serous portion, when it has been some time shut up. But the most specific differences that exist in pus are not to be ascertained by chemical re- search, nor external appearances. Two portions of this fluid, identical in every respect, will pro- duce very dissimilar effects : when introduced beneath the cuticle, one will occasion merely a slight irritation ; the other a most dangerous con- stitutional malady, capable of disseminating itself througii thousands. 132. Pus has been found in every tissue, struc- ture, and organ of the body, and in all the vessels, and in the blood itself, both imperfectly mixed, and in the centre of clots. It may exist in the tissues and parenchymatous organs, either col- lected in the form of abscesses, or disseminated and infiltrated through their structure. When formed in muscular, nervous, and even in some other structures, it is in reality furnished by the connecting cellular tissue, which is the chief seat of the inflammatory action producing it. In a great majority of cases, its presence, either in dis- tinct collections, or in a state of infiltration, is ac- companied with signs of irritation or inflammatory action ; but instances occur, in which it is attended by no such appearances. The opinion, that it could be formed only where there is ulceration, has been siiown to be unfounded : for it may be secreted on the surfaces of membranes, without any breach of continuity ; or collected in the parenchyma of the organs, without any appear- ance of inflammation ; or infiltrated between the fibres and in the areolae of the tissues, without any loss of substance. It 'is met with in the second and last of these forms in the consecutive states o( siippuralion, or when puriform or sanious matters have passed into the circulation, from distant parts, or from disease of the veins, &c. When the production of pus has been preceded by any degree of vascular irritat'on, the surrounding tissues present — 1st, various grades of injection ; 2d, various shades of colouration ; 3d, different degrees of softening; 4th, solutions of continuity, which may either have preceded or followed the purulent secretion ; 5tli, the disappearance of the proper structure of the part, and its degeneration into cellular tissue, in the areolai of which the pus is infiltrated. (For the various distinctive cha- racters of pus, the pathologii al states which gene- rate it, the symptoms that precede and accompany its formation, and the means of protecting the frame against its contamination, see the articles Abscess, § 7. etseq.; Inflam.matio.v, and Sup- puration.) 133. (6) Tufcerc/e especially illustrates several of the pathological inferences stated above rela- tive to the constitutional conditions favourinor 590 DISEASE — Adventitious Secretions and Pboductions. the occurrence of many adventitious productions (§ 128.). The history of these formations in the lower animals, and the depressing causes so fre- quently connected with their appearance in the human subject, would lead me to infer — 1st, That the conditions of life throughout the frame, in tubercular disease, are not merely weakened, but also otherwise modified or perverted, either from original conformation, or from acquired diathesis : 2d, That this state of vital manifest- ation often obtains in connection with tubercles, without any symptom during life, or appearance after death, that can warrant the conclusion that they originate in inflammatory action : 3d, That they sometimes form under circumstances that would lead to the inference that inflammatory irritation is an energetic, although not a neces- sary, cause of their appearance : 4th, But that local irritation, or that local or general inflam- matory action, can no more account for their formation, than for the production of any other adventitious secretion, without the concurrence of those conditions of life alluded to above (1st); and that, whilst irritation or vascular action does not necessarily excite tubercles, they may occur without the least evidence of irritation : and, 5th, The general conclusion seems to be that the con- ditions of life modify or pervert the functions of secretion in those parts of the frame in which they are developed, and this perversion is often attended by vascular injection. (As to their SYMPTOMS, NATURE, and TREATMENT, scc the arti- cle Tubercles.) 1.34. (c) Glue-like, or gelatiniform matter, or colloid substance. — Whilst pus and tubercle are chiefly composed of albumen, with varying pro- portions of water and salts, this secretion consists principally of gelatine. It is sometimes colour- less, but it also occasionally presents shades from a yellow to a pale rose tint. It is without any trace of organisation. It is either infiltrated in the areolffi of the tissues, thereby altering very much their appearances ; or it is collected in one or more masses, which slightly condense the sur- rounding structure. When infiltrated into the cellular tissue, it generally indurates this tissue, and constitutes a variety of scirrhus. M. Andrai. states, that whether the induration is a true hyper- trophy of the cellular fibie, or merely the lesult of mechanical condensation, the jelly-like sub- stance is always traversed and divided into com- partments, by numerous white, hard, resisting plates, which seem to secrete it. Sometimes these plates pass into the fibrous or cartilaginous state ; and red vessels have been observed ramifying on their surface, but have never been traced into this peculiar substance. It has also been found in tumours composed either merely of cellular tissue in a state of hypertrophy and induration, or of a variety of morbid products. It is often contained in serous cysts, which appear to have secreted it. When existing in this last form. It constitutes the tumours or cysts called me- licerous, from the semblance of their contents to honey. It may thus be secreted in the dif- ferent tissues in either an infiltrated or an en- cysted form. 13.5. (rt) Fully substinices may be secreted in iliflTereiit parts of the system in two forms : 1st, that which is similar in every respect to the fat of the body ; and, 2d, that which is in some [ respect or other different from it. The first variety has been noticed under the head of transformed secretions ; the second differs in appearance from the natural fat. Cysts of various sizes contain, either alone, or with several other organised substances — as bone, hair, fibrous structure, &c. — a matter resembling suet. These cysts are found in several parts of the body, but most fre- quently in the ovaries. '1 he parenchymatous organs may have their proper tissue atrophied and replaced by a [fatty matter, forming the fatty degeneration of modern authors. 136. (e) Melanoid and other colouring matters have been secreted in almost every part of the body. (For its nature and pathological relations, see the article Melanosis.) The golden yellow tinge, sometimes observed in spots, or generally diffused, in foetal bodies and new-born infants, constituting a variety of what has usually been called jaundice of this class of patients, has been ascribed to a pe- culiar secretion, called c(rro»os/s ( Hippo;, yellow) by Professor Lobstein ; but it is probably nothing more than a modification of the colouring principle of the bile secreted under citcumstances described above (§ 108.). 137. ( /■) The saline substances usually exist- ing in all the fluids of the body are sometimes secreted in uncommon superabundance in various parts. But besides these, others, not generally found in the fluids are secreted ; and are found, 1st, in the reservoirs and excretory ducts, through which the secretions, in which they have been formed, pass out of the system, as in cases of salivary and urinary calculi ; 2d, in the cellular tissue and parenchymatous organs, either alone, or combined with other morbid productions ; and, 3d, replacing other morbid secretions — tubercles being sometimes succeeded by calcareous con- cretions, &c. \38. B. Morbid secretion associated with morbid nutrition, or secretions susceptible of organisation, — This class of productions, in addition to a small proportion of the constituents of unor- ganised secretions, contain a large C[uantity of fibrine. M. Anural supposes that a small por- tion of this substance, either coagulated in the blood-vessels, or extravasated into or upon the tissues, is the original source whence the or- ganised productions are formed ; the fibrinous deposit presenting the appearance of a whitish or reddish mass, of variable consistence, and hav- ing a tendency to become organised, although at first possessing neither organisation nor vitality. But I believe that all fibrinous exudations have a certain degree of derived vitality, disposing them to organisation, particularly when they con- tinue in contact with the part that produced them. M. Andral considers thiit a portion of fibrine may, when coagulated, indicate its vitality without presenting any blood-vessels or any determinate texture ; in which state it may be compared to a zoophyte, which performs a certain grade of vital function, although destitute of a circulating system: and that the fibrinous mass, when imj)regnated with life, becomes the seat of various organic actions ; has a tendency to assume the form of some one of the simple or compound animal textures; performs the functions of secretion ; and exhibits the same morbid phenomena, when irritated, as the natural tissues do under similar circumstances. He fur- DISEASE — Adventitious Secretions and Productions. 591 ther supposes that several tumours, the origin of which has hitherto been mistaken, may be traced to the soUdification of fibrine in the blood-vessels of the part ; and adduces cases, from the minute dissection of which, he infers, that many of the adventitious productions usually called cajicerous, sarcomatous, encephaloid, and nieditlluni, are en- tirely formed in this manner ; the minute vessels — arterial, capillary, and venous — being filled with solid fibrine deprived of its colouring matter. It appears, however, mucli better established, that the latter especially of these productions are formed chiefly of coagulated or altered fibrine, thrown out of tlie blood-vessels owing to their perverted action, and either collected in masses, into which blood-vessels are produced, or infil- trated into the tissue of the part, the vascularity of which is increased along with the alterations that supervene in the adventitious formation and its containing structure. 139. It may be stated of organisable products generally, — 1st, that they seem chiefly to proceed from the secretion or formation, by the morbid state of the vessels, — frequently depending upon a morbid condition of the frame, — of a certain substance very nearly resembling coagulated fibrine deprived of its colouring matter ; 2d, that this substance, from participating to a certain ex- tent in the vitality of the structures in which it is lodged, and from the state of organic action in the parts which formed it, has circulating actions and vessels extended to it, and thereby becomes organised, and capable of performing a certain grade of function ; 3d, that it is at the same time transformed into tissues, either similar to the natural textures, or entirely different from them, but equally organised and endowed with life. I shall next notice in a very general man- ner — ■ 1st, Organisable products arising from sthenic inflammatory action, and not necessarily depending upon a perverted or morbid state of the constitutional powers ; and, 2d, Those adven- titious productions, which not only originate in some constitutional vice, but which also increase both the local lesion and the vitiation of the cir- culating fluids and living solids. 140. 1st. Achentitious structures consequent tipon sthenic uiftamniatortt action. — (o) Organ- isable matter, of a fibrinous or fibro-albuminous nature, is frequently formed on serous surfaces, and is generally termed, in its unorganised state, coagulahle lymph ; and in its organised form,/aZse membranes, cellular adhesions, &c., from its dis- position to assume the appearance of serous and cellular tissues. That these adhesions or pro- ductions may be absorbed, and almost or altoge- ther disappear, if the constitutional energies continue impaired, is established by the observ- ations of M^Nl. RiBES, DurUYTREN, ViLLERME, and Andr.u., as well as by my own experience. And I believe, moreover, that they may become more fully developed, and assume progressive alterations, when the vital powers are reduced or perverted, (As to the manner in which they are formed, and their progressive changes, see the articles Inflammation and ^Membrane.) — (fc) Tlie fibrinous exudation sometimes formed on the internal surface of the blood-vessels, and obstructing them, and ultimately causing their obliteration, is in most respects similar to that produced ou serous surfaces ; the chief difference is in its influence in attracting the fibrine of the blood, and in the consequent results. (See Arteries and Veins.) — (c) A coagulable mat- ter, more albuminous than that formed on the surface of serous membranes, is sometimes se- creted by mucous surfaces. I believe that it is merely a modification of the transformed exhala- tion noticed above (§ 106.), and proceeding from inflammatory action aflecting chiefly the exhaling vessels of the mucous tissue, and transforming the fluid usually given out by these vessels to a fibro-albuminous state; the morbid exhalation concreting in the form of a false membrane upon the inflamed surface, owing to the evaporation or absorption of its watery parts, — Its organisation has been a matter of dispute with French and German pathologists. M. Guersent states that he has seen vessels ramifying in the false mem- branes of croup, and anastomosing with those of the mucous surface. (See Croip, §36.; Inflam- mation, and Membrane.) — (rf) The internal sarface of serous cpsts may become inflamed and form coagulable lymph, and thereby give rise to further results; — 1. merely to false membranes lining their cavities ; 2. to lymph agglutinating their opposite surfaces, and gradually causing the obliteration of their cavities. This latter change often occurs in the cysts formed around coagu- lated blood, particularly when extravasated in the parenchyma of organs. — (e) The adhesion of divided structures takes place in consequence of the eflrision of coagulable lymph, which be- comes organised, and passes from a cellular to a fibrous state, and ultimately becomes identified with the tissues it unites. 141. 2d. Adventitious productions depending, ■upon constitutional vice, as well as upon perverted organic action in their seat, may be divided into two species — the cansecutive and the primary — the former commencing in carcinoma, the latter appearing at once in the true cerebriform or hcemato-cerebriform states. The former is the" connecting link between carcinoma, or hard cancer, and the cerebriform disease. They both have certain points of resemblance, — secretion and nutrition being perverted in both ; adventi- tious productions, and subsequent destruction of the affected tissues taking place in both ; and both being attended by a perversion of the con- ditions of life, and an increasing contamination of the circulating fluids and living sohds. Their chief points of dissimilarity are referrible espe- cially to the manner in which the former ori- ginates. It occurs, like the transformations in which it begins, in certain parts or tissues in preference to others, and only at mature or ad- vanced epochs of life ; commonly commencing locally, and but rarely simultaneously in different parts of the same tissue, or in different structures and organs, however frequently affecting both the one and the other successively. — Tlie latter, or primary, is met with chiefly at the early epochs of life ; it attacks any texture or viscus, either siniultaneously or successively, and at once appears as a soft, tumefied, spongy, pulpy, or cerebriform structure, or in some one of its modi- fications {§ 142.). 142. The consecutive species only sometimes occurs in the advanced course of scirrho-cancer, which usually commences in certain of the states of morbid nutrition and secretion noticed above. DISEASE — Adventitious Secretions and PnoDucTioNs. especially In hypertrophy or condensation of the cellular and allied tissues, with a perverted se- cretion, and deposition of a firm, grey, semi-trans- parent substance in its areolse, and without any specific boundary between it and the healthy structure, in some cases ; or with a more distinct demarcation, and a regular or lobular formation, in others ; or with the secretion of a purely gelatinous substance in minute masses, or in the areola; of the tissue (f 134.) ; or, lastly, with a uniform infiltration of a more albuminous and lighter coloured matter in the texture of the part, i^ivinff rise, respectively, to the diflferent varieties of scirrhous. I3ut these hard, grey, or gelatini- form, or lardaceous alterations, are generally softened, liquefied, ulcerated, or even partially destroyed, and have thereby passed into the car- cinomatous state, before the adventitious produc- tion makes its appearance in any of the forms about to be noticed. Thus, scirrhus passes into carcinoma, or open cancer ; and this latter, in rarer instances, into some one of the varieties which the cerebriform malady presents. 143. The ])i-tmarv species is very varied as to its colour, figure, size, and consistence. Some belonging to it have a homogeneous structure, resembling coagulated fibrine deprived of its colouring matter, and are of diflferent degrees of liardness, occasionally approaching to cartilage, and sometimes being almost semi-fluid, or resem- bling putrified brain. Others of these produc- tions are composed of substances which are variously constituted ; their structure being fila- mentous, or areolar, or cellular, or both cellular and lobular, generally witii numerous canals or cavities containing different kinds of fluids. In all, there is an admixture of solids and fluids in various proportions; the latter being either colourless, resembling serum, or more or less coloured, or altogether fluid blood. This struc- ture may be so arranged, as to constitute either of the varieties of sarcoma, especially the vuim- mari^ and meduUarii of Abhrni-thv ; or it may, owing to its softness, the delicate nature of its vessels, the tendency to ha;morrhagic infiltration, the rapidity of its protrusion through its ulcerated coverings, and to the occasional bleeding from its surface, form the true fungus ha:matodes of several modern writers. When it assumes this last appearance, it is more or less coloured, either in parts, or throughout, from the admix- ture of fluid or coagulated blood, collected into small circumscribed masses, or infiltrated into portions of its tissue. (See H^mato-cerebui- FORM Disease.) 144. It may be remarked generally, respecting all the forms of organic change cliaracterised by the deposit of either an unorgunisable or or- ganisable substance, that the specific matters entering into their composition have been de- tected in the lymphatics, in the glands, and in the veins proceeding from the diseased part. I'us, tubercular matter, melanoid matter, cerebri- form matter, &c. have all been found in tliese situations; the consecutive appearances of the disease in other parts being thereby explained, even alliiough — in respect of certain of these maladies especially — it may also occur in more tiian one part, coetaneously, owing to the dia- thesis, or general condition of vital manifestation ; and previously to the absorption of any portion of the morbid deposition, and to its consequent softening or destruction. 145. C. In respect of those productions iLihich are not only organised, but iiliicli possess an inde- pendent Life, and which constitute the Enlozou, 1 shall add but little to what I have stated else- where. They are found in all animals, either in the cavities, or in the parenchyma of organs : each of them having its special habitation — the fusciola heputica in tile liver, the fliaria in the cellular tissue, the strongylus in the urinary pas- sages, and the ascuris tundiricoides in the intes- tines. 'I'hey may be divided into three orders ; the vesicular, the flat, and the cylindrical. Their organisation varies from a parenchymatous mass, or a cyst containing a limpid fluid, but without appendices, to that provided with one or more appendices, or with an evidently organised head ; from this stale, to a regularly formed structure, consisting of muscular fibres and an alimentary canal ; and, ultimately, thence to a fully de- veloped animal, possessed of sexual organs and the rudiments of nervous and circulating systems. LiNNyEus arranged the entosoa into the intestinal and the visceral. Rudolpiii divided them into fee classes, according to their form. Cuvieu classed them into two orders; the ■parenchymu- teux, or those without any alimentary canal, and the cavitaires, or those possessing a digestive cavity. This last arrangement vvill be followed ; inasmuch as in the article Hydatids will be noticed all those comprised in the parenchyma- teitx of CuviEU, and under Worms those belong- ing to the cavitaires. 146. As to the origin of the entozoa, much difiference of opinion has existed, chiefly among, German, French, and Italian writers. In respect of the first of the classes, viz. hydatids, little doubt can exist ; but in respect of those that lodge in the intestinal canal, the case is otherwise. The subject, however, is sufficiently discussed in the articles referred to. But there is one important fact, which holds good in respect of the gene- ration not only of hydatids and worms, but also of all adventitious productions and depositions ; and which should not be lost sight of in devising means for their prevention and permanent re- moval ; viz., that whatever depresses the mani- festations of life throughout the frame — more especially tliose of healihy secretion and nutri- tion— will both favour their developement, and their increase or extension. Tiiese morbid form- ations may even be produced at will, by whatever lowers the vital energies; — by cold, moisture, unwholesome air and food ; by a watery vege- table, or impoverished diet; by the depressing passions ; by exclusion of light or sunshine, &:c. ; — and not only may they occur singly under these circumstances, but tiiey may also be coni- plicateil with various other maladies, of a consti- tuti(mal or local kind, the nature of which may be thereby so far modified as to require a diflferent treatment from what would be requiied in or- dinary cases. Thus, complications of fever or of visceral inflammations vvith intestinal worms, are often the ultimate efli'ects of long-neglected states of debility, and require less lowering mea- sures than under other or usual circumstances, as well as differently appropriated remedies. Are we to suppose that, whilst the human reconomy is under the influence of the depressing causes DISEASE — Connection- between noticed above, the organic molecules are thereby prevented from being so perfectly assimilated, or so highly animalised, and indeed vitalised, as in health ; and that, tlie vital attraction requisite to due nutrition being weakly or insufficiently ex- erted, they proceed to arrange themselves accord- ing to the grade of vitality they possess, into much interior beings in the scale of creation 1 147. vi. Of Destruction of organised Pahts. — This may take place in three ways : — 1st. By interstitial absorption, by means of which the part is first atrophied, and afterwards altogether re- moved;— 2d. By superficial absorption, or ulcera- tion, which may be consequent on inflammation, or may proceed from the pressure of adjoining parts, and from loss of vital cohesion in circum- scribed portions of membranes or superficial tis- sues:— 3d. By mortificatimi, owing to intense grades of inflammation, either absolutely or rela- tively to the state of local or general vital energy, — to a destruction of the nervous influence of the part, — to interruption of the circulation from dis- ease of the vessels, — to pressure impeding both nervous power and vascular action, — and to generally depressed vital power, associated fre- quently witii a morbid condition of tlie blood, and sometimes with diseased blood-vessels, or with ex- ternal pressure : hence the readiness of the occur- rence of any of the forms of mortification in old age, during dynamic and exanthematous fevers, from erysipelas, from deficient or unwholesome food, and from syphilis or mercurial cachexy ; — and 4th. By the softening and swelling arising from the greatly diminished or lost vital cohesion of cellular and adipose parts, and their infiltration with a serous fluid (comprising tlie Noma, or watery cancer, of authors) giving rise to a form of disorganisation diflerent from the foregoing, that often passes rapidly into a stale of jelly-like solu- tion and gangrenous erosion, particularly in the lips, cheeks, and genitals of children. A similar destruction sometimes also takes place in the sto- mach ; and the true softening of the brain, in its extreme states, seems to be of the same nature. This species of disorganisation is intermediate between ulceration and gangrene. (See Atro- phy, Cellular Tissue, Gangrene, Softening, and Ulceration.) 148. V. Connection of Morbid Actions and of Organic Lesions with States of the Blood. — Depressed and perverted states of vital power have heen siiown to be often connected with a deficiency, or vitiated state of the circulat- ing fluid, in ciironic and cachectic diseases, and with excrementitious plethora, or the accumula- tion of the constituents of the various secretions in the blood in the early and advanced stages of fevers. (See Blood, and Debilitv.) Primary excitement, in either its local or general forms, is often caused, or at least favoured, by vascular plethora ; and reaction, or secondary excitement, with local determinations or inflammatory action, is frequently produced by this condition, existing either absolutely or relatively, or associated with the accumulation in the blood of the constituents of the secretions and excretions, owing to the interruption of these functions, as in the stage of reaction in fevers (§ 85.). 149. The connection of the lesions of secretion witii the states of the circulation is one of the most important topics in pathology, and has Vol. I. Alterations of Fluids and Solids. 593 therefore been noticed in this ( § 95. et seq.) and other articles. The superabundance and trans- formations of one or two of the natural secretions are sometimes owing to the alteration, interrup- tion, or suppression of others, — to the derange- ment of the balance of healthy action, and to the consequent plethora or vitiation of the circulating mass. Thus, morbid states of the cutaneous or of the intestinal secretions are often caused by inactive function of the kidneys or liver; and alterations of the urine, or of the bile, are fre- quently produced by suppression of the perspir- ation, or of the secretions from mucous surfaces. iMorbid increase of the exhalations, particularly those poured into serous cavities, or into the areola; of cellular parts, is, in many instances, connected with general plethora, as well as with local congestions, and deficient excretion ; whilst the transition of congestions into inflammations, and the transformation of these exhalations into a fibrinous, or filjro-albumiuous substance, by sthenic inflammatory action, are promoted by the abundance of this constituent in the blood, and the general exuberance of this fluid. When the recrementitious secretions are imperfectly elabo- rated owing to depressed vital power, the func- tions of chylifaction, sanguifaction, nutrition, and depuration are also impeded ; the usual results being insufficient excretion, an impure state of the blood, and ultimately slow irritative fever, marasmus, anaemia, and other chronic diseases. In such cases the morbid phenomena proceed in a circle, or rather act and react upon each other, either until vascular excitement is produced by the state of the circulating fluid, and the secreting and excreting functions are thereby restored, as shown in the article Crisis (§ 15.), or until some organic changes supervenes. If we attempt to trace the procession of morbid actions, we shall often find that depre.-sed vital power affects the secretions subservient to sanguifaction ; these modify the quality, and ultimately the quantity of the blood; the altered condition of this fluid disorders the vascular actions and depurating func- tions, whilst it further ileranges the nutritious secretions; and thus the evil continues to increase until the living solids become changed, and in- capable of performing their prescribed actions. 150. In connection with the various le.uons of nutrition whicli have been brought into view, the blood can seldom long retain its healthy state. But the change is evidently, in the first instance, that of quality rather than of quantity, although it is very difficult to show in what respect the quality is modified. Excessive excretion and discharge will often, however, sensibly diminish the quantity of this fluid before any other change either in it or in the functions of nutrition becomes apparent. Local alterations of secretion and nu- trition conjoined, whether originating in the organic nervous influence of the part, or in the quality of the blood circulating through it, ulti- mately change both the one and the other, and generally in a way that cannot be mistaken. In many instances the alteration of the blood is evi- dently owing to the absorption of the molecules which had been deposited, secreted, or combined in the morbid structure, and removed in the usual course of that transition of the solids into fluids, which obtains in the living economy, equally with the transition of fluids into solids. Animal Qq 594 DISEASE — Procession organisation is the complement of a process of combination and decomposition, — of attraction from, and dissolution into, the blood, of the con- stituents of the various tissues composing it ; and if, in the former part of the process, the elements form heterogeneous productions, the dissolution of these productions, and commixture of their mole- cules in the blood, must necessarily vitiate both it and the structures through which it circu- lates. Accordingly we find, even in fevers, that the rapid absorption of a large portion of the molecules of the similar or primitive tissues alters the circulating fluid often in a very evident man- ner; diminishes the density, cohesion, and bulk of many of the soft solids; and changes, at the same time, the colour, and other sensible proper- ties, of both fluids and solids, to a remarkable extent. But as this resolution of a portion of the constituents of the textures into the fluid state, in fevers, generally takes place without any pre- existing adventitious formation or malignant pro- duction, the absorbed materials admit of removal by the emunctories without permanently contam- inating the frame, or being deposited in various tissues or organs, and thereby increasing and ex- tending the mischief. 151. In case of chronic alterations of secretion and 7iiitrition, giving rise to various adventitious productions, whether local, constitutional, or malignant, the dissolution of the molecules that must necessarily take place (conformably with the law of organisation stated above (§ 150.), if they be organised ; and owing to the irritation of the surrounding tissues, and consequent secre- tion of a fluid matter which dissolves them, and prepares them for absorption, if they be concrete and unorganised,) and the passage of these mole- cules into the blood, will first vitiate it, and next diminish its quantity ; at the same time that such of the molecules as are not quickly discharged by the emunctories from the circulation, will be deposited in other parts of the frame, forming consecutive productions of a similar nature. The consequences, therefore, of various local alter- etions of secretion and nutrition — as of pus, tubercle, carcinoma, &c. — will be, — 1st, As respects the absorhetit system — (a) the presence of a portion of the molecules of these productions in the absorbents proceeding from the parts in which they are formed; (b) irritation of these vessels, excited by the morbid molecules, espe- cially where they ramify and reunite in the glands ; (c) the accumulation of the moibid mat- ter in the absorbents, or its deposition in the glands themselves : 2d, As regards the blood and vascular system — (a) the passage of the morbid molecules into this fluid, either directly by the veins, or more circuitously by the absorbents, or by both chan- nels; (fe) the contamination of this fluid ; (c) con- sequent irritation or inflammation of the blood- vessels ; (ti) an imperfectly assimilated or deficient quantity of blood, owing to disorder of the recre- mentitious secretions, and of the functions of chy- lil'action and sanguifaction : and, 3d, As respects the soft solids — (a) the deposition of the moibid molecules in the areola; of the cellular tissue, or the infiltration of tlieni into parenchymatous organs; (6) their secretion on the surface of serous mem- branes, or shut cavities, as those of the joints or bursa; ; (c) their excretion on the mucous and cutaneous surfaces, with inflammation, softening, OF MoHBTD Phenomena. ulceration, &c. of these surfaces, or of their folli- cles; (d) their excretion by glandular organs, either with or without inflammation and disor- ganisation of those organs. 152. VI. Of THE PiiocESsioN OF Morbid Phe- nomena.— i. The Stages of Diseases have been variously divided by pathologists. Some writers admit only three periods, viz. the increase, the acm6, and the decline ; whilst others enumerate five, six, or even seven. Tiie three stages now mentioned are sufficient to distinguish the principal changes of disease generally ; but in respect of febrile diseases*, they may be subdivided with advantage. A. T\\Q first or incremental stage consists of — (a) the precursory period, or the time that elapses from the impression of the exciting cause until the dis- ease forms, or manifests itself in an evident man- ner. The characteristics ofthis period are generally languor, a diminution of the usual physical and mental energy, a weak or slow pulse, or irregular accelerations of pulse, slight chills, alternating with flushings, or heat of skin ; change in the coun- tenance ; and weakened power of the digestive, secreting, and excreting functions. In many in- stances little or no complaint is made; or, at most only a slight malaise, or indefinite feeling of indisposition indicative of depression of the vital energies. This period is of very variable duration — from a few hours to two or three weeks — and is the same with the "stadium op- portunitalis" of Hildenbrand, the " latent period" of Dr. Marsh, and the period of " incubation" of the French pathologists. — (ft) The formative period, or that of manifest invasion, comprises the time from which the commencement of the dis- ease is usually reckoned, and critical evacuations expected. It is frequently attended by convul- sions in young children ; by syncope in females ; and by chills, rigors, sickness, or vomiting, pain, &c., in all classes of patients. These symptoms are generally accompanied by others, having a more especial reference to the nature of the disease which they usher in : as by aching pains in the head, loins, and limbs, in fevers ; by acute pain, and difficulty of breathing, in pleuritis ; by vomiting, constipation, and pains about the umbilicus, in enteritis, &c. ; and seldom continue longer than some hours. — (c) The pe- riod of developed excitement or of reaction, or — if this pathological condition is not prominent — of aggravation of the chief symptoms : in which the pulse becomes quicker, fuller, and harder than in the former periods ; the functions of digestion, assimilation, secretion, and excretion more or less impeded ; the animal temperature and thirst commonly increased ; and the tongue coated, &c. This period may continue only a few hours; or be prolonged to as many days, or even weeks, in sub-acute or local diseases. The whole duration of this stage is extremely various ; but is usually much shorter in febrile than in local and organic diseases. — B. The second stage, or the acme, consists — (a) of the period of stationary reaction, in which the symptoms, having reached their height, remain in this state * This division of the periods of fevers, and an abstract of my opinions of their pathology, tal^en from my Lec- tures delivered from IH'24 to lN'2!), whs published in the jMndon MMiftil Hcposilury for Se))t. 1H'J7, I). 238. I state this, as similar views have beeu promulgated by others subsequently to this last date. DISEASE — Type or Form of. 595 for an indefinite time — varying from a few hours to several days, weeks, or, in local maladies, even to some months — presenting slight modifications and vacillations, tending either to a favourable or unfavourable termination. — (6) Of the period of crisis, in which new phenomena appear, indi- cating either a salutary or fatal issue. The whole duration of this stage is, in febrile diseases, gene- rally shorter than tbat of the first ; but there are numerous exceptions to this rule. — C. The third stage, or that of decline, consists — (a) of the period of decrement, or exhaustion in which the symptoms subside more or less rapidly, and the vital organs begin to resume their functions, in favourable cases ; or the energies of life to sink, in those of an opposite tendency. — {b) Of the period of convalescence, in which the remaining traces and consequences of the malady disappear, and the vital and animal functions regain their healthy condition and balance. 153. There may be some doubts of the pro- priety of adopting certain of the above sub- divisions, as they are chiefly applicable to febrile diseases ; but they likewise obtain in some other maladies. In those in which they are less re- markable — namely, in organic diseases — any division into stages can seldom be adopted with advantage, or be made otherwise than in an ar- bitrary manner. In these maladies, and, indeed, in some others, the second or formative period of the first stage may not be manifest ; nor the second, or critical period of the second stage ; and many may question the propriety of ma.k\ng convalescence a period of the disease. But I believe, that, during the restoration of the various functions, there still remain certain pathological states or degrees of disorder, requiring the attention of the practitioner ; and, in many instances, a marked tendency to relapse upon exposure to the exciting causes of the malady. For pathological reasons, therefore, as well as on account of the future health of the patient, convalescence should be always treated as a period of disease. 154. ii. Grades of Action. — The terms active and passive have been much employed in pa- thology, and often without regard to precision. They should have reference only to the kind of vital action characterising disease, and not to its duration ; with which, however, they have been too frequently confounded. Thus the term active has been often employed synonymously witli acute, and passive with chronic. But, altliough an active disease is generally acute, it is not so always or necessarily, and may even be of a chronic duration ; whilst the most pas- sive maladies, as respects the grade of vital action, may be most acute with reference to their continuance. It should never be overlooked, in our appreciation of pathological conditions, that medical terms are only conventional or ar- bitrary signs, employed, often too indefinitely, to convey our ideas of certain ever-varying con- ditions of vital manifestation and organic change ; and that, in using the words active and passive, we should restrict them entirely to the expression of grades of vital action, and view them as pos- sessing an arbitrary as well as a relative import, inasmuch as there is every intermediate degree between the most active and the most passive states of disease. 155. iii. Of the Type or Form of Disease, — The type is the order of succession observed to obtain among certain morbid phenomena ; and admits of modification from various causes, with- out the intrinsic nature of the phenomena being essentially aftected. It has commonly been divided into the periodic and the continued ; the former being subdivided into several specific forms. — A. Of the periodic type, a7jd the periodi- city of morbid actions. — The intermissions or re- missions of morbid phenomena, and their return or exacerbations after regular or nearly regular periods, constitute their periodicity ; and are characteristic features of a number of diseases. These features, are, however, more or less modi- fied and marked in certain maladies than in others, in respect botli to the paroxysms or accessions of morbid action, and to the intervals which separate them ; and hence periodic maladies admit of various modes of arrangement, of which, however, that into the febrile and non-febrile (pyrexial and apy- re.rial) seems to be the preferable. The former are characterised by the regular stages of febrile action which the paroxysm presents in most in- stances, and the definite duration of the intervals or remissions : the latter are remarkable for the suddenness of attack, and their evident dependence upon, and affection of, the nervous system ; as well as for the less regularity of their intervals. Of the various modifications, which these two classes of disease present, sufHcient notice has been taken in the articles on Fevers, and on the nervous disorders which possess this feature, especially Asthma, Epilepsy, Hysteria, and Neuralgic Affections. 156. The cause of the periodicity of many diseases has never been satisfactorily assigned. Some have imputed it to the daily alternation of the erect and supine postures ; others to the action of light, or, in other words; to solar influence. There is a certain tendency to periodicity in almost all diseases, in which the nervous functions are more or less aflfected, and even in convalescence: the remissions being often scarcely perceptible, and the exacerbations generally assuming the tertian type. The periodicity of morbid actions cannot be explained otherwise than by referring it to a law of the animal economy ; and, as those maladies, in which the nervous systems are pri- marily and chiefly affected, are most remarkably periodic, we may infer that it is especially de- pendent on these systems. This law obtains to a certain extent in health, as respects the perform- ance of many of the vital functions ; its existence in disease, in a more evident or modified form, should not therefore be a matter of surprise, par- ticularly when the functions of those systems on which it is more immediately dependent- are principally affected. It is most distinct^ and the intervals most complete, in maladies consisting especially of disturbance of the organic and ce- rebro-spinal functions, and in those in which the excretions are not much impeded, and the blood consequently not materially altered from the healthy state, or where the other causes to which the continued type is attributed (§ 157.) do not exist. 157. B. T/ie co)((i»M(erf fi/pe consists of an unin- terrupted succession of the morbid phenomena, from the irruption of the disease to its termination. Some maladies present a nearly regular intensity during their course, and have therefore been called Qci 2 596 DISEASE — DaRATioN of Morbid Actions — 'Terminations. by the older writers " murhicontineiites." Others evince slight morning remissions, with exacerba- tions in the afternoon or towards evening : others, in addition to these, experience some degree of exasperation on certain, most frequently on alter- nate, days ; and others, as some kinds of fever, as- sume at first a remittent form, but soon become con- tinued, and at last again slightly remittent during convalescence. Even the more strictly continued febrile diseases evince a remitting or periodic type, in some degree, during decline or early conva- lescence. It would seem that a marked tendency to periodicity exists in all diseases, and that the continued type is imposed — (a) by a high degree of inflammatory action ; (h) by impeded or inter- rupted secretion and excretion, and consequent alteration of the quality and quantity of the circu- lating fluid. Thence it may be inferred, tiiat the type will be the more evidently continued, the greater the pathological states to v.'hich I liave chiefly imputed it ; and that, as in respect of other medical terms, continued or periodic are usually employed in an arbitrary manner, — the one type passing into the other, the regularly periodic and the continued forming the extremes of the scale, between which there is every grade, ascending from the former, or regularly intermittent, through the less perfect and the remittent, until the con- tinued is reached. 158. iv. Of the Duration of Morbid Actions, — The period intervening between the actual irrup- tion and the termination of disease is of very various length. Hasmorrhnges sometimes continue only a few minutes, cholera a few hours, whilst asthma, rheumatism, and gout, may remain the greater part of life. Some maladies, originating in infection, have a specific duration, as small- pox, measles, typhus, ice. If we calculate from tiie time when the exciting cause made its im- pression, many diseases, whose length often appears definite, will present a much less uniform character. Thus, in plague and other pestilen- tial maladies, the effluvium from the sick has sensibly affected the healthy, and terminated ex- istence in a few hours from its impression, wliiist other persons have not been seized by the fully formed malady until many days after exposure to its cause. Marsh miasmata have, in some instances, not produced ague until several weeks after their impression was made on the frame ; and the rabid virus has sometimes not occasioned its dreadful eflects until many months after its inocu- lation. If we comprise the time that elapses from the first manifestation of functional disorder, to its termination from fatal organic lesion, the dur- ation of numerous diseases will not infrequently form no mean portion of the usually allotted period of existence. Some maladies of a slight and febrile kind, depending upon disturbance of the stomach or bowels, occasionally subside in a few hours, or in a day or two, and from this circumstance have been called ephemeral. l.'JO. A. The terms acute and chronic arc very arbitrarily employed to designate the duration of morbid actions ; and, owing to the circumstances of their being often used as general but loose characterislics of disease, they have been mis- taken by the inexperienced as indicating the existence of two forms, between which there is none intermediate. 'l"o this misconception me- dical writings have contributed, chiefly by de- scribing merely these two conditions as simple and unvarying forms, instead of considering them as arbitrary signs employed to indicate the more extreme states, in respect of duration, between which there may exist every intermediate degree. IMany employ these terms, to express not only the duration of morbid action, but also its grade or intensity. Of this little need be complained, if the meaning attached to the words be pre- viously assigned. Numerous writers, impressed with the vague manner in which these appella- tions have been used, have endeavoured to give them a greater degree of precision by adjoining qualifying epithets to them. — -(a) Diseases have been generally viewed as acute, when the)' are not prolonged beyond forty days ; some writers subdividing those thus characterised, into the " most acute," when they terminate in three or four days, — into the " veni acute," "when they do not continue longer than seven days, — into the " si/nply acute," when they endure for fourteen days, — and into the "sub-acute," when they reach forty days. — (/;) Rlaladies which are pro- longed beyond the last term have been usually designated chronic; but they hardly admit of a similar subdivision to the above, their duration being indefinitely prolonged. The subdivision of them into functional and organic, if the dis- tinction could be made during life, would be of practical importance ; but, although it might be made in diseases of some organs, it cannot so readilj' in respect of others : besides, most chronic ailments are first functional, and so gradually and imperceptibly run into organic change, that no line of demarcation can be drawn between the two states. 160. VII. Of the Tehminations of Disease. — Morbid actions end ultimately in two ways : 1st, In health ; 2d, Deatii. But before terminating in either, they may assume other forms, or alto- gether distinct characters; giving rise to what may be called the succession, the transition or conversion, and the metastasis of disease. — A, The return to health consists in the restoration of all the functions. It takes place in ways pecu- liar to the nature of the malady, and conse- quently in very diversified modes. — (a) In local diseases, and in those simple pathological states consisting of debility, excitement, exhaustion, &:c., the terminations in health are the most direct. Nervous affections and haemorrhages commonly end by the mere cessation of the phenomena of which they consist ; and a similar occurrence obtains in respect of simple congestions and various functional complaints, as jaundice, dis- orders of the stomach and bowels, &c. In the restoration, however, of inflammations to the healthj' state, the changes are more numerous, the various phenomena of which this lesion is composed either disappearing in succession and gradually, that is, in resolution ; or giving rise to other alterations of a more or less serious or dis- organising kind; and these to new secretions and states of nutrition, as purulent collections, ulcer- ation, sphacelation, and ultimately to the pro- ductions of coagulable lymph, granulations, and cicatrisation. — (b) In j'ehrile and constitutional maladies, the return to health is generally the result of a series of changes in tiie economy, however rapidly it may take place ; and is usu- ally characterised, Jirst, by the subsidence or DISEASE — ITS Relatioks, S exhaustion of the morbid state constituting the chief pathological condition, and, second, Ijy the restoration of the secreting and excreting func- tions, the interruption of which constituted one of the chief features of disease. (See Crisis.) — ((•) In organic lesions, the restoration of the health is less frequently efl'ected, either by nature or by art, than in the preceding classes of disease, and is usually the result of modifications of the secretions and nutrition of the part different from those in which the organic alterations originated. Consequently the return to the natural structure is generally slowly, and often only partially, ac- coniplislied, — is always aided by a due mani- festation of the vital energies and performance of the secreting and excreting functions, — and is frequently favoured by irritation of, and deriva- tion to, some remote tissue or viscus, occurring spontaneously, or excited by art. 101. In all diseases, the restoration to health is as much owing to the vital energy, as to subsidence of the particular morbid actions wliich constitute them. Thus, acute or sub-acute inflammations occasion various changes of structure ; yet the mere disap- pearance of the inflammation does not constitute the return to health. The organic lesions still continue ; but these are ultimately removed in the course of that constant process of attraction from, and dissolution into, the blood, of the special molecules of the tissues. Secretion and nutrition have been shown to be not the mere deposition of organic particles, but a constant circulation of tiiese particles from the blood into vaiious fluid and solid forms, and back again into the blood, after having retained these forms for a longer or shorter period ; and, as the organic molecules are identified with the various structures, in virtue of the vital influence and attraction which actuate these structures, it follows that the more this in- fluence is exerted, the more will nutrition be per- fected, and any aberration from the healthy form avoided and restored. C!onsequently, in the course of this process, the natural type of formation will be preserved, and any morbid production be removed. — (n) Va"ious phenomena (^critical cluuiges) of a very marked character indicate the terminalion of acute diseases in health ; and have received, from their importance, the attention of physicians. (See Crisis.) — (b) As the functions become re-established, and the pathognomonic symptoms subside, and at last disappear, so the decline of dis- ease passes into convalescence, in which, at first, more or less of the phenomena constituting the disorder, and of debility, not merely of the organ chiefly affected, but also of the rest of the frame, still remain ; the functional or the organic lesion gradually disappearing as the manifestations of life throughout the system become more and more developed, orattain their healthy state and balance. (See DiBir.iTV, § 43.) 162. B, The termination in death takes place in vaiious ways, l;oth in acute and chronic diseases. It may occur in thu former more or less suddenly — (n) from rapid sinking of the vital powers, as in adynamic fevers ; (/;) or from fatal haimorrhage be- fore exhaustion has reached its utmost, as in some diseases of the lungs and digestive canal ; (c) or from pressure on, or interrupted circulation through, the brain, accompanied with convulsions, or coma, or with both, as in various diseases of this organ; (rf) or from profound or prolonged UCCESSIONS, AND COMPLICATIONS. 597 syncope and sudden cessation of the heart's ac- tion, as upon (juickly assuming or retaining the erect posture in states of exhaustion ; (e) or lastly, froxnasphijxy, as pointed out in that article. Death may also occur much more slowly in acute mala- dies, owing to the gradual sinking and abolition of the vital manifestations; giving rise to the collapsed countenance, the frequent, weak, and unequal pulse and respiration ; the loss of animal heat, and cold clammy perspirations, the resolution of the sphincters, and insensibility, t!ie cadaverous smell, &c. observed some hours previously to, and usher- ing in, dissolution. In some chronic maladies, death often occurs suddenly, as inorganic diseases of the heart, large blood-vessels and lungs, owing to cfliision into the pericardium, interruption of the heart's contractions, to rupture of its cavities or valves, to bursting of aneurisms or profuse hajmorrhages, to suffocation from effusion into the bronchi, or into the pleural cavities, &;c. More frequently, however, death takes place slowly in this class of maladies ; and is chiefly owing to the exhaustion of the vital energies, or to the disorgan- isation of some important part, and the interruption of a vital function, disordering and ultimately obstructing others ; as when fluid is slowly effused in any of the large cavities. 163. Vlll. Of THE IIelations, Successions, AND Complications of Disease. — A. The rela- tions of disease are not easily explained in many instances; in others, however, they are more ob- vious. It cannot be shown wherefore a state of erethism, or inflammatory irritation of the diges- tive mucous surface, should frequently co-exist with acute or chronic eruptions on the skin otherwise than by supposing that the state of the circulating fluid is such as to excite or irritate the vascular reticulations of both the skin and villous membrane ; and, although this fluid may be in excessive quantity in the majority of such cases, yet quantity merely will not account for the phenomena, without calling into aid an alteration of quality ; which, while it excites the digestive mucous surface, also inflames the cutaneous ves- sels, during the depurating process they exert upon the blood. But the state of this fluid will not explain all the relations of .complicated mor- bid actions. The reciprocative influence of the organic nervous and cerebro-spinal systems, and of the former and the vascular systems, must be considered as the earliest and chief sources of inorbid associations. When the dependence of vascular action, and of the secreting and excreting functions on the organic nerves, — of the conditions of the circulating fluid on the states of these fiinclions,- — and of the cerebro-spinal manifest- ations on both the organic nervous and vascular systems — on the strictly orjianic actions, — is duly considered, the relation and succession of several morbid conditions will appear as necessary re- sults of this union. A\'lien we perceive the pro- cesses of digestion, secretion, and defecation imper- fectly performed — processes essentially dependent upon the organic nervous influence — should we be surprised to observe further disorders super- vene ; and are we not rather to expect morbid phenomena to present themselves, referrible to the vascular system, to the circulating fluid, to the nutritive functions, and to the purely animal manifestations'! When important elimi- nating processes are either impeded or increased Qq 3 598 DISEASE — ITS Relations, Successions, and Complications. to such a degree as to constitute disorder, ought not other states of disease to be looked for t When the urinary secretion is interrupted, excrementi- tious vascular plethora, followed by a morbid increase of the exhalations, dropsy, congestion or effusion on the brain, convulsions, coma, &c. will necessarily follow. When this excretion is morbidly increased, the other secretions will be diminished, and assimilation and nutrition im- peded. AVhen the menstrual discharge is de- layed or suppressed from torpor of the generative organs, an important depurating function is not performed, the co-existent debility of all the or- ganic actions is thereby increased, the cerebro- spinal functions are weakened ; ultimately assi- milation and nutrition are reduced to the lowest grade, and anaemia and marasmus supervene. But when this discharge is copious and frequent, owing to increased action or excitement of these organs, the blood is purged of its impurities, all the organic functions assume a proportionate activity, and the cerebro-spinal system evinces augmented susceptibility and excitability : sangui- faction and frequently nutrition proceed rapidly ; and vascular plethora, with a tendency to local determinations, to inflammations, to hysteria, to convulsions, 6\:c., is the consequence, particularly upon any interruption of the discharge. 164. -B. Also, when morbidly increased secre- tions have become habitual, other and more im- portantdiseases may succeed any interruption liiey experience. An habitual diarrhoea, when sup- pressed, may be followed by peritonitis or as- cites ; an old bronchorrhcEa, or chronic bronchitis, may, when arrested, be succeeded by hydrotho- rax ; leucorrhcea, or menorrhagia, if injudiciously treated, may pass into inflammation of the womb, or of the peritoneum, and even into ascites. In these the succession of morbid actions admit of ready explanations; for these morbid secretionsor discharges being generally the result of local de- termination and plethora, their interruption or suppression merely changes their direction from a surface, whence they were evacuated, and where they, consequently, were comparatively innocuous, either to the substance or to the sur- face of the organ or part aftected, where their retention and accumulation occasion dangerous or fatal eflfects. 1G5. C. Whilst the mutual dependence — the reciprocative influence — of the different systems and functions of the frame, explains the relations and successions of diseases, it also accounts for their complications, and for the comparative in- frequency in practice of those simple or specific forms or states of morbid action described by nosologists. Indeed, when we reflect on the in- timate manner in which the various parts of our frame are anatomically related and functionally dependent, we should rather be surprised to find disease so simple as it often is, and be prepared to observe not only associated lesions of structure and disorders of functions, but also the one va- riously complicated with the other. There are numerous circumstances which favour the com- plication of disease. Amongst these the follow- ing are the most important: — 1st, Constitution anil diathesis, — as the scrofulous, the rheumatic, the gouty, the plethoric, and the debilitated ; — 2d, The nature of the predisposing and exciting causes, viz. those v^hich act upon the organis- ation generally, as impure air, unwholesome food, &c. ; — 3d. The state of the secretions and excre- tions, particularly the vitiation or interruption of them ; — 4th, Vascular plethora, anaemia, and a morbid state of the blood; — 5th. The disposition of membranous or continuous parts to experience an extension of morbid action, particularly when vital resistance is weak, and the excretions un- natural or interrupted ; — 6th. The influence of irritation of a part upon remote organs, through the medium of either the organic or cerebro-spinal nervous systems; — and, 7th. Injudicious treat- ment. It would be inconsistent with my limits, were it possible, even to enumerate the compli- cations which result from these and other causes ; but there are certain illustrations required to show the truly practical importance of this branch of pathology. 166. (a) Tubercular productions in the vis- cera, or in the membranes, often co-exist with disease of the absorbent vessels and glands. Rheumatism and gout not merely modify the character of other diseases, but may seize on a number of parts successively, and even on several simultaneously, whilst they are very often asso- ciated with a torpid state of the liver and bowels, and disorder of the stomach and urinary organs. A plethoric state of the vascular system, whether absolute or relative, associates congestions of in- ternal viscera with various disorders of secretion and excretion ; with affections of the nervous system, and of the female generative organs, and sometimes with eruptions on the skin. Debility disposes to the extension of inflainmatory action to continuous or contiguous parts, and associates disorders of the digestive and assimilating viscera with those of the nervous system and sexual or- gans ; and thus examplesof the succession andcom- plication of disease from diathesis and constitution (§ 165, 1st.) are constantly appearing in practice, 167. (6) Extremes of temperature, and hu- midity, and impure air, often seriously affect more than one organ. A warm and impure air frequently produces, either successively or simul- taneously, not only functional but also struc- tural disease of the liver, spleen, and bowels, as well as fevers in which these viscera and the stomach are principally affected. Unwholesome food contaminates the chyle, the circulating and secreted fluids, and ultimately occasions co- existent disease of several viscera, — the complica- tion of causation (§ 165, 2d.). 168. (c) A vitiated, copious, or interrupted state of one or more secretions not only affects tiie organs which produce them, and the viscera to whose functions they are either directly or indi- rectly subservient, but also vicariously influences other secretions, and changes their quantity or (juality. A copious flow of acrid bile may com- plicate disease of the liver with inflammation of the mucous surface of both the stomach and the intestines, particularly of the latter; and func- tional disorders, or inflammations, or structural change of the kidneys, may so alter the conditions of the urine and blood as to associate with them either renal and vesical calculi, or inflammation and structural disease of the urinary bladder, or dropsy of one or more of the siiut cavities, and of the cellular tissue. Also, interrupted discharge of the secretions, particularly of those that are excrementitious, from disease of their outlets, not DISEASE — Metastasis of. infrequently occasions consecutive changes in the organs which elaborate or retain them. Ob- structions to the due evacuations of the urine, from obstacles existing either in the uretiira or about the neck of the bladder, or in the ureters, superinduce alterations of the kidneys, or of the bladder itself; and disease of the biliary ducts commonly associates with it lesions of botii the gall-bladder and liver, and of the digestive canal ; furnishing examples of siiperiiiduced complica- tions (§ 165, 3d.). 169. (f/) Changes in the quantity and quality of the circulating fluid, especially when carried far from the healthy state, although usually the consequences of disorder of one or more of the secreting and assimilating viscera, yet become the cause* of co-existent disease of several organs and structures, modifying their interstitial secre- tions, their nutrition, and their vital cohesion and manifestations ; the whole organisation generally presenting more or less of change. These com- plicated effects may assume varied forms, and implicate particular organs in a more remarkable manner than the others, according as either ple- thora or anajmia may be associated with the accu- mulation of excrementitious matters in the blood, or as the quantity and nature of these matters may vary — thereby causing diversified humoral complications (§ 165, 4th.). 170. (e) — a. \Vhen we advert to the circumstance of disease, essentially the same having different symptoms, and producing varied effects, merely in consequence of a slight difference in its seat, one reason for the frequency of what should be called rather the extension or succession of disease, than its complication, will be apparent. Thus, when inflammation of the fauces extends down the trachea and bronchi, there may be either a suc- cession of disease, if the inflammation disappears from the former seat as it extends to the latter ; or a complication, if it exist at the same time in all ; and yet the nature of the morbid action is essentially the same, as long as the vital energies remain unaltered. When inflammation extends along the digestive mucous surface, or to distinct parts of it only, a similar succession or compli- cation, but without difference of the nature of the disease, also obtains. These are instances of the succession or complication of continuity. — S. But disease may extend from one tissue to another, instead of being thus limited to the same, as in the above instances ; — it may originate in a mem- branous surface, and involve the substance or parenchyma of an organ, and ultimately even its opposite and differently organised surface, and either disappear from the former upon affecting the latter, or implicate them all simultaneously, thereby giving rise to a succession or compli- cation of morbid actions, without altering their characters, although materially changing their symptoms. Thus, bronchitis may pass into pneu- monia, and this latter into pleuritis, or they may all co-exist ; and inflammation of a part of the digestive mucous surface may be extended to the cellular tissue connecting the coats of the aliment- ary tube, and thence to the peritoneum ; and so on in respect of other organs, which, equally with these, not infrequently furnish examples of the suc- cession OTComplication of contiguity (§ 165, 5th). 171. (f) Irritation and other disorders of an organ or part not infrequently associate with them 509 a morbid condition of remote as well as adjoining parts. AVorms in the intestinal canal often induce either febrile or convulsive afl'ections. Congestion inflammatory irritation, erethism, or merely func- tional excitement of the female organs, may occa- sion epilepsy, irregular or anomalous forms of convulsions, hysteria, altered sensibility of the nerves — referred by some writers to irritation of the spinal chord — vitiated appetite, and disordered manifestations of mind. Injury of a tendon or nerve may produce tetanus ; and the accumu- lation of fajcal matters in the large bowels may excite, and be complicated with, various disorders of the stomach, inflammation and ulceration of the fauces and pharynx, febrile disturbance, hemorrhoids, numerous nervous ailments, and disorders of the uterus. These may be termed the sympathetic associjttions or complications of disease. 171. (g) That injudicious treatment often com- plicates disease, may not be so readily admitted as the circumstances now adverted to. But I can state, as the result of observation, that lowering measures carried too far will occasionally favour the extension of disordered action and structural change, either by continuity or contiguity (^ 170.), or by promoting the function of absorption, and the passage of morbid matters into the blood (§ 169.) ; and that stimulating remedies used too freely will, either by their operation on secreting organs and surfaces, or by irritating the parts to which they are applied, sometimes superinduce inflammatory action in addition to the disease which they were intended to remove. Thus, arsenic exhibited too freely, in order to cure agues, has produced in- flammation of the internal surface of the heart and arteries ; and bark of quinine, given freely before morbid secretions and faecal matters have been carried off by purgatives, has superinduced hepa- titis or dysentery, or both, upon the intermittent disease for which it was prescribed. Stimulants and tonics taken in some forms of dyspepsia, as complicated functional or structural disease of the stomach, liver, and bowels; and astringents im- prudently employed, have excited inflammation in the organ whence the discharge, for which they were exhibited, proceeded, as well as disease in some related organ. 172. IX. Of the Metastasis of Disease. — Metastasis {fj.sTaa-raa-i;, a change, migration, from /UE9ijTi/W(, I change, or transfer) of disease has been often improperly confounded with the terms Metaptosis, Epigencsis, Diadoxis, and Metaschema- tismus, which have had different meaninos at- tached to them. Metaptosis has usually been used to mean a change in the nature or state of a disease, without a change in its seat ; — Epiout 30, sanguine and ])lethoric, had rheumatism of the lower ex- tremities, which she attcuiptcd to remove by a quack embrocation. 'J'hc disorder disappeared from the extremities, but she was instantly seized by most acute pains and tenderness in the re- gion of the uterus and ovaria, the latter being greatly enlarged, so as to form small tumours. Similar cases to the above have been observed by me, and show that rheumatic and gouty diseases, when suppressed in one part, or suddenly subdued by lowering remedies or evacuations, will often be manifested in some vital organ, and be removed from it, in such a way as can be explained only by nervous agency : and, when tlie conformation of the parts consecutively affected are considered, and the pronenessof the disease thus superinduced to assume an inflammatory and congestive state, retaining at the same time the gouty or rheumatic character, is taken into account, it is reasonable to suppose that the organic nerves are the chief channel of transfer, and seat of the affection ; their intimate anatomical connection with the blood-vessels explaining the morbid state of vas- cular action with which the transferred disease is so frequently accompanied. 174. B. lint there are metastases of a somewhat difl^erent kind from the above ; but which, equally with these, present morbidly excited action ; the difference consisting chiefly in the extreme degree in which sensibility is altered in those already no- ticed. In the exanthemata, and even in the course of several chronic eruptions, the cutaneous affection suddenly disappears, and dangerous disease is developed in an internal organ. In some cases the superinduced malady is merely the localisation or determination of the morbid action to a single organ, the external afl'ection disappearing in consequence — a result not infre- quently of depression of the powers of life, or of irritants acting upon the part thus secondarily diseased, or of both causes conjoined. In other instances, particularly in chronic eruptions and discharges, the internal or consecutive malady is the consequence of the suppression of the external disorder. In order to form an opinion relative to the nature of metastasis in exanthematous diseases, it is necessary to attend to the following circum- stances: — 1st. That they are frequently caused by the neglect of sufficient evacuations early in the disease, by a cachectic habit of body and con- stitutional vice, by breathing a foul air, and by injudicious regimen; — 2d. That whatever sud- denly lowers the nervous energies, or weakens vital resistance to hurtful agents, or perturbatcs the frame, will often cause a metastasis of the disease ; — 3d. That the metastasis may be either complete, the external eruption disappearing entirely ; or incomplete, the eruption still partially remaining. In these diseases the morbidly excited vascular action of the skin evacuates a peculiar matter, which is capable of propagating the disease, and which is either carried off' chiefly in the in-;ensible perspiration, as in measles and scarlatina, or in the more consistent matter of the eruj)tion, or in both, as in small-pox. When, therefore the morbid vascular action and its attendant evacu- ation are either prevented from appearing in, or suppressed, Irom the cutaneous surface, it may be reasonably inferred that they will be diterniined to some internal viscus, giving rise to inflammation of, and serous effusion from, mucous or serous surfaces; and congestions, infiltrations, inflam- mation or hepatisution of parenchymatous organs. Thus in scarlatina, measles, small-pox, erysipelas, DISEASE — Circumstances &c., the suppression of the eruption not infre- quently producesonc or more of the above efl'ects, and constitutes the chief diseased appearances in fatal cases. 175. C. There is another form of metastasis, that consists chiefly of morbid secretion ; and altliough vascular action is concerned in producing the matter found in tlie secondary seat of di-case, still the transfer from the original seat evidently takes place through the channel of the circulation. We not infrequently observe purulent or ichorous matter, which has been formed in one part, re- moved from thence, and infiltrated, or secreted and accumulated, in another part ; occasioning consecutive abscesses (see Abscess), or some other structural change, in a parenchymatous organ, or puriform effusion into natural cavities. In these cases, the passage into, and presence of morbid matter in, the blood, excite increased vascular action in some part by means of which it is either evacuated from tiie system, if the morbidly excited part be an emunctory ; or infil- trated and collected, if it be a parencliymatous organ ; or effused and retained, if it be a serous orsynovial cavity. Thus, collections of puriform matters have been found in the liver, in the joints, in the lungs, in the brains. Sec. after small- pox, erysipelas, fevers, inflammations of veins, or of remote or external parts, and after fractures ; and olten without any antecedent disease of the viscera thus consecutively disorganised, or disorder referrible to them, proportionate to the extent of disorganisation observed on dissection of fatal cases. 176. D. From the foregoing I conclude, 1st. That metastases may be divided into — (a) those mani- festing fully expressed disordered action, in which the sensibility is more or less excited ; and (h) those consisting of latent disorganisation, and produced chiefly through the medium of the circulating fluid: or into — (a) tho'^e which affect the sub- stance of an organ ; and (S) those which take ^place to an excreting surface or viscus — as the skin, the intestinal mucous surface, the kidneys, and the salivary glands — and which frequently terminate favourably by evacuation from the cir- culation of noxious matters that were the chief cause of the metastasis. — 2d. 'i'hat they are brought about — (a) by means of the organic nervous system, as in gout and rheumatism; — (/)) by the influence of this system of nerves upon the blood-vessels and capillaries, determining to various surfaces or structures a preponderating degree of morbid action and its results, according to the operation of numerous intrinsic and ex- trinsic causes, as in exanthematous metastases ; — (c) by the absorption of hurtful matters into the circulating current, wheie they excite, internally as respects the capillaries, the increased or morbid action of some secreting surface or emunctory, or occasion the disorganisation of some predisposed parenchymatous organ. 177. X. The Circumstances modifying the FoniM, Complications, Duration, and Termi- nations OF Disease, are as numerous as the causes, — predisposing, exciting, and determining, — in which it originates. The constitution ard diathesis of the patient; a cachectic or vitiated habit of body; the continued operation, during the course of the disease, of the causes which in- duced it; the depressing passions; impure or stagnant air ; all sudden mental and physical per- MODIFYINO THE FORM, ETC. OF. 601 I turbations ; extremes of temperature ; injudicious I treatment and regimen ; the use of medicines I which either suddenly or intensely excite, or de- press, the vital or nervous energies, and weaken the restorative powers ; neglect of evacuations, and of the state of the secretions and excretions ; the iiiiiiia diligenlia of the practitioner, or im- proper interference with the salutary processes of nature, and with critical evacuations and changes ; the too early recurrence to a full or stimulating diet, or exposure during convalescence to any of the causes specified above ; will not only modify the states and duration of disease, but also occa- sion the succession of one disease into another, render morbid action more or less coinj)licated, transfer it from one structure or organ to another, and occasion relapses of greater or less severity. (See Physic — Practical Principles of ; and Symptomatology.) BiBLioG. AND Refer i. jEtiolooy. — G. E. 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Carleton, Exercitationes Patholo- gies novis Anatomicorum inventis Sedulo inquiruntur, 4to Lond. V^i^X. — T.Bartholinus, De Anat. Pract. ex Cadavenbus Morbosis, &c. 4to. Hafnis, 1674. — G Hor- stms Spec. Anat. Practice. Franc. 1678. — Th. Bond, hepulchretum Anatomicum sen Anat. Pract ex Cada veribus Morbo denatis, 3 vols. fol. Genev. 1679—1700 F. Rarrere, Observ. Anat. tirees de I'Ouverture des Ca davres 4to. Perign, 1751, 2d ed. — C. N. Jenty, Anato- mico-Physiological Lectures on the Animal tEconomy and Pathological Observ. deduced from the Dissection of Morbid Bodies, &-c., 3 vols. 8vo. Lond. 1751—1765 _ J. B. Morgagni, De Sedibus et Causis Morborum per Anatoraen indagatis, 2 vols. fol. Venet. 1761.- A'. Clossy Of some Diseases of the Human Body, taken from the Dissection of Morbid Bodies, 8vo. Lond. 1763 A v Haller, Opera Minora, 4to. Laus. 1762-1768.—!/. Lieu- taud. Hist. Anatomico-Medica, Sistens Numerosissima Cadeverum Hum. extispicia, &c. 2 vols. 4to. Paris, 1767. —E. 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Y. 182.5 J. Cru- veilhier, Essai sur I'Anat. Pathol, en General, et sur les Transformations et Productions Organiques en parti culier, 2 t. Hvo. Paris, 1826. ; et Anat. Pathol, du Corps Hum., ou Descriptions avec Figures Lithog. de diverses Alterations Morb. &c. fol. liv. i — xxv. Paris, 1828—1838 —A. ir. otto, Seltene Beobacht. zur. Anat. Physiol und 1 athologie Gehdrig, 4to. Breslau, 1816—1824. ; et Ver- zeichneiss der Anat. Praparaten Sammlung des Kdnigl Anatomic- Instituts zu Breslau, 8vo. Bresl. 1826 J F iUfcArc/, TabulsAnatomico-Pathologics, &c.fol fasc i -1 IV. Lips. 1817— 1826.— J. R. Palletta, Exercitat. Patholo- gies c. Tab.^n.4to. Mediol. WlO—Xmd.—Consbruch Tas- chenbuch der Path. Anat. fur Praktische u. Wunditrzte 8vo. Leips. 1820 — /'. J. Wassermann, De Mutat. Patholol- gicis primitivarum in Organismo Humano formationum 8vo. Padua, \WIO.—Tacheron, Recherches Anat. Pathol' sur la Med. Pratique, etc. 3 t. 8vo. Paris, 1823.— Poi/roax' Rech . sur les Mai. Chroniques et sur les Affect. Organiques et les Mai. Hereditaires, 8vo. Paris, 1823.— A'. Richat Anat. Pathologique, par Roisseaux, 8vo. Paris, 1825 — Merat, in Diet, des Sciences Mtdicale.s, vol. xxvii p 485 vol. xxxviii. p. 138., et vol. Iv. p. 2\(i. — Laennec, Su'r 1 Anat. Pathologique, in Journ. de Med. par Corvisart Leroux, Sec. t. ix. p. 360. ; et Diet, des Scien. Med. vol. ii! p. 46 Le Blanc et Trousseau, in Archives Generales de Med. t. xvi. p. 522., t. xvii. p. 165., t. xviii. p 336 — Dezeimcris, in Ibid. t.xx. j). 157. 358., t. xxi p 5 161 325. et im.—Ribcs, De I'Anat. Patholog. consider.5e dans ses Vrais Rapports avec la Science des Maladies t i 8vo. Paris, 1828. —G. .-/Hrfrn/, Precis d' Anatomic 'Pa- thologique, 3 tomes, Hvo. Paris, 1829. —J. G. Lobstein Traitc d'Anatomie Pathologiciue t. i. Paris 1829 — * J. Hope, Principles and Illustrations of Morbid Anatomv &c. Hvo part VI. 1832— 1833. — fl. Carswcll, Illustrations of the Elementary Forms of Disease, fasc. i et xii 4fn Lond. 1833—1838. iv. PEnioDiciTY OF DisEA.sE. — S/«/,/, De Affect Pe- nodicis. Hals, 1702. — ;waennec, in which the principal lymphatic trunks were ob- structed without any collections of fluid having been formed. — D. Monro and M. Dupuytrex lied the thoracic duct in the lower animals, but dropsy was not the consequence ; whilst Mr. CiiESTON found it obliterated in a case of anasarca. I therefore infer, that alterations of these vessels either may, or may not, be the principal patholo- gical cause of the accumulation of fluid ; that, in respect of these species of lesions, as well as of others, additional changes are frequently requisite to the production of effusion ; and that, in many instances where disease of these vessels has been found in connection with dropsy, it has been rather a coincident effect of functional or structural change, or of both, in some vital organ, than the chief source of the collection of fluid. From what has now been stated, it may be concluded, that opinions as to the exclusive operation of any one set of vessels in producing symptomatic drop- sies are altogether erroneous, and that either of them may be concerned in the result, more espe- cially the veins. 28. The Jiuid collected in dropsy from ob- struction in the circulation differs from the serum of the blood chiefly in containing much less al- bumen. It is usually limpid, inodorous, either colourless or of a citron tint ; and, in some instances, when the obstruction has occurred suddenly, it is slightly coloured by the escape of a few of the colouring particles of the blood. The parts containing it are commonly free from any material change, excepting in the more chronic cases ; and it often collects in very considerable quantity, before much disorder referrible to the accumulation is complained of. The symptoms will necessarily vary with the seat and rapidity of tlie collection, and the parts primarily or con- secutively affected. The diagnosis of effusions depending upon disease of the circulating vessels is very difficult in all cases, and nearly impossible in many. When it occurs in the strumous dia- thesis, or early in life, or is connected with, or consequent upon, swellings of the lymphatic glands, lesions of the lymphatic system may rea- sonably be inferred ; and when it commences as a local oedema, or is limited to a single limb, or continues in the lower extremities without any signs of disorder referrible to the large cavities, the obstruction of a considerable venous trunk may be inferred. If it appear very slowly in the lower extremities, and increase very gradually, and be attended by a slow, or unequal, or irregu- lar pulse, great coldness of the limbs, with or v^■ithout discolouration or sores of the legs, parti- cularly in aged or gouty persons, the arterial system will very generally present structural change, as ossific deposits in some part of its course. 29. ((•) Drops}/ cotmectedu-ith disease oj the lungs. — Either hydrothorax or anasarca, or both, may occur in consecjuence of jiulmonary affection, or merely as coincident efl'ects of the same causes ; and in many instances effusion may take place in the pericaulium, in addition to the other forms of dropsy. The acute states of anasarca are not infrequently connected with inflammation, con- gestion, or liepatisation of the substance of the lungs, or with acute bronchitis, particularly after exjiosiire to cold and moisture, or after scarlatina or measles. In many of these cases tlie pulmonary affection is somewhat obscure, the symptoms being imperfectly developed ; and, unless auscul- tation be used, is liable to be overlooked or mis- DUOPSY' — SECONDAny on Consecutive. 611 taken. Dropsy from chronic bronchitis generally supervenes, and proceeds nuich nure slowly than that which is connected wilii the acute diseases now mentioned, but it usually appears in the same manner; the face, particularly the eyes, and upper extremities, first becoming ccdemalous, and subse- quently the ancles. When any aggravation of the bronchial affection occurs, or if the inHammation extends to the substance ot the lungs, the dropsical effusion often increases rapidly. After repeated exasperations of the pulmonary disease, with occa- sional amelioration during summer, in the more prolonged cases, the anasarca becomes more and more general, and at last effusion takes place into the pleurae, the pericardium, the cellular substance of the lungs ; less frequently into the peritoneum ; and in some instances into the ventricles, or be- tween the membranes of the brain ; and the patient is more or less suddenly cut off. 30. As fluid is effused into the pleura3, cr cel- lular parenchyma of th.e lungs, difficulty of lying down, and dyspnoea, come on and increase ; and as it collects in the pericardium, irregularity of the pulse, palpitations, anxiety, oedema of the countenance, fulness of the jugular veins, &c. supervene. If it accumulate on the brain, stupor, coma, paralysis, or apoplexy, takes place. Dropsy occurring in the latter stages of tubercular con- sumption or chronic pleurisy is generally confined to the lower extremities. It sometimes, however, extends more generally, and occasionally more or less fluid is effused into the cavities of the chest* 31. (d) Dropsy from disease of the liver and spleen. — The ancients imputed dropsy more to the liver than to any other part ; and during the fif- teenth and sixteenth centuries, this organ was generally considered as being always its cause. VVarmbold, Pezold, Vater, Bianchi, and others, however, showed that it was sometimes free from alteration, even in ascites ; and more recent and precise research has proved that it is often not materially changed ; and that, in many cases of dropsy, where it has presented certain alterations, disease was likewise found in other viscera, to which the effusion might be referred with greater justice than to the hepatic lesion. But collections of fluid are very fretjuently formed in the la^t stages of most chronic diseases of the liver, especially in those which impede or obstruct the circulation of the vena porta. As to the nature of the lesion, very imperfect, or hardly any know- ledge can be obtained during life, or even previ- ously to the effusion, unless as to the existence of enlargement, and sometimes of abscess, which may generally be ascertained by careful examination and percussion. 32. When, however, the dropsy has been pre- ceded, for a long period, by dyspeptic symptoms, particularly by flatulence, uneasiness in the sto- mach after a meal ; by pain or tenderness in the right hypochondrium, below the right shoulder- blade, or at the top of the shoulder ; by short, dry cough, and the usual signs of chronic disease of the liver, more particularly by the projection of the edge of the organ below the cartilages of the false ribs ; by jaundice ; light or clay-coloured stools ; scanty red or high-coloured urine, de- positing the lithic acid sediment ; and by slight evening fever; the accumulation may be imputed to the liver, the disease of which, and its attend- ant symptoms, being frequently of very long duration before any collection forms. The dropsy usually appears first in the ancles, towards night ; or in the abdomen, occasioning slight fulness ; or nearly at the same time in both. The urine is then more scanty ; and sometimes becomes dark, muddy, turbid, or thick. The skin is often harsh or dry, the bowels constipated, and thirst increased. The progress of the accumulation varies considerably. Occasionally the anasarca of the lower extremities and the ascites increase equally and gradually. In some instances, the former proceeds much more slowly than the hitter J and, in others, the acites arrives at its utmost extent without much oedema of even the ancles. In many cases there is great vacillation in the course of each ; the one increasing and the other diminishing, or either or both expe- riencing a sudden aggravation, and rapidly reach- ing the acme. Sometimes the collection in tlie abdomen advances rapidly, and arrives at the utmost in a very few days, without any attendant anasarca ; the bowels being obstinately consti- pated, and the urine nearly suppressed. In these cases, the patient generally complains of nmch pain and soreness, and frequently of tenderness, of the abdominal parietes — probably owing partly to the rapid distention ; and possibly, also, to the action on the peritoneum, of the irritating proper- ties of the collected fluid, arising out of the circum- stance of its containing much of the injurious constituents that are usually removed from the system in the excretions which are so completely suppressed. In dropsy from diseased liver, there is seldom any effusion into the serous cavities of the chest or head. But as ascites reaches the utmost, dyspnoea becomes urgent, owing to the diaphragm being carried high up into the thorax ; and during the last few days of existence, slight or low delirium appears, at first during the night ; the pulse and breatliing becoming rapid and weak, and the general weakness extreme, sometimes with distressing nausea or retchings, and the patient sinks. 33. When dropsy depends upon disease of the spleen, evident enlargement of it generally pre- cedes the accumulation of water, which, as when it arises from disease of the liver, usually forms in the abdomen, and in the lower extremities. In some cases, particularly in those who have resided in warm countries, or in miasmatous lo- calities in temperate countries, the enlargement of the spleen is associated with chronic alterations of the liver ; and the consequent dropsy is but little under the control of medicine. But when the lesion of the spleen is its chief or only source, it may be reinoved by treatment, along with the disease in which it originated. When dropsy comes on after repeated attacks of ague, and re- sidence in an insalubrious climate, enlargement of the spleen is often influential in its production, or co-operates with other lesions in causing it. In these cases, change of air is one of the best means of removing it. 34. (e) Dropsi) from disease of the kidneijs. — It may be stated of lesions of these organs, as well as of others found in dropsies, that they are often the principal pathological causes of the ef- fusion, but that they frequently also exist without this effect resulting from them. There can be no doubt that every change of structure, to which the kidneys are liable, may be more or less cod- 11 r 2 612 DROPSY — Secondary or Consecutive. cerned in tlie production of effusion, especially those which impeJe or interrupt their functions. Of this latter kind seem to be the principal of those so well described by Dr. Bright (§ 13.). Dropsy may arise either trom disease of the kid- neys alone — which seldom occurs, and in which case it usually commences with anasarca, at first affecting chiefly the lower extremities — or from lesions of tliese organs associated with those of the heart, or of the lungs, or liver. In such complicated cases, the disease of the kidneys may be either primary or consecutive ; perhaps, more frequently, the latter. — a. When it is consecutive, tiie dropsy commences, as already described, in alterations of either the circulating or respiratory systems ; the accession of the aftec- tion of the kidneys being often distinctly indicated by pains in the loins, sickness, vomiting, occa- sionally purging, and coagulable urine. In some instances, however, renal disease may exist with- out these symptoms being prominent ; and co- agulable urine may be present without the kidneys being particularly implicated. — B. When the renal afl:ection is the primary alteration, the dropsy commences as anasarca ; but rapidly ex- tends to the cavities of the pleuree and pericar- dium, of the peritoneum, and not infrequently of the arachnoid. In most of these cases, the symp- toms are more acute, and the progress of the dis- ease more rapid, than in any of the other forms of symptomatic dropsy . This seems attributable to the disease of the kidneys being such as pre- vents them from removing all, or even a large proportion, of the injurious elements constantly requiring elimination from the blood ; to the con- sequent secretion of a portion of them in the ac- cumulated fluid ; and to tiieir imparting irritating properties to it; whereby it induces inflammatory action in the serous surfaces containing it, with rapid aggravation of all the phenomena, and occasionally a concentration of the malady in one or more of its usual seats. Thus, it is not uncommon to perceive symptoms of pleuritis or pericarditis, or even of peritonitis, to accompany, or even to precede, the more advanced periods of the effusion into the respective cavities ; and, as the disease is increased in one or more of these, to observe the disappearance of the fluid from the extremities. In some instances, where the collec- tion has formed rapidly in the cavities of the chest, either preceded or attended by acute symptoms referrible to this situation and its con- tained organs, not only the anasarca, but also the ascites, where one or both have previously existed, has partially or nearly altogether disap- peared, the rapid eflTiision into tiiese situations soon terminating existence. In other instances of this form of dropsy, eflfusion on the brain is superadded to these, and tlie patient dies comatose. Dr. BuKMiT and Dr. Gregory remark, tiiat tiiere is great proneness to salivation from small doses of mercury in dropsy from sion of hurtful agents, whether generated within the system, and acting intnn- sically, or invading them from without. 45. A. Of dropsy consequent on disease of the heart. — It will be important to ascertain, as cor- rectly as the rational and ausculatory signs will enable us, the nature and seatoftlie cardiac lesion, in connection with the seat of effusion, and its characters in respect of activity. If obstruction to the circulation be seated in the left side of the heart, there will very probably be associated with the effusion, congestion of the substance of the lungs, which will aggravate the hydropic symp- toms, and render depletion the more necessary. Also, if the cardiac disease consist, eitlier alto- gether, or in part, of active enlargement of the parietes of the cavities, the dropsy will present a sthenic character, and require antiphlogistic remedies; but if the lesions be chiefly passive, — if there be dilatation with thinning or softening of the parietes of the heart, — the constitutional symptoms will possess analogous features, and the disease require an opposite — a tonic, treatment. It will be evident from these facts merely, that, in ss'mptomatic, as well as in idiopathic, dropsy, and even in that connected with impeded circu- lation through the heart, the strictest reference should be had to the state of vital power and vascular action, as the principal basis of our intentions of cure. 46. If a state of sthenic action exist, local depletion — preferably by cupping; hydragogue cathartics, as eUiterium and the croion oil, repeated from time to time ; or even these independently of depletion ; and subsequently the \mi of diuretics, or these at an earlier period where the active and repeated exhibition rf purgatives are not well borne ; will frequently remove the accumulation of fluid. In this state of the disease, digitalis is the most efficacious diuretic, especially after local depletions and purgatives, in the more sthenic cases. Debility rather indicates, than contra- indicates, the propriety of resorting to it. The infusion is the most certain preparation of this medicine. Half an ounce of it two or three times a day, as usually directed, is a much larger dose than that recommenfled of its other preparations ; hence the reason of its activity, its diuretic ope- ration being heightened by the addition of small doses of opium. If a tensive pain in the forehead, with disturbance of the cerebral functions, come on early after its exhibition, it will rarely be of service, or it may even be injurious, as remarked by Dr. Blackali,, and it, therefore, should be immediately relinquished. AVhen there is much debility, it should also be discontinued upon the first appearance of an increase of the urine. But even great debility is no reason against the use of this medicine, as Dr. Witheuing has shown ; only the more caution is required in its exhi- bition. In such cases I have usually combined it beneficially with camphor, a small quantity of opium, or with cinchona (F. 8.59.), and otlier vegetable tonics and cordials, or with F. 708. or 728. Colchicuin is sometimes of service when this form of 'dropsy assumes a sthenic character, or appears in tiie rheumatic or gouty diathesis; but it requires much caution. It is most sate, and at the same time most service- able, when combined with camphor or ammonia, or with the alkaline carbonates, and infusion of cinchona. 47. When the cardiac disease and its conse- quent effusion are of a passive kind, and especially if the constitutional powers are much reduced, a tonic treatment, in conjunction with stimulating diuretics, is retjuisite. The remedies of this de- scription, already recommended (§ 43.), — the in fusion of quassia, with the tincture of the sesqui- i chloride of iron, and tincture of digitalis; the j compound infusion of angelica (F. 219.); the J decoction of broom (ops ( F. 75.), with the com- pound spirit of juniper ; the compound decoction of tara.vacuni (F. 77.), with tincture of calumba or the potassio-tartrate of iron ; and either Formulas 570. 781. 859., or the following, will often be prescribed with benefit : — No. 179. R Potassa; Carbon. 3.i. ; Tinct. Ciimamom. Co. 5j.; Spirit, ^i^ther. Nit. 3j ; Iiifusi Gcntianae Comp. 3j. {vel. Ilecocti Scoparii Coinp. 5j.) ; Aqus Anelhi 3iij. M. Fiat Haustus ter quotidie suinendus. No. 180. R PotassK Acetatis 3 ss. — 3ij.; Tinct. Di- gitalis ^^\ viij. ; Tinct. Opii 111 v. ; Spirit. Junip. Comp. 5j. ; Infusi Quas.'iia; 3 ix.; Aqua; Pimenta; 3 iij- M. Fiat Haustus ter quatervein die siimcndus. No. 181. R Camplioras subactas, Guaiaci Resinse, aa 3j.; Pulv. Scilla; et Pulv. Digitalis aa gr. XV. ; Opii Puri gr. v. ; Olei Juiiiperi lllxxij.; Mucilag. Acacia; q. s. M. Contunde simul, et distribue massam in Pilulas aquales xlviii., quaruni capi;it binas ter in die. No. 18i. R I'inct. Digitalis HI x— xv. ; Liquor Am- moni,-e Acetatis 3 ij. ; Infusi Cinchona et Mist. Cam- plioriE aa 3 vj ; Tinct. Camphoric Comp. 5j.; et Spirit. Anisi3ss. M. Fiat. Haustus bis quotidie suraendus. 43. B. Dropsy from disease of the absorbing systems — veins and lymphatics. — The difiiculty of determining when the effusion is owing to these causes has been stated above, with such signs as sometimes indicate its existence (§ 25. et seq.). In the more limited states of anasarca, and even in ascites, bandages and frictions, assiduously em- ployed, with the internal exiiibition of the iodide of potassium, or of the other preparations of iodine to be found in the Appendix (F. 234. 723.), have proved exceedingly beneficial in some cases in my practice. The decoction of broom tops with liquor potassae, or this latter In the compound decoction of sarsaparilla ; equal quantities of the bi-borate of soda and bi-tartrate of potass in the decoctum cijdonim, or decoctuni guaiaci comp. ; the diuretic drinks, in the Appendiv (F. 588. et seq.) ; and frictions with deobstruent liniments (F. 295. 297. 311.), will occasionally be of much service. The carbonate of soda, or nitrate of potash, or both, exhibited in tonic infusions, to which small doses of digitalis are added ; and the infusion of berberis, or the compound decoction of taraxacum (F. 76, 77.), with carbonate of potash or of soda ; or the same alkaline carbonates with the infusion or mixture of the diosma crennta (F. 231. 396.) ; may likewise be employed, with a prospect of advantage, from their deobstruent operation. In all cases of this kind, jreiule exer- cise in the open air; the use of the artificial waters of jMarienbad, and Eger, or of Seltzer or Seid- schutz ; and strict attention to a moderate, di- gestible, and cooling diet ; will prove of essential benefit. 49. C. Dropsij coniiecled uilh p)ilmonarij dis- eases.— 1'he treatment in this complication should mainly depend upon the character of the vascular Rr 4 616 DROPSY — Treatment of CoNSECU'ri\'£. action, and vital power, and tlie nature of the existing pulmonary lesion. If active congestion or inflammatory action be present in the substance of the lungs, or in the pleuiae, general or local depletions, or both ; the internal use of antimonial preparations with diuretics ; and external deri- vation, as pointed out above (§ 40, 41.) ; constitute the principal means. The same treatment is re- quired, with the addition of purgatives, if the effusion be associated with acute or sub-acute bronchitis. In these states of the disease the heat- ing diuretics, as squills, ammoniacum, senega, &C., ought not to be exhibited. The bitarlrate of ■potash vi\\.\i bihorate of soda or with digitalis; or any of the neutral salts, with liquor ammonim acetatis, the spiritus EEtlieris nitrici, or tlie acetic cither; or the preparations of cn/f/ncHHi with the alkaline carbonates, or with camphor or ammonia ; are the most appropriate. In the chronic and asthenic states of pulmonary disease connected with a similar condition of the system, a tonic treatment is indispensable ; and the warmer diuretics (F. 552. 570. 893.) will generally be employed with benefit, more particularly the balsamic and terebinthinate preparations (F.22. 169. 485. 487. 571. 681. 827.), and ammoniacum, with the tinct. camphora; comp. (F. 708.), or the tinct. opii camphorata (F. 728.), or the preparations of squills with any of the neutral salts, given in the light bitter, or tonic, or diuretic infusions. (See BiiONCHlTis — Treatment of Chronic, &;c.) 50. D. Treatment of dropsi) from disease of the lirer and spleen. — (o) This form of dropsy is very commonly connected with general debility, and with a cachectic state of the frame. In some cases, the colour, consistence, and vital cohesion of the soft solids, are more or less changed, particularly the cellular, serous, and mucous tissues. These cir- cumstances should not be overlooked in framing plans of treatment. Cases of this complication are comparatively rare, that require general or even local depletion. However, when symptoms of inflammation of the liver are present, general and local depletions — the latter at least' — should not be omitted. ]\[ercuriuls should also be em- ployed, especially when the surface of this organ is the part chiefly inflamed; and occasionally externally by friction, as well as internally ; counter-irritation being kept up at the same time. But it is doubtful whether or not these pre- parations are beneficial in the chronic lesions of the substance of the liver. I have generally abstained from prescribing them in such cases, excepting the bichloride, in minute doses in the compound decoction of sarsaparilla, or in the preparations of cinchona. More service will accrue from the nitro-hydrochloric acid balli, or from sponging the surface of the hypochondria, night and morning, with a warm lotion contain- ing these acids, or from the internal use of them. Tlie chlorate nf soda may also be taken with ad- vantage ; but 1 believe that greater benefit will be derived from the iodide of pulassiuin, or tha olUor preparations of iodine, given in minute doses, and continued for a due ])eriod, than from any other medicine. Either the infusion of calumba or of quassia, or the infusion of pine lo])s; or the de- coction of genista, or of taraxacum, witii the alkaline carbonates, or with the liquor ammonia; acetaiis, and spiritus a'theris nitrici; and the bi-lartrate of poiash with iji-borate of soda, and squills, taken in the form of electuaiy, with the inspissated juice of the samburus nigra, will be more appropriate when the liver is organically changed than in the other forms of the disease. 'J"he preparations oi colchicum and tobarco, parti- cularly the tinctura tabaci composita (F. 742.), may also be given in this complication, but with caution. They have seemed to me most benefi- cial when associated with large doses of the alka- line carbonates, and taken in tonic infusions or decoctions; as those' remedies which depress the vital powers too low are seldom productive of benefit in cases of this description. (See Dropsy — of the Abdomen."), 51. (6) A nearly sitnilar treatment will be necessary when the sple/n is enlarged, to that now recommended in cases of organic change of the liver. I believe, however, that tonics of an active kind, particularly cinchona, quinine, the prepa- rations of iron, and the arsenical solution, either conjoined, or alternated with purgatives or diure- tics, are much more necessary in this complication than in that last discussed. All the cases 1 have seen connected with enlargement of the spleen were consecutive of protracted agues ; and in these, after exhibiting one or two full doses of calomel with camphor, and fully evacuating the bowels by means of the compound infusions of gentian and senna (F. 266.), the above tonics, prescribed as now mentioned, and assisted by frictions over the region of the spleen, were pro- ductive of great benefit. In the case of a patient from one of the most marshy parts of Essex, with tills complication, the preparations of iodine were essentially efficacious. In this state of the disease, but little or no permanent benefit will be derived as long as the patient continues to reside in a miasmatous locality. In it, also, more than any other form, will advantage accrue from moderate exercise, change of air, sea-voyaging, and the use of the Carlsbad or Ems mineral waters, — which, with those of Marienbad, Eger, and Seidschutz, are often of service when the efi'usion arises from hepatic obstruction. 52, E. Treatment of dropsy from disease of the kidneys. — AUenUon has been so recently drawn to this complication, by the writings of Dr. Bright, that sufl^cient experience of the means of treating it has not been yet acquired, I have had an opportunity of treating only three cases, in which these organs were found diseased after death, since tlie publication of Dr, Brigiit's work. They were persons of broken-down constitutions, by drinking. In one of them the accumulation steadily increased, notwithstanding cupping over the loins, counter-irritation in this situation sub- sequently, friction with stimulating liniments, and various internal remedies, were employed. In the others, these means were of temporary benefit. The bitartrate of potash with jalap, and squills with opium or hyoscyamus, are mentioned by this pathologist as having been the most serviceable in the cases which occurred in his practice. I believe that, in a very great majority of instances where effusion proceeds from this cause, the irri- tating nature of the fluid poured out superinduces inflammation of the membranes and cellular tissue containing it, and thereby aggravates the disease, and accelerates a fatal issue. That the fluid is possessed of these properties may be vi(!vved as a postulatum ; but if it i)e considered that, when the functions of the kidneys are inler- lupted, excrementitious or -serous plethora (see DROPSY — Remarks on Medicines recommended in. 617 Blood, § 19.) will be the result ; and that the watery parts of the blood, which are ertused from this cause, must necessarily contain a consider- able quantity of the injurious matters usually eliminated by tiiese organs ; the irritating quality of the accumulating fluid here contended for will be admitted. In the cases seen by me, consecu- tive inflammatory action appeared in the seats of effusion; and a similar occurrence took place in most of those detailed by Dr. Bright. When this complication is attended by debility or diar- rhoea, the propriety of employing tonics, with diuretics and opiates, as cinchona or quinine with the mineral acids or squills, cannot be doubted ; and, when the bowels are constipated, or when diarrhoea is not present, free alvine evacuations by purgatives combined with bitter tonics, which increase their operation, will be productive of benefit. 1 believe that there are few cases of this form of dropsy that may not admit of the judicious exhibition of strengthening medicines, when a free action is exerted on the bowels ; that the diarrhoea and tormina which sometimes accom- pany it, are seldom attended by copious evacua- tions, but require that they should be procured by medicine; that the bulsams and terehinthinules, either conjoined with these, or trusted to chiefly alone, or with small doses of opium, will prove more beneficial than other diuretics ; and that a lowering or antiphlogistic treatment has been too generally adopted, as well in cases of this descrip- tion, asin otherswhere coagulable urine is observed, owing to the mistaken notion that this symptom always indicates inflammatory or sthenic action.* 53. F. The treatment of dropsy from disease of the uterus or oimria will depend upon the state of vital power and vascular action. Al- though very generally evincing an inflammatory character, and connected with suppression of tlie sexual discharges, yet it is often associated with depressed vital or constitutional power, at least in those instances which have come before me. When, however, it supervenes on chlorosis, it is altogether a disease of debility. In the former .class of cases, local depletions, cooling aperients and diuretics with gentle tonics ; the nitrate of potash and carbonate of soda, with tlie spiritus aether's nitrici and hyoscyamus in the infusion of cinchona, or of calumba, or of juniper berries ; the bi-tartrate of potash with bi-borate of soda; the expressed juice of the sambucus nigra and syrup of squills ; and frictions with oleaginous or te- rebinthinated liniments (F. 297. 311.); may be severally employed ; but the treatment should mainly depend upon the presumed state of the pri- mary disease, of the consecutive effusion, and state of vital power. The object, in this form of the disease especially, should be to remove the pri- mary lesion ; for when this is accomplished, the cflused fluid will soon be absorbed. When the disease follows chlorosis, the preparations of iron, the mistura ferri composita, the sesqui-oxide of iron with electuary of senna and oxymel of squil's; the preparations of juniper with cinchona, &lc., * A very obstinate case of anasarca, with coagulable urine, in which I had prescribed various remedies with- out, or with little, benefit, was entirely cured by the following in a few days : — R. Potassfe Bitart. 5 j^^s. ; Soda; Bilioratis 5 ss. ; Pulv. Jalapa; ,3 ij. ; Syrupi Zingiberis 3 ij. M. Fiat Kkcluarium cujus capiat cochleare unura minimum, bis terve quotidit. with change of air; horse-exercise, the chalybeate mineral waters, and warm clothing, will generally be efficacious. I had recently a case of this de- scription under treatment, both whilst, it was simple chlorosis, and when water had collected in the abdomen and lower extremities. I was sur- prised at its resisting- the free use of chalybeate and other tonics; when I found that the patient had entertained a dislike to salt, and to food which contained it, and had long avoided it. The cause of the general and extreme cachexia was now evi- dent : the use of salt was enforced ; the chlorate of potash was also prescribed alternately with the pre- parations of iron, and recovery soon took place. 54. ii. Nonets of the JMedicinis recom- mended IN Uropsies by Authors, with Prac- TiCAi, Remarks. — Having, in the foregoing sec- tions, stated chiefly the results of my own expe- rience, I now proceed to notice, under distinct heads, the means advised by respectable and oiiginal authorities for the treatment of this class of diseases. The remedies recommended in the cure of dropsies have usually been directed with the following intentions: — 1st. To remote the state of vascular action, and vital power giving rise to efusion — (a) by refrigerants, comprising vascular depletion and other antiphlogistic reme- dies ; (6) by sedatives ; (c) by external irritation ; ((/') by tonics and astringents ; and (e) by a com- bination of two or more of these; — 2d. To remove obstruction to the circulation, and to promote the at,sorj)tion and discharge of the accumulated fuid — (") ^y deobstruents, frictions, and bandages ; (b) by purgatives and hydragogue cathartics ; (c) by diuretics ; (d) by emetics; (e) by sudo- rifics ; and (/) by various combinations of them ; — and, 3d. To evacuate the fluid by surgical aid — (a) by blisters and scarifications; (b) by acupuncturation ; (c) by paracentesis. Of these last means notice will be taken when the specific slates of dropsy in which they have been employed come under consideration. 55. 1st. To retnove the State of Vascular Action and Vital Power giving rise to Ejf'usinn. — A. By refrigerants, &ic. — (a) Vascular depletion, general or local, or both, has been advised in the acute states of the disease from Hippocrates up to the present day ; and has been more particularly in- sisted on by Mesue, Bonet, Aascheim, Schulze, Bruele, Juncker, Stole, Tissot, Rush, Ober- TEUFFER, GrAPENGIESSER, BlACK ALL, AbERCROM- BiE, Graham, Venables, and Ayre. The propriety of repeating it has been shown by J. P. Frank, Dr. Grahasi, and some later writers ; although the number of cases that can admit of the repetition of general bloodletting will be comparatively small, and those only in the young or unbroken constitution. — (6) A'iti-e has been very generally prescribed, not merely as a refrigerant, liut as a diuretic. Rush attached some importance to it after venaesection, directing it with spare diet ; and Rosier and Obkrteuffer, with squills. — (c) The hydro-chlorate of ammonia, in doses of ten grains to a scruple, has been given by me in some cases consequent upon ague with benefit ; and is appropriate not only to acute and sub-acute cases, but also to the more passive states of the disease, particularly when taken in tonic or warm diuretic infusions, and conjoined with amrnoniacum. — (d) Low diet has been es- pecially noticed by 'I'lssox and Rush. 618 DROPSY — Remarks on Mebicines tiecommended in. 56. B. By sedatives. — (a) Antimonials may be more appropriately considered as sedatives than as diaphoretics, inasmuch as their operation in the latter capacity arises from their sedative influ- ence on vascular action. James's poitder and tar- tar emetic are the preparations of this class most to be depended upon, and are sometimes useful in the acute and sub-acute forms of the disease, con- joined with calomel, or with cream of tartar. They have been prescribed in such cases by Van Hel:mont, Sydenham, jMynsiciit, and Riciiter. With squills and saline diuretics, they have been employed by Brisbane and Willich. — -(/;) Tiie diuretic operation of tobacco is evidently owing chiefly to its sedative influence on the circulation. This active substance is indicated in the more acute states of the disease, but it may also be ex- hibited with tonics and stimulating diuretics, where the debility is more manifest. It has been recommended in the form of powder, infusion, wine, or tincture, by Magninus, Bartholin, Fowler, Neander, Garnett, and Baldinger. Dr. Fowler advises the infusion in gradually increased doses; Garden, its ashes with rhubarb and sulphate of iron ; and some Continental writers with camphor in the form of tincture (see F. 742.), which may be added to other medicines. The ashes of tobacco are very frequently men- tioned by the writers of the last century, but their operation can depend only on the quantity of vegetable alkali they furnish. — (c) Several of the solanaceous order of plants, besides tobacco, have been employed in dropsies, both as the principal means confided in, and in order to assist, by their sedative and diuretic operation, other medicines possessed of less equivocal diuretic properties. The belladonna, the phijaalis alkekengi, the solanum dulcamara , the s. somniferum, and the s. nigrum, have been employed by SToisRK, Baldinger, Stark, and others, with this intention. The hifoscyamus has also been very frequently pre- scribed, with the view of diminishing irritation and promoting the action of other medicines ; but it is inferior to — (d) opium, in this respect, the good effects of which in dropsies have been particularly noticed by Willis, Arnemann, Brocklesby, RiTTER, Baker, and Masov. Its influence in determining and heightening the effects of diuretics has been shown by IjEntin and Paris. Doem- UNG always added it to squills; and Leake, to this medicine and cream of tartar. — (e) The lactuca virosa has also been recommended to fulfil the same indications with the above by Collin, Durandk, and Riciiter, particularly in conjunction with digitalis — two grains of the extract of the former, with half a grain of the dried leaves of the latter, finely triturated with white sugar, and taken three or four times a day. The foregoing sedatives, as well as the colcliicum ( $ 80. ), will be found very useful adjuncts, and indeed not infrequently the chief means that should be re- sorted to when the disease is attended witii much pain, or with spasms or cramps. 57. C. Bfi external irritation. — It is but rarely that external irritants give issue to a quan- tity of serum suflicient to unload very consider- ably the vascular system : but in the acute, and especially in the sub-acute, states of the disease, after depictions, a judicious use of them is often productive of benefit, by tiansferring the irritation, sometimes occasioning the internal effusion, to external parts. They are applicable chiefly to dropsies of the thoracic cavities, depending upon pulmonary disease, to those consequent on scar- latina, and to ascites. The means by which counter-irritation should be effected is an im- portant consideration. In the states and species of the malady now alluded to, the ointment of the pofassio-tartrate of antimonii, or issues, may be pre- ferred ; or blisters may be applied in the more asthenic and rapidly progressive cases. When the effusion seems owing to obstruction of the liver, blisters, several times repeated, over the right hypochondrium, and below the right shoul- der-blades, or rubefacient plasters in the same situation, are sometimes of much service. When the kidneys are apparently affected, they may be applied over the loins, alter cupping in that situ- ation ; or the tartarised antimonial ointment may be used. In the more sthenic cases, or when the urine is very thick and scanty, it will be preferable to apply fine tissue paper between the skin and the blister, or to dip the plaster in boil- ing water before applying it, in order to prevent the absorption of the irritating principle of the flies. In some cases, scraped horseradish, or the inner bark of the mezereon, will prove excellent counter-irritants ; or mustard poultices may be used for this purpose. I have, in several cases, however, seen more benefit arise from the appli- cation of a cloth moistened with either of Formula; 296. 300. 311. in the Appendix, or with spirit of turpentine, over the seat of disease, than from any of the foregoing. The inflammatory irritation they occasion is never followed by unpleasant results, as in the case of blisters, which, in the old and debilitated especially, sometimes produce danger- ous effects if not carefully watched. 58. D. By tonics and astringents. — These medicines are often necessary in some of their various combinations, even in cases where it is necessary to resort to vascular depletion, and not infrequently after this practice has been em- ployed. Much, however, will depend upon the selection of these medicines, and the mode of exhibiting them, appropriately to the pathological states of the case. The observations already ofl^ered will assist the practitioner, with a due exercise of his own discretion, in this important matter. Tonics and astringents are indispensable in all. the passive or asthenic states of the disease, associated either with diuretics or with purgatives ; and in many of the sub-acute and even acute forms, after the antiphlogistic treatment has been prescribed, particularly when conjoined with ca- thartics. They are especially indicated where the eflTusion seems to depend chiefly upon an atonic state of the extreme vessels, and deficient vital cohesion o*" the cellular and serous tissues, with flaccidity of the soft solids generally. In cases of this description they have been directed by most writers, and even by J. P. Frank and Riciiter, by whom the inflammatory and sthenic states of effusion have been so ably investigated. 59, (a') Of the particular tonics that may be enqjloyed, the preparations of cinchona and sal- phale of i/uinine are the most generally appli- cable. They have been especially noticed by Lentin, Df. IIaen, Brougiiton, and Ring. The infusion or decoction of hark is an excellent vehicle for the alkaline and saline diuretics, as well us for several purgatives, the action of which DROPSY — Remarks on Medicines recommexded ix. 61^ It tends to promote. Lettsom gave cinchona with squills ; Lyson, witli serpentnria, either in tincture or infusion; J. P. Fhank, with juniper ; Horn, with the balsams or turpentines ; and YoGEL, with the neutral salts, or carbonates of the alkalies. Where the sthenic diathesis may seem to contra-indicate its use, the infusion will be advantageously associated with the nitrate of potash and carbonate of soda, and with appro- priate diuretic tinctures or spirits. It may also be given with the mineral acids and Ethers, especially the hydrochloric or sulphuric. The suljiluite of quinine may also be taken in the com- pound infusion of roses, or of orange peel, in con- junction with the sulphates of magnesia, or of potash, or of soda, and any diuretic spirit or tinc- ture.— (6) 'V\\e injusions of caltunha, of qnassiii, and of gentian, have been exhibited in similar states of the disease, and combined with the same substances, as cinchona. 60. ((■) The preparations of iron have been as generally prescribed in dropsies as those of cin- chona ; and, as in respect of them, with the object of imparting tone to the minute vessels, and thereby of diminishing effusion, and of preventing its recurrence after the fluid has been directly removed. This class of tonics was much em- ployed by Dover, Btackmore, Bergius, Tissot, Grieve, Frank, and Rush. The combination of chalybeates with purgatives is advised by Ried- LiN and Thomann. Dover recommended an electuary consisting of the sulphuret of iron, scammony, and crude mercury ; of which Dr. Blackall has made lavourable mention. Fou- QiTET directed it with sulphur. The ferri potassio- tarlras and the tincture of the sesqiii-cliloride are the preferable preparations ; but the sulphate or sesqui-oxide may likewise be used. An electuary containing the tartarised iron, the confection of senna, the inspissated juice of tiie sambucus nigra, and the syrup of squills, will often prove ser- viceable in asthenic states of the disease. — (rf) The absinthium, in the form either of in- fusion, wine, or powder, was formerly much ern- ployed ; and was praised by Celsus, Boxet, Hartjiann, and many others, particularly when given in conjunction with juniper, or other diu- retics. It has now undeservedly fallen into dis- use.— (e) Of the stimulating tonics, phosphorus has been prescribed, in minute doses, and usually dissolved in oil or a;ther, by Loebel, Gaultier de Ci.aubry, and others: it has likewise been used externally in oleaginous liniments. — (f) Insolation, or exposure to the sun's rays, has been recommended by Celsus and Portal. 61. (g) Several of the astringent tonics have been directed in various combinations. The sul- phuric acid was recommended by Mondschien, Haller, TissOT, Bang, and Hartmanx ; and was frequently given with the infusion of the bark or of the flowers of the sambucus nigra, or the in- fusion of quassia, or of cinchona. The hydro- chloric acid was also exhibited in similar states of combination by Riverius and Digbv. The nitric acid, either alone, or v\'ith the muriatic in eciual proportions, has been very commonly employed, both internally and externally, by practitioners in the East Indies, in cases depending upon hepatic disease (^ 50.). — (h) The sulphate of copper, in do-^es of half a grain each, with opium, has been praised by Wright. — (i) In adelition to these, the centaurium minus and the imtia campana have been noticed by Gni:i,ixG and others, who have prescribed them in the form of wine or beer ; and the prinos verticitlatus, by Barton. — (A-) The mineral waters of Pi/rmont, Spa, Bath, and Tunhridge, have been severally directed in cases for which tonics are appropriate. Dr. Percival recommended the natural and artificial waters which contain fixed air. Sciienck, Quarix, (iii.tiiRisT, J. P. Frank, and several other writers, mention in favourable terms change of air and sea-voyaging. — (/) JNIost of the ancients, with Fuller, Rush, and some others of the moderns, have insisted on the good eft'ects of active ex- ercise in the open air. AVhen the patient is able to adopt this advice, there can be no doubt of its great efficacy. 62. D. By a comhiiiaiion of iiuo or more of the foregoing plans of cure-. — I have already re- marked that depletions are not infrequently re- quisite to a moderate extent, in order to remove relative or excrementitious plethora, even al- though vascular action may not be increased ; and there is often a necessity for the exhibition of tonics at the same time, generally with purgatives or diuretics. The propriety, however, of asso- ciating sedatives with the various antiphlogistic measures noticed above, and counter-irritation with both, in the inflammatory or acute states of the disease, is still more manifest. The com- bination, also, of some one of the sedatives with the tonics or astringents, whether tliese latter be given alone, or conjoined with one or more diu- retics or deobstruents, is generally found useful, not merely in promoting their operation, but also in relieving the more uneasy sensations which i'requently occur during the progress of the dis- ease. 63. 2d. To remove Obstructions to the Circula- tion, and to promote the Absorption and IJischarge of the accumulated Fluid. — This indication com- prises three objects, — the removal of obstruction, the promotion of absorption, and the augment- ation of the urinary discharge. These, however, are so intimately connected, that the attainment of the first is generally followed by the second and tliird. — A. Bij deobstruents, and the use of Jriclions and bandages. — These means are ob- viously appropriate to cases of dropsy depend- ing chiefly on congestion of the large veins, or to obstruction either of them or of the lympha- tic system (§ 48.). Many of the remedies which are supposed to act upon the kidneys, operate in some respects by removing obstructions to the venous and lymphatic circulation, and increasing the action of the absorbents. Those substances which have been very commonly termed deob- struents, pass into the blood by the veins or lymphatics, where they either modify its con- dition, or excite the extreme ve-sels when they are congested, thereby accelerating the circu- lation through them and the veins, and remov- ing the state that favours increased exhalation. — (a) Mercurial preparations are amongst the most common medicines employed as deobstruents. But they are not always applicable ; for when the dropsy is connected with organic change in the substance of the liver, they should be given with circumspection. When the obstruction exists chiefly in the venous and lymphatic systems, or depends upon disease of the heart; or when 620 DROPSY — Remarks the effusion is caused by increased action in the serous membranes; they are valuable medicines. The scrofulous diathesis and weak vital energy are not always satisfactory reasons against tlieir use, altliuugh these states of system require a peculiar mode of exhibiting and combining them. In acute cases, calomel, with antimony or cam- phor and opium, is the preferable medicine. In this and similar states of preparation, it has been employed by Lysons, Langguth, Hamilton, BECKtn, and" others. Where active disease exists in the pleura;, pericardium, peritoneum, or sur- face of the liver, this is the best mode of exhibit- ing mercurials; but where there is much debilitii, this medicine should be given in small doses with soap, and guaiacum, as advised by RitPExnAu- SEN ; or in the form of Plummer's pill, with soap and taraxacum. In an atonic or asthenic state of vital action, as well as in the scrofulous diathesis, small doses of blue pill, similarly com- bined ; or of tiie bichloride dissolved in the com- pound decoction of sarsapariJla, or tincture of cinchona, with diuretics ; will be found both safe and beneficial medicines. JMercurials have been directed to be pushed to salivation by many authors; and in cases where the disease is con- nected with inflammatory action in the serous membranes, and when vascular depletion has been previously instituted and carried sufficiently far, tlie practice is beneficial. It is likewise applicable when there is evidence of inflammation of the surface of the liver, as indicated by pain, soreness, and tenderness of its region, See. In the more chronic and asthenic states of disease, mercurials have been directed to be given with squills, by Fischer and other writers; and with tonics, by Wright. 64. (b) Iodine, variously combined, has proved, in several cases of dropsy in which I have em- ployed it, a most valuable deobstruent and diu- retic. It is not applicable to the cases arising from disease of the serous membranes, and heart; but when the effusion proceeds from obstruction in the liver, or in the spleen, or in the veins and absorbents (§ 26, 27 . 3 1 . ), it seems to me more to be depended upon than any other medicine. I have pre- scribed it in tlie form o( tincture, iodide of potassium, ioduretted solution of' the iodide, and of ioduret of mercurii, both internally and externally, according to the circumstances of the case ; and have more frei|uently preferred the second and third of these preparations ; but when the debility is great, the tincture is, perhaps, more to be depended upon than the others. — (c) 'J'he fixed alkalies and their carbonates have had much repute in dropsies, and were very commonly employed by Sydenham, QuARiN, J. P. Frank, and most recent writers. Although generally used as diuretics, tliey act ciiiefly as deobstruenis, particularly when com- bined witii taraxacum, small doses of antimony, or of mercury. In cases of debility, tliey are ex- tremely useful with the tonic or warm diuretic in- fusions or decoctions, — as the infusion of cinchona, of juniper beiries or pine tops ; and they may be also associated with the nitrate of potash and diuretic spirits or tinctures. Or they may be prescribed with myrrh, or guaiacum, or sulphur, or ammoniacum, or s(|uills, or camboge, or the extract of black hellebore, according to the pecu- liarities of the case. - (iat gr. ij. ad vj. ter quaterve quotiiiie. 69. J. The sambitcus nigra and s. elmius — the common and dwarf elder — were praised by Fokes- Tus, Sydenham, Schroeder, Fouquet, Brock- LESEY, QuARiN, CiiESNEAU, and Lange. The inner bark is cathartic, and the flowers both purga- tive and diuretic. The infusion, inspissated juice, and powder, may be used. It has been almost entirely neglected by recent writers, but I have prescribed it with much benefit. — ?. The rham- nus catharticus was likewise employed by Syden- ham, and is still used in the form of syrup. Camhoge is often very efficacious when triturated with bitartrate or sulphate of jiotash. Hoffman.v prescribed it in an alkaline solution ; IvicuTEn, dissolved in oil ; and Ackermann, finely levigated with white sugar or cream of tartar. — Jalap, either its powder or its extract, has been very phlogistic treatment has been directed, should not generally used. Grieve gave it with nitre, and be overlooked (^59.) The combination of pur- gatives and cathartics with tonics and diuretics, was adopted by Scribonius Largus, Forestts, great reliance on the bitartrate of potash. I Van SwiEiEN with turbith mineral 70. £. Dr. HoRNE and Dr. Ferriar placed RiEDLiN, Sydenham, Thilenius, Baciier.Win CLER, RiTTER, Grieve, and most recent writers : the chief difference being as to the choice of substances, and the appropriation of them to the various states and forms of dropsy. — (/;) The dechsirueni effect of purgatives is most certainly obtained from moderate doses of j«/«7) with cream of tartar ; or from the extract of black Jtellebore, with myrrh, ammoniacum, and soap; orfrom Plummer's pill, wiih caniboge, soap, and taraxacum, given in moderate doses daily, and long persi-ted in. 67. {c) A hijdragogue operation is produced chiefly by elaterium, croton oil, camboge, the inner bark ol the common or dwarf elder, the rham- nus catharticus, hellebore, and the neutral salts. — a. Elaterium is often productive of benefit. It was much employed by Sydenham and Demi- ANi, and is still ve-y generally prescribed. It is given with soap or any tonic extract, in doses of half a grain every hour, until copious watery evacuations are procured. The following pills will be found the most certain in their operations : — No. 183. R Extr. Elaterii gr. vj.; Potassa> Sulphatis gr. XX. ; terebenesimul,dein contunde cum Pulv. Kadicis Zingiberis 3 j. ; SaponisDuri gr. xvj.,et forma in massam cum Olei Anisill] vj. vel q. s. Divide in Pilulas xxiv., quarum capiat unam, duas, vel tres, omni liora. 68. B. Croton oil is one of the most certain hydra- gogue cathartics that can be employed. It may be given with soap and compound extract of colo- cynth (F.543.), or with the aloes and myrrh pill, in doses of about half a drop every two or three hours, until it operates copiously. Dr. Nui- MO and Dr. Good prefer the alcoholic solution of this oil, but of that I have had no experience; I have found the mode in which I have directed it answer my expectations. — y. The extract of black hellebore has been much used in all drop- sical cases. This plant was very commonly employed by the ancients, and by Avicenna, RiEDLiN, MoNDSHEiN, Van Swieten, and QuARiN. The extract as prepared (F. 156.), and combined, by Backer, is, upon the whole, the best mode of exhibiting it. It should be fresh, and its effects carefully watched. If it have employed it more than any other medicine in the acute forms of the disease, after the exhi- bition of mercurials, sometimes in very large doses, in the form of electuary, and variously associated. In these, as well as in other states of the disease, it often proves more efficacious than its purgative or diuretic operation imlicates. Either alone, or with the biborate of soda, it often succeeds in removing obstructions from the liver, and accumulations of bile from the hepatic ducts, after other medicines had been directed with this intention to no purpose. It may be given in as large doses as Dr. Thomson and Dr. Good have stated (?vj. and 5J.); but two or three drachms twice or thrice in the day, and persisted in for several days, is preferable. It is apt to be nauseated by the patient ; in which case the elec- tuary should be prepared with syrup of ginger, to which the oleum anisi, and a little tincture or powder of capsicum, may be added in addition to the other substances with which it may be requisite to conjoin it. In .some cases, sulphur will be added to it with advantage ; in others, guaiacum, ammoniacum, or squills; and in some the inspissated juice of the sambucus nigra, and extract of taraxacum. Its association with sul~ phitr was much confided in by Piderit; with biborate of soda by Grant, Quarin, and most Continental writers; with cawbnge, intimately tri- turated together, by Sala and others ; with squills by Bang ; and with ;a/(//), by Demiam. Of other purgatives it is unnecessary to take any particular notice. The neutral salts, particularly the sul- phates, are often of great benefit, both as laxatives and as diuretics, when prescribed wilh other pre- parations possessed of the latter properties. The iris forenlina, i. pseuilacorus, i. vulgaris, i. versi- color, and i. fatidissima, have severally been em- ployed as hydragogue cathartics in dropsies, in the form of the expressed j nice, or powder, infusion and decoction of the roots, and have received the commendations of Plater, Eller, Duverney, and SpiNDLER. 71. C, Bif diuretics. — This class of medicines produce restlessness and anxiety, it ought to be i is, perhaps, more than any other, empirically pre relinquished. The following is Bacher's recipe for the pills known by his name : — cribed in dropsies, owing chiefly to the imperfect state of our knowledge of, and in some measure 622 DROPSY — Remarks on lo waat of attention to, the mode of their oper- ation. From researches into this subject, in which I was engaged during the years 1819, 1820, and 1821, — part of the results of wliich, particularly in respect of diuretics*, was published in the Medical and FhysicaL Journal, for July and August, 1821, p. 112—115. — it was there shown, that these substances act — i. Upon the digest- ive canal, and on the nerves nf organic life, ex- citing or otherwise modifying, according to the nature of their impremnn, the functions of these viscera, und hy sympaLhii the functions of those intimatelu related to them : — ii. By absorption, and by their action on the lymphatic, capillary, and venous systems, both during and subsequently to their passage into the blood, — a. in exciting the extreme vessels, or restoring their tone, and thereby promoting their circulating functions ; h. in exciting the absorbent system, and gradu- ally removing impediments in the way of the lymphatic and venous circulation, or in pro- ducing a deobstruent operation ; c. in develop- ing constitutional power, increasing the vital cohesion of the soft solids, and enabling them to yield the requisite support to the capillaries and to the exhaling vessels and pores : — iii. By their action on the kidiieqs, and other secreting and excreting viscera, through the medium of the circulating Jiuid, — a. in directly stimulating the kidneys, by one or more of tlieir constituents, during their presence in the blood and elimination with the urine, and in exciting them to excrete the watery parts of the blood ; b. in thereby diminishing the quantity of the watery parts of the blood, and promoting the absorption of fluid from the cavities or tissues in which it super- abounds. It will be seen from the above, that substances which have had a diuretic action ascribed to them, operate — 1st, in a more or less indirect manner, whether their influence be mainly exerted upon the prima via, or upon the circulating systems ^nd viscera by means of absorption ; and, 2d, in a direct manner, during their circulation through the kidneys, and elimi- nation from tiie blood by their agency. Con- formably with these views, I proceed to notice the use of this class of medicines in dropsies. 72. 1st. Indirect diuretics. — (u) Titose which act chiefly upon the digestive canal. Under tiiis head may be comprised most of the tonic and .stimulating medicines already noticed, and which, by increasing tiie organic nervous energy, and promoting the digestive and assimilating func- tions, also assist the circulating and eliminat- ing actions, particularly ,in the indirect manner already noticed.— (6) These effects are both ac- celerated and heightened by associating these medicines with substances ichich, being absorbed into the circulation, e.icite the extreme vessels, re- store their tone, and promote a healthy circulation through them. Of the-e last, some mention has been already made under the head of deobstrtienls * 'flic former of tliesp memoirs contained the first at- tem))t that had lieen made to determine tlie precise way in which diuretics operate, and to arrange their effects. In that article, as well as in tlie/,o/)(foH McUiJnl Ilcjiu- silury tor May, 1822, p. .380, ,>H1., will be tbund the ar. rangement of the action of diuretics given above, drawn in a more precise and dct.iiled manner than my limits will here allow me. 1 state this, because similar arranxe- ments have been put foith at much later i)eriods than the last of tric'se, but without tcfcience to the original sources now rcfurrcd to. Medicines for — Diuretics. {§ 63 — 66.). Mercurials, when used as diuretics, operate chiefly in this manner, unless carried to tile extent of injuring the constitutional powers, and of hazarding the production of their peculiar cachexia. Foxglove seems to act chiefly in this way, as well as in lowering the frequency and strength of the heart's action, thereby diminish- ing effusion, and determining the balance of action in favour of the absorbing vessels. Its efltcts are promoted by combining it with substances which, being received into the circulation, act in a similar manner with it, or in one of tiie modes mentioned in the second order of the above classi- fication (§71.); more particularly with the blue pill, or minute doses of the bichloride of mercury ; with the nitric or nitro-hydro-chloric acids, in broken-down constitutions, or where mercury has been already employed ; with the spiritus ajtheris nitrici, or liquor ammoniaj acetatis ; with the bitartrate of potash and biborateof soda,or wiih colchicuin and the tinctura camphoras composita (F. 195. 395. 400.599. 627. 859.). The diu- retic operation of digitalis is most certain after depletions and alvine evacuations in the more acute states of dropsy, in the atonic forms of the disease, and in the com]dicalions with legions of the heart and lungs. The preparations of this plant necessarily depend for their etHcacy upon the period at which they are gathered, and the manner of drying them. As soon as the leaves or powder lose the green colour, they also lose their active properties. Digitalis was much re- commended by SciIIEMANN, WiTIIEUiNG, DaR- wiN, I.Warren, Dick, Odier, IIeusinger, and many others ; and it still retains its reputation, particularly in hydrothorax. Ferriar prescribed it with cream of tartar ; Langenbeck, with opium ; and Beddoes, Ackeusiann, Knaus, and Leit- soM, with calomel and opium. The addition of small doses of this last promotes its operation, and partially counteracts any unpleasant efi'ect it may produce, — a fact wh'ch I have heard confirmed by the extensive and discriminating experience of Sir II. Halford. 'I'he tinctura opii composita (F. 729.) is perhaps the most eligible preparation for this purpose. The de- coctum senegce has also a diuretic efl^ect, and evidently from its influence on the capillary cir- culation. It was used by Mili.man ; but is applicable chiefly to the atonic states of the disease. Oberteuffer conjoined it with cream of tartar, which is, I believe, the best way of giving it. Squills and ammoniacum (§ 78.) seam to act, partly at least, in the present mode ; but, of the former, more particular notice will be taken in the sequel. 73. (c) Diuretics which excite the ahsorbing vessels, and remove impediments to the lymphatic and venous circulation, are manifestly few in num- ber. It is probable that several of those already noticed, and usually termed deobstruents, operate partly in this manner; but we liavc no satisfac- tory proofs that they do so act, as to any of them, excepting the preparations of iodine, o( which men- tion has already been made (§ 64.). 'i'hesc evi- dently excite the absorbing vessels, and produce a diuretic action in this way, particularly when given in full doses. The carbonates of the alkalies, the pure fixed alkalies, ammoniacum, mercurials, &c., may probably also act partly in the same manner. DROPSY — Remarks on Medicints for — Diuittrics 623 74. ((/) Tliere are various substances which exert a diuretic operation througii the niediutn of the circulation, bi^ deielopi)ig coiistilutimuit power, increasing the vital coliesion of the sojt solids, and thereby restraining morbid exhalation or effusion. In this manner, all the tonic and astringent mineral salts may indirectly increase the secretion of urine, as well as the mineral and some of the vegetable acids. Lentin, Tissot, AViNTiuNGiiAM, and others, prescribed the mine- ral acids; Reusner directed the sulphuric acid, with infusion of the bark or flowers of the sani- bucus nigra: and Bang, the tartaric acid with squills. Citric acid and lime juice have been found efficacious in the complication of dropsy with scurvy; and I have seen benefit derived from ])iirol igneous acid. Sulphate of iron, and sulphate of quinine with sulphuric acid, will also prove of service in the asthenic states of the dis- ease, by operating in this manner. Eut these are, upon the whole, inferior to the ferri potassio- tartras, which, whilst it increases the tonicity of the extreme vessels and soft solids, produces a very manifest diuretic action. 75. 2d. Direct diuretics. — Substances ichich stimulate the kidneys through the 7nedium of the cir- culating Jiuid are the only direct diuretics. Some of these may be administered by the stomach ; olliers by the cutaneous surface ; particularly after the cuticle has been removed — according to the endermic method. I'ut there are very few of them which act in this way solely ; nearly all of them producing more or less effect upon the organic nervous system, on the vascular systems, and on the vital cohesion of the tissues, during their pre- sence in the blood. It will be found that such of them as excite the kidneys most remarkably are eliminated from the blood by these organs, and it may be therefore presumed that their influence is principally or specifically exerted upon them. It will be manifest, that substances which increase the proper function of the kidneys will produce the double effect above stated (^ iii. a. h.), of excreting the watery parts of the blood, of dimi- nishing excrementitious plethora, and thereby increasing the absorption of fluid from the situ- ations where it superabounds. I have long since shown (L(»ui. Med. and Phys. Journ. for July, 1821.) that certain diuretics, and these the most active, are conveyed into the circulation, and to the kidneys, unchanged ; and Dr. Paris has con- tended that various other diuretics are decom- posed or digested, and operate by means of certain of their active constituents. This seems very the kidneys, in the asthenic states ; lower inflam- matory action, and prevent the consecutive eflusion in the acute forms of the disease. 'I'he oil, tlie active principle, may be taken as prescribed in the Appendix (F. 149. lt)9. 681.), may be exhibited in clvsters, and employeil externally in the form of liniment or epithem. Its smell may be covered by the cajeput or lemon oils, which also are direct diuretics ; and the unpleasant eructations it occa- sions, in great measure prevented by giving it with magnesia, or by taking this substance immediately after it. In the asthenic states of dropsy, ]\Ionu- sciiEiN and Riland combined it with sulphur, in the form of balsamum sulpliuris (F. 22.). The former of these writers also recommended the infusion of pine tops (F. 51.), which is an excellent diuretic vehicle for the saline sub- stances and spirituous tinctures belonging to this class of remedies (F. 827.). — ^. The various balsams (F. 485 — 487. 570.) are especially indi- cated in the more passive states of dropsy, and when the kidneyssetm to be diseased. The Peru- vian balsam was much praised by De Haen ; but copaiba is equally efficacious. 1 hese, as well as the terebinthinates, may be given in the form of pill with magnesia, or with the alkalies. — ■y. The preparations of juniper berries also act directly upon the kidneys, by means of their essential oil. They are most appropriate in the sub-acute and asthenic cases, and are excellent adjuncts to other diuretics (F. 194.). The infu- sion (F. 235, 236.) is a suitable vehicle for various substances appertaining to this class (F. 397.399.). RivEiiius prescribed it with small doses of sul- phuric acid ; Bang, with cincliona ; and Percival, with camphor. — J. Cajuput oil, oil of aniseed, and others of the essential oils, possess diuretic pro- perties, and may be used both internally and externally, as adjuvants of other substances be- longing to this class of medicines, especially in the more asthenic states of the disease. The oil of aniseed is very serviceable in effusion con- nected with asthma, bronchitis, or lesions of the lungs, and with affections of the heart ; and is a useful adjunct to colchicum, digitalis, camphor, &c. 77. (b) The alkalies and thejr salts are diuretic in small or moderate doses, and are appropriate to most cases of the disease. Liquor potassie has been already noticed as serviceable in con- junction with other deobstruents and diuretics (§ 64.). It evidently neutralises the acid in the stomach, and is absorbed into the circulation. The carbonates and carbonates of both potash and ;oda are more generally useful, especially in the probable as to some, but does not admit of proof complication with lesions of the liver, kidneys. in respect of many of them. That the balsams, juniper benies, and cubebs, excite tlie kidneys by means chiefly of their essential oil, is very evident ; but that colchicum and squills are diuretic, owing to the separation of veratria and scillitina, is merely a matter of opinion. 76. (a) a. Oil of turpentine, and substances containing it, as the Canadian, the Chian, the Venetian, and the common turpentines, are the most energetic and direct diuretics ; and, in the endless forms of combining and exhibiting them, admit, in the hands of the practitioner who is acquainted with their properties and effects, of very general application : as they excite the tonicity of the extreme vessels and soil solids, during their presence in the circulation ; stimulate and uterus, and when judiciously combined. They are also absorbed, and are decomposed by theacid (thehvdrochloric, as shownby Dr. Prout) of the stomach. But as the quantity of this acid which the stomach contains at any time is but small, the change can be effected only on a por- tion of the salt, if it be given in full doses. A similar change is most probably produced upon some of the vegetable acid salts in the stomach by the same agent, as Dr. Paris has contended. The citrates or tartrates are useful and pleasant. They may be taken in bitter or diuretic infusions, whilst the fixed air is being disengagetl by the action of the acid on the bicarbonates. '1 he most certain, however, is the cream of tartar, in doses that act not energetically on the bowels. When pre- 624 DROPSY — Remarks on Medicines for — Diuretics. scribed in order to obtain its purgative effect (§ 70.), it frequently also excites the kidneys; and, with biborate of soda it is sufficiently soluble to be given in the form of draught or mixture, with diuretic infusions. It is also advautageously conjoined with the ferri potassio-tartras and other tonics in the asthenic statues of the disease ; and is most serviceable in ascites and anasarca. For- mulfE 57. 397. 588. 590. 599. 628. are the best modes of exhibiting it as a diuretic. Acetate of pntassa and acetate of animonia may also be ex- hibited with tonic or bitter infusions ( F. 196. 386.), and with either tiie decoction, spirit, or infusion of tiie various diuretics about to be no- ticed (F. 194. 358. 395. 400.). The decoction and the extract of taraxacum are excellent ad- juvants of all the foregoing salts, as well as of the carbonates. Tiiey have been much praised by BoNET, Bang, and J. P. Fuank, for their de- obstruent and diuretic operation (F. 390 — 392.). Nitrate of potash has already been noticed among antiphlogistic remedies (^ 55.). It is readily absorbed into the circulation ; and during its pre- sence in the blood and elimination by the kidneys, it excites tiie capillary vessels, and stimulates these organs. It is indicated in all the acute states of the disease ; and in these, after de- pletions, as well as in the atonic forms, it may be given in tonic infusions and decoctions, witii diuretic tinctures or spirits (F. 399. 401. 406. 588. 591. 599.). All the neutral salts, par- ticularly the s»//)/iutes, and the bisulphate of potash, are absorbed, and excite the kidneys and extreme vessels, when taken in small doses, or much diluted. They are indicated chiefly in the acute or sub-acute varieties of dropsy, and in their complication with organic change in the liver. They admit of the same forms of exhibition as those more particularly mentioned, and are assisted in their operation by the same adjuncts. 78. (c-) The action of the foregoing on the kid- neys is well ascertained ; but there are several other substances which are as energetic as they, but whose mode of operation is not so well under- stood. That the diuretics now about to be no- ticed excite the kidneys by means either of one or more of their constituent principles, seems very probable; but they also act in a similar manner upon the tissues to which they are immediately applied ; and, when taken in small or moderate doses, so as to be absorbed into the circulation, they manifestly stimulate the capillary vessels, or impart more or less tone to them. Hence they are most beneficial in the atonic forms of the disease ; or in th'e sthenic and plethoric states, after evacuations. Of this class of diuretics, squill is the most generally used. Frize, Stoli,, and Zlviam, advise it to be prescribed with cau- tion. It is commonly given with calomel and blue pill, in doses of a grain, gradually increased to five or six ; or with the neutral salts, in the form of vinegar, tincture, or oxymel. Culi.kn pre- scribed it with the bichloride of mercury ; Lang- iiAus, Home, Langk, and Muoughton, wiih nitre, rhubarb, cream of tartar, iS:c. ; Tissor, with camphor ; Wii.licii, with taitar emetic ; 15i;u- •jUANo, willi the -Ethiops mineral ; and Kneiiki, and Lkakh, with opium. When it irritates the stomach or bowels, in conjunction with mer- curials or saline substances, the adilition of opium is reriuisite, if the propriety of continuing the combination be still manifest ; but, under such cir- cumstances, it is seldom productive of benefit ; and , in cases where vascular plethora or sthenic action is present, it is more injurious than beneficial. The preparations of it in the British JMiarma- copceias are the best modes of exhibiting it; and these may be combined as directed in the Ap- pendix (F. 196. 399. 533. 552. 627. 781. 893.). This substance is indicated principally in the atonic states of effusion, when the urine is high-coloured and scanty (Blackali.), and it acts more ener- getically upon the extreme vessels than on the kidneys. 79. Genista, or spartium scopariuni, the com- mon broom, in the form of decoction, has been prescribed by most writers on dropsies (F. 95.) ; as well as the sarsaparilla, various species of the smilax evidently possessing diuretic properties. Gratiola officinalis, or hedge hiissop, in the form of inspissated juice or decoction, was recom- mended by DuvERNEY and Stoerck in dropsy consequent upon scarlatina, both as a purge and as a diuretic, in small doses. The pyrola umbel- lata has b en employed by Rudolph and Somer- VII, LE. The former combined it with tartar emetic and (ipium. Dr. Somerville, Dr. Beati y, and Dr. Bigelow have adduced strong evidence in favour of its diuretic operation. The decoction is the most active form of exhibiting it. It seems most elficacious in the hepatic complications of dropsy. In addition to these, the infusions of the ballota lanata and of the b. suaveolens have been prescribed by Reiimann ; the decoction of the petroselinum, or parsley, by Riciiter ; the inspissated juice of the rhapliaiiusrhaphanistrum, by Gruling and others; the expressed juice or infusion of charefolium, or 7nusk chervil, with nitre ; the clieuopodium anthelminticum and c. ainbrosioides, by Lentin ; the cichoriuni verru- carium and chondrilla juncea (species of sitccori/), by Spindler. Several species of saponaria, the angelica archangelica, the leiisticum, or lovage, the siiim berida, sassafras, sweet-fennel, asparagus, and various other plants, have been recommended by authors, in the form either of infusion, decoc- tion, or of the expressed juice. 80. Colchicuni was much used by Stojjiick, Boeiimer, Erhmann, De Meza, and Obek- TEUFFER, as a diuretic. It possesses much of this property, when it does not irritate the sto- mach or bowels. Hautesierk justly considers it inferior to squills. In the acute states of dropsy, it is best given with mercurials in pow- der ; but, in asthenic cases, it is most advantage- ously conjoined with the warmer diuretics, with tonic infusions, or with preparations containing camphor or ammonia (see F. 194. 395.), or with large doses of the alkaline carbonates, particu- larly in the gouty or rheumatic diathesis. Stoerck combined it with the infusion of rhubarb ; and Oberteuffer, with cream of tartar, juniper, and guaiacum. The diuretic action of rinibavb is deserving of notice. When given either in small doses, or in infusion as a vehicle for other substances of this nature, — as the saline diuretics and the preparations of squills, of juni- per, or of colchicum, — it is a useful medicine in dropsies. It was employed in this way by Weul- noF, Fordyoe, Bang, and Rush. The diosina crenata also acts upon the kidneys. Its infu- sion may be used in similar cascj and states of DROPSY — REiiAnKs ox combination to those in which rhubarb is np- propriale (see F. '231. 396.). The marclKditia heinisphericii, or liverwort, has been rcceuily employed with much benefit by Dr. Shoutt, in cases where other remedies liad been employed wiiiioul advantage. He has, however, found but little service from its internal use, and has employed it chiefly externally as a poultice. For tills puipose it is first boiled, afterwards beat into a pulp, and mixed with as much linseed meal as will bring it to the consistence of a poultice, which is spread upon flannel, and applied warm over the seat of the effusion, repeating the poultice every twelve hours, until the accumulation of water is removed. It produces " copious perspir- ation, and at the same time acts powerfully on the kidneys." The sinking sensation it sometimes occasions is relieved by the spirilus letheris niirici. The effects of this application are stated to be increased by allowing the patient warm and nourishing diluents, and beef tea, Sec. Dr. Shortt believes that this application will be found to succeed in many cases where the kid- neys are affected. The bark of the root of ci- chorea ruce»itisu cniquifolia has been lately em- ployed by JNl. Lemasson. This bark furnishes a crystullisable principle, of a bitter and astrin- gent taste, soluble in water and alcohol, in which the virtues of the plant reside. A decoction of two drachms of the bark in eight ounces of water is divided into two doses, which are taken with an interval of two hours. This generally affects the kidneys, and the action continues for some days. As soon as its action begins to diminish, tilt same doses are repeated. It is suitable only to the asthenic states of the disease. 81. Cantharides have been recommended in dropsies, on account of their diuretic action, by HippocuATis, Galen, Dioscorides, and others among the ancients ; and by linisDANE, Farr, and several modern writers. Hoffmann, Wehl- noFF, and Hcfeland, gave them with cream of | tartar, the tartaric acid, or nitrate of potash, and with camphor; and Tulpius in the form of tincture with spiritus aitheris nitrici, cardamoms, &c. They should be exhibited with great cau- tion, and only in the most asthenic forms of the disease. Dr. Groenevei.t, a licentiate of the College of Physicians, was committed to Newgate in 1693, by the president and censors, on the plea of mala praxis for prescribing them in diseases of the urinary organs, although numerous autho- rities in support of the practice could have been adduced. Cantharides act upon the kidneys, and upon the capillary system, cliiefly from the ab- sorption of their active principle, which has been termed cantharii'en. 82. The rft/(er»- also act upon the kidneys, es- pecially the spiritus atheris nitrici, and spiritus atheris sulphurici. They are useful chiefly as adjuvants of other diuretics. The sweet spirit of nitre is, however, an active diuretic when judici- ously combined, or when given while the patient can take exercise in the open air (see F. 169. 195, 196. 397.). It may be remarked gene- rally respecting the use of diuretics, that the ad- dition of small doses of opium, or of the tinctura opii comp. (F. 728.) as advised by Hufeland and Paris ; and of out-door exercise, as di- rected by TissoT ; will much augment their ope- ration. Rlany of the Continental writers ad- VOL. I. Medicines recommended in. 625 vise them to be taken in malt liquors — a vehicle which certainly promotes their action, and is not inappropriate in the asthenic forms of the disease. It -is in these forms principally that J3r. Rush conceived that any advantage was derived from this class of medicines; and Deckers, Frize, ]\Iursinna, and jMagennis, seem to have been of nearly the same opinion, they having recom- mended them to be given with tonics. 83. D. Emetics have been employed by several authors, particularly by Sydenham, Lillie, J. P. Frank, and Percival, chiefly after other medicines had failed ; and some advantage has been said to have accrued from them. Squills are the emetic most commonly employed, which probably are partially absorbed, and act also as a diuietic. Several writers have mentioned in- stances of the disappearance of dropsy after spontaneous vomiting ; and have looked upon this circumstance as an indication for exhibiting emetics. They are scarcely ever used in modern practice, and probably the cases are few in which they are indicated. I have seen, however, in- stances wherein obstinate vomiting supervened apparently upon the medicines which had been exhibited as diuretics, particularly digitalis, squills, and colchicuni ; but the good effect that appeared in these cases was attributable to the preceding course of medicine, and to the accumulated eft'ecis of these substances upon the system. 84. E. Diaphoretics and sudorijics have been re- commended by most writers. But in the majority of casts, particularly in the acute and plethoric, there is great difficulty in producing perspiration ; the means which are employed, unless they be of a contra-stimulant or relaxing nature, tending rather to excite the vascularsystem, and to increase the morbid exhalation, than to relax the surface, and produce diaphoresis. Tlie potassio-tartraie of antiinonii, Dover's powder, and s]nritustrtheris nitrici, are, perhaps, the best sudoriflcs that can be em- ployed; but the former should be given, in the acute cases, so as to occasion some degiee of nausea ; and the last named, in asthenic cases. Dover's powder vvas much confided in by INIudge, and guaicicum by Chajiberlaine and Bruck- MANN. As to the propriety of resorting to warm bathing, in order to induce perspiration, much dif- ference of opinion has existed. Tepid baths were recommended by Stoll and Frank, in the acute states of the disease, and vapour baths by Darbey and others. 85. F. MiJiera/ leaders, if judiciously directed and brought in aid of medicine, are often productive of much benefit. Zacutus Lusitanus recommends the internal use of. sea water ; and there can be no doubt that it will prove beneficial if persisted in, particularly in the sub-acute and atonic states of the disease. In the more asthenic forms of dropsy, the Bath waters, the mineral waters of Carlsbad, Ems, Marienbud, and Vichi/, and those of !ieltzer, are often serviceable. In cases depending chiefly upon obstruction, and where an aperient action is desired, the waters of Harrogate Moffat, and Leamington* may be tried. * Dr. Loudon, of Leamington, favoured the author with the results of an extensive series of experiments made to ascertain the composition of these waters, 'ihere are eleven springs of mineral water, seven of wliich are purely saline, tlirce sulphureous, and one chalybeate. The saline contains '098 cubic inches of oxyyen, Tb',') of azote, 3 156 of carbonic acid, 3l"4J5 grains of sulphate of Ss 626 DROPSY — Remarks on Medicines recommended in. 86. G. The combination of two or more of the jilans now mentioned is often necessary. But this must depend entirely upon the nature of the case in respect of vital energy, and of visceral complication. Certain, however, of the above classes of measures are incompatible one with the other; as purgatives with diaphoretics, and ca- thartics with diuretics. But a moderate purgative action will often not materially prevent the opera- tion of medicines on either the skin or kidneys ; and some purgatives will even act sensibly upon both the bowels and urinary organs, particularly cream of tartar. Deobstruenls, emetics, and ex- ternal applications, often aid the operation of both diaphoretics and diuretics. Various substances, especially those of vegetable origin, are even more diuretic when applied in the form of poultice, or fomentation, or liniment, to the cutaneous surface, than when taken into the stomach, probably owing to the alteration or digestion they undergo in the alimentary canal, by which they partially lose their activity. Several of the older writers insisted much upon the external use of medicines in this disease, evidently from having witnessed instances of the success of the practice. 87. Diet. — Jn respect of diet, little need be added. It should entirely depend upon the form of the disease — be spare and cooling in the acute cases, and light and nourishing in the chronic or asthenic ; and directed with reference to the vis- ceral complication. Tiie patient should not be restricted from drink. Under the head " Potus," in the Appendix, will be found formula; for several beverages, which may be reduced, modified, or rendered agreeable, as circumstances may requite such changes. Weak Hollands or gin-punch, or cyder, perry, or soda water, may also be allowed, according to the habits of the patient. Spruce beer is, perhaps, the best. BiBLioG. AND Refer. — Hippocrates, Aphorism. 3—7 ; Ui^i youa-m, i. ii. ; et Opera, passim — Aretieus, Chronic. ]. ii. ch. t. — Galcn, Loc. Atl'ect. 1. v. 7. ; et Symp. Caus. 1. iii. 8. — Cxliiis Aurclianus, Morb. Chroi). 1. iii. cap. 8. — Scribonius I.argi/s, De Coinp. Medicament, tbl. Paris, J528, sect. 126. e'ditio princeps. — Mesne, Sen. sect. i. cap. 13. — Avicenna, Ca.i\on. iii. fen. xiv. tr. iv. cap. iv. — Fernelius, Consil. xxxii. et seq. — Forestus, 1. xix. obs. 14— 39. — P/a0 grains of cliloride of magnesium, in the Imperial pint. The suljjhureous wells, liesides these ingredients, contain 3 620 inches of siilpluiretled hydro- gen. The chalybeate differs in no way from tiie saline, but in containing 8'.080 grains of bisilic.ile of iron. 'J'hey are all, therefore, jiurgativc waters. The dose is a pint daily or every oilier day ; and a course of six weeli generally ' ■ ■• ■• •• ■■ ■ ' i i,_,. also, have watem Acad, of Scien. Paris, 1701. 181., et 1703, 181.— Bag. livi, De Pr. Morb. 1. i. c. 9. — Littre. Mem. Acad. Scien. Paris, 1703, p.m. ; et Ibid. 1707, p. 667. ; et An Hydrope Venjesectio i* Paris, 1714. — Erastus, Disput. vol. iv. p. i>m. — Blankarcl, Collect. Med. Phys. cent. v. n. 25.— Schroeder, Pharmacopceia, 1. iv. p. (;4. — M. Tiling, Ne- phrologia. Fr, 1719, 12. — I'atcr, Hepar in Hyd.Saepiui insons, &c. Witteb. 1720. — Bianchi, Hist. Hepatis, pur. ii. cap. 5. — Blackmore, On the Dropsy, &c. Lond. 8vo. 1727. — Morgagni, De Caus. Morb. epist. xxiv. art. 18., epist. xxxviii F. Hajfrniiun, Opera, Supp. ii. 2. —Hclivig, Observat. 83. — Dover's Legacy, p. 32. — Schulze, De Venaesectioiie in Hydropicis. Halte, 17^6. — Gilehrist, Use of Sea Voyages, &c. p.88, — Griilin^^, cent. i. obs. 85., cent. ii. obs. 56., cent. iv. obs. 73. — Oliver, Philos.Trans- act. vol. xlix. par. i, p. 46 Laurence, De Hydrope, 12ino. Lond. 1756. — Hitler, De Purgantibus Validis et Opio. in Hydr. Vien. 1754 Tissot, De Variolis, Apo- plexia, et Hydrope in Sandifort's Thesaurus, &c. vol. ii. — A. Stocrclc, De RaJ. Colehici Autum. 8vo. Vindob. 1763.; et Ann. 'Bled. i. p. 82 BUchner, De Diveisa Hydr. Medendi Methodo. Halse, 1766. — Juncker, De Aq. Hydr. Vacuatione prudenti, &c. Halae, 1768 Quarin, Animadversiones, Cip. 8. p. 191, ct passim. — I). Monro, Essay en the Dropsy and its ditterent Species. Lond. YiQb. — De Haen, Rat. Med. iv. p. 77. et seq., V. p. 38. et seq.,vi.\}. 61. et seq. — Macl^enzie, Med. Ob- serv. and Inquir. vol. ii. p. 287. — Ba/ier, Trans, of Coll. of Phys. vol. ii. p. 235. — Stoerek, Ann. Med. i. p. 121.,' ii. p. 177 Lentin, Memorab. m. Beobach. 97. 100, &c. 15eobach.der Epid. p. 93., etUeytriige, iic. p. 115. — Vallisncri, Opp. vol. iii. p. 269.— Z). Lysuns, Essays on Fevers, Dropsies, and on the EHt;cts of Calomel, &c. 8vo. Bath, 1772. — liibe, Schwed. Abhandl. b. xiv. p. 47. — Bergius, in Ibid. b. xxiii. p. 121 — Fotiquet, Kecueil, &c. p. 80. et 293. — Gardane, Gazette de Sante, p. 254—279. — Brocklesby, Econ. and Med. Observ. p. 278. — Odier, Man. de Med. Prat. p. 214 — H. Wilkes, Essay on the Drofisy, 8vo. Lond. 1781. — I'an Sivieien, ad \ 1240. — Hautcsierck, Recueil, vol. ii. p. 308. oiiO.—Piderit, Pract. Aiinalen, st. i. p. 9l.— lVerlho/, Opera, vol. iii. p. 699. — Lange, Miscell. Verit. vol. i. p. 6/ — Ehrmann, DeCol- chico Autumnale. Basil, 1772 — Backer, Exposit. des diff. Movens usites dans le Traitein. des Hydr. Paris, 1771. — Fuller, Pharmacop. Exterap. p. 212 Lieuta.ltl, Hist. Anat. 1. i., et I. ii. var. ^ — Baeher, Recherches sur les Maladies Chroniques, paiticul. sur les Hyd. &c. 8<,o. Paris, \116.—Bang, in Act. Reg. Soc. Haun. vol. i. p. 25?., ct vol. ii. p. 64. — Burrowes, in Trans, of Irish Aciiit, vol. iv. No. 83. — Frank in Comment. Soc. Scien. Go( t. vol. vii. p.64. — De Mexn, in Collect. Soc. Med. Hafn. vol. i. No. 7.; et Act. Reg. Soc. Haun. ii. p. 266 — Lillic, in Ibid. vol. i. p. 294. — Aaskow, in Ibid. vol. i — Hewsoyi, Experimental Inquiries, &c. v. ; Edin.Med.Comm. vol.ii:. p. 42. Furdt/ce, Fragmenta Chiriirg. et Medica, 8v( . Lond. 1784. — Portal, Anat. Medicale, vol. iv. p. 118 — Bader, Observ. 44. — Home, Clinical. Exp. Observ. and Inq. 8vo. Edin. 1781. — F.Miiman, De Natura Hydropis ejusque Curatione. IjOnd. 1779. 8vo. — lMtha)ii,\'\n\oA Trans. 1779. 54. — ll'ithering. On Foxglove and its Me- dical Uses, with Remarks on Dropsies, &c. bvo. Bii- mingh. 1785. — Berends, De Reined, .'^ntihydr. maxime celebrat. Laude el Auctoritate. Fran. 1804. — Boehmei , De Secura Hydr. Curandi Uatione. Halie, 1779 Greit- lich. Cur. Hydr. Nova Methodus, 8vo. Fran. 1781. — Murray, Hydr. Curt. &c. Ujis. 1785. — Garden, in Duti- can's Med. Comment, vol. iii. p. 330. — Musgrave, in Ibid, vol. iv. p. 387., vol. v. p. 194. 415 — Ring, in Uiid, vol. viii. p. 83. — Grieve, in Ibid. vol. ix. p. 286 — Darb,y, in Ibid, vol. ix. p. 315. — Broughton, in Ibid. vol. ix. ii. 368., et vol. xix. p. 79.— X)?cA, in Ibid. vol. x. p. WL—Bennct, in Ibid. vol. xli. p. 15 T. Hamilton,m Ibid. vol. xii. p. 370. (Advises cyder.) — Latvson, in Ibid. vol. xiii. p. 299. — Garnet, in Ibid. vol. xvi. p. 271. — iViAop^ic, in Ibid. vol. xviii. p. 138. — Elliot, in Ibid. vol. xvii. p. 46 Gordon, in Ibid. vol. xviii. p. 75. — Langgulh, De Mer- curio dulci jiotenti^simo Hydr. domitore. Vit. 1780. — Hiclilcr, Med. ami Chirurg. Bemerkuiig. p. 278 — Ciotti, in Giornale di IMcdiciiia, 1782. — Colin, De Lactuca Virosa, 8vo. Vien. 1780. ; and Lond. Med. Journ. vol. i. p. 2tJ3. Wright, Lond. Med. Journ. vol. i. p. 266. ; et Ibid. vol. x. )). 149. — Camper, Mem. Sue. Koy. de Mi'd.t. vii. 46. — Mason, Med. Observ. and Inquir. vol. vi. p. 19. — E. Dar win, Med. Trans, of Coll. of Phys. vol. iii. p. 255. 448. — Mudge, in Ibid. vol. ii.— i'. Knight, in Ibid. vol. iii.]).,'>fi '. G. Pearson, in Ibid. vol. iii. p. 316. — Stall, Rat. Med. vol. i. p. 295., vol. ii. p. 158.378., vol. iii. p. 5. 132.377.300., vol. vii. p. 340. ; et Pra-lect. i. 52. — 7'h. Fotuler, Mcii. Rep. of the Effects of Tobacco in the Cure of Dropsies. &c. 8vo. Lond. 1785. — C. Darwin, Lond. Med. Journ, vol. vi. p. B5.— J. Warren, in Ibid, vol.vi. p. 145. — Cook, in Ibid. vol. vii. p. 5i.—Hatl,u\ Ibid. vol. vii. p. \hl. -Stark, Observ. Clinic. — Sckwenkcrs, Uebcr Wassersucht, von Sclimalz, Svo. Dresd. 1787.- Mexler, Vim der Wasser- directed. Sin.'li portions of iodine and brome, i sucbt, Bvo. Ului. mi. -Bush, Med. Observ .^nd Inq. been discovered by Professor DAUUiiNY in these vol. ii. p. 161 .-Brisbane, Select Cases, &c. p. ]3—Si»i, . I in Phila. Med. Museum, vol. i. p. 316 — J. P. Iraitk, Dp DROPSY OF THE ABDOMEN— Causes of. 627 viscera, with which it is connected, and of the absorbent glands it incloses, the numerous sources of disorder to which these organs are exposed, the great number and weakness of the veins, which transmit their blood to the portal vessels, and the absence of valves from them, in some measure account for the fre'iuent accumulatiou of fluid in this cavity. Ascites may arise from any of the causes enumerated above (§ 8, 9.), and at any age. Cajiper, Lee, and others, have seen it in new-born infants ; but it is most common in women and aged persons. I have observed it in children at all ages. It occurs more frequently in married than in unmarried females and girls, and is often the consequence of the distension and pressure attending pregnancy, of difficult, orinstru- mental labours, and of suppression of the puerpe- ral secretions, or of the perspiration or catamenia, or of the disappearance of this last evacuation. It arppears in both sexes from the usual causes of in- flammatory diseases, and the morbific agents to which the abdominal organs are liable, particularly the ingestion of cold fluids when the body is per- spiring, the use of spirituous liquors, cold, and moisture, and both, or moisture merely, conjoined with marsh effluvia, a poor, watery, or unwhole- some diet, or errors in diet, the drastic operation of purgatives, external injuries of the abdomen, and the suppression of accustomed secretions and discharges. 90. {b) Pre-eiisteiit disease, particularly diar- rhoea or dysentery, and sudden interruptions of tiei't.'isn, p.Sol.—LangenOec/;, in Goet.°Anz. ibl'Z, j these discharges; intestinal worms; organic le- sions of the liver and spleen, especially obstruc- tions of their venous circulation ; inflammation of the vena porta, and obliteration of one or more of its principal branches ; the suppression of chronic eruptions, or of the exanthemata, — -as scarlet fever, erysipelas, &c. — or the premature disappearance of the cutaneous aft'ection in this latter class of disorders ; acute or sub-acute pe- ritonitis; organic change of the structure of the kidneys; the rupture of cysts into the abdomen ; uterine or ovarian disease (§35.); intermittent or remittent fevers ; excessive evacuation and haemorrhages; are occasionally productive of effusion in this situation. 91. ii. Pathological States. — Ascites is, 1st, III respect of its structural relations — (a) idiopathic, or primary ; {b) consecutive, or metastatic; and (c) symptomatic, or compli- cated;— 2(1, As regards the state of vital energu and vascular action; (a) acute, or sthenic; (6) sub-acute ; and (c) chronic, passive, or asthenic. 92. A. The idiopatliic form constitutes but a small proportion of the number of cases of ascites met with in practice. Lepois and Morgagni have adduced several instances in which it ap- peared soon after drinking large quantities of cold water; and many more may be found in the works of other authors. — (a) I'he acute, or active, or even the injiammatory state, is that in which idiopathic ascites is most frequently observed. It usually occurs either in the young, the robust, or the well fed, and presents all the symptoms of the phlogistic diathesis: — the pulse is hard, thirst increased, the urine scanty ; the skin is warm, hot, or coloured, and resists more or less the pressure of the finger. It commonly pro- ceeds directly from, the external agents men Ss 2 Curand. Horn. Morb. I. iii. p. 75. ; ct 1. vi. par. i. p. 322. ; et Act. Iiistitut. Clinic. Vilnen. An. ii. p. 4.'. — Demiani, in Bii/Jiiiger's Syllog. Op. vol.iv. — IVillicli, m Baidinger's N. Mag. b. viii. p. '249 Rttdotp/i, m Ibui. b. viii. p. iio5. — l.fttso7n, in Mem. of Mt'd. of Lond. vol. i., et vol. ii. p. H5. — Farr, in Ibid. vol. ii. p. 132. — Wins/iip, in Ibid, vol. ii. p. 3C8. — Chamberlaine, in Ibid vol. iii. p. 561. 571. — Jl'rig/il, m Ibia. vol. iii. p. 563. — Walker, in Ibid. vol. v. ji. +49. — UrUckinann, in Baidinger's N. Magaz. b. vii. p. 'JD. — Baliliiiger, in Journ. x.t. p. 38. — IV. Luxmore, Address to Hydropic Patients. Lond. 179i>. — Osiander, BeobaclU. lli.—Gra/Jciigif!.srr, De Hyd. Pletliorico, Kvo. Goet. 1795.— G^^//»■/.■, in IJii,iai?i'i Ann. of .Med. for 17!«, p. 482.— fV«e, Annalen, b i. p. 9i.—Fcrriar, Med. Hist, vol. ii. No. 3. ; and on tlie Med. Properties of llie Digitalis Purp. Munich. 1799. — Percival, Kssays, &c. vol. i. p. ~j3., vol. ii. p. l.)6. — Hunt, Btitiiige znr Med. Klinik. b. ii. p. 211. — Buf/tirier, De Hyd. ejus Causis et Curat. \'iteb. 1799. — Bueckmuiiit, De Hyd. et Vasorum Lymphat. Irritabilitate. Erl. ISUU. — Thuiiiann, Annalen, ad 18UU, p. :t57. — Soemmering, De Morbis Vas. Absorbentium, p. 125. — E. Pluucquet, Sistens Hydr. cum Scarlatina co- iiicid. Exempla. Tub. 1801. — Arncmann, Annalen des Clin. Instit. heft. \.— Duciniing, in Hum's Archiv. b. iii. p. 4,X — Bieschet, .Surles Hydropisies Actives, 4to. Paris, 1812, rev. in Corvisart's JouVn. de Med. Nov. 1812, p. oUU. — II'. Hiimiltuii, On the Digitahs Purp. in Drojisy, Con. suni))tion, &c. Svo. Lond. 1^07. — Schmtdtmann, in Hiifiln lid's Journ. d. Pr. Arzneyli. b. iii. p. 522. — .duller, in luid. vol. iv. p. 473. — Scha-Jfer, in Ibid. b. vi.p. 245 Hiifehuid, in Ibid. b. iv. p. 6UU., et b. v. p. 650. — Ober- teiijer, m Ibid. b. v. p. 615. — Selig, in Ibid. b. iii. p. 291. i'isclier. in Ibid. b. iv. p. 637 dmradi, in Hufeland's Journ. d. Pr. Heilk, b. xxi. st. 1. p. 37. — Becker, in Ibid, b. xxi. St. 1. p. 22. — liiijclaiid, m Ibid. b. xxii. st. iv. p. 'Ja Bcdducs, ill Med. l-"acts and Observat. vol. v. n. 2. — Sludtleu'urth, On Dropsy, &c., 8vo. Liverp. 1808.; and Ellin. ML-d. Journ. vol. v. p. 217. — Erdmann,V>e Hydropis N'atura, et Curati me. Viteb. 18i 8. — Zeviani, in Mem. della Societa Italiana, vol. ix. n. 8. — Gaidtier de Claubry, in Journ. Gen. de MM. t. xvi. p. 6. — D. A. O. BiclUt-r, Die Spetielle Therapie, b. iii. p. 8. — Bale- man, art. Drupsy, in Hces's Cycloptedia. — Briickmann, in Horns Archiv. July, 1811, p. 70. — Hensinger, in Ibid p. 191. — Horn, in Archiv. fiir Pract. Med. b. v, p. 119. o62. — Loebel, in Hum's Archiv. Jul. 1820, p. 178. — Fauchier, in Bulletin de la Facult. de Med. a Paris, No. 3. 1812 Wells, Trans, of Soc. for Imp. uf Med. and Chi.. rurg. Knowledge, vol. iii. p. 194. — Blackall, On Dropsies, 8vo. Lond. 1813, rev. in Edin. Jled. Journ. vol.ix. p. 334. ihcrcrombie, in Edin. Med. Journ. vol. xiv. p. 163.—, Hunter, in Ibid. vol. xiv. p. 619. — Marcel, in Trans, of Med.-Chlrurg. Soc. vol. ii. p. 342. — SomerviUe, in Ibid, vol. V. p. 40. — Bostock, in Ibid. vol. x. p. 77. — Dempster, in Edin. Med. Journ. vol. xvi. p. 64. — I^ewins, in Ibid, vol. xvi. p. 359. — Graliam, in Ibid. vol. xviii. p. 225. — R Cliriatison, in ILid. >.o. 101. p. 2(i4. — J. C. Gregory, in Ibid. No. !09. et 110. p. 54.— T. Sliort, in Ibid. No. 114. p. 129. — Re/iman, in Nouv. Journ. de Med.t. v. p. 114. — Taclieron, Recherches Anat. Patliologiques, t. iii. p. 190. — Fercwal, in Dublin Hosp. Rep. vol. i. p. £93. — F. G. Geromini, Sulla Generi e Cura dell' Idrope, 8vo. Crem. 1816 — Stoker, Pathol. Observ. on Dropsy. Dub. 1823. — Crn?nptun,'m Trans, of Coll. of Pbys. of Dublin, vol. ii. p. l;",o. — Laennec, .■Vrchives Gener. de Med. t. vi. p. 619. (Ubliteration of vena cava.) — Portal, Sur la Nature et le Traitement de I'Hydropisie, 2 vols. Par. 1824. — E. Bla- siiis, in Journ. dcs Progres. des Scien. Medicales, t. xii. p. 102. Itard, in Diet, des Scien. Medicales, t. xxii. p. 375. _ P. Uai/er, in Diet, de Med. t. xi. p. 420. — J. Buuillaud,Vkt. de Med. et Chirurg. Prat. t. x. p. 174. Lemasson, in Journ. Hebdom. de Med. Oct. 1831. — Mondat, des Hydropisies et de leur Cure, 8vo. Paris. 1S18. G. Gregory, A Lecture on Dropsy, 8vo. Lond. 1819. J. Ai/re, On the Nat. and Treatment of several Forms of Dropsy, 8vo. London, 1825. — B. f enables. Clinic. Rep. on L)ropsies, Svo. Lond 1821. — M. Good, Study of Med. vol. v. p. 367. — Bright, Medical Reports, &c. vol. i. p. 78. 4to. Lond. 1827. — Hodgkin, in Med. Gazette, Jan. 1832. — Osborne, On Dropsies, &c. Svo. Dublin, 1835. HI. Dropsy OF THE Abdomen. — Syn. "As-xito? (from ao-Ko-, a leather bottle); Ascites, Auct. var ; Hydroccclia, Hydrops Abdominis, Hy- dro-abdomen, Dropsy of the Peritoneal Cavity ; Die Bauchwassersuclit, Germ. ; Ascite, Hydro- pisie Ascite, Fr.; Idropisia Ascite, Ital. 88. Defin. Heavy, tense, and fuchiating su-elting of the whole abdomen, arising from a collec- tion of uateriijluid in the cavity of the peritoneum. 89. i. Causes, &c. (a) The great extent of the peritoneum, the number and importance of the 628 DROPSY OF THE ABDOMEN — Pathology of. tioned above, or from the suppression of an accustomed discharge, or of some eruption ; and often advances rapidly, with symptoms of in- flammatory or excited action in the peritoneum, — with pain, tenderness, and sometimes tension of the abdomen ; a quick, small, hard, or wiry pulse, and suppression or diminution of all the se- cretions and excretions. Either consecutively on, or concomitantly with, these symptoms, ful- ness of the abdomen is observed, which usually augments rapidly. At first the increase is most remarkable in tiie lower part of the abdomen and iliac regions when the patient is sitting up, and the liver is not enlarged ; but it is always diffused when the patient is in the supine posture, and without any limitation or tumour. Upon exa- mining the abdomen by percussion, a somewhat dull sound is emitted, and the examination occa- sions pain. The surface of this cavity is gene- rally dry or harsh, warmer than natural, and more tender to the touch ; and fluctuation is very easily perceived by placing one hand, or the index finger, upon the anterior part of either iliac region whilst the patient is erect or sitting rip, and striking gently, at a little distance, with one of the fingers of the other hand. Accord- ing to M. Tarral, a slight effusion will be detected, and the nature of the disease made evident by this means, long before it reaches the height that can be recognised in the usual way (See Abdomen, § 16.). As the accumulation augments, all the abdominal functions are more and more disturbed ; and at last respiration be- comes difficult, from the pressure of the water upon the liver and stomach, and the impeded descent of the diaphragm ; and the patient is unable to lie down. The abdomen is now large and prominent in its upper regions, and pushes, particularly in young subjects, the ribs and car- tilages upwards. Irritability of stomach, anxiety, restlessness, want of sleep, great quickness of pulse, sometimes delirium, and ultimately coma and death, supervene, if temporary or more pro- longed relief be not obtained from treatment. 93. (/;) 'J'he sub-acute form of ascites is milder in its character and slower in progress than the foregoing; and, as well as the acute, is not an infrequent sequela of scarlet fever, and more rarely of measles ; but is, in such cases, always attended by more or less anasarca. When it thus occurs, it usually appears gradually, and commences from seven to fourteen days from the disappearance of tiie eruption, commonly with a recurrence of the febrile symptoms, quickness of pulse, dryness of skin, thirst ; loaded, white, or furred tongue ; and diminution or interruption of the secretions. All the phenomena increase more gradually, however, than in the acute; and are more readily controlled by treatment. In both these forms of ascites, the urine is scanty, often pale, and always contains more or less albumen. The face is generally cedematous in the morning, and the ancles in the evening. In other cases of the sub-acute variety, the eifusion takes place upon the disappearance of some acute disease, either attended by free discharges, or treated by copious depleticms ; frequently with febrile symptoms, and alwjiys with interruption or diminution of the natural seci-etions, the fluid parts of the blood being discharged by the in- creased determination to the peritoneum. In both the acute and sub-acute idiopathic for7ns of ascites, the accumulation of fluid arises from increased exhalation — liypcfcriiiea of the perito- neum, according to the phraseology of Rl. An- DRAL — the result either of morbidly excited vascular action, or of increased determination of blood, conjoined with a relaxed or weakened state of the exhaling vessels and pores. 94. (c) The astlienic, or yassiie, state of idio- pathic ascites is the most rare. It occurs chiefly after profuse haemorrhages and evacuations ; in chloroiic females, or shortly before puberty ; in ill-fed persons, living in cold, low, or damp localities ; and in those wlio are excluded from the solar light, or are under the influence of the depressing passions, and are employed in seden- tary occupations. It usually commences with, or is preceded by, oedema of the ancles, feet, and' legs. It proceeds very slowly ; and is attended by general debility ; cold extreinities ; a pale and sickly countenance ; a cold or cool skin ; a weak, small, quick, or fluttering pulse ; pale or loaded tongue ; diminished or vitiated appetite ; various dyspeptic symptoms; and by chlorosis or hysteria in females, amongst whom this variety is most fre- quent. The urinary secretion is more co])ious, and the bowels more irregular, and more readily acted on by purgatives, in this than in the other forms. Whilst lowering measures benefit the two pre- ceding, they aggravate this variety of the dis- ease (see § 102.). 95. B. Consecutive, or metastatic ascites, oc- curs in either of the acute or sub-acute states described above ; more frequently the latter (§93.), when there has been no suppression of the disease on which it is consequent : but when any of the febrile exanthemata have been pre- maturely driven from the surface ; or when the patient has been exposed to cold or moisture, or both, during convalescence; or if it have super- vened upon erysipelas, rheumatism, or gout ; the acute or sthenic condition is most common. It is much less acute, if it have supervened upon inflammation of some parenchyniatous or adjoin- ing organ; or if it accompany pregnancy. In other respects the characters and progress of the disease are the same as those stated in respect of the idiopathic varieties. 96. C'. The siimptomatic, or complicated, states of ascites are the most common ; and, like the primary or idiopathic, present every grade of activity and acuteness. 13ut whilst, in tlie latter, the acute and sub-acute are most fre(iuent, in the symptomatic, the asthenic state predominates ; although an irritative form of inflammation is sometimes observed to occur in the course of the disease, often, probably, owing to the irritating properties of the effused fluid, as shown above (§ 34.). Complicated ascites presents many of the organic lesions that occasion symptomatic dropsy (§ 12.) ; most commonly structural changes in the liver, or vena porta ; in the spleen ; in the mesen- tery and its glands ; in the kidneys; in the uterine organs ; and in the veins and lymphatics. The dropsical collection appears alter a longer or siiorter period of disease referrible to these organs ; commences imperceptibly, and proceeds slowly ; and generally without febrile symptoms until towards the fatal close of the disease. Ere- (juently oedema begins in the feet, and extends upwards to the knees, thighs, scrotum, or hips, DROPSY OF THE ABDOMEN — Diagnosis of. 629 and as high as the iliac regions and loins. ]5ut ascites often reaches its acir.e without any ana- sarca or oedema. As ihe accumulation increases and rises up into the epigastric region, the symp- toms become inore urgent, — the respiration more quick, short, and difficult ; tiie pulse more rapid ; the functions of the stoaiach more disordered ; the alvine evacuations longer retained ; tiie urine more scanty, higher coloured, and more turbid — often brown and foetid ; the skin drier ; and the face and otiier parts which are not oedematous, more emaciated. In this form of the disease, the veins of the abdominal parietes often enlarge and become very apparent ; a symptom whicii M. Revnfaud found dependent in several cases, upon obstruction or obliteration of the vena porta ; the sub-cutaneous veins of the abflomcn having been enormously dilated. When the effusion arises from disease of the substance of the liver, it is not infrequently associated with some degree of jaun- dice. With great distension of the abdomen, dis- tressing borborygmi occur, and aggravate the symptoms. The anxiety, debility, restlessness, and inability to sleep increase ; and in some in- stances, hydrothorax or anasarca, or both, either with or without a diminution of the abdominal accumulation, supervene in this stage of the malady. The fatal close of the disease is generally ushered in by somnolence, or by delirium followed by somnolency; by urgent thirst and dryness of the mouth and throat ; by vomitings or retchings ; by leipothymia ; small, freq>ient, and irregular or fluttering pulse. The duration of this form of ascites is extremely various : it may continue for years, or it may run its course in a few days. In this latter case, either the kidneys are very seriously diseased, or the circulation through the vena porta is obstructed. The complication of ascites with pregnancy will be considered in the sequel. 97. iii. Appearances in Fatai, Cases. — (a) The eff'iised tiuid varies greatly in quantity and appearances. It is usually of a pale citron or yellowish tint; sometimes greenish, or even brown. When it has arisen from obstruction in some adjoining viscus, as in the passive st;ites, it is generally limpid and nearly transparent; but when it has proceeded from disease of the peri- toneum, as in the acute forms, or from sub-acute inflammation, it is turbid, whey-like, contains albuminous flocculi, or pieces of filamentous lymph, or even thin or partial adhesions. In some cases the fluid exhales a foetid or urinous odour, and it is occasionally of a brown, or nearly blackish hue. from the exhalation of some of the colouring particles of the blood. — (b) The peri- toneiim presents, in different case=, all the changes already described ( § 10.). Sometimeij it is covered by a thin, albuminous, or inuco-albuminous coat- ing, or is adherent in parts. In other cases it is softened, thickened, blanched, and as if macerated ; and in some granulated, or tuburculated ( Biciiat, Ijaruon, Andhal). The omentum has occasion- ally nearly disappeared (iMorgacnx, Pezold, De Haen, &c.) ; or it is pushed up towards the sto- mach (OiiANDER, myself, and others) ; or adherent in parts to the intestines, or to the abdominal pari- etes (IliBE, Andual, &c.); or suppurated, thick- ened, and indurated (SroiiRCK, Osiander, &c.). It has likewise containeil steatomatous or other tumours. The mesente7'i/ is sometimes also diseased. Its glands are very frequently enlarged ; and tumours of various kinds have been found in it by Tui.pius.IIaroer, J. P. Frank, Yon Berger, Alix, Andral, myself, and others. The pancreas has been seen enlarged and scirrhous, but it is not often altered in structure. 'Jlie liver is most generally diseased. The vena porta has been found obstructed by coagulable lymph, the pro- duct of inflammatory action, and even altoijether obliterated , by Ixeynia-jd ; or pressed upon by tu- mours, or its circulation impeded or interrupted by atrophy, or by enlargement, or by induration of the substance of the organ ; or by scirrhous, gra- nular, or tuburcular degenerations of its structure (see Liver). The gall-bladder and hepatic ducts have been found containing biliary concretions, by MonGAGNi, Hoffmann, SxoiiRCK, MARTEAu,and others ; and in some instances distended by a black and thick b.le ; or containing a small quan- tity of pale mucous bile, by the same authors as well as by Ridt.ev, Pezold, Duverney, YoNGE, and several recent writers. The kidneys have also been often seen diseased, as described above (§ 1.'^.) ; and the spleen is very frequently enlarged, indurated, and otherwise changed(SELLE, ScHMiJCKER, Horn, Grottaneli.i, and myself), a^ described in that article, especially in the ab- dominal dropsies that occur in low, moist, warm, and miasmatous localities. 98. iv. Diagnosis. — A. Ascites may be mis- taken for tympanites, for the various kinds of en- cysted dropsy, and for pregnancy. — (a) Tym- panites is readily recognised by the clear resonance furnished on percussion ; by the absence of fluctu- ation, and of oedema of the lower extremities ; and by the history of the case. — (b) Ovarian dropsi/ is generally preceded by pain, tenderness, and tumefaction, or distinct tumour in the regions of the ovaria ; and the enlargement proceeds from one or both these parts. It is never general or uniform in its earlier stages, as in ascites ; and fluctuation is usually very obscure, and to be de- tected only in the situation of the tumours, the circumscribed form of which may be determined until a very advanced period of the disease. In- stances, however, occur, in \yhich the ovarian tumour induces effusion into the peritonea! cavity : in this case, the exact nature of the disease can be ascertained only from a knowledge of the pheno- mena attending its early stages, or of those con- sequent upon tapping ; the letting out of the ascetic fluid generally allowing the ovarian disease to be readily detected. The same remarks apply to dropsy of the Fallopian tubes, which are attended with nearly the same phenomena as the ovarian disease. — (c) lu hydrometra, or dropsy of the uterus, fluctuation is with difliculty ascertained; and cannot he detected in the iliac regions, by the means described above (§ 92.) ; besides, the form of the uterus may be defined upon a careful ex- amin:ition ; the progress of the aft'ection is usually much slower than in ascites, and there is much less disturbance of the general health. There are, moreover, entire obstruction of the catamenia, and a sense of heavy pressure on the rectum, bladder, and adjoining parts. — {d) Cysts con' tainiiig a watery fluid, and of great size, ar sometimes attached to the liver or to the spleen? giving rise to appearances in their advanced states closely resembling ascites. But Hiey al- ways present a circumscribed tumour upon ac- Ss 3 630 DROPSY OF THE ABDOMEN -TnEATMENT curate examination, the swelling commencing on one side, generally in the upper regions ot the abdomen, whilst ascites begins, when the patient is up, in the lower, and is equally diffused when he is supine. — Ot" encijited dropsies, generally, it may be remarked, that a heavy weight, sometimes with dragging pain, is commonly felt, when the patient turns in bed, particularly to the opposite side to that to which tlie cyst is attached ; and that he usually lies on the latter side. When only one large cyst, containing a watery fluiil, exists, the diagnosis is sometimes very difficult, unless the history of the case is known, particularly in respect of the last stages of some kinds of ovarian dropsy. In rare instances, several cysts are attached to different parts of the same viscus, or even to different organs, or to the abdominal parietes. But very much more frequently, the dropsical ovarium, or ovaria, is very irregular and lobular, owing to its division into several distinct cysts. In all such cases, the abdomen, upon an accurate manual examination, will feel more or less irregular and unequal, and the nature of the disease be nearly manifest. M. Pioiuiv states that a duller sound is emitted upon percussion in encysted dropsies than in ascites; and that the parts around the cyst furnish the same sound as in health. The progress also of encysted dropsies is always slow, and their duration frequently very long. They are commonly unattended by much constitutional disturbance until they reach a very great height, so as to press injuriously upon the stomach, and to impede the functions of respira- tion, when hectic fever is often developed ; the secretions and excretions, and even the quantity of the urine, not being much diminished or disordered until then (see Dropsy — Enciisted). — (e) Preg- nancy is distinguished from ascites by the state of the OS ((teri upon examination, by the progress of the enlargement, and the defined form of the uterus, when the patient is supine, and the ab- dominal muscles relaxed ; by her unbroken health and clear complexion, — the countenance of drop- sical persons being pale, sickly, and cachectic ; by the enlargement and firmness of the breasts, and the deep colour of the areola;, — these organs being soft and flaccid in ascites. (See PHEGNANCY.) 99. B. It is not enough that we should satisfy ourselves as to the exact situation of the effused fluid, but we should determine us correctly as pos- sible the pathological coiidilioii givitig origin to it. In order to do this, we should enrieavour to con- nect it with its exciting causes, and to enquire into the external agencies concerned in its appearance, and the conditions of the various secreting and excreting organs. The manner of its accession, the rapidity of its early progress, the sensations of the patient previously to this event, and the several phenomena furnished by an accurate manual examination, as well as a rational con- sideration of all the natural functions, in connec- tion with external signs, must be our main guides in coming to a conclusion relative to the alteration or alterations, functional and organic, upon which it chiefly depends. The rapid increase of the swelling after exposure to cold or any of tiie usual causes of inflammatory disorder, or alter the sup- pression of discharges or of eruptions ; a sense of tension or pain in any of its regions ; increased sensibility upon examination by percussion, or in any other way, especially in the hypochondria, in the loins and uterine region, demand par- ticular attention ; and the urine should be daily examined, and its coagulability noted. Tiie size of tlie abdomen should also be observed daily, and the decrease and increase marked by a tape measure. 100. V. Prognosis. — The prognosis in ascites must necessarily depend upon its form and com- plications, upon the habit of body, and constitu- tional powers of the patient, and the effects of remedies. A much more favourable opinion of the result may be formed when the disease is primary, occurs in young and previously healthy persons, or follows scarlet fever or measles, than when it proceeds from organic change either in the liver, kidneys, ovaria, or other abdominal viscera. In cases of this latter description, very few recover permanently. Swelling of the hands ; emaciation of the arms ; frequent cough ; very scanty, fcetid, and thick urine; colicky pains ; the presence of jaundice ; and the occurrence of hic- cup, vomitmgs, or diarrhoea ; are very dangerous symptoms. The appearance of aphtliEe, of con- vulsions, of livid blotches on the extremities, par- ticularly on the hands and forearms, are commonly fatal signs, as justly insisted on by Hippocrates, FoRESTus, Frank, and others. Somnolency, great irritability of stomach, a pulse above 120 or intermittent and small, and delirium, are not less unfavourable (see §37.). The characters of the fluid let out by tapping also indicate the result. If it be thick, fcetid, brown, glutinous, or albuminous, no permanent advantage will be derived from the operation. 101. vi. Treatment, — But little in addition to what I have already stated may be said of the treatment of ascites. — 4. Its acute or sub-acute idiopathic states require vascular depletions, gene- ral or local, or both, and the rest of the antiphlo- gistic regimen, to an extent which the pulse and sym.ptoms, and circumstances of the case, will indicate. In ascites occurring in children after the exanthemata, local depletions will be sufficient, but if leeches be applied, their punctures should be carefully watched ; for there is often great dif- ficulty in arresting the haemorrhage from them after these diseases. IMercurials and antimonials, at first so as to act upon the bowels, and subse- quently as alteratives, or with opium, and pushed as far as to affect the mouth ; external irritants and derivatives ; deobstruent diuretics, and digi- talis— this last particularly in the ascites conse- quent on scarlet fever ; diaphoretics, and warm or vapour baths, followed by oleaginous frictions of the skin, in order to restore its perspiratory func- tions ; and lastly, gentle tonics conjoined with purgatives, oi; with diuretics, and assisted by warm iodine, or medicated baths, will frequently succeed in removing disorder, if early employed, and if a vital organ have not experienced serous structural change. Upon the whole, these forms of ascites should be treated as described at length in a pre- ceding chaj)ter (§ 40.). \02. /i. The asthenic form of primary ascites (§ 94.) is most readily removed by the tincture, or other preparations, of iodine ; by the ferrum tartari/atum with cream of tartar ; by the com- bination of purgatives with tonics, as Bacheu's pills ; or of Ionics with diuretics ; by warm salt- water bathing ; warm medicated baths, particularly DROPSY OF THE ABDOMEN— Tiieatment or. C31 those with iodine or aromatic herbs ; and frictions of the surface with stimuhiting liniments. The gentler vegetable tonics should be first employed, and subsequently chalybeates and the more active tonics, as bark, gentian, ike. ; and these may be conjoined with acids, particularly the sulphuric with spiritus fetheris sulphurici, or the nitre- muriatic with spiritus ajtiieris nitrici, and other diuretics ; and alternated or associated with the rest of tlie treatment recommended above (§ 42.). In this, and other forms of asiiienic ascites, J. P. Frank advises the exhibition of full doses of :''pium, — a practice from which 1 have seen niucli benefit obtained after morbid secretions had been evacuated by purgatives as now prescribed. I have, however, usually combined tiie opium bitartrale of potash, with an equal quantity of biborate of soda and sulphur, have succeeded in restoring the suppressed evacuation, as well as in removing the disease. 104. D. I'he siiniptomatic, or complicated, form of ascites must be treated according to the principles laid down (§ 44. et seq.), and with strict reference to the original lesion or malady, as far as that can be ascertained. The remedies, perhaps, the most to be depended upon, are purgatives, alteratives, and diuretics ; — calomel, elaterium, croton oil, camboge, jalap, &c., va- riously combined ; the nitro-hydrochloric acids, in- ternally with the compound decoction of sarsa- parilla, and externally in tiie form of bath or lotion ; saline substances, with taraxacum ; the with diuretics and tonics. Dr. Graves, whilst he j preparations of iodine in small but frequent doses, „,!,., ...l; . -,-Tv • :__ i_ 1 niucii diluted, long persisted in, and associated with narcotics, particularly opium, or lactuca- rium, or conium ; cream of tartar or acetate of potash, variously combined, especially with squills ; and, subsequently, the decoction of broom tops (F. 75.), or of pine tops (F. 51.), or the decoctum cydonia; compositum (F. 57.), or the decoct, inula? comp. (F. 67.), or the infusum berberis (F. 225.), with one or more diuretic medicines. Cream of tartar was found most suc(ressful by Dr. Home ; and, if given in suf- ficiently large doses, conjoined with substances suitable to the complications of the case, and continued sufficiently long, is the most certain remedy that can be prescribed. I have usually exhibited it, in this state of the disease, in doses of from two drachms to half an ounce, in the form of electuary, with an aromatic powder and diuretic medicine. In this form it generally acts freely on the bowels, and sometimes, also, increases the flow of urine. Terebinthinate in- jections, and oleaginous frictions, as already di- rected ( j 65.), are also useful adjuvants. In some states of ascites, advantage may be derived from the internal exhibition of cantharides. J. P, Frank has seen cases where it has effected a cure ; yet he considers it the most uncertain medicine that can be prescribed. Graduated Compression of the abdomen, by means of the belt recommended for ascites h'y the first JNIunro, has been employed successfully by Professor SpERANZA and M. Godelle; and, when it can be borne, may prove serviceable in some asthenic and chronic states of the disease. Riverius recommends poultices of the bruised charlock, the raphanus raphanistrum, to be placed over the loins or upon the abdomen, and to be fre- quently renewed. Bran poultices are also in com- mon use. The warm medicated baths, already no- ticed, are calculated to be of service, when assisted and caused it to be persisted in for seven or eight weeks, I by sudorifcs. But these last cannot be depended wlien good effects began to appear. This medicine was I upon unless they be combined with opium. Hence continuedfornveorsixmonths at the end of which time I the occasional good effects of Dover's powder the catamenia had become regular, and the eiTusion had - • ■ • o*^, r ' In some cases, an increased proportion of the ipe adopts this part of Frank's practice, recommends, in addition, the free use of animal food, which is doubtless requisite in many instances, particularly when the effusion has arisen chiefly from a poor or thin diet, and other depressing causes. 103. C. The metastatic form of ascites requires a similar treatment to that directed for the acute and sub-acute states (§ 40, 41.), together with means to restore the primary affection. Counter- irritation of an active kind, and long persisted in, as well as appropriate to the nature of tiie disease on which it has supervened, will often prove beneficial. The repeated application of moxas has been for ages commonly resorted to in ascites in the eastern countries of Asia, and has more recently been found useful by some Continental physicians. Several moxas are usually directed to be placed around the umbilicus, or over the hypochondria, or upon the loins, according as the functions of the liver or kidneys appear to be most obstructed. Sulphureous, vapour, iodine, and other medicated baths, seem calculated to prove beneficial in this, more than any other form of the disease. In this variety, also, the bichlo- ridum hydrargyri may be taken in the com- pound decoction of sarsaparilla, with colchicum or squills ; or the ioduret of mercury may be cautiously exhibited, in small doses, with digitalis and extract of conium. When the disease has followed the suppression of the catamenia, the preparations of iodine*, much diluted, or the * I was consulted, some years ago, respecting a case of ascites consequent upon profuse and frequent menstru- ation. This discharge had been suppressed by exposure to cold; and, soon afterwards, symptoms of inflammation of the serous covering of the liver, with effusion, were ob- served. These were combated by local depletions, wliich were repeated ; by external irritants, by mercurials, and. subsequently, by cream of tartar with liborate of soda and diuretics, and other means in various forms of combin- ation ; but without any permanent benefit. I directed at last a weak solution of "the iodideof potassium witli iodine regular entirely disappeared. I was more recently consulted as to a similar case, in the care of Mr. Gbabham, of Roch- lord ; which had, likewise, been preceded by profuse catamenia, suppression of this discharge foUrwjd by pul- monary diseise, and extension of tenderness and fulness from the thorax, over the region of the liver and abdo- iiien ; with effusion of fluid into the abdominal cavity. Tlie pulmonary affection and the more acute symptoms 'Mbsidcd under the very judicious practice of this gentle- man ; but the means successively aiioptcd in consultation failed of removing thedrop.sical collection, and of arrest- ing the progressive em.iciation. There was also, in this '_ase, scrofulous disease of one bones of the left hand. This was left to itself, in hopes cacuanha will be useful. 1 have seen benefit de- rived from the following, when the stomach was that the discharge from it would have had a salutary eflect ou the principal scat of disease. In summer, f832, this young lady came to London, where various remedies were prescribed, without relief. I then put her upon a course of iodine ; and, directing her to persist in its use, advised her return to the country. I have since under- stood that, during the use of this medicine, the effusion ise, scr'ofuTous disease of one or two of the metacarpal i disappeared, and the catamenia returned ; that she re- " " " " " ■ ■"■ ' ■ " - • . covered her looks, and is now married. S s 4 632 DROPSY OF THE ABDOMEN — Trfatment or. when this membrane is punctured or otliervvise not iiritable, or when its contingent effect of causing; vomiting would not be injurious : — No. 185. RPulv. Ipecacuanha; gr.ij. ad iij.; Camphora; Subactser.j.; Pulv. Opii Puri gr. j. ; Potassa; Nitratis et Pulv. Radio. Glycyrrh.aagr. X. M. Fiat Pulvis quovis in vehiculo idoneo sumendus; vel sit bolus cum Conserva Rosa;,et bis terve in die capiendus. 105. I'iiracentesis is the last means to which recourse should be iiad. I took occasion, many years ao^o, in tlie Londnn Medical lieposiwry, to differ from' those who advise either an early or an indiscriminate recourse to this operation, and for reasons about to be stated. It has, however, had many advocates, from the earliest period of the ait and probably originated in the benefit, in some cases, dtvived from the spontaneous rupture of the umbilicus and discharge of the fluid. The empiiical manner in which it was resorted to duiing the fifteenth and sixteenth centuries had brought it into disrepute, when Mead, Dei.ius, Banyeu, Stoerck, SciiMucKER, and some others, wrote in favour of it, and endeavoured to establish it on a more rational basis. II.\i:tesieek expressed him- self favourably of it, and advised purgatives and tonics to be perseveringly prescribed after its per- formance. FoTiiERCiLL conceived that its want of success arose from its being too long delayed, and directed it to be resorted to early. In the present day it is certainly more frequently per- formed than circumstances appear to me to war- rant ; and although it should not be prescribed from practice, I believe that the cases are few that will be benefited, and still fewer that will be cured by it. The chief objections to it are founded on its being inappropriate in a large num- ber of cases, on its liability to induce inflamma- tory irritation in the pevitoneum, and on the fa- cility with \\hich air may enter the abdominal cavity during the usual mode of performing it. On these topics I will add a few words. 106. 1st. Paracentesis seems calculated to in- crease the mischief, and to diminish the chances of a complete cure, in acute and idiopathic ascites, either by increasing inflammatory irritation, where this already exists, or risking its supervention in the asthenic forms of the malady. When ascites depends upon altered structure of the kidneys, it will seldom do more than give temporary relief ; and a similar remark applies to the complication with disease of the liver. This advantage is, however, worth procuring, and is sometimes con- siderable, especially when a more decided effect is produced by medicines, as is sometimes the case, after the abdominal distension has been removed by it. But unfortunately this result is not always obtained ; for inflammatory iriitation often extends from the punctured jjart, owing to the readiness witli which an asthenic or erysipe- latous form of inflammation follows punctures of serous surtaces, in a cachectic habit of body, and particularly when the functions of either the liver or the kidneys are obs;ru(;ted ; and thus, in addi- tion to the original structural lesions, di.sease is superinduced in the ])eritoneum, and the effusion is renewed with greatly increased r.ipiJity, This complication is, moreover, favouietl by the ef- fects of the fluid upon the wound in tlie perito- neum ; for, as 1 have already shown, this fluid, owing to interruption of the depurating functions, is often possessed of propeities which induce in- flammatory irritation in the healthy pciitoueum, and which are more likely to have a similar ellect divided. 107. 2d. The introduction of air into the ab- dominal cavity, although frequently unattended by any inconvenience in a healthy state of tiie fiame, and particularly when the peritoneum and adjoining viscera are not in a morbid or irritable condition, is certainly sometimes productive of very serious and even fatal effects, especially in that state of the constitution and of the abdo- minal organs, in which ascites commonly pre- sents itself. I believe that this inference is conformable to the experience of the most en- lightened pathologists. The instrument, aleo, ^^ith which paracentesis is usually performed, al- though calculated to facilitate the removal of the fluid, favours the introduction of air. The wound it inflicts is such as to prevent the immediate closure of the aperture in the peritoneum ; and in some instances this membrane is pushed before its point so far as to detach it to some extent from the abdominal parietes, — circumstances which, when viewed in connection with the cachectic habit of body, weak powers of restoration, and morbid state of the accumulated fluid, are cer- tainly favourable to the occurrence of asthenic inflammatory action, and its consequent effusion, after the operation. On this account, therefore, paracentesis may be preferably performed by the lancet, as recommended by J. P. Frank ; or, after the abdominal parietes are divided by the scalpel, the lancet may be pushed through the peritoneum, a bandage placed around the abdo- men being tightened as the fluid passes off, and care being taken to close the aperture with ac- curacy as soon as the stream begins to cease. But even in this manner the operation is not likely to prove of much service, where there is tenderness of the abdomen. Many of the cases of recovery imputed to paracentesis, I am con- vinced would have taken place without it, under _ an appropriate treatment ; whilst, doubtless, be- nefit has been derived from it, both of a temporary and permanent kind. Instances certainly some- times present themselves, in which the symptoms are so urgent tiiat it would be culpable to neglect having recourse to it. It should, however, be the last resource. In ascites appearing during preg- nancy, it, or puncturing the foetal membranes, is both requisite and successful ; although in two such cases, in which I was consulted, the means hereafter to be noticed prevented the necessity of performing either. It is unnecessary to state the number of times the operation has been performed, and the quantity of water lemoved either at once or altogether. Extreme instances are comparatively rare,, and convey no useful information. On this subject I will only add fuilher, that tapping through the umbilicus has been recommended by Dr. Sims, and several other writers; that it has also been advised to pel form the o])eration through the vagina; and thnuigh llie bladder, by Dr. Biiciiannan'. 'i'he objections to the second and third of these are very obvious ; and, as respects the last, the ri-k of urine escaping into the peritoneum must put it out of the (|uestion. The recommend- ation of conveying astringent fluids, or vapours, into the cavity of the abdomen, advocated by a few writers, both i5ritish and Continental, about the end of the seventeenth and beginning of the DROPSY OF THE ABDOMEN— PuEnpF.nAL—TBEATMEKT. 633 eighteenth centuiies, merely shows that medical and surgical temerity is not a result of science, but of its earliest dawn. 108. The diet and regimen in ascites is the same as that briefly noticed above. In the more asthenic states, a liberal diet of animal food of a ligiit and nutritious kind is requi:-'ite, in addition to a tonic treatment; and much benefit will sometimes ac- crue from allowing the patient the use of malt liquor, or gin-punch, in moderate quantity, and from making either of them the vehicles for the exhibition of diuretics, with gentle tonics, or adding them to some one of the diuretic drinks in the Appendix (F. 5B8. et seq.). In cases of this description, Recipe 781., or the following, recom- mended by RicHTEn, may likewise be used : — No. 186. B Rad. Scillse Recent. 3j.; Cort. Aurantii, Radicis Calami Arom., aa 3 iij. ; Juniperi Baccar. contus. 3 ij. ; Villi Albi Hispan. lb. iv. Digere per dies tres, cola, et adde Oxymcl. Scillae 5 ij. M. 109. IV. Puerperal Ascites. — i. Pathology. — The more frequent occurrence of ascites in the female sex has been partly attributed to the influence of the female organs in giving rise to it (^ 35. 89.), independently of the puerperal states. But effusion into the peritoneum may occur either (a) duiing pregnancy, or (ft) after deliverv — A. The associutiimoj ascites icith preg- nancti has been noticed by several of the older writers, and by many of the moderns, and is not an infrequent occurrence. Either impregnation may take place during the dropsical ihsease, wiiich is very rarely the case ; or the effusion may be excited by pregnancy, being favoured by pre-existing obstruction in the liver, or a ple- thoric state of the system. This latter is the com- mon mode of its appearance. It is generally of a sthenic or plethoric character, and is often associated with impeded circulation through the liver, or the right side of tlie heart; although it may be occasioned solely by changes induced by utero-gestation, and independently of visceral dis- ease. In this latter case, the ascites seldom com- mences until about the third month. When it exists, the form or even the body of the uterus often cannot be ascertained by a careful examination of tiie abdomen, unless with difficulty, when the pa- tient is quite supine, with the hips elevated. I'he hypochondria become enormously distended and elevated as the effusion and pregnancv proceed. The urine is lateritious, scanty, and of a high colour; and there is much tiiirst, and pains in the back, loins, and thighs. Scarpa states, that fluctuation is obscure in tiie hypogastric i^egion and flanks, but distinct ii the hypochondria, par- ticularly in the left. The state of the os uteri, the patient's sensations, 'and the history of the case, will generally enable the practitioner to decide as to tiie nature of the complication and the period of pregnancy. Tiiis state of disease becomes remarkably distressing. The patient is afllicted by dj'spncea ; and by cramps, pains, and oedematous swellings of the lower limljs, from pressure on the nerves and vessels supplying them, and by sickness and voniitings. She is unable to ascend the stairs, or to lie down in bed. The bowels are very constipated, and the breathing short and difficult ; to these often are superadded great anxiety, lividity of the lips and counte- nance, heavy and somnolent headach, leipothy- mia, palpitations, and other sjm]>toms indicating the propriety of having immediate recourse either to paracentesis, or to the rupturing of the mem- branes. When the disease is dependent upon obstruction or structural lesion of the substance of the liver, a fatal issue often takes place soon- after delivery, whether that have been premature or at the full tir:Te. But when it is occasioned chiefly by the changes in the nervous and vas- cular systems, and stale of the circulation con- nected with pregnancy, a favourable termination may be expected. Scarpa, Desormeaux, and Lee, record cases, in which this disease was still further complicated with dropsy of the amnion C?n5.). 110. 73. Ascites more frequently occurs suli' sequenthi to delivery, but at no definite time ; either in a \ery few days, or not until some weeks, or even months, afterwards. It may either be a sequela of the adynamic form of puerperal fever, of which I Jrave observed two cases; or of peritonitis ; or of inflammation of the uterus, ovaria, or of their veins, occurring at this period. It may likewise be induced by suppression of the lochia ; or by a diarrhoea which has been suddenly arrested before disordered secretions and accu- mulated faeces have been evacuated ; or which has been long neglected, or injuiliciously treated. It is generally acute or sub-acute, when it ap- pears in this manner : but if it occur in females who have been ill-fed, or who liave experienced large losses of blood about the period of labour, it ])Ossesses very different features. 111. ii. Treat5ient. — (a) Ascites associated with pregnancy is seldom benefited by diuretics. In two cases which came under my care, and presented the symptoms described above, early, repeated, and moderate venaesection ; a gentle and constant action upon the bowels by cream of tartar, and confection of senna ; and full doses of opium, assisted by various other means directed according to the symptoms ; carried both patients to about the full period of gesta- tion ; and both bore living children. After de- livery, the rapidity with which the water passed off by the kidneys was surprising. In one of the cases, three large chamber utensils were filled in twenty-four hours. Paracentesis was urged by the ordinary medical attendant in one of these, but was delayed as a last resource : it was not performed in either. Utero-gestation very seldom reaches the full time, when fluid is effused into the abdomen, whether the operation be resorted to or not. Scarpa advises its early performance; and adduces a case in which this complication was aggravated by diopsy of the amnion, and in which it was pertbrnied under the left false ribs, and the patient recovered. It was also resorted to successfully in the one recorded by i\Ir. Langstaff. In M. Desor-mfaux's case there were ascites, dropsy of the a.iiuion, and anasarca. He punctured the membranes, and brought on labour. 'I'lie instance adduced by Dr. R. Lee resembled that mentioned by Scarpa. The cervix uteri being obliterated as in the ninth month of pregnancy, he ruptured the membranes, and brought on labour ; after this the patient slowly recovered. 112. (6) As to the treatment of ascites oc- curring soon after delivery, the same means, ap- propriately to the circumstances of the case, as have been already described, are to be put in 634 DIIOPSY OF THE AMNION — Treatment. practice. The great majority of such cases will recover under judicious management, if the liver or uterine organs be not very seriously diseased. Paracentesis is very seldom required ; and I be- .lieve the risk of performing it to be greater in this state of the disease, than in any other, from its liability to induce asthenic inflammatory ac- tion in the peritoneum, and to increase it if it be already present. I may add, that instances have occurred in which air has been extricated from the decomposition of the animal matter in the fluid effused, particularly when the disease has depended upon atonic inflammatory action in this membrane, and thus the ascites has become complicated with true tympanites. This is more likely to occur, after paracentesis has been em- ployed in a case of this description. ( See Author, in Land. Med. Repos. vol.xvii. p. 378.) BiBLiOG. AND Refer. — i. Avicenna, Canon, l.iii. fen. 14. tr. 4. cap. 5. et seq. — Tulpius, !. ii. cap. 33. — Riverius, Praxis, 71. — Rui/sch, Observ. 70. (Ossification of vena porta.) Yonge, in Philosopii. Trans. No. 333. — Mor- gagni, De Caus. et Sed. Morb. ep. 38. art. 20— 34. — K Hojfinann, De Hydrope Ascite. Halae, 1718. ; et Con- sult, cent. il. No. 7().—Coschwiz, De Virgine Hydropica, Uteri Mola simul lahorante. Hala^, 172.5. — R. Mead, Monita et Pra?cepta Medica, cap. viii. p. Zl. — Pezu/tt, Observ. Med.-Chirurg. obs. Gi., et obs. 77. — Jacqnart, Non ergo Hydr. Paracentesis. Paris, 17-52 — Eoelimcr, De TJtilitate Paracent. frequent, in Ascite. llal;e, 17."i9 — Cartheuser, De Hydr. Abdominis Vario. Pr. 1760.— Stoercic, Ann. Med. t. i. p. 129., et t. ii. p. 265.— Tog-W, Hy- dropis Ascitis Semciologia. Goet. 1764 Lmnwus, De Morb. Naut. India?. Lips. 1768.— Jto, Observ. Chirurg. fasc. iil. p. 1. De Hacn, Rat. Med. par. v. p. 40. — Lieu- taud. Hist. Anat. Med. t. i. p. 3. — Lentin, Beytrage, &c. p. ISO. — Pringle, in Edin. Med. Essays, vol. iii. p. 378. Monro, in Ibid, vol.iv. p. 428. — Sauvages, Nos. Meth. vol. ii. p. 49S. — Hunter, in I\Ied. Observ. and Inquir. vol.il. No. 2. — Futltergill, in Ibid, vol.iv. p. 114 — Mackenzie, in Ibid. vol. i. p. Md. — SeUe, N. Beitriige, b. ii. p. 17. VonBerger, Act. Reg. Soc. Med. Haun. vol.i. p. 248 Young, in Duncan's Ann. of Med. vol. i. — Si7ns, in Mem. of Med. Soc. of Lond. vol. iii. n. 27. — Warner, in Ibid. vol. iii. p. 588 Flajani, Collez. d'Osservazioni, t. in. OSS. 25., t. iii. oss. 55. — Albers, De Ascite, June, 1795. Thomann, Annalen ad 1800, p. 3-57. — Mac/can, in Med. and Phys. Journ. 1S02. — Marteau, in Journ. de Med. t. xxviii. p. 328. — Des Hydr. Ascites et Leu- cophlegniasies qui rognent dans les Marais de la Vendee. Paris, 1804. — Willicli, De Paracentesi Abdom. in Hy- drope. Goet. ISOi. — Ric/iler, Die .Specielle Therapie, &c. b. iii>-p. 26. — M'Lougliliii, Trans of Irish Co)l. of Phys. vol. i. p. 199. — ^- Grottanelli, Splenis Morhi, &c. 8vo. Flor. 1821, p. 117. (Enlargement of spleen ivilh ctilo. rosis and ascites.) — /-. Rostan, in Nouv. Journ. de Med. t.iii. p. 215. (On the diagnosis of ascites.) — Godclle, Nouv. Biblioth. Medic.t. vii. p. 5., ett.vi. p. 34. (On compression in.) Speranza, Archiv. Gencr. de Med. t. xvii. p. 604. tandr^-Beauvais, in Diet, de Medecine, t. iii. p. 49 J. J. Leroux, Courssurles Generalites de la Med. Pra- tique, t. iv. p. 6. — Venablcs, in Lond. Med. Gazette, vol. v. p. 397. — J. Bouilland, in Diet, de Med. et Chir. Prat. t. iii. p. -524. — G. Andral, Clinique Mt'dic.ile, &c. t. iv. p. 269. et seq. — Reyncaiid, in Journ. Ilebdom. de Med. t. iv. p. 137. — A. Buchanan, in Glasgow Med. Journ. vol. i. p. 195. — Elliotson, in Lond. Med. Gazette, vol. vii. p. 313. ; and Ibid. vol. ix. p. 571 . 617. — Graves, in Ibid, vol. vii. p. 584. ii. Puerperal Ascites. — Ruysch, Observ. Chirurg. Jjo. 70. — Berchelinann, De Ascite cum Quartaiia in Gravida. Giess. 1752 Mauriccau, Traite des r,!;(!adips des Femmes Grosses, vol. ii. p. 59. 204. — Bocliimr. Do Complicata,cum Abdominis Hydrope Graviditate,eju.sque Signis. Hala>. 1770. — Chnmhnn, Maladies des Femmes, t. i. p. 28. — Baraillan, in Mem. de la Soc. 11. de Med. an. 1784, 1785. — Lanrin, in Med. Observ. and Inquir. vol. V. — Osiander, Ueobachtungen, IfiC. p. 114. — J. P. Frank, De Curand. Homin. Morb. vol.vi. parsi. p. 278. Scarpa, Sulla Gravidanza Snssequita do Ascite, cftc. Trev. 1817.; et in Journ. of For. Mod. vol.i. p. 249.— Langstaff', in Transac. of Med. and Chirurg. Society of Lond. vol. xii. p. 372. — J. Burns, Principles of Mid- wifery, 6th ed. p. 238. — Desormeaux, in Diet, de Mede- cine, vol. xi. p. 391. — Portal, Observat. sur la Nature et le Traitemcnt de I'Hydropisie, vol, i. p. 213 R. Lcc, in Lond. Med. (lazctte, vol. vii. p.3K7. V. Uuoi'sv OF Tin; A.mmon. — Hydrops Aniniosis, Mercier ; Hydrops Amiiii ; Hydrometra of Pregnant Women, Desormeaux. 113. Defix. Tlie preternatural distention of the uterus, by an excessive secretion of liquor amnii, giving rise to symptoms of ascites, sometimes with obscure fluctuation. 114. i. Pathology. — A morbidly increased secretion may take place, 1ft, within the amnion ; and, 2d, between the membranes and uterus. The former usually occurs during advanced utero- gestation ; the latter in the early months, and generally passes oflf without occasioning any dis- turbance as pregnancy proceeds. The excessive accumulation of fluid in the cavity of the amnion was first accurately described by RI. Mercier ; and it was imputed by him to inflammatory action in this membrane. It has more recently been noticed by M]M. JNIaunoir, Duci.os, and Desormeaux ; but the researches of this last phy- sician have not confirmed this view of its origin. Dr. R. Lee has recorded five cases, in none of which were any inflammatory appearances in the amnion, and only in two were there in- flammatory or dropsical symptoms in the mother. But in all of them, some malformation or dis- eased condition of the involucra, or of the foetus, existed, and rendered it incapable of supporting life subsequently to birth. It is sometimes con- nected with a dropsical diathesis in the mother ; but is more frequently entirely dependent upon disease of the foetus and its envelopes. It pos- sibly may also depend upon an affection of the uterus itself, as hinted by M. Desormeaux. 115. The Diagnosis of dropsy of the amnion in its simple form, and where the quantity of fluid is not very great, is difficult. Fluctuation is obscure, deep seated, or wholly imperceptible. On examination, however, per vaginam, the body of the uterus is prematurely enlarged ; the cervix is almost entirely obliterated ; and there is a sense of fluctuation in the vagina upon percussion of the abdomen. The rapid increase of the uterus, the gravative pain in its region, the feeling of weight and pressure in the pelvis, the frequent calls to evacuate the bladder, and scanty secre- tion of urine, will further guide the practitioner. The diagnosis, however, will be rendered more difficult if it be complicated with ascites, as in the instances recorded by Scarpa, Desorhieaux, and Dr. Lee. In this case there will be fluc- tuation on percussion, but this will be no sure information as to the situation of the efl'usion. 'Jhe progress of the enlargement of the uterus, and the result of vaginal examination, in con- nection with an attentive manual investigation of the abdomen, alone can furnish correct indications as to the nature of the disease. IIG. ii. TnEAT.MENT. — The chief intentions are to relieve urgent symptoms, and to carry the patient safely, if possible, on to the period of delivery (Desormeaux and Lee).. These ob- jects may be attained by the treatment 1 have already advised (§ 111."), when the constitutional powers will admit of it. 15ut if the symp- toms become urgent, and the functions of the stomach entirely overturned, the advice of Des- ormeaux to puncture the membranes and induce delivery should be followed ; when the disease will be remedied, if not complicated with ascites ; in v/hich case, the means already described must be practised. DROPSY OF CELLULAR TIS^SUE — CEdem.u 635 BiELioG. AND Refer. — F. Meicier, De Acute- Am- niosis Ilydropc, :iut Amniosis Inflammatione quae evasit in magnain Aquarum Colluvicni, X-c. Paris, 180'.). ; ft in Journ. Gen. de Med. torn, xliii. el xlv. — Scarpa, Sulla Gravid. Susscq. da Ascite, &c. Trcv. 1817. — Ductos, L,ond. Med. Kepositorj', vol. xi. p. ."jli. — C. Maunui'r, in Melanges de Chirurg. Etrangere, &c. t. i. Gen. 1824. Dcsurmeanx, in Diet, de Med. t. xi. p. 385. — It. Lee, in Ix)nd. Med. Gazette, vol. vii. p. 38ii. — A. Duges, in Diet, de Med. et Chirurg. Prat. t. x. p. I.i4. VL Dkopsy OF THE Cei.i.ul.'Vr Tissue. — Syn. Anasarca (from ava,, through; and trap^, the flesh), 'TTTotrapxa, Auct. Vet.; ' Avai-af no,, hos- sius ; Leucophlegmasia, oi CdLTlhenser, and seve- ral of the older writers ; Ilydroscirca, Ilijdrops Anasarca, Auct ; HiidropsCetlularis, INI.Good ; Die Haiitwassersucht, Zellegewebe-wassersacht, Die Wassersucht des Zellegewehe, Germ; Anasarque, Fr. ; Anassarca, Ital. 117. Defin. Diffuse swelling, pitting beneath the pressure of the fingers, arising from an nn- natural accumulation of serous fluid in the cel- lular tissue. 118. Dropsy of the cellular tissue occur.^ in various forms and states : 1st. In respect of its form, it may be — (a) partial ((Edema) ; or (b) 'more or less general, aftecting either the tegu- mental cellular tissue chiefly (Anasarca), or the whole cellular substance (Leucoplilegmasia). 2d. As to its state, it may be the result of increased action, or of obstructed circulation, or of vascular oppletion (see Cellular Tissue, § 6.). I shall, therefore, treat of dropsy of the cellular structure /i/-s<, in its partial, and secondly, in its general forms ; and with strict reference to the states of vascular action and vital powers. 119. i. P.4UTIAL' Cellular Dropsy. — CEdcma (oiS))i«.a, from oliiia, I swell). A limited infillra- tioii of the cellular tissue is characterised by more or less swelling, which retains the impres- sion of the finger for a short time. It is very common both as a symptom of general debility, or of disease of some adjoining or remote part, or in connection wiih the dropsical diathesis, of which it may be the earliest manifestation. It often accompanies inflammatory action of the other structures — as the mucus, the fibrous, &c. the contiguous cellular tissue being then infiltrated with serum, owing to its participation in the ex- cited vascular action. Bronchitis, pneumonia, oedema glottidis, rheumatic or gouty affections, are illustrations of this occurrence. In cases of phlegmonous or sthenic infl'ammation of any part, especially of the cellular tissue itself, or of parenchymatous organs, tl'.e parts surrounding its seat are also often cedematous from the same catise. It may also arise from obstructed natural evnruntions, as suppressed catamenia, the disappearance of this discharge at the decline of life, constipated bowels, imperfect action of the kidneys, &c. and, in such circumstances, it usually appears in the feet and ancles. It ac- companies several aftections of the skin, espe- cially erysipelas ; and various structural and malignant diseases, particularly those implicat- ing the venous or lymphatic circulation. It frequently follows the inoculation of animal poisons, as the bites of serpents, &c. ; and it is always attendant upon diffusive inflammation of the cellular tissue, and induration of this structure (see Cellular Tissue, § 9. et seq.). Its dependence upon pressure or disease of the veins, or of the nerves, especially in the puerperal states, has been satisfactorily illustrated by the researches of several modern pathologists, and is fully shown in these articles. It may also arise from extreme fatigue, from exhausted vital powers, the result of previous disease or of old age ; it then being generally limited to the lowei^ exlremitics, and uncounected with any change in the urinary secretion. 120. B. The states of organic action and circu- lation, from which partial cellular dropsy often proceeds, may be resolved into the following : — (a) Increased determination of the circulation, sometimes with dimini^he 1 power of the ex- halants, the cedematous part being firm, resist- ing pressure, pitting very slightly, and without any diminution, or sometimes with increase of temperature; this constitutes sthenic or active oedema. — (h) Inflammatory action in the nerves of the part, occasioning augmented determination of blood, and effusion of serum, with elevated temperatui'e, and firm swelling, resisting or ad- mitting only of slight and evanescent pitting, and forming an acute or sthenic oedema of rare occurrence.— (c) Obstructed circulation through either the veins or lymphatics, the part being less firm, pitting more easily, and the temperature lower than in the former : in this case, the ob- struction may be either internal or external as respects the vessels, or it may exist in the glands ; the oedema being either acute or chronic as to its duration, and active or passive, generally the latter, as to its grade of action. — (d) Vascular plethoi-a, or relative increase of the watery parts of the blood, owing to diminished exhalation or elimination by the skin, pulmonary surface, or kidneys, or to the stoppage of accustomed evacu- ations, giving rise generally to sub-acute oedema, chiefly in the feet and ancles. — (e) Diminished tone of the extreme vessels or exhaling pores, attended by a laxity or lessened vital cohesion of the cellular tissue, producing passive or asthe- nic oedema, the part being soft, pitting easily and deeply, its teniperature very much lowered. Attention to the foregoing pathological conditions and distinguishing characters will readily sug- gest an appropriate treatment (§ 132.). 121. ii. General cellular Dropsy, or Ana- sarca, affects chiefly the sub-cutaneous cellular tissue, usually in a great degree, and very frequently in an acute or sub-acute manner. The cellular tissue throughout the body may possibly become dropsical ; but this must be a very rare occurrence, and manifestly incompa- tible with the duration of life ; although probably it may exist slightly, and constitute the Leuco- phlegmatia of Ccelius AuRELIA^'us, in which he conceives that this tissue resembles wetted bibulous paper, or a charged sponge. Indeed, a state nearly approaching to this very general or leucophlegmatical form sometimes appears in the dark races of the species. The anasarca described by jNIr. W. Hunter, as occurring in Lascars, seems to have been of this kind ; the lungs being especially affected, giving rise to severe and often fatal dyspoena. Anasaica pre- sents every grade of organic action and duration ; anfl hence it may be divided into the acute or sub-acute or sthenic; and the chronic, passive or asthenic. It may be either primary, as when it proceeds from cold or moisture ; or consecutive, when it follows some one of the exanthemata ; 636 DROPSY OF CELLULAR TISSUE- -PniMARY AND CoXSECUTIVE. or sijmptomalic, when it depends upon obstructed circulation about the heart or other viscera. ] shall consider it accordingly. 122. A. Primaiii iicute and sub-acute ana- sarca has been well described by Stoll, J. P. Frank, Wells, AiiEncno-MBiE, and others. It commonly occurs from exposure to cold and moist- ure, or from drinking cold fluids, when the body has been perspiring ; and chiefly in the young, or in persons not much past the vigour of life. Oppression and uneasiness of breathing are first complained of ; occasionally only tightness about the chest, without cough or pain, is felt ; and sometimes cough with pain, aggravated by a full inspiration, and inability to lie down, irom in- creased oppression of breathing, are experienced. In a few hours, seldom beyond twenty-four, the dropsical swelling makes its appearance — com- monly in the face, and descending downwaids to the trunk and lower limbs ; sometimes in the legs ; and often in both the face and lower ex- tremities, nearly at the same time. The pulse is either a liltle accelerated, or of natural frequency ; but generally weak or unequal, or even irregular. The urine is scanty, high-coloured, and in some cases coagulable, but in others without traces of albumen. The bowels are usually constipated, and the tongue loaded. There are also |ieadach and thirst. If the effusion be not arrested by treatment, the swelling increases, and respiration becomes more oppressed, or even difficult; and the disease may terminate fatally in a few days, or be protracted to several weeks, or even months. This form of anasarca frequently attacks indi- viduals belonging to the dark races, upon re- moving to a cold climate, or when the perspiratory functions, which are extremely active in them, are suddenly checked ; and is generally attended with extreme dyspnoea, owing to a sub-inflam- matory and oedematous state of the parenchyma of the lungs, which olten become affected to the extent ot producing asphyxia. 123. The Diagnosis of this variety of anasarca requires attention, as the swelling of the face, and oppression of breathing, with the other symptoms referred to the ciiest, often existing without fever or acute pain, may cause it to be mistaken for efl^usion into the pericardium, or into the pleural cavities. But the nature of the affection will be manifest on auscultation. These symptoms generally proceed from active con- gestion of the substance of the lungs, and in some cases from a state of vascular action inter- mediate between congestion and inflammatory action, attended by more or less serous infiltratiTii of the parenchyma of the organ. That such con- ditions actually exist, to a greater or less extent, when the respiratory functions are disordered, is shown both by the stutho.-copic and the rat on :1 sii'ns, and by the appearances of inflammaioiy action, or congestion observed in fatal case-:. 124. B. 'i'im consecutive Jhrm of anasarca was noticed by several writers previously to J. P. FitANK, more especially by Stole and Plenciz. liut this celebrated physician first accurately de- scribed it about 1790, and subseciuently his pupil, GiiAi'ENoiiissEu and Dr. Wells. It has more recently been illustrated by the observations of seveial writers. It may occur after any of the exanthemata, but most frc(iueiitly after scar- lutina, of which it is rather a common sequela, than a consequence of suppression of either the eruption or the perspiration. It should not, how- ever, be supposed that anasarca is the only form of dropsy that appears after the exanthemata ; ascites, or hydrothorax, or even hydrocephalus, may likewise occur, and either of them may be complicated with anasarca. From a number of . cases that have come before me, I conclude — (a) that it is dependent on excrementitial plethora, arising out of the suppressed or imperfectly re- stored functions of the skin, ard other eliminating or depurating organs ; {h) that an incomplete or suppressed eruption will not occasion it, unless the internal secretions and excretions be also im- peded ; (c) that exposure to cold, or to a cold and humid air, or even to humidity alone, will favour its occurrence, although it frequently ap- pears without those aids, and even in very differ- ent states of the atmosphere ; (d) that it is more immediately induced by febrile or generally ex- cited vascular action, arising out of an impeded or interrupted secretion and excretion, and a consequent morbid slate of the blood (a), and in- crease of its fluid parts, accompanied by deficient power or tone of the extreme vessels and exhaling pores, either absolutely or relatively to the action of the heart and arteries. 125. Plenciz describes the anasarca conse- quent upon scarlatina as having been more fatal in Vienna, about the middle of the last century, than the original disease ; whilst Dr. Cullen states it to be a mild and manageable afl^ection. Its severity, probably, varies with the state of the pre- vailing epidemic. It is often the most severe when the cutaneous eruption and angina have been slight. There is some difference observed in the period at which it supervenes. Frank often met with it as early as fourteen days from the commencement of the fever; whilst, in other cases, it has not come on until twenty-eight or thirty-one days from that time. It commonly appears in from sixteen to twenty-four days, and is preceded by slight fever and languor. The sore throat and fever of the primary malady ge- nerally have partially or nearly altogether disap- peared, and the appetite begins to return ; but the bowels continue costive, the urine scanty and high-coloured, and the skin dry and harsh. Slight increase of the fever in the evening, the patient being morose and restless, thirst, and some- times pain about the throat, capricious appetite, and sickne?s, come on, and arc soon followed by oedema of the face, particularly of the cyeliils, whirli is greatest early in the morning, extending rajiidly over the body. With this extension of the anasarca, there are often symptoms of vas- cular fullness in the head, the patient becoming somnolent, torpid, and the pulse less frequent. In oilicir cases, syn.ptoms of effusion into the peritoneum, or into the pleura-, or upon the brain, or of an oedema of the lungs, are superadded, the two latter affections being attended by evidence of danger, occasionally as early as the third or fourth day. As the anasarca becomes general, or thus complicated, or even previously, the urine, which had been long scanty, assumes a still higher colour ; is turbid after standing, de- positing slight albuminous ffocculi, or resembling whey; is voided frequently, and in very sinall (luaiuity.and often with pain in tiie regiori of the bladder or in the loins, and vomitings. In some DROPSY OF CELLULAR TLSSUE — Asthilkic. 637 instances, the urine has a brown appearance, from the presence in it of some of the red particles of the blood. Frank likens it to the washings of flesh, owing to this circumstance. It generally coagulates more or less on tlie application of the usual re-agents. 126. In the less favourable cases stimptoms of danger appear from the third to the ninth day from the conimencernent of the oedema of tiie face ; but after twelve or fourteen days, they very seldom occur; convalescence often, under a ju- dicious treatment, having commenced or pro- ceeded far by this time. The danger in this form of anasarca depends upon its complications. — 1st. Upon active congestion, inflammatory action, or serous infiltration of the substance of the lungs, as in the primary form of the disease (§ 122.) ; dyspnoea, sense of oppression, constriction and anxiety in the chest, with dry cough and inability to lie down supervening, and indicating the nature of the couiplication : — 2d. On effusion on the brain, ushered in by headach, sickness, and vomiting; and evinced by dilated pupils, slow pulse, con- vulsions, strabismus, loss of sight, and other signs of acute dropsy of the brain : — 3d. On effusion into the pericardium, indicated by swellings of tlie face, neck, and hands, fulness of the veins of the neck, bloated countenance, irregular pulse, leipo- thymia, and fulness and tenderness of the inter- costal spaces, chiefly of the left side: — 4th. On effusion into the pleura;, sometimes also associated with some efl^usion into the pericardium, and the symptoms of hydrothorax :■ — and, 5th. On disease of one or more of the abdominal viscera, either with or without effusion into the peritoneum ; se- vere diarrhoea or dysentery occurring, and, whilst it carries off the dropsy, causing a chronic disease of the digestive mucous surface, occasionally with ulceration and its consequences ; or suppression of urine from congestion or inflammation of the kidneys taking place, and aggravating all the dropsical symptom- ; or obstruction of the liver superinducing an obstinate and dangerous form of ascites. 127. Anasarca consecutive of scarlatina is most frequent in children, and is rare in adults. Other eruptive diseases, beside this, give rise to dropsy of the cellular tissue, especially measles, ery-i- pelas, urticaria, miliary fever, and many chronic diseases of the skin ; owing not only to their suppression or retrocession, but aUu to impeded secretion, and to the consequent ex( icmentitial plethora often attendant, or consequent, upon them, ^^'hen it is consecutive of these diseas',-, it possesses either the sub-acute charac;er co n- mon in that following scarlatina, or the n.ore acute symptoms of the primary fcim. 128. C. Primarii asthenic anasarca is not so fie- quent as the preceding. It is even questionable whether or not the asthenic cases, usually con- sidered as idiopathic, are not depending either on structural change in an important emunc- tory, as the kidneys, or on obstruction about the right side of the heart, or conj^estion of the large veins and of the lungs.' There can be little doubt that many of them are thus connected ; yet some instances will present themselves, in which the asthenic state is primary, as far as can be ascer- tained. These are most likely to occur in persons living in cold, miasniatous, moist, low, imper- those of a lympathic or phlegmatic temperament, or who lead sedentary lives, and are insufliciently nourished ; in those who have experienced copious losses of blood, or are reduced by chronic or re- peated discharges, as by htemoriliagia, diarrhoea, dysentery, Sec, or who, whilst convalescent from severe exanthemutous or other fevers, have been exposed to cold and humidity ; and in persons under the influence of depressing emotions, or who have suffered some sudden alarm. This form of the disease may accompany retention of the menses, or chlorosis ; and it may supervene also, in debilitated states of the frame, upon obstructions of the catamenial or haBmorrhoidal evacuations. JNIany of such cases, however, will approach very nearly to the sub-acute form, and derive beneJit from evacuations. The cases of anasarca produced by terror, disappointment, surprise, mental distress, &c., and termed spasmodic bv Laxdre Beauvais, and some other writers, ap'- pear to belong chiefly to tliis variety. 'That these and simdar causes are sometimes followed by anasarca, cannot be disputed ; but I question the dependence of the disease on spasm. Even granting the existence of spasm, what are the parts affected by it, and how does it act ? Con- vulsions will sometimes occasion oedema of cel- lular parts; but they will also, during their continuance, sometimes remove the effusion, as observed by Dr. \Vells. The causes which are supposed to act by spasm, merely deranoe or inipede the circulation through the heart and lungs, occasionally also rer;dering the hepatic circulation more languid or difficult than natural, whilst they lower the vital tone of the extreme vessels, particularly in weak and irritable consti- tutions, and interrupt the excretory functions, thereby inducing the conditions of the vascular system most favourable to the occurrence of serous effusion. Cases rapidly produced by fright have been recorded by Tissor, Desessart, L'eauchene, Bresciiet, Bateman, and otiiers ; and numerous instances connected with disor- dered or delayed menstruation, and the exhaust- ing diseases mentioned above, have been adduced by Plater, Riedlin, Fore^tus Piso, Willis, Eller, Hoffmann, Saovages, Leib, Melitsch, and later writers. 129. Asthenic anasarca generally appears slowly, and with all the signs of debility and laxity of the soft solids : whilst the sthenic dis- ease often forms rapidly, and with many of the symptoms of fever, or increased action. The infiltration usually commences in the lower ex- tremities ; sometimes in the face, or in both ; slowly extends over more or less of the body ; and is most remarkable, as well as most early, in those parts of the cellular tissue which are the most lax, as the eyelids, genitals, &c. The pulse is small, soft, and occasionally slow ; the skin be- comes paler, whiter, and colder than usual. The surface pits much more easily on pressure, and retains the impression loni;er than in the acute or sub-acute forms. At first, the infiltration of the lower extremities is most remarkable at night, and nearly disappears in the inornini'; but it subsequently returns earlier in the day, and to a greater extent, and is incompletely or paitially dispersed by the horizontal posture; the reverse taking place as to the oedema of the fectly ventilated, and dark places j particularly in J face. Ultimately it becomes much more con- DROPSY OF CELLULAR TISSUE— Treatment. siderable, more general, and more permanent, sometimes with signs of coincident or consecutive effusion into one or more of the serous cavities. But the collection is very rarely so great, or so complicated, in primary asllienie anasarca as in the symptomatic. The urine is in small quantity, and seldom contains albumen. The bowels are either sluggish or irregular ; more commonly the former. 130. D. Symptomiilic anasarca may present either acute, sub-acute, or chronic characters. But it is most frequently chronic, passive, and asthenic, and nearly resembles the primary asthenic variety now described, as respects the constitutional powers. \Vhen, however, anasarca is complicated with, or consecutive on, acute diseases of the lungs (§ 29.), it is also acute or sub-acute ; but it is rather, in this case, a con- comitant effect of the exciting causes of the pulmonary disease, than a symptomatic affec-. tion. Organic changes of the heart and kidneys are the most frequent sources of symptomatic anasarca. I shall, therefore, notice this com- plication more closely than the others. — (a) Anasarca generally supervenes on chronic lesions of the heart, and especially towards the close of life ; usually commencing in the face, particu- larly in the eyelids, and upon rising in the morning. Sometimes the ancles begin first to swell, and occasionally both the face and ancles — the former in the morning, and the latter in the evening. The inliltration gradually increases and extends ; effusion into the pleura;, or into the pericardium, or into both, also taking place eitlier simultaneously or subsequently. 13L (b) Anasarca caused by disease of the kidneys is very seldom seen unassociated with. effusion into one or more of the serous cavities. It is, when thus complicated, attended by pain in the loins, by sickness, vomiting and diarrhoea : it usually commences in the lower extremities ; and is commonly in consequence of irregular and drunken habits, or of the scrofulous dia- thesis. It is very liable to recur, and is seldom permanently removed {§ 34.). Anasarca is also sometimes a consequence of chronic disease of the lungs, particularly chronic' bronchitis, bronchor- rha'a, chronic plearitis, and tubercular phthisis. In these cases, the infiltration commences either in the face or in the lower extremities, only oc- casionally extends as high as the thighs or hips, and seldom becomes general ; but is often asso- ciated with effusion into the cavities of the chest. Organic changes of the liver and uterine organs but rarely occasion anasarca, until after effusion into the cavity of the peritoneum. The ob- servations alreiidy offered respecting the con- nection of dropsy with disease of the blood- vessels and lymphatics {§ 27.) are entirely appli- cable to this species of the disease. Although complete obliteration of one even of the largest venous trunks has taken place, serous effusion will not necessarily follow, especially if a col- lateral circulation be established. A remarkal.'le instance of this is recorded by INlr. W'iison, where the vena cara was entirely oljslructed, but no vestige of serous effusion existed, — evidently proving that other pathological conditions, beside venous obstruction, are requisite to the occur- rence of effusion ; wiiilst in the case of obliterated cava published by Laennec, ascites and anasarca of the lower limbs existed. Of the agency c." disease of the vascular systems in causing local or partial anasarca, sufficient notice has been taken (§ 25. et seq.). The causes, morbid appear- ances, and prognosis, in anasarca, have been de- scribed under these heads in the early part of this article (§ 8. 14. 37.). 132. iii. Treatment. — 1st. Of partial or local Anasarca. — After removing the remote causes (§ 8.), the next object that we have to attain, is to restoie the natural secretions and excretions, when any of these are in fault, and to remove the pathological state on which the affection depends. 'I'he restoration of the secretions will be attempted by the means appropriate to those chiefly disordered, — by purgatives, diuretics, dia- phoretics, deobstruents, &c., as the intestinal, the renal, the perspiratory, and the biliary secretions, may indicate more or less of disorder or of inter- ruption. If the oedema depend upon the arthritic or rheumatic diathesis, after the use of these means, colchicum internally, and iodine exter- nally, may be prescribed, and aided by the sup- port of bandages : if it proceed from amenorrha'a, or the final disappearance of the catamenia, a moderate bloodletting, general or local, should precede the means directed to act on the secre- tions. In many of such cases, as well as in others where there is no obstruction to the cata- menia, particularly in females who have had children, or who are subject to constipation, and faecal accumulations in the large bowels, the femoral veins are either chronically inflamed, obstructed, or varicose. Their course should, therefore, be carefully examined ; and if any hardness or tenderness exist, leeches ought to be applied. In old or chronic cases, however, the veins will either feel hard and obstructed, without much pain, or they will be nearly oblite- rated, the superficial vessels being distended and varicose, and tlie surface of the limb sometimes purplish or dotted with dark red spots, cold, tumid, and unyielding to the touch ; pain and stiffness being referred chiefly to the lower part of the leg and ancle. In several such cases, I have prescribed, with marked benefit, deobstruent purgatives, the biborate of soda, and iodine ; causing the patient to wear a laced stocking, and to have frequent recourse to frictions. Be- nefit will be derived also from frictions with mercurial liniments, united to one of those about to be refeired to; Jiiid from a course of bitter aperient medicines. W li-n the disease of the veins is conntcted with n.urked debility and weak powers of digestion and assimilation, gentle tonic>, chalybeates, frictions witli stimulating and deobstruent liniments (§ 65.), will accelerate a cure. (See Phlegmasia Dolens and Veins ; — Diseases n/.) 133. The connection of oedema with amenor- rhaca, independodhj of obstruction in the veins, re- quires a persevering internal use of iodine, or of the biborate of soda, with tonic aperients, or the compound decoction of aloes, &c., preceded by general or local depletion when signs of ple- thora or internal congestion are present. But when there are chlorotic appearances of the countenance and surface, or irregular manifest- ations of hysteiia, with great mobility of the mus- cular, and susceptibility of the nervous, system ; a weak, soft, open, or uuduhiting pulse j and DROPSY OF CELLULAR TISSUE — Tkeatmekt. 639 especially if the catamenia have not appeared, or I having; imperfectly commenced, have disappeared ; [ the disorder may have been induced or per- j petuated by raanustupratio, and require from the commencement a tonic and stimulating treatment, and tlie liberal use of the preparations of iron. When aperients are necessary, the compound de- coction of aloes with ihe compound mixture of iron ; and the pii. ferri comp. wiih the aloes and niyirh pill, or with aloes only ; are amongst the best. 134. When oedema of the lower limbs depends on the pressure of the gravid uterus, cooling tiperients, especially the confection of senna with cream of tartar, small bloodlettings if there be vascular oppletion, a light diet, the recumbent posture, pure air, and patience, are the chief re- medies. U'lieii the local anasarca is caused by the pressure of enlarged or diseased glands, mer- curial deobstruents, internally and externally, the preparations of iodine, or the ioduret of mercury, may be used, and the secretions and excretions promoted and duly evacuated by deobstruent pur- gatives; or with a combination of tonics and aperients. The taraxacum with the alkaline car- bonates, and either the liquor potassae, or the bichloride of mercury in very minute doses, taken in the compound decoction of sarsaparilla, or in the concentrated preparation of Jlessrs, Savoky and Moore, have been of essential ser- vice in several cases in which I have prescribed them. 135. 2d. Of general Anasarca. — A. Of pri- murii acute and t.iib-acute anasarca, little be3'ond what has been advanced respecting the tieatment of acute dropsies (§ 40, 41.) need be here stated. If any difference in the measures is at all admis- sible, it respects merely a more energetic adoption of depletion, and a greater necessity for repeating it, in this than in any other species of dropsy, especially in its acute states, occurring in young, plethoric, and robust subjects. The instructive case published by Dr. Grahaim is an excellent illustration of this practice. When the patient complains of pain in the loins, and the urine is very scanty, or nearly suppi'essed, general bleed- ing will often be advantageously followed by cupping on the region of the kidneys. In addition to vascular depletions, the same remedies, espe- cially purgatives or ca(/(art(cs, directed in nearly the same succession and manner as described at the places referred to, and at § 55., should be employed; and lastly, rfun-ff/cs, associated in the way there advised, may be resorted to. It is ob- vious, however, that the extent to which the anti- phlogistic treatment should be carried, must de- pend upon the nature of the case, and the acumen of the physician in detecting those latent states oi active congestion, or of increased organic action, to which acute dropsies so often are owing. 136. B. In consecutive acute anayirca, appearing in the manner described ($ 124. et seq.), a nearly similar treatment to the above, in a less active form, however, in many cases, will be required. The sources of danger, in this form of the disease, particularly when it follows scarlatina or measles, should always receive attention ; and the remedies ought to be so directed as to prevent their acces- sion. The directions already given (§ 40.) respect- ing general or local bleedings, should be strictly followed; and active counler-irritaiion and ex- ternal derivation, — as the application of a laree blister upon the nape of the neck, or between the shoulders, — be afterwards resorted to, e3])(;cially if symptoms of cerebral oppression, or of affection of the thoracic organs, manifest themselves. If tenderness on pressure be felt in any part of the parietes of the chest or abdomen, or of the region of the heart, inflammatory irritation in the plcuraj, peritoneum, or peiicardium, should be dreaded, and local depletions at somtr distance fi-om tlie seat of pain, followed by external irritants and deriva- tives (§ 57.), be prescribed. If sickness and vomiting come on, an inflammatory affection of the head should be suspected, and be treated by active depletion and cathartics. In some cases, however, the vomiting depends upon disease of the kidneys ; attention, therefore, should be paid to this circumstance. When diarrhaa is present, the supervention of ascites, or the existence of lesions of the kidneys, is to be feared. ^Vitllout suddenly checking this discharge, means should be used to moderate it if it be caused by iuflanmiatory ac- tion, and to evacuate offending matters if it seem to proceed from this cause. Leeches should be applied to the abdomen or its vicinity — to the anus or sacrum, if there be tenesmus — and be followed by hot fo.iientations, especially the terebinlhinate ; and, if the evacuations be offensive, scybalous, knotty, &ic., a full dose of castor oil, or any other purgative, as calomel and jalap, «Scc., should be taken, and a full effect be prom.oted by purgative .or laxative and emollient enem.ata. Afterwards digitalis may be exhibited, with liquor aminoniaj acetatis, infus. taraxaci, and syrupus scillae ; or the ammoniated spirit of colchicum rnay be given in a similar form. 137. In all cases, of both the primary and consecutice disease, the propriety of acting upon the secretions and excretions should be kept in view. In the former state especiall}', the cathar- tics, particularly those wiiich act as hydra gogues, Siselalerium, croton oil, the euphorbia lathyris, and others enumerated above (§ 66.), may be pre- scribed with due cautiorr; but in the latter form, the common purgatives, as calomel and jalap, or the infusion of senna with some neutral salt, will be sufKcient. The restoration of the cutaneous functions should be a chief object in the treatment of consecutive anasarca. \Vith this intention, tepid bathing in acute cases, when the temperature of the surface is increased ; and warm bathing (Aaskow) in the sub-acute ; and the various me- dicated baths already noticed ; may be directed, dud be followed by gentle friction of the surface \Mih warm oil, as advised by Sciimidtmann ; or with sweet oil, as used by Oliver, Sec. ; or with almond oil. I have adopted this treatment in several cases of anasarca following scarlatina, and seen benefit derived from it. As to the use of diuietics, it is unnecessary to add to what is stated in olherplaces ({ 71.) respecting them. 138. 3d. In Primary Asthenic Anasarca, the preparations of iodine, the ferrum tartarizatum, with cream of tartar ; the balsams and terebin- thinates ; sulphur ; the association of tonics with purgatives and the warmer diuretics ; chaly- beates ; and the rest of the tonic treatment recom- mended above (§ 42, 43.); are chiefly to be depended upon. In many cases of this descrip- tion, the preparations of digitalis or of squills maybe added to bitter vegetable infusions and 640 DROPSY OF CELLULAR TISSUE — Treatment. decoctions, and some one of the neutral salts; and cantharides may be tried, as advised by Chalmers, Alix, &:c. Tlie following also may be employed; the first of which has been re- commended by M. Dumas, the latter by Mr. Sprague : — No. 187. B Antimonii Pufver. gr. xx. ; Croci Martis Aperit. gr. xxv. ; Pulv. Scilla; gr. xij. ; Gum. Amraoniaci 5j. ; Extr. Dulcamara 3ij.; Olei Juniperi q. ». M. Contuiido in massam irqualem, et divide in Pilulas Ix., quarum c ipiat duas vel tres bis tc-rve in die. No. 188. E Decucti SpartU Cacum. (F. 7o.) 3 x. ; Po- tassa; Acet. 3 ij ; S]iirit. .Ether. Nit. et Tinct. Lavand. Comp. aa .5j. M. Fiat Haustus ter in die sumendus. No. 189. H Dccocti Scoparii 3x. hiq. Ammonis Ace- tatis 3ss. ; Spirit. iEther. Nit. 3j.; Tinct. Scilla? 3ss. ; Tinct. Capsici ll] x. M. Fiat Haustus ter die caplendus. 139. 4tli. The Symptomatic, Chronic, or Passive states of Anasarca, require the same intentions and means of cure as have been already stated (j4A. et seq.), h\xt with a strict reference to the nature of the organic change with which it is connected, as far as that may be ascertained. Anasarca dependent upon disease of the liuigs is sometimes benefited by local bloodletting, but the practice requires the utmost discrimination. It is seldom admissible in aged patients ; but in tiie younger and more robust, and when the pul- monary disease consists of active congestion or inflammatory action in the substance of the organ, or if the congestion be associated with obstructed circulation througii the heart, moderate local de- pletions, repeated in the more acute cases, will be of service: w!ien anasarca follows chronic bron- chitis, or tubercular phthisis, it will seldom be pro- ductive of benefit, and in the former may be inju- rious. External derivation, actively and perse- veringly employed, is more generally appropriate. In this form of the disease, the preparations of colchicum or of digitalis cautiously exhibited, and the rest of the treatment directed in the manner described above (§ 49.), will afford more or less relief. 140. AVhen the disea.se of the heart, associated with anasarca, is of an active kind, and the patient is plethoric or robust, local depletions, followed by hydrat^ogue purgatives and digitalis are requi- site. But, if it be of a pas.sive or atonic kind, an opposite practice is indicated. The particular re- medies that may be used in these cases have been j fully stated (§45. ei seq.). If the liuer be diseased as well as the heart, the prolonged and daily use i;f deobstruent purgatives {§ 66. et seq.) and diuretics; the alkaline carbonates, with extractor decoction of taraxacum ; a discriminating use of mercurial jiurgatives; calomel with digitalis, as advised by Wiedemann ; cream of tartar with sul- phur and biborate of soda, as recommended by PiDKuiT ; and the ammoniated preparation of colchicum, with the carbonates and bitter infu- sions, and some diuretic tincture of spirit ; will be productive of advant:ige. When the effusion derived from the practice. But when these organs are manifestly diseased, no permanent good effect can be expected from medicine. The connection of anasai-ca with uterine disease requires but little additional remark. The means already de-ciibed (§ 53.) are quite appropriate to this species of dropsy. When, however, hys- teria is present, the more cooling tonics, as the decoction of cinchona with the liquor ammoniaj acetatis, nitre, and the nitric ffither ; or vegetable bitters, with alum and opium, as advised by Leib ; tonic infusions with an alkaline carbonate, nitrate of potash and squills, &c. ; will generally be serviceable. 141. The treatment now described will require constant modification, in respect both of the association of diflerent classes of medicines, and in the combination of those possessed of analogous properties — as regards conjoining tonics with purgatives, or various diuretics one with another. 1 he remarks offered above, as to the numerous medicines which have been employed in dropsies (§ 54. et seq.), will assist the practitioner in select- ing from, amongst them for the removal of anasarca, whether this species exist simply', or in conjunction with effusion into one or more ol the serous cavities. Thepyrola umbellata, recommended by Dr.SoMER- viLLE, and more recently by Dr. Bkatty and Dr. Seymour; and the lireruort, employei in the manner pointed out by Dr. Siiortt, should be duly tried. 142. The propriety of having recourse to sca- rijicalions and punctures has been much ques- tioned. But it entirely depends upon the circum- stances of the case, and the manner of making them. When the limb is cold, pits deeply, and retains the impression long; when the patient is old, and, from the irregularity of the pulse, &c., probably has ossified ai'teries ; and when livid or daik spots appear in the extremities ; scarifications will be attended by much risk of being followed by sloughing sores, although acupunctiiration may be substituted with advantage, as recommended and employed successfully by l\lr. Churchill. Indeed, this seems to be the preferable mode of at- tempting to evacuate the collected flui, Obs. Chirurg. fasc.i. — Sauvagcs, Nos.M^th. vol.ii. p. 470. — T/iilcn/7/s, Med. u. Chirurg. Bemerk. p. 168. — C/ieston, Philos. Transac. 1780, p. 323. .578. ( Thoracic duct ohliler- alcd.) — Bang, in Act. Reg. Med. Soc. Ilaun. vol. iii. p. 118. — Aaskow, in Ibid. vol. iii. art. 15. — Hartmnnn, De Anasarca, Lac Sulph. et Acid. Sulph. &c. Fr. 1787 — Dove, in Edin. Med. Comment, vol. xviii. p. 13.5. — Tox- zelti, Kaccolta, &c. No. 4. (Recommends blisters in the anasarca consequent on scarlatina.) — Tode, Med. Cliir. Biblioth. b. v. p. 432.— J. P. Frank, De Cur. Horn. Mor- bis. 1- iii. p. 75. — Chabners, On the Dis. of South Ca- rolina, vol. ii. p. 20 I'iensseux, in Journ. de Meil. Con. tin. t. iii. p. 3 Leib, in Philad. Transac. vol. i. p. 1 — Marcus, Magazin fiir Spccielle Therapie, b. ii. p. 342. — Melilsch, in S/aWr's Archiv. b. iii. p. 724. — Beauchine,m Journ. Gener. de Med. t. xxxii. p. 371. — U'ind?nann, in Hufelandu. Him/i/'s Joarn. d. Pr. Heilk. Oct. 1809.— Sa'ckenreuter, in Allgem. Med. Ann. Mart. 1811, p. 243. — Desscssart, Recueil de Dissert, et Ob.serv. de Med. Prat. Paris, 1811. —J. Wilson, in Trans, of Soc. for Imp. of Med. and Chir. Knowledge, v.il. iii. p. 65. — W.C.lVells. in Ibid. p. 167. et 187.— iJ.C. F.Harlcs, De Hydr. Inflam- matorio, in Opera Minora, vol. i. p. 339. — Gairdiier, Ed. Med. and Surg. Journ. vol. xiv. p. 479. — Steele, in Ibid. vol. xvi. p. 545 Landre-Bcauvais, Diet, de Med. t. ii. p. 192 I.aennce, Archiv. Center, de Med. t. vi. p. 619 — Koenig, in llufeland's Journ. July, 1829. ; and Archiv. G^ner. de Jled. t. xxi. p. 449 I'enables, in Lond. Med. Gazette, vol. v. p. 397. — Beatli/, in Trans, of Assoc. Phys. of Ireland, vol. iv. p. 23 J. Bouillaud, in Diet, de Med. et Chir. Prat. t. ii. p. 320. {See also the Bibliography AND References to Drojisies in Genere.) VII. DnopsY OF THE Cavitils of the Chest. 143. Uefin. — Sense of oppression in the chest ; nrgent ditspnxa on exercise or in the horizontal posture; livid lips: a:dematoiis countenance and extremities ; iceak, small, and irregular pulse ; dis- turbed sleep, 7vith sudden sturtiugs, (Sfc. 144. As dropsy of the pericardium is so very generally connected wlili more or less effusion into the cavities of (he jileurce, that we seldom find the one without the other, ailhough in vary- ing grades and relative proportions; tfnd as the former, as well as the latter, is a very frequent conseciuence of structural change in the substance of the lungs, or in the pleura?, or in the heart itself and its valves; I shall, therefore, describe them as species of the same genu>. The difficulty, also, of determining whether the fluid is chiefly, or altogether, in the pericardium, or in the pleurae, even in cases where it is limited to one only, is an additional reason for considering hydro-pericar- dium and hydrothorax in connection with each other. It is principally, however, when the eflfu- sion is symptomatic of structural lesions of the thoraric viscera, or of a more generally morbid state of the frame, that we find them co-existent, and without any remarkable prepondeiance in favour of either the one or the other. IJut when effusion is the more immediate result, or the se- quela, of inflammatory action, or of a state of organic action, closely allied to inflammation in either the pericardium or pleura;, it is generally limited accordingly, and it often accumulates to a very great extent. i. IJiiOPSY OF the Pericardium. — Syn. Hijdrops Pericardii, Hijdro-pericardii, Hiidro-pericurdia, Hydro-pericardium (from l&uf, water, and TTspUap^iov, pericardium) of Authors; Herz- heutelwassersucht , Germ. ; Hydro-ptricarde, Fr. Dropsy of the Heart, Eng. voL.i. DROPSY OF THE CHEST — Pathology of. G4 J 145. Defin. — Oppressive dyspnaa, with a sense of weight and tremor referred to the region of the heart ; anxiety ; inability to retain the supine pos- ture ; iveak, irregular, or intermitting pulse; livid and (edematous countenance ; distension of the Jugu- lar veins ; leipothymia ; fulness of tlie epigastrium, and of the anterior intercostal sjiaces ; percussion emitting a dull sound, and auscultation furnishing a faint and diffused sound, over all the cardiac region. 146. A. It is obvious that pathologists ought to agree as to the least quantity of fluid in the peri- cardium that should be considered to constitute dropsy of its cavity. Vesai.ivs states, that it always contains a small quantity of water in health, and that he had observed it in criminals who had been quartered while alive. Lower en- tertains a similar opinion. ¥. Hoff.mann, how- ever, comes to a different conclusion ; he having observed no fluid in the pericardium of healthy animals; whilst Littre found some in the ani- mals on which he experimented. Hai.i.er believes that this cavity contains a fluid destined to facili- tate the functiorisof the heart, but gives no opinion as to its quantity, in health. He remarks, that it may be greatly increased in various diseases, and that it maybe absorbed, (L7eHif)((a Physiol. &;c, 4to. vol. i. p. 292.). Senac infers that, in the natural state, the pericardium contains no fluid ; he having found none in several cases in which this membrane and the heart were both healthy. Corvisart, Testa, J. P. Frank, Kreysig, Ber- TiN, Louis, Elliotson, Hope, &c., appear to have adopted the opinion of Haller, in considering that this cavity always contains a little fluid ; but they differ in some respects as to the amount which should be viewed as constituting dropsy of it. M. ConvisAHT believes that, when it reaches six or seven ounces, hydro-pericardium exists. This inference has been adopted by Pinei,, Ber- iiN, Elliotson, and flopE, who think that this quantity will give rise to symptoms indicating, although with great uncertainty, the seat of ef- fusion ; whilst L'iE^^jNec concludes that double or triple this quan:i.ty may not admit of a correct diagnosis. Muclt, however, will depend upon the rapidity of its collection, and the nature of the pathological states either causing it, or con- nected with it. A larger quantity than that now named, has sometimes accumulated without having induced such symptoms as could enable the practitioner to decide as to the exact nature and seat of the disease, particularly when chronic affections of the lungs or heait have accompa- nied it. 147. From one to five or six ounces of fluid are sometimes found in the pericardium, in several maladies either of adjoining or of remote organs, especially in persons who have died of phlhi-is. This collection, obviously greater — at least, the higher amount — than exists in health, seldom gives rise to specific symptoms, although the larger quantity may occasion much disorder. It may, indeed, form very shortly before death, and may merely be contingent on the changes imme- diately preceding dissolution, particularly when the malady destroys life by asphyxia, or when congestion of the lungs and di'-order of the respi- ratory actions have been present for a short time previously ; and its amount may even be increased subsequently to the fatal issue. When fluid collects Tt 642 DROPSY OF THE CHEST — P^TiiOLOGY of HYDno-pERicAnDiuM. in the pericardium to an extent obviously consti- tuting dropsy, and calculated, from its influence on the functions of the heart and lungs, to be the chief lesion by which life may be abridged, it will give rise to a certain train of symptoms, ge- nerally indicative of the presence of water within the chest, although not always of its precise situ- ation. The quantity that may admit of detection, in this situation, cannot be stated absolutely. The existence of eight or ten ounces, or even of a smaller quantity, may be ascertained, in some in- stances ; whilst in others, nearly double the amount may not be recognised witli precision, as Frank and Laennec liave truly contended. 148. jB. It is important to know the pathological states on which effusion of Jiuid in this sitiuition depends, and the conditions of life and of organis- ation liuth U'hich it is connected. These points have been but imperfectly ascertained ; but, from some attention I have paid to the subject, I believe that they may be referred to the following : — 1st. Tiie efiusion may be one of the more immediate re- sults of inflammatory action (see Heart and Peri- cardium— Injiammation of), in some instances; and, in others, a remote sequela of this disease. — a. In this case it generally forms more or less rapidly; may not be attended by any or much effusion or inflammatory appearances in the pleural cavi- ties, although it very frequently is so asso- ciated ; and it may accumulate to a great extent. The instances referred to by Corvisart, Frank, and others, in which several pounds of fluid were found in the pericardium, seem to have been of this kind. Tiie nature of the disease, in this variety, may generally be inferred with some accuracy, when the effused fluid amounts to more than six or eigiit ounces, — from ante- cedent symptoms of inflammatory or acute dis- ease referrible to the region of the heart, either previously to, or attending, the eff'usion ; from urgent anxiety at the przecordia, with continued jactitation ; from a dull sound being emitted by percussion to a greater or less extent over the cardiac region, and a faint and diffused sound being furnisiied by auscultation ; from the mo- tions of the heart being perceptible beyond tiieir ordinary limits, tiie impulse being undulatory, unequal, and felt at various points ; and when the accumulation is great, from a marked fulness in the epigastric region, occasionally with a vibra- tory pulsation, and with fulness of the anterior intercostal spaces of tiie left side, or with some degree of external a>dema in this situation. In some instances of this form of the disease, these symptoms suddenly supervene, and are attended by oithopntea ; small, frequent, irregular, inter- mitting, and weak pulse ; syncope or leij)otliymia, followed by slight fits of obscure palpitations, distension of the jugular veins, bloated livid countenance, and cold extremities. — A, On dis- section in these cases, marks of inflammation are observed in the pericardium, witli thickening and sometimes with lymph adhering to its surface, or floating in the fluid in filaments or in the state of albuminous flocculi. Occasionally the fluid is serous and tuibid, resembling whey ; or albuminous, or sero-])uriform, or nearly puru- lent, or even sanguineous. In these, the rapid effusion of fluid appears to be owing to the sud- den loss of the tone of the extreme caj)illaries and eximlants ; the increased and morbid action of the vessels supplying them still continuing, sometimes connected with an unhealthy state of the system. — c. This form of pericardiac dropsy may exist either alone, or it may be complicated with, or consequent upon, pleuritis, or pneumonia, or acute bronchitis ; or may be connected with the rheumatic or gouty diathesis, and be even a me- tastasis of these maladies. 149. 2d. Fluid may be effused in the pericar- dium, as in other serous cavities, by a slower pro- cess than that generally accompanying or following inflammatory action ; and be attended by a very different state of this membrane. — /(. In this class of cases, the eft'u-ion commonly depends upon impeded or disordered circulation through the heart or lungs, arising from a variety of organic changes of a chronic kind in these organs ; or upon structural lesions of the pleura ; or upon disease seated in the mediastinum, or in the large vessels. It is, in such instances, often connected with a leucophlegmatic, lymphatic, or dropsical diathesis, and debilitated frame. The fluid collects slowly, is accompanied by no local or constitutional symptoms of an inflammatory kind ; and the attendant disorder is aggravated by an anti-inflammatory treatment. When it reaches a very considerable amount, the patient feels a weight in the cardiac region, with pain in the back and loins; and if he be emaciated or thin, the im- pulse given to the fluid by the dilatations of the heart may be felt and seen between the third and fifth ribs. The sensation of the organ floating in a fluid, said, by some writers, to be felt by the pa- tient, has not been confirmed by my observation ; but the feeling communicated to the hand of the physician, by the stethescope, is frequently that of an impulse transmitted through a fluid, and an undulation is sometimes felt. In addition to these and the preceding symptoms (§ 148.), there are often a dry cough, leipotliymia, some- times followed by palpitation, which is occasion- ally violent; inability to use any exertion; a necessity of sitting up, and of leaning forward ; a cold, leucophlegmatic, or ocdematous coun- tenance, with lividity of the lips; cold and ana- sarcous extremities; lowness of spirits; emaci- ation, particularly of the trunk; scanty, red, and lateritious urine. Inability to lie in the supine posture is often an early sign ; although theTpatient may lie on either side. But this, like several of the other symptoms, is uncer- tain ; for some persons in health are incapable of retaining the supine posture even for a short time. The above phenomena are also incon- stant, owing to the nature of the primary or co-ex- istent lesions ; and, when present, they are often obscured by the more prominent symptoms directly depending upon these lesions. — b. On f//sser<(Vi», the ])ericardium is not reddened or in- jected ; it is somewhat paler, or whiter, than na- tural— occasionally of even a satiny whiteness ; but it is generally opaque, slightly thickened, and sometimes softened, and appearing as having been macerated in the licjuid it contained, — an appearance which has been doubted by Laennic. 'I'he Jiuid itself is usually colourless and limpid ; sometimes of a citron tint, or yellow ; and occasionally turbid, of a brownish, or of a greenish hue. — c. 'i'his form of the disease is seldom or ever met with unconnected with the lesions already alluded to; and is frequently DROPSY OF THE CHEST— Diagnosis and Causes of IIydro-peuicardium. 643 merely a part of a more general effusion of fluid, cither into otlier serous cavities — particularly the pleural — or into the cellular tissue, J. P. Frank could adduce only four cases from authors and his own experience, in which hydro-pericardium was not accompanied by some other change in the membrane or related organs ; and even one or more of these might have been tiius associated. Whilst this variety of the disease is chronic, and manifestly symptonwiic, the preceding is acute, at least in its early stages, but sometimes assuming a more chronic and passive character; and, although it cannot be said strictly to be idiopathic or primary, it may be viewed as a consequence of a morbid state of vascular action not altogether identical with the sthenic inflammation which takes place in a healthy constitution. I have seen several instances of it arising from metastasis of rheumatism to the pericardium, occurring in weak and unhealthy constitutions. 150. 3d. Fluid may be effused in the peri- cardium in a third form, but seldom to the extent of constituting the principal morbid change. It has been shown that the lesion givmg lise to the Jirst variety is chiefly seated in the pericardium, and is nearly allied to, although it is probably sel- dom identical with, the true inflammatory action, or phlogosis, of the internal surface of that mem- brane ; and that the second variety is caused by impeded circulation from organic change of the more immediately related organs, the effusion taking place in a similar manner to other symp- tomatic dropsies. — a. But the variety now about to be described, is an attendant upon A veiy dif- ferent and a more universal state of disease; usually comes on not long before death ; is a con- sequence of the generally perverted or alieiiated conditions of life, occasioning deficient vital cohe- sion of this membrane, and lost tone of the ex- treme vessels and exhaling pores, in which changes the rest of the organisation more or less participates ; and is frequently unattended by any prominent symptom. — b. It supervenes on the latter stages of some malignant or adynamic dis- eases, in the course of which tiie blood becomes contaminated by morbid matters, either absorbed from without, or generated in some part of the body. Thus, I have observed it in several cases of phlebitis, particularly in uterine phlebi- tis ; in the true malignant puerperal fever ; and in fatal cases of erysipelas, small-pox, and scarla- tina. It likewise takes place after wounds from dissection, and in carcinomatous and some other maladies. In all these, the pericardium only participates more or less in a similar al- teration taking place in other shut cavities, most frequently in the pleuraj, excepting in ady- namic puerperal disease^, when the peritoneum is also the seat of effusion to a much greater extent. — c. On dissection, the tissues are found soft, flabby, easily torn, and of a dirty or dusky hue. In these morbid states, the heart and pericardium participate, but tiiey are not in- flamed. The blood is often dark, fluid or semi- fluid, or grumous ; and the liquid effused is turbid, greenish brown, or brown, or sero-san- guineous, and seldom amounting to more than ten or twelve ounces. — d. In this variety of hydro-pericardium, the characters of the fluid, the state of the textures, and the manifest- ations of life, indicate that the vital cohesion, or the organic contractility, and tone, of the mem- brane, and particularly of the extreme exhaling vessels or pores, are lost ; and that the more wa- tery parts of the blood, with a portion of the smaller globules, and even of the colouring par- ticles, are thereby enabled to pass tiirough them. It is evidently one of the ultimate lesions produced by contamination of the circulating fluids, and of the soft solids, irt the manner pointed out in the articles Bi.ood (§ 132 — 152.), and Disease {§ 148.). (See also Heart, and Pericardium.) 151. C. Diagnosis. — The difficulty of distin- guishing dropsy of the pericardium from that of tiie pleuraj has been insisted on by every writer since jMorgagm. 'J'his has arisen from the cir- cumstances already alluded to ; from the very frequent co-existence of eflTusion into both these situations ; and from the extent to which the symptoms accompanying organic lesions of the lungs, heart, and large vessels, producing the effusion into the pericardium, obscure the phe- nomena caused by it. No opinion, therefore, can be formed from any one symptom ; and even that founded on a careful investigation of the history of the case, and of the tout ensemble of the phenomena, must still be viewed with some distrust. Early disturbance of the actions of the heart, and irregularity of the pulse ; a lesser de- gree of dyspnoea relatively to such disturbance (Morgagni) ; the sounds heard on percussion and auscultation ; the sensations depending on the motions and impulse of the heart, felt either by the patient or by the examiner, as that of the heart swimming in water (IlF.i.MANNand Saxdnia), and tliat of an impulse transmitted through a fluid ; a fluctuating tremor (Senac) and fulness either felt or seen at the epigastrium and anterior parts of the left intercostal spaces ; a sense of weight and oppression in the cardiac region (Lancisi); absence of the fluctuation upon concussion or succussion of the trunk observed in hydrothorax (RIorgagni) ; an irregularity in the situation of the heart's pulse, it being felt at different times, in different parts of an exten- sive circle ; oedema, or fulness towards the left side of the chest (Corvisart); coldness and oedema of the feet, legs, and hands ; and leipo- thj'mia and palpitations; have been severally insisted on, and are the signs most to be depended upon ; but there is not one of them that is con- stantly present, or, when present, that is caused by hydro-pericardium only. When effusion is limited to the left pleural cavity, as in the cases recorded by Mv. Hendehson and M. Desault, and in which paracentesis was performed, a cor- rect diagnosis is most difficult. 152. D. Causes. — These have been noticed in the description of the different slates of the disease, and are nearly the same as those giving rise to other forms of dropsy. The connection of hydro-pericardium with debility, especially of the vascular system, and with a softened and flabby state of the substance of the heart, is deserving of attention. I have seen it thus re- lated, both in children and grown-up persons of all ages, living in cold, low, and damp places, or cellars, especially after the eruptive fevers and rheumatism; and, according to Testa, it is most frequent in females, particularly after delivery ($ 150.). In the third form which I have described, it very often supervenes in the Tt 2 64-1 DROPSY OF THE CHEST — Prognosis and Treatmext of Hydro-pericardium. last stages of the more fatal diseases of the puer- peral state. 153. E. The PaooNosis raust necessarily be very unfavourable. Yet it should not preclude the having recourse to a protracted treatment, as life may be prolonged by judicious measures per- severingly employed, and a cure may eventually be effected, particularly when the effusion has been consequent upon inflammatory action, or tlie metastasis of rheumatism to the pericardium. The prognosis should entirely depend upon the form of the disease : it is unfavourable in the first-variety I have described ; much more so in the second ; and the worst in the third. 154. F. Treatment. — (o) The means of cure in the 1st variety should be the same as are ad- vised for inflammation of the pericardium, as long as signs of phlogistic action exist. But as soon as this lapses into a passive or an asthenic form, no benefit will result from lowering measures. Energetic derivation and external counter-irrita- tion ought then to be directed. In most of such cases however, unless the vital energies are very greatly reduced, calomel with camphor, and small doses of opium, or the bichloride of mercury with sarsaparilla, — the former carried the length of salivation, the latter of affecting the gums, — and a seton, or issue, or open blister, kept discharging over the margin of the left false ribs, will be pro- ductive of benefit. Whilst these are being em- ployed, the constitutional powers should be sup- ported ; and, if they be much depressed, medicines of a tonic and astringent operation, with light nu- tritious diet, ought to be prescrihed. Care must, however, be taken that inflammatory disorder is subdued in the lungs and pleura, when the effu- sion into the pericardium is thus complicated, before tonics or stimulants of a heating kind are administered. In such cases, the infusion of roses with small doses of the «ulphate of zinc, and sul- phuric acid, with digitalis, will be found the most appropriate, liut the main reliance must be placed upon external derivation. When the effu- sion has been consequent upon the metastasis of rheumatism, or of gout, active counter-irritation, the combination of colchicum with camphor or ammonia or with both, the alkaline hicarbonates or carbonates in full doses, and tonic purgatives, with the rest of treatment already recommended, may be employed. 155. (b) In the 2d varieiii, or that depending upon organic change in the heart, lungs, or large vessels, but little benefit will be derived from diuretics, or, perhaps, from any treatment that can be ado[)t,ed. I believe that lowering mea- sures, too generally resorted to in cases of this description, will only hasten a fatal issue. INIuch more advantage will be obtained from means which increase the secretions and excretions — the assimilating and eliminating processes. Very small and frequent doses of bliie pill, with a tonic extract, or the soap and opium pill ; bitter or tonic infusions and decoctions, with an alka- line carbonate, hyoscyamus, and extract of ta- raxacum ; an issue in the side, kept freely and long discharging ; and due attention to the de- velopment of vital power, by appropriate medi- cines, diet, and r.gimen, and a pure air, without heating or exciting the vascular system ; are the ino^t to be relied uj)on. 'i"he bowels and biliary secretions ought to be moderately acted on by medicines of a tonic, deobstruent, and laxative operation, which will promote vital power, vvhile they exert a derivative action on these \isctra. With this view, diuretics of an analogous kind may be added to the other remedies. The treat- ment of the 3d variety must entirely depend upon the nature of the primary disease, of which it is merely a remote consequence. The indica- tions of cure, in these maladies, and a review of the most eflicient measures, will be found in the aiticles Blood (^ 156. et seq.), and Debilitv (§37,38.). 156. (c) Parace)itesis pericardii. — The pro- posal of tapping the pericardium, made long since by llioLAN and Senac, and sometimes practised, is deserving of notice. It was attempted in the case published by Mr. Henderson, and in one of a siiuilar kind by M. Desault; the existence of hydro-pericardium having been inferred in both. Hut it was found, in both instances, that the fluid had been effused into the left pleura, from partial pleuritis, and that the pericar-dium adhered to the heart. An opening, however, has been made into the pericardium by Larrev, Rkherand, and Romero. The last-named physician punc- tured the pericardium, and drew off the accumu- lated fluid, in three cases; and in two with success. (See Diet, des Sciences Med. t. xl, p. 371., and Medico-Chirurgical Review, vo\. i. p. 477.) He made an incision between the fifth and sixth ribs (but between the fourth and fifth in a short person), and carried it through the pleura, lie then introduced his finger, and, iuiving thereby ascertained the presence of the fluid in the pericardium, he made an opening into it with small crooked scissius ; through this the fluid escaped into the left pleural cavity, whence it was discharged by placing the patient in a proper position. By this procedure, if the fluid be in this latter cavity, instead of the peri- cardium, as in the cases of Henderson and Desauet, the first opening gives it exit, an! nothing further is requisite. The plan of Dr. Romero possesses undoubted advantages, even in this last respect ; and he has accordingly prac- tised it in five cases of hydrothorax, and in three successfully. 157. It is evident that this operation can be productive of benefit only in those cases that belong to the Jirst variety, or that consequent on inflammatory action, when effusion fre- quently is limited to the pericardiac cavity. In states of the disease depending upon organic _ lesions of the adjoining viscera and parts, when the effusion is rarely or never so limited, no advantage can be hoped from an operation. In itself, paracentesis, whether restricted to a. sim- ple opening into the thorax, or exteuded to the pericardium in the manner practised by Dr. Romero, is attended by no greater risk than when it is performed on the abdomen. The chief dangers from it are entirely the same as those pointed out above (§ 105.), when discussing the propriety of it in this latter situation. The fears of danger froiu the introduction of the external air causing the collapse of the lungs, is not well founded. If the wound be care- fully closed after a deep expiration, the resi- liency of this organ, and the absorption of the air, will overcome the difficulty. 'J'he mischief is occasioned in a different manner, — by the DROPSY OF THE CHEST — Pat[iolocy of HvDnoTHonAx. 645 action of the air upon the inflamed or otherwise diseased membrane ; and lieuce the impropriety (and probable cause of failure in several eases) of leaving a canula in the opening, or of intro- ducing a tent sponge. I stale this from having seen this practice adopted in cases of paracen- tesis, and carefully observed the antecedent and consequent states of diseased action. I would, therefore, submit, when the last resource of an operation is attempted, that it should be per- formed with the utmost precautions against the introduction of the external air ; and that the opening should be carefully and accurately closed, and kept closed, instantly upon the dis- charge of the fluid ; and tiiat, instead of pre- serving an opening for its continued flow, the operation should be repeated when it becomes really necessary. (See Heart and Peiucar- BIUM.) BiBLioG. AND Refer. — Galen, De Loc. Af. 1. v. — Bar/Zwlin, Anat. Itefonn. 1. ii. p. 252. — I'iso, De Serosis Moib. Observ. et Consil. sect. iii. cap. 2. — Diemerbroeck, Op. Omn. 16S5, p. 615. — Riolanus, Antliropographia. Paris, 1649, I. vi. cap. 7. (liecumnienils to tap the pericar- (liuni.) — //. Saxonia, Piielect. Pract. pars ii.-cap. i. p. fil8. eS:c. t. ii. p. 304 Corvisart, Traite des Mai. du Cceur, &c. Paris. 1818, ed. 3d.— Testa, Delle Malattie del Cuore, &c. vol. iii. Bol. ISll. — Kret/sig, Die Krankheiten d. Herzens, &c. b. iii. Berlin, \S\'i .— H'ood, in Loud. Med. and Phys. Journ. vol. Ixi. p. 4U6. (Two quarts of fluid effused.) — Hennen, in Edin.Med. and Surg. Journ. vol. xvi. p. 539. (Eff'us. into pericard. only.) — Hen- derson, in Ibid. p. C^SB. — I.aennec, Auscult. Med. t. ii. p. 670. 2d. edit. ; etTranslat. by Forbes, p. 679 Hard, in Diet, des Sciences Med. t. xxii.p. 322 Merat,\\\ Ibid. t. xl. p. 370 Komero, in Ibid. p. 371 J. Frank, Praxeos Medics Univers. PriEcep. vol. ii. parts ii. sect. ii. p. 168. — Bayer, in Diet, de Med. t. xi. p. 394. — J. BouiUaud, Diet, de Med. et Chir. Prat. t. x.p. \t>'i .—Bert<)i,'YxA\ti des Mai. dn Cceur, ^c. 8vo. Paris, 1824. — Portal, Observ. sur la Nat. et sur le Traitement de I'Hydr. t. ii. p. 131. ii. Dropsv of the Pleural Cavitifs. — Syn. Fliidrothm-ax (v^wp, water ; S-aJpa^, the chest), Hi/drops Saccorum PleuriE, Auct. var. ; Dropsy of' the Pleura; Hydropisie de la Pui- trine, Ft.; Brustu'as!:ersHcltt, Germ.; Idro- pisia di Petto, Ital. ; Water in the Chest. 158. Defix. — Dijspiura and oppression in the chest,, increased hi/ tJie horizontal posture and ex- ercise, with oedema commencing in the eyelids and ancles ; startings from sleep ; the sounds on per- cussion being dull, and the respiratory murmur not heard on auscultation, 159. Hydrothorax has been divided into idio- pathic or primary, and siimptomatic. It is very rarely primary, as IM. Laennec has observed — that is, without pre-existing disease of the pleurae, lungs, heart, or lar-ge vessels. But it is often consecutive of increased vascular action, or in- flammatory irritation of the plcura», without any lesion of other parts, particularly when it follows the eruptive fevers: and it may be a termination of pleuritis, especially in the lymphatic or phleg- matic temperament, and in the cachectic habit of body. Its symptomatic or complicated states are tiie most common. As the consecutive hy- drothoi-ax, in all its forms, is generally acute or sub-acute, or possesses more or less of the sthenic characters, it will be considered as such ; whilst the symptomatic will be viewed as a passive, chronic, or asthenic disease. 160. ^. Acute and sub-acute Hydrothou ax ; Inftammutory Hydrothorax, Hydro-pleuritis, or Hydro-pleurisy, of Rayer. — That this form of pleural dropsy consists of increased exhalation from the pleura-, depending upon increased vas- cular action and determination to this surface, will be admitted; but that it is identical with inflammation, of an acute and healthy kind, may be questioned. The symptoms, local and con- stitutional, in hydrothoi'ax of the most acute kind, and in pleuritis — either the pulmonar'y or costal — are certainly not identical, particularly in respect of severity. Hence, although much similarity exists, as far as mere vascular injec- tion, or determination of the circulation, is con- cerned ; and although pleurisy may terminate in, or give rise to, serous effusion in many in- stances ; yet the kind of organic action affecting the pleurae, and the attendant constitutional dis- turbance, are not tlie same in both. The differ- ence has already been alluded to (§ IS.); but I may here add, that the formative processes — the kind and grade of organtc vascular action — cha- racterising pleuritis, are not observed either in the local lesions or in the constitutional affection of acute hydrothorax, unless when the ert'usion supervenes on external injuries and inflamma- lion, or is an earlier attendant on a modified condition of such disease. The consecutive states of acute pleural dropsy, as it may be studied after scarlatina, either dui'ing life, or in the mor- bid appearances, illustrate this view, and prove that there is, as respects both the conditions of the effused fluid, and the changes in the pleura;, a difference in the kind of organic action whence they have proceeded, frp.iu true inflatnmati'on, find that such difference is eviilently connected with constitutional causes. It is very common to observe that, when an attack or attacks of either pneutr.onia or pleuritis have been re- moved by treatment, a slight exposur-e to their exciting causes, or irregularities on the part of the patient, before the diseased vessels have re- gained their healthy tone and action, will give rise to a less acute, or a smothering, state of dis- ease, either attended by, or quickly terminating in, effusion ; the reduced powers of the constitu- tion, the lost tone of the exhaling pores, and the general or local excited action, favouring this par- ticular malady -T- this morbidly incrcase(l serous exhalation — in preference to any other. In this way acute or sub-acute hydrothorax super- veries on a state of the frame which has not recovered from previous disease — more particu- larly from eruptive fevers — or which has been impaired by age, excesses, or irregttlaritics ; the powers of life, and the organic action thereon depending, being insuflicieut to develope sthenic or plilogistic inflanrmatiiin. The injerences, th^n, from the causes, accession, phenoirjena, iind con» T t 3 646 DROPSY OF THE CHEST— Diagnosis of IIydrotiiorax. comitant changes observed in the aculc or sub- acute disease, are, that it is not identical vvitli healthy inflammation, although frequently so nearly allied to it as to appear either as a ter- mination, or as a lower grade, or as a modification of it ; and that it is often connected with, even although it may not be dependent upon, the nature of the preceding malady, in which the secretions and excretions have been interrupted, and not sufficiently restored. 161. Tiiat inflammation of the bronchi, or of the substance of the lungs, will sometimes be propagated to the pleuraj, generally in conse- quence of constitutional fault or injudicious ma- nagement, and give rise to effusion into their cavities, is well known ; that inflammation of the surface of the liver, or of the peiitoncum, or of both, will occasionally extend to the pleural, par- ticularly in debilitated or cachectic subjects, and, having reached this situation, terminate in effu- sion, I have often remarked ; and that the state of vascular action, whose siiniliarity or connection with true inflammation has been noticed, but whose identity with it has been denied, will occur in the pleurae in various states of sequence and of complication, has been a matter of daily observa- tion, and maybe readily illustrated from the pages of BoNET, INIorgagm, Stoli , Lepois, Lieutaud, Leroux, and many other of tlie writers referred to. In some localities, also, and during certain epidemics, it has been remarked that peripneu- inony has evinced a remarkable tendency to ter- minate in this manner. Dr. Romero states, that on the coast of Andalusia, hydrothorax and hy- dro-pericardium are endemic, owing chiefly to the prevalence of hot and humid winds, and sudden atmospheric vicissitudes, particularly among those who are ill fed, or live on unwholesome food, and are given to intoxication or irregularities ; and M. Pariset observed this form of hydro- thorax prevalent in Geneva, in 1803, — the E7mp- toms being so light that the patient's appetite and ability of attending to his affairs continued antil the pleural collection induced violent oppression. He states, that the number who died among the French conscripts was very considerable, — the ef- fused fluid being limpid and inodorous, and the pleura greyish and thickened, and the lung com- pressed, or condensed. 162. 1 he morbid appearances in the acute form of hydrothorax, whether it has been connected with inflammation, or active congestion of the substance of the lungs ; or has proceeded from a modified form of pleuritis, cither occuriing pri- marily, or consecutively on an eruptive fever, or after the suppression of some chronic disease of the skin, or of an accustomed discharge ; are usually the following: — 'I'he Jluid presents every shade of colour already remarked (§ II.) -^is sometimes turbid, muddy, reddish, sanguineous, whey-like, or sero-purulent ; but more frequently transparent, of a citron tint, with /ilaments or numerous albuminous (locculi floating in it. The membrane is internally reddened, or injected, thickened and somewhat softened, and occasion- ally covered by an albuminous, granulated, or tuberculous exudation. The lunga are generally conqjressed, condensed, hcpatised, or tubercu- lated ; and present appearances of chronic inflam- iiialion. 'J'he (v/i/sts of this Ioi'iti of liydrothor.ix are theuame as those described above (§ 8, 9. 19.). 163. jB. Symptomatic, passive, or compli- cated HvDROTiioRAx. — This state of disease is dependent upon some obstacle to the circulation of the blood, or lymph. Its connection witii dila- tation of the cavities ; with hypeitrophy, atrophy, &c. of the substance, and with alterations of the valves, ix.c. of the heart; has been long since pointed out by Bonet, Morgagni, Lieutaud, Meckel, Sandiiort, &c. Disproportion between the capa- cities of the cavities, ossification of the valves, and various other lesions of this organ, have been still more minutely examined in relation to the production of hydrothorax, by Corvisart, Laen- NEc, Testa, Krevsig, Bertin, and others. Varicose dilatation, also, of the veins of the lungs, and compression or obliteration of them, from chronic pneumonia, or tubercular and other pro- ductions, are sometimes the immediate causes of effusion. The dependence of this form of the disease upon alterations of the lymphatics, either in their glands or in their trunks, once so strongly insisted upon by the able pathologists already named in connection with this doctrine (§ 27.), although not improbable, has not been established so as to admit it otherwise than as an occasional, and by no means frequent, occurrence. 164. The Jluid eft'used in this form of hydro- thorax is commonly transparent, colourless, or of a citron tint ; in rarer cases, it is of a light brown, or reddish hue, or even sanguineous ; its quantity varying from a few ounces to ten or twelve pounds, in both the cavities. In some cases, a quantity of aeriform fluid is also present. (See art. Pleura.). On the evacuation of the serum, the pleural are generally observed to be sound ; or merely paler, or somewhat softer, than natural. When the accumulation has been great, the lungs are generally pushed up to the vertebral column, are hardly crepitous, and are occasion- ally pale as if macerated ; but they sometimes admit of being distended by insufflation, when they have not been inflamed and hepatised. In this form of the disease, effusion frequently takes place into the pericardium, as a coexistent result of the same organic changes; and occasionally some fluid is also found in the abdomen, or even within the head ; but more commonly in the cellular tissue, constituting a more or less com- plicated or general state of dropsy. M. Rayer justly remarks, that anasarca, hydro-pericardium, and ascites, are more frequently associated with hydrothorax when it is caused by organic lesions of the heart, than when it is consequent upon alterations of the lungs. 165. C. Diagnosis. — As hydrothorax is gene- rally produced by anterior disease, it follows, tiiat it will not become manifest until some days, or even some weeks or months, afterwards; or, in cases of organic change of the heart or lungs, not until a few days or weeks previously to death. Even with the aid of percussion and auscultation, small collections of fluid are ascertained with much difficulty, and are marked by the symptoms of the lesions that cause them. But when the ac- cumulation is considerable, it is generally evinced by phenomena which are proper to it. The patient feels an oppression and difficulty of breathing, great in proportion to its quantity. He generally lies upon the afflicted side, leaving the healthy one iiiiincMMdicrefl in its fuuclions. \VhiMi the fluid is in both cavities, the respiration is still more. DROPSY OF THE CHEST— Diagnosis oi HvDnoTHonAx, 647 difficult and sliort ; the patient sits up in bed, and calls in tlie aid of all the muscles of inspiration : his countenance assumes a cast of anxiety. ' Cou- \iSART describes the chest as being more distended, and rounded on the side which contains tiie fluid ; and, as the collection increases, the intercostal spaces are widened ; the integuments of tiiis side becoming oedematous, and, in a few instances, the arm on the same side. On percussion a dull sound is emitted, resembling tiiat produced by striicing the thigh on the side containing the fluid, or on both sides when efl'usion has taken place in both. ^Vhen the patient sits, or stands up, and the fluid only partially fills the cavities, the lower part of the thorax only will give out a dead sound. This sound generally changes its place with tiie change of position, owing to the gravitation of the water to tiie depending part. This, as jM. Pionnv con- tends, is an important diagnostic between the dead sound of efl'usion and tiiat produced by liepatisation of the substance of the lung, whicii always retains the same situation. In the acute states of the disease, a feeling of soreness, tender- ness, or pain, is often complained of in or over the seat of efTusion. 166. Upon auscultation, the respiratory mur- mur is found to have ceased in the region corre- sponding to the fluid collection ; and in its place is heard the tubular or bronchial respiration. In some cases aggophony is heard when the effusion is not very great. If the fluid be accumulated only in one cavity, mensuration of the thorax then becomes a useful mode of diagnosis ; but tlie increased fulness of one side, and widening of the intercostal spaces already noticed, may be recognised at sight. When the collection is very great in one side, not only is the lung com- pressed, but the diaphragm anil liver are pressed downwards ; and, if it be in the left side, the heart is pushed towards the right. Succussinn of the trunk cannot furnish any information, unless air accompany the effusion ; in which case fluctuation may be distinctly heard. (See Pleura, &c.) 167. Fuisive hydrothorax, in itself frequently occasions but little general disturbance, the func- tions of respiration being only mechanically dis- ordered by it, unless it exist to a very great de- gree. The lesions of which it is the consequence are the chief causes of both the constitutional de- rangement, and the disorders of the respiratory and circulating functions ; and, upon the nature of these lesions, the ultimate result more intimately depends, than upon the efl'usion itself. The great diversity of the primary alterations — whether seated in the lungs, or in the heart and large vessels — is the chief cause of the very great diff'erences remarked in the symptoms, and pro- gress of the malady. It becomes, therefore, im- portant to ascertain the nature and seat of these alterations — the true extent of associated dis- ease — on account of the diagnosis, and of the indications of cure. The early history of the case, and the immediately antecedent states of disorder, are among our guides in this inquiry. The in- vestij^ation of these should, therefore, not be over- looked. 168. (a) When the efFus'on has been conse- quent upon pneumonia, active congestion of tlie lungs, pleuro-pneumony, phthisis, or lironchitis, the oppression and dyspnoea, characterising the effusion, supervene without the irregularity of the pulse and palpitations attending the cardiac complication. Either in addition to the symp- toms of these diseases, or at an indefinite time from their partial or apparently total disappear- ance, the dyspnoea increases, particularly upon exertion; tiie patient requires his slioulders and head to be more elevated in bed than usual, and oedema is observed in his eyelids and feet. In this class of cases, the effusion is generally not very great, nor are the oedema and lividity of the countenance remarkable; but he is unable to lie on the side op|)osite to the effusion, which is most frequently limited to, or at least in greatest quan- tity in, one cavity ; and ultimately he is often unable to lie down in any position. A fatal ter- mination is commonly slow, and attributable more to the alterations of the lungs, which have been increasing with the effusion, than to the effusion itself. 169. (/)) When the accumalation of fluid has aris-n from organic change about the heart and large vessels, the oppression and dyspnoea at- tending it are associated with irregularity and in- termissions of the pulse, with leipothymia, pal- pitations ; very disturbed sleep, sudden startings, and frightful dreams; a livid and oedematous countenance, sometimes anasarca ; and sinking of the vital energies. The patient can often lie upon the side most affected, but, more commonly, there is fluid in both cavities, and sometimes in the pericardium also. When it is confined to both sacs of the pleura, he often lies upon his back : but, if all the thoracic cavities be affected, he sits up, leans forward, and brings all the re- spiratory muscles into action. The quantity of fluid collected is usually greatest in this class of cases ; and a fatal issue, although frequently de- layed or prevented for a longer or shorter time, is more apt to occur suddenly, particularly in fat or plethoric persons. But, occasionally, before this event takes place, tlie organic lesions of the heart superinduce congestions of the lungs, or brain, which may accelerate dissolution. Also, if, in either of these classes of cases, any important emunctory ceases to perform its functions, more especially the kidneys, whether from functional or oiganic change, the effused fluid may excite a low grade of inflammatory irritation or action iii the pleura, giving rise to a modification of the effusion itself, as well as to some of the changes observed in the pleura and lungs after death, and which have been too generally viewed as the ori- ginal disease, instead of being considered a conse- cutive and contingent occurrence. As to the state of the excretions in hydrothorax, they are generally either impeded or disordered. The urine is very different in different cases ; in the acute and sub-acute forms, it is commonly scanty, high-coloured, or deposits a thick lateritious sedi- ment, and often contains albumen, particularly when it is consecutive of eruptive diseases and suppressed evacuations, or associated with acute dis^jase of the lungs, but in the passive and chronic cases, itis often notmaterially diminished, and is seldom coagulable unless the kidneys be- come diseased. It should not be overlooked, that the primary lesions in hydrothorax are generally and often necessarily progressive ; and that to this circumstance, as well as to the increase of the ef- fusion, the exasperation of the symptoms and its fatal issue are to be imputed. (See also (4 29,oU). Tt4 618 DROPSY OF THE CHEST — Progn 170. D. PnoGNOsfs. — Tlie complicated nature of this malady, the advanced stages of the organic lesions producing it at which it supervenes, and the age and habits of those among whom it is com- monly observed, will always influence the prac- titioner to give an unfavourable opinion of the ultimate issue, although the results of repeated observation will induce him to inspire hopes of affording great relief. But every return of the effusion diminishes the chance of even partial re- storation. His opinion, also, will be founded on the nature and extent of the primary lesions, either of the lungs, or of the heart, &c., as made manifest by the auscultatory and rational signs. In every case, however, the prognosis should be guarded ; for, under circumstances apparently favourable, an unexpected change may occur from the pa- tient's conduct, or the progressive changes in the seat of disease : and his friends ought to be in- formed that, even in a state of no very apparent danger, he may be suddenly cut off. 171. E. Tbeatment. — 'Hie principles of treat- ment, so fully described in the early part of this article, are applicable to hydrothorax. In the acute and sub-acute states, bleeding, general or local — more frequently the latter — is required ; but it must be practised with caution. The results of experience will confirm the inference at which I arrived above, that, notwithstanding the close re- semblance of tile morbid appearances, in acute hydrothorax, to those of true inflammation, yet vascular depletions are not nearly so well borne in the former as in the latter, evidently owing to the differences, particularly constitutional, on which I insisted. J3ut the extent to which it should be carried, and mode of practising it, must entirely depend upon the nature of the original lesion, and the state of vital energy and vascular action. GenerjUy, when the lungs are acutely affected, and their substance congested, or when the lesion of the heart is of an acute kind, ^s ac- tive enlargement of its cavities, moderate depletion is both requisite and beneficial. But in the more passive states of the malady, our reliance must be placed on digitalis, and other diuretics, with tonics, &c. In many instances, where depletion — especially local — is obviously indicated, the propriety of supporting vital power, even at the time of unloading the vessels, or immediately aftervi'ards, by the exhibition of gentle tonics and diuretics, caniv^t be disputed, more especially when the vascular fulness, or morbid action, is secondary merely, and the consequence either of an excrementitial plethora, — in which cases, pur- gatives and other medicines calculated to act upon the emunctories, should be also employed, — or of the irritation produced by the properties of the retained fluid, (jeneral bleeding is but seldom requihitc in hydrothorax ; for a suHicient quantity of blood maybe taken by cuppintr, which possesses the advantage of ])roducing a levulsive or derivative action. On this account, I have prescrd)ed f/ii/ cupping, where the abstraction of blood was not indicated. In cases where congestion is superinduced in the lungs, or where hffirnoptysis occurs, cupping, or even dry cupping, if a most important part of the treatment, as- sisted by digitalis, acids, and external cnunler- inilation. I7'i. /ff'i:i(/,s(/)W.s are generally of great benefit, conjoined with antiphh logistic and diuretic reme- osis AND Treatment of HvDnoTiionAX. dies, in acute, and with tonics, &c., in passive, hydrothorax. Setons, or issues, near the margin of the false ribs, on one or both sides, are among the best modes of fulfilling this intention. Wendt advises them to be inserted in the chest ; and Ao- TENRiETH dh'ects a blister over the sternum to be kept constantly discharging. Cathartics, and purgatives, especially the hydragogues, above enumerated, often afford speedy relief ; but they are admissible only when the powers of life are not greatly reduced, and in the more acute cases. Diuretics are more certainly beneficial in this spe- cies,of dropsy than in any other ; and of this class digitalis is the most efficacious, particularly in the form of infusion, and when combined in the manner already shown. The praises bestowed on it by Lentin, VViniEniNG, Darwin, Hamil- ton, Frank, Maclean, Percival, and many others, have been generally acknowledged to be just. Squills rank next in utility; but they are not always appropriate, and are even injurious in some of the more acute states of complication, particularly in that with pneumonia oi' hydro- ])leurilis. Senega and ammnniacum, and the others, may be used in the passive form of the disease. The propriety of exhibiting diuretics, with tonic infusions, and with antispasmodics, as already ad- vised, is especially evinced in the more passive conditions of tiiis disease. Camphor, ammonia, and the aUhers, particularly the spirit, atheris nitrici, and spir. a^theris sulphur., are of great utility, when thus associated, or when given with purgatives and tonics. The importance of sup- porting the constitutional power-, in all the more passive states of the cardiac complication, cannot be too highly estimated. In such cases, purga- tives should be given only in combination with tonics and antispasmodics; and digitalis will be best exhibited in a similar manner. Formulfe 400. 516. 781. 856. 859. 893, 894., and the fol- lowing, as well as other diuretic preparations in the Appendix, exemplify some of the foregoing combinations : — No. 190. ^. Hydrarg. Submur. gr. j. ; Pulv. Digitalis gr. j ij. ; Znici Oxydi gr. iij. ; Pulv. Opii Puri gr. ss. ; Syrupi I'olutan. q. s. Fiant Pilula; ij., bis terve quotidid sumend*. (Hufeland.) No. ni\. B Tinct. Digitalis 111 x.—xvj. ; Tinct. Ca- lumbiE 3 jss. ; Spirit, ^ther. Sulphur. 5 ss. ; Tinct. Opii 111 V. ; Blist. Campiiorae 3 xj. M. Fiat Haustus bis quo- tidie sumendus. No. 192. R Pulv. Scillae gr. j. ; Potassse Nitratis gr. vj. — X. ; Soda? carbon, exsic.gr. viij. ; Sacchar. Purif. 5ss. ; Olei Anisi ll) iij. Tere benesimul, et fiat Pulvister In die capiendus. (Selle.). No. 193. B Potassae carbon. ,3jss. ; Potassae Nitratis 5 ss. ; TInot. Colchici 3 iij. ; Tinct. Aurantii 3 iij. ; In- fusi Junip. Coinp. 3 vij. Misce. Capiat Coch. ij. vel. iij. larga quarlis horis. When, in addition to diminished tone of the capil- laries, the disease is complicated with atonic bronchitis and mucous expectoration, the first of the following recipes may be administered ; and when it is associated with torpor of the liver, the latter may be exhibited : — No. 194. K Pulv. Scillic cxsic. gr. xij. ; Pulv. Fol. Di- gitalis gr. xvj. ; Hydrarg. Sulimur.gr. vj. ; Pulv. Gum. Myrrlia' 3 ss. : tore lieiic siiiiul, et adde Assafoetida; 3 ss. ; et Syrupi q. s. Fiant I'iliil:f xxiv., quarum capiat unam qiiater in die, vol duas niauc uoctcque. No. 10'). B Gum. Amniciiii.ui, .Saponis Venct. Jia3 j. ; Pulv. Srilla; ex.sic. gr. x. ; Pilul. Hydrarg. gr. xv. ; Olei .luiiiperi 111 v. ; Kxtr. Taraxaci 3 j. Fiat massa a;qualis, (|uatii divide in Piliilas xxx. Sumantur du.i" bis tervo qtiotidie. 17:i. I'lirncentesis (/lomr/'s, once sn strenuously advised, has now fallen into disuse, and is seldom DHOPSY, CONGENITAL— Pathology or. 049 or never resorted to, excepting in empyema. In some states of the acute disease, especially when the effusion is prmcipally in one cavity, and is not attended by organic changes in the lungs or heart, of a necessarily fatal or dangerous kind, the condition of the patient in oiher respects not contra-indicating the propriety of performing it, this operation may be as safely and beneficially practised on the thorax as on the abdomen ; the same risks — and no greater — existing in respect of the one as of the other. It has been recom- mended by GOULA, DXJVERXEY, BlANCHr, De- LAPORTE, MoilELAND, HuETTER, jNIORAND, LuL- LiER, J. P. Frank, iMursinxa, Bei.i,, Romero, and Archer, and practised successfully by nearly all of tiiem. The chief danger proceeds from the introduction and action of the air; but not so much from ils preventing the dilatation of the lungs, as from its action on the diseased pleura, and the fluid effused from it, as shown above (^ 157."). (See arts. Lungs, and Pleura.) sequent ttpon disease of the molhev, or upon organic change in the appendages, or in so)ne of the viscera, of the fetus, or upon both causes. Hi). Congenital eifusions of fluid are found — ■ (rt)iuthe ventricles, or between the membranes of the encephalon ; (J)) between the membranes of or in the spinal cord ; (o) within both the head and the spinal canal, in the same case ; (d) in the abdominal cavity ; (e) in the sub- cutaneous and other parts of the cellular tissue ; (f) in the cavities of the chest — the pericardiac and pleural ; and, generally, in the above se- quence, as respects frequency of occurrence. 1 hey are observed in the fcetus at the full term of utero-gestation, and in abortions chiefly during the middle and latter months ; and are, with tiie associated diseases either of the uterus or of the appendages of the foetus, the cause of its death, or of its premature expulsion. 176. i. Congenital Hydrocephalus (Hiidro- ceph. congenitus) sometimes appears, as other BiBLioG. AND Refer.— Got//«, Ergo in Thoracis quam forms of congenital dropsy, dependent upon dis- ease of the uterus, or on constitutional taint in the parent or parents, or upon organic change in the placenta or umbilical chord. In rare in- in Abdom. Hydr. Paracentesis tutior. Paris, 1621. Baltonius, Opera, vol. i. p. 13 Bartholin, Hist. Anat. vol. ii. p. 7. (ifj. — R'verius, obs. i. 60. — JVillis, Pharinac. Rat. ii. i. 13. — flKcccwfy, in Mi5m.de r Acad. Roy.deScien.de Paris, 170:5, p. 197. {Paracentesis.) — Boiiet, Sepulchret. | stances it has been associated with ascites in the 1. n. s. 1. ob.^. 72. 84., s. n. ob. 75. rt jjfi/. — Bianchi, Uistor. Hepat.i. p. 662. — Mo>-ga!;7ii,'De Sed. et Caus.ep. x.a.ll., ep. xvi. a. 2 40 Berger, Sur I'Hydr. de la Poitrine. Paris, 1730. (_Pscs of medullary subslance and blood; or loose and separate nervous bundles; or the anterior columns running parallel, but separate from each other ; or, as in tlie early stages of formation, open, broad, and flat behind. 180. In the more common stale of the disease, there is found only in one, or very rarely in two, distinct places in the spinal column, a more or less large swelling containing water : in some cases flat ; in others, semilunar; and in several, necked ; their parietes consisting of the expanded spinal membranes, often adherent and otherwise morbid, protruded through the cleft in one or more vertebra; ; and connected with the thin and distended common integuments. This watery tumour most commonly appears in the lumbar region, more rarely in the dorsal and sacral, and still more rarely in the cervical, excepting in cases of co-existing hemicephaly or hydrencepha- locele, in which the spina bifida always occurs in the neck, and, from this point, protrudes more or less outwards. The dropsy of the cervical spinal marrow is merely, in this case, a process from that of the brain ; the degenerated brain being directly connected with the diseased origin of the spinal marrow, which is sometimes per- fectly natural below. The size of the cleft in the spine varies greatly: generally more than one of the veriebraa are open ; and rarely there is found only a small round hole in one bone, by which the tumour is connected with the spinal canal. It is extremely rare to find the bones healthy, and the aperture merely through the intervertebral substance. 181. The seat of the water is originally of naturally in the spinal marrow itself ; which, at the part affected, is very much expanded, broken up, and even entirely destroyed ; and often ex- hibits the canal in the axis of the marrow, open and expanded up to the brain. The water is also sometimes contained, at the same time, be- tween the membranes of the cord ; and, in rare cases, in them alone ; whilst the cord itself is either healthy, or merely compressed (Acrel, Palletta, Vacca-Berlinghieri, Urquhart). In those cases where the fluid is contained be- tween the membranes only, there is generally co-existent effusion between the membranes of the brain. When the fluid is in the marrow itself, there is likewise often effusion in the vetitricles. Sometimes the swelling also contains hydatids. Dropsy of the spinal marrow occurs, in some raie instances, without any external swelling, and without cleft in the spinal column ; so that the canal running in the axis of the spinal cord, and which is generally closed, becomes more or less widely expanded by the water, with co-exist- ing increased thickness of the cord itself (San- TORiNi, Portal, Otjo) ; or the water is effused only in the substance of the cord, and one part of the oigan is distinctly swollen (P. Frank). About one half of the hemicephalic monsters have also spinas bifida;. 182. Whatever may be the seat of the external tumour, it presents three rarielies as to its aspect (Bii.i.AHi)): — 1st, That with the integuments covering the tumour in a healthy and uninflamed state; 2d, That with the skin discoloured, thinned, and sometimes peimitting the exudation of a serous or seio-sanguineous fluid, indicating the approaching ru])ture of the parietes ; 3il, That which is opened, and allows the efluscd fluid to escape through a fine ulcerated perforation, the vicinily of wliicli is surrounded by a red, rugous. DROPSY, CONGENITAL - and unequal elevation. Tiie patient may live several niontlis or years with the first variety of the disease ; but death usually soon follows upon the second and third. The Jin id effused varies in uppearuHce with the state of vascular injection presented by the membranes. When these are injected, or apparently inflamed, the fluid is ge- nerally more or less turbid, or even flocculent ; but this change may arise from the inflammatory action preceding the rupture of tlie external part of the parietes of the tumour. In other cases, the fluid is commonly limpid and pale. 183. Tiie general symploms of congenital hydroracliis, or cleft spine, are very diveisified. They consist chiefly of debility, emaciation ; pa- ralysis, generally, of the lower extremities ; reso- lution of the sphincters ; antesthesia ; inability to take the breast ; convulsions; and stertorous breatliing. The tumour has usually a globular, or pyriform shape ; sometimes a broad base, and, at others, a narrow neck ; and varies from the size of a hazle-nut to that of the adult head, or even larger when the patient lives many years with the disease. Congenital dropsy of tlie spine, with external tumour, is sometimes associated with other congenital diseases or malformations; as dropsy either of the head or of some other ca- vity ; vices of formation in the digestive canal (\'oisiN, Jimrn. de Mtd. t. xxi. p. 57. ; Revo- I.AT, in Ibid. t. xxvii. p. 378.) ; umbilical hernia (Preuss, in Epliem. Nat. Cur. vol. viii. p. 128. ; Sandifort, Observ. Anat..Pr. t. iii. p. 1 — 41.; BIeckel, L cit, p. 679.) ; malformations of the urinary or genital organs, or the absence of one or more of tliese (Delfini, Opusc.Scelti di Mi- hino, t. vi. p. 21. ; Lobenmvein', De Monst. Genit. Dijformitiite, in Mem. de I'Acad. Imp. des Scieii. de St. Petersb. t. vi. 1817.) ; imperforate anus (LAiMARc, in Roux's Journ. de Med. t. xxxiii. p. 516.) ; and defect of various parts. 184. iii. Congenital Anasarca, and Drop- sies OF the Cavities of the Chest avd Ab- domen, are occasionally observed, particularly in the prematurely born foetus, either dead or liv- ing ; and under the circumstances already stated (§ 176.). The occuirence, unless when the effusion is very great, or associated witli extensive vis- ceral disease, should, however, not be viewed as necessarily fatal. Cases have been observed, wherein the collection of water in the abdominal cavity of the new-born infant has been very con- siderable, and yet recovery has taken place. In some instances, the eflfusion, in this situation, has been so great as to impede parturition ; and, in very rare cases, it has been found necessaiy to punctuie the abdomen of the tcetus before de- livery coull be effected. Cougenital encysled dropsy is very seldom met with. The case re- cently recorded by M. Petit Mengin is one of the most reniarkable on record. 185. iv. Causes of Congenital Dropsies. — (a) The remote causes of congenital dropsies are not frequently very obvious. They have been stated to consist of constitutional vice in the parents, particularly the mother ; the syphilitic taint ; the scrofulous and rickety diathesis ; vio- lent mental emotions, as fits of anger, fright, &c. ; whatever inordinately excites the circulation in the uterine organs during pregnancy, as excessive venereal indalgencies (Ki.inko-ch, .1. Fuank); external injuries affecting the uterus or its con- - Causes and Treatjient of. 651 tents ; violent concussions of the trunk ; and sup- pressions of urine in the mother (Frank, Ril- L(XRD, &c.). — (ft) The more immediate causes are organic changes, and hydatids, in the pla- centa ; alterations in the umbilical coid ; tu- mours or other lesionsof the uterus ; inflammations or congestions in the viscera of the foetus, or inflammatory irritation in the serous membranes ; tubercles in the liver and lungs; and tubercular thickening of the serous surfaces. The three cases recorded by Dr. II. Lee occurred in con- nection with dropsy of the amnion, and with dis- ease of the placenta, and of some one of the viscera of the foetus. In two, the effusion was seated in the peritoneal cavity, and in one of them it was associated with anasarca. It has been remarked by RIichaelis and some other writers, that congenital dropsies, especially spina bifida, often occur in the same families with rickets. 186. v. Treatment. — Congenital dropsies may be somewhat benefited by medical treatment. When the aqueous collection is not great, and when the infant is well- formed, fully developed, and evinces little or no disease of any vital organ, we should not despair of success. — (a) Of the treatment of cougenital hydrocephalus, particular mention will be made in that part of this article in which chronic hydrocephalus is discussed ; and the same measures which will be recom- mended in dropsy of the spine with external tumour, are in great measure applicable to the congenital collection within the head, but more particularly to that form which is attended by imperfect formation of the cranial bones and pro- trusion of the membranes and other parts external to the seat of the collection {Hydre)icephalocele, see § 176.). In most instances of congenital hydrocephalus, bandaging the head, and con- tinued but gentle pressure, aided by the rest of the means advised in the next paragraph, seem most appropriate. 187. i^h) Of dropsy of the spine, &;c. — The removal of this form of disease by ligature was practised unsuccessfully by Heister ; and was more recently recommended by R. Rell. Rut what lias been stated above relative to the patho- logical relations of the tumour, independently of the circumstance of its form being such as not frequently to admit of this treatment, will show that this method can be but seldom appropriate, and that it must be generally hazardous. Centle pressure has been advised by JMr. Abernethy, and successfully employed in a case by Sir A. Cooper, who also resorted to puncture in another case, with a similar result. These methods have, however, been often practised in tlie dropsical tu- mours, both of the spine and of the head, but very rarely with advantage. In a case, however, of the latter kind, j\Ir. E. Thompson succeeded by applying a ligature. Richter recommends setons to be inserted at a short distance from the tumour • Camper and Agree, the application of discutient *lotions ; De Haen, the employment of defensive plasters; and Rillard, gentle and continued pressure. Camper, Rorsieri, the Franks, Racchetti, and Ollivier, are strongly opposed to repeated punctures ; and state, that they excite inflammatory action in the membranes, and hasten aii unfavourable termination. I believe that the tumour should be as little interfered with as 652 DROPSY, ENCYSTED possible; that, if any local medication be resorted to, a simple discutient lotion — as one of vinegar, rose water, and spirit, or liq. amnion, acetatis — or a defensive and discutient plaster, with gentle pressure, will be found the safest and most suc- cessful ; — that, in addition to tiiis, the abdominal secretions and excretions should be promoted, by means the least calculated to lower the vital powers; — that a healthy wet-nurse should be provided, to whom a gentle course of iodine may be administered ; — that change of air, or resi- dence in a warm and dry air and locality, be directed; — and that the infant should wear soft flannel next the skin, and be warmly clothed. These have been tlie means I have employed in most of the cases of the disease I have treated ; and they have often prolonged life, and dimi- nished the tumour, altiiough, in many instances, I was unable to learn the ultimate result. When the exterior of the tumour becomys in- flamed, or the integuments thinned and disposed to ulceration, puncture may be then resorted to, as in the case recorded by Mr. Abeunethy ; but care should be taken to close the opening accu- rately after each operation, and to protect the part from the air and external injury by suitable applications. (See Dropsy of the Head — Treutineiit of Chronic.) 188. (c) As to the treatment of the other forms of congenital dropsii, but little need be added to the above. In some instances, it may be requi- site to commence with the application of one or two leeches. Purgatives are generally requisite, and should be often repeated, and alternated with, or followed by, diaphoretics and diuretic^, and assisted by the use of sligiitly alkaline baths, of a temperature ranging from 85° to 94°. Many of the cases of these forms of congenital dropsy are beyond the reach of medical aid ; but, when the infant is in other respects well formed and strong, the existence of active congestion in, ov of vascular determination to, some one of the viscera of the cavity in which the collection is formed^ or of inflammatory irritation in the serous membrane, may be suspected, and moderate local depletions, and active alvine evacuations, aided by means calculated to relax the cutaneous surface, should be employed. BlBLlOG. AND RePER. — i. CoXGENIT. DrOPSY OF THE Head. — Eiii/sc/i, Thesaui. Anat. ii. ohs. Si.—Blancard, Anat. Pract.'Kar.cent.i.<>bs.80.,ceiit.ii.ol)s. \5.—HaUer, Disput. Anatora. t. vi. p. 320. — Soem, Dissert, de Foetu Ilydropico. Bas. }15\.—Gekler, De Partu diffifili ex Hydrope FcetCis. Lips. \lW..—Marcorel, Mem. pres. a I'Acad. t. iv. p. 458.— Orf«'r, Recueil Perioii. t. vi. p. 289. — Memle. in Nova Acta Acad. Nat. Cur. vol. xi. pars ii. p. 44:! Pcnadn, Sa^U'io d'Osscrvazioiii e Memorie, 4to. Padua, Vim. — Osidiiilcr, Ihiiulbucli der Entbindungsk. &c. part ii. p. '291 . ( /" uii oiihnin of two ur three mont/is.) — II. Etirle, in Mf1. — .B. Thomson, Loud. Med. Repos. Nov. 1824. — Mecliel, Descriptio Moiistro- rum nonnul. &c. 4to. Lips. WM, p. « : (/" afieliis oj sij: weeks.) — BillardyDes, Mai. dos lOiilaiis Nnuvcaux-iies, &c. Paris, 1828, p. 4.'">1. — A. /»'. Otto, C'cmp- "1 Vnih. Anat. by Stiiith, p. Tib. — Caucal, Lancette l'ran<;aise, No. 7H. IS.3.3. ii. CoNfiKN. Dropsy oftme Spinb.— /7»//.'ir«, Obsorv. Anat. Chir. obs. .'Jt, ;», 'M. — ISoncl, Sc|)ulchret. 1 i. nect. xvi. obs. 4. (.With hi/dror.eph.) — Iloclistettcr, De .Spina Bifida. Alt. 17():J. - Salzmann, Do Ouibu.sdain 'I'liinoribns tiuiicatis extern. Arg. X'W.—Morifonni, De C. et.S M. epist. xii. xlviii.— A/«//C)-, Klement. Physiol. vol. iv. p. 87 Portal, Mcui. de I'Acad. des Sciences, an. — Causes and Pathology or. 1770, 1771. {With kydroceph.) — Warner, Observ. in Sur- gery. Lnnd. 1784, p. ISd.— Slo/l, Rat. Mees — of the organic actions of secretion and nutrition — being move apt to occur from causes wliich deflect them from their healthy course, in such constitutions, tlian in the sound and vigorous. This view is important, inasmuch as it is based on an attentive observation of a number of cases of this descrip- tion, and as it leads to a more successful practice than is too frequently adopted. 192. B. Prognosis. — Encysted collections of fluid, as long as they do not reach the extent of im- peding the functions of adjoining organs, seldom occasion any serious disturbance. In this respect they are different from effusions into natural cavi- ties ; and, when they give rise to dangerous or fatal results, it is owing more to this injurious action on surrounding parts, than to any change they induce in the circuhiting, secreting, and natural func- tions. When not injuriously interfered witii, and when the system is not improperly lowered, or if it be enabled to resist their increase, all the func- tions frequently proceed without any material disturbance, and these collections often remain long stationary. But, when the constitutional powers receive a severe shock from any cause ; when the patient is imperfectly fed, or is made the subject of a meddling or active surgery ; the cysts become the centre of a inorbid determination of the organic actions ; chronic inflammation supervenes in them ; the accumulation of fluid advances rapidly, and the vital resistance is subdued. In some cases, the secretion proceeds in the interior of the cyst with greater rapidity than the cyst itself can either yield or be deve- loped, and hence it is ruptured, and its contents efl^used. This circumstance may hasten an un- favourable issue; or, vv-hen the cyst is small, favour its disappearance or transformation. 193. Encysted dropsies are, with some excep- tions, incurable when they have reached a large size, and when, either from this circumstance, or from their situation, they adinit not of being re- moved entirely. But, in many instances, especi- ally when they are seated in the ovaria, a judicious constitutional treatment will of en pre- vent their increase for years, — sometimes during the greater part of a very long life, — or will even cause their entire disappearance, or transformation into an inert substance. 194. C. Treatment. — As to the indications of cure, only a few geneial observations are here necessary. In all encysted formations, particu- larly in those now under consideration, it may be viewed as a law, from which there are ex- tremely few exceptions, that, in proportion as vital power, and its manifestations in tlie secreting, assimilating, and excieting organs are promoted, without materially exciting the vascular action, or heating the body, will the progress of these productions be overcome, or their diminution eflected ; whilst their increase will be both great and rapid in an equal ratio with depres-ion of constitutional energy, or with disorder of any of the functions now alluded to. A healthy and vigorous performance of the various organic ac- tions resists the progress of all adventitious form- ations; and an opposite state favours their increase. 'J'his rule holds in respect of all productions of a parasitic kind, and in all tha kingdoms of or- ganised nature, and is observed in both the physical and moral maitij'estdlious. 1'he parasitic formation or animal can grow only at the ex- pense of the weak ; the robust frame resists it, and denies it nourishment; whilst the weak fur- nishes it with means which are slowly but surely turned to its own destruction. 195. During the treatment of encysted dropsies, care should be taken not to resort to any measures that may irritate or inflame them, particularly when they have acquired a large size. On this account, funcxuriiig or paracentesis should be re- sisted to the utmost — until extinction of life would follow on its being longer deferred j and, when thus made a dernier ressort, the operation should be performed by a scalpel and lancet, with which latter the sac should be opened ; the utmost care being taken not to admit the air. I have seen, on numerous occasions, the ill effects of not attending to this injunction, and of leavinp' acanula, or tent, in the wound, the inflammation thereby induced in the cyst, giving rise to so ex- tensive a secretion, and so much constitutional disturbance, that the patient has rapidly sunk. 196. The preparations of iodine, when judi- ciously exhibited, are the most generally appli- cable and efficacious means that can be employed in this class of diseases. But they ought to be exhiljited in very small doses, much diluted or reduced, and long persisted in. They become injurious as soon as they give rise to the slightest indication cf irritation of the digestive organs. I have employed them extensively and constantly since 1819, when I brought some of them with me from the Continent. At that time they could not be procured in London. They are most be- neficial when prescribed internally; but they are also of use externally, if they be directed so as not to inflame the part to which they are applied (see F. &32. 7G6— 769.). When the debif ty is considerable, the iodide of iron, taken in any aromatic infusions, the secretions and ex- cretions being at the saine time promoted by an aperient pill at bedtime, will be of essential ser- vice. I have lately prescribed it in several cases of cachectic disease, with reinarkable benefit. The diet, in all encysted dropsies, should be light and nutritious ; and the patient's mind be agreeably engaged : change of air, or residence in a pure, temperate, rather warm, and dry air, ought also to be recommended. 197. The situations in which encysted DROPSY is most FREQUENT, aic HuiTierous ; and if all the places in which large serous cysts have been developed were taken into the account, it may be said that they comprise every part and organ of the body. Encysted dropsy, however, has been observed under the integuments, by Schenk,Van Swieten, CRuvEii.HiEr!, and others, forming very large lymphatic tumours; irithin the head, as shown in the article Brain ; between the pleura and the intercostal muscles (Haller, Desault, &c.) ; in the mediastinum ; in the sub- stance of the lungs (Stoerk, MaeoIst) ; in the ('avity of the thorax, and in that of the pericardium (Mercker, Dupuytren, Itard, &c.) ; between the peritoneum and abdominal parietes (Achot.- zius, MoRGAGNi, RloRAND, and J. P. Frank) ; in the ovarium, forming ovarian dropsy; in the Fallopian tubes (Riedlin, Douglas, Blankard, Baillie, Seymour, &c.) ; in or connected with the uterus, — Hydrumetra, ^c, (Geuner, Odier, 654 DROPSY. ENCYSTED, OF THE OVARIUM Lafosse, Rayer, Thomson, &c.) ; connected ■ Pathology of. with the liver ( Alix, Con\'isAnT, Leroux, Frank, Lassus) ; in the kidney (Morgacni, Houston, Walteh, Corvisaut, J, Johnson, Howison) ; in the omentum (Hasenoerhl, De Haen, Por- tal) ; in the mesenterii (Horstius, Tulpius, Sauvages, RIoranh) ; and in the spleen (JMon- gagni, Baader, (Sec.)- Of the most important only of tliese, 1 now proceed to take a m,ore particular notice. In some cases of very large encysted dropsy seated within the abdomen, the exact origin of the cyst can hardly be ascertained. Of this kind appears to be the instance recorded by Sir. CouLSON {Med. Gazette, vol. ix. p. 577.), which was frequently tapped. Upon dissection, the cyst was found to adhere to the abdominal parietes, and to several of the viscera, and to consist of three layers. The ovaries were healtliy. Similar cases are published by Portal and Cru- veii.hier (Antit. Palholcg. vol. i. p. 268.). i. Dropsy of the Ovarium. — Syn. Hydrops Ovarii, Ocarian Dropsy, Dropsy of the Ovary ; Hydroophnrie, Boivin and Duges ; Die Was- sersucht der Eierstocke, Germ.; Idrnpisia di Ovaria, Ital. 198. Defin. — Swelling, commencing icith ten- derness, pain, or weight in the iliac region of one or both sides, and irregularilif of the menstrual discharge ; the swelling gradually extending over the abdomen, and attended bij obscure fuctuation. 199. A. Pathology. — This is the most frequent species of encysted dropsy, and of the greatest importance in a practical point of view. It is very often complicated with otlier organic changes in tlie ovaria (see article Ovaria — Diseases of), peritoneum, uterus, and tubes ; but it also frequently consists only or chiefly of a collection of a greater or less quantity of fluid in one or more cysts, into which the substance of ihe ova- rium seems to have been converted ; owing to the enlargement of one or several of them giving rise to atrophy of the proper structure of the ori3;an. These cysts have been mistaken for hydatids, from which, however, they may be dis- tinguished by their being nourislied by vessels sup- plied from the parts in which they are formed; whilst hydatids are not thus supplied, but are nourished by their own vessels, and have an in- dependent life. Sometimes " one or both ovaria are converted into simple cysts ; the whole of the cellular substance and vesicles disappearing, that which was the fibrous coat of the ovarium becom- ing the fibrous coat of tiie cyst." (Dr. Seymour.) 200. The Graafian vesicles, vvhich, in the healthy state, are of the size of millet seeds, fre- quently become as large as almonds, are filled with a limpid fluid, and their internal membrane is very vascular. This appears to be the com- mencement of the simplest form of ovarian dropsy ; or, at least, a change, which may j)rocced no further, but which sometimes does proceed to an extent wliich constitutes this disease. W hen tliese vesicles enlarge to a greater degree than the size of a filbert or almond, it is always on the side nearest the proper coat of the ovarium ; the rest of the ovarium, as shown by M. Cuuvfilhier and Dr. Sf.vmour, appearing, when the cyst reaches a large size, as if atrophied at the parietes of the cyst. In this manner is sometimes formed an enormously large single cyst, having the proper fibrous coat of the ovarium and peritoneum for an external covering ; the internal membrane, or the parietes of the vesicle, secreting a prodigious quan- tity of fluid. In many of these cases, especially in those of long duration, the parietes of the cyst un- dei'go various changes, and are thickened, hard- ened, cartilaginous in parts, or even ossified. Their external surface, in their earlier stages, are some- times smooth, not infrequently inflamed or very vascular ; and form adhesions with adjoining parts of the peritoneum and contiguous viscera, or with the fimbriated extremities of the broad ligament, or with the fundus of the iiterus (Boivin, Sey- mour, Duges). In their more advanced states, also, their surface becomes the seat of chronic in- flammation, of tuberculation, or both; and in this change the rest of the serous surface of the abdo- men, or parts of it only, may participate. In some instances, the marks of associated inflammatory action in the peritoneum are indistinct ; but this membrane not infrequently contains in these cases, more or less fluid, the encysted dropsy thus being complicated with ascites. The interior of the sac, or cysts, is commonly smooth, and re- sembling a serous surface (Morand, Burns) ; or it is lined with a false membrane : it is, in some cases, irregular or mamelonated ; and, in others, imperfectly divided by incomplete parti- tions (Cuuveiliueu). 201. The y^Kfrf contained in these cysts varies remarkably. In some cases, particularly when it is lodged in one, or a few cysts of a very large size, it is serous, or mixed with a ropy or mucous mat- ter. In others, it is dark-coloured and resembles cofl'ee. Where the cysts are more numerous, their contents are generally thick, gelatinous, and of a brown colour of varying depths of shade. The fluid is also, but more rarely, of the appearance and consistence of custard ; and occasionally it resembles honey. I have seen it, in some instances, where the accumulation was remarkably great, brown, thick, and gelatinous ; and in others, its characters have changed at subsequent stages, especially after tapping ; and it has become grey- ish, dissolved, ichorous, flaky, or puriform and even offensive. The quantity which collects, particularly when there is only one cyst, and when its contents are serous or watery, is sometimes very great. Wepfer, IIaller, jMonro, and Frank have found as much as 120 pounds of fluid in a single cyst, and Mijller as many as 140 pounds. When the necessity of resorting to puncture has once become imperative, the rapidity with which the fluid is again formed is often remarkable. MoRAND drew off 427 pints in ten monihs ; and IMartineau nearly 500 in a twelvemonth ; and, from the same patient, upwards of 6600 pints, by eighty operations, within twenty-five years. Sir A. Cooper thinks, with great probability, that the case of Mrs. INIumford, who was tajipcd 155 timesin less than fouryears, wasone of ovarian dropsy. W'hcn the ovaiitim contains a number of cysts, is lobular, and irregular in its surface and firmness, each of the individual cysts often is filled by a different and peculiarly charac- terised secretion — which is cither watery, gela- tinous, sanguineous, fatty, &c. ; and, when the tumour has been punctured, partially decom- posed or putrid, and mixed with gaseous fluids ( De IIaen, Boivin, Duces, and myself). In rare instances, sebaceous matters with long hair have been found in the same ovarium that con- DROPSY, ENCYSTED, OF THE OVARIUM — Causes, Symptoms, etc. 655 tained large dropsical cysts, and even in the i same cyst, with the watery collection : the cyst ill which the hair and fatty substance had been formed having subsequently become the seat of dropsical effusion. ■202. li. Causes. — (^a^ The predisposing causes are, the scrofulous diathesis ; debility, however induced ; frequent or excessive menstruation, and venerea] indulgences. The disease occasionally commences as early as the first appearance of puberty. J. P. Frank saw it at thirteen, and JM. Itari) at fourteen years of age. Marjolin states, that it may begin before puberty ; but I know of no such occurrence. It is most com- mon between the ages of twenty and fifty. It may commence soon after the cessation of the catameuia ; but, although chronic cases of it are found in very old females, yet it rarely originates at an age much beyond fifty. It often follows abortions. 203 {b) The exciting causes have not been satisfactorily shown : but it has been very gene- rally imputed to external injuries, succussions of tiie pelvis, the mismanagement of parturition and abortions ; or to cold, fright, and anxiety of mind. From much attention to this disease, I have inferred that it is occasionally consequent upon inflammatory action in the ovaria or uterus, or connected with this change in its earlier stages. Hence its causes may be considered to be, in some cases, those in which inflammatory ac- tion in these organs generally originates. Yet there are numerous objections to this view ; for even wiien the tenderness and pain in tiie region of the ovaria, accompanying its commencement, are greatest, there is also a frequently recurring and copious menstruation, indicating an excited, rather than an inflamed, state of these organs. From various considerations, and a review of the circumstances in which the disease seemed to originate, it is not improbable that it is connected with an often excited, but an imperfectly gratified, sexual appetite. Hence its frequency in females who are sterile, or whose state of heaitii is insuffi- cient to the developement of a healthy and vigo- rous orgasm, owing either to premature and illicit indulgences, or to previous disease. 204. C. Symptoms and Progress. — Ovarian dropsy is very commonly far advanced before recourse is had to medicine. It usually com- mences with irregularity of the menstrual dis- charge, and disorder of the excretion of urine, which is either voided frequently, or is long re- tained. There is also severe pain in the loins, with pain, tenderness, and swelling in one or both iliac regions.. In some instances, the ])ain shoots througli the abdomen, and down the thighs; and occasionally there is numbness, ha'morrlioids, or complete strangury, owing to the pressure of the enlarged ovarium before it rises out of the pelvis. The catamenia, at this period, is frequently either copious or of too frequent occurrence ; but it is rarely altogether suppiessed. Various hysterical symptoms also come on ; and disappear at a later stage. The bowels are usually costive ; but they are sometimes irregular, or relaxed. As the ma- lady proceeds, the patient experiences various dyspeptic symptoms, and ofien nausea and vomit- ings, as in the early months of pregnancy. The mammas also enlarge, and tiie areolaj around the nipples assume a darker shade. Dr. Seymour states, that, when both ovaria are aflfected, the catamenia are always absent ; but, when one only is diseased, this evacuation is eitlier absent or irre- gular. 'J'iiis does not agree with my experience, the results of which I have just novv given, as regards the early stages of tlie disease ; but, as respects the last stages, particularly in the more chronic cases, the observations of this physician seem to be correct. With the increase of the tumour, various inflammatory phenomena, referri- ble chiefly to the peritoneum, and commencing in the pelvis, but often extending upwards to parts of the al)domen, supervene. 205. The progress of the tumour and abdominal enlargement is extremely various. Occasionally the ovarium, whether it consist of a number of cysts, or of one or few, increases very slowly. It sometimes remains long stationary ; afterwards augments rapidly, and fills, ultimately, the whole abdomen ; and in rarer instances it recedes, or even entirely disappears. It proceeds more re-" gularly, however, in most cases, until it gives rise to appearances rendering the diagnosis very difficult. The general health, as already stated in respect of encysted dropsies, continues but little impaired, until the morbid accumulation has ad- vanced so far as to disturb the functions of ad- joining viscera; but this is not uniformly the case ; for the means used to cure it not infre- quently are sources of disorder, deranging the natural functions, and thereby favouring the in- crease of the disease. When the collection rises as high as the epigastric region, and the abdomi- nal distension is great, the functions of the stomach are often completely overturned, and the constitutional powers rapidly sink : singular and unexpected changes, however, sometimes occur, even in the most chronic cases. Dr. Baillie mentions an instance of its spontaneous disappearance, after it had existed thirty years ; the patient remaining, subsequently, in good health. The accumulated fluid is also occasionally discharged into some part of the large intestines, having previously formed adhesions with it ; or into the vagina, pressure on the tumour increas- ing the discharge. Instances of this have ac- curred to Dr. Elliotson, Vr. IMontgomery, myself, and others. In a case treated by me some years ago, and put upon a course of iodine, the catamenia were profuse every fortnight or three weeks. The tumour, which filled the whole ab- domen, remained long stationary, anrl ultimately burst into the large intestines. It did not return again until upwards of a twelvemonth : ultimately the patient was so much benefited as to leave off treatment. Dr. Seymour adduces an instance, in which the morbid collection was discharged both by the intestines and by the vagina, and recovery took place. Sometimes it forms adhe- sions to the abdominal parietes, and bursts exter- nally at the umbilicus. A permanent cure is often effected by judicious management under the fore- going circumstances. A case was seen by me, in \i'hich adhesion of the tumour took place, to the parts adjoining the puncture by which its contents had been drawn oft'. 'I'he cicatiix ulcerated, and the fluid was afterwards discharged by degrees through the opening, and the patient recovered. A nearly similar instance of recovery occurred in the practrce of JMr. Barnwell. When the fluid finds its way into the peritoneal cavity, the result DROPSY, ENCYSTED, OF THE OVARIUM 656 is, in my opinion, generally fatnl, althougii some autiiors contend that the fluid may be absorbed from this situation, and the patient recover, 'i'his, however, is certainly a very rare occurj'ence. 'J'he best authenticated case of restoration from effusion of the contents of the ovarian tumour into the ab- domen is recorded by Dr. Blundeli,, in his pub- lished lectures. 206. ]J. 'J"he Diagnosis of ovarian dropsy is not always easy. It may be mistaken for preg- nancy, foV ascites, for hydrometra, or for tumour or abscess of some adjoining part. The appear- ance of swelling and pain in one side, or both, of the pelvis, in connection with irregularity, with- out suppression, of the catamenia ; this swelling being at first but little, or not at all, changed by position — by lying on either side, or by the erect posture ; — obscure fluctuation as it expands, with a sense of elasticity, and sometimes of irre- gularity in it ; — the motions and activity of the patient not being very materially impaired, or not in proportion to the magnitude of the tumour; — the principal abdominal organs not having evinced much disorder, or signs of organic change, previ- ously to the swelling, and their functions not being greatly disturbed during its course; — its slow increase, its situation, its direction to one side and limitation to the lower regions of the abdomen when the patient is supine, until a late stage of the disease ; — the inefficacy of purgatives and of diuretics in producing any diminution of it, and the nc^t materially lessened secretion of urine, until after the disease has advanced very far, or until the fluid has been drav\'n off by art ; — the more healthy aspect of the patient than in ascites, — and pain, stupor, or oedema of the thigh, leg, and ancle, having been complained of, on the same side with that where the swelling commenced, — will serve, when carefully consi- dered, either separately or in conjunction, to guide the practitioner. These phenomena, however, may not be uniformly present, but many of them will — and will be so associated as to leave little doubt as to the nature of the disease, par- ticularly when aided by an examination per vagt- 7iam, and also per rectum. At the commencement of the malady, the local symptoms have some- times been so manifest, and attended by so much pain in the back, and pain and oedema of the lower extremity of the same side, as to have been mistaken for psoas abscess. 'The disordered excre- tion of urine and strangury, and the evidence obtained by examination, will, however, gene- rally indicate satisfactorily the nature of the dis- ease. Dr. J\1.4ciNT0sii states, that the tumour may sometimes be felt between the vagina and rectum, before it become? much enlarged ; the OS uleri being in such case tilted forwards close to the symphysis pubis, so as to resemble retrover- sion of the. uterus ; but an examination by the rec- tum will make the nature of the affection evident. ^VlH;n the increase of the ovarian tumour is slow, ami it ri-es in the abdomen by a narrow neck before it is perceived, it may be mistaken for eit- lurgemeiU of some other organ; especially if it liave formed adhesions with the parts in contact with it. 'I'he dilliculty of diagndsis is also in- creased by the presence of fluid in the peritoneal cavity, — a circumstance which occasionally oc- curs. WIk'Ii this is suspected, or when the diag- nosis is didicult, the patient should be examined ■Diagnosis — Treatment, in the recumbent posture, when the ascitic fluid will be found to gravitate towards the hypochon- driac and lumbar regions; and the limits of the ovarian tumour may be ascertained. The history of the early stages of the case, and the recurrence of the catamenia during the greater part, or even the whole, of its course, its chronic duration, and the absence of the progressive changes of the OS uteri characterising /))eg)«mci/, will sufUcientiy dis- tinguish it from that state ; the uterus being move- able and light upon examination per vagincim, pressure on the hypogastiium at the time not affect- ing, or propagating any movement to, this organ. 207. E. I'he Prognosis will depend entirely upon the constitutional powers of the patient, and the progress the disease has made. Although it should be generally unfavourable, and always expressed with caution, and with much reser- vation, even in cases apparently the most favour- able, yet we may entertain reasonable hopes that the progress of the disease may be checked by careful regimen and treatment, particularly when the energies of the constitution are unbroken, and the digestive and excreting functions are not ma- terially disturbed, nor the progress of the swell- ing rapid. J. P. Frank met with a case where it commenced at thirteen, and yet the patient reached the great age of eighty-eight years. The occurrence of tenderness in the abdomen, any manifest diminution of the patient's activity, its complication with ascites, emaciation, accelerated pulse, great disturbance of the functions of the stomach, and the necessity of having recourse to paracentesis, are all unfavourable circumstances, i:^ 208. F. Treatment. — 'I'he utmost care should be directed to the removal of all sources of irrita- tion from the uterine and adjoining viscera. 'The urine ought to be drawn off, if its excretion be in- terrupted ; and particular attention should be paid to the state of the bowels, the evacuation of which must be procured daily, by cooling aperients, or laxatives conjoined with gentle tonics, when they require it, or by means of tepid and emol- lient injections. In the early stages of the dis- ease especially, and when pain, tenderness, and other symptoms of inflammation are present, par- ticularly if the catamenia are deficient or delayed, local depletions by cupping on the loins or sa- ^ crura, or the application of leeches, or cupping about the tops of the thigh, are requisite. Ex- — -" ternal irritation should afterwards be prescribed ; and, as soon as the symptoms of inflammation are ren;oved, the patient should be put upon a mild course of i()d(/(e. The mode of counter irritation deserves attention. Blisters increase the stran- gury that is often present at this stage, and excite the vascular system. I have usually, therefore, had recourse to the ointment of the potassio-tar- trate of antimony, or to the insertion of issues or setons in the insides of the thigh-. When symp- toms of irritation exist in the uterine and urinary organs, they must be removed, by the carbonates of the alkalies, with nitre, taraxacum, and hyoscy- amus given in the infusion of calumba, or the in- fusion of cinchona. 'I'he course of iodine should be assiduously persisted in, and the preparations adopted should 1)6 given in small doses, much di- luted. The inilide of poldssiidii, or the ioduret of irnn,;\.Yii upon the whole the preferable combinations of this substance. Iodine, in some one of the ))re- parutions — liniment or ointment — may also be DROPSY, ENCYSTED, OF used externally. In this case it should be rubbed upon the insides of the tl)ighs ; where, if it should produce irritation of the integuments, the effect will be the more salutary. 209. Cathartics and {liuretics have no influ- ence upon the disease, further than to accelerate its progress, if they be used in such a manner as to weaken the powers of life. Purgatives of a tonic kind, however, may be employed to evacuate faecal matters, and to promote the intestinal se- cretions ; but such only, as are not calculated to excite or irritate the large bowels, should be se- lected ; as the bitartrate of potash with con- fection of senna, or the infusion of calumba or of gentian with infusion of senna. As to diuretics, I have seen no benefit derived from them, with the exception of those which possess tonic and astrin- gent properties, as the balsams and terebintiiinates; the latter of which have been productive of benefit, particularly when used in the form of liniment or epithem. Camphor and narcotics are also useful palliatives, especially, opiates. Tiie liquor potassie, and Brandish's alkaline solution, in suitable vehicles, and aided by sarsaparilla, by local de- pletions when tenderness in the situation -of the tumour is perceived, and by setons, have also been of great service in some cases in which I have prescribed them. The good effects of vomit- ing in swelled or inflamed testicle have induced some practitioners to have recourse to emetics in the early stage of this malady. Dr.PEnciVAL records a ease in which they proved of service ; but I have had no experience of the practice. JNIr. Abernetiiy prevented the reaccumulation of the fluid after tapping, by repeated blistering. Dr. Hamilton (On Mercurial Medicines, ^'c. p.202.) states that he has cured seven cases by percussion, or patting, for a long time daily, on the tumour, using a bandage so as to make constant compres- sion, giving a solution of the muriate of lime, and employing the warm bath. Many instances will, however, be found to confirm the opinion of Dr. W. HuNTEU (Med. Ohserv. and Inquiries, vol. ii. p. 41.) "that the patient will have the best chance of living longest under it, who does the least to get rid of it." In addition to the above means, but little can be attempted with much hopes of success. The chief objects are to sup- port the vital energies throughout the frame, — to promote a healthy assimilation, and the excretion of effete matters, — to ward oft' all irritation, phy- sical and moral, from the uterine organs, — to adopt a light, cool, and moderately nourishing diet, — to engage the mind agreeably, — to reside in a dry, airy, moderately warm, or temperate locality, — to take regular but genlie exercise in the open air, — and to have frequent change of scene and atmosphere. 210. Paracentesis in some instances becomes imperative, ovWng to the urgency of the symptoms, particularly after it has been once performed ; and the extirpation of the tumotir has been recom- mended by VaNDER HaAR, DELAPORTE,MonAND, Logger, Siebold; and practised by L'Aumonier, Smith, Lizars, Blundell, Granville, M'Dow- AL,and DiEFFENBACH. Of these measures a brief notice is required. — (n) The observations which have been already offered on paracentesis apply to the treatment of ovarian dropsy even more fully than to any other. It often accelerates a fatal issue by inducing inflammation of the sac. Of this I Vol. I. THE FALLOPIAN TUBE. 657 saw a remarkable instance many years ago in a near relative. Dr. J. Johnson has adduced an ex- ample of it (Medico-Chirurgical Review, vol. xi. p. 258.). Dr. Macintosh refers to one in his practice (Practiceof Phifsic,vo\. ii. p. 374.) ; and many others have been recorded, and observed by experienced practitioners. I therefore agree with Dr. DENMAN,thatparacentesisought to be deferred as long as possible. In such circumstances, this operation occasionally gives temporary relief; but there is a frequently recurring necessity for its repetition until the patient sinks. It has been pro- posed to effect a radical cure by evacuating the matter, and either laying open the tumour, or keep- ing a canula inserted in the wound. Le Dran mentions two eases which recovered from great suf- fering consequent on this measure ; and analogous examples have been recorded by Houston, Voi- soN, and Portal. But these are few compared with the numerous instances in which it has either failed, or accelerated afatal issue by the severe in- flammation and constitutional disturbance thereby induced. In two cases in which I was consulted, a canula had been left in the puncture, and ra- pidly produced these effects ; the introduction of air and the mechanical irritation having inflamed the cyst and peritoneum, and converted the se- cretion to a foul, foetid, and ichorous discharge : both rapidly proved fatal. It has hkewise been proposed to inject the cyst. Dr. Denman men- tions a case in which this was practised, but the patient died on the sixth day afterwards. 211. The extirpaPion of the tumour, although entertained by the older surgeons, was discounte- nanceJ by MoROAGjii, De Haen, Sabatier, and Murat. L'Aumonier, of Rouen, however, per- formed this operation successfully tov/ards the close of the last century ; and it has recently been practised by Dr. Smith and Dr. Macdowal, of the United States, with a like result. Notwith- standing the favourable issue of these cases, I stated, in the Medical Pepositnrii,at the time of their publication, reasons against resorting to this measure. The issue of several cases in which it has since been performed, both in this and other countries, confirms the opinion I then expressed. The operation has no chance of succeeding unless it be resorted to during that stage, at which a judi- cious constitutional treatment may either delay, or even remove the disease : and 1 believe that the cases in which it has succeeded are such as would have terminated favourably if they had been left to nature or to medical management. The results of the cases in which it was performed by Mr. Lizars and Dr. Blundell, are well known ; and I may add that it has likewise been attempted at least five times at Berlin, by Dieffenbach, Chrysmer, and ]Martini (Graefe and Waltiier's Journ. b. xii. h. i.), and, excepting in one instance, it en- tirely failed. Three of the patients died in con- sequence of the operatianv. In one case the surgeon did not proceed in the operation, on find- ing the tumour adherent on all sides. 212. ii. Dropsy of the FALLoriAN Tube — Hydrops tubalis — is not to be distinguished from ovarian dropsy ; nor, indeed, does it differ from it further than that, instead of the cyst being in the ovary itself, it is developed in the fold of the liga- ment, near the uterus, or close to the ovarium, or to the fimbriated extremities of the tube ; these ex- tremities being either adherent to the ovarium, or Uu G58 DROPSY, ENCYSTED, OF THE WOMB — PERITONEUM — LIVER. closed by coagulable lymph, or adhesions. In either case the cyst is solitary. Tlie disease has been described by Dr. Baillik ; by AIcnnik, who found the cyst contain as much as 110 pounds of fluid ; by Cypriani, who found 150 pounds ; by Haii- DER, wlio found 140 pounds ; and by others, who have observed much smaller quantities. Dr. Good defines this variety of dropsy as commencing with a heavy elongated intumescence of the iliac region spreadincr transversely, with obscure fluctuation ; but no distinction can be made between it and ovarian dropsy, in respect either of its causes or proTcss. The treatment of tliis variety is also the same as that of the ovarian disease. 213. iii. Dropsy of the Womb — Hydrome- tra — Encysted Dropsy of the Uterus — has been doubted by some authors : but it has been not in- frequently observed by physicians of the greatest reputation. The cysts which are, in rare instances, found attached to the exterior surface of the womb, do not belong to this disease, which consists of a collection of fiuid in the cavity of the iinimprcg- vated uterus, contained in a membrane or cyst. It has, however, been disputed whether the fluid is thus surrounded, or whether it has accumulated in consequence of inflammation having occluded the OS uteri by the deposition of coagulable lymph, or of the developement of some tumour or growth, plugging up this outlet ; the morbid action which occasions the latter also giving rise to the secre- tion of a great quantity of serous fluid, which ac- cumulates in consequence of this obstruction. It is very probable that this affection may arise from either of these causes, in different cases ; and that, in its slighter grades, it is not so infre- quent as some writers suppose, — the dilatation of the uterus, and the pressure of its parietes, over- coming or rupturing the obstruction at the mouth of the womb, and causing the fluid to escape. A considerable proportion of the cases vulgarly, but probably correctly, called false conceptions, is of this kind; they seldom becoming the object of medical attention, owing to the little disturbance produced by them, either during their increase, or afterwards, as well as to the deception to which they give rise. Some of these cases may also consist of hydatids, or other morbid productions, which may be associated with hydrometra, as in cases recorded by Baudelocque, Boivin, Duces, and others. (See Ovaria, and Uterus.) 214. iv. Encysted Dropsy of the Peritoneum — Extra-peritoneal Dropsy — Hydrops Peritonei of Tui.pius, and some other authors — consists of tlie collection of water between the parietes of the abdomen and the peritoneum, enclosed, in a cyst. It was first noticed by Morgaoni, and accu- rately described by Morand. Twenty-six cases of it have been adduced by Lieutaud, twenty- four of wliicii occurred in females. It presents the same constitutional features as have been noticed in respect of encysted dropsies generally ; and although, when the accumulation of fluid is very great, it can hardly be distinguished from ascites, excepting in its early stages, it may ge- nerally be suspected from the less uniform en- largement of the abdomen, the greater anterior prominence of this cavity, its much slower ])ro- gresH, and the less constitutional disturbance; the countenance and surface not presenting the cachectic apjjearanccs generally accompanying ascites, and the patient often retaining mOch vigour and activity of all the natural and animal functions. Still the prognosis in this disease is unfavourable. The sac generally continues to enlarge, and sometimes forms adhesions with the contiguous viscera , and if not evacuated, it event- ually bursts into the cavity of the peritoneum, as in the cases recorded by Chomel (J\/(?/». de I' Acad. Roy. des. Scien. an. 1728.), Morgaoni (De Cans, et Sed. ep. xxxviii. art. 51.), and Taver- MER (Le Dran's Obs. G5.) ; or externally, as in those of Degner (Acta Cur. S^e. vol. v. obs. 2.) and La Motte. M. Chantourelle met with a case wherein the sac opened into the intestines after a puncture had been made for the discharge of the fluid, and faecal matters passed out at the external opening. 215. The treatment of this form of disease has not been satisfactorily illustrated. It seems not materially benefited by purgatives or diuretics ; but it is stated, in some instances, to have been permanently removed by paracentesis. And cases have been adduced by Nuck, Degner, Le Dran, La JMotte, and others, in proof of the propriety of the practice. But in cases of recovery from a disease, of this description, there must still exist doubts of its nature. If puncture be resorted to when the tumour has reached a very large size, the opening should be valvular, and graduated pressure subsequently employed. The terrible eflPects occasioned by keeping open the orifice in order to drain the cavity, were fully demonstrated in I\I. Ciiantourelle's case, the cyst having become inflamed and gangrenous, with the adjoin- ing parts ; as well as in two interesting cases recently recorded by Mr. C. Hawkins. 216. v. Encysted Dropsy* of the Liver is liable to be confounded with abscess of this organ or with large accumulations of bile in the gall- bladder, from obstruction of its duct, or of the common duct. The cysts which are sometimes found in the substance of the organ, whether of a simple kind, or containing hydatids, are different from those encysted collections of fluid, which either form between the peritoneum and its proper covering, or are apparently attached merely to tills viscus. These last evidently consist of hy- gromatous cysts developed on the adhering sur- face of the serous membrane, and reaching an uncommon size.' When large cysts containing hydatids are formed near the surface of the liver, although essentially different from the simple cysts, and seldom reaching the same magnitude, they generally occasion similar symptoms, both local and constitutional, to tliose which attend the latter. In some instances, tiiese cysts be- come inflamed ; thereby occasioning great tender- ness of llie external surface, and changing the contained fluid to a sero-puriform matter, as well as increasing its quantity. 217. Encysted dropsy of the liver is generally accompanied with more disturbance of the ge- neral health than the other forms of encysted dropsy of the abdomen, and its progress is usu- ally more rapid. Although a dangerous disease, recovery sometimes takes place from it. Cases terminating favourably have been recorded by several writers referred to in the liibliography. This is most likely to occur if the cyst is attached to the anterior part of the surface of the organ. In this case, a large fluctuating tumour is com- monly formed below the right false ribs, or near the epigastric region, extending more or less downwards and in oilier directions, according to its size and situation. Inflammation may take place in the more prominent portion, and the cyst may discharge its contents through an external opening, either made artificially or occurring DROPSY, ENCYSTED, OF THE KIDNEY. 659 the serious consequences always arising from aa interruption to the urinary secretion. In an in- teresting case which occurred to Dr. Seyjiouii, and is described by Wr. C. Hawkins, a single cyst was found in the substance of the kidney, un- connected with its pelvis, and containing five pints spontaneously. This latter termination, however, of fluid, not possessing any urinous characters, is rare; but it may be followed by recovery ; two instances of which are adduced byM. Itaud. More frequently the cyst opens into the abdomi- nal cavity, or into some part of the alimentary canal, or even into the tliorax ; and in either case a fatal result generally ensues. In some in- stances, the rupture of the cyst has been occa- sioned by external violence. The difliculty of distinguishing this state of disease from abscess of the liver pointing externally, or from distension of the gall-bladder, is always great, or nearly impos- sible. In both these latter cases, however, there are generally more or less jaundice, more consti- tutional disturbance or greater pain in the region of the liver, more disorder of the bowels, and more interruption to the biliary secretion, than in the encysted collection ; the purulent formation being preceded by the usual signs of chronic hepatitis, and distinguished in the manner pointed out in another place. (See Liver — Diseases of.) Interesting cases of this form of encysted dropsy have been published by JMr. Brodie, Dr. Thom- son, Dr. Thomas, Dr. Abercrombie, Dr. Hast- ings, and Blr. C.isar Hawkins. In three of these cases, the early puncture of the tumour, before inflammation supervened, seemed to have been successful. But in nearly all the instances on record, where this operation was performed in a far advanced stale ot the disease, or when in- flammation of the cyst was present, a fatal termin- ation has occurred. 218. vi. Encysted Dropsy of the Kidney is sometimes observed as a consequence of obstruc- tion of the ureter, the pelvis of the organ becoming distended, and the glandular substance either atrophied or absorbed as the accumulation of fluid and distension are increased. This is evi- dently the manner in which the largest collec- tions of fluid are formed in the kidneys, and inter- esting cases of it are recorded by Bonetus (^Sepul- chretum,\. iii. sect. xvii. obs. 22.), and by Dr. Howison and Dr. J. Johnson (^Medico-Chirvrg. Beciew, vol. iii. p. 657.). In this state of disease there have been observed great irregularity in the appearances, and in the excretion of the urine. The abdomen has been very much enlarged, chiefly towards the side of the diseased kidney, with obscure fluctuation and severe pain in the spine and lumbar region. Simple cysts may also be developed in the substance of the kidney, and contain a limpid or yellowish fluid. They are generally of small size, but occasionally they are found very large. Portal describes one which contained a pint of clear fluid ; and JM. Itard another, in which there were found two cysts, the larger of which was a foot in diameter. This communicated with the pelvis of the viscus, the structure of vv-hich was absorbed, and contained a fluid of a urinous odour and colour; and most probably originated, as in Drs. .Toiinson's and Howison's cases, in obstruction of the ureter. This species of encysted dropsy generally termi- nates unfavourably in a shorter time, than, per- haps, any other, probably owing principally to 219. vii. E)icyiled dropsies oj the omentum, of the mesentery, and of the spleen, are of rare occur- rence, and can seldom be distinguished from some other diseases during the life of the patient. When fluid is found in the omentum, it is generally effused, or infiltrated between its laminae. But simple cysts containing a watery or serous fluid, of various sizes, are, in rare instances, found in these situations. 220. viii. Encysted Dropsy is very rarely seen in the thoracic cavity . Hai.ler observed it be- tween the pleura and intercostal muscles, this membrane having become so distended by the fluid as to occupy nearly all that cavity of the chest; the pericardium being also filled with water. Stokrck relates a case in which a female with consumptive symptoms experienced great difliculty in lying on the left side. On dissection, a large simple pellucid cyst, formed in the sub- stance of the right lung, and containing eight pounds of a yellowish serum, was detected. Ma- loet found, in a person with all the symptoms of hydrothorax, and who was obliged always to sit up, a similar cyst, but not so large, in each lung ; and the same productions have been observed by M. Dupuytren, in this situation and in the peri- cardium. BiBLioG. AND Refer. — i. Encysted Dropsy gene- rally Merc/inus, i)e Hydrope Saccato. Altd. 1695. — Jiuverney, Mem. de I'Acad. de Scien. de Paris, 1703, p. 178 Morgagui, Epist.lxv. art. 16. — Slevogt, De In- felici Hydr. Saccati Curatione. Jense, \72l. — Schetfler, Hist. Hydr. Saccati. Altd. 1724. — Afead, Monita et Pra?cep.'Med. cap. 8.— Bresl. Samml. 1728, p. 873. (Case containing 163 lbs. oJ fluid.) — Meckel, in Hist.de I'Acad. de Berlin, 1758, p. 58 Le Dran, in Mem. de I'Acad. de Cliirurg. t. ii. p. 431. — De Haen, Rat. Med. t. Iv. p. 71., t. V. p. 55., t. xi. p. 272. — Stoerck, Ann. t. i. p. 149. — Eisenlohr, De Hvdr. Cystico. Arg. 1784 — -Hautesierck, Recueil, t. ii. p. 3G0. — I'allisncri, Opera, vol. iii. p. 270. — Wins/lip, in Mem. of Med. Soc. of Lond. vol. ii. No. 32. — Lowdcll, in Ibid. vol. iii. p. 594. — Hebenslieil,Ve Hydr. Saccato. Lips. 1792 Langcnbcck, in Goet. Auz. 1812, p. 19. ii. Encysted Dropsy of the Ovaria, Uterus, &c. — Blancard, Anat. Pract. cent. ii. obs. 98. — Bonet, Sepul- chret. 1. iii. sect. xxi. obs.47. 70.77. ; N. Act. Nat. Curios, vol. v. obs. 69. (Extirpation proposed.) — De Graaf, De IMul. Organis, p. 1 60.— S/oanc, in Phil. Trans. No. 252.— S/iort, in Ibid. No. 381. 446. — Morgagjii, De Sed. et Cans. Morb. ep. xxxviii. art. 69,70., xlvii.art. 12 — IVerl- AoA Opera, iii. p. 771. — Paisley, Edin. Med. Essays, vol. V. part ii. p. 766 Morand,m Mem. de I'Acad. de Chi- rurg. vol. ii. p. 455. — Harder, Apiar. obs. 87, 88. — Mai- ler, Disp. Med. vol. iv. p. 401. 447. 541 — Lieutaud, Hist. .\nat. t. i. p. 357. — B««rfftoc5;/«- pcr, in Mem. de la Soc.de Med. 1788, p.46. — French, Mem. of Med. Soc. of Lond. vol. i. p. 234. — Wa/ker, in Ibid. voi. V. No. 41. — Fultcney, in Ibid. vol. ii. p. 265 Fer- cival, in Trans, of Phil. Soc. of Philadelphia, vol. i. p.i. ; and I'ssays, vol. ii. p. 1G6 Denman, Med. and Phys. Journ. vol. ii. p. 20 — Bosch, in Ibid. toI. viii. p. 444 Portal, Cours. d'Anat. Med. t. v. p. .551. — Thumann,Aa- nalcs histit. Med. Clin. Wirceb. vol. i. p. 1.39 Miil/er, in Sicbuld's Samml. Chirurg. Beobacht. b. iii. p. 440. — Baillie, Series of Engravings, &c. fasc. ix. pi. 6. Petit, in BuUel. de la Faculte de Med. 1812, p. 3 Edwards, in Edin. Med. and Surg, Journ. vol.xiv. p. 351 Voisin, U u 2 660 DROPSY IN THE HEAD- Pathology or. Recueil Period, t. xvii. p. 372 Stark, Archiv. fur Ge- burtshiilfe, b. i. st. \.—Osiunder, Neue Denkwiirdigkei. ten, b. i. st. 2. p. 198 J. P. Frank, De Cur. Horn. Morb. 1. vi. pars i. p. 31 1 . 317. and 476. — Lcofflcr, in TJtif eland's. Journ. der Pr. Heilk. b. xxiv. st. 4. p. 42. — Rostan, in Nouv. Journ. de Med. t. iii. p. 215. (The diagnosis of.)— Chevalier, in Med.-Chirurg. Trans, vol. iii. p. iO.—Mcr- riman, in Ibid. p. il— Thomson, in Ibid. vol. xui. p. 170. (Hydrometra.) — Thomas, in Ibid. vol. xiii. p. 330.— Strambio, Nouv. Biblioth. M£d. t. iii. 1826, p. 287. — Cruveithicr, Anat. Pathol, livr. v. pi. in.— De/pec/i, Chi- rurg, Clinique t. ii. p. 192. — Andral, Anat. Path. t. li. Lizars, Observ. on Extraction of diseased Ovaria, fol. Edin. W25.—Julia-Fontanclh', Archives Gener. de Med. t. iv. p. 257. {Analtjsis of the fluid.)— Smith, in Med. and Phys. Journ. Oct. and Nov. 1822.— J5«)-«s, Principles of Midwifery, Gth ed. p. \32.— Nauche, Des Malad. propres aux Femmes, 8vo. Paris, 1829, p. 104. — Ha?)iilton, On Mercurial Medicines, p. 202.— Seymour, On Diseases of the Ovaria, fol. Lond. 1830, p. 43. et seq.—Boiuin, Rech. sur r.-^vortement, p. 103. 131.— Dawce, in Archives Gen. de Med. vol. xxi. p. 214. — Diejffenbaeh, in Ibid. t. xx. p. 92. ; et Journ. Hebdom. de Mfid. 1829, t. ii. p. 246 Mme. Boivin et A. Duges, Traite Prat, des Malad. de I'Uterus et de ses Annexes, &c. 8vo. Paris, 1833, t. ii. p. 520. — EUioison, in Medical Gazette, vol. viii. p. 291., and vol. xii. p. 4.54 C. Hawkins, in Ibid. vol. xii. p. 458. iii. Of the Peritoneum and Abdominal Paiuetes. — I'ander Wiel, Observ. cent. ii. obs. 28. — Anhornius, Ephem. Nat. Cur. cent. ix. obs. 100. n. I.—Tulpius, 1. iv. c. 44 Rhodius, cent. iii. obs. G. — Garengeot, i. p. 435 — Morgagni, De Sed. &c. epist. xxxviii. art. 47. 49. 53. 58. — Chotnel, Mem.de I'Acad. des Scien. de Paris. 1728, p. \6.— Liltre, in Ibid. 1707, p. 667.— Watson, in Philos. Trans. No. 2()i. —Buchner, Miscell. 1728, p. 871 — Mon- ton,m Mem. de I'Acad. de Chirurg. t. ii. p. HB.—Blasius, Obser. Med. Rarior. pars i. No. 18. — Vogel, De Hydr. Peritonei Saccato, &c. Goet. 1761. — Lieutaud, Hist. Anat. Med. 1. i. obs. 1124. — Sandifort. Exercitat. Acad. I. ii. c. 10. —De Haen, Rat. Med. pars xi. c. 4 Allen, Synop. Med. Pract. p. 294. — Van Swieteu. ad \ 1226. — Porcherie, Journ. de Med. t. x. p. 422. — Portal, Anat. Med. t. v. p. 128. Jacquin, Med. Observ. and Inquir. vol. i. p. 7 Horn, De Hydr. Peritona;i Sac. Giess. 1790. — Mailer, in Posetvitx.'s Journ. fiir die Medicin, &c. hef. i. n. 2.—HufeUind, Journ. d. Pract. Arzeneyk. b. viii. p.l 16. —Sclig, in Ibid. b. iii. p. 21l.—B/odie, Lond. Med. Gaz. vol. i. p. 334. — Thomso7i, in Ibid. vol. i. p. 468. — Aber- crombie. On Dis. of the Stomach, &c. p. 356 — Hastings, Midland Med. Reporter, Aug. 1829.— Chantortrelle, De I'Hydr. Enkystee de Parois Abdom. &c. ; in Archives G^ner. de Med. t. xxvii. p. 218. — Dance, in Diet, de Med. 2d ed. t. i. p. 113. — C. Hawkiyis, On Aqueous En- cysted Tumours, &c. in Trans, of Med. Chirurg. Soc. vol. xviii. p. 98. (An able and instructive paper.) iv. Of the Liver. — Donatus a Mutiis, In Galeni In- terpretationes, &c. 1547 — AHj^, Observat. fasc. iii. p. 12. —Caille, in Hist, de la Soc. Roy. de Med. ad 1778, p. 212. — Carron, in Sedillot's Journ. &c. t. xxxiv. p. 159 .Ho?we, Clinical Observ. and Expei. p. 380. — /foMx, in Journ. de Med. t. xlii. p. 214. 314. — Frank, De Curand. Horn. Morb. I. ii. p. 21S.— Lassus, in Journ. de Med. Contin. vol. i. p. 115. v. Of the Kidneys. — Houston, in Philos. Trans. No. 381. — Glass, in Ibid. No. 482. — Heuermann, Be- merkungen, i. 244.— Boehmer, Observ. Anat. Rar. fasc.ii. — Haller, in Goijt. Gel. Anzeig. 1777, p. 1196. —Saudi- fort, Observ. Anat. Path. 1. iv. c. 6. p. 56. — Walter,in Nouv. Mem. de I'Acad. a Berlin, 1790 et 1791, p. 107. 159. ; and Krankheiten der Nieren, p. 8. — Martincau, in Edin. Med. Comment, vol. ix. p 282. — C. Hawkins, in Trans, of Med. and Chirurg. Soc. vol. xviii. p. 175. X. Dnopsy in the Head. — Syvi. Dropsy in the Head and Ih-ain ; Hiidrocephalus ; Hydrocepha- lum ; Iliidrorephale (vioop, water, and netpaXri, the head) ; 'TJpt)KEa.Xov, 'TJpoKS^jttXof ; Hydrops Ca- 7>;t/s, Auct. var. j Hydropme du Cerveau, Hy- drociphule, Fr. ; Der V/asserhopf, Kopjwasser- sucht, Ilirnwassersurht, Germ.; Jdrocephtilo, Ital. ; Water in the Head. 221. Defjn. — Sopor, with paralysis, ancrslhesia, or convulsions, and often xvith slowly increusins; size of the head, from a collection nf watery Jluid ivithin the cranium. 222. Jt is not my intention to notice the very rare and unimportant disease, called external hydrocephalvs. JMy limits will be more profitably occupied with the consideration of tiie very conninon, dangerous, and somewliat imperfectly vndevptood iiiiiliiily — internal hydrocepiialus. Dropsy within the head, internal dropsy of the head, or water in the head, as it is usually de- signated, may be divided into — (a) dropsy of the mend>ranes, and (6) dropsy of the ventricles. Either may occur singly, but both may exist in the same case, in various degrees. The former variety is much rarer than the otlier, and takes place usually to a much less extent. In it the water is contained in the geneial cavity of the arachnoid, and is in some instances a congenital disease, pro- ducing watery tumours, protruding through aper- tures in the cranium (j 176.). The fluid is rarely effused in any considerable quantity between the arachnoid and pia mater, and still more rarely between the latter and the brain. In dropsy of the ventricles, which is the most common, and which Meckel designates the internal dropsy of ■ the head, the water is collected in the bags of the arachnoid and vascular membranes, lining the in- ternal cavities of the brain, and is contained in all or the greater number of these cavities in the same case. 223. Dropsy within the head is idiopathic or primary, and stjmptomatic or secondary, — more frequently the latter. It is also either acute or chronic, or of intermediate grades. It occasionally commences in an acute or sub-acute form, and insensibly and gradually passes into the chronic state. It is often congenital, — in which case it is usually chronic or quickly becomes so ; and it occurs at all periods after birth, particularly during the earliest epochs, — when it is gene- rally acute or sub-acute. These circumstances are important in respect of its nature and treat- ment. 224. Hydrocephalus cannot be said to have been known to the ancients ; this term having been applied by them chiefly to collections of fluid exterior to the cranium. Hippocrates, however, in speaking of the maladies which arise from the head, notices one which hasa marked resemblance to the symptoms of the acute or sub-acute form of this disease ; and at the same time assigns water on the brain — iJJajp Itti tm Iyx6dx«, — as its cause (De Mortis, lib. ii. cap. 15. edit. Vander Linden, t. ii. p. 41 .). From IIiPPOcnATES to RiiAZEs, no mention is made of internal hydro- cephalus. But this latter writer states, in his book on the diseases of children, that the head sometimes acquires an increased bulk, owing to tiie collection of fluid within the cranium. The chronic form of this malady was described nearly a century before any notice was directed to its acute states ; but, during the last fifty years, these states have attracted attention great in proportion to their prevalence and fatality in the early stages of life. i. Acute Dropsy in the Head. — Syn. HydrO' cephalus Acutus ; H.Acutus iuternus ; Hydren- cephdlus (from v^aip, water, and l-yiii>poi\oi, the brain); Febris Hydrocephalia ; Curtis Hydro- cephalus; Apoplexia Hydrocephalica, Cullen ; IJi/drencephalon, Ilufeland ; Hydrops Cerebri Acutus ; Iliidroccphale aigu, Fifvre Ccr^brale des Knfins, Auct. Gall. ; Hydrocephalite, IJrachet. 225. Defin. — Fever, with sopnr headach, and morbid sensibility to light, &;c. ; inability to bear the erect posture ; vomiting ; costiveuess ; sereaw- ing ; dilated pupils ; squinting; convulsions and paralysis. DROPSY, ACUTE, IN THE HEAD— History of. 661 226. Lit. Hist. — Acute hydrencephalus, not- withstanding the remark of Hippocrates already referred to, was formerly confounded with cere- bral fever, or fever with determination to the brain. A case, in which it is accurately de- scribed, but considered as one of fever merely, was published by Dr. St. Ci-aik, in 1733, in the Edin. Med. Essai/s and Observations, vol. ii. p. 287. Mr. J. Paisley of Glasgow, in the fol- lowing year (in Ibid. vol. iii. p. 333.), recorded a case, with the post ??)0i7f?n examination, and first recognised it as a specific form of disease. It was not, however, until the appearance, in 1768, of Dr. \Vh\tt's " Observations on the Dropsy oj' the Brain," that the history of the malady and its nature were made subjects of investigation. The observations of Dr. Fothergii.l {Med. Observ. and Inquir. vol. iv.) contributed something to the knowledge of its symptoms ; but those of Dr. Watson, in the same work, furnished evidence merely of its extreme danger. Dr Dobson's case, published in 1775 (Ift/d. vol. vi.), was va- luable, inasmuch as it showed the possibility — at the time, very generally doubted — of curing the disease ; and of the influence of mercury in bringing about this result. Harris, however, had long before stated, as Dr. Chevne has re- marked, that a physician of experience had saved children in fevers attended by unusual stupor, and even coma, by giving them mercurius dulcis six times sublimed. 227. The opinion of VVhytt, that the disease depends upon laxity of the exhalants, or upon a watery stale of the blood, had been generally received, until Dr. Quin, in 1779, maintained that it is allied to inflammation, — a doctrine which had suggested itself both to Dr. Withering and Dr. Rush, before Dr. Quin's views had become known. Dr. Withering stated explicitly, that the malady originates in inflammation, and that the water found in the ventricles of the brain is not its cause, but its consequence. Dr. Rrsn made an important addition to its history, by showing that it may be produced by other dis- eases, especially by fevers, rheumatism, pulmo- nary consumption, the exanthemata, and worms ; and that death may supervene, preceded by hy- drocephalic symptoms, and little or no water be found in the ventricles, — circumstances which will be fully enquired into in the sequel. Dr. Percival demonstrated its frequent connection with scrofula, and seemed impressed with the idea that it is not altogether identical with in- flammation in its nature. Its inflammatory origin was afterwards supported by Dr. Patteijsion and Dr. Garnett, although neither appeared to con- sider it advisable to carry the depletory and anti- phlogistic treatment so far as such a doctrine might have warranted. This last writer believed that in hydrocephalus, a local inflammation with- out much general sthenic diathesis obtains ; and that a depletory treatment, injudiciously em- ployed, may weaken the general tone of the system, and increase the efTusion, without materi- ally diminishing the local morbid action, for the removal of which such means are employed. Of the justice of this view there can be no doubt. The local action, which has been called inflam- matory, merely because it is attended by injec- tion of blood-vessels, has been too generally treated as true inflammation occurring in a healthy constitution, and without reference eithe'' to the series of vessels affected, or to the grade or the product of action ; and, what is equally important, without regard also to the diathesis, or state of vital manifestation and power. It is unnecessary to notice here the opinions of more recent writers, as the chief of them are referred to in their proper places. 228. Descriptive History. — The Precursory or Earhj Si/mptonis of acute hydrocephalus are remarkably diversified, owing to the circumstance of their dependence upon disorder of the digestive organs, or of the circulation in the brain and membranes ; and it is chiefly owing to the pre- dominance of the symptoms referrible to one or other of these parts that the disease has been divided by some writers into the primary or idio- pathic, and the secondary or symptomatic. The possibility, however, of making the distinction in practice, is not so easy as some writers would make it appear. For the dependence of the functions of the liver, and digestive organs, upon the state of circulation in the enceplialon, and of the latter on the former, is so very intimate, that it is often impossible to ascertain which is primarily affected. The majority of writers on the disease in this country, consider that the diges- tive organs are the first to betray disorder ; whilst the French pathologists and Dr. Abercrombie believe that the morbid action very frequently commences either primarily or simultaneously in the brain itself. I am convinced, that the true acute hydrocephalus originates more frequently in the encephalon, than the abdominal functions indicate, and at a period anterior to the disorder which these functions manifest, — such dis- order often proceeding from the silent morbid action in the brain, reacting on it, and promoting the evolution of those changes constitutmg the disease ; and that, when hydrocephalic symptoms supervene more suddenly and violently, and with- out much previous disorder of the chylopoietic viscera, or nervous system, they have a more intimate relation to acute or sub-acute inflam- mation of the brain and its membranes, than to those states of morbid action which terminate in copious efTusion, and to which the term hydro- cephalus is more strictly applicable. The chief exceptions to these inferences will be found in those who inherit a peculiar morbid diathesis or predisposition to the malady — who are scrofu- lous or weakly constituted, — and in these the brain and its membranes will often coetaneously suffer, in a greater or less degree, with one or more of the digestive organs; the excited action it experiences being either attended, or soon fol- lowed, by deficient power, and by relaxation of the exhaling surfaces. In these cases, as well as in those m which it is ushered in, or predis- posed to, by derangements of the abdominal vis- cera, it does not, as in true cephalitis, readily occur in a previously healthy constitution, but chiefly in states of pre-existing ailment, or as a cdnsequence of inflammatory action arising under such circumstances, — in which not only the chylopoietic viscera imperfectly perform their functions, but also the organic nervous system is weak, and the capillary vessels and exhalants are so deficient in tone as to be readily relaxed or exhausted when over-excited. In other words, that acute hydrocephalus is a consequence of Uu 3 CS2 DROPSY, ACUTE, IN THE HEAD — Foums, etc. of. disease, which originates variously ; — in some it is the result or termination of inflammatory action, occurring ia a weak or morbid state of consti- tution,— in others of general febrile excitement, affecting patients similarly constituted, or occa- sioned by accumulated morbid secretions and excretions, or by local irritation ; — that it stands in the same relation to inflammation as other acute dropsies ; and, even when most inflammatory, that it differs from encephalitis much in the same way as phlegmon differs from erysipelas, or as acute peritonitis differs from the true puerperal fever. From what I have now stated, it will appear important to be acquainted with the symptoms indicating the pathological states ter- minating in acute hydrocephalus. These may be referred to two principal seats, viz. the head and the abdomen, but with the understanding that, in many instances, although the more distressing ailments seem to proceed from the one, the pri- mary and principal disease may exist in the other. 229. Foums and Stages of the Disease. — ('a) The Forms have been chiefly referred to the mode of attack and symptoms of the first stage. Dr. Cheyne has particularised three varieties ; the gradual, the sudden and violent, and the second- ary. These answer to the nervous, the inflam- matory, and the consecutive, respectively, of HopFENGAUTNER and KunN. GuEiiSEXT dividcs the disease into the ataxic or febrile, and the apoplectic; Itard, and several writers, into the idiopathic and symptomatic. M. Braciiet desig- nates three forms; the nervous hydrocephalitis, the inflammatory, and the gastric ; but it is very diflicult to distinguish the nervous from the gastric form. GoELis distinguishes merely the acute, and the hyper-acute or waterstroke. The division re- commended by Cheyne and HoPFENGARTNER is, upon the whole, the best ; it matters but little how the forms are named. The terms, however, used by the German writers seem to be the least objectionable. — (ft) Since the appearance of Dr. Whytt's description, the disease has usually been divided into periods or stages. But much difference has existed as to the number of stages, and as to •what symptoms indicate them. Goelis points out four periods, viz. of turgescence, of inflam- mation, of effusion, and of palsy. WlIYTT, QuiN, TissoT, Baader, Sprengel, Cheyne, and others, mention three, according to the three different states of the circulating and nervous systems that obtain in the course of the malady. Some vi^riters notice, with P. Frank, Rush, and Con- BADi, only two stages; whilst Formey, Von PoRTENscHLAG, and GuERSENT descHbe none. This diversity depends chiefly on the irregular progress of the disease, its uncertain commence- ment, and the circumstances referrible to the constitution and previous health of the patient under which it occurs. I shall adopt the divi- sion, employed by Dr. Cheyne and .others, into — 1st, that of increased sensibility; 2d, that of diminished sensibility ; and, 3d, that with palsy or convulsions. 230. A. The Nervous form is generally pre- ceded by, or rather coniiiiences with, a great va- riety of symptoms, which continue a longer or shorter time before the disease is so fully deve- loped as to be recognised, or as to excite the attention or alarm of the friends. For several days or weeks, or even for months, the cliild is vertiginous, liable to fall or stumble while at play or running about, is nervous, and starts or is fearful from slight causes, and more or less ca- pricious in its appetite, or without appetite. The tongue is slightly furred, and white ; the bowels are costive ; the motions offensive, unnatural, clay-like, and indicating a morbid or deficient biliary secretion ; the breath is foetid ; the urine is somewhat diminished in quantity ; the com- plexion fades ; the features collapse ; the sleep is disturbed and dreamy ; the eyes become heavy, very sensible to light, have a dark line under them, and lose their animation ; the hypo- chondria and abdomen are often tender or tumid ; and the child complains of occasional pains, which resemble rheumatism, in these regions, par- ticularly in the region of the liver, and some- times in the limbs. Various other symptoms are conjoined to, or supervene upon the foregoing, which continue frequently for a considerable time, without additional ailment, or confining the pa- tient. But sooner or later they become aggra- vated ; the surface assuming a harsh, sallow, or unhealthy aspect. The movements are now lan- guid; the sleep more and more disturbed and un- refresliing, and the disposition to it often greater. Giddiness, slight pain or noise in the head, tender- ness of the scalp, and pains in the neck and limbs, are complained of. The countenance is heavy ; the sense of sight and hearing often very acute ; the intellect precocious ; and the pulse is quicker, and more excitable than natural. The child is drowsy, silent, or appears as if in a reverie, and indifferent to those persons and objects he was formerly interested in. He is also irritable, or dejected, sighs often, and yet frequently makes no complaint when questioned. Purgative me- dicines usually procure scanty, clay-like, pale, or greenish and slimy evacuations. These symp- toms are very frequently removed by active purg- atives; and although they often run into those indicating unequivocal disease within the head, yet they indicate nothing beyond a general and grave disturbance of the functions. But when they persist after proper treatment, or are neg- lected, the Jirst stage may be considered as being actually present, although it should be rather viewed as commencing with the first signs of ailment; more pathognomonic symptoms super- vening on the foregoing indefinite ailments. The above series of symptoms nearly agrees with the first period, or that of turgescence, of GOEEIS. 231. (a) The pain in the head returns more frequently and acutely ; and is often attended by severe ear-ach, by aching of tlie eyes, and more commonly by increased sensibility to light and noise, and alternate chills and flushes. 'The pulse is now quick, excitable, and of irregular strength and frequency. The gait is unsteady ; the skin warm, dry, and unhealthy ; the pains through the trunk and limbs more frequent and severe, and accompanied with sickness and vo- miting, particularly on getting up in the morn- ing. The tongue is loaded or furred. There is occasionally dragging of one leg, or a raising of the foot as if stepj)ing over something in the way, or a painful crick in the neck. The stools, from being scanty, costive, and clay-like, pass to dark green, and a gelatinous or spinach-like state, ex- hale a sickly and peculiar smell, and are still DROPSY, ACUTE, IN THE HEAD — Forms and Stages of. 663 procured with difficulty, this change depending chiefly upon the morbid condition of the secretions poured into the digestive canal : the urine is scanty and turbid, and lias often a milky appear- ance (OniER, CoiNiJET, and Vieusskux). The erect posture or motion, paiticularly rotating the head, brings on sickness and retchings, without the appearance of offensive matters. There are also great fretful ness and restlessness ; contracted pupils; frowning, or knitting of the brows; in- ability to sit up ; a whining or moaning noise when lying down ; and sometimes a slight cough, with irregular suspirious breathing. The sleep is short and restless ; the infant rolls its head on the pil- low, or often wakens with a scream or crying, and raises its hands to its head. The nostrils and lips are dry and cracked. This period is very variable in duration, but it usually continues from ten to fifteen days. 232. (/)) Second stage. — The pulse, from being very quick, excitable, irregular, and weak, now becomes slower — sometimes as slow as natural, or even more so ; but chiefly when the patient is in the horizontal position ; for if he attempt to sit up, it generally acquires its former frequency. The sensibility is now remarkably impaired : sopor or stupor gradually supervenes, witli dilated pupils, squinting, and imperfect or double vision. The eyes are dull, heavy, vacant or staring; the eyelids drooping or half closed. Sickness or retchings are now less frequent, unless the child be raised up, when one or both often occur. The excretions are passed unconsciously, and are scanty, and procured with difliculty. The stupor is interrupted by exclamations, or shrill piercing screams; the hands, which are tremulous, being raised to the head or neck, or occupied in picking the lips or nostrils. Emaciation pro- ceeds rapidly ; but food is generally swallowed greedily when presented. These symptoms are, however, by no means uniform ; for the pupil is frequently, particularly at first, oscillatory, or, although dilated, affected b}' light. The stupor, also, is not always constant ; nor does the pulse always become slow. Deep inspirations, hectic flushings of the cheeks, catchings of the muscles, cold extremities, low delirium, and an almost total suppression of urine, are occasionally observed. The duration of this period varies from four or five days to two weeks. 233, (c) The third ituge has been generally re- cognised by the returning frequency of pulse, which is often remarkably rapid, thready, and weak ; by the occurrence of general or partial convulsions ; by paralysis of one side or limb ; by twitching of one or more of the muscles ; and by suffusion of the eyes, the eyelids being motion- less, and the cornea becoming dim and filmy. Often, when one side is paralysed, the other is more or less convulsed. The patient is now either insensible or delirious. He rolls his head on the pillow, grinds his teeth, moves the unpal- sied hand in the air, and moans or breathes heavily and hurriedly. Alternate flushings and pallor, or flushes of one cheek, the other being pale; irregular distribution of the circulation ; partial sweats; cold extremities; irregular, or stertorous breathing ; an eruption of vesicles about the mouth, or on the face and upper part of the chest (FoRMEv, GoELis, ScHsiAi.z, Rai.-\iann, and myself); collapse of the countenance; blucness or paleness of the lips ; and more rarely, spha- celating sores ; are remarked towards the close of the disease. 'Jlie dilatation of the pupil and strabismus generally continue throughout this stage, which may terminate fatally (generally in a violent convulsion) in a few hours, or it may last for ten or twelve days or even longer. Such is the common course of the most frequent form of the disease, which comprises the Nervous and Gastric of Bkachet; and which may either originate in the encephalon, or in the digestive oryans. But it is seldom that the early history of the case is so precise as to enable the physician to draw a correct inference as to its commence- ment. In some instances, I have observed slight symptoms of cerebral disease, for some weeks, or even months, after repeated attacks of congestion or of inflammatory action within the head, of a well maikcd character, but supposed to have been removed by treatment. In some of these cases, the disorder of the digestive organs was so evident as to give rise to the idea of the primary affection of these viscera, indicating the difficulty of ascertaining the parts first deranged, 'i'he in- formation furnished, in most instances, seldom enables us to carry our pathological analysis sufficiently far back to connect the early ail- ments with their causes; and, consequently, we often fail in ascertaining the quarter where disease commences. 234. B. The InJIammatory variety, or the second form of Dr. Cheyxe, of M. Coindet, and of IIopFENGAUTNER, is morc acute than the pre- ceding. The precursoi-i/ symptoms are generally of short duration, and sometimes so slight as to be overlooked. 'i'his variety nearly resembles fever, with predominant affection of the head ■ and in many cases it is not to be distinguished from inflammation of the brain and its membranes (see Brain, § 174. et seq.), the disease being merely a modification of inflammatory action, de- pending upon diathesis, and previous state of health ; and, owing to these circumstances, giving rise to effusion. After the child has been drooping for a short time, fever, with slight, short, and irre- gular remissions, flushings, severe headachs, in- creased heat and sometimes soreness of the scalp, augmented sensibility, thirst, hot skin, brilliancy of the eyes, and tenderness over the abdomen, super- vene ; the pulse being rapid, hard, or small ; and the tongue white or loaded. Stupor or unwilling- ness to be roused, alternating with violent screams, and complaints of the head and belly; great irri- tability of the stomach ; retching readily brought ou by changes of position or by sitting up ; a morbid and scanty state of the al vine evacuations ; a vacant, dejected, or heavy expression of the eyes ; a pained and terrified look; occasional cramps of the extre- mities ; and diminution of all the secretions and ex- cretions; commonly characterise this form of the malady. This first stage is usually accompanied wilh many of the phenomena of the first period of the foregoing variety : the chief difference being in the more febrile condition of that now under consi- deration, in the earlier and more evident connection of the symptoms with the brain, and in the shorter continuance of this stage. As soon as the changes which attend ihe second period, viz. dilated pupils, strabismus, stupor, diminished frequency of pulse, &:c. appear, the progress of this is in all respects the same as that of the first variety ; the stages being U u 4 664 DROPSY, ACUTE, IN THE HEAD — Remarks ox. more distinctly marked, but frequently of shorter duration, than in it. This form is generally idio- pathic, whilst the foregoing is often symptomatic of disease of the liver and digestive organs. 235. C. The Consecutive variety is observed in an advanced stage of some acute disease, or soon after its decline, assuming either of the foregoing forms. It may follow the disappearance of some scrofulous affection ; in which case it generally presents the characters of the first variety. It may come on after scarlatina or measles, and early in hooping cough ; and it then commonly makes its attack with all the violence of the second variety. When it appears during remittent fever, difficult dentition, and in the latter periods of pertussis, it often steals on so imperceptibly, as not to be re- cognised until dilated pupil, strabismus, convul- sions or paralysis, and other symptoms of the ad- vanced stages, are remarked. In such cases, the symptoms of the early period are liable to be confounded with those of the malady of whicii it is consecutive. Pain, which is one of the most prominent features of hydrocephalus, is sometimes but little felt in this form. 236. Remarks. — The varieties now pointed out can be recognised only during the first stage, and chiefly by the mode of attack, which, in the Jirst, is always slow and insidious. This is the most frequent form of the disease. In the second the attack is more suddep and tumultuous ; its first stage lapsing into tiie second in from two to four or five days. This, however, is the least fre- quently observed in practice, and is hardly to be distinguished in its first stage from inflammation of the brain and its membranes, of which it is only a modification or termination, when affecting the more central and internal parts of the encephalon It occurs in more healthy children than the other forms do, and is commonly idiopathic or primary. The third variety often proceeds not only insid ously, but rapidly ; and is generally the most fatal. It -may present very unequivocal inflam matory chai'acters in some cases, particularly when it follows the exanthemata ; and in others neither the symptoms, nor the appearances upon dissection, of true inflammatory action, may be observed; as when it is consecutive of hooping cough, remittent fever, and other affections, chiefly referrible to the digestive organs. During the progress of all the forms of the malady, espe- cially the first and third, the febrile symptoms are very irregular, and often only occasionally present. The thirst and appetite are also various ; and the breathing is sometimes calm and soft, and, at others, laborious, quick, and suspirious. The circulation is at times irregularly distributed, the head being hot and the cheeks fluslied, while the lower extremities are cold -, and at other times it is more equable, the countenance being pale, the skin warm, and even perspirable throughout. The bowels are genera II V as already described; but, in some cases, a bilious purging attends the vomiting. In a few instances, after the delirium, insensibility, and convulsions in the last stage, a return of the senses and intellect has ushered in dissolution. 237. In young infants, hydrocephalus is ascer- tained with much difficulty, and is liable to be confounded with disorder of the digestive organs, 'i'lic knitting of the brows, watchfulness, moaning, fevcrishness, the throwing back of the head, starting from sleep with a cry of alarm, frequent vomiting, aversion from light, the peculiar character of the stools, the half-closed eyelids, the full or dis- tended fontanel le, and hanging or rolling of the head on the nurse's arms, are the chief symptoms. The expression of pain is not violent at this epoch ; and there are not, in this disease, the drawing up and flinging out of the legs, with screaming and crying, as in colic or griping pains. It seldom, however, appears before the period of dentition ; but, when it occurs about this period, it is often ushered in by convulsions, or convulsions appear at an earlier stage of the malady than in older children, 238. The duration of acute hydrocephalus is extremely various. When it has reached the second stage, its duration is very uncertain ; for death may supervene in a few hours, or not until after two or three weeks. In young infants, it frequently advances most rapidly. Fothergill, CoiNDET, Sprengel, Cheyne, Goelis, &c. con- sider that it commonly runs its course within three weeks. Whytt, Frank, C. Smith, Yeats, and others, believe that it may be protracted much beyond that period. The consecutive form may terminate in about a week; and the inflammatory seldom lasts longer than three weeks ; but the first or nervous variety may continue for four, five, or even six weeks or longer, if the earliest symptoms be taken into the account. In some instances, especially of the first form, the disease may assume a nearly chronic character, or a state intermediate between the acute and chronic, or may pass alto- gether into the latter, especially in young chil- dren ; a slight separation of the sutures, enlarge- ment of the head, sallowness, marasmus, palsy, &c. taking place ; and a larger collection of fluid being found in the ventricles than in the more acute states, although less than in the congenital and chronic. The most common duration of the disease, according to my experience, is from two to four weeks. There is great difficulty, as re- spects the first and third forms particularly, in de- termining the period at which the malady giving rise to the effusion begins. As to the efiusion it- self, it may commence coetaneously with the second stage, or not until a subsequent period. 239. Appearances on dissection vary remarkably, even in cases belonging to the same form of the disease. — (a) In the first form, the veins of the membranes are generally found congested, with dark-coloured blood. In a few instances, I have observed inflammatory appearances in the longi- tudinal sinus; and a similar observation has been made by Biicnoi.z. The ventricles usually con- tain from two to six or eight ounces of limpid serum. The substance of the brain is soft and blanched, especially towards the central parts ; and in the vicinity of the ventricles it is often very much softened, the fornix and septum lucidum being more or less disorganised, and soft like curd. Tiie choroid plexus is pale, sometimes granulated. The pituitary gland is occasionally infiltrated, or otherwise slightly altered (Morcagni and my- self) ; a slight watery infiltration of the substance of the brain has also been noticed, 'i'ubercular formations have been found in various situations within the cranium (Laennec, Merat, &c.). Several other slight lesions of the encephalon have been observed ; but they are by no means con- stant, and may be viewed as merely contingent DROPSY, ACUTE, IN THE HEAD — Grades of. 665 changes. The liver is often inflamed, some- what enlarged, and extensively adherent to the adjoining surfaces. Dr. Cheyne has remarked small white tubercles on the surface of this organ ; and I have seen them in this and other parts of it, as well as in the spleen. The mesenteric glands are frequently enlarged, and contain caseous de- positions. The stomach and intestines are some- times inflamed, the latter constricted, and even intus-suscepted. The mucous follicles of the di- gestive canal are often enlarged. 240. {b) In the second, and in most of the third, forms of the disease, the brain and its mem- branes, particularly towards the base and central parts, present many of the usual appearances of inflammatory action, especially injection of the vessels, and thickening and opacity of the mem- branes, in addition to effusion of serum. The fluid is not so generally limited to the ventricles in these forms as in the first, is usually in less quantity in these cavities, but is effused also be- tween the membranes, especially in the general cavity of the arachnoid, or between this membrane and the pia mater, elevating the former, and thereby exhibiting a gelatinous appearance. Bonet and Greding observed effusion between the cranium and dura mater ; and Dr. Abercrombie tliinks this not a rare occurrence, and that it is the source of the fluid which escapes upon open- ing the head. Thejluid itself is much less limpid in these varieties, than in the first ; it being often turbid, or whey-like, containing minute shreds of lymph, and presenting evident traces of albumen. In many of the cases belonging to the second form, the cerebral substance retains its consistence, its cut surface indicating increased vascularity. In some cases, the surface of the ventricles is covered by a fine film of lymph, which hardly adheres to it. la several instances of the disease consequent upon scarlatina, I have observed the effused fluid of a turbid, brownish, and sanguineous ap- pearance. 241. D. Hyper-acute Hydrocephalus; Apoptexia Hydrocephalica ; Wasserschlag, Germ.; or Waterslruke, — The sudden effusion of water on the brain, although noticed by some other writers, was first described by Goelis. He stales that it may take place eitlier idiopathically, or in con- sequence of various diseases. Although I have met with many cases of its consecutive occur- rence, I have seen none that could be strictly called idiopathic. It most commonly appears in the advanced stages of the exanthemata, after the repulsion of chronic eruptions, as tinea ca- pitis, crusta lactea, discharges from the ears ; or after the arrest of habitual evacuations and ex- cretions, as chronic diarrhoea, dysentery, the choleric fever of infants, habitual perspirations, &c., and when the powers of life are much re- duced. In all such instances, it is to be consi- dered merely as a more rapid form of the third, or consecutive, variety of hydrocephalus already described ; taking place, in some instances, with surprising suddenness, and terminating fatally with great rapidity — sometimes in from twelve to twenty-four hours. The attack, under these cir- cumstances, is seldom or ever recognised until the symptoms of the second or third stage of acute hy- drocephalus supervene. Goelis supposes, from the appearances of vascular turgescence observed in some cases after death, that a degree of inflam- matory action may suddenly supervene, and be coincident with effusion. But it is very rare that marked vascularity of the membranes and brain of children is not observed upon dissection, what- ever may have been the disease of which they died. It is very probable that increased deter- mination of the circulation has preceded, or accom- panied, the efliusion in these cases ; but the vascu- larity is no proof of inflammation. 'Wg. effusion, in the several mstances of this kind that I have examined, was chiefly in the ventricles, although partly also between the membranes; was generally in less quantity than in the common acute disease, — in all the cases, under four ounces ; was less turbid than stated by Goeljs ; and occurred in children who were of an unhealthy habit, lax fibre, and much reduced by disease. 242. E. SuE-AcuiE Hydrocephalus. — This form of dropsy in the head, already alluded to, is deserving of more particular notice, from the fre- quency of its occurrence. I have met with it most commonly as a slighter grade of the^'?st ru- ne;!/ described above (§ 230.). It generally oc- curs between the second month and the com- mencement of the second year of age. After the continuance of many of the symptoms characteris- ing the first stage of that form, the head begins to enlarge, with slight separation of the sutures, and imperfect develof>ement of the symptoms of the second stage. In many cases, the disease is slighter, and the duration longer, than in the first form; but, in others, the symptoms are quite as severe for several days, when the yielding of the cranial parietes before the eflfused fluid seems to abate their violence. In some cases, the malady is prolonged merely for a few days ; in other cases, for a much longer peiiod, so that it runs into the chronic. In rare instances, recovery is slowly and insensibly established, the patient — especially if nature be judiciously assisted by art — outgrowing, as it were, the disease. During its progress, the symptoms vary but little in kind from those al- ready described. The bowels are generally irre- gular after havingbeen long torpid, and they some- times become lax, the stools being mucous, unna- tural, and offensive. In some instances, diarrhoea comes on during the advanced stages ; and if this be not checked, and if the powers of life be sup- ported or promoted, and appropriate remedies pre- scribed, recovery may take place. But more fre- quently the loss of flesh, general cachexia, disorder of the bowels, sopor, paralysis, &c. advance slowly, until convulsions or exhaustion terminate life. 243. Dissections. — In all the cases I have ex- amined,the fluid eftused was altogether in the ven- tricles, has exceeded eight ounces, and was either entirely or nearly limpid. I'he brain surroundino- the ventricles was frequently softened ; but, ex- cepting a common injection of the membranes, there were no remarkable inflammatory appear- ances in the encephalon. A thin film of mucous lymph covered the surface of the ventricles in some instances. An increased quantity of fluid was occasionally found about the medulla oblon- gata, and in the spinal canal. The liver was often more or less inflamed or enlarged, the di- gestive mucous surface also inflamed in various parts, and Fever's glands were enlarged — in some cases ulcerated. The mesenteric glands were frequently diseased in the manner stated above (§ 239.). 666 DROPSY, ACUTE, IN 244. Dr.\GX0Sis. — Although the disease is rea- dily ascertained in its far advanced stages, when it is nearly or wholly beyond the reach of me- dical aid, it by no means admits of easy recog- nition at an earlier period. Indeed, as will be hereafter shown, the effusion being often an oc- currence contingent on a variety of ailments, and often arising out of a morbid condition of the system, and of the parts contained within tlie cranium, no early diagnosis can be formed; for the functional disturbances and general febrile commotion characterising the commencement of the disease, are readily removed in many in- stances, whilst, in others, apparently as slight, or even slighter, the symptoms commonly attributed to the effusion will rapidly supervene, notwith- standing the most judicious treatment : and, after all, it remains very questionable, whether or not the symptoms commonly attributed to the effusion are not rather the results of the changes which have taken place in the organic nervous influence, in the circulation, and in the structure of the brain, upon which changes the effusion is merely contingent, than the consequences of the efi'usion itself ; for I have observed, in several cases, as much fluid eflfused within the cranium, there hav- ing been no hydrocephalic symptoms during life, as in the most marked form of the disease. We have, moreover, seen that, in many of the cases of inflammation of the brain, or of its membranes (see Brain, § 175.), very nearly tiie same train of symptoms appear as in acute hydrocephalus, and yet little or no effusion takes place ; and that, in the more inflammatory variety of this malady, where the symptoms characterising the advanced stages are most marked and uniform, the quantity of the fluid eflfused is generally the least. Where, however, we see a ciiild in a state of insensibility, rolling his head upon the pillow, frequently grinding his teeth, screaming acutely, moving one hand in the air, while the other is palsied, with a hectic on the cheek, drooping eyelids, heavy vacant stare or strabismus, dull filmy cornea, dilatation of the pupils, collapsed features, general emaciation, partial sweats, suspirious, laborious, or rapid bi'eatliing, and convulsions, after having been ailing for some time, and more recently affected by febrile action, with marked disorder of the digestive organs and of the head, it may be infened that effusion has taken place within the ventricles, and at tiie base of the brain, chiefly in the former; but of this there is no complete cer- tainty, for very nearly the same phenomena may arise from extensive encephalitis, or from inflam- matory softening of the brain, at their most ad- vanced stages. 245. (a) I have already staled that the disease, in its inflammatory form, is nearly related to iii- Jiammiilion nf the brain and its inenibrmies ; and I may now add, that, in tiie first form descriiied, it is often ciiually closely connected with softening of the organ (see Urain, § 214.). In many cases, the distinction is made with great difficulty, and in some it is not to be made at all ; for the effu- sion is, in such, merely one of several coexistent changes either immediately consequent upon, or more remotely following, the inflammatory act in the former class of cases, and the softening in the latter. When, however, any diagnosis can be established by the close and experienced observer, it is most important to be guided by it. Tlie tur- THE HEAD — Diagnosis. gescence, which attends inflammation of the brain, often gives rise to symptoms which nearly resem- ble those produced by watery efl^usion : and it is only by estimating the history of the case in con- nection with the causes and a number of existing phenomena, that an opinion can be formed as to the exact state of disease. — a. Encephalitis oc- curs more frequently in previously healthy ciiildren ; its attack is sudden, and the progress of its early stage rapid and tumultuous : hydro- ceplialus appears in the unhealthy ; and consecu- tively either of previous attacks of congestion or inflammation of the brain, or of disease of the di- gestive and chylopoietic viscera, — generally in a* gradual, slow, or insidious manner; the former being commonly an idiopathic, the latter often a symptomatic disease. — /3. In encephalitis, pain is constant and throbbing, increased by any ex- citation of the circulation, frequently preceded, or attended, or followed, by distinct chills or rigors : in hydrocephalus, pain is intermittent or remittent, shoots with great violence, occasioning anguishing screams, wants the pulsating charac- ter, is not increased by what excites the circula- tion, often alternates with pains in the abdomen, and is seldom attended by chills or rigors. — >-. The sickness and vomiting, symptomatic of the former, are unaccompanied by the fulness and tenderness of the hypochondria and epigastrium which commonly precede and attend these symp- toms in the latter malady. — ^. The coun(e- nance in encephalitis is tumid and injected, the features enlarged, the attendant fever of a sthenic or phlogistic character, and its progress very acute : in hydrocephalus, particularly its first and most common form, the countenance is not very sensibly tumid ; the cheeks only are irregularly flushed; the thirst is not so great, nor the ano- rexia so complete ; the febrile heat is not so high, so general, or so constant ; the surface is not so full and animated, nor is the pulse so steady and strong as in the former disease. The pulse is more excitable, irregular in strength and fie- quency, in tiie respective stages ; more rapid and weak at the commencement, and partakes more of the asthenic character, in the latter malady ; the emaciation is also greater and more rapid. — £. Tiie stools in encephalitis are devoid of the peculiar characters they present in acute hydro-, ccphalus; they are not of tiie same dark greenish colour, have not the gelatinous consistence, with the oilincss and glossy appearance, of those in the latter; nor do they possess the peculiar sickly, but not foetid smell. — ?. The contractions and spasms of particular limbs and muscles, often observed in encephalitis, are seldom met with in hydrocephalus ; whilst, in the latter, paralysis is more common. From the circumstance of in- flammatory appearances in the membranes, as well as of softening in the central parts of the brain, having been often found in hydrocephalic cases, in addition to the effusion of fluid, it may be legitimately inferred, that the disease will often jiartake more or less of the symptoms usually caused by these lesions (see BitAiN,§§ 146 — 182. 214. et seq.) ; and that cases will occur but slightly modified in their characters from those consisting of inflammation on the one hand, and of softening on the other ; the former commenc- ing suddenly and acutely, the latter slowly and insidiously. DROPSY, ACUTE, IN 246. (b) Acute hydrocephalus may be dis- tinguished from fever, by the somnolency, knit- ting of the brows, tlie great irritability of tlie stomach, which is increased by motion and the erect posture ; by the raising of the hands to the head, the throwing back the neck, the excitability and irregularity of the pulse, the peculiar charac- ter of the evacuations, and obstinate costiveness ; by the pains shooting in various parts, and the overpowering headach which admits not of the head being raised, — the pain darting at intervals through the centre of the brain, and not throbbing as in phlogosis, nor being increased or brought on by excited circulation ; and by the starting, peculiar scream, and the expression of anguish when the child is awakened by it 'from the con- stant dozing, into which he instantly afterwards falls. — a. The infantile remittent fever is distin- guished from this disease by the absence of the above symptoms, by the expression, by the regular morning remissions, and by the feculent, brown, and more easily procured evacuations. — i3. Typhoid or adynamic fever is rare in children, and is to be distinguished from this malady, by the more ecjuable pulse, by the dark and foetid stools and diarrhoea, low muttering delirium, supine posture, tumid abdomen, sometimes by petechias ; by the dark brown, tough sordes on the teeth and gums; by tlie slipping down in bed ; and by the absence of acute pains, convulsions, paralysis, and of the other remarkable symptoms of hydrocephalus. — y. The febrile disorders produced by worms are generally more protracted than this disease; are without distinct stages, but with manifest remis- sions,— the sleep being sound, and pulse uniformly quick. In worm fever, the pains in the head and abdomen are dull and not much complained of; the appetite is ravenous, the stools spontaneous and copious, the urine abundant and pale, the perspiration free, the cheeks generally pallid, the sight and hearing are unaltered, the mouth and nose moist, the abdomen is constantly tumid, and the body but little or not at all emaciated ; and if convulsions occur, they are not followed by paralysis. It should not be overlooked, that either of these states of fever may give rise to aqueous effusion on the brain, the early symp- toms proceeding insidiously, or being masked by the primary disease, and thus often escaping de- tection until some of the characteristic symptoms of hydrocephalus supervene. 247. (c) Various organic lesions within the head may occasion very nearly the same series of morbid phenomena as constitute this disease; but generally they are of much longer duration, and are not attended by so much emaciation, or such overpoweiing pain in the head. The stages of the malady are not so well marked. Rarely, however, do organic changes occur in the ence- phalon or its membranes, in children, without the effusion of more or less fluid. 248. yd) The strangulating or crowing in- spiiation, with purple complexion, not followed by cough (see Larynx — Spasm of), but often accompanied by clenching of the hand on the thumb, with spasms of the toes, has been con- sidered by many as connected with acute hydro- cephalus. Without denying that this affection may occur as a symptom at an early stage of the disease, it should be recollected that it often dis- appears after scarifying the gums, or cutting the THE HEAD — Diagnosis, 667 teeth, or removing morbid secretions. The con- vulsions attendant on hydrocephalus are generally characterised, as Dr. Ciieyne justly remarks, by a greater affection of one side of the body than of the other ; one arm or leg is, with some re- gularity, retracted and flung out, while the other is affected with spasmodic catchings ; the eyes are suffused ; there is often a circumscribed flush on the cheeks, and the breathing is slow, or irre- gular and sobbing. 249. (e) Exhaustion of vital power may oc- casion symptoms often closely resembling acute hydrocephalus. The circumstance of exhaustion giving rise to hydrocephalic symptoms — in some cases without any effusion, in others with the collection of more or less fluid — has been well known to me, and acted upon in my practice at the Infirmary for Children, for many years. It was first very imperfectly alluded to by Dr. Cheyne ; and subsequently by Dr. ABEncROaiBiE, Dr. Goocii, Dr. Dahwall, and others, who ap- pear not to have clearly understood it. These writers consider this consecutive affection as one of exhaustion of nervous power only: but I infer that something approaching to hydroce- phalic is occasionally connected with it; for the benefit afforded by nutrients, stimulants, or tonics, is no proof that the exhaustion has not been attended by some degree of effusion. Indeed, the physical condition of the brain renders it most probable that some fluid is collected, owing to exhaustion, diminished nutrition, and the state of the cerebral circulation ; and that it is absorbed as the pathological states that occasioned its effu- sion are removed by appropriate treatment. The appearances observed in the fatal cases fully con- firm this view. I am at this time attending two cases of this affection that fully illustrate its nature. It is generally consequent upon wean- ing, improper or imperfect feeding, protracted diarrhoea, and exhausting treatment; and is usually attended by loss of flesh, increased sen- sibility and irritability, a feeble quick pulse, tiansient and irregular flushings, quick breath- ing, sometimes sighing or moaning, a white loaded tongue, scanty urine, and a mucous diarrhoea, — the evacuations being flatulent, unnatural, green- ish, or gelatinous. Sometimes there is increased heat of the head towards night, but seldom any pain or screaming. In addition to evidence of pre- existing or attendant irritation of the digestive mucous surface, the bronchial lining, also, often indicates iriitation by a dry hacking cough. Tliis first, or irritative stage of the complaint is fol- lowed by one of more marked exhaustion, with stupor or torpor, particularly if the causes con- tinue in operation. The pupils become dilated ; the eyes vacant, and sunk in their sockets ; the eyelids half shut ; the countenance pale and cool ; and the extremities, especially the lower, cold. If the complaint occurs during dentition, sometimes squinting, with partial convulsions, or with crow- ing or croupy inspirations ; slow, irregular, or suspirious breathing ; clenching of the hands, or s)iasms of the fingers and toes ; are observed. The feet and legs are always cold, and with difficulty kept warm, especially if the head be hot. The fontanelle is sometimes depressed, or nearly na- tural. The pulse seldom or never loses its fre- quency. This torpid stage may terminate fatally with increased coma, a rattling respiration, sink- 668 DROPSY, ACUTE, IN THE ing and disappearance of the pulse, and profound exhaustion. Convulsions occasionally occur, but ,at no particular period of the complaint. A fa- vourable issue frequently follows an appropriate treatment. In some of the cases which have ended fatally, I have found, on dissection, more or less fluid in the ventricles. The membranes were even less vascular than commonly observed in young subjects. In these cases, death is more to be imputed to disease in other viscera, and the attendant exhaustion, than to any change witiiin the head. 250. (f) When acute hydrocephalus is con- secutive of scarlatina, measles, small-pox, &c., it becomes important to detect it as early as pos- sible. These diseases may terminate fatally, in their latter stages, copious effusion having taken place in the ventricles, and between the mem- branes of the brain ; or the symptoms of this malady may not commence until a few days or even weeks after they have disappeared, more particularly after scarlatina. Severe and fre- quently recurring pain in the head at this pe- riod should always receive attention; and when this is attended with other symptoms of tiie first and second stages, decided measures should be adopted. Wlien it follows scarlet fever, the occurrence of headach, stupor, or convulsions, either with or consequent on anasarca, may be viewed as evidence of approaching or commenc- ing effusion in the head, which may be averted by antiphlogistic and other appropriate reme- dies. 251. Prognosis. — This disease is not now so fatal as it was viewed by the first writers on it. If recognised early, a large proportion of cases will recover ; even in the most advanced periods, the patient should not be despaired of. I have repeatedly seen recoveries take place, although strabismus, paralysis, convulsions, blindness, un- conscious evacuations, and other unfavourable symptoms, had existed some time. Data fur- nished by the writings of Odier, Cheyne, Mills, Bricheteau, Goelis, and others, show that from a sixth to a third of the cases has recovered. But a perusal of the cases they have adduced, has convinced me, that some of those which recovered, as well as of those that died, belonged to acute or sub-acute encephalitis — little or no effusion having taken place — several of them presenting, on dissection, this as the least important change ; the fluid sometimes amounting only to two or three drachms, — a quantity not nearly sufficient to warrant the designation given to the disease. 252. Although the prognosis should always be given with much caution, and be generally un- favourable ; yet in few circumstances, indeed, ought the anticipation of such a result to para- lyse our treatment. Dr. CiiEVNE justly observes that, whilst the pulse continues steady, and the breathing natural, the most alarming symptoms should not prevent the use of active remedies. I would even go beyond this, and say, that the supervention of hurried breathing is the only symptom that should lead us to despair of the case. We should be cautious not to be misled by the falling in the frequency of the pulse in the second stage ; and not to be induced to give a favourable prognosis from this circumstance. Tlie coming down of the pulse should, therefore, be viewed in connection with the state of the eyes, HEAD — Prognosis — Cal'ses. and of the evacuations, and with the other symp- toms, before any opinion should be formed from It. More copious and more readily procured bilious stools, and their more feculent appear- ance and natural smell, an increased flow of urine, mucous or watery discharges from the nose, and an abundant warm perspiration, are favourable signs. The occurrence of the disease in comparatively sound constitutions, in an in- flammatory form, or after scarlatina, admits of greater hopes of recovery. This opinion is ac- cordant with that of Goelis and Abercrombie, although it is different from that expressed by Dr. Cheyne. The idea of effusion in the head being necessarily fatal, has operated unfavourably in the treatment of the disease. I believe from extensive and attentive observation, that, notwith- standing the uncertainty of the existence of this change, it may be removed, when the powers of the constitution are not sunk too low. 253. When hydrocephalus follows protracted ill health, in scrofulous constitutions, in families where others have died of it, after remitting states of fever, during protracted convalescence, er when it steals on so as not to be recognised until it is far advanced, an unfavourable opinion of the result may be entertained. The breaking out of a vesicular eruption about the lips and face ; total insensibility of the retina ; great rapidity, small- ness, and feebleness of pulse ; dryness of the mouth, lips, and nostrils ; boring of the finger in the ears ; hurried respiration, and partial sweats, particu- larly on the neck and back of the head ; indi- cate approaching dissolution. Even when the treatment is followed by very striking amendment, we have no certainty of the recovery of the pa- tient ; for most of the unfavourable symptoms have been removed ; but, in one or two days, they have recurred, and death ensued. Even when an improvement has become more permanent, we cannot be sure of the result, until the actions of the iris return, and the alvine excretions, and other functions, become natural, — until then^ a cautious opinion of the issue should be given. 254. Causes. — (a) The predisposing causes. — Goelis and several others suppose that the disease is more common now than formerly, owing to the less frequency of eruptions on the heads of child- ren. He also believes, and refers to facts in support of the opinion, that terror and anxiety in the mother during the last months of preg- nancy predispose to it, — the disease often appear- ing in the child soon after birth. The epochs of iiifancii and childhood are, however, the most remarkable predisposing causes. At these periods, the rapid developement of the encephalon, and the great susceptibility of the nervous system, dispose the cerebral circulation to frequent ex- citement ; and in proportion as the cerebro-spinal system acquires a predominancy in capacity and function over other parts, is the predisposition to vascular determination, to inflammatory action, to increased exhalation of serum, and other disorders of the cerebral vessels, augmented. The more fre(|uent occurrence of tlie disease, often in an inflammatory form, in children with precocious intellects and large heads, is a common observ- ation, and is confirmed by the experience of Gahdiex, Hopfengartner, Guehsent, and others. The more usual period of attack is from the first to the eighth year ; its frequency dimin- DROPSY, ACUTE, IN THE HEAD— Pathological Opinions. 669 ishing as we depart from this epoch, down to the period of birth on the one linnd, and up to pu- berty and manhood on the other. I believe, that previous to the tenth year, the disease is most frequent in boys. Dr. Cheyne thinks, with LuDwiG, that, after ten, girls are more subject to it. A scrofulous diathesis is also one of the most remarkable predisposing causes, — sometimes seve- ral children being carried off in a family where it &c.) ; the extension of inflammation from the ear (Itard, Lallemand, &:c.) ; the retrocessioa of acute eruptions, and suppression of chronic evacuations or discharges ; the extension of irri- tation to the membranes or brain, from inflamma- tions of the organs of sense, from the throat, scalp, face, &c., and from erysipelas of those parts ; too copious general depletions in the ex- anthemata and acute diseases, in relation to the exists. Cheyne, Sprengel, and others, consider : form of the malady and strength of the patient ; that hydrocephalus and scrofula are convertible , the too liberal use of narcotics in young children, into each other. That the former sometimes fol- i or their employment too early in several diseases, lows the disappearance of other scrofulous affee- I particularly in hooping cough, spasmodic croup, tion, admits not of doubt; but it rarely happens spasm of the larynx, and flatulent colic; whirl- that the latter is influential in the removal of the former ; indeed, effusion on the brain much more frequently proceeds simultaneously with tuber- cular and other strumous diseases in other parts of the body. 255. Hereditaria disposition has also been viewed as a cause by Quin, Odier, Formey-, P. Frank, Portenschlag, Baader, Goelis, &c. ; some, however, with Cheyne, imputing such dis- position to the scrofulous diathesis. But I have repeatedly remarked the hereditary tendency, without its dependence on scrofula. Goelis, Brachet, Coindet, and Girtanner ascribe this disposition to a peculiar connate irritability of the nervous system ; this, however, does not ad- vance the question much further. The children of parents addicted to drunkenness, particularly if the mother be given to the use of spirituous liquors during suckling, are also, according to my experience, prone to be attacked. In addition to these, may be enumerated a syphilitic taint of the parents CThom) ; frequent congestions in the head, however induced ; the use of too stimu- Jating food and drink in early age ; keeping the liead (00 warm ; the premature and excessive exercise of the senses and of the intellects ; vio- lent mentai emotions, as terror, anxiety, anger, fear ; the exhibition of anodynes to the child by nurses, or in the treatment of other diseases; re- peated falls; injuries during parturition (Stoll, Arantius, Goelis) ; rocking in cradles (Blan- CARD, Anat. Prat. c. i. obs. 18) ; the early and repeated application of cold to the head or other parts (Percival) ; concussions of the body ; too frequent motion and depending positions of the head; whirling round on the toes; the injudi- cious use of emetics ; the continued irritation of worms in the prima via, and of dentition during both the second and first periods ; congestions, inflammations, and enlargements of the liver and spleen ; previous attacks of encephalitis, or of cerebral congestion ; interruptions to the se- cretion and discharge of the bile ; disorders of the stomach and bowels ; enlargement and obstruc- tion of the mesenteric glands ; long continued costiveness ; remittent and exanthematous fevers ; pertussis ; previous diseases imperfectly cured ; and affections much disordering the respiratory functions. Dr. Thompson, of Jamaica, observed it frequently consequent on worms in the dark races. 256. (6) The exciting causes are, cold to the head of young infants; external injuries from falls, blows, &c. ; concussions or agitations of the brain, from jumping, whirling, or depending po- sitions of the head ; the suppression of eruptions on the scalp, and behind the ears (Conradi, Goelis, tossing, or rudely rocking children in order to quiet them, when crying ; from disorders of the digestive oigans, or erethysm or irritation of the encephalon ; insolation ; the early use of fermented liquors ; carrying heavy loads on the head (J. Johnson); allowing children to sit on stones or other cold seats ; and the metastasis of various maladies. Rush, Lettsom, Goelis, and Coindet mention its occurrence from metasta- sis of rheumatism. I have seen this take place in a grown-up person, — the effusion being chiefly between the membranes, — but not in children ; although I have met with metastasis to the heart in many cases of children — in one case now under treatment, which is the second in the same family. (See also Brain, §§ 182, 183-) 257. Pathological Opinions. — Acute hydro- cephalus has been generally classed as a dropsical disease, although its claims to be thus arranged are somewhat equivocal. Its similarity, however, to other acute dropsies, particularly those of the chest, is most striking. Indeed, it seems to hold such a relation to inflammation on the one hand, and to chronic dropsy on the other, as to entitle it to be viewed as an intermediate disease, and as identical in most cases with other acute dropsies ; in some instances approximating more nearly to the one than to the other. Whytt considered it as altogether a dropsical malady ; and Dr. Cul- LEN, in designating it apoplexia hydrocephalica, did not seem to entertain a very different opinion. PiNEL fell into the same'views, after having de- scribed it as a species of cerebral fever ; which was the idea conceiveETHy, Curry, Cheyne, Yeats, Thomson, &c., have considered it as most commonly proceeding from disease in the digestive organs, and seldom arising from primary inflammatory action in the brain or its membranes. This opinion has been carried too far, for I have often had evidence to convince me, that morbid action had been pro- ceeding in the brain long before it was suspected, and that one of its chief effects was to disorder the liver and digestive canal ; this sympathetic disorder being frequently considered as primary, and its reaction on the brain as the sympathetic production of hydrocephalus. I believe that the malady often originates in the substance of the brain ; and that, conformably with what is ob- served in respect of lesions of this structure, the digestive viscera, frequently at one time the most remarkably deranged, are merely sympathetically afiected. Formey- and Dr. Shearman have viewed the effusion as a consequence of simple excitement of the cerebral circulation entirely in- dependent of inflammation. The latter writer has considered it to be contingent on various diseases, and to arise from a diversity of causes ; but that its occurrence is chiefly owing to the predisposition or previous state of the membranes, — the essential character of the disease consisting in tliat previous • state or predisposition vvhich, in connection with an excited state of the circulation, gives rise to increased exhalation or effusion. Dr. C. Smyth lias argued against inflammation, and in favour of debility as tlie cause of the effusion ; but whdst he has strenuously contended for the latter patho- logical condition as respects the tone of the ex- treme vessels, he has admitted the existence of accelerated circulation, and its influence in pro- ducing the disease. There is one inference, liow- ever, in which nearly all modern pathologists agree, viz., tliut the effusion itself does not consti- tute the malady, but is only its consequence, — contributing to tlie production of the more ad- vanced symptoms, but in a less degree than many suppose. •259. Pathological Inferences. — (a) The first or nervous form of acute hydrocephalus is frequently consequent upon changes in the substance of the bram, in the membranes lining the ventricles, and in the vessels and circulation of the encephalon, probably arising from the state of the organic nervous influence supplied to tliis quarter, and to the perversion of the vital actions. (See Disease, ^87 — 92.) — (h) That these changes often com- mence gradually, or almost imperceptibly, and proceed far before they disorder the functions, either of organic or of animal life, in a remarkable degree ; and when such disorder becomes manifest. it is often diflicult to trace the quarter in which it has originated, owing to the intimate dependence of both classes of functions upon the organic ner- vous system. — (c) That the changes observed on dissection in this variety have evidently been in progress a considerable time before effusion has taken place ; the effusion being the consequence of these changes,[assisted by the physical condition of the encephalon. — (d) That nervous, as well as inflammatory and consecutive, hydrocephalus being merely contingent upon lesions of the organic nervous influence of the circulation, and of the substance and membranes of the brain, such le- sions actually constitute the disease during its early periods. — (e)That the nature of the cere- bral affection, and the exact state of vascular ac- tion, in the-e periods, are not manifest ; but if it be at all inflammatory — which admits of dispute — the vascular action possesses more of an as- thenic or ataxic, than of a sthenic, character ; or is attended by a perverted, rather than by a dy- namic, state of vital power; and by imperfect performance of the digestive and assimilating functions. — (f) That, although the frst for?n of the disease be consecutive of changes in the cir- culation, or in the organic nervous influence of the brain, the resulting phenomena may be such as to be mistaken for tlie exciting causes ; the organs of locomotion may be so enfeebled as to occasion falls, which will aggravate the primary affection, and develope a state of sub-inflamma- tion, or of vascular reaction in the encephalon, and its usual consequences, viz. determination of blood, injection of vessels, and effusion of serous fluid ; or the viscera of digestion and sanguifac- tion may become so congested, or otherwise dis- ordered, as to appear the parts primarily affected, — (g) That when this form is coincident with, or consecutive of, congestion, inflammation, or other disorders of the digestive and chylopoietic viscera, effusion into the ventricles cannot be viewed as the earliest changes that take place within the head ; but that this effusion is merely consequent upon similar changes to those which have been already alluded to (d, e) ; the lesions in the diges- tive organs, as well as the earlier alterations in the brain, being, very probably, coetaneous results of pre-existing disorder of the system, or of con- stitutional vice. — ih)ln. whatever quarter dis- order commences, it is probable that, sometimes, at least, the sensorial power becomes exhausted, possibly coetaneously with the supervention of the second stage, and the cerebral tissue itself more or less wasted ; but it is difficult to say whether this wasting be the consequence, or the cause, of the effusion into the ventricles, — pos- sibly the latter. — (i) That, in the early stage of the disease, as well as in its progress, the vascular excitement, or febrile disturbance, attending it, is characterised by general adynamia or perversion of vital power. — (/c) That great cerebral excite- ment does not necessarily imply the existence of inflammatory action in the encephalon ; for acce- lerated circulation in a weakened state of the frame, and susceptible condition of the sensorium and nervous system generally, will produce cere- bral excitement, particularly towards the close of febrile or protracted diseases; but this, in- stead of being inflammation, is a state very dif- ferent from, or sometimes even opposed to, it, as shown by the tudehlia and juvantia, and by DROPSY, ACUTE, IN THE HEAD — Treatment, 671 the 7)osO)W)'((?m appearances. — (I) In the second form, and in many ot'tlie i/nrJ, particularly as oc- curring after the exanthemata, the symptoms, as well as the appearances after death , are more mani- festly inflammatory ; cases varying in grade from such as are described in the article Brain (^ 174.), until the characters of the nervous form of the disease are nearly approached ; the inflammation differing in kind accordingly from sthenic inflam- mation, owing to the diathesis and the state of vital power. — (?)!) That the xcaterstroke or hiiper- acute disease, in every case in which I have observed it, has arisen independently of inflam- mation, although generally consequently upon determination to, or congestion in, the head. — (n) That hydrocephalus, particularly its nervous form, may assume intermediate states or grades between the acute and chronic, which grades may be denominated sub-acute. — (o) That the disease may, in some instances, commence in an acute or sub-acute form, and become chronic, especially in infants whose cranial sutures have not closed. — (p) In some cases, also, the acute or sub- acute may supervene on the chronic state. — (9) That acute dropsy in the ventricles, although most common previously to puberty, may occur at any subsequent period, especially during the decline of life, and in old age. — (;•) That it is, in such circumstances, generally attended by in- flammatory appearances in, or softening adjoin- ing, the surface of the ventricles; but it some- times is unattended by any of these lesions. — (s) That in these cases it often terminates fatally in a short time, with apoplectic or comatose sj'mp- toms; constituting the Serous Apoplexy of authors, which is sometimes consequent upon other forms of dropsy in persons advanced in life ; they being cut off by the effusion into the ventricles, without any other material change within the head, — the coma, or apoplexy, gradually becoming more and more complete until life is extinguished. * 260. Treatment. — Lit. Hist. oj'. — The opinion of Dr. WiiYTT, as to the nature of acute hydro- cephalus, and which was for a time very generally adopted, led to an inefHcient treatment. Dr. Watson, who adduced one of the first successful cases, trusted chiefly to blisters, purgatives, means to lower the attendant fever, and to the powers of the constitution for a cure. Drs. Haygaiith and DoBSON were the first to prescribe mercury in the disease, particularly calomel, — a medicine which had been very largely employed about a century before, but had fallen into disuse ; and which, having proved extremely efficacious in many of the maladies incidental to Europeans in the East Indies, was then finding its way, through means chiefly of Dr. Lysons, Dr. Hamilton, and Dr. Clarke, into the practice of this country. Dr. DoBSON exhibited mercury with the intention of thereby increasing the function of absorption : and Dr. Haygarth, in order to induce sali- vation, with the expectation that, by procuring an aqueous evacuation from the neighbourhood, it * Since the above was sent to press, the fiftli volume of M. Andual's ''' Cliniquc MedicaJc" has appeared. It contains a few cases of idiopatliic and acute effusion of fluid into the ventricles, occurring in adults.both without and with slight inflammatory changes or softenings of the surfaces of these cavities, or parts adjoining. The symptoms, in these cases, were those of waierstroke, or of serous apoplexy. Two cases occurred in persons who were labouring under dropsy of other cavities. might be the means of removing the fluid accu- mulated in the ventricles. Drs. A. Dawson, Sim- mons, and ^\'IIITE placed their chief reliance on blisters and opium, — means which, in the present state of our knowledge, amount merely to useful adjuvants. The views of Drs. Qiin, \\'itheri.\g, and Rush caused a revolution in the treatment of acute hydrocephalus. Dr. Quin, observing in dissection evidences of inflammatory action in the membranes of the brain, advised bloodletting, and cold applications to the head, in the first stage, and mercury afterwards ; Dr. Withering used dii;italis, but his cases were not sufliciently demonstrative of its efficacy ; and Dr. Rush placed confidence chiefly in large bloodlettings and active purgation. 261. Dr. Percival was amongst the first who appears to have been aware of the fact, that, however nearly acute hydrocephalus may approach true inflammation, it is no more iden- tical with it, than the adhesive form of inflamma- tion is the same as the diffused, or as erysipelas. He directed the means which had been previously recommended, according to the circumstances of the case ; and combined the use of blisters, mer- curials, and opiates, with that of squills, musk, and other diuretic and nervine medicines. Con- sistently with these views, he was cautious in the employment of blood-letting. Dr. Paterson prescribed calomel and opium, and a more anti- phlogistic treatment than was risked by Dr. Percival; but Dr. Garnett, although he be- lieved in the infiamraatory nature of the com- plaint, hardly ventured beyond local depletions ; and confided more in digitalis conjoined with mercurials, than in other internal remedies. 262. It is impossible for the experienced reader to have perused the writings on the disease, as far as I have now proceeded, without being for- cibly struck with the circumstance, that great misapprehension prevailed as to the succession and ensemble of morbid phenomena, on which the name acute hydrocephalus has been imposed. This is shown by many of the cases adduced by authors in support of the inflammatory nature of the. disease ; these cases exhibiting the usual re- sults of inflammation only : whilst those who observed the fluid collection unattended by very remarkable inflammatory appearances, limited their idea of this malady to such as these only, and considered them as distinct from those evin- cing changes strictly referrible to inflammation, without any, or with but little effusion ; which latter cases they viewed as constituting true in- flammation of the brain and its membranes, and not falling w-ithin their definition of hydrocepha- lus, however nearly the symptoms of the one resembled (in consecpience of the physical con- dition of the brain) those of the other. The fact is, that the larger number of writers down to the present day applied the term acute hydro- cephalus to a certain succession of phenomena, without regard to the difl^erent pathological states giving rise to it, and the shades of diver- sity by which each may be recognised ; and were either unaware of, or unheeded, the circun- -stance, that an inflammatory state of the brain and its membranes in young subjects may ter- minate without eflTusion, or may give rise to effu- sion to an extent warranting the denomination of hydrocephalus; and that, moreover,, water may 672 DROPSY, ACUTE, IN THE HEAD — Treatment. be collected within the cranium, without any truly or sthenically inflammatory action of the vessels; and, nevertheless, the most experienced observers ofte'n will hardly be able to distinguish, by means of the symptoms, between these classes of cases. 263. The intentions with which the treatment of acute hydrocephalus should be conducted, are resolvable into the following. — 1st. To remove all causes of irritation or morbid action oper- ating either directly or sympathetically on the brain. — 2d. To lower vascular excitement in the head, and equalise the circulation. — 3d. To guard against efTusion, by fulfilling the above objects, by diverting the morbid determination of fluids from the head, and by changing the action of the extreme vessels. — 4th. To restore dis- charges and eruptions, when these have been sup- pressed.— 5th. To alleviate pain and sickness. — And, 6th. To support the powers of life, and to recruit them when they are sinking. It is obvious that the means which will accomplish one of these intentions, will oiten also fulfil one or more of the others. 264. The physician, having considered the origin, pathological states, the constitutional relations, the form, history, and stage of the disease, as well as the means which may have been already employed, should cause the patient to be placed in a well-aired chamber, and to be screened from strong light. The bed or couch should approach a slightly inclined plane, from which he ought to be slowly raised, and on which gently placed, when removal is necessary. All quick motions, or changes of position, as well as excitement of the senses, and irritation of the temper, must be carefully avoided. The tem- perature should be rather cool than warm, and the bedclothes only sufficient to preserve the natural heat. With these preliminaries, the re- medies determined upon should be promptly and faithfully administered. During both the first and second epochs of dentition, the patient's gums and teeth ought to be carefully examined, and the former freely incised, or the latter removed, as often as may be requisite. 265. A, Vascular Depletion. — In estimating the reported success of treatment in this disease, it is very necessary to keep in recollection that often no distinction has been made between it and encephalitis: indeed, many modern writers consider inflammation of the brain and its mem- branes, occurring in children, to be identical with acute hydrocephalus, — or, in other words, that this latter is the same as the phrenitis of adults. IS'ow this sophism, so general atxl injurious in medicine — this affirming as true of the genus, what is tiue merely of tlie species — has had a most baneful influence on the treatment of this disease, inasmuch as it has led practitioners greatly to over-estimate the advantages of sanguineous depletions ; a large proportion of their cases of imputed acute hydrocephalus being acute and sthenic meningitis or encephalitis, in which this evacuation may be carried much further than in the former malady ; and has induced them to re- commend, and others to employ, the practice with too little reservation. This circumstance is espe- cially manifest upon perusal of the histories and treatment delineated by Rush, iVTAXWFi.r., and several others, who have carried bloodletting as fur as it is admissible in sthenic inflammation of the membranes. Having perused these authorities, after the experience derived from the treatment of very many hundred cases of cerebral diseases in children, I am convinced that the larger proportion of those which they considered hydrocephalus, was neither that malady, nor would have given rise to efl^usion in such quantity as to have justified the designation : the details they have furnished are decisive of the fact in the mind of the competent judge. Therefore, let not the inexperienced practitioner be led astray by the circumstance of its having been recorded by authors, thatarteriotomy, large bloodlettings, &c., cured half the cases in their practice ; I am con- vinced that the majority of such cases were sim- ple encephalitis, or inflammation of the mem- branes of the base of the encephalon. Dr. JNIax- WELL avers that he cured sixty cases out of ninety — two thirds — by bleeding them in the horizontal posture until insensibility — occasionally for some hours — afterwards ensued. Would the most heroic practitioner of the present day attempt such practice in an undoubted case of acute hydro- cephalus I I believe not. 266. (a) In the more inflammatory states- of the disease, and especially in the Jirst st-age (§ 234.), the same means, as are fully described in the treatment of inflammations of the Brain and its membranes (§ 191. et seq.), should be employed ; and to an extent which the pulse, the febrile excitement, and previous health and strength of the patient, will point outi These means consist of general or local bleeding, active purging, the application of cold to the head, derivatives and counter-irritants, mercury, seda- tives, and diuretics, &c. In the inflammatory form, as it occurs either primarily or consecu- tively, these remedies may be prescribed very nearly in the manner explained in the article re- ferred to. When the disease supervenes sud^- denly on any of the exanthemata, as decided depletory measures, as are advised for encephali- tis thus occurring, must be purs-ned. (SeeBnAI^F, § 191.) In children under three or four years of age, leeches, or cupping behind the ears, on the occiput, or on the nape of the neck, will be pre- ferable to venaesection ; but, after this age, the latter method may be practised in the first stage of the disease. I have observed no greater advan- tages obtained by bleeding from the jugular, than by bleeding from the arm. Many Continental phy- sicians consider depletion more derivative when it is practised in the feet, and numerous facts favour the inference. In the second stage, local deple- tions, if they have not been already employed, or carried sufficiently far, and if circumstances indicating tlie propriety of the practice exist, may still be resorted to ; but with strict reference to the pulsation of the carotids, the pain and tem- perature of the head, to the warmth of the extre- mities, and to the state of vital power. I have often derived advantage from repeated local bleedings even in this stage, aided by the other remedies enumerated, when employed in the manner about to be described. 267. (h) In the first form, as well as in such of the third as partake chiefly of the same charac- ter, vascular depletion must be employeil with greater caution, and as early as possible in the first stage. I have seen hardly any benefit from it when the second period of this variety had com- DROPSY, ACUTE, IN THE HEAD — Tueatment. tnenced. When the disease has been detected sufficiently early, and when it has followed pre- vious attacks of congestion or inflammatory action in the head, the febrile excitement being neither general, continued, nor well marked, the applica- tion of blisters behind the ears, and of leeches around, or close to, the blisters, has been of much service. But it will be requisite to repeat this practice every second or third day, or oftener, and to carry it as far as the circumstances of the case may warrant. If the cerebral affection appear to have been induced by disease of the digestive and chylopoietic viscera, a blister should be placed on the epigastrium or right hypochon- drium, and leeches applied around it, as soon as redness is caused by it ; when it ought to be re- moved. This method may be repeated, according to circumstances, after intervals of one, two, or three days ; it possesses great advantages in this state of the disease, inasmuch as, whilst it relieves the gastric symptoms and the affection of the liver, it is a most energetic derivative from the head, without reducing vital power so far as ge- neral depletion does ; for general bleeding, how- ever early employed in this variety, is seldom productive of much benefit. Indeed, I have seen it detrimental in many instances ; and I consider both it, and local depletion, if carried to any considerable extent, as decidedly injurious in some states of this form, particularly in weak and cachectic children. 268. jB. Cathartics. — The discharge of morbid secretions and faecal collections should be pro- cured as early as possible by remedies calculated, at the same time, to derive from the brain, and to diminish vascular plethora and excitement. The fulfilment of this intention is appropriate to all the slates of the disease. A large dose of calomel, either alone or with James's powder, ought to be immediately exhibited, and, after three hours, repeated with the addition of toasted jalap, or scammony ; and its operation should be promoted by an active terebinthinate enema. If the irritability of stomach be such as to prevent the retention of medicine taken by the mouth, vascular depletion, a blister or mustard cataplasm on the epigastrium, and an active cathartic ene- ma, will often remove it. Calomel, in full doses, will generally be retained, under any circum- stances ; but, in conjunction with cathartics, it is frequently ejected, unless after the measures now stated. Elaterivm, in small and repeated doses, has been suggested by Dr. Ei,liotson ; but it, as well as croton oil, will seldom be kept on the stomach. When retained, they are occasionally of use. I have seen most advantage derived from the latter, when it has been added to the terebinthinate enema, or applied over the abdo- men as a rubefacient. Dr. Cheyne found a drachm or two of magnesia saturated with lemon juice, given every two or three hours, most use- ful in such circumstances ; and I believe that this will act more certainly than irritating purg- atives, particularly if a full dose of calomel have been taken a few hours previously. A gruel or broth enema containing some purgative salt may also be administered two or three times in the course of the day ; and if the bowels be very torpid, and the sopor considerable, the terebinthi- nate enema should be repeated daily, or even oftener. Saline purgatives may also be given in Vol. I. .673 the infusion of senna, when they can be retained. Active catharsis at the commencement of the disease, after vascular depletion has been instituted to an extent which the nature of the case demands, will have a more decided effect than any other means whatever. 269. C. Cold applications to the head, the hair having been removed from it, should be em- ployed in the manner, and with the precautions, directed in the article Brain, § 192., whenever the temperature of the head will admit of them. But, like the measures already advised, it is only early in the disease, and in the inflammatory states more especially, that they are productive of much benefit. In these states they may be used simultaneously with the tepid semicupium or pediluvia, salt and mustard having been added to the water. Rush, Quin, Conuadi, Formey, GoELis, and nearly all the writers on tiie disease, are favourable to cold applications in its treat- ment ; and, in some form or other, they are ap- propriate to most of its states. 270. D. Mercurials. — These are, perhaps, the next important means that can be employed. They have been very generally prescribed since they were first adopted by Dobson and Hay- garth, and subsequently by Eason, ]Mackie, Reeve, Lettsom, Hooper, Hopfencahtner, Ferriah, and more recent writers. Early in the Jirst stage of the disease, calomel, given every three or four hours, in full doses, either alone or with James's powder, in small quantities, is, in ordinary circumstances, the best preparation. In children under one or two years, neither sali- vation, nor much intestinal disorder, will be pro- duced by it. In those above three or four years, its specific action may be obtained, but with little certainty, even although it be conjoined with opium or the compound ipecacuanha powder. When no essential benefit has accrued from the foregoing means, and the bowels have been fully purged as directed above (§ 263.), then calomel may be given with digitalis and narcotics, or with the latter only, particularly opium or hyoscya- mus, with the view of fulfilling the third and Jifth intentions of cure (^ 263.). But in young children, especially when the bowels are griped, or are irritable, the hydrarg. cum creta, with small doses of compound ipecacuanha powder (F. 653.), will be most serviceable. The bowels, however, should always be kept sufficiently free by either of the enemata recommended (§268.). I may add, that calomel has been prescribed with eantharides, by DoBSGN ; with James's powder, by Camp- bell ; with opium, by Leib and others; with digitalis, after local depletions, by Weaver, GoELis, and Fischer ; with digitalis and arnica, by J. P. Frank ; and with active purgatives (in which form I believe that it is most generally beneficial), by Hufeland, Chetne, Abercrosi- bie, and many others. Dr. JNlERHrMAr* and my- self have given very small doses of the bichloride of mercury, every four or five hours, with ad- vantage. In the second stage, this is one of the best preparations that can be prescribed ; but it requires much caution ; and, in this period of the Jirst and third forms of the disease, it shonld be prescribed in tonic and diuretic infusions. The utmost care should be taken in exhibiting mercu- rials in these forms, particularly io cachectic subjects, and where the powers of life are much X X 674 DROPSY, ACUTE, IN THE HEAD — Treatment. reduced. The state of the gums, mouth, and tongue, should be always carefully observed during their use ; for I have seen fatal sloughing of these parts follow from them in such cases. The external employment of mercurials has also been recommended by Campbell and others. The ointment may be rubbed into the scalp, or between the shoulders, in the more urgent cases ; but I have seldom seen advantage derived from tliis method. Mercurial ointment may also be employed in dressing blistered surfaces ; or the liniment may be applied to them on warm bread and water poultices. This plan has sometimes been productive of benefit, particularly in children of two or three years of age or upwards. 271. £. Derivatives and Counter-irritants are often serviceable, especially in the second stage. They are also admissible in the Jirst stage of the first and third forms, when there is little febrile heat, or when the lower extremities are cold or cool. Blisters have been very generally preferred by JMoNDscHiEN, Rush, Odier, Percival, Cheyne, HopFENGARTNER, GoELis, &c. Much difference of opinion, however, exists as to the places to which they should be applied. They may be placed between the shoulders, on the thighs or legs, on the epigastrium, and on the neck and occiput, and behind the ears, in the earlier stages of the disease ; and in infants they should be re- moved as soon as they produce redness. In the Jirst stage they ought to be preceded or ac- companied by depletions (§266,267.); and in older children they may be kept discharging for several days, or be repeated. Some writers, and especially Portenschlag, White, Hop- FENGARTNER, SiMMONDS, GaRDIEN, and El- LiOTSON, have advised them to be placed upon the head or occiput; but I have never seen be- nefit derived from them in the former of these situations, unless in cases where the disease has followed the suppression of tinea capitis, or in the second or third stages, when the sopor has been great; and then the blister may be large, and the part over the occiput kept discharging for some time subsequently. In infants, sina- pisms to the epigastrium, or lower extremities, are often preferable to blisters in these situations. The tepid or warm semicupium and pediluvia, salt and mustard having been put into the water, are often of use in the second stage, or in the first, when the extremities are cool ; but when there are general febrile excitement, and much heat in the head, they are seldom of service, unless in a tepid state, and in conjunction with cold applications to the head after evacuations liave been directed. The warm bath is less ser- viceable than the semicupium, and is as often detrimental as beneficial in the early periods of the more inflammatory states of the disease. The vapour hath has been proposed by Dr. A. Hunter. M. Itard advises it to be impregnated with vine- gar. This practice is admissible chiefly in the second stage. Setmis and issiies are too slow in their effects for this disease ; and the same may be said of the tartariscd antimonial ointment. But I have seen benefit result from producing erubescence by croton oil. In the latter stages, nrtication may be practised. Moxas I'.ave been applied to the occiput and behind the ears, by M. KiitiNAui.T. Dr. AIerriman has had recourse, in several instances, to the tinclura lyttx ia doses of from five to ten minims, given every four hours, until severe strangury was caused by it ; and in three of these cases the disease was arrested. It may act beneficially, not merely as a derivative, but as an excitant of nervous power. 272. F. Sedatives and Narcotics. — (a) Digi- talis has been much employed in this disease since it was first recommended by Withering. Brown, White, Cheyne, and others, have men- tioned it favourably. Any of its preparations may be used. Gardien prefers the stherial tincture, which he directs both internally, anl externally in liniments. Goelis and Merriman prescribe half a grain of the powder with a grain of calomel every four or six hours ; and Wendel- STATT, any of its formulae with opium. Kleber advises that it should be rubbed in over the scalp, with the vinum scilla;. It may be given in both the Jirst and secqtid stages ; — in the former as a sedative of vascular excitement ; in the latter, to modify the state of the capillary circulation, and prevent effusion. Much discrimination, how- ever, is necessary in distinguishing the effects of this medicine from the symptoms of the second stage — particularly the vomiting, slowness of the pulse, and dimness of sight. Dr. Cheyne points out certain differences between them ; but they cannot be relied on. The sopor and stra- bismus, however, of this stage will generally dis- tinguish it from the depression produced by digitalis. When this substance is prescribed in the first stage, it should be given at once in a full dose, and be repeated every four or five hours. In the second stage it may be conjoined with squills, the spiritus aetheris nitrici, or with ser- pentaria, or the decoction of the flowers of arnica, as advised by several German physicians. Col- chicum has also been employed in this disease, within the last few years, with the same inten- tions as digitalis. I am unable to speak of its eflfects, as 1 have considered it less appropriate than this and some other remedies. It may, however, be prescribed in the same stages as digitalis. Little benefit can be hoped from it, especially in the second period, unless it act upon the kidneys or bowels. 273. (6) Opium. — Percival, Odier, Cramp- TON, Brooke, and many of the writers already referred to, recommend this substance in the second and third stages, particularly when the pain in the head, the convulsions, and irritability of the stomach and bowels, are very prominent symptoms. In the earlier part of the second stage it may be given with calomel, James's powder, or antimony. When the bowels are very irritable, without sickness at stomach, it is preferable in the form of Dover's powder, with hydrarg. cum creta ; and, when the general irri- tability is great, or the convulsions violent or frequent, with full doses of digitalis. Later in the disease, I have seen benefit from it in small doses given in the terebinthinale enema directed above, or with serpentaria, or diuretics, Ilyoscy- amus may be employed with the same intentions, and in similar states of combination, as opium ; but I doubt its being equally efficacious. 274. G. Antimonials. — The potassio-tartrate of antimony, in large doses, — in from five to twenty grains in the twenty-four hours, — has been ad- vised by the followers of the new Italian doctrine, and employed successfully by M. Laennec in a DROPSY, ACUTE, IN THE HEAD — Treatment. 675 few instances. Although long in the habit of having recourse to this practice in pulmonary and some other diseases, 1 have had no experience of it in acute hydrocephalus. Small doses of James's powder with calomel, or with calomel and active cathartics, or with calomel and opium, as prescribed by Dr. Cheyne, appear the most judicious mode of directing this mineral. I have seen, however, benefit follow moderate doses of the potassio-tartrate of antimony, either with or ■without opium, as recommended by Dr. SIills, in the first stage of the disease, when vascular ac- tion and febrile excitement were great. 275. H. Diuretics, S^c. can be but little con- hded in ; yet I have believed them to have been of much service in the second and third stages of some cases. The most energetic is certainly tlie spiritus terebinthinae, in the form of enema, or of liniment rubbed on the scalp. Squills, digitalis, spiritus Etheris nitrici, spiritus juniperi, or hydro-chloric aether, — formerly Glutton's febrifuge spirit, — may be used, in these periods, with small doses of opium, or with a weak infusion of serpentaria, or decoction of the flowers of arnica. Ei.AjANi and Kleber prefer squills to other diu- retics ; and I believe that they are not altogether without efficacy. 276. I. Palliatives and Restoratives. — The pain in the head and vomiting are to be relieved by the local depletions, — behind the ears and from the epigastrium, — and blisters in these situ- ations ; by the cold afi'usion on the head ; by calomel with opium, and by the terebinthinate enema ; or a warm terebinthinate epithem or sinapism placed over the stomach, till redness is produced. Convulsions, in the earlier periods, will be abridged by the cold afl'usion, and most cer- tainly by the enema just recommended. A to- bacco enema ought not to be hazarded. The oxide of zinc, or musk with ammonia, or with small doses of opium may also be employed to relieve this symptom in the latter stages. I be- lieve that practitioners in this country* have been too often deterred from the use of restoratives in the advanced periods, particularly of the nervous form of the disease. I have, in several instances, seen benefit follow the cautious exhibition of them along with diuretics and enemata with assafoetida. The preparations of ammonia with tincture of squills ; or camphor mixture with magnesia, the tincture of valerian, and syrup of roses ; or the weak infusions of arnica or of serpentaria, with liquor ammoniaa acetatis, digitalis and syrup of squills ; or a weak infusion of green tea, either alone or with digitalis, and spiritus aetheris nitrici ; and either of these, with a drop or two of laudanum, in small doses at short intervals, are the medicines I have most frequently had recourse to in the latter stages; allowing the patient beef tea, warm jellies. * The following is an abstract, made in my note book many years since, of the practice of the most able German physicians in this disease. In the nervous or typhoid variety, co\A applications to the head, sinapisms to the arms and legs, and purgative clysters. If these fail, digitalis, with the decoction of flores arnicae or infusion of serpentaria ; blisters from the occiput to between the shoulders to be kept open, the inunction of mercury three or four times a day ; and, if the vomiting persist, sina- pisms on the epigastrium. Subsequently musk and am- monia, chiefly on account of the convulsions. In t/ie inflammatory form, and in that consequent on the exan- themata, local bleedings, digitalis, calomel and jalap, and, in the latter stages of these forms, the treatment directed for the nervous or typhoid variety. &c. in addition. In several cases approaching the sub-acute form of the disease, I have prescribed a solution of the iodide of potassium indistilled water, with or without a little iodine added to the solu- tion, in small but frequent doses, and with evi- dent advantage. In a few cases, the compound infusion of roses, or a weak infusion of cinchona, or of valerian, have been given with some aro- matic water, and with squills or spirits of nitric a?ther. 277. Treatment of the hyper-acute Hydro- cephalus.— But little can be done in this form of disease, owing to the circumstances under which it usually occurs, and to its severity as well as rapidity. In cases consequent upon exhaus- tion, the sopor or coma being profound, a blister on the head, the terebinthinate enema, and the treatment advised for the advanced stages of the acute hydrocephalus, are most likely to be useful. When it appears with less evident signs of ex- haustion, leeches to the occiput or behind the ears, or cupping between the shoulders ; active de- rivatives ; a cold terebinthinate epithem applied around the head, and a blister on the epigastrium, with such internal medicines as the circumstances of the case require, conformably with what has been above stated ; seem to be the most active and appropriate measures. The bowels should be energetically acted on, by medicines given by the mouth and exhibited in enemafa whenever the malady has not been consequent upon diar- rhoea. When it supervenes during, or soon after, the eruption of any of the exanthemata, particularly scarlet fever, it is more or less inflam- matory, and requires very decided treatment. Bleeding from behind the ears, or nape of the neck, should be carried as far as an attentive observation of its effects will indicate, par- ticularly in children that have been well fed ; and the rest of the remedies now advised, and especially the active enemata already directed, should be promptly, or even simultaneously, em- ployed. 278. In the sub-acute form of hydrocephalus, a similar treatment to that which has been re- commended for the acute, should be adopted early in the disease ; vascular depletions being then practised, according to the circumstances of the case : and when it seems disposed to pass into a more chronic state, small doses of iodine, or of any of its preparations, should be given during the day. A few grains of hydrargyrum cum creta, with digitalis, may be also taken at bed-time, and blisters be applied behind th« ears, and kept dis- charging for some time. The bowels ought to be freely opened by the means already advised, espe- cially the terebinthinate enema ; and, in the latter stages, the same measures as have been directed for these stages in the more acute states of the malady should be prescribed". If the disease as- sume a chronic form, the treatment about to be recommended (^297.) will then be necessary ; but I have seldom seen benefitdetived from any mode of treatment in such eases, probably owing to tlie disorganisation that has taken place in the brain. 279. Diet, ETC. — During the early periods of the disease, cooling diluents only, given fre- quently and I in small quantities at a time, are required ; but in the latter stages, particularly when the emaciation and debility are consider- Xx 2 676 DROPSY, CHRONIC, IN THE HEAD — Causes. able, suitable nourishment is necessary. If the child be still at the breast, the milk of the mother, or of a healthy nurse, in moderation; or asses' milk, beef tea, jellies, and the various farinaceous articles of food suitably prepared, are generally the most appropriate. During convalescence, the same kind of nourishment must be adopted for some time, but in more liberal quanlities ; and animal food should, at first, be cautiously and sparingly employed. Gentle tonics may also be exhibited, as a weak infusion of cinchona, or the compound infusion of roses. German writers prefer a weak infusion of valerian ; and my ex- perience leads me to concur with them. Either it or the infusion of cinchona, may be given with magnesia, wliich will render it less unpleasant, and gently aperient ; and, if the urine be not suf- ficiently copious, a little tincture of squills, or compound tincture of colchicum may be added; or the compound infusion of roses may be taken with a neutral salt. In the latter stages of the disease,"or during early convalescence, if the secre- tions and excretions be morbidly increased, suit- able nourishment, as well as restorative medicines, should be administered more liberally than in other circumstances ; but, in every instance, the influence of the diet and of the remedies, upon the pulse, the temperature of the head, and the general surface, ought to be carefully watched. Change of air to a warm and dry situation, or, in summer, to the sea-side, will have a very beneficial effect, and should be adopted as early in convalescence as possible. 280. Prophyi-actic Treatment. — We are frequently consulted in the cases of children who are drooping in health, or who evince incipient symptoms of cerebral disorder ; and even re- specting those who have no manifest ailment ; but for whom, owing to the circumstance of one or several of the children of the family having had the disease, measures of prevention become abso- lutely requisite. The best of these are, — 1st, the increasing of the abdominal and cutaneous secre- cretions and excretions — 2d, the establishing an artificial irritation and discharge ; — 3d, strict attention to diet and regimen ; — and, 4th, change of air. — (a) The evacuations should be carefully examined ; and, when the bowels are sluggish, or the bile deficient, hydrarg. cum creta, or calomel, with rhubarb or jalap, should be given at bed- time, in gentle doses. James's powder should also be prescribed, whenever the skin becomes dry, either alone, or with small doses of calomel. — (ft) Issues, moxas, or repeated blisters, may be employed with the second object. Blistering behind tlie ear, the discharge being kept up for a considerable time, is very beneficial. Issues, either in the usual way, or by means of the inner bark of the mezcreon, or scraped horseradish, will also be very eflScacious. Dr. Cheyne refers to llie circumstance often children in one family having died of the dise;ise; the eleventh, for whom this means was employed, having been preserved. I'he nape of the neck, the occiput, or the upper arm, are tlie most suitable situations for issue-. — (c) Moderate diet, and that chiefly farinaceous, of a bland (juality, and easy of digestion, is extremely reu(rm, ^'. {j XV. and d xvii. — CtUsus, l)e Medicina, 1. iv. cap. '■2 — Actius, I. iv. cap. i. p. !I9. — Tulpius, Observ. Med. 1. i. obK. 2.5 Fab. HiUaniis, cent. iii. obs. 17— 1!> — Furesti/s, (;l>'nann, De Hydr. Cerebri. Goet. 1792 — Fla- jnra/, Osservazioni Pratiche sopra I'ldrocefalo, &c. Rom. 1791. — Hartmann, De Hydrocephalo. Stuttg. 1794. — Meckel, De Hydrocep. Interno. Hal. 1793 Rush, Med. Inquiries, vol. ii. No. 5. and 15. — Leib, in Trans, of Phil. Soc. of Philad. vol. i. part i. No. 2. — Cavallini, Collezioaii, &c. t. ii. — Bliimenbach, Biblioth. vol. iii. p. (US Buck- holz, in Baldinger's N. Mag. b. i. p. 481., b. il. p. 130. ; Ibid. b. viii. p. ISO. — Conradi, in Hufeland's Journ. der Pract. Arzneyk. b. vi. p. 453., b. vii. st. 2. — Fischer, in Ibid. b. i. p. 280. — A. Monro, Three Treatises on the Brain, the Eyes, and the Ear. Edin. 1797. — Thomann, Ann. Wurceburg. &c. vol. ii. p. 64. 92. 104. — J. P. Frank, Acta Instit. Clin. Viln. ii. p. 451., iii. p. 44. ; etCur. Horn. Morb. vol. vi. p. 161. 183. 197. — Duncan, in Edin. Med. Comment, vol. ii. — S. F. Simmons, in Ibid. vol. v. p. 415 Percival, in Ibid. vol. v. p. 174 Dobson, in Ibid. vol. vi. p. 219. — II. B. Remmett, in Ibid. p. 423. — Mackle, in Ibid. vol. vii. p. 21. — Willan, in Ibid. vol. vii. p. 330 A. Hunter, in Ibid. vol. viii. p.' U)6.— Easun, in Ibid, vol. viii. p. 325.— r. Aerff, in Ibid. p. 332.— A. Campbell, in Ibid. vol. ix. p. 240 Evans, in Ibid. vol. x. p. 299 Dixon, in Ibid. p. 312. — IV. L. Perkins, in Ibid. vol. xi. p. 298. ; Cases of, vol. xiv. p. 401., vol. xix. p. 173. — Paterson, On .Acute Hydroceph. 8vo. Dubl. 1794. — Ackermann et Fischer, Klinischen Annalen von Jena, St. i. p. 1,')2. — haiioix, Mem. de la Soc. Med. d'Emulation, t. i. p. 13. — Wichmann, Ideen zur Diagnostik, th. iii. p. 48—117. — Baillie, .Series of Engravings, &c. fasc. x, pi. 3. — P. F. Hupfcngdrtner, Untersuchungeii fiber die Natur und Behaiidlung der Verschiedenen Arten der Gehirn- wasscrsucht. Stutt. 1802. — Hujeland, Bemerkung. iiber Blattern, &c. p. 476. et seq. — Kreysig, De Hydrocephali Inflammatorii Pathol. Viteb. 1800.— fV. Rowlii/, Traat. of the Dropsy of the Merab. of the Brain, and Watery Head of Children. Lond. 1801, 8vo. — Weaver, in Med. and Phys. Journ; vol. xv. p. .'i32. — Horsch, Annalen, h. i. p. 210. — Bard, in Journ. Gin. de Mi^d. t. xxxii. p. 2!). — Bouvier, in Ibid. t. xxx. p. 377 — CoUinet, in Ibid. t. xxxi. p. 157. — Jadelot, in Journ, de Med. Chirurg. et Phann, Paris, 1806 Spry, Med. and Phys. Journ. vol. ii. p, 131. — Cluilerbuck, in Ibid. voL ii. p. 154. — C. Brutun, in Ibid, vol. ii. p. 258. 321.— Ford, in Ibid. p. 261.— IV. Uhite, in Ibid.Jvol, iii. p. 113. 325. 3.58 Shaiv, in Ibid. vol. iii. p.517. — Schmidt, in Ibid. vol. vi. p. 6 J. B. Davis, in Ibid. vol. viii. p. 98 Garnett, in Ibid. vol. v. p. 121. — Bartlett, in Ibid. vol. xi. p. 401. — Patterson, in Ibid. vol. xv. p. 119. — Coxe, in Ibid. vol. xviii. p. 213. — Futhergill, in Ibid, vol. xviii. p. 481. — Inquirer, \n Edin. Med and Surg. Journ. vol. ii. p. 5'2. 409 G. G. Kuhn, in Ibid. vol. iii. p. 13 Clarke, in Ibid. vol. v. p. 264., vol. vi. p. 282., vol. xii.]).!'."*. — Male, in Ibid. vol. ix.p.398 Bateman, in Ibid. vol. xii. p. 119. — Salter, in Ibid. vol. xvi. p. 393. — Dickson, in Ibid. vol. xvi. p. 412 — Trail, in Ibid. vol. xvii. p. 237. — {Analysis of fluid removed by tapping in clir. hydr.) — I.ixars, in Ibid. vol. xvii. p. 243, 471. (On puncture in chr. hydroceph.) — Hood, in Ibid. vol. xvii. p. 510. — Thom/json, in Ibid. vol. xviii. p. 46. — Afzclius, Hydr. Ventriculorum Cerebri Hist, Morbi et Sectionibus Ca- davrrum illustratus. Ups. 1804. — ■/. et C. IVenxel, Be- iiurkungon fiber die Hirnwassersucht,4to. 1806. — Lange, 1).- Hydr. Ventr. Cerebri. Erf. ISOl. — Portenschlag. I.cdi-ri'iai/cr, Ucber den Wasserkopf. VVien. 1812. — H'endclstatt, in Stark's N. Archiv. fiir die Geburtshiilfe, b. ii. p. 711. — Autenrielh, Observ. de Hydroceph. Acuto. Tub, 1811, — Formry, Von der Wassersueht der Gehirii- hfihlen. Berlin, 1810. ; et in Horn's Archiv., March, 1810. — //cc/kt, Mag. ffirdie Path. Anat. u. Phys. h. i. — Hcinccken, in HuJ'elandu. Himly's Journ. d. Pr. Ileilk. DRUNKENNESS." 685 Wars, 1811, p. 23.; Ibid. 1812, p. Zo.— Schajffer, in Ibid. Sept. 1811. — Mtchae/is, \n Ibid. Feb. ISV2. — Thomson, in Lond. Med. Repos. vol. i. p. Ifi. — Cloquet, in Ibid, vol. ix. p. 410 — J. Cheyne, Essays on Hydrocep. Acutus, &c. i'd ed. 8vo. Lond. 1819. — J. F. Coindet, Mem. sur rilydreneeph. ou Cephalite interne Hydrencfephalique, 8vo. Gen. 1818. — Cooke, in Trans, of Med.-Chirurg. Soc. vol. ii. p, 17. — Baron, in Ibid. vol. viii. — Vase, in Ibid. vol. ix. p. 354. (Paracentesis.) — J. C. Smith, On Hydrenceph or Dropsy of the Brain, 8vo. Lond. 1814. —Kasori, in Giornale della Soc. Med.-Chirurg. di Parma, vol. ii. No. 4 L. A. Goelis, Ueber d. Vorziiglichsten Krankht. d. Kindl. Alters. 8vo. 182U— 1824. Wien. ; also on Hydr. Acutus, or Inflammatory Water on the Head, translated by A". Gooc/i, 8vo. Lond. 1821.— G. X). Yeats, Of the early Symptoms that lead to Water on the Brain, 2d ed. 8vo. Lond. 1823.— J. Cou/ce, Treatise on Nervous Diseases, &c. vol. i. p. 319. — Hnfc/and, in Nouv. Journ. ositions de Pathologie, &c. 8vo. Paris, 1829, t. i. p. 297. — R. Bright, Ohserv. connected with Dis. of the Duodenum and Pancreas, &c., in Trans, of Med. and Chirurg. Soc. vol. xviii. p. 1. — E. A. Lloyd, in Ibid, p. 57 T. J. Todd, in Cyclop, of Pract. Med. vol. i. DYSENTERY. Syn. — At/s-evTEpia, Gr, Dysenteria (from S^uj, difficulty, and hrepov, an intestine). Difficultas hitestinorum ; Tor- mina, Celsus. liheumatismus intestinorum cum Ulcere, Caelius Aurelianus. Flu.rus Cruentus cum Tenesmo ; Fluius Dysentericus ; Flumen Vysentericum ; Tenesmus, Auct. Var. IJyssenterie, Flux de Sang, Fr. Die liuhr, Germ. Dissenterie, Ital. Bloody Flur. Classif. — 1 Class, 5 Order (Cullen), 694 DYSENTERV — Forms of. entertained, also, by Alexander TnALLiANns, Paulus jEgineta, and Actuarius. An atten- tive consideration of the various manifestations of the disease, especially in an epidemic form, will show that these opinions are not without founda- tion. How far they are consistent with the results of modern researches, will appear in the sequel. 5. B. Thii forms of dysentery are extremely di- versified : — (a) As respects its Origin, it is — a primary; 0. consecutive ; and y. symptomatic. — (b) In regard of the Circumstances under which it occurs, it is — a. sporadic; B. endemic ; y. epide- mic; and, J. both endemic and epidemic, in the same locality, on certain occasions.— (c) As to its Type, it is — a.. remittent ; and, B. continued ; most commonly the latter, especially in temperate cli- mates.— (d) As regards its Character, it is — a. injlammatory ; B- bilioxis-injiammatory ; y. simply asthenic ; ^. bilious-asthenic ; t. adynamic or tiiphoid ; !^. malignant or putrid; n. scorbutic; and, &. complicated. — (e) As to Intensity and Duration, it is — a. hyperacute ; $. acute ; y. sub- acute; and, ^. chronic. These modifications, or varieties of character and i)itensity, are, however, merely arbitrary distinctions, founded on the more prominent symptoms of the malady, and adopted chiefly in order to guide us in the appro- priation of remedial measures. Indeed, it should not be overlooked in this, more than in other dis- eases which possess very specific and distinct features in a majority of cases, that it will fre- quently assume forms intermediate between cho- lera on the one hand, and diarrhoea on the other ; between /(?iifr with enteric characters, and colic or simple tenesmus ; that it may be but very slightly different from some one of these complaints; and that, in one or other of its forms, it may be conse- cutive of, or lapse into, any one of the maladies now named. This connection between disorders of parts intimately associated in function and struc- ture, is merely what may be expected a priori, conformably with the pathological principles de- veloped in the article Disease. The diversified forms and close relation of dysentery to other maladies are readily explained on these principles ; especially if considered in connection with the nature of'the diflTerent causes in which it originates ; with the condition of the vital actions, the circu- lating fluid, and thesecretionsand excretions, at the time when its causes make their first impression ; with the changes which concurrent causes induce from the commencement, and with the circum- stances modifying the state of the circulating and secreted fluids in the progress of morbid action. 6. In describing the varieties or states of the disease, it is of the utmost importance — consider- ing its great prevalence and fatality in certain cir- cumstances, on many occasions — not to multiply distinctions beyond such as are well ascertained and are practically important ; not to neglect to notice such as have been accurately described — as are contingent on certain combinations of causes of occasional, but not of common oc- currence; and, although neglected or over- looked, from an injurious spirit of simplifying or generalising, as nevertheless exist, and may be manifested in a prominent manner whenever the causes in which they originate prevail. 'J aking my own experience merely as a guide since 1812, when 1 first treated the disease — an I subsecjucntly observed it in the tracks of the great armies which traversed Europe at the close of the Continental war — and as I was brought in constant intercourse with it for a time, in the most sickly climate within the tropics, in both European and native constitutions — independ- ently of the graphic delineations of it in many of the works referred to, I consider dysentery neither so simple in its nature, nor so unvarying in its seat and forms, as some recent and con- temporary writers in this country have stated. That writer will but imperfectly perform his duty who, in giving a history of a most prevalent and dangerous malady, confines himself to the parti- cular form it has assumed during a few seasons, within the single locality or the small circle of which he is the centre, and argues that it is always as he has observed it ; thereby affirming as true of the genus, what may be hardly true of the species, and even of it only under certain circumstances. 7. The different forms of dysentery are so en- tirely dependent upon certain states of the organic or vital actions, and of the secreted and circulat- ing fluids, that these constitute the true basis of all distinctions between them, and of all rational indications of cure. These states, which are so important, are so difficult to ascertain and estimate truly, even by the most profound and experienced observers, and are so continually varying, that attempts to describe them must be received as ap- proximations only to some of those which will fre- quently present themselves in practice : for the one will so insensibly pass into the other, both in different persons, and even in the same person at different stages, when certain agents are in opera- tion, that the forms of the disease are not to be viewed as constant, but as changing according to ciicumstances, so as frequently to assume cha- racters intermediate between those which are described. Although the features of the disease are so numerous and so changeable — as may, indeed, be expected from the operation of numer- ous agents in ever-varying states of combination upon the economy — yet the necessity of deline- ating certain of them which are the most promi- nent and the most common, as guides for the inex- perienced, must be apparent. In our inquiries into the nature of, and the means of removing, morbid actions, the conditions of life are the chief subjects of interest ; for these conditions constitute not only the chief changes, but also the sources, whence those which are organic spring. They are, moreover, the most directly and energetically impressed by remedial agents, and are the chief media by which structual lesions are removed. I shall, therefore, describe the forms of this ma- lady, conformably with these views. It was evi- dently with a conviction of the practical import- ance of early and exactly recognising the states of organic or vital action, that J. P. Frank and Horn divided the acute states into (n) sthenic, and (h) asthenic ; the former comprising the sim- ple, the iufammatirry, and the bilious varieties ; the latter the malignant or putrid, the scorbutic, and the nervous of IIiciiter, KnEvssic, and some other authors. Without adverting to the divisions by Sacar and Sauvagks, which are formed upon no consistent principle, but chiefly upon the causes that produce the disease, I will notice such as have been adopted by some of the most experienced writers. Whilst they agree in the more general division into acute and chronic, they diflTer mate- DYSENTERY, ACUTE — Causes the arrangement of the acute states, particularises ■ SVMPTOMS. 69; rially ZiMMERMANN particulaHses the injiunnmilory, malignant , putrid, and chronic states. RirirrEH describes the simple, injiamwatory , bilious, and nervous forms ; and Kreyssig adds to these the jiituitous or mucous, and the putrid or malignant. AIM. FouHNiER and Vaidv adopt nearly tiie same division as Kreyssig, but they adduce in addition, the association of the disease with tiiphus and ague. Schmidtmann distinguisiies the simple, the injiammatory , the bilious, and bilious-ill fiammatory, the nervous, and the putrid varieties. M. A ignes, one of the most recent and experienced writers on dysentery, consiJers, first, its benign or purely injiammatory states, under the denomination of mucous and bilious ; and, next, its malignant forms, comprising the typhoid, adynamic, ataxic, and complicated. In the de- scription I am about to give of the disease, I shall follow a nearly similar arrangement to the most a])proved of those adopted by the ablest and most experienced of my predecessors. In the^csf place, those acute forms will be noticed which are the most simple, which are more or less sthenic or inflammatory, and in which the vital energies are either not materially affected, or not per- verted to the extent of subduing the natural ten- dency of the economy to resolution and to a restoration of the healthy action. Secondly, the asthenic, or more unfavourable and complicated states, which have been variously denominated, according to the predominance of certain charac- ters, arising out of particular circumstances and epidemic influences, will be considered. Thirdly, tile chronic and complicated forms will be de- scribed. II. Of Acute Dysentery. — i. Its Simple, Sthe- nic, OR PURELY- Inflammatory' States. Classif. — III. Class, I. Order. 8. Defin. — Tormina, tenesmus, mucous or bloody stools, and a sense of heat or pain in the colon and rectum, with tenderness on pressure, and symptorr- alic fever ; the nervous, circulating, and muscular functions not indicating vital depression until late in the disease. 9. A. Causes. — (a) The predisposing causes of the sthenic states of the disease are chiefly high ranges of temperature following wet and cold seasons ; whatever favours the production and accumulation of morbid secretions in the biliary apparatus and prima via ; debility of the digestive organs, particularly of the intestinal canal ; a ple- thoric state of the vascular system ; unnatural flexures of the colon favouring faecal accumu- lations in the bowels ; neglect of the functions of digestion and faecation : the habitual use of spirit- uous liquors, or other inebriating beverages in excess ; rich food, and highly seasoned cookery. Dysentery is generally most common in autumn and in the beginning of winter ; in persons of the rheumatic diathesis ; and in those who have un- dergone great fatigue ; or who have been recently affected by continued, remittent, or intermittent fevers ; but, in such circumstances, it is as often of an asthenic as of a sthenic kind. 10. (fc) The eiciting causes of the sthenic forms of the disease are drunkenness ; exposure to vicis- situdes of climate or of temperature, and especially to cold and moisture, or to the night-dews; sleep- ing in the open air, and more particularly on the ground, without sufficient protection intervening. or without requisite covering, as in the case of armies in the field ; wearing damp or wet clothes, or too thin clothing ; acerb, acid, unripe, or over- ripe and stale fruit and vegetables ; raw, cold, and indigestible fruit, &c., as cucumbers, melons, pine-apples, &c. ; the stones and seeds of fruit ; unwholesome food, especially unripe or blighted corn or rice; and acid or unwholesome drink, as sour or bad beer and wine. The exhalations from wet, cold, and clay soils and marshes, or from the banks of lakes, rivers, and canals ; and the use of marsh, stagnant, or brackish water for drink, with many of the causes mentioned in con- nection with the other forms of the disease (^22.6.), will also produce this form in persons of a san- guineous and plethoric constitution. Mr. An- nesley states, that dysentery became, at one time, remarkably prevalent amongst the British troops in India to which he was attached, and that, upon investigation, lie traced it to their eating the pork of the country with their breakfasts. Upon a stop being put to this practice, the disease altogether disappeared. 1 1.J3. Symptoms and Progress. — Sthenic dys- entery presents various states and grades of severity, depending upon the nature ef the cause, the state of the secretions, and the degree of inflammatory irri- tation or of spasmodic action of the bowels result- ing therefrom. It is often preceded by constipation when occurring sporadically, and frequently by diarrhoea when arising from endemic or epidemic causes ; but in many instances the dysenteric symptoms appear from the first, and are attended by chills or rigors. When it is caused by endemic causes, or is epidemic, the inflammatory symptoms may be very slight, and yet the constitutional dis- turbance and morbid action of the bowels very con- siderable ; or the irritation and inflammation may be along the small as well as the large intestines. 12. (a) The milder state of the complaint, espe- cially as it occurs sporadically in Europe, com- mences either with liquid and feculent or with mucous stools, the latter being occasionally streaked with blood, and always becoming so in a few days. Generally, horripilations or chills pre- cede, accompany, or follow these evacuations, which are consequent upon gripings and a sense of increased action in the course of the colon ; and are often passed with heat and scalding in the rec- tum, followed by straining or tenesmus. The stools are frequent ; commonly from eight or ten to more than double this number in twenty-four hours, and are streaked with more or less blood. They subsequently become less mucous, more watery, and sometimes contain traces of faiculent matter. There is little or no pain in the abdomen between the calls to stool , but often an irksome sen- sation is felt in the situalidn of the sigmoid flexure of the colon and of the rectum. The pulse is either very slightly aftected, or quick and small ; the tongue is generally loaded or furred ; and the thirst increased. The appetite is frequently not much, or even not at all impaired. This slightest grade of the disease may terminate favourably in from six to nine days, or it may pass into a chronic form. — Relapses, and organic changes iri the large bowels, sometimes also/follow it. 13, (6) In its more severe states, dysentery is preceded either by diarrhoea, or by disorder of the stomach and bowels ; or by nausea, flatulence, constipation, and occasionally vomiting. These Yy 4 696 DYSENTERY, ACUTE — symptoms may be of two or three days' duration, before the characteristic evacuations are observed, or be accompanied or followed by distinct chills or rigors, ushering in increased heat and frequency of pulse. In other cases, very frequent, scanty, mucous, and gelatinous motions, streaked with blood, preceded by gripings and tormina, and attended by straining, at once introduce the dis- ease. Frequently the horripilations or chills con- tinue to alternate for some time, with increased heat, and other febrile symptoms. The pain at first is often limited to the rectum and sigmoid flexure of the colon, occasional griping only being felt in the abdomen. The pulse is slightly acce- lerated, and the tongue white and loaded. If the disease be not subdued or mitigated in this early stage, tlie calls to evacuation become more fre- quent ; are preceded by more severe griping and tormina; are attended by greater straining; and are sometimes jnefTectual. The tongue is more loaded, aud the pulse more frequent and small. In many cases, however, little or no pain is felt, excepting when the patient is about to pass a motion, although the matters discharged are most morbid, and the constitutional affection severe. This, however, is do evidence of the absence of inflammation j for the mucous surface of the large bowels may be inflamed, and even ulcerated, and yet but little uneasiness, unless upon firm pressure, will be complained of. Often, where pain in the intervals between the tormina is absent, a sense of heat in the course of the colon, or of soreness in the abdomen, is felt, and indicates, even more than acute pain, the existence of inflammatory action. As long as disease has extended no fartiier than to the mucous surface of the large bowels, the patient seldom feels more than the above sensations, or a dull aching pain, not increased on pressure, which he describes as shooting, at times, through the abdomen ; but when the region of the cfficum is minutely examined, pain or fulness is generally detected in that situation, even when neither can be felt over the sigmoid flexure. 13. As the disease proceeds, the stools become more frequent, the tenesmus more severe, the dis- charges of blood greater and more mixed with the matters evacuated, which gradually pass from a mucous, slimy, or gelatinous, to a watery and dark muddy appearance, either with an intimate admixture of feculent matter, or occasionally with hardened faeces, and even with pure and unmixed blood. The tenesmus is now attended by a feeling as if the bowels themselves would pass ott"; and, in children and delicate persons, j)rotapsis aid not unfrequently occurs. In some instances, as the disease advances, substances resembling fat or pieces q( flesh, and consisting chiefly of masses of coagulable lymph, or of the fibrine of the blood poured out in the bowel, come away. The urine is now, and often early in the complaint, of a high colour, voided frequently, al- ways with scalding pain, or difficulty; and some- times the dysuria amounts to strangury, owing to the vicinity of the chief seat of disease. The tongue is at this period loaded towards the base, and its papilla; are excited. 'I'lie pulse is quick and small ; the skin harsh, hot, and dry, especially over the abdomen ; the tormina and tenesmus in- crease, and the calls to stool are more incessant, especially during the night and early in the morn- ing, when tho febrile symptoms are also much aug- SviMPTOMs — Progress. mented. The thirst is urgent and the appetite lost ; every thing taken to assuage the thirst being fol- lowed by tormina, and a desire of evacuation, as if it had rapidly passed through the bowels; and the patient desponds. Subsequently pain becomes more fixed in the hypogastrium, the abdomen more tense, full, or tender ; the strength sinks ; and dyspnoea sometimes supervenes, — indicating the extension of inflammatory action to the peritoneum. If no amelioration take place before the appear- ance of these latter symptoms, the pulse becomes more quick and feeble, the extremities cold ; the tongue either brown, or dry and hard, or glazed, red, and aphthous ; the strength more reduced, the emaciation great; the discharges dark, watery, oflTensive, cadaverous, and like the washings of flesh ; and the spirits dejected. Hiccup sometimes occurs ; with delirium, relaxation of the sphincter ani, leipothymia, and death, at a period varying from a fortnight to thr^e or four weeks. In other instances, the disease is arrested some time before dangerous symptoms supervene, or is mitigated only, and thence passes into the chronic form. 14. Simple dysentery presents every grade of severity between the two now described ; and such are the most common appearances which it assumes in this and in temperate climates ; but the symp>toms often vary much, according to the causes, the age, and strength of the patient ; the parts of the canal first affected ; the pre-existence of collections of morbid secretionsor fa;cal matters, the external agents operating during treatment, and the means employed. To some oT these viodijications and their pathoh'gical- rehitions it is necessary to advert. When it arises sporadically, febrile action, ushered in by chills or rigors, seldom is observed until the dysenteric symptoms are formed, and is merely symptomatic of the local disease, which may commence in the cfficum, or in the colon and rectum, or in this last, and be there in a great measure limited, or may extend more or less to other parts. Thus patients are frequently affected with diarrhoea, uneasiness and fulness of the abdomen, particularly in the region and vicinity of the caecum, several days before mucous and bloody stools or straining are com- plained of, especially when the disease is conse- cutive of fever ; and occasionally they experience tenesmus some days before the disorder is fully formed. In these cases, the progress of afl^ection from the caecum, or even from the small intestines, along the colon to the rectum, as well as in the opposite direction, may be traced by the symptoms, when tlie patient comes early under treatment. In other instances, especially those consequent upon fever, and in some epidemics, febrile action may co-exist with, or even precede, the earliest symptoms. It is, therefore, important, in a prac- tical point of view, to ascertain the early seat and extent of morbid action, as well as its constitutional relations ; as, together, they furnish tlie chief basis of therapeutical indications ; for, in proportion as constitutional disturbance is great, previously to the formation of the bowel affection, the less should antiphlogistic or depletory measures be relied upon in the treatment. In general, although the straining be severe, and the calls to stool fre- quent, yet if uneasiness or pain be not occasioned by pressure over the region of the caecum and sig- moid flexure of the colon, if heat in the course of the colon be not felt, and if tormina be not DYSENTERY, HYPER-ACUTE violent, nor the abdomen tense or tender, the rectum may be considered the cliief seat of the disease ; the secretions poured out in the upper parts of the intestinal canal having produced, first, irritation, and afterwards, inflammation of this part. But, if there exist much primary constitu- tional disturbance, this inference should not be drawn ; for, in such cases, the mucous surface of both the small and the large bowels may be seriously affected, and yet these symptoms may not be present in any evident degree. Cases will also occur, characterised by tormina, twisting pains about the umbilicus, borborygmi, tension of the abdomen, more or less febrile commotion, and frequent calls to stool ; the evacuations being mucous, bloody, and subsequently watery, &cc. ; and yet little or no tenesmus will exist. In these the seat of disease is chiefly the ilium, the caecum, and upper part of the colon ; which often become speedily ulcerated if the morbid action be not arrested. When, in addition to these symptoms, tenesmus is urgent, the rectum and sigmoid flexure ot the colon are also affected. 15. In this form of disease, the quantity of matters evacuated from the bowels is extremely various. In severe or advanced casts, from twenty to thirty, or even forty, eflbrts at stool are sometimes made in the twenty-four hours, and often without any further discharge than a little mucous and blood ; but occasionally much serous or watery matter, with broken-down faeces, slime, mucus, and blood, is voided, exhausting and emaciating the patient. In some instances, the evacuations are muco-puriform, more or less streaked with blood, without the least trace of fa;ces ; and in others, they contain scybalas. It would seem, that the retained faeces are frequently broken down or semi-dissolved by, and mixed up with, the serous and sero-sanguineous fluid exhaled from the irritated mucous surface ; and hence the infrequency of scybalag in many states of the dis- ease. The evacuations are often very offensive from the commencement, but as frequently they are not manifestly so. They generally become foetid, or have a peculiar raw cadaverous odour in the last stage of the worst cases ; especially when portions of the mucous surface are sloughed off. They are sometimes of a singularly variegated hue ; consisting of glairy mucus, with a greenish or ge- latinous substance, resembling morbid bile ; seldom with pure bile ; often without any trace of this secretion ; occasionally with large pieces of albu- minous concretions of coagulated lymph or fibrine, formed upon the internal surface of the bowel, and afterwards detached ; and either with streaks of fluid blood, or with small dark coagula. When the blood is in large quantity, and is fluid and distinct from the other matters, it is evidently poured out by the lower parts of the large bowels. When consisting of dark grumous clots, intimately mixed with the discharges, it probably proceeds from the caecum, or upper portion of the colon. It may, or may not, even when most copious, depend upon ulceration ; but it most commonly is exuded from the irritated mucous surface, espe- cially early in the disease. It may be very abun- dant, even at this stage, and continue so till death, particularly in drunkards ; or it may be trifling throughout ; or be copious only at the close of the disease. 16. The state of the abdomen also varies. In Symptojis. 697 some, tension with fulness, proceeding generally from fffical accumulations ; and flatus is much complained of from the commencement. Iti others, the abdomen is natural in size. Pain and tenderness on pressure are uncertain symptoms in the early stage of the disease. When it is fixed in one place, we should suspect inflammation or disorganisation to be proceeding there. It is, in the plethoric, most frequently complained of in the hypogastrium and region of the caecum ; and it may often be traced up the right side and in the course of the colon. Often there is little or no pain, nor even soreness ; the patient bearing pressure without expressing any uneasiness, and yet, upon examination after death, the morbid ap- pearances will be as extensive, in respect of the inner surface of the bowel, at least, as in those who complained of the greatest pain ; the chief difference being in the more complete limitation of the lesions to the mucous surface in those cases wherein no pain was felt. It is chiefly in the last stage, when inflammatory action has extended to the serous surface of the bowels, that fulness, pain, and tenderness of the abdomen have been com- plained of. 17. (c) Hy]ier-acute dysentery, or dysentery in Europeans removed lo warm countries, is generally occasioned by a too rich and stimulating diet, and a regimen entirely unsuited to the climate ; by the too free use of ardent and intoxicating liquors ; by exposure to the night air, or to cold and mois- ture ; and by the endemic and other causes men- tioned above (^5> 9, 10.). It often assumes the severe character now described ; and, in persons who are plethoric, who have neglected their bowels, have lived highly, or are of a phlogistic diathesis, or who possess rigid fibres and great ir- ritability, it puts on a still more violent or a super-acute form. In them, the sense of heat and soreness ; the tormina, fixed pain of the hypogas- trium, the tension of the the abdomen, the conti- nual calls to stool, and the straining, are most dis- tressing. The region of the caecum is full and tender. The tongue is white, loaded, excited ; sometimes clean and natural, but afterwards dr^'. The skin and pulse are frequently, at first, and for some time, very little affected ; the constitutional disorder not being commensurate with the severity of the local symptoms; but the former subse- quently becomes dry or hot, and the latter quick, hard, and small. In many cases, the disease be- gins as common diarrhoea ; in others, it comes on suddenly, and rapidly reaches its acme ; and then the thirst is excessive ; the urine scant}-, voided with great pain, or altogether suppressed ; tiie testes drawn up to the abdominal ring ; the stools mu- cous, slimy, streaked with florid blood, sometimes attended by prolapsus ani, and rapidly passing to watery, serous, or ichorous discarges, resembling the washings of raw beef, in which float particles, or even large shreds of coagulable lymph, thrown off from the acutely inflamed surface, often with copious discharges of blood. Great depression of spirits, nausea, vomiting of bilious matters, and distressing flatulence or borborygmi, which aggra- vate the tormina, are also present, and, in many of the fatal cases, continue to the last. In some of these the inflammatory action extends to the sub- mucous coats, and detaches portions of the mucous tissue, which come away in the stools, in the last stage, or even hang from the rectum ; any effort 698 DYSENTERY, ASTHENIC to withdraw them occasioning a remarkable in- crease of suffering. The constitutional disturbance has now become very severe, and a foetid or cada- verous odour proceeds from the patient. De- tached portions of the mocous membrane will be recognised by their sloughy appearance ; by the ichorous character and putrid smell of the dis- charges which contain them ; and by the period at which they are observed, the albuminous exuda- tions that resemble them being thrown off at an earlier stage. 18. In somewhat less violent and more pro- tracted cases, especially as the disease approaches an unfavourable close, the motions are sometimes streaked with a puriform sanies, or with a whitish, opaque, or greyish matter, apparently depending on ulceration ; and they frequently are involun- tary, owing to the paralytic state of the sphincter, the anus being excoriated, livid, relaxed, and widely open. The surface of the body, also, is shrunk, occasionally yellowish ; the superficial veins deprived of blood, and the extremities moistened with a cold sweat. At last, the patient is affected by leipothymia, or stupor, or by deli- rium, and otber nervous symptoms, and dies in from four, five, or six days, to three weeks, unless the disease is of a milder or more chronic form, or is arrested by treatment. 19. In Europeans, long resident in an inter- tropical or hot country, the disease assumes either a less inflammatory form than the preceding, or some one of the asthenic states about to be de- scribed : it also frequently becomes chronic in them, and is often consequent upon, or associated with, ague, remittent fever, or with diseases of the liver, spleen, and other abdominal organs. (See § 20. et seq., and Complications.^ ii. The Asthenic Forms of Dysentery, Classif. — III. Class, I. Order (^Authoi-), 20. Uefin. — Depression oj the organic actions ; oj' the tone of the circulating, nervous, and 7nnscii- lar functions, preceding or accompanijing the oc- cui~rence of tormina and tenesmus, with mucous, bloodu, and offensive stools, and giving rise to fcetid exhalations, and infection in confined places and predisposed persons. 21. The asthenic forms of the disease have been variously denominated, according to the more prominent features assumed by them under certain circumstances, endemic as well as sporadic, and especially in different epidemics. Whilst the foregoing states are generally attended, especially in their early stages, by sthenic vascular action, those about to be noticed are usually charac- terised by fever, of a low, nervous, or adynamic kind ; by greater prostration of the constitutional powers than the preceding ; by an earlier mani- festation of febrile commotion or constitutional affection, whicii may even precede the dysenteric symptoms ; and by a much more remarkable af- fection of the whole economy: and while the above forms are generally sporadic, sometimes en- demic, and seldom epidemic or infectious, those about to be described are commonly epidemic and infectious, under circumstances favourable to thi^ mode of propagation; sometimes endemic; and more rurely sporadic, excepting in the daiker races of the species, in which it is extremely apt to become infectious, when occasions promote its spread in this manner. 22. /I. Causes. — (a) The predisposing canses •Cause3. of the asthenic forms of dysentery are, chiefly, epi- demic states of the atmosphere ; cold and variable weather after long heats, or after hot and moist seasons ; prolonged heat and humidity ; accumu- lations of morbid secretions in the prima via ; a cachectic habit of body ; deficient and un- wholesome food ; pre-existing debility, especially that caused by low fevers ; an impure and mias- matous state of the air, especially when connected with humidity ; worms in the prima via ; and the predisposing causes already enumerated (§ 9.). (6) The exciting causes are, famine or pro- longed fatigue ; exposure to a moist cold ; the excessive use of intoxicating liquors ; exhalations from animal and vegetable matters in a state of decay ; the use of marsh, stagnant, or river water holding decomposed animal and vegetable matters in solution, or containing, either with or without these, animalculse and minute insects, or of brackish waters ; the flesh of diseased animals, or meat kept too long, or tainted ; stale fish ; blighted, unripe, or ergoted rice, rye, &c. ; unwholesome or insufficient food ; breathing the stagnant or in- fected air of low, crowded, and ill-ventilated places, especially when u case of the disease oc- curs in such circumstances — as in hospitals, camps, prisons, ships, barracks, &c. ; and the exhalations proceeding from the discharges, and from the sick, either confined and concentrated in a stagnant, or floating in a warm, moist, mias- matous, or epidemic atmosphere. But there is reason to suppose, that the concurrence of two or more of the causes enumerated in connection with the sthenic states of the malady will also produce some one of the asthenic forms, during certain conditions of the air which have been called epidemic, especially in persons of a weak frame and depressed vital and mental powers. The least energetic, also, of the above causes, acting on persons already affected by the preceding form of the disease, will convert it into some one of the asthenic stales. Owing chiefly to the diversity of the exciting causes, to their concurrent operation, and to the difference in the state of constitutional predisposition, &c. are to be imputed the modifi- cations which the disease presents when epidemic, or at different seasons. 23. a. Of the influence of exhalations from ani- mal bodies in a state of decomposition, in causing the low forms of dysentery, 1 could produce, if my limits would permit, numerous proofs. One of the authors of the article Di/senterp, in the Dic- tionnaire des Sciences Medicates, states, that, hav- ing been detained on horseback in a field of battle, in August, 1796, where several hundred men and horses lay in the first stage of decomposition, he was seized with a dangerous dysentery on the following day ; that three out of four of those who accompanied him were similarly infected ; and that his hor'se died of the same disease soon after. Si- milar facts are adduced by Zimmermann, Osian- i)EH, Desoenettes, and others. Of the agency of impure water, in producing dysentery, proofs are likewise numerous. 1 have myself seen several instances, in a warm climate, where it was tire cause of the disease being endemic there. In temperate countries, waters containing decayed animal matters, or an excess of uncombined alkali, cause diarrhoea more frequently than dysentery, or the former passing into the latter. But in warm climates, especially where water is collected and DYSENTERY, ASTHENIC — Forms and Symptoms. 699 preserved in tanks, and in autumn, after warm summers, in colder countries, dysentery is the most common result. The water of the Seine at Paris, from this cause, often produces the disease ; and Dr. M. Barry states, that such of the inha- bitants of Cork as used the water of the river Lee, which receives the contents of the sewers, and is, moreover, brackish from the tide, are subject to a very fatal dysentery ; and that, at the time to which he especially refers, at least one in three of those affected died of it. I have no doubt that the dysentery epidemic in London during several successive autumns after the great plague, was owing to the same causes, as well as to the exhalations from the burying-grounds, which received the bodies of those who died of that pestilence ; and that the prevalence of the disease in besieging, as well as beseiged armies, is caused by the exhalations from the decomposition of the dead ; by the impure state of the water, from decomposed animal matter carried into it ; by night exposure; irregular living, deficient food or clothing, and the other contingencies ou encampments and operations in the field ; and by crowded and ill-ventilated barracks, &c. The frequent occurrence and fatality of dysentery in fleets, in former times, evidently arose from the putrid state of the water, and the foul and stag- nant air between decks, sometimes breathed by several hundred persons. During the slave trade dysentery was, and even now is, among the nume- rous small vessels engaged in this disgusting traffic, the chief pestilence ; one half of those conveyed in these floating receptacles of misery, on some occasions, having died of it during the passage across the Atlantic. It may be here mentioned, that the dark races, particularly negroes, are more liable to dysentery than any other disease ; that it assumes an extremely low or putrid form in them, when confined in ill-ventilated situations ; and that, when a number, even of those in health, are shut up in such places, the cutaneous secre- tions, which are so abundant and offensive in these races, accumulate in and vitiate the sur- rounding air, so thatif it benot frequently renewed, the systems of those thus circumstanced are thereby infected, and, instead of an infectious typhus, which would be the result in the European constitution, a putrid dysentery, spreading rapidly through all breathing the impure air, is developed. I had, in 1817, an opportunity of witnessing what I now state. The disease is considered by the native Africans asinfectitious as small-pox, and is dreaded by them equally with it ; these two being the most fatal diseases to which they are liable. 24. /3. The contagion of dysentery has been much disputed ; chiefly owing to the circumstances of the different forms of the disease not having been distinguished with any degree of precision, and of the loose notions attached to the words contagion and infection, by those who espoused different sides of the question. In the article Infection, these terms, and their true value, are attempted to be estimated w-ith more precision than hereto- fore. As respects this malady, it may be stated, as the result of observation and acquaintance with what has been written, that the sthenic forms are seldom or never infectious — and chiefly for this reason, that the circumstances in which they occur are unfavourable both to the generation of infectious emanations, and to their accumulation, concentration, and operation, in healthy persons — that, in short, they, like all other sthenic maladies, do not evolve infectious effluvia, because the vital energies are not depressed nor perverted to such a degree, even in their advanced stages, as to give rise to the depravation of the circulating and secreted fluids requisite to the production of infectious emanations, these changes taking place only when some one or more of the causes which produce these effects — the causes of the asthenic states — come into operation ; — that febrile dis- eases, attended by depravation of vital power and of the fluids, evolve effluvia capable, under favourable circumstances, of infecting or contaminating those disposed to be impressed by them ; — and that, as the asthenic forms of dysentery are characterised by these properties, and as the emanations disengaged in their advanced stages become cognisable to the senses, as well as by their effects, it must be inferred, that these forms are infectious on occasions favourable to the action of the emanations which proceed from them. These inferences, founded on an important pathological principle, are con- firmed by enlightened and most numerous observa- tions ; and, independently of such confirmation, this principle must be shown to be unfounded before the inferences drawn from it can be denied. Thus it will appear that the great difference of opinion that has existed on this subject is to be referred, first, to the fact that certain states only of the disease are infectious, and these chiefly in circumstances favourable to the development and operation of the infectious emanation ; and, secondly to the incorrect notions entertained re- specting contagion and infection ; many believing because the disease is not propagated by me- diate or immediate contact of the diseased person, or of a palpable secretion or virus, that therefore no contagion nor infection is produced by it. But the spread of dysentery very closely resembles that of scarlatina or measles, which cannot be propagated by innoculation, or by the application, either direct or indirect, of the morbid secretions to a confined part of the external surface ; and yet the efHuvium from the sick or the faecal evacuations, floating in a close or stagnant air, will readily induce the disease, in persons who, constitutionally, or from the influence of con- rent causes, are disposed to it, and who breath the air thus contaminated. In such cases, the effluvium operates, as in other infectious diseases, chiefly through the medium of the respiratory organs ; the system being aflPected, although not very manifestly, before the dysenteric symptoms are developed. Several respectable authors, how- ever, have conceived it to be propagated, when persons repair to the water-closet or night-chair used by dysenteric patients, by the action of the infected air or effluvium upon the anus, the affec- tion extending upwards, along the rectum. IIurE- LAND and some others state, that they have seen the complaint communicated by the pipe of an enema apparatus. But, in most of the instances of the infectious disease that I some years ago li'ad an opportunity of seeing, constitutional dis- turbance, and often diarrhcea, preceded the fully- formed dysentery. 25. B. Forms AND Symptoms. — a. The simple aatJienic or adynamic diisentery. This variety is one of the most common, particularly in this country. It may occur sporadically in delicate persons, 700 DYSENTERY, ASTHEN bwing chiefly to the more debilitating causes as- signed above. It is also frequently epidemic, especially among the poor in times of scarcity, and after very wet and warm seasons ; it often follows attacks of adynamic fevers, or prevails at seasons when they are prevalent. It was epi- demic in Glasgow in the autumn of 1827 ; and is described by Mr. Wilson, Mr. Brown, Dr. Macfarlane, and Mr. Weir (Glasgow Med. Journ. vol. i. pp. 39. 48. 99. 223.) It generally commences with diarrhoea, succeeding a con- stipated state of the bowels ; and very frequently, especially in the more severe cases, coldness, chills, or rigors are observed, attended by griping pains about the lower part of the abdomen, with fre- quent calls to stool ; and sometimes followed by fixed pain in the hypogastrium, particularly at its right and left sides. Want of appetite, increased thirst, furred tongue, clamminess of the mouth, and acceleration of pulse, usually are superadded. As the disease becomes fully formed, the pulse is more or less frequent, small, weak, and soft ; the skin is sometimes but little warmer than natural, or only hotter over the abdomen ; it is commonly harsh and dry. The countenance is pale, shrunk, and anxious ; sickness and vomitings occasionally occur; and singultus is not infrequent in the latter stages, when the tongue, from being white, slimy, furred, and yellowish, generally becomes red, glazed, and chapped, and occasionally dark red and dry. The stools sometimes are not mucous, slimy, or bloody, although very frequent, until the second, third, or fourth day ; but, in other instances, they present these characters from the first. They are always of this description as soon as chilliness or rigors are felt. The eva- cuations vary greatly in frequency and quantity ; but they are generally characterised by a deficiency of bile, by great foetor, and by the absence of scybala, excepting in a very few cases. Remis- sions of the symptoms, and of the urgent calls to stool, often occur about the middle of the day. The tormina and straining are sometimes followed by prolapsus ani, especially in children and deli- cate females. In a few instances, a puriform fluid is voided towards the close of the disease. The urine is usually scanty, passed with pain, and rarely re- tained. This is the least infectious of any of the states of the disease comprised under this species ; unless in close and crowded places ; and then it manifests this property, and passes into some one of the states next to be described, particularly the typhoid. 26. 0. The nervo-adqtiamic, or tifphoid. — Asthenic dysentery sometimes appears in a modi- fied form under certain circumstances, especially where numbers are collected in a close and impure air, as in barracks, garrisons, crowded ships, &c. ; and in years of scarcity among the poor. 'The patient complains at first of general depression, vertigo, violent headach, increased sensibility to light, pains in the limbs and joints, and of gripings and purgings followed by anxiety at the pra;cordia, stupor; foul, clainniy tongue and mouth, which soon becomes dry and covered by a brownish coating; a penetrating, ofl'ensive odour of the breath ; antl intense thirst, 'i'he pulse, at first, is very (|uick and small ; and, after- wards, weak and irregular. 'I'he stools are, from the commencement, very frequent, in small quan- tity, preceded by tormina and tenesmus; and IC — Typhoid — PoTitiD. glairy, or serous, very foetid, and "contain more 01' less dark blood. The urine is scanty, thick, and dark-coloured. About the fourth or sixth day, a miliary eruption, or petechiae, sometimes appear about the neck, breast, arms, or abdomen ; and, occasionally, epistaxis occurs, between the fourth and eighth days, in young and robust subjects, but without becoming critical. The intensity of the tormina and tenesmus generally diminishes with the progress of the disease ; and often about the ninth or eleventh day, is replaced by a col- liquative diarrhoea. The stupor is now attended by low delirium ; the soft solids waste and be- come flaccid ; the surface assumes a dirty hue ; and an offensive penetrating odour issues from the body and the evacuations. If not ameliorated, or arrested in its progress, this form terminates fatally from the sixth to the twenty-fourth day, the symptoms described {§ 13. 18.) as indicating a fatal issue supervening. Such are the charac- ters it usually assumes; but they are modified by age, constitution, and concurrent causes. It is less frequently epidemic than the other asthenic states, but is more evidently infectious than they. 27. y. The malignant, or putrid. — 'This form is most common amongst the poor, especially in years of scarcity ; in soldiers during campaigns ; in besieged towns, and in countries laid waste by war, &c. It also arises from the existence of en- demic causes in full force, especially those which occasion malignant fevers — as animal and vegeto- animal exhalations floating in a warm and moist air; foul water, and other septic agents. It usually com- mences with a general feeling of debility, lassitude, and aching pains, referred particularly to the limbs and joints; with anorexia; foul, loaded tongue ; sometimes nausea, borborygmi ; relaxed bowels; pale, sunk, or anxious countenance ; gid- diness ; and with a small, soft, frequent, and sometimes slow or natural pulse. 'To these super- vene griping pains in the abdomen, followed by foul, offensive, scanty, and bloody stools ; some- times without tenesmus, particularly at first. Hor- ripilations, or chills, rarely rigors, sometimes occur, at irregular intervals, during the early progress of the disease ; but they are often absent. 'I'he mental energies are greatly depressed, especially as the disorder advances ; when the tongue, which was moist and slimy, becomes covered by a dark, mu- cous, or fuliginous sordes ; the breath is foetid ; and a dark mucus occasionally collects about the sides of the tongue and on the lips ; or aphthae form in this situation. Tenesmus is now complained of; and the stools are cadaverous, watery, dark, and bloody ; the soft solids flaccid ; and the skin harsh, dry, and of a sickly, dirty, sometimes ap- proaching a yellowish, hue. Tlie patient after- wards sinks into a state of complete apathy ; but stupor or delirium seldom comes on until shortly before dissolution : the position in bed is supine ; the dejections are involuntary, frequent, and mixed with dark blood, often followed by syncope or leipothymia ; the temper.iture of the extremi- ties sinks rapidly, whilst it continues much higlier over tiie abdomen ; the urine is scanty, dark, and fu'tid ; and the body exhales an infected odour. Anxiety at the pra-cordia, singultus, and difficult deglutition supervene; and the patient sinks "in fioni five to sixteen or twenty days, according to the violence of the symptoms. This form of the disease is frequent in the most miasmatous DYSENTERY, ASTHENIC ~ Bilious Adynamic. 701 localities ill liol climates, both among natives and seasoned Europeans, particularly when remittent fevers are prevalent or malignant ; and it occa- sionally assumes a remittent type, when it may be prolonged to twenty-eight or tiiirty days. 1 saw many cases of it in Africa in 1817 and 1818. * 28. S". The bilious adiinomic. — When bilious, remittent, and gastric fevers are prevalent, a form of dysentery often also prevails, very nearly re- sembling the first or simple variety; and differ- ing from the foregoing or third form, chiefly in presenting more evident attempts at vital and vascular reaction than it. The present variety sometimes appears, sporadically, in autumn and winter; it is often endemic, in hot climates, among Europeans, arising from the same causes as endemic fevers, aided by cold and moisture ; and it occasionally prevails, or becomes epidemic, in temperate countries, during autumn and the beginning of winter, especially after hot sum- mers. This and the immediately preceding variety frequently co-exist, in the same localities, in warm climates, or after hot seasons in temperate coun- tries : this, in the plethoric, sanguine, and robust ; that, in the debilitated, ill-fed, and weakly con- stituted. Bilious adynamic dysentery is generally caused by a less intense operation, relatively to the powers of the constitution, and to the predisposi- tion of the same exciting causes, particularly such as are endemic, as those which occasion the ma- lignant form. I have seen it prevalent in Eu- ropeans, in warm climates, in the same locality and in the same season as when that form was most destructive in the dark races. Many epi- demics recorded by authors belonged to the present variety ; although, during an epidemic dysentery, more than one form or state of the disease will be met with, owing to the different circumstances, intrinsic and extrinsic, as respects those affected, in which it will occur. 29. This variety generally co?;imences with bilious or serous diarrhoea, which may continue for seve- ral days ; with debility, pain in the forehead, vertigo, and a mucous yellow coating on the tongue. To these supervene horripilations, chills or rigors, tormina, very frequent calls to stool, a sense of scalding at the anus, and tenesmus. The chills often return during the early stages, and are followed or accompanied by a frequent, hard, or irritable pulse, great thirst, and an acrid heat of the trunk, especially over the abdomen. Nausea, sometimes vomiting, want of appetite, loathing of animal food ; a sense of heat in the abdomen ; ful- ness in the seat of the cfficum ; pain above the pubis ; complete prostration of strength, referred chiefly to the spine and lumbar region , and scald- ing on the passage of urine; are commonly pre- sent at an early period. The pulse, from being quick and irritable, becomes soft ; subsequently small, irregular, and very weak. The stools * Most of the crew of the ship in which I was a pas- senger to that country were treated by me, for seasoning and remittent fevers, soon after their arrival. They alt recovered before I reached my destination. The vessel subsequently went in pursuit of trafiic up one of the rivers in the hay of Benin, where the crew there be- came ill of this form of dysentery ; of which all died ex. cepting the second mate and carpenter, whom I chanced, long afterwards, to meet in England. Not one third of the crews of the many vessels that proceed up these rivers survive this disease and fever. The men, who are often deceived into undertaking the voyage, have not even the benefit of medical aid ; for none of these vessels is pro- vided with, or is within reach of, this kind of assistance. sometimes continue copious and yellowish for two or three days ; but they are usually streaked with blood at the time when tormina and tenes- mus are complained of, or soon afterwards. As the disease advances, the blood is more abundant; either mixed with the stools, or fluid and distinct, or in large coagula, and usually of a dark colour; and the abdomen becomes tense, or tumid and tympa- nitic. The frequency and the quantity of the stools vary greatly ; but the distress and tormina are worst at night, the abdominal pain and un- easiness occasionally remitting in the morning, or subsiding for a short time after each evacuation. The odour of the discharges is, from the first, foetid ; and, in very severe cases, it becomes putrid and cadaverous. With the progress of dis- ease, emaciation proceeds rapidly, the surface being harsh, and of a dirty appearance. Towards an unfavourable state, the temperature sinks ; the tongue being dry, dark red, or raw ; and anxiety, restlessness, singultus, delirium, leipothymia, with other symptoms described as characterising the last stage of the preceding variety (^ 67.), super- vene. This form is seldom prolonged beyond twenty-six or thirty days ; unless it assumes a milder aspect in its progress, when it often passes into the chronic state. It is frequently epidemic after hot and moist seasons.* * Epidemic dysentery often presents various modifi- cations in respect both of violence and of the occurrence of phenomena not commonly observed. Of these latter, the most frequent are burning pains or great heat in the abdomen ; whilst the extremities and surface are cool or even cold, and the pulse sometimes not much affected; boulimia ; very copious, mucous, bloody, or gruelly and frothy, or, more rarely, oleaginous, evacuations ; great weakness of the lower extremities ; gangrenous eschars ; a parchment-like or scaly state of the skin ; hasmaturia, or entire suppression of urine ; an aphthous state of the mouth and throat ; retraction of the abdomen, or the great tension, fulness, or meteorismus of this cavity ; frequently the excretion of worms in the stools, or by vomiting ; miliary, petechial, phlyctenous or tubercular eruptions on the trunk ; catarrhal or pneumonic symp- toms ; and rheumatic pains in the muscles and joints. Generally, as the quantity of fluid matters evacuated from the bowels are increased, the excretions by the kidneys and skin are diminished. In most epidemics, especially those of the asthenic forms, constitutional symptoms, cha- racterised by lassitude, debility, foul tongue, disordered state of the stomach and bowels, unhealthy aspect of the countenance and skin, and weak, quick, and soft pulse, with evident disorder of the circulating and secreted fluids, precede the pathognomonic symptoms.which appear after these have continued a longer or shorter time. It will be instructive to review the characters of, and the reme- dies employed in, those epidemics of which we have authentic accounts, as valuable illustrations of the nature and treatment of this destructive malady will be thereby furnished. It will, moreover, appear, even from the very meagre account to which my limits oblige me to confine myself, that our knowledge of the disease, even at the present day, is but little in advance of what existed two centuries ago ; and that even the most recent writers on the subject are distinguished rather by confined or ex- clusive ideas as to its nature and treatment, than by comprehensive views of its forms and manifestations, as well as of the means of removing it, in connection with the various combinations of causes producing it, and the diversified circumstances in which it prevails. Exclusive notions of a disease are the result of a knowledge merely of what has occurred within the sphere of the author's observation J whilst more extended ideas are acquired from what he has remarked in various climates, on dif- ferent occasions, and at distant periods, and from an acquaintance with what has been observed by others : believing, truly, that nothing is constant but change- that what has occurred or prevailed formerly will recur again ; and that one form is as likely as another to appear in future, whenever the concurrence of causes, of which it is a necessary or contingent result, shall take place. 1 . Gregory of Tours states that dysentery ravaged the whole of France in 334. 2. Its destructive effects in the army of Henry the Fifth, before and after the battle of Azincourt, are well known. 702 30. E. In the Dark Races, dysentery is perhaps the most prevalent and fatal disease ; and in DYSENTERY — Epidemics. 3. Fernel says, that in 1538, it was so general through Europe, that neither village nor town escaped, although the seasons had been regular. 4. Camerarris observed it, in the autumn of 1583, in Germany, where it was malignant and destructive. The preceding summer had bsen hot and dry. 5. Zacutus (Curat, cent, iii.) notices an infectious and destructive dysentery in Lisbon, in 1600, for which fumi- gations were employed. G. Lammoniere describes it as it occurred m Lyons, in 1607, 1624, and 1625, where it had been imported with the troops from Italy. In proof of its infectious nature, he states that the medical attendants and nurses were nearly all attacked. Marks of inflammation and gangrene were found from the pylorus to the anus, the liver and omentum being also disorganised. 7. Sen.neht (Mid. Pr. 1. iii.) mentions an epidemic which pervaded all Germany in the summer and autumn of 1625; and Hoffmann states, that it reappeared in autumn 1626, after a wet and warm spring, and a dry and hot summer; that it was contagious; and was best treated by bleeding at the commencement, in some cases, by laxatives and demulcents, by nitre and absorbents, and l)y milk with Seltzer water. 8. DiEMERBROECK records, that the disease was most fatal in Brabant, in 163-^, then the seat of war. It first appeared amongst the troops, and afterwards among the inhabitants. The prostration of strength was great ; and infection was proved by the attendants having been all affected. The most successful remedies were rhubarb, and, afterwards, one or two drachms of wax melted in warm milk. 9. Bartholin relates, that a malignant dysentery suc- ceeded to ague in Copenhagen, in 1652, and carried off many thousands. The odour of the evacuations was most oficnsive. 10. The plague of London, in 1665, was followed, in the autumn of 1666, by an epidemic and infectious dysentery. Morton was attacked, and escaped with difficulty. It appears to have been occasioned by the infected air ema- nating, in the summer, from the numerous bodies buried in and about London during the preceding year. The fatality was very great ; and cinchona seemed to have been the chief remedy. 11. In an epidemic described by W. Wedel (Act. Nat. dec. ii.), and which occurred, in 1669, at Gotha, the eva- cuations were ftetid and sanguinolent ; and yet, in many instances, unattended by pain or tormina. Those in whom the tormina was most severe, recovered ; but those who experienced no pain, died suddenly, the disease having passed rapidly into gangrene. 12. Sydenham states, that the cholera which prevailed in London, in the summer of 1670, having ceased, dysen- tery took its place. The disease commenced with chills or rigors, followed by increased heat. The treatment was directed to remove inflammation, and evacuate mor- bid humours. 13. Bhandt notices the occurrence of dysentery, in an epidemic form, in the Danish army, and in Copenhagen, in the summer of 1677 ; and attributes it to the use of stagnant water and of bad beer, and to an atmosphere loaded with impure exhahitions. 14. Dysentery prevailed in Zurich in August, in 1680, after a hot summer. It appears from Muralto to have been of an inflammatory type. 15. An epidemic, observed by F. Hoffmann, in 1684, in Westphalia, was also inflammatory. Favourable cases terminated by the fourteenth day ; those that were pro- longed beyond it, generally terminated unfavourably. Persons in communication with the sick were infected. Bleeding at the commencement, and nitre with camphor, were the chief remedies : astringents and stimulants were injurious. 16. LoEscHER states that the epidemic dysentery of 1709, in Misnia, was attended by acute lever, petechia;, lividity of the countenance, meteorismus of the abdomen, and depression of strength and of the pulse ; followed, in many instances, by delirium, convulsions, and death. Clysters, ipecacuanha, laudanum, and sometimes bleed- ing, were employed. 17. In August, 1718, the disease appeared, in a malig- nant form, among the Prussian military in Berlin and Pomerania, and extended to the inhabitants. Aiihlha' were a common and an unfavourable symptom. A change usually occurred towards the fourteenth day. Itelai)srs were fatal. Evacuants and diai)horetics, followed by tonics and antiseptics, were the most successful means. 18. MAiinRAAFdetails the history of an epidemic which, In some cases, was mild and remittent; but, most com- monly, of the bilious-adynamic and malignant forms. Ipecacuanha was the most useful medicine. i;i. A bhnilnr visitation took jdace at Nimegucn, in 173G (DEUNiiR). The malignant cases were frequently negroes it generally takestlie place of fevers ; being, in the language of Sydenham, a low fever turned fatal on the third or fourth day, and were contagious. Ipecacuanha, rhubarb, and subsequently, simarouba, were cliiully confided in. 20. Dysentery was epidemic in Plymouth, in 1744 (HuxHAM), in an inflammatory form. Early bleeding, ipecacuanha, rhubarb, and, at the close, opiates, were the chief remedies. 21. It prevailed in Zurich, in 1747, and was attributed to bad water (Gruber). Diaphoretics, emollients, opiates, and tonics were most generally prescribed, 22. It was the most destructive disease in the British army in Holland, in 1748 ; and was acutely inflammatory, often rapidly terminating in gangrene (Grainoer, &c.). Bleeding, emetics, and purgatives were employed. 23. The epidemic, in several parts of France, in 1750, was chiefly of the simply asthenic and malignant forms. Astringents were injurious, evacuants, emollients, and antiseptics beingmostserviceable(MARTEAU and Navier). 24. That which occurred in Hanover (Lentin) was at- tended by a burning heat in the abdomen, without much attendant general fever ; and by foetid or purulent stools. Antimony, rhubarb, mucilages, and, afterwards, sima- rouba or copaiba in the yolk of egg, were usually directed. 25. Strack states that the French army brought with them, and communicated to the inhabitants of the parts of Germany through which they passed, in 1767, dysen- tery of a malignant form ; which was entirely similar to the description I have given of that variety. It was also prevalent in various other quarters of Germany. Women in the puerperal state, and their infants, were also at- tacked. Ipecacuanha, followed by rhubarb, the tartrate of potash, and, lastly, simarouba, was chiefly employed. The too early use of astringents, absorbents, and narcotics were said to have been dangerous. Isolation of the af- fected, and lime, as a disinfectant, were resorted to. 26. Dysentery was epidemic, in the autumvi of 1760, in Gottingen ; and of an inflammatory and asthenic charac- ter, the local inflammatory action being attended bydefi. cient vital power. Theca;cum and rectum were ulcerated and gangrenous. Bleeding, vomits, laxatives, emollients, and antiseptics, with opiates and bark, were principally trusted in (Roederer). 27. According to Grimm, the same epidemic was ob- served in Thuringcn, where it was infectious. A similar treatment to that now stated, with the addition of cam- phor, was adopted. 28. Lecleuc describes the dysentery to which the Tartars of the Ukraine were subject, in consequence of a meagre and indigestible diet, consisting of much salted or smoked fish and meat, and the use of ardent spirits. It seems to have been simply asthenic or malignant ; and to have been most successfully treated by ipecacuanha, rhu- barb, nitre with camphor, opium, mucilaginous clysters ; and, in the last stage, balsam of tolu, &c. Procidentia ani was cured by conveying to the part the vapour from tur- pentine thrown upon burning coals. 29. Dysentery succeeded, in July and August, to the catarrh which prevailed in London in 1762 ; attacked chiefly the poor and children ; and assumed the bilious adynamic form. Bleeding, at the beginning, in the more inflammatory cases ; emetics and diaphoretics ; laxatives and emollient injections ; mucilages and astringents, &c., were successively prescribed (Ct. Baker). 30. This disease also followed catarrh, at Vienna, in the autumn of 1763 (De Mertens) ; and was attributed to cold and moisture consequent upon great heat. Blood- letting was borne by very few. Ipecacuanha, rhubarb, mucilages, and, afterwards, bark, were exhibited. 31. The epidemic in Berne, and adjoining parts, in autumn, 1765, was in all respects the same as that which I have denominated the bilious adynamic, according to the description of Zimmermann ; who states it to have been infectious in circumstances favouring the action of this property ; and that females, far advanced in preg. nancy, in some instances gave birth to infants affected by it. Ipecacuanha emetics, gentle ))urgatives, diluents and emollients, mucilaginous enemata ; subsequently, camo- mile tea and opiates, were chiefly confided in : astrin- gents were injurious. 32. In an epidemic observed, in the same year, by M. Chevssiol, camphor, blisters, sinapisms, dry-cupping, and cinchona, were most beneficial. 33. According to Dr. Sims, the disease was very pre- valent in London in the autvunn of 1768 ; it having suc- ceeded rheumatism, and continued during 176!) and 1770. One form proceeded chiefly from cold, was ushered in by rigors, and required bleeding and iiiecacuanha emetics. The second and most common form prevailed among those who lived on poor diet. The pulse was low, quick, and unequal ; the skin cold ; the face pale and haggard} and the stools firtid and putrid. In this, ipecacuanha, o))ium, astringent bitters, bark, aromatics, and claret, proved most successful. DYSENTERY - in Upon the bowels. It commonly ar/ses, sporn- dically, from cold and moisture — from suppression 34. Malignant dysentery was prevalent in Jamaica, in 1771. Dr. WiiiGHr found antiseptics, especially a satu- rated solution of common salt in lime-juice, talven in aro- matic or sweetened water, most serviceable. 3"). MM. M.vRET, DuRAND, and Caile state, that the epidemic throughout France, in the autumn of 1779, was an illustration of the aphorism of Hippocrates, — " Hieras sicca et aquilonia, ver autem pluviosum et australe ; necesse est fieri febres acutas et dysentarias maxime," — and assumed an inflammatory, bilious, and malignant form ; the second and third being very infectious. In many places, children, females, and the aged were prin- cipally affected. Blood-letting, which was repeated in some cases ; laxatives, with tamarinds and manna ; mu- cilages and emollients, in the form of drink and in clys- ters ; cam|)hor and anodynes, lime, and gum-water ; cinchona, with camphor and the anodyne liquor, were prescribed according to the form and stage of the disease. 36. BiKNSTiEL records that diarrhoea prevailed, in the spring and summer of 1780, on the Rhine ; and was fol- lowed, in autumn, by a violent dysenteric epidemic of a bilious adynamic form — the symptoms being entirely the same, but more intense than I have described them. Evacuations by ipecacuanha and rhubarb, mucilages and diaphoretics, and, towards the close, cascarilla and opium, were confided in. 37. In the years 178.5 and 1786, the disease, in simply asthenic and malignant forms (^ 25. 27.), was general through the Venetian states — chiefly in females and children (Capovilla). Fomentations, mucilaginous in- jections, emollient drinks, ipecacuanha, rhubarb, almond oil, absorbents, and, afterwards, cinchona, wine, opiates, and astringents, were most beneficial. 38. The epidemic in Champagne, especially in the French, Prussian, and Austrian armies, during the au- tumn of 1792, assumed inflammatory, bilious, malignant, and typhoid forms, according to the causes and circum- stances in operation ; and w as remarkably fatal among both men and horses (Chamserl). Bleeciing in some ; ipecacuanha, antimonials, emollients, cinchona, rhubarb, tamarinds, lemonade, &c., were principally employed. 39. The dysentery that prevailed in the army of Italy (Desgenettes) was rarely inflammatory ; but very gene- rally malignant, arising from endemic causes concurring witli extreme fatigue and exposure. Aromatics, vege- table acids, and opiates ; antiseptic and anodyne eneuiata, cinchona,andsimarouba,were most frequently prescribed. 40. HuFELAND states that it was epidemic at Jena, in 1795, in the simply asthenic and malignant forms. He treated it most successfully by ipecacuanha and extract of nux vomica. It was infectious in favourable circura. stances. 41. ScHMiDTMANN States that dysentery was epidemic, through the north of Germany, in 1800; and so pre- valent in the town in which he resided, that very few escaped. It assumed inflammatory, bilious, nervous, and malignant forms, according to circumstances, and the constitution, &c., of those affected. Bleeding in some cases; gentle emetics in others; opium nearly in all; and camphor, decoction of bark, various astringents, tonics, and antiseptics were employed. Arnica was given in the malignant cases, but with little benefit ; and tama- rinds, cream of tartar, manna, or other mild purgatives, were also exhibited. 42. Dysentery, chiefly in the bilious-inflammatory passing into the advTiamic form, was remarkably pre- valent and fatal, at the Cape of Good Hope, in 1804 (LicHTENSTEiN) ; and was often associated with inflam- mation and structural change of the liver. This epidemic was at first very injudiciously treated by stimulants, astrigents, and antispasmodics; and one in four died. The mortality was subsequently reduced vnc half, by means of small doses of calomel and opium, given every hour or two ; sometimes with camphor and rubefacients. 43. This disease was very prevalent in Holland, in 1809, particularly in the British troops composing the Walcheren expedition ; and proceeded chiefly from en- demic causes, and often either followed, or was converted into, intermittent or remittent fever (Davis, Dawson). It was frequently associated with disease of the liver and spleen ; and presented the inflammatory, asthenic, and bilious forms. Bleeding, purgatives, calomel, and sudori- fics were chiefly employed ; but the disease was too gene- rally injudiciously treated. 44. Dysentery became epidemic, in and around Vienna, in autumn, 1809, particularly in the French army ; and assumed, according to circumstances, an inflammatory, bilious, adynamic, typhoid, or malignant form ( Vignes). It often was infectious ; and few of the medical oflicers escaped. Ipecacuanha, opium, emollients, clysters, sina- pisms, and blisters ; camphor, jether, arnica, serpentaria, cinchona, valerian, and aromatics, variously combined, appear to have been chiefly employed. •EpiDliMlCS. 703 of the function of the skin, which is in them a much more important excreting organ than in the 45. The more simple asthenic states of dysentery were prevalent in Flanders, in July, 1810 (Tonnelier) ; and, in the summer of 1811, in various parts of the north of France (Caron). In some villages, nearly all the inha- bitants were attacked the same day. Ipecacuanha, gentle purgatives, rhubarb, calumba, simarouba, mucilaginous clysters, opiates with diaphoretics, warm baths, arnica, aromatics, Hoff.mann's anodyne, &c., were generally employed. Favourable changes occurred between the tenth and fifteenth days. The disease sometimes passed into entiritis, and was occasionally followed by dropsy. 46. Dr. PisANi states, that dysentery of an asthenic kind, but presenting either inflammatory, malignant, or nervous symptoms, was so prevalent in the garrison of Mantua, in 1811 and 1812, that about 1000 cases were received into the hospital. It first appeared in some felons ; from whom it extended to the soldiers in the wards, and by them was conveyed into the barracks. The medical attendants and assistants were attacked ; but those who had no communication with the sick escaped. .Small depletions, ipecacuanha, laxatives, emollients ; with nitre, fomentations, mucilaginous clysters, neutral salts, rhubarb, Hoffmann's anodyne, camphor, and wine, according to the features of the disease, were most em- ployed. Ventilations and|fumigations were also resorted to. 47. In theexpedition to New Orleans, dysentery, owing to cold, moist, and miasmatous air, wet clothing, and the use of foul, brackish water, and fatigue, was the most fatal disease, assuming inflammatory, bilious, asthenic, and malignant forms. Bleeding, emollients, foment- ations, opium, Dover's powder, and very large doses of calomel, appear to have been principally confided in. In fatal cases, the liver was frequently found diseased ; and the colon very slightly ulcerated, but not sphacelated {,Edin. Med. Journ. vol. xii. p. 13G.) 48. Dysentery, although it may not be said to have been epidemic in the strict sense of the word, was the most fatal disease in the British army during the Penin- sular war. It was often connected with intermittents and remittents, and frequently supervened on these and other forms of fever (Sir J. M'Grigor) ; and attacked con. valescents. It assumed inflammatory, bilious, typhoid, or malignant and chronic forms, according to the causes and concurrent circumstances. It was most prevalent and fatal at Ciudad Rodrigo, which was obliged to be made an hospital station for a time ; and where, shortly be- fore, " nearly 20,000 bodies were calculated to have been put into the earth, either in the town or under its walls, in a few months." It was unhealthy, independently ot this circumstance. It was commonly treated by vene- section, in the first stage ; and by the warm bath, full doses of Dover's powder every hour, calomel and opium at night, sulphate of magnesia, in broth, in the morning ■ in the second stage, by demulcents, aromatics, opium, astringents, tonics, and flannel rollers. 49. This disease has been more or less prevalent in some part or other of Ireland, owing to the presence of endemic and even of epidemic causes. During 1817, 1818, and 1819, it was, conjointly with fever, epidemic throughout the island. The seasons were cold and wet ; and, with this cause, famine, unwholesome food, and infection con- curred. It was very often consequent upon the early stage of fever, or it appeared as a crisis of fever, or it occurred during convalescence. It was infectious in cir- cumstances favouring this property ; and presented in- flammatory characters, but often associated with the asthenic diathesis. It was treated chiefly by moderate bleeding, ipecacuanha, the warm bath, opium in doses of four or five grains, calomel with opium, copaiba mixture, and farinaceous diet (Cheyne). .50. It was prevalent in several parts of Ireland, in 1822, at the same time with lo%v fever, owing to scanty and bad food. It commenced with debility, pain about the umbi- licus, mucous dejections, general cachexia, rapid and weak pulse, &c. ; on which the pathognomonic symptoms supervened in an adynamic form. It was very fatal until wholesome and nutritious food was pbtained (Dr. Graves in Trans, of Irish Col. of Phi/s. vol. iv. p. 429.) 51. It was again prevalent in Dublin and the vicinity, in the autumn of 1825, after great heat and drought ; af- fected first the better classes ; sometimes appeared as fever for two or three days, and then passed iuto dysen- tery ; or it occurred during convalescence from fever, and wis infectious (Dr. O'Brien). It was of an asthenic and complicated form ; the skin being of a dirty or dark hue, and harsh to the touch ; and was very generally treated by bleeding, in robust persons, at an early stage ; by the warm bath, and friction of the surface with camphorated oil ; by calomel gr. x., and opium gr. ij., repeated in eight hours, and followed by purgatives, especially castor oil with a few drops of laudanum ; by flannel rollers around the abdomen ; and by Dover's powder, and the repetition of one or more of these means, according to circumstances. 704 DYSENTERY — ITS Type. white races; from insufficient and unwliolesome food ; and, eiidemically from bad water, marsh efHuvia, and animal and vegetable emanations floating in a moist atmosphere. It assumes some one of the asthenic forms, according to the causes ■which produce it, and the circumstances which influence it in its progress. Even when it appears sporadically, it is more liable to become infectious than in Europeans, owing to its passing more readily into a low, malignant, or putrid form, on occasions of imperfect ventilation or crowding of the sick. In such circumstances, it is sometimes quite pestilential in the rapidity ofits dissemination and the extent of its fatality. In its sporadic states, it is frequently nssoc/aterf with rheumatism, or the one passes into the other; both generally arising from the same exciting causes — from cold and moisture. It is also very often complicated with worms, especially the round worm, in the prima via ; these being passed with the stools in the advanced stiige of the more severe and danger- ous cases ; and, in its less severe grades, it some- times assumes intermittent or remittent types. 31. When dysentery attacks the dark races spo- radically, and sometimes, when itseizes Europeans who have resided very long in a warm climate, it frequently commences with chills and much febrile reaction or irritation, the vascular excitement rapidly passing into an adynamic state — into great prostration of the vital and animal actions, and depression of spirits. The pulse is, at first, more or less quick and irritable — sometimes sharp and full ; but it always becomes, in the space of one, two, or three days, small and soft. The rapidity of the change is seldom owing either to the loss of blood from the bowels, or to the quantity of matters evacuated, but rather to these conjoined with the exhaustion produced by the causes of the complaint, by the severity of the tormina, the want of sleep, and by the febrile irritation of the system, in less vigorous constitutions than those of the white race. In this class of patients, flatulence, nausea, sometimes porracious or bilious vomiting, quick small pulse, and occasionally scybalous evacuations, often containing worms, are very 52. The disease was epidemic, in some parts of France, in the aut'.imn .and winter of 1825 (MM. Denoyer, L,e- MERiiER, and BiENVENu); and was, in several places, pro- pagated by the exhalations from the sick and the eva- cuations ; children, females, the weak, ill-fed, the aged, and those living near unhealthy and moist localities, be- ing chiefly attacked. It assumed inflammatory, asthenic, and malignant forms ; and, in several places, the small intestines and stomach were also affected. It was treated chiefly tiy local depletions, opium, repeated application of blisters and demulcents. Tonics and antiseptics were required in the advanced stages and chronic states. .'')3. It again prevailed, in some parts of that kingdom, in October, 1827 ; and was, in several localities, attributed to the water, which aboimded with decayed animal and vegetable matters, animalcula;, &c. (M. Compagnv). It presented either inflammatory, mucous, asthenic, or malignant characters ; and was treated by leeches, opiates, demulcents, and, afterwards, by camphor and cmchona. 54. The disease was epidemic in Glasgow, in the .autumn of 1H27, in a simply asthenic and mild form. Opi.ates, ca- lomel juid opium, ipecacuanha, demulcent enem,ata, blis- ters, warm baths, astringents, and bitter tonics were most serviceable. Blc>eding, unless by leeches, was very seldom required, and was often injurious (Wilson, Bhown, and Maofarlane.) 55. Infectious dysentery, in aScurvy, or Scorbutic Dysentery. — This complication of dysentery was formerly niuch more frequent than at the present day ; particularly in ships on long voyages, before lime-juice was introduced as an antiscorbutic. When, however, the particular concurrence of causes whence it proceeds takes place, and is not counteracted by appropriate means, we must ex- pect this form of the disease to prevail. Its de- structive prevalence among the troops — British and native — employed in the Burmese war ; and its occurrence in a modified form in the Peniten- tiary at Milbank ; prove this position. On occa- sions of long navigation, and the transport of troops ; in campaigns, sieges, or active military services, when there is a scarcity of fresh and wholesome provisions, with the usual causes of dysentery ; this complication sometimes presents itself at the same time as the more malignant states of tiie disease ; and in such circumstances, it is occasionally the prevailing and most destructive form. 40. a. The Causes which usually give rise to the disease are generally the concurrence, or subse- quent operation, of those which produce dysentery, with such as occasion, or have already occasioned, scurvy, — especially living long on salted provi- sions, particularly pork, without a due supply of vegetables or farinaceous substances ; innutritions, deficient, or unwholesome food, or the prolonged use of a fluid and greatly diluted diet ; debility from previous disease ; excessive fatigue ; stagnant and foul water; concentrated marshy exhalations, or night- fogs in low situations and places border- ing on the sea, or banks of rivers or lakes ; confine- ment, or want of exercise in the open air and in the light of day, especially in miasmatous localities ; nostalgia ; anxiety of mind, disappointments, and depression of spirits; and, in some circumstances, particularly in the natives of warm climates, an insufficient supply of salt, or of warm spices and aromatics ; or living on a poor, watery , and vegetable diet. Persons who have had dysentery, are very liable to this complication when subjected to the causes of scurvy. These causes lower the nervous and vital power, contaminate the circulating and secreted fluids, and ultimately deteriorate the vital properties of the soft solids ; favouring serous or sanious exudations from the mucous surfaces, and those capillaries which derive the least support from the cohesion or density of the tissues they supply. Hence result the phenomena of this coniplication, when the weakened bowels are ir- ritated by the morbid secretions poured into them from the collatitious viscera, and from their own glands and mucous surface; or by injurious in- gesta. 41. b. Symptoms. — In this complication, very evident signs of scorbutic cachexia generally pre- cede, for a longer or shorter time, the dysenteric symptoms, which, when they are developed, re- semble the malignant variety above described (§ 27.), excepting that they are not attended by any febrile commotion ; the antecedent conta- mination of the system being much more manifest than in the variety referred to, and symptoms indi- cating increased vascular action being usually absent : the countenance is pale, heavy, dark, de- jected ; in some cases sunk, in others slightly cede- matous ; the abdomen is drawn inwards, or sore upon pressure ; the lower extremities are oedema- tons, with livid patches extending to the hams, fre- quently with ecchymoses, or petechia;, or the break- ing out of old ulcers, and with coldness of the sur- DYSENTERY, CIIROXIC 707 face. The gums are spongy, daik, livid, tumid, and bleed upon the slightest pressure ; the tongue is flabby, often raw, red, or reddish brown. The pulse is small, weak, and soft; and afterwards quick, fieble, and undulating. Sometimes, nearly coetaneously with the above appearances, but more frequently after they have commenced and pro- ceedtid some length, diarrhoea occurs. The eva- cuations soon assume a serous or sanious appear- ance,with mucous, and grunious dark blood, mixed with feculent matters; and they are usually accom- panied by griping and tenesmus, but in a much le:5S degree than in the more simple forms of dysen- tery. J^ecal matters are seldom retained, the stools being free and sometimes copious. The biliary se- cretion is often more or less disordered ; it being either copious or morbid — and then it increases the excoriation of the intestinal mucous surface; or diminished, or altogether obstructed. 'I'he urine is scanty, of a dark muddy appearance, or sanguineous ; and a peculiar foetor is often exhaled from both the alvine and cutaneous excretions. In the more severe cases, or towards the close, there is occasionally vomiting of a bilious, bloody, or dark and grunious fluid, with distressing flatulence, and pain or soreness in the hypochondria. The functions of the stomach are generally disturbed ; and there is much disrelish of salted meat, or of the food on which the patient has been subsisting, with great desire for vegetable acids, vegetables, fruits, warm spices, fresh meat, milk, &c. In the progress of the more dangerous cases, copious efTu- sions of fluid dark blood, with detached portions of the mucous surface, are seen in the dejections ; with coldness and lividity of the surface, leipothy- iiiia, and sometimes with paralysis of the sphiucler atii, and excoriations about the anus. Discolour- ation of the surface, breaking out of old sores, falling out of the teeth, great loss of flesh and prostration of strength, and extreme despondency, further characterise the advanced stage. 42. D, Dysentery is so J requentlii complicated with Win-ms in the prima via, that many writers consider them to predispose to it ; and with much probability. The large round worm is the species most frequently observed ; but others are occasionally seen. The excretion of worms has been viewed by many as an unfavourable symp- tom ; and I believe that it often is so, as it indi- cates a grave affection of the system, or the exten- sion of disease to the small intestines. When dysentery is prevalent among the inhabitants of unhealthy localities, or the natives of hot climates, this complication is observed in a large proportion sometimes in more than one half, of those attacked; and, in the latter class of subjects especially, it is characterised by more or less asthenia, and assumes some one of the forms arranged under this head, according to the nature of the exciting and concur- rent causes. 43. E. The disease may also occur in a person liable to, or affected by, Hce.marrhoids ; especially in those of a plethoric or sanguine constitution, or who are subject to vascular determination to the prostate gland and rectum, from too frequent sexual congress. In such cases, the tenesmus is often the chief symptom ; and, in consequence of the tumefaction of the vessels, and coats of the rectum, a complete retention of fa?cal matters and constant straining are present. The disorder is commonly local, chiefly simple, and inflammatory. and often subsides upon a copious discharge of blood fi'om the internal haemorrhoidal vessels, which takes place after longer or shorter suffering, and frequently oftener than once. In some cases, prolapsus ani occurs, and aggravates the symp- toms. In other respects, this complication differs but little from the mild or inflammatory forms (v^ 12.) described above. 44. F. The association of lihenmatic Symptoms with Dysentery has been so frequently observed, thai many authors (§ 74. e.) have contended for the rheumatic nature ol the disease. The connection of rheumatism with dysentery occurs in one or otiier of the following ways: — 1. Rheumatism may be prevalent either before, or at the same time as, or subsequently to, dysentery : — 2. It niay also precede, accompany, or follow, the bowel disease in the same person. In all these forms the connection has been observed by au- thors, and in some of them by myself, — but chiefly in the slighter or more inflammatory forms which are most frequently occasioned by the same causes as those which produce rheumatism, viz. cold and moisture, or vicissitudes of tempera- ture, with terrestrial emanations : dysentery attacking those who are predisposed to it by the accumulation and stagnation of morbid secretions or acrid fa;cal matters in the digestive viscera, &c. ; and rheumatism, those who possess the rheu- matic diathesis, or in whom the morbid secretions are not set loose, or the balance of circulation and exhalation is not thrown in upon the intestinal canal. Conformably with this view, it will be evident that both affections may occasionally co- exist, and that either may supervene upon the disappearance of the other, especially when the above causes continue in operation. 45. V. Sub-acute AND Chronic Dysentery, AND Chkomc Diarrhcea. — i. Dysentery may occur primarily in the mild and sub-acute form de- scribed above (§.12.); and yet, in consequence of neglect, or of the continued exposure of the patient to its endemic or other causes, it may run on to a very chronic duration, or assume the form of chronic diarrhcea or lientery. It may lapse into either cf these foims from the acute, in a gradual manner ; or either of them may commence as diarrhoea ; the characters of sub-acute or chronic dysentery appearing gradually, or more or less suddenly, in their progress. When the disease arises chiefly from malaiia or other endemiccauses ; or follows agues, remittents, and diseases of the liver or spleen ; it more generally assumes a sub- -acute and chronic form, or passes into chronic diarrhoea, than in other circumstances. In other respects, the causes of the chronic states of dysen- tery, even when occurring primarily, are the same as those that produce the acute forms. These states, however, are oftener met with in those who have had disorders of the stomach, liver, or bowels, in long residents in warm climates or unhealthy localities, and in the natives of such places, than in others ; and they are more frequently compli- cated witli diseases of the liver, spleen, omentum, pancreas, &c. in persons thus circumstanced. In most cases these states of the disease differ from the acute, chiefly in the greater mildness of the symptoms, in the absence of a few of the more vio- lent phenomena, and in the much more uncon- trollable and persi-^tent nature of such as are pre- sent. Besides following upon, or being rather pro- Zz 2 708 DYSENTERY, CHRONIC — Complicatioks or. longations of, the acute, they may be the sequela of any of the forms of diarrhoea, of common or pestilential cholera, and of fevers that have been neglected in their early stages, or improperly treated. When it occurs primarily, which is com- paratively rare, it may, after a considerable time, assume the acute characters. 46. a. The Symptoms of chronic dysentery differ chiefly in degree from those characterising the more simple inflammatory form of the acute dis- ease (§ 12, 13.), The fever of the latter generally subsides, especially during the day ; and the ap- petite and strength frequently return for a time. Tormina and tenesmus either altogether disappear, or are present in a slight degree ; but sharp, griping pains, and soreness in the abdomen, are often complained of. The stools are more or less serous, mucous, muco-puriform, or gelatinous ; contain some fluid faaculent matter, or ill-digested substances ; and vary from a white albuminous, or white of egg, appearance, to a dark olive green or greenish black ; being sometimes marbled, or one day like chalk and water, and on another like a dark jelly, or the green fat of a turtle. Blood is often either so intimately mixed with the evacua- tion as to give it an uniform brick-red colour, oris quite distinct and fluid, or partially coagulated. The puriform or muco-puriform matter generally exists as small streaks ; but this matter may not be detected, although ulceration of the large bowels is present. The discharges are more copious than in acute dysentery, but much less frequent ; being commonly from three or four to ten or twelve in the twenty-four hours. The pulse is not accelerated in the early part of the day, but it usually becomes quicker towards even- ing ; and is feeble, unequal, and sometimes slow, or intermitting.- The tongue is often dark red or glossy; the countenance sunk .and anxious ; the surface cold, lurid, dirty, hairah, dry, or even scaly ; the body emaciated ; ;.and the abdomen hard, tumid, not very painful &n pressure, except- ing about the caecum or sigmoid flexure of the colon, with griping pains in the course of the colon. In the more advanced stages of the dis- ease, the feet and legs become oedematous; the lips and surface exsanguineous ; the surface and the evacuations exhale a peculiar, offensive, and sub-acid odour; sometimes jaundice or ascites supervenes, and the patient at last sinks under the irritation and hectic symptoms, after many weeks or even months of continued or remittent suffering. 47. ^. Chronic dysentery sometimes assumes a modified character, which is essentially the same as the ulcerated and lienteric forms of DiARRHfEA (§ 11, 12.). In these cases, the mucous follicles and coat of the small, as well as of the large, intestines are affected ; but in warm climates and unhealthy situations, disease extends much further, and generally comprises lesions either of the liver, spleen, pancreas, mesenteric glands, or of two or more of these. Repeated attacks of dysentery, in these places, frequently terminate in chronic dysenteric diarrhoea in a simple or complicated state ; and 1 have seen cases where it has continued for years, with slight remissions ; the stools being lienteric, copious, and crude, and the appetite ravenous. In some cases of this protracted state of disease, especially w-herc the stools are gleety or mucous, and voided with tenesmus, but without tormina, the rectum only is affected ; one or more ulcers being seated at a greater or less distance from the anus. The sub-acute and chronic forms are not infrequent in children, are in them often accom- panied by procidentia ani, and are generally in- flammatory, particularly when occurring sporadi- cally. Chronic dysentery in the dark races assumes the appearance of a gleety discharge from the bowels, and depends upon deficient tone of the vessels and follicles of the intestinal mucous surface, rather than upon inflammatory action. 48. ii. Complications of Chronic Dysentery are most frequent in countries within the tropics, and in places abounding with terrestrial emanations. (H)When chronic dysentery is complicated with disease of the /iuej', the symptoms often approach those of diarrhoea ; and the hepatic affection is generally latent, insidious, and also chronic ; the internal structure of the organ being chiefly im- plicated. In this state of disease, the evacuations are frequent ; attended by griping pains about the umbilicus ; and are of a dark green colour, indicating a morbid state of the bile ; or of a pale clay colour, showing torpor of the liver or obstruction of the ducts. In some cases, they are dirty, watery, and offensive ; and in others, of a whitish appearance : whence has arisen the term " white Jiux." These last seem like chalk or lime mixed in a dirty fluid, or intermediate between this and whites of eggs ; occasionally they resemble cream or yeast ; and they are often slimy, and contain broken-down, clay -coloured faeces, and half-digested substances. These sometimes continue for a long time ; or they change to a darker colour, apparently from a par- tial discharge of bile or the medicines takeu ; and afterwards return to their former hue. This state of the dejections is evidently owing to the obstruction of bile, to the consequent impair- ment of chylifaction, and to the increased and morbid secretion of the follicular glands and mucous surface. In addition to these the patient complains of tightness, fulness, or oppression at the epigastrium and lower part of the thorax, par- ticularly on the right side ; and of slight evening exacerbations of fever. The eyes have fre- quently a pearly appearance ; and the countenance is livid or sallow. Thiscomphcation is often caused by the excessive use of spirituous and other intox- icating liquors ; and by the concurrence of the causes of hepatitis with those of dysentery ; and it frequently is consequent upon hepatitis; upon intermittent, remittent, or continued fevers ; and upon the acute disease, when it arises from endemic causes. The dysenteric symptoms are manifestly occasioned or perpetuated either by a morbid condition, or by deficiency, or total ob- struction, of bile: this secretion being indispensa- ble to the due performance of the assimilating processes, and to the healthy state of the mucous surfaces and follicles. In other cases of this com- plication, the enlargement of the liver, or the symp- toms of hepatic disease, are less equivocal, and approach more nearly those stated above ($35.). (See, also, Liver — Abscess in.) 49. (a) — a. When chronic dysentery follows the diseases just now mentioned, or the prolonged or intense operation of endemic causes, it may become associated with scorbutic symptoms ; or DYSENTERY — Terminations and Prognosis of. 709 dysentery, in a sub-acute or chronic form, may be consequent upon scurvy, as in the scorbutic complication already described (§ 39. )• '^'he chronic states of the disease may also asso- ciate with them changes of other viscera beside those of the liver. In the hepatic complication, especially in hot countries, the internal surface of the small intestines is very frequently also in- flamed or ulcerated, and the spleeu, pancreas, me- senteric glands, or omentum, may be affected in addition. When chronic dysentery follows pe- riodic fevers, the spleen and mesenteric glands seldom are altogether sound. I have never wit- nessed an inspection of a case, either in temperate or in warm climates, that did not present lesions in one or more of these organs, beside those in the bowels ; but some of these were manifestly consequences of the disease, and not associated with its early stages. With the exception of the complications with disease of the liver and spleen, the exact pathological state can seldom be ascer- tained during life. When the patient is very much emaciated, enlargement of the pancreas or of the mesenteric glands may be suspected, from hardness and fulness in the abdomen — usually between the pit of the stomach and umbilicus ; and from aching pains in the back. — 0. In the dark races, the complication of chronic dysentery or diarrhoea with disease of the liver is very rare ; but those with enlargement of the spleen and of the mesenteric glands, with icarins, and with rheumatism, — especially the last two, — are very common. — y. In children, the association of the complaint with enlargement of the mesenteric glands, or with worms, is not infrequent ; and the complication of the slighter or sub-acute states with bronchitis is sometimes also met with among them. 50. VI. Terminations and Prognosis. — i. The Acute varieties of the disease may terminate — 1st, in a return to health; — 2d, in periodic or continued fever, or some visceral disease ; — 3d, in ulceration, and the extension of inflammatory action to the peritoneum or perforation of the bowels ; — 4th, in sloughing of the internal tunics, and gangrene of portions of the intestinal tissues ; — and, 5th, after having assumed a chronic form, in con- striction of the colon, and other organic lesions ; or in gradual exhaustion of the powers of the con- stitution. — (a) A favourable issue may be expect- ed, if the stools become less frequent, more copious and feculent, and the biliary secretion more natu- ral ; if the tormina and tenesmus abate, and the patient be less disturbed in the night ; if the abdo- men be less painful, especially on pressure; and if tumefaction or tension be not present ; if the febrile phenomena be alleviated, the pulse, tongue, and skin become more natural, between the sixth and seventeenth days in the asthenic forms ; and if the symptoms indicating the other termina- tions be not observed. 51. (6) When the disease is suddenly arrested, by astringents, or otherwise injudiciously treated, particularly when it arises from endemic and epi- demic causes, it may pass into ague, remittent or continued lever ; or into inflammation and abscess of the liver, or into peritonitis or enteritis. These results evidently arise from the stoppage of the dis- charge of morbid matters that require elimination from the system, and the consequent irritation these matters produce upon the nervous and circulating systems, or upon the organs chiefly concerned in excreting them. But, on some occasions, these maladies may supervene, without any aid from the practitioner. When dysentery occurs in the puerperal state, particularly soon after delivery (and, when the disease is epidemic, females thus circumstanced are very liable to it), it is very apt to pass into peritonitis ; or to be followed by efliision into the peritoneum, and even by inflam- mation of the womb. In 1832, 'I treated a case of sporadic dysentery iu a lady who had not been pregnant for several years. It was followed by hysteritis ; which, in its turn, was followed by phlegmasia dolens, first in one thigh, and then in the other. She is now in good health. In some instances, particularly in hot climates and in young children, introsusception of portions of the intestines may take place, and give rise to grumous or faeculent vomitings, and all the symptoms of ileus. I have sometimes seen children seized, during dysenteric complaints, with convulsions, obstinate vomiting, distressing colicky pains in the abdomen, and stupor, followed by various sympa- thetic phenomena, and death ; and, upon dissec- tion, the only lesion, besides signs of irritation in the digestive mucous surface, has been invagi- nation of more or IcrS of the intestinal tube, and the usual consequences of this occurrence. In a case of this kind, which was supposed to have died of acute hydrocephalus by the medical attendant, and which was opened by Mr. Alcock in my presence, the greater part of the ilium had passed into the caecum ; and the caecum', with its contents, into the transverse arch of the colon. 52, (c) If a favourable change take not place, in the more sthenic varieties, before the twenty- fourth day ; and in the asthenic states, previously to the eighteenth or nineteenth days; or if only a partial change be observed ; the disease usually either passes into the chronic form, or assumes still more severe characters. 53. (d) An unfavourable termination may be lookedfor, if the foregoing symptoms ($50.) be ag- gravated ; or if no impression have been made upon the complaint, about the time stated above ; or be- tween the ninth and fourteenth days in the severe asthenic forms : if the abdomen become enlarged, tense, or tender, or preternaturally hot, especially about the umbilicus ; or if pain increase rapidly, and be constant and fixed in one part ; if the watery discharges, loss of blood, or the harassing fre- quency of the calls to stool, particularly at night, sink the powers of life, or be attended by cramps in the lower extremities, leipothymia, or syncope ; if the face be anxious, or Hippocratic, and the body emaciated ; if stupor, delirium, picking of the bed-clothes, starlings of the tendons, super- vene ; if the extremities or surface be discoloured, or the former be cold or clammy, or the latter of a lurid hue, or exhale a cadaverous or an offensive odour ; if drinking be followed by tormina and a desire to go to stool ; if the tongue be raw, glossy, or very dry, and dark red ; or dark sordes collect about the teeth, or aphthae appear in the mouth or on the lips ; if the pulse be very weak, irregular, oV intermittent, or rise in frequency to upwards of 120; if respiration be rapid, laboured, or difficult; if the breath be foetid and cold ; if the matters vomited be offensive or grumous ; if ecchymoses or sphacelating ulcers appear on the surface ; if sight or hearing be partially lost; if paralysis of Z z3 710 DYSENTERY-— Morbid ArpEAnASCfiS the sphincter aui take place, and the stools be involuntary or grumous, or like washings of meat, cadaverous, or mixed with small black coagula,or with light muco'puriform streaks, and especially if they contain sphacelated portions of the mucous coat ; if the stomach be so irritable as to reject whatever is taken 5 and if complete strangury or suppression of urine take place. Hiccup is not an unfavourable symptom, if it occur early in the disease ; but when it comes on at an ailvanced stage, it is often an indication of the extension of the disease to the peritoneum, or of the sphacelation of the mucous membrane. 54. a. Ulceration may take place early, even in the mildest forms of the disease, without causing any decided change. Most frequently, however, it is attended by aggravation o the symptoms; the stools passing from a mucous to a serous, sero-puriform, or grumous state. At its commencement, especially in the less inflam- matory cases, little fixed or constant pain is felt ; but as it advances through the coats, pain, in some form, is experienced. At an advanced period, especially when sphacelating ulcers exist, the stools become dark brown, muddy, or watery, and smell like washings of meat. The blood discharged is often of a darker colour, and some- times mixed either with an ichorous sanies, or, in the more sub-acute or chronic cases, with puru- lent streaks. When the blood is in large quan- tity, and unmixed with the rest of the dejection, ulceration low in the canal may be inferred. 55. (3. Extension of inflammatory action to the peritoneum, or the omentum, or to the mesentery, is generally owing to ulceration, and may occur either previously, or subsequently, to pofonition of the intestinal parietes. If great increase of pain, with heat, fulness, and tension of the abdomen, distressing anxiety, restlessness, inability to sleep, frequent retchings, and copious discharges, per anum, of morbid secretions and fajcal matters which had been retainefl while the spasmodic action of the bowel was in full force, supervene at an advanced stage, extension of inflammation to the peritoneal coverings may be inferred ; and if these symptoms take place suddenly, and are quickly followed by very painful meteorismus, hiccup, cold sweats, sunk countenance, jactita- tion or delirium, rapid and laborious breathing, a very wiry, or small, irregular, and weak pulse, cold extremities, &c., they maybe imputed to per- foration of the bowel. Inflammation may also extend, generally with ulceration of the tunics, from the Cfficum to the appendix vermiformis, and thence to the peritoneum ; or to the external con- necting cellular tissue, giving rise to abscesses in the right iliac fossa, that may open either into the caecum, or externally. (See C«cu.\i, § 19.21.) A case of this description was treated by 11, e in a warm climate, in 1817. It had been neglected in its early stages, and a very large abscess had formed and burst into the ca;cum ; extensive ulceration and sphacelation of this part being found on dis- section. 56. y. Gangrene seldom proceeds, even in the most severe cases, further than the mucous and submucous tissues; excepting in warm cllmatis, where sloughing ulcers, somelimes of large size, penetrate all or most of the coats. This change is commonly occasioned by the extension of the inflammatory action to the tissues underneath, and the consequent detachment and death oi thd portion of this coat covering the parts particularly afl^ected ; as the cuticle is detached by the effusion ot fluid underneath it, when the vascular tissue of the skin is acutely inflamed. In such cases, portions of the partially sphacelaled membrane hang loose in the canal, whilst the more external tunics are altered in colour, and softened. The symptoms indicating the commencement of spha- celation of portions of the mucous coat, are those detailed in the preceding paragraph, followed by leipotliymia, or syncope when the patient is raised ; a sudden remission of the tormina, abdominal pain or heat; singultus; cold, shrunk, and bedewed countenance and extremities ; sense of cold in the abdomen ; involuntary motions ; lividity of the lips and cheeks ; partial convulsive movements ; extreme prostration, and the supine posture ; glassy, inexpressive state of the eyes ; cadaverous or very foetid smell from the evacuations, and the body ■ and, lastly, insensibility. 57. ii, Tlie Chronic forms, besides terminating in ulceration and extension of inflammatory action to the serous surfaces, often superinduce thickening of the coats and stricture, in some parts of the co- lon or rectum, or of both, frequently with dilatation of the portion above the contraction ; ultimately terminating, in some instances, in rupture of the more dilated and attenuated or ulcerated part, and effusion of the intestinal contents info the perito- neal cavity. In some cases, ascites comes on, or cedema of the lower extremities, or both, and the patient sinks in an exhausted and dropsical state. 58. VII. Appearances on Dissection vary with the form of the disease. In the inflammatory varieties, they are limited to the large bowels, and parts immediately connected with them ; but in the asthenic and complicated states, especially in the scorbutic, the changes are much more exten- sive.— a. Upon opening the abdomen, the (wne^itMHi is sometimes adherent to the superficial convolu- tions of intestines, or to the brim of the pelvis, or to some part of the abdominal parietes, but it is oftener drawn up to the arch of the colon, or to one side. The bowels, externally, present meiely changes of capacity and colour, unless partial or general peritonitis have supervened. 1 hey are commonly distended by flatus, and variously coloured in different cases or parts, and frecjuently without the external colour having reference to the state of internal change. The large bowels feel in one place thick and doughy, in another thin and membranous. The colon is sometimes dis- placed or elongated, from relaxation of the lon- gitudinal bundles of fibres : the transverse arch hanging down in a loop, or the sigmoid flexure passing over to the right side (Anneslev, &c.). Contractions of a considerable part of the colon are frequent, and sometimes the constrictions resemble those made by a ligature, — ihe parts above being distended and thinned ; they are firm and almost cartilaginous in some chronic cases, and sealed chiefly about the sigmoid flexure and arch of the colon, and more rarely in the rectum. Adhesions of the peritoneal surface of the colon to the adjoining parts, and efl'usions of lym])h, or of scrum, into theperitune;il cavity, aho, arc often seen. 60. h. Internally, the bowels present extensive and numerous changes. The villous coat is dif- ferently shaded in different parts ; and varies DYSENTERY — Diagnosis. 711 from n pale grey or sea-gieen to a botlle-green or violet colour ; or from a pale pink to a bright red, or reddish brown, shaded with black. In some, the most opposite colours pass abruptly into one another. Large portions of coagulable lymph are sometimes found partially adherent on tliis surface. Eicoiialiotis of the mucous epi- thelium, the excoriated parts presenting a choco- late tint ; detachment of portions of the villous coat, sinuosities existing underneath the parts in- tervening ; softening of the internal tunics ; ulcer- ations, in all the forms described in the article Digestive Canal (§ 36 — 40.) ; and sphacelation of portions of the mucous and submucous tis- sues ; are the most frequent appearances, and are met with, in various grades, in all the forms of the disease. The tttcers are either small, nume- rous, and clustered, or large, distinct, and few. They are often dark, extensive, and sloughy ; the parts in which they are seated, as well as those surrounding them, being softened, or very easily torn, particularly in the asthenic varieties, and in the scorbutic complication. They are frequently elevated on a thickened or hardened base, in the more chronic cases (as described in § 36. e. of the article now referred to) : or they present exuberant fungous or fleshy granulations on their surfaces. In some instances, their centres are very dark or blackish (Pringle, Monho, &c.). Deficient vital cohesion of the coats of the bowels, they being occasionally torn as easily as wetted paper, is very common in the more asthenic varieties. In prolonged inflammatory cases, thickening and almost cartilaginous induration of a considerable part of the colon are not infrequent, the thickened or indurated portion being also contracted in calibre. In such cases, the part above the con- tractions are greatly distended, the coats being thinned, ulcerated, and even lacerated; the con- tents of the bowel having passed into the peritoneal cavity, and occasioned rapidly fatal peritonitis. The ccEcum is extensively disorganised ; and the parts suriounding it are, in some cases, inflamed, or in a state of suppuration, or sphacelation (An- neslev and myself). The appendix vermiformis is also occasionally inflamed and ulcerated. The small intestines are very often inflamed, especially in the internal surface ; and ulcerated in their lowest third, particularly in the asthenic varieties, and in the hepatic and scorbutic complications. In some instances, the ileo-ceecal valve having been ulcerated, extensive intus-susception of the ilium takes place into the cajcum and colon. In- vaginations occur also in other portions of the intestinal tube, especially the ilium. (See Di- gestive Canal, § 18 — 48.) 60. c. The collatitio^is viscera are generally dis- eased in the asthenic and complicated states. The mesentery and mesocolon are more vascular than usual ; and the glands of the former are inflamed or enlarged, more readily suppurated, especially in situations corresponding to large ulcers. A dirty- coloured fluid is occasionally affused in the peri- toneal cavity in malignant or typhoid cases ; and sometimes, also, in the thoracic cavities. The spleen is either enlarged or softened in the asthenic varieties, or when the disease is consequent upon periodic lever ; and the liver is congested, in- flamed, suppurated, or otherwise disorganised, in the hepatic and scorbutic complications. Con- gestion of the portal vcsiels is very common in both the asthenic and sthenic forms. Injection antl changes of colour of the internal surface of the sto7nuch and duodenum, and accumulations of viscid thick bile in the gall-bladder, are frequently observed. The pancreas is sometimes enlarged, and presses upon the common duct. The urinary bladder is occasionally inflamed about its neck, or in its external tunics ; and the prostate somewhat enlarged. In the dysentery, recently epidemic in Ireland, Dr. O'Brien found the liver diseased in one half the dissections ; the spleen in one fourth ; the small intestines in two tliirds ; and the colon and rectum in all. In chronic cases, in the Brit- ish army in the Peninsula, the spleen, liver, pancreas, mesenteric glands, &c., or any two or all of these, were more or less diseased (Sir J. RI'Grigor, Dr. Ferguson, Dr. Somers, Dr, Forbes, iStc). 61 . rf. In the most malignant varieties, and in the scorbutic complication, the internal surface of the whole digestive tube is of a livid, purple, or dark colour ; with patches of ecchymoses, excoriation, ulceration, and sphacelation. The villous coat, particularly in the seat of ecchymoses, may rea- dily be rubbed off; and the ulcers have a foul and dark appearance. The liver is sometimes large, soft, and spongy ; at others, pale and soft, especially in cases where the loss of blood has been very large. The spleen is sometimes so softened as to appear semifluid or sphacelated. The heart is often partially softened or flaccid ; the peri- cardium and pleural cavities containing a bloody, dark, and dirty serum. The lungs are often con- gested ; the bronchial lining dark, or ecchymosed ; and the blood \u all the large vessels is semifluid, black, and of a very loose texture. Indeed, the vital cohesion of all the tissues is, in these forms of the disease especially, more or less lost. In the dark races, the digestive mucous surface is usually paler and softer than natural, or dis- coloured or sphacelated; the follicles enlarged or ulcerated ; the coats of the caecum and colon very easily torn ; the liver pale, soft, and small ; the spleen enlarged and softened ; the pancreas occa- sionally enlarged, and the mesenteric glands always enlarged, or otherwise diseased. 62. VIII. Diagnosis. — Dysentery often very nearly approaches either fever, diarrhea, cholera, or colic; and it frequently supervenes upon one or other of these diseases ; fever, diarrhoea, &c. almost insensibly passing into it. — (a) Fever, especially some of its endemic and epidemic forms, sometimes assumes an enteric character, closely resembling the asthenic states of dysentery, particularly as respects both the frequency and character of the evacuations ; a circumstance which led Syden- ham, Blane, Jackson, and others, to consider the latter as fever turned in upon the bowels. Although, in some cases, the one may in- sensibly pass into the other, yet idiopathic fever, with predominant enteric aftection, will be dis- tinguished from dysentery by the more marked constitutional afTection before the bowels become disordered, by the much less pain and difticulty ir^ the excretion of urine, by the absence of severe tormina and straining, and by a more faeculent state of the evacuations, than in any of the forms of the latter disease. It has been sup- posed by many writers, that the more asthenic or malignant states are mere associations of dysentery with adynamic or typhoid fever : but, instead of Z z 4 712 DYSENTERY — Diagnosis. viewing these states as complications of two ' diseases distinct from each other in their nature and seat, it would be more philosophic to consider them as coexistent results of the operation of cer- tain concurring causes upon the economy ; which causes, according to their natures, and the pre- disposition and habits of the affected, induce effects partaking more or less of the characters of either fever or dysentery. In most instances, where the disease seems to have been thus mixed, animal emanations, a close and impure air, or other de- pressing and contaminating agents, acting either internally or externally, and aided by epidemic influence, have manifestly existed. But it is rather to the presence of those agents, in such a form as to act upon the excreting viscera and prima via, or in such combinations as to deter- mine their effects to this quarter, assisted by ante- cedent disorder or predisposition of the digestive and excreting viscera, that the adynamic states of dysentery are to be imputed. Thus an impure or infected air — either short of inducing, or even sufficient to induce, the worst forms of fever — may produce a malignant or typhoid state of dy- sentery, when aided by unwholesome water or diet ; and this latter cause, unassisted by the former, may also occasion the same disease in a similar or a less severe form, in those greatly predisposed. Hence according to the nature and concurrence of causes, will effects upon the frame be induced : which will insensibly approach fever on the one hand, and the most simple and perfect dysentery on the other. 63. This modification of the disease, with the nature of the disposing and exciting causes, is further illustrated by the intermitting and rheu- matic characters occasionally assumed by it in both its endemic and its epidemic states of pre- valence. In localities where marsh miasmata abound, and where the water or the food are unwholesome, or other causes of dysentery pre- vail, this disease often either assumes, in both its acute and chronic forms, in warm climates espe- cially, an intermittent or remittent type — most frequently the latter — or supervenes upon or passes into these, or into continued fever. Of this I have seen numerous instances ; and similar facts have been recorded by nearly all the writers on the diseases prevalent in the armies engaged in the last wars. In certain of its epidemics, espe- cially those which prevad in cold and moist sea- sons, dysentery sometimes follows, or is otherwise connected with, catarrhal affections, as observed in those recorded by Strom, G. Baker, and Neumann ; and it occasionally is complicated with rheumatism, particularly in one or more of the joints or extremities, the amelioration of the one affection being often followed by aggravation «f the other. The association of dysentery and rheumatism, and their conversion one into the other, are stated by Dr. Sims to have been re- markable, in the epidemic in London, during 1769 and 1770. A somewhat earlier and a moie distin- guished writer, — Dr. Akensiuk, — likewise alludes to this subject, in a mannei' worthy of the most philosophic of our poet", and observes ; — " No- vimus prajterea, eadem tcmpcstatc et ob easdem causas rheumatismum (juoque fre(iuenlissimum fieri ; " whilst he states, in another place, that, although these diseases prevailed separately, they wore, owing to the similarity of their causes, often coexistent, or consequent the one on the Other ' a circumstance not confined to this climate, and occasionally observed in certain seasons, but also remarked amongst the natives of intertropical regions. 64. (b) Diarrhoea is so very closely allied to dysentery, that they may be viewed as varieties or grades of the same morbid actions. Nosologists in their rage for drawing distinctions, which exist only in extreme cases have wittingly overlooked the fact, that between both diseases, there often scarcely exists a shade of difference ; whilst, be- tween the extremes, the distinction is sufficiently wide, and easily made. Dysentery frequently follows simple diarrhoea, or diarrhoea, attended by fever ; and is itself also followed by diarrhoea, in some one or other of the forms in which it is described : and both diseases may be merely the sensible phenomena either of the irruption and excretion of morbid secretions, or of inflammatory irritation, affecting somewhat different portions of the alimentary canal. Yet, although thus very closely allied in nature and form, they are very often distinct, as respects — 1st, the seat of dis- ease ; 2d, the affection of the system generally ; and, 3d, the symptoms resulting from each. — a. Diarrhaa is generally sporadic, and never in- fectious ; — S. It occurs at any season, and is more commonly a chronic disease than dysentery ; — y. It is usually neither preceded nor attended by fever ; — J. It is unaccompanied by severe tormina and straining; — e. In it, the evacuations are more or less abundant, and not bloody ; — ^. It is seldom attended by vomiting or heat of skin, or by early depression of the powers of life, as observed in dysentery : — w. The history of the disorder, par- ticularly in relation to its causes and constitutional disturbance, will point out many points of dis- similarity between it and dysentery. 65. (c) Cholera differs from dysentery, — a. In appearmg only during the latter part of summer, and in autumn ; — ^. It is a most acute disease, running its course in from one to two or three days ; — -y. It is unattended by straining, or blood in the stools ; — J. In it, the stools are abundant, very fre- quent, and the vomiting almost constant; — £. Spasms of the legs and abdominal muscles, cha- racterising cholera, are seldom met with in dysentery, excepting towards an unfavourable termination of the super-acute cases. It should not however, be overlooked, that cholera some- times runs into dysentery, evidently owing to the irritation excited in the large bowels by the morbid secretions poured into the digestive canal. 66. (d) Dysentery can hardly be confounded with colic, if due attention be paid to the history of the case. — C^dic from lead, bilious colic, and ileus from hardened substances in the bowels, or from invagination, sometimes present features of resemblance to dysentery ; particularly the violent pains in the abdomen, vomiting, and occasionally abortive eflx)rts at evacuation, with very scanty watery or bloody discharges. But in these, there is neither antecedent diarrhoea, nor attendant fever, nor frequent calls to stool, nor tenesmus, nor any considerable evacuation in the aggregate, nor fixed pain in the hypogastrium, nor scanty, dif- ficult, and painful excretion of urine, or tenesmus vesicalis, — all which characterise dysentery. In these, also, vomiting is much more urgent, some- times becoming faiculent, and the paroyxsms of DYSENTERY — Pathological Inferences respecting. 713 puin more violent, particularly around the um- bilicus, than in this disease ; the matters received into the stomach being ejected from it without exciting either a desire Tor stool, or tenesmus. It should, hovv^ever, be kept in recollection, that the bilious or endemic colic of warm climates (see Colic, § 16.) in some cases differs but little from dysentery, and that chiefly as respects the more complete retention of the morbid secretions and excretions, as will be seen from the history of both diseases. 67. (e) Internal H) The complication with disease of the mesenteric glands frequently cannot be distin- guislied from that with chronic change in the liver; but, when tiie stools are lienteric, and the abdomen hard and tumid, the former association may be inferred, although the hepatic complication may also be present ; the means now recom- mended being equally appropriate to both. I have seen benefit derived, in some cases of the mesenteric complication, occurring in children, from liquor potasscc, or Ur.indish's alkaline solu- tion, in tonic infusions, with syrupus papaveris or tinctura opii ; and from the chlorate of potassa with Dover's powder, a terebinthinate draught and enema being administered every third or fourth day. More recently, the ioduretted solu- tion of the iodide of potassium, with very small doses of laudanum, or the iodide of mercury in minute quantities, has also been prescribed with advantage, especially when assisted by the warm bath, and some one of tiie liniments or other external applications enumerated above. If the patient, however, complain of tormina, or if the stools be bloody, the daily application to the abdo- men of some one of the ointments containing the preparations of iixiixe (F. 766. et seq.) willbepre- feral)le to the internal exhibition of this substance. In this class of subjects, change to a dry and pure air, and the prolonged use of these medicines in very small doses, are requisite to success. I'he same treatment may be also employed in the hepatic complication. But in the acute maladies of the liver, the preparations of iodine are often injurious. 113. (c) The complication with disease of the pancreas is even more difficult to be ascertained than that with mesenteric enlargement ; but, even when confidently inferred, it does not seem to re- quire a difl'erent treatment from that now re- commended.— In the splenic association, nemly similar measures to those already stated aie also applicable. The preparations of bark ; the sul- phate of quinine, and of the metals ; and stomachic purgatives ; are more especially indicated in it ; particulai-ly when aided by emollient clysters, and the external applications described above (§ 109.). 114. (rf) Chronic dysentery in the dark races, being characterised by relaxation of the mucous surface of the large bowels, and an adynamic state of the system, and differing not materially from chronic diarrhoea, will be most successfully treated by tonics conjoined with astringents, ab- sorbents, aromatics, and hot spices ; by the warm bath ; by injections with lime water and other astringents ; and occasional stomachic or warm purgatives, in order to prevent fa;cal matters from collecting. Its principal complications, in these races, are with enlargement of the spleen, with worms, arid with mesenteric disease ; the two latter especially. In the association with enlargement of the spleen, the sulphate of iron or other chaly- OF CONTINGENT ClIANOIS IN. 725 bcatcs, with rhubarb, and occasionally stoniacln'c purgatives, are the most eflicacious medicines. To the other complications, the treatment already pre- scribed {§ 97. 112.) is also appropriate. (See also DiAHHHUiA — Trcalment of, in the Dark Races, § 37.) 115. iii. Treatment of crnTAiN States and CONTINGENT Changes. — A. When dysentery is prevalent, a recognition of the early symptoms, particularly these premonitory of an attack, as sunk pale countenance, griping pains with bor- borygmi, and irregular chills or horiipilations, witli or without diarrhoea or tenesmus, should lead to the adoption of means which will often ward off the disease or cut it short. Of these, the most efficacious is an ipecacuanha emetic; which may even be repeated until its free oper- ation is procured, followed by a single full dose of calomel ; and that, in two or three hours, by a purging draught, and a laxative enema. AJter these, a warm bath, the patient being well rubbed upon coming out of it, and placed between warm blankets ; and pills with camphor, ipecacuanha, and three or four grains of opium, repeated subse- quently in smaller doses ; will frequently remove all disorder. This plan, if employed sufficiently early, is equally applicable to all the varieties of the disease. 116. B. — (a) Extreme irritability, want of sleep, and distress at night, during the most acute attacks, often exhaus^t the strength of the patient, and re(|uire either very large doses of opium, or opiate suppositories, or small opiate injections, especially after coniing out of a tepid or warm bath — a tepid bath if there be much heat of skin or attendant sthenic diathesis, and a waim bath if the con- stitutional affection be of the asthenic kind. — (6) Excessive iiiifuti'du in the rectum, and dysuria, may be alleviated by tlie treatment directed above (§ 84, 85.) and by small injections — from three to five ounces — containing either opium, or the extract of hyoscyamus, or the extract of bella- donna, or i\ 137.; recollecting, however, that this latter will often produce much disorder, if too freely employed. In a case where I prescribed it, in 1826, with remarkable benefit, it afl'ected the head, and caused a most copious scarlet erup- tion on the skin. — (c) Very copious effusions of blood alarm the patient ; and although they fre- quently relieve the sthenic forms, yet, if often re- peated, or occurring too largely in the asthenic varieties, they require to be moderated, or arrested. . In the former states, general or local depletions will be the best means of removing them ; but in the latter, or when they sink the vital energy, the terebinthinated draught and injection prescribed above (^90.), or the acetate of lead in draughts with acetic acid and laudanum, or in enemata ; or the tincture of the sesqui-chloride of iron in the infusion of quassia, by the mouth, or in clysters; or lime juice and opium, similarly prescribed; will generally prevent further discharge. — (d) DiMresim^Jlatulencenndmeteorismus will often be relieved, especially in the adynamic states, by a terebinthinated or an assafoetida injection (F.136.), and by the warm epithem ; or by the infusion oi' the leaves of rue, employed as fomentations over the abdomen ; or by the bruised macerated leaves applied warm to the same situation. — (e) Leipo- thymia or sinking, or even full syncope, may follow the efforts at evacuation — particularly if the 3 A 3 726 DYSENTERY — Consequences of Acute and Ciironic. patient get up to tlie night-stool, at an advanced, or in an adynamic state of the disease ; and death may even take place from this circumstance, espe- cially in the scorbutic complication, or when the patient has been kept too low, or has been addicted to spirituous liquors. Restoratives, the supine posture, and the use of the bed-pan, should not be ■ neglected in these casss. 117. C. (a) Prolapsus ani indicates severe irritation about the sigmoid flexure of the colon, and upper part of the rectum, and requires the careful replacement of the part, local depletions from the sacrum, astringent fomentations with opium to the anus, astringent lotions, and injec- tions with an urethra syringe, especially if the rectum be ulcerated; small injections of the dilute black wash, if sloughing of the bowel be suspected ; and the belladonna plaster over the sacrum, or above the pubis, in order to remove the spasm of the muscular coats of the intestine. When this symptom occurs in chronic dysentery, we may infer the existence of ulceration. In such cases, injections of a solution of nitrate of silver will give permanent relief. — (6) Excoria- tions about the anus often occur, in all the forms of the disease, but most frequently in the hepatic complication, and require warm anodyne foment- ations and poultices ; small narcotic injections ; and ointments with opium and mineral astrin- gents, as the sulphate of zinc or the acetate of lead. — (c) Abscess in the vicinity of the anus should be treated at first by local depletions and cooling discutient applications ; and if these fail, by warm poultices, and early external openings, in order to prevent internal fistula. If the sup- purating part assume an unhealthy aspect, injec- tions with the dilute disinfecting fluid, and a tonic constitutional treatment, should be adopted. — {d) Ulceration in the bowels, of a sloughing kind (§ 54.), is a very unfavourable occurrence in the acute forms, for which a tonic and an emollient treatment — the internal use of the chlorates with opiates, and mucilages, clysters of the same de- scription, and the other measures directed for the malignant variety {§ 89.) — should be employed. The ulceration that takes place in the progress of the chronic form ought to be treated by the remedies recommended for the obstinate states of that form (§ 105, 106.). 1 18. iv.OfcERTAINCoNSEQUENCESOF Acute AND CimoNic Dysenterv. — A. — (a) In the acute varieties, and occasionally in the chronic, the e,r- tension of injlainmat ion, w'llh or without previous ulceration, from the internal to the external surf ace of the bowels, or to the omentum, or mesentery, is one of the most dangerous results ; and requires very decided treatment, as soon as the symptoms of tliis change (§55.) appear. General or local deple- tion, if the state of the circulation and of the con- stitutional aftection permit either or both, should be practised ; a full dose of calomel, camphor, and opium being exhibited immediately afterwards. These may be followed in a few hours by the tcre- binthinated drauglit, or enema, or by both ; but more especially by the warm turpentine ei)ithcm (§ 89.), which ought to be repeated until the peri- toneal inflammation is subdued. Nothing short of these means, ])romptly practised, will, in such cases, save the i)ati(jnt ; but these will sometimes be successful, if properly employed, and not left to ignorant or careless persons. — {b) Adhesions of various parts of the serous surfaces sometimes remain after these attacks ; as shown upon dissec- tion of cases that have been carried off a long time subsequently by other diseases. The signs of this sequela are very obscure and uncertain. But I believe, that these adhesions will gradually diminish, and ultimately also disappear, if we succeed in restoring the natural functions to a healthy state ; all adventitious productions being removed by a due manifestation of the vital ener- gies in the assimilating and absorbing organs ; and by derivation to, and counter-irritation in, distant parts. Either with, or without, the effu- sion of lymph necessary to these adhesions, a copious effusion of serum into the peritoneal cavity may take place ; the dysenteric affection being suppressed, or very rarely persisting. This occur- rence is most frequent when there is c-oexistent disease of the liver, or when the dysentery has followed fevers. The treatment, in such cases, must be much the same as that directed in Droi'sy of the Abdomen. The application to|the abdominal surface, twice daily, of about a drachm of an ointment consisting of from six to twelve grains of veratria to an ounce of prepared lard, as first recommended by M. Magendie, and very recently adopted in this country, promises to be extremely beneficial, as being more especially appropriate, in dropsy occurring in these cir- cumstances. 119. B. Contractions or strictures of the colon are among the most unfavourable changes attend- ing the advanced stages of the chronic disease, or remaining as its sequela. It is important, in re- spect both of the diagnosis and treatment, to form some idea, although we cannot often be certain, of their existence during life. Yet I have seen the diagnosis fully established, in some instances, by rational inferences from the phenomena of the case. The use of bougies, for the purposes of diagnosis or cure, is entirely out of the question : the legitimate exercise of medical science is here only required. If there be great difficulty or impossibility of procuring full or feculent stools, the patient not complaining of tenesmus or the acute symptoms of dysentery ; if the evacuations be scanty, or contain semi-dissolved fasces, with shreds of white mucus or of albuminous exuda- tion, and if they be preceded by an uneasy sen- sation in the course of the colon, with that of load or fulness about the cajcum and righ: hypochondrium, or between the epigastrium and umbilicus ; if there be distension of the abdomen, with flatulent eructations and a foul or fseculent odour of the breath ; if an injection cannot be fully thrown up, or if it return immediately, or before the last part is thrown up, although tht pipe is fully introduced, and carefully guarded ; and particularly if these symptoms occur in an advanced stage of the chronic disease, or in per- sons who have had previous attacks ; then stric- ture in the left and sigmoid flexures, or even in the transverse arch, should be dreaded. In such cases, the patient will occasionally complain of a sense of tearing, scraping, gnawing, or of dragging in some part of the colon, previously to the operation of the bowels ; the regions of the caicum and ascending colon being hard and tumefied. 120. The chief objects in these cases are to preserve the contents of the large bowels in a DYSENTERY — Treatment advised by Authors. 727 fluid state, and prevent thereby the accumulation of fajcal matters above the stricture, and the con- sequent irritation and distension ; endeavouring, at the same time, to subdue the chronic inflam- mation and ulceration frequently existing in tiie strictured part. These intentions arc to be ful- filled by gentle and cooling laxatives ; by refri- gerants vvitli anodynes and emollients, and by injections of a similar kind, slowly and carefully tiirown up by the improved apparatus, (jentle friction, also, of the abdomen, with oleaginous or antispasmodic liniments, following the exhi- bition of these medicines, will also be serviceable. As to tlie particular remedies that may be em- ployed, the bitartrate of potash with borax, or with magnesia; the potassio-tartrate of soda; manna; olive oil, or oil of almonds, either alone, or with sweet castor oil ; ipecacuanha with soap, small doses of blue pill or hydrarg. cum creta, and extract of hyoscyamus or of conium ; the nitrate of potash with carbonate of soda and small doses of camphor ; tiie confection of senna with sulphur, and cream of tartar ; the decoctum lini in enemata with olive oil, or with biborateof soda ; the common soap injection ; the emplastrum ammoniaci cum hydrarg., either alone, or with extract of belladonna, placed on the abdomen ; or the linimentum hy- drargyri, with the linimentum saponis cum opio, and the linimentum camphoraa compositum, rubbed assiduously on this part ; or external irritation of it by F. 311., or by croton oil ; and a regulated farinaceous diet ; have appeared to me the most successful remedies. Aloetic, saline, resinous, or irritating cathartics are obviously injurious. During this treatment, febrile excitement of the system should be guarded against, and removed by cooling diaphoretics. The occurrence of stric- ture in the rectum, as a sequela of chronic dy- sentery, is not infrequent, and should be treated upon the same principles and in the manner ex- plained in the article Rectum. 121. v. Notices of Methods of Cure and Rejixdies recommended by Writers. — In the treatment of no other disease, perhaps, has the baneful influence of exclusive medical doctrine been more fully exerted than in that of dysentery. This is fully evinced by the much less rational measures very generally employed, towards the end of the last century and at the commencement of this, wherever the theory of Brown was adopted. — A. Vascular depletions have been di- rected in dysentery from the earlier periods of medical history. They were recommended by Aetius, Alexander, and Rhazes; and by Go- RiON (Ergo Dys. Phlebotomia. Paris, 1604.), Ri- vERius, Prosper Alpinus, Lespicier, Botal- Lus, Sydenham, Ellain, Zacutus, and many other writers of the sixteenth and seventeenth centuries ; but had fallen into disuse, when Dr. Jackson and Dr. WHYTE(Mfrf. and Phys.Journ. vol. ii. p. 283.) revived the practice. During the Peninsular campaigns, general and local bleeding were freely employed by Drs. Somers, Fergu- son, Forbes, and other physicians of the British army. Indeed, it had never been altogether neglected by judicious practitioners during the last century, notwithstanding the injurious in- fluence of theory upon medical observation and practice ; for we find it directed by Hillary, Akenside, Cleghorn, Pringle, Baker, Stoll, M'G RIGOR, &CC., and strenuously contended for by JuNCKER (De Util. Venasect. in Dys. Hal. 1770.) in the early stages of the inflammatory disease. From what has been stated above, it is apparent that bloodletting, although applicable to certain forms of dysentery, should be employed with much discrimination, and with due reference to the exciting causes, and to the prevailing epidemic constitution. This is well illustrated by its in- jurious efTects in the asthenic forms; especially those proceeding from depressing causes and con- taminating sources; and by the history of dysen- teric epidemics (§'29.). Mr. Bacot states, that when the malady was consequent upon fever, in the Peninsula, or arose from the same exciting causes, bleeding could seldom be borne. It would also appear, that from 1817 to 1827, during which period the seasons were tolerably regular and the summers dry and warm, this disease was attended by more or less of the in- flammatory diathesis ; and that, from this latter date, when they became less regular and much more wet and cold, it has assumed more of the asthenic characters. The application of leeches to the anus, advised by Weumann, Hunnius, and many French writers, is often productive of benefit ; but irritable sores, owing to the excre- tions coming in contact with the bites, are apt to follow. 122. B. Evacuants. — (a) Emetics are extolled by some writers, and considered injurious by others. The circumstances in which they may be employed (92. 115.) have already been pointed out. They are certainly more beneficial in some seasons and epidemics than in others ; as, indeed, admitted by Chomel (Ergo Dysent. Vomitus. Paris, 1698.), Fischer, Goeden, ^Iichaelis, and Schmidt (De Emet. Usuin Dysent. Jenae, 1803.), and Hunnius (Horn's Archiv. 1811, p. 151.), who are amongst the most strenuous believers in their efficacy. Hippocrates directs early re- course to be had to them. Cleghorn advises them in the bilious form : Wendelstadt in the same variety, or when the disease is complicated with rheumatism ; and he prescribes diaphoretics and opium after their operation. Stoll very justly considers them most appropriate where there are little fever, and no constant pain or tenderness in the abdomen. In these cases, they generally promote diaphoresis, especially if opiates be given soon afterwards. As to the choice of emetics, some difference exists. Antimonials are preferred by Pringle (Editi. Med. Essays, vol. v. art. 15.), Baker, Adair, and Saunders; and ipecacuanha by Hargens, Weber, Annesley, and the great majority of the most recent writers. Dr. Wright found ipecacuanha emetics, followed in succession by cream of tartar and castor oil ; afterwards by Dover's powder, as soon as the digestive tube was evacuated ; and, lastly, by cinchona or cascarilla ; the most successful method in West Indian dysentery. 123. (b) Purgatives, generally of a mild de- scription, are directed by Du Brevil, J. Hunter, Lo.MBARD, jMiJLLEn,and HEssE(De Usu Evaciian- ti^im in Dys. Jenae, 1800.). Sydenham pre- scribes thos'e of an active kind, after bleedin" and a full dose of laudanum. Jackson and Annesley' adopt a nearly similar practice. Hun- nius and Wendelstadt prefer laxatives, or mild and cooling purgatives, and consider them most serviceable in the bilious variety ; whilst Lind, 3 A 4 728 DYSENTERY — Treatment advised by Autiiohs. VoGEL, TiiOMANN, Weber, and Neumann be- lieve all purgatives injurious, and advise only the gentlest oleaginous luxatiies. The circum- stances in which tliese medicines are most appro- priate will be apparent from what has been stated above; as well as those which should be selected. Calomel is preferred by Jackson, Ballingall, Bampfield, and Annesley, when assisted in its purgative operation by other medicines, either combined with it, or given subsequently. Sulphur is recommended as a laxative by Wedekind and Lange {Miscel. Veiit. p. 30.) ; and certainly full doses of the precipitated sulphur, with one or two drachms of cream of tartar ; or these with confeciion of senna, in the form of electuary ; are amongst the gentlest and most certain aperients that can be exhibited, in an advanced stage of the acute, or in the chronic disease ; and may be given every two or three hours, until the effect is produced. The neutral salts are, in general, not so serviceable as the laxative oils, although Clarke, Balmain, and Mursinna are favour- able to the use of the sulphate of soda. Stole recommends the saline aperients only in the bilious variety ; and anodynes after their opera- tion ; and several writers extol them when conjoin- ed with antimonials. The bitartrate and tartrate of potash, or the potassio-tartrate of soda, are, upon the whole, the most serviceable of this class of purg^itives. The hitartrate of potash, finely levi- gated, and given to the extent of three or four drachms every six hours, in the form of electuary, with the pulp of tamarinds and syrup of ginger, will often open the bowels and procure the ex- cretion of bile, when other means fail. The practice is recommended by SELLE.(i>e Curandis Morbis, S\c. p. 157.), and was found to succeed is some hopeless cases by Dr. Cheyne. It is the more efficacious after the exhibition of mer- curials; and, when the substance of the liver is acutely affected, may be depended upon as an appropriate refrigerant purgative. But, in or- dinary circumstances, there can be no doubt of tlie propriety of the decision of C'ullen, Bang, ToDE, Clark, and Piuerit, in favour of oleagi- nous laxatives given by the mouth, and in muci- laginous enemata. When we suspect, from the existence of scybala, or the appearance of the stools, or from fulness or hardness in the course of the colon, the accumulation of faecal matters in the cells of this bowel, the oleaginous draught prescribed above (§ 83.) maybe exhibited ; or the following pills may be given every two hours until a full evacuation is procured : — No. 203. R Scaminonia?, Pulv. Rhei (vel Pulv. Jalap.), aii gr. ij. ; I'ota.ssic Sulphatis gr. iv. ; turn probe simul, et adde Olei aut Syrupi q. s. ut fiant PiluliE diia?. 124. (c) Enemala arc amongst the mo.st effica- cious means for eitiier the evacuation of morbid matters, or tiie removal of the diseased action going on in the large bowels, or both. Those with the laxative and emollient oils are preferred by Celsus, Cullen, Bang, Horn, Radem aciier, and some others, when the first intention reciuires to be fulfilled ; and to these substances may be added laudanum or hyoscyamus, dccording to circuuisiances. Amylticeous, einollieut, or muci- /iigiuoiis iiijeitioiis, with or without anodynes, are directed by 11ii"|'()ci;ates, Alexander, J'aulus, 1-iM), Sciii.r.GEL, Duncan, Njumann, Tiiomann, &!•., chit-fly witii tlic SLCotiil of thesi' intentioi).s. Small acetous clysters with opium are prescribed by Vander Heyde, Birnstiel, and BrUning ; decoction of linseed with laudanum, by Celsus, Clark, and Horn ; decoction of quince seeds, by Wendt ; the decoction of the root of marsh mal- lows, by Paulus ^gineta and Ecker ; milk, by Celsus, Alexander, and Forestus (lib. xxii. obs. 36.) ; and milk with iheriaca, in the acute varieties, and with Venice turpentine, in the chronic, by Sydenham. Injections, as directed in the foregoing sections, should have strict refer- ence to the state and stage of disease, and not be bulky. HuNNius considers large enemata in- jurious; they are very seldom long retained. Many substances, besides those now mentioned, may be thus administered ; especially in the chronic states. Galen, and the Arabian phy- sicians, exhibited nearly all the vegetable and mineral astringents, the anodynes, and even the escharotics, as the preparations of arsenic and cojyper, in this way. Dr. Jackson advises a weak solution of bichloride of mercury with myrrh, and demulcents ; and Mr. Annesley, the black or yellow wash, to be thrown up in enemata, in the chronic complaint. 125 C. Emollients and Demulcents areheneficia.], not only in themselves, prescribed in the form of draught or injection, but also as the vehicles of more active substances. They constitute one of the chief means employed by Hippocrates in dysentery. Several oils are exhibited in this manner, either in the state of emulsion, or on the surface of other fluids. Linseed oil is preferred by Ruland {Curat. Erup, c. iv. n. 40.); al- mond oil, by Heuermann ; and sueet oil, by nu- merous writers. This last, in sufficiently large quantity, is one of the most efficacious remedies that can be administered as an enema. Mucilages, prepared chiefly from the gums, either alone (Gilirert, Advers. Fract. Prim. p. 417.), or with absorbents and opium (Pfenninger and Staub) ; the decoctions of marsh mallows or of the common mallow (Paulus, Kortum, Ecker), drunk warm, in large quantity; saleb (VVeber and Hargens) ; and the decoction of the Cara- geen moss, or of Iceland moss (Hargens, 1. c, and Herz, Briefe, b. ii. n. 2.) ; are useful medi- cines. 126. D. Anodynes, especially after vascular depletions where they are required, and alvine evacuations, are very generally recommended. — (a) Opium is the most to be depended on, and the most generally appropriate in some combin- ation or other, according to the intentions to be fulfilled. If its sedative effect chiefly be desired, and if inflammatory fever be present, it may be given in doses of from one to four grains, either alone, or with nitre, or with antimonials, as di- rected by Blane, Himly, Jawandt, Ciieyne, Neumann, and Horn {Archiv. b. vi. p. 103. et seq.). When it is desirable to procure a diapho- retic operation, it is best conjoined with ipeca- cuanha (Cardin, MiJLi.ER, &c.), or small doses of caniplior and nitre ; or in the state of laudanum, with considerable quantity of the spiritus ffitherls nit] ici, or with other diaphoretics (Hinze, Jack- son, &c.), especially in the asthenic forms. If the biliary secretion be scanty, the liver not being actively diseased ; or if the intention be to excite salivation ; opiun) may be conjoined with mode- rale doses of calomel, and given every four or DYSENTERY — Theatment advised dy Authors six hours, as directed by J, Johnson, Leiden- frost, Rf.nton, and others — partieuUirly in the sub-acute and chronic states. If the powers of life be depressed, and the circulating and secreted fluid vitiated, it will be necessary to exhibit it with tonics and antiseptics (JMouton, Wedk- KiND, &c.), as cinchona, the clilorates, &c. ; and with astringents (Riedlin), when the evacu- ations are profuse, the digestive mucous surface relaxed, or the disease chronic. Consbuuch considers opiates injurious, unless preceded by emetics ; and Sydenham, Mursinna, and others, either premise evacuations, or alternate them with anodynes, i'lie opinion of Wendelstadt, that opium, as well as astringents, are injurious in the bilious variety, until morbid secretions are evacuated, is judicious, and may be extended to most forms of the disease. In the nervous or typhoid variety, they should be given with great circumspection. Morton found that, when mainly depended on, in the epidemic of 1G66, they augmented the exhaustion and muttering delirium frequently attending it. Opium, in iup- ])ositoiie3{ Hateman, Sec), and in liiiimentsTuhhed on the abdomen, or externally in other forms (Hargens and Tiiomann), has been already re- commended in various states of the malady. 127. (h) Amongst those substances which act most energetically in removing spasm of the intestinal hbres, and diminishing morbid sensi- bility, liyoscyamus, belladonna, and tobacco, are the most deserving of notice. Hyoscyamus is re- commended by Matth;f.i, Withering, and Hun- Nius; and, in the acute and febrile states of the disease, uiay be exhibited in the same manner and forms of combination as opium. The recent juice of belladonna is praised by Gesnlr (Haller's JJiblioth. Med. Pract. vol. ii. p. 55.), and Ziegler {Beobachtung, p. 35.); but the powder of the root, and the extract of this plant, are equally efficacious when properly preserved. A strong infusion of tobacco is prescribed as a fomentation to the abdomen, by Urs. Graves and 0'13eirne. These narcotics are appropriated only to the early stages of the sthenic states of the disease, and require much discrimination and caution. The hydrocyanicacid, with camphor, ipecacuanha, and mucilages, is of benefit when judiciously prescribed. 128. E. Diaphoretics are extremely beneficial in the early stages of the disease. 'Those of a cooling and relaxing kind are most suitable to the sthenic forms, and such as are warm and ex- citing in the adynamic states. — (a) Antimonials are preferred by Pringle, Sims, Fischer, Baker, APOGEE, Adair, Richter, and Hufeland ; whilst Heuermann {Bemerk. b. i. p. 184.) considers them injurious, — an inference, which I believe to be correct as respects their exhibition in the advanced stages, or in the asthenic states. Of these preparations, the most serviceable is James's powder, given with calomel, or with calomel and opium in the first stage. Liquor ammoniic ucetatis, with mucilages, emollients, and opiates (Hardens) ; or with small doses of camphor and nitre, and either with (Richter and Saun- ders) or without anodynes, is more generally appropriate ; and, in persons who have been ad- dicted to spirituous liquors, or in the asthenic forms, with camphor mixture, the spiritus am- monias aromaticus, or the spiritus tctheris nitrici 729 and laudanum, is very beneficial. The infusions of serpentaria or ef arnica, either alone, or with liquor ammoniaj acetatis, or with camphor and opium, are indicated ciiiefly in the malignant or nervous varieties, or in the advanced stages of the other asthenic forms. The infusioo or powder of the root oi arnica (Miciiaelis, Collin, Birn- stiel, and Fischer), may be employed in similar combinations and states of the disease, as advised by Richter. Stole (2?at. JVI^fZ. vol. ii. p. 421.) recommends it after emetics, depletions, and evacuants, in the acute ; and in the chronic complaint. Ipecacuanha is, however, the most certain in its effects, when combined with opium, and the most to be depended upon, in arresting the train of morbid actions. The injunction of Sir G.Blane, to have recourse to diaphoretics after evacuations have been procured, should not be overlooked. — (/;) The importance of restoring the functions of the skin has been duly estimated by Gruber, Jackson, Neumann, Vogler, and Schlegel, and should not be confided to internal remedies merely. Tepid or slightly warm baths, in the highly inflammatory states, and ivarm baths (Blane, Horn, Richter, Konig, Goeden, &c.), or baths with aromatic and stimulating herbs in- fused in the water (Tiiomann, Ann, ad 1800, p. 237.) are also important means. Vapour baths, and the application of dry heat (Heister, Voglek, and Hargens,) are also deserving of notice. Frictions of the surface, or, as Prosper Alpinus and others advise, frictions with sweet oil, upon removal from the bath to a warm bed ; and the internal use of diaplioretic diluents, are useful adjuvants. — (c) Warm poultices (An- nesley and Author) and epitheras or foment- ations frequently applied to the abdomen, as directed by Alexander, Riverius, Brijnner, Stole, Richter, &c.,are often serviceable, when they are so managed as not to wet the bed-clothes. Warm cataplasms of aromatic and antispasmodic herbs, &:c., are praised by Heister, Blanchard, Thomann, BriJning, Klinge (in Hufeland, Jonrn. der Pr. Arzneyk, b. vi. p. 900.), Hinze (Horn's Archie, b. iv. p. 516.), Goeden (/6(c?. Mart. 1812, p. 331.), and Horn {Ibid. b. vi. p. 263. )• These also act as derivatives, as well as diaphoretics. 129. F. External derivation is very generally prescribed. IMoseley and ]Mattha:i recommend it chiefly in the complication with rheumatism, for which Paulizky {Beobachtung. st. ii. n. 1.) directs blisters lo the thighs ; where, also, they are generally ordered to be applied by MiiLLER, EcKER, and Amelung. Schlegel, Lind, Stole, Blane, Fischer, jMijrsinna, Neumann, and An- NESLEY advise large blisters to the abdomen ; and Hunnius to the sacrum ; whilst other writers think that they increase the dysuria. Sinapisms are noticed by Blane and Fischer ; and camphorated liniments rubbed on the abdomen, by Lind. These are less rapid in their effect-;, and much less efficacious, than the turpentine epithem described above (§ 89.), or friction with croton oil, either of wiiich may be also applied to the insides of the thighs and legs in urgent cases. 130. G. Astringents form a principal part of the means employed in dysentery by Galen and the Arabian physicians. Various substances of this kind are recommended. Dr. Wright advises Citric acid and common salt, which Ere often of 730 DYSENTERY — Treatment advised dy AuTHons. much service either with or without opium, espe- cially in the asthenic states, and as they occur in the dark races. Goeden (in Horn's Archiv. Mart. 1812, p. 284. and 323.), prescribes tartaric acid witii refrigerants, and opium ; Bang, sul- phuric acid with mucilage; Annesley, the witj-o- Ai/droc/i/onc acids, with anodynes ; and M'Grigor and Hope, iiitric acid with opium ; this last being chiefly appropriate to chronic cases, and those as- sociated with disease of the collatltlous viscera. BiRNsTiEL directs alum conjoined with camphor; Loos (Horn's Archiv. Jan. 1810, p. 193.) alum with tormentilla root ; Hunnius, Michaelis (HuFELAND, Joitrn. der Pr. Arzneyk. b. vi. p, 280.), and Hardens {Ibid. b. vii. p. 137.), alum with mucilages, opium, &c., chiefly in the chronic and atonic states; Moseley and Jack- son, alum with sulphate of zinc, by the moutii and injections ; and Adair, alum with spermaceti, or gum, opium, and aromatics, in epidemic dysen- tery occurring among negroes. Lime water with milk, or with mucilages, is praised by Grainger, Brefeld, and Lange ; but is most serviceable in the chronic and asthenic states, and in the form of enema ; in wlilch cases, various other astrin- gents are recommended, especially after morbid matters are evacuated. In this manner the pre- parations of catechu are directed by Brande (Tode's Med.Journ. h. x. n. I.) and others; kino, by Weber; the infusion of galls with opium, by Elliotson and Roots ; hainatoxylon with cinna- mon and other aromatics, by Pringle and Wendt ; the tnrinentilla root, by Hoffmann; the lythrum salicaria, by Quarin and Gardane; the root of the ledum palustre, by Biornlund ; betel, by Peron ; the inner bark of the brucea antidy- senterica, by several writers ; and the decoction of the pomegranate hark, or of the rind of the fruit, by the ancients, and by many modern authors. All these, especially tormentilla, catechu, and betel, are advantageously combined with ipecacuanha or Dover's powder. Several mineral astringents are also exhibited, especially in the asthenic and chronic states, or in far advanced stages ; inter- nally as well as in enemata. Arsenic, and the rust o( copper, are prescribed by Galen, Rhazes, and most of the ancients ; and the sulphates of zinc, of copper, and of iron; and the nitrate of silver, either with or without opium ; by the authorities referred to in the article Diarrhcea (§ 50.). The acettile if lead Is recommended by Fep.nelius, Cameraruis, and Nardius, and is now frequently employed, in pills, draughts, or injections, gene- rally with opium and ipecacuanha, both in the acute and chronic forms; particularly the latter. It should be recollected, when prescribing astrin- gents In this disease, that they are injurious when exhibited early in the acute states, and wliilst there is much fever, or when morbid matters remain to be evacuated. In other circumstances, they fre- quently are of much service ; particularly when altered secretions and accumulated excretions are discharged from time to time by a junnd. KiUS — Iltinliiis, D(! Med. Indonim, cap. iii. \k 218. — (liiiirlier. An Inci- I>ii'nti Dys. pnestantiiis .-ib Astrini,'ciitil)ns aiit ICincticis, •jiiani uVeiKesectioneKeiricdiuin ? i'aris,1703 M.Al/ierli, Do Dys. cum Petecliiiset I'lirptirfi, 4to. niila',1718 J.J, ll'filrl.iclimirlt, De Dysen. Mali^'na, 4t<>. Marl). 1730, — A. Vuler, Dc Ipecucuanlio; Virtute t'ebrif. ct Antidysen- terica, 4to. Viteb. 1732 F. Uqff'mann, Dc Dysenteria, Opera, Supp. Ii. Hals, 1734.— X IJ.Degner, De Djs. Bilioso-contagiosa qucE 173G, Neomagi, &c. epidemic^ grassata fuit, &c. 8vo. Traj. ad Rh. 1738. — Baglivi, De Pr. Med. 1. i. cap. 9 — C. J. Hempelius, De Dys. Maligna, &c. 4to. Erf. 1739 — L. R. Desbois, An Dysen. Ipecacu- anha? 4to. Paris, 174.5. — L. Griiber, De Febre Acuta Epideraica E.xanthematico-Dysenterica,4to. Bas. 1747. ; et A. later, De Dysent. Epid. maxime Contagiosa et Maligna, .Super. Auno Pat. Davastante,4to. Viteb.1747. ; in Halleri Collect, vol. iii. 380. et 399. — Costa, De Diar- rhota et Dysenterica Epid. quae grassabantur, &c., 4to. Pusel. 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Essays, &c. vol. v. art. 15. ; and On Dis. of the Army in Camp and Gar- rison, 8vo. 7th ed. — P. G. Schroeder, De Dys. Analecta Practica, 8vo. Goet. 1708. — J. G. Zimmerman, Vouder Ruhr unterdem Volke, im Jahre 170.5. 8vo. Ziir. ; trans- lated by Hobson. Lond. 1772, 8vo. — Ackermann, De Dys. Antiquitatibus. Lips. 1777.— S/ws, On Epidemical Disorders, 8vo. Lond. 1773, p. 103. — C. F. Eisner, De Dysen. Differentiis, 4to. Keen. 1781. — M. B. Moseley, Observ. on the Dys. of the West Indies, 8vo. Lond. 1781. — Vcrhagen, De Dys. Biliosa Putrida, 8vo. Col. 1782 Duncker, De nonnul. PriEJud. et Abus. circa Dys. Curam vitandis. Duisb. 1782. — J. tiollo, Observ. on the Acute Dys. 8vo. Lond. 1780.— i^. H. Birnslicl, De Dysen. 1778, 1779, et 1780, Epidemica, &c. 8vo. Manh. 1786. — Cowley, in Lond. Med. Journ. part iv. 1786. {Complicat. with scurvy.) — J. Hunter, On the Diseases of the Army in Jamaica, 1796 Lind, On Dis. of Hot Climates, p. 248. — Clark, in Edin. Med. 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Mcd.vol.x.p.315 f frg!/4o», Trans.of Med.. Chirurg.Soc. t. ii. p. 181 Renton, i\\ Trans, of Med. and Chirurg. Soc. of Edin. vol. ii.p. 374. — Pisani, Archives Gener. de Med. t. v. p. 584. — Trousseau, in Ibid, t.xiii.p.l. (Epidemic.) — Denoyer, in Ibid. p. 444., et t. xiv. p. 33. (Epidemic.) — Compagny, in Ibid. t. xvii. p. 295. (Endemic.) — /.. ./. Schm!dt7nan7i, Surama Observat. Med. &c. t. i. cap. x. p. 176.— Frame, Rev. Med. t. iv. 1825, p. 68 L. Frank, De Pcste Dysenterica, &c. 8vo. Vien. 1820 Chiskolm, Climate and Dis. ofTrop. Countries, 8vo. Lond. 1822. p. 54. — Bamp/ie/d, On Tropical Dys. particularly as it occurs in the East Indies, and on Scorbutic Dys. &c. 8vo. Lond. 1823. — M. Good, Study of Med. by Cooper, vol. ii. p. 595. — Jo7ies, in Medico-Chirurg. Review, voi. iii. p.272. ( Typhoid and i7ifeclious in crew of ship of war. ) — J. A .F. Uxanu77i, Uistoire Mtd. des Maladies Epidemiques, &c. t. iv. p. 90. — J. Johnson, On the Influence of Tropical Climates on Europ. Constitut. &c. 4th edit. p. 225. — P. Vignes, Traite. Complet de la Dys. et la Diarrh. &c. 8vo. Paris, 1825 Re7iton, in Trans, of Edin. Med. and Chirurg. Soc. vol. ii. p. 376. — Elliotson, in Trans, of Med. and Chirurg. Soc. vol. xiii. p. 451 Baillie, Lect. andObserv. on Med. Lond. \9i2Z.—J.A7i7icstey, Sketches of the most Preval. Diseases of India, &c. 8vo. 2d edit. Lond. 1831. — J. Annesley, Researches into the Causes, Nat. and Treat, of Dis. of India, and of Warm Climates, &.c. 4to. Lond. 1828, vol. ii. passim.— Bright, Reports of Medical Cases, &c. 4to. vol. i. Lond. 1827, p. 176 — J. Abercro77ibie, Path, and Pract. Researches on Dis. of the Abdominal Viscera, &c. 2d edit. Edin. 1830, p. 230. rt Acy. — Kreyssig, in Encyclopadisches Worter- buch d. Medicinisch. Wissensch. &c. b. ix. p. 627. — A. Bompard, Traite des Mai. des Voies Digestives, &c. 8vo. Paris, 1829, p. 128.— IValsh, in Trans, of Med. and Chi- rurg. Society of Edin. vol. iii. p. 512. (O71 the Scorbutic Dys. in the Burmese War.) — W. Ttcinijtg, On largeDoses of Ipecacuanha in Dys., in Trans, of Med. and Phys. Soc. of Calcutta, vol. iv. p. 170. ; andOn the Pathol. andTreat. of the most important Dis. of ISengal, 8vo. Calcutta, 1832, p. 1. DYSMENORRH^EA. See Menstruation. DYSPHAGIA. See Deglutition, Diffi- cult. DYSPNCEA. See Respiration, &c. DYSURIA. See Urine, &c. EAR — Nervous Affections of the. 1. Certain diseases of the ear will be here con- sidered ; which, although sometimes attended by disorder oi lieuring ; and often terminating in im- pairment, or loss of this sense ; are not necessarily accompanied by either. — In the article He.vring, the affections or this function will be viewed with reference to the lesions producing them, seated in different parts of the organ. I. Noises in hie Ear. Syn. — Tinnitus, Susnr- rus, Sonitus, Sibiius, Syrigmus, Bombus, Aurium, Pathology of. 735 Auct. Paracusis illusoria. Good. Das Ohrent'ii- lien, Ohrenkliiigen, Ger. Tiiileinent, Bourdoiine- meiit de COreille, Fr. Singing in the Ear. Classif. — 4. Class, 2. Urder (Good.) — I. Class, IV. Oroer (^Author). 2. Defin. — A sense of ringing, whizzing, or beatiiig sounds in one or both ears, without external causes. 3. i. These sounds vary in their characters. They are sometimes sharp, shrill, ringing, and succes- sive ; occasionally whizzing, roaring, acute, and continuous; and in other instances, beating or throbbing. They may be recurrent or intermit- tent, or devoid even of remissions, and be heard either in one or in both ears. M. Itard — the highest authority on diseases of the ear — divides them into, — ■ 1st, The false, or those which have no existence whatever; and, 2d, the true, or such as are seated in the interior of the head, or of the ear, but without being caused by external sonorous bodies. Tiiiniius uHriu7n is most fre- quently attended by a slight degree of deafness, which, in some cases, it produces, and in others is merely coincident with it. (a) True tinnitus may proceed from — a. cerebral plethora, con- gestion, or determination; — B. the impeded or obstructed return of blood from parts within the head ; — and, y. mechanical obstacle to the free circulation of air in the different compartments of the ear ; but without completely preventing its entrance, for then the noise would be replaced by simple deafness, ^^'hen the noises depend upon the state of the cerebral circulation, tiiey are ge- nerally beating, heavy, hissing, or whizzing ; fre- quently correspond with the pulsation of the carotids, which also is often strong ; and are ar- rested by pressure of these vessels. (6) False tinnitus is — a. idiopathic, as when a very loud noise has injured the functions of the auditory nerve : and, ^. symptomatic, when allied to some nervous affection, often unappreciable in respect either of its cause or of its nature, or sympathetic of disorders of some other organs. Thus, this af- fection often attends indigestion, and hypochon- driasis, especially in persons devoted to prolonged and exhausting mental exertions ; sometimes de- bility or hysteria, particularly in delicate females, who have suffered from excessive discharges, or who are addicted to venereal indulgences or ma- nustupratio ; and occasionally disorders of the prima via, as worms, torpid states of the colon, lice. In this variety, the noises are, in some cases, of a very unusual and even singular kind ; and in hypochondriacal, nervous, or melancholic persons, give rise to various fancies or even ImlUi- cinations. In the case of a lady, for whom I was lately consulted at the same time with two other physicians, and who complained of noises in the ears after having suffered in her general health from too frequent returns of the catemenia, in excessive quantity, theie gradually arose in the mind of the patient, an idea that persons were engaged whispering behind her; and ultimately it took so firm a possession of her mind, that it amounted to an hallucination, influencing both her judgment and her actions. 4. ii. Noises in the ears are most frequently caused by interruption to the free circulation of air through the Eustachian tube. Hence they are common attendants on catarrhs, and on enlarge- ment of the glands, &c. in the vicinity of the tube ; 736 EARACHE — Pathology — Causes of. anil are often produced by currents of cold air falling on one side of the head or directed towards the ear, as by travelling in an open carriage, or with a carriage window open ; or by having the hair cut, when abundant, in cold weather. \Vhen caused by partial obstruction of the eustachian tube, a loud noise or crack is heard upon yawn- ing ; and the sounds often cease, or are diminished for some time afterwards. They are frequently a troublesome symptom during convalescence from fevers; and are sometimes attendant upon rheumatic affections of the head or neck ; in both which circumstances, they are probably depen- dent on morbid sensibility of the auditory nerves, or on determination of blood to the head, or on both. JMr. I'oD imputes them chiefly to a faulty state of the secretions of the ear, in respect either of quality or quantity; INIr. Buchannan, princi- pally to an imperfect secretion of cerumen. Their dependence upon derangements within the head, as well as upon affections of distant organs, should always be kept in mind, whilst investigating their nature and relations, and hence the propriety of viewing them in the comprehensive manner adopt- ed by M. Itard. 5. iii. Tkeatment. — The ancients, especially Celsus, paid considerable attention to this affec- tion ; many of these remedies are active and ap- propriate. It is obvious that the means of cure should be directed to the pathological conditions on which it depends. In the true tiimitus, es- pecially when it is of a beating kind, vascular depletions should be prescribed. M. Itard has seen it instantly vanish upon opening the jugular vein. Active and continued purging, with due attention to the digestive organs, is also requisite ia these cases. Symptomatic false tinnitus should be treated according to the nature and seat of the primary affection. When it is connected with rheumatism, Grapengiesser and Ritter advise having recourse to electricity or Galvanism. For the true nervous or idinpalhic affection, tonics, nervines, blisters behind the ears, stimulating gargles, and antispasmodics may be prescribed. Heister recommends in such cases fumigations of the ears with the vapour of a hot vinous in- fusion of rosemary and lavender ; M. Itard, fu- migations with ajther directed to the meatus, fiic- tions of the scalp, and warm applications, with the view of promoting an abundant transpiration ia this situation ; and iVIr. Buchannan, two drops of the mixture of equal parts of pyroligneous acid, spirit of sulphuric lether, and spirit of tur- pentine to be introduced into the ear. The di- gestive organs should be assisted by stomachics, aperients, or purgatives ; and transpiration pro- moted by gentle diaphoretics, and moderate ex- ercise in the open air. When tinnitus arises from cold, the same means, or those usually resorted .to in Catarrh, with attention to the state of the bowf^ls, will be ajipropriate. Gargles al«o vvith the hydrochlorate of ammonia, or nitrate of potash, or this latter and the biborate of soda, will also be useful. In this form of the affection, little fur- ther should be attemjiteil, unless it become chnmic, from partial obstruction of the tube, or diminisiied secretion of cerumen, in which cases it is gene- rally associated with some degree of deafness, when it will require the treatment advised, in such circumstances, in the arliclc Heauing — diini- ituliun of, &^c. BiBLioG. AND Refer. — Cclsiis, 1. vi. c. 7, 8.— Aetius, Tetral)!. ii. Serm. ii. c. 78 — Paiilus ^ginefit, 1. iii. c. 23. — Aviccnna, Canon. 1. iii. fen. 4. Tract, vol. i. c. 9. — Schenk, DeTinnitu Auriiim. Jena;, 1607. — Helbick, De Sonita et Tinnitn Aurium. Altd. \&W.—Finclccnau, De Tinnitu Aurium. Reg. 1706. — Hoffmann, De Auditus Vitiis, Opera, vol. iii.obs. i. p.243. — lantkc, De I'iiinitu Aurium ejusdemque Speciebus. Altd. 1746. — Sauvages, Class VIII., Order IV. Nosol. Method.— Leidenfrost, De Tin. ct Susurro Aurium. Duisb. 1784 — Doering, vol. i. p. 20.5 — Louis, Med. Comment, vol. iii. p. 52. — Wegener, De Susuno Aur. Duisb. 1785 Grapengiesser, Versuche, p. 130 2iitter, in Hufeland, Jourii. d. Pract. Heilk. I), xvii. St. iii. p. 40.— J. M. C. Itard. Traite des Mai. de rOreille, &c. 8vo. Paris, lt<21, t. ii. p. U. — Andral, Diet, de Med. t. xx. p. 42.'>. — T. Buchannan, Illust. of Acoustic Surgery, 8vo. Lond. 1825, p. fiO.— i>. 7'orf, The Anat. and Pliys. of the Organ of Hearing, with Remarks on its Diseases, &c. 8vo. l.ond. 1832. p. 121. II. Earache. Syn. — Otalgia (from oSj iStoj, the ear, and aXyeai, I pain) ; Ohrenschmerz, Ohrenzwaiig, Germ. ; Otalgie, Fr. 6. Defin. — Violent pain, generally in one ear, suddenly supervening, and ojten abruptly depart- ing, without fever. 7. i. Eucac/fe is most frequently s(/OTpfoma a large collection of pus communicating with the middle ear is only found. The abscess formed around, or in the vicinity of, the petrous bone, consecutively upon disease of this part, often makes its way externally to the meatus ; a similar channel of evacuation also being formed, but much more rarely when caries of this bone fol- lows the formation of cerebral abscess ( Andkal). 22. /3. The Symptoms which indicate the exten- sion of disease from tiie ear to the brain, or its membranes, are nearly the same as characterise the idiopathic states of inflammation of these struc- tures (Brain, § 146. et seq.) according to the acute and chronic states they may assume. Whilst the ear only is diseased, the pain in the head ap- pears to proceed from the ear as its source ; but when the parts within the head become affected, the cerebral symptoms are most prominent, and often obscure or altogether mask the disease of the ear. If, at an advanced stage of chronic otitis, the dis- charge be suppressed, or even much diminished, these symptoms are very liable to come on in a very severe form ; andif some time elapse between the disappearance of the one, and the supervention of the other, and if the history of the case be not attentively investigated, the disease of the ear may be altogether overlooked ; and what is strictly a symptomatic affection of the brain, or its membranes, treated inappropriately as an idio- pathic seizure. — When inflammation extends to the parts within the head, the patient complains of a deep-seated, and often throbbing pain, to- wards one side, with heaviness of the eyes, stupor, and slight delirium. The pulse is small, sharp, and quick ; the tongue furred ; and the febrile symptoms, which are usually slight, increased in the evening. There are also tenderness of the scalp near the affected ear, so that the patient prefi^rs to lie on the opposite side, thereby favouring the lodgment of the morbid secretion in the ear ; and sometimes convulsions with paralysis. Dur- ing tiie progress of caries of the bony structure even before the disease has extended to the mem- branes and biain, more especially when the pari- etes of the aqueduct of Fali.omus are implicated, neuralgic pains in the face, inflammation of the conjunctiva of the eye, convulsive motions, and ultimately paralysis, of tiie muscles of that side of the face, &c. take place, owing to lesion of the trunk of the facial nerve. Since attention was directed to these associations by Sir C. Bell, numerous cases illustrative of them have been ob- served by Lallemand, and others, and several have been seen by myself. 23. y. The duratum of otorrhcea is most indefi- nite. It may continue for several weeks or many years; and may resist all means. Sometimes it dis- appears either spontaneously, or during medical treatment. In other cases it presents a somewhat intermittent form, continues long to do so, and ultimately terminates either favourably or fatally, as stated above. In two instances which termi- nated in this latter manner, — at upwards of forty years of age in the one, and about thirty in the other, — J ascertained that otorrhcea conmienced in early childhood, and had continued, with vari- ous remissions and intermissions, to that age, when cerebial symptoms came on. In these prolonged cases, the discharge vai ics much in quantity. When the Eustachian tube is not obstructed, it often EAU — Inflammation of — Theatmext. 741 passes into the throat, and discolours the sputum ; or is at one time evacuated by tliis route, at an- other by the meatus. During catarrh or sore- throat, the symptoms are generally aggravated, chiefly in consequence of obstruction to the dis- chai ge of matter. 24. ii. The Prognosis of otorrhcea depends — 1st, on its cause, — thus the syphilitic is much less dangerous than the scrofulous disease ; — 2d, on the nature of the discharge, — the puriform being much more unfavourable than the mucous ; — 3il, on the age, — it being much less serious in childhood, than at or after puberty ; — 4th, and most especially on the presumed extent of disor- ganisation, and curies; the occurrence of local paralysis, but particularly of the cerebral symp- toms alluded to (§ 22.), being very unfavourable. All chronic discliarges from the ear, however slight they may seem, should be viewed in a seri- ous light, not merely as they generally lead to deafness, but as they are also liable to be followed by fatal cerebral disorganisation. 25. iii. Causes. — ^4. TIte predisposing ca^tses nf otitis and otorrhcea are, delicacy and susceptibi- lity of frame ; the scrofulous diathesis ; the peiiods of dentition and childhood ; the syphilitic poison ; and disorders of the prima via and digestive organs generally. — B. The exciting causes are chiefly a current of cold air ; exposure to cold air after the removal of the hair ; the introduction of foreign bodies into the meatus; accumulations of wax in this part, or the use of irritating injections ; her- petic eruptions on other parts of the body, or porriginous eruptions on the scalp, and the sup- pression of either; inflammatory aflections of the throat, tonsils, and fauces ; and determinations of blood to the head. Either the acute, sub-acute, or chronic states of the disease may supervene in the course, or after the subsidence, of any of the exanthemata, or even of continued fever, but more especially scarlet fever, small-pox, and erysipelas. Difficult dentition, the irruption of the wisdom- teeth, caries of tlie teeth, and injuries of the head, are more rarely exciting causes. iNLIxAito tliinks that falls upon the head may occasion otitis with- out producing disease of the brain. It may follow even slight attacks of catarrh in children ; and in some instances its cause is by no means evident. 2G. III. Treatment. — The means of cure dif- fer according to the acuteness, the seat, the stage, and the particular characteristics of the inflamma- tion ; and the results to which it has given rise. 27. i. Of the Acute.- — A. Acute eiternal Otitis, whilst the pain is moderate, and febrile symptoms are absent, recjuires chiefly the removal of all sources of irritation, the injection of tepid and simply emollient fluids, and the application of poultices. AVhen the pain is severe, and febrile commotion is present, general or local bleeding — the former in patients who are more than a few years of age, either from the arm, or from the jugular vein — should be prescribed ; and, if there be not much fulness of blood in the head present, an emetic, as recommended by Dr. Kennedy, ex- hibited. After its operation, a full dose of calomel with James's powder ought to be given, and fol- lowed in a few hours by an active cathartic draught. If the symptoms be not greatly relieved by these, a number of leeclies should be placed behind the ear, or cupping performed on the nape of the neck, a blister being subsequently applied in this situa- tion. In this stage and state of the disease, the introduction of any substance into the meatus be- yond simple emollient injections occasionally, is more injurious than beneficial. Some writers re- commend the use of narcotics ; but unless the harmless decoction of poppy-heads, they arc as well abstained from. AI. Itaud advises two or three grains of camphor, rolled in cotton, to be placed in the meatus, if there be no discharge ; but this appears more suitable in sub-acute and slight cases, than in those that are very acute. Dr. Lehman directs the tincture of digitalis to be dropped into the ear, or cotton impregnated vvith it to be introduced. When a discharge takes place, the simplest tepid injections only should be employed ; and, during the course of treatment, a free action on the bowels kept up. The blister on the nape of the neck should also be preserved open ; and leeches again applied behind the ear. AV'hen the pain has subsided, a mucous discharge only remaining, M. Andkal prescribes slightly astringent injections, and particularly those con- sisting of the waters of Barreges. I believe that the less they are employed the better ; attention to the functions of the stomach and bowels, and change of air, with such means as may promote the general health, being the safest and best means. 28. B. Acute internal Otitis, demands the prompt and decided use of the above remedies. After general depletion, the repeated application of leeches behind the ear, at short intervals, is often requisite, with external deriration, &i.c. If the exhibition of an emetic after these fails of re- moving the acute symptoms, antimonials should be given, so as to produce nausea and keep down vascular action ; the bowels being also freely acted on. For this purpose, calomel with small doses of James's powder, or of the potassio-tartrale, or of the compound powder of anlimonii should be prescribed every three or four hours. These means will ge- nerally be followed by resolution of the inflamma- tion, and subsidence of the symptoms, if resorted to at an early period. But if the disease pass on to suppuration, the patient will complain of a throbbing pain, with a bursting sensation in the ear, and persistence, or even aggravation of Ids sufiierings. In this case, an additional indication must be fulfilled, viz. the speedy evacuation of the matter, collected in the cavity of the drum, as its retention will materially aggravate the disease, and endanger the bony structure of the car. Several authors have advised, in such circumstances, the apj)lication of fomentations and poultices, to acce- lerate the ulcerative perforation of the tympanum and the external evacuation of the matter. These are, however, often inefficient. In order to re- move obstruction of the Eustachian tube usually existing in such cnsc^, gargles with a solution of the biborate of soda, or of nitre and it, may be em- ployed. Some writers recommend the smoke of tobacco to be forced into the tube whilst the mouth and nose are shut. But these means do not often succeed. Instead of waiting for the spontaneous evacuation of the pent up matter, which insinuates it*elf under such circumstances into the various sinuosities of the ear, IM. Itard advises, and has in many instances practised with benefit, perforation of the membrane of the drum. Having performed tliis operation, it is generally requi-^ite to inject mild tepid fluids in order to procure the full eva- cuation of the matter, which has often become 3 B 3 742 ECTHYMA. more or less consistent. If inflammatory symp- toms either continue or return, after the perforation of the tympanum, antiphlogistic measures should be directed ; but if the discharge continue, the pa- tient should sleep on the side on which the ear is affected, diluent and emoUtent injections being oc- casionally employed, so as to prevent any clogging of the meatus, and accumulation of matter in the middle ear. M. Itard directs, with this view, an injection formed of a drachm of caustic potash to the pint of rose-water. Light tonics and mild laxatives, with change of air, ought also to be pre- scribed, so as to prevent the disease from degener- ating into the ulcerative and chronic states. 29. ii. Of Chronic Otitis. — When otorrhoea becomes established after acute otitis, as above, or follows a slight or imperceptible state of in- flammatory irritation, the treatment may be divided into the local, and general, — the latter more especially being directed against the state of con- stitutional disorder. Local depletion is required only early in those cases which present more of a sub-acute character, or when this, or even acute symptoms supervene from obstruction to the discharge, or any other cause. Blisters behind the ear, stretching to the occiput, or on the nape of the neck, and either kept discharging or re- peated, are often very serviceable. M. Amdral notices setons, or cautery of the nucha, or issues in the extremities. M. Itard directs, in addition, the head to be shaved, rubbed assiduously with stimulating substances, and kept constantly co- vered with a gummed silk cap. He very judici- ously forbids the use of any other than simply diluent or emollient injections. Even gently as- tringent fluids ought not to be resorted to until the discharge begins to diminish ; if its diminution be not attended by any aggravation of the local or constitutional symptoms. In this case, the mildest asiringents may be commenced with, and those which are more and more active successively em- ployed. A weak infusion of roses, or of chamo- mile flowers, may be first prescribed, and subse- quently a weak solution of the sulphate of zinc, or of creasote in distilled water. Oily injections, in cases of otorrhoea, should not be used, as the oil speedily becomes rancid when any part of it re- mains in the ear. Whenever the discharge is sud- denly suppressed, means should be taken to re- store it. Warm bread and water pouliices orj'o- mentaiions, frequently renewed, may be resorted to with this intention. M. Jtard directs bread warm from the oven, and deprived of its crust, to be applied every three hours, and an injection of a .solution consisting of three grains of bichloride of mercury, in eight ounces of water. Care should also be taken to remove any obstruction that may present itself in the meatus. If the suppression be attended by the accession of acute .symptoms, leeches must be applied ; but the powers of life ought not to be much reduced by tliosc or any other means. INIercury in this state of disease is injurious. If matter form in the vicinity of the njastoid process, an early outlet should be given to it by a free incision down to the carious bone, and the powers of life supported by gentle tonics, light nutritious diet, and change to a healthy air. When caries is obviously present, and there is no increase of sensibility, or any other symptom of acute inflammatory action, M.Anijual advises injections of a strong solution of potash to be fre- quently thrown into the ear. When, however, there is evidence of the caries having induced dis- ease within the head, the simply diluent injections should only be used, in order to prevent any inter- ruption to the discharge. 30. By the constant use of simple diluent or emollient injections — of warm water, or milk and water merely — and careful attention to the gene- ral health, the disease may be kept stationary, from youth to old age, although it may not be cured. In scrofulous and lymphatic subjects, the bitter tonics; the infusion or decoction of bark; the creasote internally ; the preparations of iodine in gentle doses ; the ioduret of iron, or the ammonio- chloride or the potassio-tartrate of iron ; and mild purgatives, once or twice a week ; will be extremely serviceable, if there be no acute symptoms, or febrile action. I have also seen much benefit ac- crue from sulphur given daily in sufficient quantity to keep the bowels freely open. If the disease seems connected with a syphilitic taint, or has come on after syphilitic sore-throat, or an ineffi- cient course of mercury, the bichloride of mercury should be given in gentle tonics, or with a course o( sarsaparilla. Where there is fever, with a loaded tongue, or pain in the head and ear ; in addition to those appropriate local means above stated (§ 28.), a course of mild and cooling purgatives or aperients, external derivatives, diaphoretics, and a mild farinaceous diet, should be employed. Change of air, and such mineral waters as may suit the peculiarities of the case — the chalybeate, aerated, and sulphureous, in cases devoid of fever and other acute symptoms ; the aperient and re- frigerant in those thus accompanied — will be very powerful adjuvants. (See Art. Hearing.) BiBLiOG. AND Refer. — Oribashis, De Loc. Affect. 1. iv. — Aetius, 1. iv. c. 74. — Actiiarius, \. y\. c. 3. — Alexander Trail, 1. i. c. 2-1 Paulus Mj^ineta, 1. iii. c. 23. — Brotheck, De Inflam. Auiium. Tub. 1667. — Forestiis, 1. vii. obs. 19., et 1. xii. obs. 7. — Schcnck, 1. i. obs. 351 Buverney, Traite de I'Organe de I'Ouie. Par. 1683. — Bonet, Seinilcliret. 1. i. sect. 19. obs. 1. — Sclmlze, Ue Aur. Mancntibus et Ulccratis. Hal. 1743. — A. Bergen, De Morb. Amis Interna;. Fr. 1754. — Morgagm', De Caus. et .Scd. Morb. epist. xiv. 3. 5. 7. 11. 13. Kc—A. Duncan, Med. Comment, vol. ii. p. 286 IVeickard, Verm. Schrif- ten. b. i. p. 78. — Heberden, Comment, in Morb. Hist, et Curat, cap. 12. — Frixc, Diss, sistens pra^cipuas Aur. Morbos. Fr. 1789. — Bourienne, in Journ. de Med. t. xli. p. 342. — J. P. Frank, De Cur. Hom. Mori). 1. ii. p. 90. ; et Interp. Clin. vol. i. p. 141. — Tliicle, in Bust's Magazin f. d. Ges. Heilk. b. ii. par. i. p. 164 Starke, in Ibid. b. ii. par. ii. p. 311. ; ot Ibid. b. iv. par. i. p. 197 J. C. Saunders, The Anat. and Dis. of the Hum. Ear. Lond. 1806. — J/ard, Sur le Catarrhe de I'Oreille, 8vo. Par. 1808 Earle, in Trans, of Med.-Chir. See. vol. x. p. 410. — Sloan, in Ibid. vol. xi. p. 330 Duncan, in Edin. Med. and Surg. Journ. vol.xvii. p. 331. — Swan, in Ibid. vol. xvii. p. 401. — Itard, Traite des Malad. de I'Oreille, et de I'Au- dition, t. i. p. 160. etscij. — Andral,'m Diet, de Med.t.xvi. p. 60. — Lallen/and, Hecherches Anat. Pathol, sur I'En- ceph. et scs Dependances. Let. 6. Paris, 1830, 8vo. — J. II. Curt/'.f, Trait, on thePhys. and Pathol, of the Ear, 5th cd. Lond. 1831. — Buchaunan, Op. cit. passwi. ECLAMPSIA. See Convulsions {§ 24, 27.), ICCSTASV. See Cataleptic Ecstasy, &c. ECTIIYIMA. Syn.— "E^Sy^a (from IxWaj, I break forth), Willan. Tip^wivSo?, tcrebinlhus of the Greeks, according toHotrmann ; or 'Eps/3(y9of, Cicer., as it is read by others with more reason, Turner ; also 'Ettivukti? (from km and vh^), owing to its appearing or being aggravated at night, according to Celsus, Galen, I'aulus, and Ai'tius. 'J'erniinlhus, Wiseman, 'J'urner, &c. I'lilifsis Kclliyma, Young. Ecpyesis Ecthyma, Good. I'sydracia, J. 1'. I'rank, Chiarurgi, and J. Frank. Phlyzacion, Paget, Dartre Crus- ECTHYMA — Acute — CunoKrc — Pathology, 743 tac^e, Furoncle Atoiiique, Fr. Erbsenblatteyn, Eilernde Flechte, Germ. FapuLoiis Scall, Classif. — 5. Order, Pustular Eruptions (Willan). 6, Class, Dis. of Excernent Eunctions ; 3. Order, Affecting- the Skin (Good). Ill, Class, I. Order (Author in Preface), 1. Devi>:, — An eruption of large, round, and distinct pustules, seated on a hard, elevated, red base, and terminating in a thick, hard, and dark- coloured scab, leaving a livid spot or superficial cicatrix ; not contagious. 2. 1. Description. — These pustules are always discrete, scattered sparingly, and appear succes- sively in difterent parts of the body ; and rarely terminate in ulceration or tuberculous induration. They may appear in any part of the body ; but they are most frequently observed on the limbs, abdomen, shoulders, breast, and neck — rarely in the face or scalp. They present modified states, according to the causes, the age of the patient, and the severity of the eruption. These Willan has arranged into Ecthyma Vulgare, E. Infantilis, E, luridum, and E. Cachecticum. To these may be added the Ecthyma Syphiliticum (Frank, BiETT, Cazenave, Scheuel, Todd, &c.), the syphilitic affection sometimes assuming the ecthy- matous form. M. Rayer has adopted a simpler and more correct division, viz. into the Acute and Chronic, which I shall here follow. 3. i. Acute Ecthyma ; E. Vulgare, Willan. — In its simpler and rarer form, ecthyma appears in some one part of the body, most frequently on the neck and shoulders, in the form of circunx- scribed reddish elevations, firm to the touch, and distant from each other. Pus soon is formed at the summit of these elevations ; and the pustules are completely developed in three or four days ; their basis being much inflamed, elevated, large, hard, and circular, — of a bright red in young persons, and of a livid red in the aged. Their suppurating summits generally break in one or two days after their formation ; the purulent matter giving rise to a brownish or greenish, and very adherent scab. After one or two weeks, the scabs are detached, and leave a livid red mark, or occasionally very superficial cicatrices, of the size of those of small- pox, but much less deep. The eruption of the pustules is attended with stinging pains in them ; sometimes with tumefaction of the adjoining lym- phatic glands, and is often preceded or accom- panied by chronic inflammation of the digestive mucous surface, which may continue after the healing of the pustules. This variety is seldom attended by fever. 4. ii. Chronic Ecthyjia is much more fre- quent than the preceding, and always consists of several successive eruptions on the limbs, neck, breast, &c., at periods more or less distant. The pustules present the same characters, and follow individually and independently of each other, the same course as above described ; some making their appearance whilst others are suppurating, or even healing. During several months, divers eruptions are thus formed. Besides the successive eruptions, the pustules themselves may be more chronic, their bases assuming large dimensions, approaching those of boils, and being tense and prominent. In these cases, the subjacent cellular tissue is inflamed, their areola) becoming hard and violet-coloured. — Ecthyma luridum ol Willan. Their summits break in eight or ten days, and dis- charge a little sanious or bloody matter, sometimes ulcerate slightly, and are covered by hard and black crusts or scabs, which adhere firmly, and are surrounded by livid red arcolai, which sometimes remain after the crusts have fallen off; this taking place in the course of a few weeks; leaving dark red spots, or livid cicatrices, after them. If the scabs are torn away before the period at which they usually fall oflT, small indolent ulcers, with callous borders, giving issue to a sanious fluid, are often produced. When the pustules remain long sta- tionary without ulcerating, they are occasionally followed by violet-coloured tubercles, which may ultimately suppurate or ulcerate, and more deeply mark the skin. A symptomatic form of this erup- tion, which is often tedious and severe, sometimes attends the cachexia consequent on measles and other eruptive fevers ; but it differs in nothing from the disease now described, excepting in the number of the pustules, and the marked constitu- tional disorder. 5. The successive eruptions characterising this variety are observed chiefly in feeble and ill fed children — (Ecthy)na Infantile of Willan).-— When the number of pustules is small, and the suc- cessive eruptions are distant from each other, there is generally little or no fever. But when the pus- tules are numerous, their bases very large and much Inflamed, or if they ulcerate, there is usually present a co-ordinate degree of fever — Ecthyma Febrile, E. Cacheclicum. — The febrile symptoms sometimes precede, and at other times accompany the severer forms of the eruption, particularly in unhealthy and aged persons ; and are also attended by gastric and intestinal disorder, — by anorexia, pain at the epigastrium, irregularity or constipation of the bowels, a morbid appearance of the tongue, gums, and fauces, and of the eva- cuations, headach, pains in the limbs, lassitude, and by great depression of spirits, — with heat, stinging, tingling, or itching in the pustules. In such cases, as well as in other chronic states, this eruption is often complicated with swellings of the lymphatic glands, with inflammation of the conjunctiva, or of the fauces, or of the pharynx ; with oedema of the lower extremities ; and with other cutaneous eruptions, especially with rupia and furunculus. It is also frequently associated with, or rather symptomatic of, chronic inflam- mation of the digestive or respiratory mucous surfaces and biliary derangement. The duration of chronic ecthyma is always subordinate to the successive eruptions of pustules, to the habit and constitution of the patient, and the treatment employed. It is usually from two to four months ; but it may be longer or shorter. 6. When syphilitic disease gives rise to erup- tions with the characters of ecthyma — E. Sy- philiticum ; Psydracia Venerea, J.Frank; Sy- philide pustuleuse, Phlyzacie, Biett, Rayer, &c. ; Pustular Venereal Disease, Carmichael — the pustules are always surrounded by broad, dark, copper-coloured areolas, and are very • 4arge, indolent, and inclined to ulcerate. The ulcerations, when the scabs are detached, are deep, greyish or pale, unhealthy, with abrupt and violet-coloured edges; but they seldom extend, the scabs gradually reforming over them, and being successively detached, until they heal under appropriate treatment, leaving permanent, 3 B 4 744 ECTHYMA — Diagnosis round, copper-coloured cicatrices. This form | of tlie syphilitic eruption is most common in children born with the infection, the pustules being numerous, flat, and sometimes oval, fol- lowed by ulcerations ; the skin foul and dingy ; and the body emaciated (Cazenave and Schedel). 7. II. Diagnosis. — The pustules of ecthyma are easily recognised, by their form, their size, their inflamed base, and mode of developement ; and distinguished from those of acne, of impetigo, mentagra, or porrigo. — a. However, when the pustules of mentagra or of acne present, as they occasionally do, hardened led bases, they may be mistaken for the phlyzacious pustules of ecthyma, if the induration, rather than the inflammation, were attended to; but the specific characters of these eruptions are suflrciently distinct. — b. The umbilicated pustules of smalt-pox, themultilocular pustules of vaccinia, independently of their con- tagious properties, cannot be mistaken for those of ecthyma. — c. The inflammation mfurnnculus begins in the sub-cutaneous cellular tissue, and extends outwards ; in ecthyma, it commences in the skin, and proceeds inwards ; the former being either single, or much less numerous, and much larger. — d, Rnpia sometimes is coetaneous with ecthyma in its chronic form — E. luridum and Cachecticnm ; the latter seeming to be con- verted into, or appearing to be an earlier stage or less severe grade of, the former, more especially in cachectic children, as correctly alluded to by Mr. Dendy, whose experience in cutaneous dis- eases, as my colleague at the Infirmary for Chil- dren, has been most extensive. But the early stages of both will sufficiently distinguish them from each other, independently of the prominent and thick crusts with the deep ulcerations, charac- terising rupia. — e. The itch presents only a few analogies with ecthyma, when it is complicated with, or when its vesicles are accidentally trans- formed into, pustules. In ecthyma, the pustules are rarely numerous ; they appear successively, the course of each being independent of the rest. But in itch, the accidental pustules form on the most inflamed points ; are always inter- mixed with the small vesicles, by which it is characterised ; are more agglomerated than in ecthyma; are seated chiefly on the hands, be- tween the fingers, especially between the thumb and forefinger ; and are attended by itching ; whilst the pustules of ecthyma produce a sting- ing pain : the itch, moreover, being vesicular and contagious. 8. III. Causes. — Ecthyma attacks all ages and constitutions ; but it is most common in adults of a sanguineous temperament and bad habit of body ; or in persons who have prematurely ex- hausted the powers of the digestive organs, and vital energies of the system generally. It occurs at all seasons ; but is most fre(|uent in spring and summer. Unwholesome and insuflficient nourisii- inent; cold and moist habitations; want of per- sonal cleanliness, especially among those who wear foul woollen next the skin, or who are scantily clothed ; and the irritation of various mineral and pulverulent substances ; are its most common causes. Hence it is pnivalent chiefly among the poor, and mechanics ( I'siidracia Arlijicnm, J. I'uank), whose occupations subject them to those contingencies. Great fatigue, j)rolongcd • — Causes — Treatment. watching, anxiety or distress of mind, inattention to the states of the stomach and bowels, and what- ever lowers the digestive and assimilating powers, and energies of lite, inducing general cachexia, will occasion this form of eruption. The chronic states of the eruption are most frequent in the in- digent ; in persons living on stale smoked or salted provisions ; or whose constitutions are broken down by imprudence, misfortune, drunkenness, age, and irregularities; or in ill-nourished arid de- bilitated children, living in low, damp, dark, and close cellars, &c. Ecthyma often also follows small-pox, the itch, scarlatina, measles, the bites of leeches, and the application of irritating plas- ters, or unguents. The tartarised antimonial ointment produces pustules of this kind. It may be symptomatic of pregnancy, and of several dis- eases of internal organs, especially of the prima via. Indeed, it may be in most instances con- sidered as one of those infinitely diversified ex- pressions of morbid action on the external surface, attendant upon prolonged disorder of the digestive and assimilative organs. Hence it cannot be a matter of surprise to find it sometimes associated with other chronic diseases of the skin. From the foregoing it follows that this eruption is dependent upon the general state of the system, to which' our treatment should be chiefly directed in all its forms. This state is evidently one of debility, accompanied frequently with erethism, or mor- bid irritability, and essentially with altered sensibility and deficient tone of the vascular ramifications in the cuticular and sub-cuticular tissues. 9. IV. Treatment ^. In the Acute form, when the pustules are few, little more is requisite than a mild diet, tepid baths, cooling aperients, and two or three grains of hydrarg. cum creta with dried carbonate of soda or potash, at bed-time. Whey is the best beverage ; and if the patient be robust and the pustules numerous, a small bleed- ing, or leeches to the anus (Cazenave, &c.),may be resorted to. If the stools be morbid, the potas- sio-lartrate of soda, or the soluble tartar, should be given with infusion of senna, and afterwards the compound infusion of roses may be taken with small doses of either of the sulphates ; or these latter may be taken in tonic infusions, with the addition of a little dilute sulphuric acid. 10. B. The Chronic slates generally require gentle tonics, with alteratives, and light nourish- ing diet. — a. When they occur in infants, the nurse should either be changed, or the treatment directed chiefly to her. Where this cannot be done, asses' or goats' milk should be substituted or given in addition ; and the regimen strictly regu- lated. Change of air, warm sidt water bathing or sponging, and gentle alteratives, will also greatly assist the cure. Hydrarg. cum creta, and the carbonate of soda or potassa at night ; the liquor potassai in tonic infusions twice a day, and an occasional purgative in the morning; small doses of the chlorate of potash, or of the iodide of potassium ; warm salt-water bathing, and after- wards the potassio-tarlrate of iron; have been the most cflicacioiis remedies, in these states, in my practice among c/u7(ire»i. The chlorate of potassa, and the other chlorates, were first employed by mc, in this disease, many years ago, at the In- firmary for Children. 11. h. In grown up or aged persons, we should ECZEMA — Pathology always suspect disorder of the digestive and assi- milating functions ; and if tliere be little or no fever, have recourse to deobstruent alteratives, as Plumjieii's pill, with soap, or taraxacum, at night ; a stomachic purgative every second or third morning, and tlie decoction of sarsaparilla ; or mild tonic infusions with soda or potash, in the course of the day. If we suspect congestion of the liver, or find tenderness of the stomach on pressure, small local depictions should be cm- ployed, and repeated according to circumstances, whilst the above depurating and mildly tonic re- medies are continued. ]Mercurials should not be given in large doses. PLUMniEn's pill, blue pill, or liydrarg. cum creta, with taraxacum, inspissated ox-gall, guaiacum, and sarsaparilla, are the most beneficial. The occasional exhibition of purg- atives, or the association of them with tonics, is also necessary, especially if the stools be morbid, and the abdominal viscera require to be excited. In such cases, a prolonged course of tonic or sto- machic purgatives is often necessarj'. 12. c. '\^4ren the cachectic state is complicated with some degree of febrile action {§ 5.), the mild mercurials now particularised should be con- joined with James's or Dover's powder ; and sa- line diaphoretics exhibited at short intervals ; the morbid secretions and fajcal accumulations being evacuated from time to time, by cooling purg- atives. If there be tenderness at the epigastrium, a few leeches applied there will materially assist these remedies. After these, the infusion or de- coction of cinchona with liquor ammonire acetatis, or with the pyroligneous acid, or with nitrate of potash and carbonate of soda ; a course of tonic infusions, with alkalies and the extract of taraxacum ; tepid or warm bathing ; the mi- neral acids with anodynes ; and the other means particularised in the last paragraph ; may severally be exhibited. Having removed fever, and eva- cuated morbid matters, more active tonics, as the quinine in the compound infusion of roses, with tinctura o])ii ; the decoctum cinchonae with the mineral acids, or with camphor and ammonia; chalybeate preparations, sarsaparilla and guaia- cum, the balsams and terebinthinates with mag- nesia, common tar made into pills with this ab- sorbent, the bark of the madar root, &c., may be prescribed. 13. (/. The syphylitic form of ecthyma should be treated in the manner described in the article Acne (§ 30.). Mr. CAnMiciiAEL does not con- sider this eruption as being truly syphilitic, and therefore confides chiefly in sarsapardla with an- timonials and guaiacum. In a case of this form of syphilitic eruption, lately attended by my friend Mr. C. Ilt'rcHiNSON and myself, bichloride of mercury, given in sarsaparilla, was required for its cure, milder means not having succeeded. Dr. A. T. Thomson advises this preparation in minute doses to be given in the decoction of elm- bark, or in the emulsion of bitter almonds. In the cases of infants, some French physicians re- commend the milk of a goat on whicli mercurial ointment has been rubbed. When tlie child is at the breast, the nurse should enter upon a gentle course of the bichloride in the decoction of sar- sapaiilla, or in almond emulsion. 14. e. E.xternal means are sometimes required to remove the irritation attending the eruption, and to heal such as ulcerate. With these inten- 547 tions, tepid alkaline baths ; fomentations with a de- coction of poppy-heads; a weak solution of the .chlorinated lime or soda, especially when there is ulceration ; or solutions of chlorine, or of sulphate of zinc with hydrocyanic acid, or of the nitro- hydrochloric acids,' or of nitrate of silver, &c. ; may severally be employed. Dr. A.T. Thomson recommends the following : — No. 209. B Plumbi Acetatis 3 ss. ; Acidi Hydrocyanic! 3 iij. ; Unguciiti Cctacci 3 iij- M. Fiat Unfueiitum partibus cutis nudis applicandum. 15. y. The diet in the acute form ought to be bland and farinaceous, whey and emollient fluids, or water with a little vinegar, being the chief beverages. — In the chronic states, light and nourishing food, if there be no fever, or after fever is removed, is always requisite. In the more cachectic cases, a small quantity of wine should also be allowed. The patient will always derive benefit from the internal use of tar- water, which may be taken as the common drink in these cases. This medicine, which was for- merly so inordinately praised, and, owing to this circumstance, now so undeservedly neglected, is most serviceable in this and many other chronic afl^ections of the skin. In addition to these, fre- quent tepid and warm baths, and sub.-equenily salt-water bathing, exercise in the open air, change of air, mental recreation, warm and suitable clothing ; regularity in eating, drinking, and sleep- ing ; early rising, and a rcgularstate of the bowels, are important adjuvants. BniLiOG. AND Kefer. — Cftsus, lib. v. cap. 28.— Pmiliis Mgincta, 1. iv. cap. 9.—0ribasms, Synops. ). vii. c. 37 — Avicenna, 1. iv. ten. iii. t. i. c. i., et fen. vii. t. iii. c. i. — i/(i/fmrt«»,; Institut. Sled. 1. iii. cap. 151.— Z). Turner, Treat, of Dis. incident to the Skin, 5th edit. Lond. ITSli. p. \\i. — Lorry, Tract, de Morb. Cutaneis, -ito. 1777, p. 250. J. P. Frank, Dc Cur. Horn. Morb. vol. iv. p. 180. —J. Frank, Praxoos Med. Univ. Praecepta, partis primiE vol. secund. p. 432. — Willan, On Ecthyma, 4to.— R. Carmicliad, Essay onlVen. Dis. confounded witli Syijhiiis, part i. Dub. 1814. ; and on Venereal Diseases, 1825 IV. C. Bendy, On the Cutaneous Dis. incidental to Child- hood, Svo. Lond. 18'27, p. 134. — T. Bateman, Pract. Synop. of Cutaneous Dis. 7lh ed. by Thomson, \}. 2-57 Jlcirson, North American Med. and Surg. Jour. 1826. — Phanbc, Diseases of the Skin, 2d edit. p. 440. ~ C. E. Assclin, Essai sur I'Ecthyma. Paris, 1827. — /'. Rayer, Traite Thcorique et Pratique des Maladies do la Peau, vol. i. p. 4.;o. — Caxcnavc et Schedel, Abr^ge Prat, des Mai. de la Peau. 8; o. Par. 1828, p. 187. — J. Paget, On Classification as applied to Dis. of the Skin, &c. Svo. Edin. 1833. ECZEMA. Syn. — Eczemata (from bkI^im, I effervesce). Ecscsmata, Blancard. Hidroa, Sauvages, Vogel. Ecphlysis Eczema, Good. Ci/tisma Eczema, Young. Hydrargyria, Alley, Mercurial Lepra, Mercurial Disease, Moriarty and Malliias. Hitzhldlterchen, Germ. Dartre Sqnamcuse hiimide. Dartre Vive, Hydrargyrie, Ft. Heat Eruption. Ci.ASSiF. — 6. Order, Vesicular Eruptions (Willan). 1. Group, Eczematu (Alibert). 6. Class, 3. Order {Good). III. CL.iss, 1. OnoER (Author). 1. Defin. — An eruption of minute vesicles, tincontagious, crouded together, and terminating in the absorption of the Jinid they contain, or in superficial ejcoriations, with more or less serous Exudation, concreting into thin fakes or crusts. 2. I. DEScnii'TioN. — This eruption may be confined to a single part of the body, or it may attack several parts, or even the whole surface. It most frequently appears in the axilla, the in- sides of the thighs, the groins, hams, &c. When it is more general, it often extends over the backs 7 46 ECZEMA — Acute — Chronic — Pathology, of the hands, the face, scalp, neck, and fore- arms. It often occurs on the scrotum and verge of the anus, on and around the nipples, and in the vulva. Eczema presents various mo(/i/jcafw«s, distinguished by Dr. \Villan into the £. si)Za)-e, £. impeliginodes, and E. rubntm. jMiNI. Uiett and Raver have, I think more correctly, divided it into the Acute and Chkonic — a division which I shall partially adopt. 3. i. Acute Eczema. — The eruption of the vesicles of this form is preceded and accompanied by a sensation of heat and tingling of the affected parts, aggravated to smarting on being exposed to heat — A. In its most simple form — Eczema sim- plex— the skin still preserves its natural colour; and the vesicles are very small, very crowded, and hardly inflamed at their bases. The serum which Ihey contain is at first limpid, afterwards opaque, milky, or turbid ; and is ultimately absorbed, or dried on the summit of the vesicles after their rupture. In this latter case, which is not frequent, small epidermic flakes, and minute crusts of the size of a pin's head, are observed. These are soon detached ; and often, in the space of one or two weeks, no traces of the eruption remain. Such is the usual course of the slightest state of eczema, as when it follows the action of the sun's rays, or of topical irritants, &c. It occurs most commonly in young persons, particularly females ; is attended by no fever ; but is sometimes compli- cated with lichen, and with psora. 4. B. When the inflammation is more acute, the skin becomes red and shining, as in erythema or erysipelas, at the same time that it is covered by minute vesicles — Eczema ruhrum, Wii.lan. — It commonly appears about the parts provided with hair, as the organs of generation, the margin of the anus, bends of the arms, wrists, and neck ; and is more frequent and much more severe than the foregoing. The vesicles are small, crowded, or confluent, transparent, slightly shining, sur- rounded by red areolag, especially in young, ple- thoric, and strong persons. They remain limpid until they burst, — about the fifth or sixth day, — frequently giving issue to a milky or reddish serum ; and are replaced by small, yellowish lamellae or flakes. In the slighter grades of this variety, the fluid is often absorbed, and the cuticle forming the vesicle exfoliates; but in the severer grades, the contents of the vesicles, when they burst, irritate the already inflamed surface, occasioning super- ficial excoriations, with a more or less abundant exudation of serum, which ultimately lessens, becomes thicker, and at last concretes, form- ing, with the detached cuticle, thin lamella! or crusts. 5. C. The vesicles of eczema may be associ- ated with small psydracious pustules ^ E. n«pe- liginodes of Willan. — The inflammation is tiien carried to its highest degree, is preceded by a sensation of tension in the affected part, of burn- ing heat, or attended by smarting, and intense itcii- ing, and considerable tumefaction. The vesicles are confluent or agglomerated, — at first trans- parent, assuming, in tiiree or four days, an opaline hue, and passing into a sero-puriform state, being moreover interspersed with psydracious pustules. They all discharge a fluid having a faint unpleasant odour, !ind irritating the parts with which it comes in contact. '»• IJ. — a. In the simple acute Eczema there is usually at first not much disorder beyond that of the affected part. But in the £. ruhrum and £. impeliginodes, there is generally febrile action, the intensity of which is proportionate to the local irri- tation. Not infrequently the eruption is preceded by gastro-intestinal irritation or disorder, the symp- toms of which are often very manifest both before and at the time of the eruption. The lymphatic glands in the vicinity of the eruption are often swelled and painful. This form of the disease is almost always consequent upon appreciable ex- ternal causes (§ 15.). — b. hs duration is com- monly from two to three weeks. But the simplest variety may be a week less, and the severest form a week longer ; the affected parts not losing their red colour for a considerable time longer. 7. ii. Chronic Eczema — niay present the three grades of acute eczema particularised above, -—the E. simplex, E. ruhrum, and E. impetigi' nodes, whatever may be the causes which produce them. — a. When the inflammation is aggravated after the breaking of the vesicles, it may be ex- tended to the deeper layers of the skin, and even to the sub-cutaneous tissue. The skin becomes very painful, is excoriated, its cuticle fissured ; and, when it is very much irritated, resembles a blistered surface in a stale of suppuration — the Dartre Squameuse hiunide of Alibert — and con- stantly exudes an ichorous fluid, which resembles drops of dew, and is often so abundant as to pene- trate all the linen wrapped around the part. It is chiefly when the eruption has reached this height, that it is attended with the most insup- portable itchings. The skin is then so acutely inflamed as to be as red as carmine in some parts, llepose at night is impossible, unless at intervals, when the smarting, stinging, or itching subsides ; but this symptom suddenly returns without any obvious cause ; when scratching of the part, some- times until blood is poured forth with the exuded serum, cannot be longer forborne. 8. b. After a time, varying from a few weeks to many months, the inflammation subsides. The exuded serum becomes less abundant, thickens, and forms into thin, soft, yellowish brown, and semitransparent crusts, but little adherent, often very large, leaving beneath them, when detached, an inflamed and a slightly moistened surface. These crusts form more slowly, become drier, &c. j and then, without any obvious cause, the inflam- mation and the serous exudation resume their former intensity ; or, when the healing process has proceeded further, the surface again becomes red, vesicles reform, break, and the affection fol- lows the same course. Lastly, in some cases, no further exudation takes place : the crusts become drier, less yellow, and more adherent ; often thickened, fissured, or chopped, and easily de- tached, leaving the surface but little inflamed. Sometimes, however, in the more extensively dif- fused state of the disease, the skin remains, even for several months, of a bright red ; is covered in parts by dry and thin scales or flakes ; and is in some places cracked, but without any perceptible exhalation. In this case, the eczema resembles certain scaly affections, especially psoriasis, — the more, as these scales arise, not as heretofore, from an exhalation and concretion of lymph, but are, as in the scaly eruptions, the lamellae formed of diseased epidermis. In some cases, especially on the limbs, there remain but two or three small ECZEMA — SpEcinc — Diagnosis, 747 })laces, the skin of which seems thin, stretched, < sliining, and smooth ; its surface being covered by whitish and extremely thin scales, as if formed of epidermis, but without the least appearance of vesicles ; the diagnosis being difficult, if the previous history, or the appearance of vesicles j about the circumference of the excoriated part did not render the nature of the eruption evident. : 9. c. Clironic Eczema, although generally at i first very limited, may extend over a wide surface, so as even to cover a whole limb, or the greater part of the body. — a. When it attacks the face, the redness and swelling, with oedema of the eye- lids, are considerable ; and sometimes associated with inflammation of the conjunctiva. — S. It occasionally is seen in the ears, especially when it affects the scalp, and is then often mistaken for a variety of porrigo, and it is sometimes associated with otorrhoea. — y. When it attacks the scalp, it exudes a viscous fluid having a faint and nau- seous odour. As it subsequently diminishes, it concretes into lamellated or furfuraceous crusts, which are easily detached. At last the secretion entirely subsides, the skin passing into a scaly state, and becoming the seat of an abundant and constant desquamation, the removal of the scales leaving the skin red, shining, and irritated. Eczema of the scalp may continue many months. It is generally attended by swelling of the posterior cervical lymphatic glands ; and it occasions change or loss of the hair. — J. Wlien it is seated in the upper parts of the tliighs, it often spreads to the anus, the scrotum, and to the vulva, occasioning, as indeed in its other severe forms, the most in- supportable stinging and itching. If it extend to the penis, the prepuce is often fissured ; painful itching, irritation, and erections, being caused by it. — e. Eczema may be complicated with lichen, with scabies, with impetigo, and with ecthyma. 10. iii. Specific Eczema — Mercurial Eczema, Mercurial Disease, Schreiber, Moriarty ; Hydrargyria, Alley; Exanthema Mercuriale, J. Frank — is, in its slighter grades, and as re- spects the characters of the eruption, in every re- spect the same as the acute and chronic Eczema rubrum. But the constitutional symptoms are much more severe, and the disturbance of the nervous system much greater, in the former than the latter ; whilst the eruption is much more ge- nerally and more frequently dift'used over the surface. Both in these lesser grades, and in the severer states about to be described, it is ushered in by much constitutional disturbance — espe- cially furred tongue, accelerated circulation, and increased sensibility and irritability. 11. The more severe states of this affection were first described by Benjamin Bell, Spens, Moriarty, Pearson, INI'JMulliv, Chisholm, and Alley. Besides being preceded by a well- marked febrile paroxysm, these grades are often accompanied by difficult respiration, tightness across the chest, and dry cough, the skin being very hot, and the seat of a smarting and stinging sensation. When the disease is consequent on mercurial inunction — for it may also follow the' internal use of mercurials — a diffused redness, with numerous crowded vesicles, supervenes in one or two days, generally on the thighs, scrotum, fore-arms, ficc. In some cases, the eruption pro- ceeds no further than the parts where frictions have been applied, and, after one or two weeks, subsides. But in the severer grades, the skin is extensively studded with vesicles, which soon break, discharging an irritating and offensive fluid, which concretes into large incrustations of a dark colour. At the same time the fauces, and fretjuently the conjunctiva, are greatly inflamed ; and the face itself covered with incrustations, fis- sured in different directions. The eruption ex- tends over a large space, and spreads in succes- sion over most of the body ; the excoriated sur- face being the seat of constant irritation, which is increased by the pressure of the body, and by the substances which imbibe the exuded fluid. The incrustations crack, and expose the raw sur- face in several places, upon change of posture. If the disease increase in severity, or be still more intense from the commencement, the attendant fever assumes a more adynamic form ; diarrhoea is readily induced ; the pain in the chest, and diffi- culty of breathing, increase, and are attended by anxiety at the pra;cordia ; a dirty, bloody expec- toration, indicating an analogous affection of the respiratory mucous surface, is observed ; and ul- timately, if relief be not obtained, the tongue and fauces become dry and dark, and the pulse frequent, small, feeble, and irregular. Sometimes sphacelation of the skin, with delirium or con- vulsions, takes place, and death ensues. — Sucli are the intense states of this disease, according to the physicians now referred to ; but it more fre- quently assumes the milder grade described by Dr. Bate5ian ; and which is characterised chiefly by a less severe and less extensive eruption and excoriation ; by less remarkable constitutional dis- turbance, and by the entire absence, or the slight nature, of the pectoral symptoms. 12. The duration of this particular variety is very uncertain. When a limited part is affected, it may terminate in ten or twelve days ; but when it is more universal and more severe, recovery seldom takes place in less than as many weeks, or even longer. The whole epidermis is destroyed by the more intense grades of the inflammation ; and when the discharge ceases, it lies loose, and, with the concreted matter, assumes a pale brown colour, changing to black, before it falls off in large flakes. The red cuticle afterwards formed is liable, as in some other diseases, to desquamate again and again, even for a third or fourth time, but in smaller branny scales, of a light colour, a roughness long remaining like slight psoriasis. After the intenser forms, the nails and hair fall off; the former, when renewed, being thickened, furrowed, and incurvated. 13. II. Diagnosis. — a. Eczema simplex may be mistaken for soub/es,.especially when affecting the wrist, and the sides of the fingers, or attended by much itching. But the vesicles of the former are flattened and agglomerated ; those of the latter acuminated and isolated. The irritation or pru- ritus of eczema is rather a smarting or stinging; whilst that of scabies is rather agreeable than painful. Moreover, the latter is essentially con- tagious, the former is non-contagious. — b. Eczema 1 rubrum may be mistaken for miliaria ; but the vesicles of the latter are never confluent, as in the former; and are symptomatic of much constitu- tional disturbance, of which the eruption is a less important symptom than in eczema. — c. E. im- petiginodes differs from impetigo in alwaj's occu- pying a large space, the latter being much more 748 ECZEMA— Prognosis confined. The pustules of impetigo have a larger base, and contain a thicker fluid, than this variety of eczema, which is always vesicular at its com- mencement, its secretion never consisting of true pus. Impetigo also gives rise to thicker, rouglier, and more unequal crusts than it ; and is never surrounded by the vesicles of eczema rubrum, as the E. impetiglnodes always is. — d. Eczema, in its chronic state, may be confounded with lichen agrhis ; but the crusts formed by the latter are not so large, nor so thin, as the scales of the former ; and when they fall off, they leave not a red, smooth, and shining surface ; but a certain rough- ness, owingto the small prominent papulse, which are generally evident to the eye, and always to the touch. Also, when lichen becomes dry and scaly, the skin is thicker, and more rugose, than in eczema ; and there are commonly some papula; scattered about, whicli, by their peculiar charac- ters, further distinguish lichen. — e. The vesicles of the early stages, and their presence around the patches of excoriation in the latter periods, as well as the less dry and less friable scales of chronic eczema, will generally distinguish it from psoriasis ; in which also the skin is more elevated or thickened, and more fissured in parts not in- fluenced by the motions of the joints, tlian in any of the states of chronic eczema. 14. III. PnoGNOsis. — In its acute form, this affection is generally of no great importance : but in many of its chronic states it often becomes most distressing ; and sometimes even embitters existence ; opposing, for many montiis, every known means of cure ; and often returning after having been apparently altogether removed. When occasioned by mercury, especially if this mineral have been employed in large quantity, it may assume, as shown above, a most dangerous form ; it therefore requires a guarded, and in some instances an unfavourable, prognosis, particularly when pectoral and nervous symptoms are present. 15. IV. Causes. — «. Eczema is most common in adults ; is somewhat more frequent in females than in males ; and oftener occurs in spring and summer, than in winter. Susceptibility of frame seems to dispose to it ; and there appears to be a predisposition in some constitutions, generally connected with vascular plethora, favouring its passage into a severe and chronic form. — /*. It is most frequently excited by solar or artificial heat; by the contact of either mineral, vegetable, or ani- mal irritants, — especially the oxides of the metals ; by mineral or other powders ; by lime, alkalies, dust, and want of cleanliness; by sugar, &c. I have seen it produced on theinsides of tiie thighs and parts adjoining, liy tiie contact of the leucorrhceal discharge, and by the catamenial fluid. Draughts of cold water when the body is overheated, acid, acid fruits, pickles, and shell- fish will also occasion it, especially in some con- stitutions. ]51isters and plasters, and rancid oils or grease applied to the surface, are also among its usual causes. It sometimes, however, appears without any obvious reason ; at other tin)es, it seems attributable to indigestible and unwhole- some food, to spirituous lieiuors and similar errors indict ; it being in such cases most obstinate. It is not contagious: but M. 1$iktt supposes that it may be communicated in some cases, as when llie exudation continues in contact with a healthy surface. He states, that he has .seen it transmitted — Causes — Treatment. from, and to the organs of generation, by sexual intercourse. The specific form is always caused by the use of mercurials — internal or external — but most frequently the latter; and by expo- sure to cold during their influence. Whether or not the eruption, in such cases, may be in some measure produced by a change in the fatty sub- stance used in oxidizing the metal, is very difl^cult to determine. 16. V. Treatment. — The remedies recom- mended by WiLLAN and Bateman, viz. heating tonics and acids, I have found more generally in- jurious than beneficial. The treatment directed by Biett in his clinical lectures at the " Hopital Saint Louis," and by his pupils Rayer, Cazenavjs and ScnEDEL, in their works, is decidedly more rational and successful. — ^. The slighter grades of the acute disease are readily removed by simple refrigerants and emollient diluents, with cooling aperients, and tepid bathing. But when the eruption is more extended, is accompanied by smarting, or assumes tlie 'form of the Eczema rubmun or E. iinpetiginodes, tepid alkaline or sul- phuretted baths — made by adding from four to eight ounces of the carbonate of soda or of potash to the water of a whole bath, for an adult; or four ounces of the sulphuret of potassium ; — an antiphlogistic regimen ; general blood-letting in young plethoric or robust persons; local bleedings in the vicinity of the excoriations ; and small doses of the »((ra(e (i/' /)i)tos/i, with S()(/a, in muci- laginous diluents ; will^be required in addition to the above more gentle means. I^mollient and soothing applications should also be resorted to. I agree with JMr. Pi.ujibe, in avoiding all greasy applications; and with Sir. Biett, in forbidding the use of sulphur, or repeated doses of mercury, in this state of the disease ; an antiphlogistic and soothing treatment being in every respect the most appropriate. I have prescribed with much benefit the biborate of soda, with or without the nitrate of potash, in emollients in the acute form ; and after the bowels have been evacuated, the nitrate of soda in similar veh.icles. In all cases, the exciting causes should be ascertained and re- moved. 17. B. In the chronic states of this eruption, the antiphlogistic treatment recommended above sliould be employed, where it has been either neglected, or insufficiently tried. Pvrgatives also ought to be frequently resorted to, where the tongue is loaded ,and the evacuations unnatural, and repeated daily until they assume a healthy hue. For this purpose, a mercurial preparation may be exhibited at night, and a purgative draught in the morning. If there be signs of asthenia and a cachectic state of the frame, the purgative should be of a tonic and stomachic kind; the bark o( the ma dar root, or tonic infu- sions, with the nitrate of potash, or with the mineral acids, being taken through the day, but not until mercurial medicines have been relinquished. Dr. Elt.iotson advises, in addi- tion to bleeding and a low diet, the exhibition of mercury until the moutl) is affected ; but the latter part of this practice does not agree with my experience ; the former I have always di- rected. It is chiefly when the excoriations arc extensive, and the exudation co])ious, and after depletions have been employed, that acids seem to be indicated ; morbid secretions having been EDUCATION, evacuated from the prima via. The infusion of | roses, with sulphuric acid and small doses of tiie sulphate of potash, or of quinine, or tlie infusion of cinchona with nitrate of potash, nitric acid, and tlie spiritus ajtheris nitrici, is most conform- able to the treatment advised by other- writers ; but I have seen more benefit accrue from the de- coction or infusion of bark, with nitrate of potash and carbonate of soda ; from the compound decoction of sarsaparilla Cthe mezereon having j been omitted in its preparation) with liquor potas- i sai ; and from the decoction of dulcamara, or of elm bark, with very minute quantities of the bi- chloride of mercury, tlian from mineral acids. I have found Fowi.En's arsenical solution of ser- vice in some very chronic cases, but the afl'ection often returned. It is requisite, in inveterate cases, that the diet should be strictly regulated, and confined chiefly to farinaceous food, and broth with emollient diluents, in order to derive lasting advantage from any plan of treatment. 18. a. External means are especially requisite in most clironic states of the complaint. In addi- tion to those directed above, poultices or cold cream with a solution of the acetate of lead, or lint moistened in a dilute solution of this sub- stance, may be applied to the excoriated parts. When smarting and stinging are great, Dr. A. T. Thomson recommends them to be washed with a mixture of a drachm cf iiydrocyanic acid in eight ounces of the emulsion of bitter almonds. M. GuiLLEMiNEAU adviscs the application of a solution of the nitrate of silver. When the ex- coriations are extensive, and the exudation copi- ous, the linimentum calcis, either alone or with a little of the linimentuni caniphorai, will be very serviceable. The external use of camphor, in all such cases is productive of advantage. Much benefit will often accrue from vapour baths, from tepid and warm alkaline, or sulphuretted baths; and, in the more chronic cases, from sulphureous fumigating baths : but this result will seldom be obtained — more particularly in plethoric and robust persons — until after moibid secretions have been fully evacuated, and bloodletting has been carried as far as ciicumstances will permit. Indeed, any of the numerous applications or combinations of moist heat, in the treatment of acute or sub-acute eruptive diseases, is more or less injurious, un'ess preceded by these measures. — When the eruption passes into a scaly and in- dolent state, some writers have prescribed blisters, or an ointment with the red precipitate, witii the view of exciting a new action in the part ; but these and similar means are inferior to the baths mentioned above. Ointments v/ith the protiodide (9j. t0 3J.) or the biniodidc (gr. x. to ^j.) of iuercurji, promise however greater benefit. When the disease has been of long duration, the arrest of it should not be risked, unless with the 'pre- cautions of occasional vascular depletions, al- vine evacuations, and the insertion of either an issue or seton^ otherwise internal disorder may supervene, or the eruption return, — illustrations of both these results having come before me in ] practice. 19. b. Mercurial eczema requires, according to the grade it assumes, a nearly similar treatment to the above, Biett judiciously prescribes blood- letting at ihe outset ; Pe.\i{so>i, diaplioretics; and Baxema.v, frequent ivarm baths, with diaphoretics PHYSICAL, 749 and opiates ; and subsequently tonics and mineral acids. Dr. MoniAnTY, however, found opium to be a somewhat doubtful remedy. Rlercury ought to be immediately relinquished, and a re- turn lo it either avoided, or ventured on with caution. When the symptoms are severe, and the attendant fever of an adynamic kind, cam- phor, ammonia, the liquor ammonice acetatis, or piiroligttenus acid, or the chlorates are the most appropriate remedies. Either of these should be associated with such other substances as may be appropriate to the circumstances of the case ; and, when the discharge from the excoriated sur- face is either abundant or offensive, employed externallii as well as internally ; the strength of the patient being supported by appropriate means, 20. c. When convalescence fcom either of the states of the complaint is advanced, change of air, regular exercise, avoiding the ingestion of cold fluids when the surface is warm ; a spare, light, and regular diet, with the occasional use of deob- struent or sulphuretted mineral waters; will generally tend to confirm the recovery. BniLioG. AND Refer Aetius, Tetrab. iv. s. i. c. 128. — Paiilus JEgineta, I. iv. cap. 10. — Acluarius, I. vi. caj). 8. — Sennert, Pract. Med. 1. v. par. i. cap. 2 Brendel. De Ino])inatis ex Mercurio dulei noxis, Opusc. vol. i. p. 69. — Scln-eiber, DeMorbo Mercurali. Erf. 1792. — B. Bell, On Gon. Vir. and Lues Venerea, vol. ii. p. 25i8. — Pear- son, On the EHects of var. Articles of the Mat. Med. in Lues Venerea, 2d edit. cap. 13 Butter, Treat, on the Venereal Rose, 1799. — iloriarfi/, A Descrip. of Mercu- rial Lepra, 8vo. 1804. — Spetis, in Edin. Med. and Surgi Jourii. vol. i. p. 7 M'Mul/ms, in Ibid. vol. ii. p. 37 Butter, in Ibid. vol. v. p. 143.^ — C/ii's/wbn, in Ibid. vol. viii. p. '2'J6.— J. Frank, Acta Clinica, vol. iii. p. 22. ; et Praxeog Med. Univ. Pra;c. pars i. vol. ii. p. 177. — Marcel, in Med. and Cliirurg. Soc. Trans, vol. ii. art. 9 Allei/, On the Hydrargyria, or that Vesicular Disease caused by Mer- cury, &c. Lond. 1810. — Mathias, On the Mercurial Disease, 8vo. 1811. — Horn, Arehiv. f. Med. Erfahr. Jahrg. 1812, p. 115 Guille?}ieneau,'De I'Einploi du Nit. dWrgent, fondu dans le Traitera. externe de quclr|ue Mai. &c. 4to. Paris, 1826.— Bai/rr, Traite des Mal. de la Peaii, vol. i. p. 272 Cazenavc et Sc/icdel, Abrcge Prat. lies Mal. de la Peau, p. 74. — Bateman, Syn. of Cut. Dis. by Thomson, \>. 353. — S. Plnmbe, Tract. Treat, on Dis. of the Skin, 3d ed. 1S32, p. 3S0.— W. C. Demly, Treatise ou the Cut. Diseases of Childliood, &c. Lond. 1827, p. I6S. EDUCATION, PHYSICAL. This sub- ject is fully treated of in the article Age, where measures for the healthy developement of the organs and tissues, and for strengthening the constitution, are succinctly stated in connection with the epochs of early life in which they should be adopted (see Age, § 5 — 28.). In the ar- ticle Disease, the numerous causes which im- pede, counteract, or entirely subvert, physical developement and strength are described, and their mode of operation explained (see Disease, § 11 — 62.); and in the article on Infants, va- rious observations not comprised under the fore* going heads are adduced. BiBUOG. AND Rr.FER. — Andry, OTtho\mCi\e,Svo. Beil. 1774. — Wilrzer, Leber die Pliys^ische Erziehung. 8vo. Bonn. 1797 M'illich, On Physical Education, 8vo. Lond. \m\.— Duncan's Annals, 1801, p. 290. Fothernitl, Med. Observ. andlnq. vol. v. p. 160 Underwood, On the Dis. of Cliildren, with Directions for the Management of Infants, Sec, by Merrininn, 8vo. Sth edit. — Si/er, Treatise on the Management of Inlants, &c. 8vo. 1811. — J. B. Davis, Annals of the Universal Dispensary for Children, with Rules for the Bodily Management of Infants, &c. 8vo. Lond. 1821. — Iladcn, Pract. Observat. on the Manage- ment and Dis. of Children, with addit. Observ. by T. Alcnck, 8vo. 1827. — J. Kennedy, On the Management of Children in Health and Disease, &c. 12mo. 1825. — Baticr, Sur I'Educatio:! Physique des Enfans, 8vo. Paris, 1820 . Bullicr, in Diet, de Med. t. i. p. 231 Lachaise, in Ar. chives Gener.de Mt'd. t. ix. p. ISO. — 7)?(i9;«, The In. fluence of Physical Education in producing Deformity of tlie Spine, &c'. 8vo, Lond. 182y. — lioberton, Observat. 750 ELEPHANTIA — Causes — Symptoms and Progress — Pathology. en the Mortality and Physical Management of Children, 12mo. Lond. 1827.— i. Stewart, On the Tendency to Disease in Refined Life, &c. 12mo. Lond. 1828. — J. Darwall, Instructions for the Management of Infants, &c. Lond. 12mo. 1830. — A/. liyan. Lectures on the Ma- nagement of Infants, iSrc, in Med. and Surgical Journ. vols. iv. and v. passim. —See also the Bib/iog. and Re- ferences to the articles Age, Disease, and Infants. ELEPHANTIASIS OF THE ARABIANS. Syn. — Elephantia, Elephantiasis Arabum, Auct. Var. Heniia Carnosa, Prosper Alpinus. Glandular Disease of Barbadoes, Hendy. Bar- badoes Leg. Cochin Leg. Egiiptian Sarcocele, Larrey. Bucnemia Tropica, Good. Elephan- tiasis tuberosa, and Scrotalis, Alibert. Oel- schenkel, Drusenkrankheit, Germ. Lepre tu- berculeuse elephantine, Fr. Dal Fil, Arab. Elephant Leg, Elephant Disease. Classif. — 7. Order, Tubercular afFections (^Bateman). 6. Group, Leprous affections {Alibert), 3. Class. 2. Order {Good). IV. Class, IV. Order {Author). "[.DEFin.-— Hardness, lividity, and great tume- faction of one or both li7nbs, or of the scrotum, S;c., with an irregular glabrous, or scaly state of the skin; endemic chiefy in warm countries. 2. Although this disease was first described by RiiAZEs, it has been very generally confounded in modern times with the elephantiasis of the Greeks, from which it is quite distinct. Its re- semblance, even, to the latter affection, does not sufficiently justify M. Alibert in arranging it under the same genus. It is seated most fre- quently in the lower extremities, but is also met with in the upper extremities, in the scrotum, the vulva, the breasts, and more rarely in other parts of the body. The countries in which it is most common are, Barbadoes, and all the West India Islands; various partsof South America ; Egypt, and several parts of inter-tropical Africa ; Ceylon, the neighbourhood of Cochin, on the coast of Malabar, and other parts of Hindostan; Japan, and some districts of China ; the Polynesian isles ; and the provinces of Asturias and Castile, in Spain. Cases, however, occasionally occur in all the countries of Europe. According to Dr. Graves and Dr. Evanson, a variety of it is com- mon in Ireland. I have seen one case in the Infirmary at Edinburgh ; five in London, one of them very recently under the care of ]\Ir. Morlev, and several, many years ago, in Africa, and on the Continent of Europe. 3. I. Causes. — a. The ^^^'edisposing causes are not sufficiently known. It appears not to have been a very old disease in the West Indies, where it seldom occurs in Europeans. It is most fre- quent in Creoles and in imported Africans, and in places near the sea-coast. In the East Indies, it attacks only the natives. It seems in some instances hereditary, and in others derived from the habits or circumstances of the individual. — b. The exciting causes are also obscure. Hil- lary and Henuy attribute it to sudden vicissi- tudes of temperature. It has been considered that the use of fermented beverages, especially those prepared in warm climates from tiie sap of several s])ecies of ))alm, occasions it, as acid wines ^ive rise to gout, with swelling of the extremities, in this country. The remarkable case of it in both lower extremities, under the care of Mr. Moim.ey, IS tliiit of a man in good circumstances, who has lived well, and resided constantly in London. 4. II. Symptoms and Progress. — The dis- ease often commences without any premonitory signs ; the patient experiencing rigors or chills, with nausea, headache, and intense fever, followed or attended by acute and burning pain, extending in the course of the lymphatics. Subsequently a tense, knotted, and hard chord, very painful to the touch, may be traced to enlarged glands in the groin or armpits. The surface of the part is soon affected by an erysipelatous inffammation, at- tended by a burning and smarting sensation, and by great tumefaction ; the cellular tissue being implicated as well as the skin, which presents no appearance of vesication. These local symptoms are accompanied by fever, ardent thirst, burning heat of surface, &c., alternating with copious per- spirations. All these symptoms are diminished in the course of two or three days, and, excepting the tumefaction, disappear in a short time ; but they return again after irregular intervals, each successive attack leaving the limb more tumefied and hard, until the disease reaches that pitch to which the term elephantiasis has generally been applied. After each of these seizures, the redness of the surface, and particularly that in the course of the absorbents, disappears ; but the part at last becomes irregular, altered in colour, sometimes fissured or cracked, hard and elastic, pressure leaving no impressions after it. The progress of alteration varies extremely — from a few months to many years. Sometimes the disease remains stationary for several years, and without any re- turn of the attacks now described. The cutaneous surface is occasionally pale, rriore frequently yel- lowish, of a dirty hue or livic^ It is often also scaly, resembling icthyosis, rugose, or fissured ; is in some instances covered with soft vegetations ; or with hard horny excrescences ; and is more rarely ulcerated. In other cases, the surface is traversed by enlarged veins ; and very frequently enlarged or varicose veins are seen ramifying from the seat of enlargement, — a circumstance which evidently induced the Arabian physicians to notice this affection in connection with, and indeed as de- pending upon, a varicose state of these vessels. At a far advanced period, the hard and engorged glands sometimes sujipurate, or even sphacelate ; and more rarely, indolent abscesses, or deep- seated suppuration, with offensive discharges, su- pervene in the midst of the enlarged mass. When the disease is seated in the soroduH, this part often becomes very remarkably enlarged. In Egypt and the East, tumours of this description are not infre- quent, and sometimes weigh from 30 to 801bs. Several of these have been removed in Egypt by Clot-bey. One of enormous size was lately operated upon in London, but unsuccessfully. M. DupuYTREN met with an instance of this al- teration in the labia majora vulva;. 5. III. Paihoi.oov. — i. On dissection, the integuments of the part are found thickened and hardened : — 1st. The epidermis is veiy thick, ad- herent, and fissured; — 2d. The mucous layer is very distinct ; — 3d. Tiie papillary body is greatly developed, and readily distinguished from the cutis vera or dermis, the papillae being elongated, en- larged, and prominent (Andral, Chevalier); — 4th. 'i'hc cutis v6ra is much thickened, it some- times being half an incii in thickness; — 5th. 'i'he sub-cutaneous cellular tissue is either thickened, the cellular areola; containing a semiliquid, gcla- ELEPHANTIA — Diagnosis. 751 tlnous matter ; or it is hardened, presenting an intermediate state between a lardaceous and a scirrhous structure, and is more and more dense as it approaches the skin. The muscles under- neath are pale, thin, or softened. The lymphatic glands and vessels present evidence of disease, but not uniformly ; and one or more of the principal veins are generally obstructed or obliterated, as observed in the cases inspected by MM. Bouil- LAUD and Gaide. 6. ii. Nature, &;c, — The structural alterations to which elephantiasis is strictly applicable, are evidently remote effects of various states of mor- bid action, which have either repeatedly returned, or have long continued in the diseased part. From the history of cases, and the changes observed on dissection, the skin, subjacent cellular tissue, the absorbents, and the veins, are evidently more or less implicated ; but it is very difficult to ascertain which of these is primarily or chiefly affected. Tiie principal characteristics of elephantiasis have manifestly resulted, in several instances, from disease of the absorbents, or veins, or both. They have also followed, within the scope of my own observation, a chronic affection of the skin, •which has extended to the subjacent tissues, and, sooner or later, to either the veins or the absorbents, or perhaps to both. I was lately consulted by a female of middle age, who, during convalescence from a dangerous attack of continued fever, more than ten years previously, experienced hard and painful swelling of one of the lower extremities, depending on disease of the absorbents or veins, or both, according to the ac- count she gave. When I saw her, the limb, below the knee, was very hard, and enormously swollen ; and had all the characters of elephant leg ; the skin being irregular, scabrous, livid, and fissured. I directed bandages, and the internal use of iodine ; but after two or three visits, I saw no more of her, and consequently know nothing of the result. Some time previously, a similar case, as respects its origin and history, although not so severe, came before me. It had been of several years' duration ; and had increased gradu- ally after the acute attack in which it originated. The limb was hard, dark red, and livid in parts, somewhat irregular, slightly scaly, and the veins above the tumefied part enlarged. The affection of the skin was here consecutive. Considerable advantage was procured from bandaging, and the internal use of iodine ; but the enlargement is not entirely removed. The patient is still under my occasional observation. More than one of the cases I saw in Africa, seemed, on the other hand, to originate in a very manifest alteration of the cutaneous surface. 7. M, Alard considers elephantiasis essenti- ally to depend upon inflammation of the cutane- ous and sub-cutaneous absorbing vessels and lymphatics. Dr. Musgrave also views it, as it occurs in the West Indies, as a consequence of inflammation of the lymphatics, the inflammation being accompanied with pungent heat, and with redness of the skin, and characterised by great tendency to metastasis. He states, that it usually betrays itself in the scrotum, the mammae, or in some part of the extremities, most frequently about the ancle, or high up the thigh ; and, although at first circumscribed, it often difl'uses itself over the limb. When the glands are uot involved, painful and indurated chords can be traced to the nearest cluster ; but, whatever may be its original seat, the patient is never secure, while the constitutional disturbance subsists, from a sudden retrocession to some vital organ. He has seen it translated from the scrotum to the head ; from thence, after a few hours, descend rapidly to the abdomen ; again migrate to the chest; and return, perhaps, to the encephalon, and prove fatal there; or resume its more harmless situation, and there run its course. While occupying an internal viscus, it gives rise to the usual symptoms of acute inflammation. Dr. Hillary and Dr. JMusgravf, view the local affection as a consequence of fever, which com- monly precedes it for two days. Dr. Hendy, however, contends that the fever is symptomatic of the inflammation of the lymphatic vessels and glands. During the acute stage of the disease, either, perhaps, may precede the other ; but it is most conformable with just views in pathology, to consider the local change as a consequence of the constitutional disorder ; the advanced or chronic state being the result of repeated attacks of in- flammation of the lymphatics or veins, and of the integuments, generally existing together, but often originating in, and continuing more or less con- fined to, either. 8. Inferences. — According to the descriptions furnished by Towne, Hillary', Hendy, Mus- grave, Bouillaud, and Gaide, and to my own observations, this disease should be viewed — (a) as consisting of certain acute, as well as far ad- vanced OT chronic, states, generally connected with a bad habit of body, and each requiring an appro- priate method of cure ; and, (fc) as arising — a. most frequently from inflammation of the lympha- tic system and skin, particularly in warm climates ; B. from inflammation and obstruction of the veins, in some instances, with irritation of the skin in various grades at an advanced period ; and y. from the extension of inflammation from the skin to the veins or lymphatics, in other cases. The tumefaction and hardness are necessary conse- quences of thickening of the cutis vera and sub- cutaneous tissue, with deposition of inspissated lymph in the areola of the latter, whether arising from chronic inflammation of these structures or from inflammation and obstruction of the lym- phatics or veins, or from both these species of alteration. 9. IV. a. The Diagnosis of elephantiasis is very easy in the chronic and far advanced state. In the earlier stages, when commencing in either of the parts noticed above, it should be viewed as inflammation of that part, which, in countries where the disease is endemic, may be followed, if not properly treated, by the organic changes con- stituting its fully formed condition. A\'hen this takes place, the great tumefaction and hardness, and especially the circumstance of pressure not being followed by pitting, with the alterations already described (§ 4.), will sufficiently mark the nature of the disease. — h. The Prognosis is unfavourable, as respects tlie removal of the dis- ease, when it is fully formed, although relief may be obtained, and persons may live very many- years with it. But it tends generally to shorten life, and always to render it much less comfortable. AVhen it is not far advanced, it may be nearly or altogether removed by treatment. The result, however, will very much depend upon the 752 ElMPHYSEMA — Pathology. habit of body, and vigour of constitution, of the patient. 10. V. Treatment. — i. Rhazes and others of the Arabian physicians recommended, in the Acute stage of elephantiasis, general bleeding, emetics, aperients, confinement to the horizontal posture, and spare diet, with cooling epithenis to the part, and subsequently bandages. A similar treatment is very generally adopted in the East; and I believe that it cannot be much improved upon. Dr. Musguave advises, in addition to the local application of warmth, and to febrifuge and purgative medicines, the exhibition of mercury until the mouth is affected, in order to prevent the metastasis of the disease, which, in the West Indies, is so common and dangerous ; as well as the deposition of lymph, to which the hardness and swelling are chiefly owing. The employment of a number oi leeclies, or incisions, asrecommeded by Mr. Copland Hutchison in erysipelas, fol- lowed by poultices, or other emollient applications, may also be resorted to with advantage at this period. 1 1. ii. In the Chronic Uage, the above treatment will seldom be productive of benefit. JM. Raver, however, states, that general bleeding will be of service when the constitutional powers are not much impaired ; and J\I. Lisfuanc advises scari- Jicutions, local bleedings, and compression. Band- ages, and frictions witli various resolvent sub- stances, are more to be depended upon in the most clironic cases, and where the vital energies are too far depressed to admit of depletions. ]3ut even in these,'active purging is indispensable. M. Alabd records a case of twelve years' duration, that was cured by the repeated exhibition of ca- thartics. When the skin is in a state of irritation — is fissured, erythematous, or exudes a fluid concreting into scales or crusts — frictions, or even bandages, are not endured by the patient, and are not appropriate. In these, scarifications and blisters may be employed with the view of giving issue to the fluid infiltrated into the sub-cutaneous tissues. Cauteries and moras have also been di- rected witii this intention. Several writers advise douches of vapour — simple or medicated; and fumigating baths — either local or general. From my experience of iodine, I am inclined to think favourably of it in this disease. In one of the two cases, in which I employed it, manifest bene- fit was derived. It should be prescribed chiefly internally, as its external application is apt to in- crease the local irritation ; and the bowels ought to be freely and frequently acted upon by deob- struent and stomachic purgatives. The limb should be kept as much as possible in the hori- zontal position. Amputation of the affected part has been advised, and practised in a few instances with success. I!iui.i0(;. AND Rei'f.r. — Alliinus, De Elephantia Java' Ndva. Vr. lV»i. — Furcstus, 1. xxix. obs. Siii. — Toiune, On the Dis. most frequent in Karbaitoes and West In- tlics, Kvo. I,oncl. MICt. — I'lillcnrij, in Philos. 'J'raiis. vol. Ixii. — Kiinnefru'sser, Dc Kleph. Morlio India' Orien. CJidoniio. Kil. ilbi. — Hi-iisclhr, h) //r/Z/cj-'s D.sputat. (Jhirurg. vol. v. p. 403.— /////«/»/, On tlie Kpidcmical Diseases of JJarbadoes, &c. 8vo. Lond. 17fil. — Itapport (Ie» Cominissairea de la .Soc. Uoy. des Medec. sur la Mai. Kouge, ou Eleph. &c. Paris, )7K.O. — Conradi, in Arncmann's Masazin, b. i. p. a"). — llcndy. On the fUandular Dis. of IJarb.artcics, &c. 8vo. Lond. 1781. — llrvolat, in 15nl. de la .Soc. dc Medecine, 1810, No. 1. — Atciril, Nonvcllcs Observat sur TElephant. des Arabcs, «vii. Pari*, IHU. ; et de InHamm. des Vaissoaux Al). •orb. Lymph. &c. 8vo. Sid ed. I'aiis, IWi.— C/icvalicr, in Trans, of Med. -Chirurg. Soc. vol. ii. p. 71. — Good, Study of Med. by Cooper, vol. ii. p. 640. — Miisgrave, in Edin. Med. and Surg. Journ. vol. xxviii. p. 46 — Keji- nrdy, in llnd. vol. xiii. p. .54 Graves, in Dub. Hosp. Reports and Comraun. voL iv. p. .M. — Caxciiave, in Journ. Hebdomad, t. iii. p. 146. — Martini et Horack, in Ibid, t. iii. p. 'ilO. — Bateman, Syn. of Cut. Dis., by Thomson, p. 427 — Hoi/illavd, in Archives Goner, de Med. t. vi. p. B(i7. — Guide, in Ibid. t. xvii. p. .533. — Andral, in Ibid. Mars, 1827. — iiavc)-, Des Mai. de la Peau, &c. vol. ii. p. 424. — Caxena've et Scliedel, Abrege Prat, des Mai. de la Peau, p. 476 — Pierquin, Journ. des Progres des Scien. Med. vol. xi. p. 140. EMPHYSEMA. Svn. — 'i.[x<^(,a-nixa (from ly.- tpoa-ao), comp. Iv, in, into, and (pua-am, I blow), 'Ef-iTrvivfxdriDcrig, Gr. Pnemnatosis, Lat. ]Vi}id- geschwulst. Germ. Einphi/sime, Boursoujlure, Ft. Enfisema, Ital. Injiation, Wind Dropsy. Classif. — 3. Class, 2. Order (Cullen). 6. Class, 2. Order (Good). IV. Class, II. Order (Author). 1. Defin. — Soft, elastic tumefaction, occa- sioned by the presence of air, or of any other gas- eous fluid, introduced or developed in cellular parts. 2. Although the sub-cutaneous cellular tissue is the most frequent seat of emphysema, yet other parts of the cellular structure maybe also affected, either separately and independently, or in con- nection with it. Those parts of this tissue, which are the most lax and the least loaded with fat, are most frequently and extensively inflated ; and parts pressed upon by unyielding structures, or by the action of muscles, although they may give passage to the air, admit not of its accumulation. J. P. Frank thinks that lean persons are most liable to emphysema : this may or may not be the case ; but there can be no doubt of these persons being more generally and extensively affected than those who are fat. When air is infiltrated into the cellular tissue, it may be dif- fused or conveyed, by the motion of contractile parts, to places remote from that at which it was introduced. 3. Emphysema maybe divided, according to its seat, into — (a) External, or of the sub-cutaneous cellular tissue ; and, (b) Internal, or of in- ternal viscera. The former may be more or less general, as regards that situation ; the latter is commonly limited in respect of these viscera, but is often the source in which the former origin- ates ; the admission of air into the cellular tissue of the respiratory passages, by a solution of con- tinuity in the lining membrane, or by rupture of tlie air cells, being the cause of the great majo- rity of cases of external emphysema. It may also be considered, in connection with the modes in which it is produced — with reference, a. to its spontaneous evolution ; and, b. to its origin in a solution of continuity in some part of a surface communicating with the external air — to its /«- trinsic, and extrinsic forins. The division into symptomalic or traumatic, and idiopathic or spon- taneous, is faulty ; inasmuch as the spontaneous secretion of air from the blood into the cellular tissue, is merely a rare phenomenon contingent on far advancetl states of disease ; and as the in- troduction of air from without into liiis texture is not a symptom, but an accidental occurrence — is not a necessary or even a frecpient conBe([uence of a wound or injury, but dependent only upon certain circumstances or changes connected with such injury, — I shall, therefore, consider, y/cs(/_v, the Inirinsic, or spontaneously contingent form EMPHYSEMA — I of emp]iysema'; and, secondl}^, the Extrinsic, or the accidental traumatic conditions. 4. I. The Intrinsic, or Spontanemis Contingent Emphysema, is evidently dependent upon a more advanced state of the same general condition of the frame which gives rise to collections of air in other parts, and which, in its slightest grades, often occasions similar accumulations in the bowels and uterus; the air in such cases being secreted from the blood, and consisting, most probably, of certain combinations of hydrogen and azote, or of carbonic acid. Dead bodies be- come emphysematous from the gases disengaged during the process of decomposition ; and a part which is gangrenous, is often also emphysematous from this change. But in these, the colour and cohesion of the parts are remarkably altered, and other proofs of decomposition are also pre- sent. In all diseases affecting the circulating fluid, as typhoid or adynamic fevers, esj)ecially those usually called malignant, and where the blood is coataminated by the absorption or intro- duction of morbid secretions or fluids, the exha- lation of air into the cellular tissue and hollow viscera often takes place immediately after death ; and, in some instances, it is observed in parts be- fore life is extinct. Moroagni remarked it in an advanced stage of fever following the repul- sion of a chronic eruption (Epist. xxxvii. sect.22.) ; Fabricius Hildanus noticed its supervention after small-pox ; and Wilmer, from the absorp- tion of putrid matters. 1 saw lately an iastance of its appearance under the integuments in the vicinity of carious dorsal vertebras, in a young lady. It was limited in extent, but elastic and crepitating. It is most frequently met with in warm and unhealthy countries, and in certain epidemics. I have seen it in the malignant fevers of warm climates ; it has occasionally been no- ticed in epidemic yellow fever. Dr. W. Hunter (^Med. Observ, and Inquiries, vol. ii.) and .T. P. Frank (De Cur. Horn. Mnrbis, 1. vi. p. 38.) observed it very generally in an epidemic affect- ing horned cattle : the latter physician refers to its frequency in the last stage of an epidemic fever that raged in some parts of Germany in 1772, and of a similar fever that prevailed in Italy in 1789; the emphysema appearing about the neck and face, and sometimes extending to other parts of the body. Huxhaji (illerf. Ob- serv. and Inquiries, vol. iii. p. 33.) remarks its connection with putrid fever and sore throat, as well as with scurvy ; and records a case where it occurred, the patient recovering nevertheless. I saw it in a case of scarlet fever that terminated fatally, and in another that recovered ; and I agree with HuxiiAM in considering its appearance about the neck and upper part of the breast as not rare in this and similar diseases. The only question as to these cases was, whether or not the air was evolved or secreted from the blood, or was intro- duced from without at some part of the respiratory passages in the manner about to be explained. Frank and some other writers likewise notice its supervention upon erysipelas, when the latter is prevalent in crowded hospitals. IMiNI. Rullier and Delarociie have seen it occasioned by poisoning. 5. The intrinsic or spontaneous appearance of emphysema in such cases may be imputed to the partial decomposition or alteration of the circu- lating fluids consequent upon failure of vital Vol. I. NTRiNsic — Extrinsic. 753 power. This is evidently the case in some in- stances, especially when the swollen parts aje discoloured, and when it comes on near the period of dissolution. But cases sometimes occur where no evidence of decomposition can be traced, depression only of vital power being pre- sent. J. Hunter, Frank, Baillie, Home, Davy, and others, have adduced evidence of the evolution of air from the blood-vessels in- dependently of such change. The experiments of Dr. Edwards prove that azote, and the other constituent gases of the atmosphere, are more or less absorbed into the circulation, and at'ter- wards discharged from it, chiefly by the mucous surface of the respiratory organs and digestive canal ; and that these actions are regulated by the state of the vital energies of the system. It therefore cannot appear surprising that air should be extricated into the areolaj of parts of the cel- lular tissue, as well as from mucous surfaces, in certain states of morbid vascular action connected with depressed vital power. Besides, we know that air is secreted into the sound or air-bladder of numerous species of fish. As to the chemical constitution of the air, which is spontaneously evolved in cellular parts, we have very imperfect inibrmation. It is very probably nearly the same as that found in the digestive canal, and which consists chiefly of azote, carbonic acid, hydrogen, and certain of its combinations. In a case re- corded by M. Bally {Land. Med. and Phys. Jflurn. for .Tune 1831.), in which general emphy- sema occurred immediately after death, with signs of dissolution of the blood, the air was evi- dently of the last description; it having taken fire from the flame of a taper, and burnt with a blue and white flame; and the edges of the aperture through which it, escaped having been consumed. Gaseous fluids may be evolved also in the cavities of the peritoneum and pleura : but generally in consequence of the decomposition of fluids, &c. previously aflTused in these situations; although they may likewise be secreted by these surfaces; or common air may accumulate in the pleural cavities, owing to a communication with the vesicular structure of the lungs. (See Perito- neum, and Pleura.) 6. II. Extrinsic, or Accidental Traumatic Emphysema, sometimes appears in the course of various diseases, and from external injuries — of those maladies in which the respiratory functions become especially affected, more particularly the expiratory actions; and from laceration, rather than from puncture or incision, of parts con- cerned in these functions. It always proceeds, unless in a remarkably rare form of this species, from the passage of common air into the cellular tissue, through a breach of continuity in some part of the respiratory apparatus. — («) It may take place from rupture of the membrane lining the nasal fossce, oT from wounds communicating with the lachrymal sac or duct; the air passing into the cellular tissue, upon forcibly blowing the nose. jNI. JMeniere instances two cases of this description. J. P. Frank mentions its occur- rence from playing on wind instruments, whilst the insides of the cheeks are abraded or lacerat- ed. M. RuLLiER states that the prisoners in the Bicetre at Paris produced it by puncturing the inside of the cheek, and forcing the breath into the puncture. 3 C 754 EMPHYSEMA — Extrinsic. 7. (b) Emphysema is not infrequently occa- sioned by injuries of the larynx ov trachea, espe- cially when the parts are lacerated by wounds perforating them, particularly when the external outlet is partially obstructed; and by surgical operations on the neck (A. Burns). Rupture of the rings of the trachea will also produce it. ScHREGER adduces an instance of it from fracture of the thyroid cartilage. Ulceration in these situations, with sthenic vascular action, can hardly be followed by this contingency, as the lymph effused in the areola; of the surrounding cellular tissue quickly coagulates, and prevents the introduction of air. But when ulceration occurs in connection with asthenic action, em- physema may supervene ; as the lymph thrown out in this state of the system is not coagulable, and consequently cannot prevent the air from being forced into the cellular structure. 8. (c) Emphysema often proceeds from rj/p- ture of the air-cells, and interlobular cellular tissue, the air escaping into the latter, and passing along it to the superficial parts of the body, owing to the entire state of the pleura. When the rupture is confined to the air-cells, the air passes no further than the lobule in which the lacerated cells are situated ; but when the connecting tissue is also torn, the air escapes into it, and along its areola;, by the root of the lungs and mediastinum, until it reaches the cellular tissue of the throat, producing a crepitating and an elastic swelling above the clavicles, which is soon diffused over the face, chest, and trunk. This form of em- physema is occasioned chiefly by violent efforts, and straining, as lifting heavy weights (Hicks, Meniere), and child-labour (Hamilton, Hal- LiDAY, Blagden, Bland, Simmons, &c.), and by obstacles to respiration, as in hooping cough, pneumonia, bronchitis (Desbois, Ireland, &c.), hysteria, &c., and in cases where a foreign body has fallen into the trachea (Louis, &c.). I have seen it occur in the advanced stage of measles complicated with severe pulmonary affection. I lately attended a case of this description with Mr. Austin, in which the only matter of doubt was as to its having arisen spontaneously, or from the interruptions to respiration in the way now ex- plained. But the great difficulty of breathing that was present in consequence of infiltration of air into the interlobular tissue and mediastinum, readily pointed out its origin in this case, as it will in all others of the same kind. Dr. Druim- breck has recorded a similar instance, in which he could find no appearance of rupture in the bronchial lining ; but it is in the vesicular struc- ture where it should have been looked for ; and there it is manifested chiefly by the effects in ques- tion. The emphysema that is rarely observed in the course of diseases of the lungs characterised by dyspnoea, and of rabies, hysteria, &c., is evi- dently of the kind now described. 9. (f/) Lareratic7}S or perforations of the pleura", costalis and pulmonalis, and /»»?":, by fracture of the ribs, and penetrating wounds, are the most frequent causes of emphysema. When the frac- tured end of n bone lacerates both pleura;, and the superficial porlion of lung, the inspired air sometimes passes from the vesicular structure of tlie latter, accumulates in the pleural cavity, and is forced, by efforts at expiration, through the breach in the costal pleura, into the cellular tissue. Frequently, in consequence of the effu- sion of blood or lymph, the wound in the lung is in a short time so far closed as to prevent the further escape of air into this cavity ; that which was effused being absorbed, and respiration be- coming less laborious. In this case, the emphy- sema soon subsides, owing to the absorption of the infiltrated air. But it occasionally happens that the wound in the lung continues open ; and, upon each dilatation of the chest, air is drawn into the pleural cavity, and forced by each expir- ation into the cellular tissue of the thoracic parietes, until the inflation becomes enormous. When this occurs, respiration is remarkably laborious ; in- spiration is very rapid ; expiration is slower, and, more forced, and is quickly succeeded by inspira- tion ; the whole process being short, and apparently attended by an effort to expand the lungs, which are compressed by the air accumulated in the pleura. Emphysema is less frequently occasioned by penetrating wounds of the thorax and lungs, than by lacerations from fractured ribs ; owing to the more constant effusion of blood or lymph from the wound in the lung after the former than after the latter, as shown by the experiments of Hewson ; and to the escape of the air from the pleural cavity by the external outlet in the thoracic parietes. It sometimes, however, arises from this cause ; closure of the wound in the in- teguments, or some other obstruction in its more external part, occasionally allowing the air ac- cumulated in the chest to be forced into the cel- lular tissue during expiration. Penetrating wounds of the chest very seldom produce emphysema, unless the lungs be wounded, and then the reason of its occurrence is obvious. But they may oc- casion it without any injury of the lungs, owing to the air being more readily drawn into the pleural cavity during inspiration, than expelled from it during expiration. 10. (e) Ulceration of the pleura costalis and pulmonalis, and of the lung, has in rare instances produced emphysema, chiefly as a consequence of circumscribed empyema, that has opened into the bronchi. In this case, a communication is formed by ulceration between the cellular tissue of the thoracic parietes and the vesicular structure of the lung, the surrounding pleura; being gene- rally adherent. An abscess in the parietes of the chest likewise may point internally, and, having produced adhesion of the pleuree, burst into the lungs, and be followed by emphysema. But this last result will not occur in either of the above cases, unless the surrounding tissue is permeable by air, owing to coagulable lymph not having been formed in it. If this tissue be impermeable, then the air will only replace the matter that is evacuated, and give rise to circumscribed em- physematous swelling or swellings, as in a case recorded by Dr. Duncan (Trans, of Med. and Chirurg. Soc. of Edin. vol. i. p. 455.). A still more rare form is that following empyema which has opened externally through tlie thoracic pa- rietes. Ulceration may also take place in the lungs, and through the investing membrane, either from a vomica or tubercles, and the air be drawn into the cavity of the pleura; and, having accu- mulated there, forming pneuma-thorax, be forced through an ulcerated opening in some part of the costal pleura, into the cellular tissue of the tho- racic parietes, and be thence dift'used to a greater EMPHYSEMA — Diagnosis or less extent over the body. Cases of this kind have been described by Kelly and Halliday. 11. (/) The rarest form of extrinsic emphy- sema is tliat consequent upon the escape of air, through a rupture or ulcer of the internal coats of some portion of the alimentary canal, into the sub-serous cellular tissue, and the diffusion of it through this tissue. Haller (Opusc. Pathol. vol. iii. obs. 31. p. 309.), met with a case of this kind in a female ; and JM. jMarjolin (Archives G6n6r.de M£d. t. xi. p. 112.) records an instance of it after a contusion of the abdomen which had ruptured the small intestines. MM. Chabert and HuzARD (Observ.svr les Animaux Domest.S^c. 8vo. Paris, 1792.) state that this form is not rare in ruminating animals. 12. III. Diagnosis. — Emphysema of the sub- cutaneous cellular tissue is readily recognised by the uniform, light, elastic, and crepitating swelling constituting it. But it is often by no means so easy to determine the manner in which it has arisen. What has been adduced above on this subject will generally enable the inexperienced practitioner to recognise the different forms of its origin. 13. IV. Prognosis. — Our opinion of the tei- mination of emphysema will necessarily depend upon the causes that have produced it, and the state of the respiratory functions. The inflation is, in itself, but of little consequence, as air may be introduced to a great extent into the sub-cuta- neous tissue without giving rise to any serious re- sults,— unless, indeed, in a cachectic and asthe- nic state of frame, when puncture or laceration of this tissue, or of the integuments, is very liable to be followed by gangrene of the part, as in the case recorded by M. Meniere. Aristotle and Pliny allude to a practice of inflating the sub- cutaneous tissue of animals, with the intention of rendering them speedily fat. Schulze states, that this process makes them first dull ; and that the emphysema generally disappears in two or three days, after which they recover their spirits, ac- quire a voracious appetite, and, in a few weeks, become very fat. Haller, Gallandat, and SoEiiMERRiNG, adduce similar facts in proof of the introduction of air into the cellular tissue being in itself perfectly innocuous ; and Achard con- tends that the insufflation of carbonic acid gas into this tissue is the best mode of administering this fluid in the treatment of disease. Fabricius HiLDANus (Cent. iii. observ. 18. p. 369.), Dionis, Ambrose Pare, and Keraudren (Bullet, des Scienc. Mtd. t. iii. p. 422.), mention instances of the insufflation of air into the sub-cutaneous cel- lular tissue of children, with the iutention of ex- citing compassion, or of showing them as curio- sities. Sauvages states, that a soldier was simi- larly inflated during sleep, to an enormous ex- tent, without any further inconvenience than the impediment it occasioned to the respiratory ac- tions. I therefore infer, with M. Bresciiet ( Diet, des Scienc. Mtd. t. xii. p. 20.), that the prognosis in emphysema is altogether dependent upon the disease or injury on which it is contingent, and not upon itself, or even upon its extent ; the de- gree to which the respiratory functions are disor- dered being the chief indications of danger, as evincing the effusion of air either into the sac of the pleura, or into the interlobular cellular tissue of the lungs. Spontaneous intrinsic em- •— Prognosis-^ Treatment. 755' physema may be viewed as generally a fatal occurrence. 14. V. Treatment. — i. Of Intrinsic JUmphy- sema. — Tliis species can be remedied only by re- storing the depressed vital power, and removing the morbid condition of the local and general cir- culation on which it depends ( § 4, 5). The means most appropriate to these ends have been described in the articles Blood (§ 157.), and Debility (§ 38.), to which the reader is re- ferred. Scarifieations and punctures have been recommended when the inflation is considerable ; but there is great danger, in this state of disease, of gangrene following puncture of the skin, es- pecially if it be resorted to in hospitals, or in con- fined or ill-ventilated habitations. More benefit will follow gently stimulating and astringent lini- ments and epithems applied to the emphysematous surface and vicinity, and active stimulants, tonics, and antiseptics employed internally. 15. ii. Contingent Extrinsic Emphysema must be treated with strict reference to the nature of the injury that has occasioned it, and the state of the respiration. — When it has arisen from penetrating wounds of any part of the respiratory apparatus, enlargement of the external wound will generally be requisite, in order that the air may have a direct external outlet. If it proceed from frac- ture of a rib, the application of a bandage may be serviceable, if the breathing be not materially oppressed; but when respiration is difficult, and pneuma-thorax is present, a bandiige is generally injurious, by preventing that degree of dilatation of the lungs which is absolutely requisite to the continuance of life. If the pneuma-thorax from this species of injury, in addition to the external emphysema, be so great as to threaten suffocation, it will be necessary to m.ake an opening directly into the pleural cavity as much as possible in the situation of the lacerated pleura costalis. If the inflation be so extensive as to prove, of itself, an impediment to the respiratory actions, and if the vital powers be not greatly depressed, and the frame not cachectic, several punctures, at a con- siderable distance from each other, may be re- sorted to. When the emphysema is more obvi- ously dependent upon rupture of the air-cells, and the escape of air into the interlobular tissue, &c., anndunes should be administered in order to lower the force of the respiratory action ; and bloodletting practised, to lessen the quantity of blood to be acted on by the inspired air.' In most instances of traumatic emphysema, the abstrac- tion of blood is requisite, unless the patient is sufficiently reduced by heemorrhage consequent on the accident. If inflation take place to a very great extent, punctures sufficiently deep to reach the cellular tissue may also be practised in this class of cases, but only in the circumstances and with the precautions now stated. M. Desbois advises, in preference to scarifications or punc- tures, the surface to be enveloped in cloths moist- ened with camphorated spirit, or a slightly as- tringent lotion. Unless the inflation by its extent greatly embarrass respiration, little need be at- tempted beyond the means now mentioned. In cases, however, characterised by great difficulty of breathing consequent upon penetrating wounds of the chest, or fractures of the ribs, or on ul- ceration, and which are generally preceded by pneuma-thorax, paracentesis of the chest som.e- 3C 2 756 times cannot be dispensed witli. But it is neces- sary, previously to performing tliis operation, to observe and determine early and accurately, by auscultation and percussion before the inflation becomes extensive, in which pleural cavity the air has accumulated ; because an opening made on the sound side, by causing collapse of the lung, •would have a fatal result, as in a case recorded by Dr. Halliday. The seat of the injury, and the part at which the emphysema first appeared will generally indicate the situation where it should be performed. (For Emphysema of the Lungs, see Lungs — Emphysema of.) BiBLioo. AND Refer. — Aettus, Tetrabibl. iv. ser. iii. c. 2. Oribasius, Syiiops. 1. vii. c. 50. — Pauius jEgineta, I. iv. c. 28. Plater, Observ. 1. iii. p. 632. — Fabricitis Hildanus, Cent. v. observ. 70. — Riverius, Observ. cent. ii. II. 69. — Tlmitlier, Observ. Med. Pract. Paris, 8vo. 1732. — Schulxc, De Emphysemate. Hal. 1733, in Holler's Coll. Diss. Chir. vol. ii. n. 56 D. Hoffman, De Aere Micro. cosmi Factitio. Tub. 1737, in Halter's Coll. Dis. Med. Pract. vol. iii. n. 81. — Morgagni, De Cans, et Sed. Morb. ep. liv. 37. — iV. Hunter, in Med. Observ. and Inquiries, vol. ii. n. 2. — Leake, in Ibid. vol. iii. n. 4. — Mussel, in Ibid. vol. iii. n. 36. — Hewson, in Ibid, vol. iii. n. S5.—- Lloyd in Ibid. vol. vi. n. 19. — Tiimnermann, De Em- physemate. Rint. 1765. — J. Hunter, On the Anim. Oiconomy, p. 207. — Hicks, in Med. Communicat. vol. i. n. 13. — Simmons, in Ibid, vol. i. n. 14. — Bland, in Ibid, vol. i. n. 14. — Tondu, in Journ. de Med. t. xxv. p. 464. — Herbin, in Ibid. t. 1. p. 465. -r Barriere, in Ibid. t. liv. p. 246. — Kelli/, in Edin. Med. Comment, vol. ii. p. 427. — Koelpin, in Acta Soc. Med. Hafn. vol. i. n. 23. — Tho- inann, Annales Wirceburg. vol. i. p. 176. — Baillie, in Trans, of a Society lor Improv. of Med. Knowledge, vol. i. n. 11. — Hebenstreit, De Emphysemate. Lips. 1803. — J. P. Frank, De Cur. Horn. Morb. 1. vi. pars i. p. 46. — Hal- liday, in Med. and Surg. Journ. vol. iv. p. 351. — Verheyen, Essai sur I'Emphyseme, &c. Paris, 1809. — Schreger, in Horn's Archiv. Jan. 1810, p. 65. — Murat, in Diet, de Medecine, t. vii. p. 395. — Ireland, in Trans, of Coll. of Phys. of Ireland, vol. iii. p. 112 Dumbreck, in Trans, of Med. and Chirurg. Soc. of Edin. vol. iii. p. 566. — Me. niere, in Archives Gen. de Med. t. xix. p. 341. — J. Davy, in Philos. Trans. 1823, — Bouillaud, Diet, de Med. et Chiiurg. Pract. t. vii. p. 112 ; Lond. Med. Gazette, vol. iii. p. 300. — Piedagnel, Journ. Hebdomad, de Med. t. iii. p. 512. EMPYEMA. See Pleura — Diseases of. ENDEMIC INFLUENCE AND DIS- EASES. Ci.AssiF. — General Pathology. — .Eti- ology. 1. This subject is considered in many of its r.iore general relations, in the articles Cluiate, and Disease; but there remain a few observ- ations, which do not fall under these heads, to be made at this place. The word endemic has usu- ally been applied to that influence exerted by the geology, soil, water, and air of a particular dis- trict or country, and by occupations and modes of living, upon the constitution and health of its inhabitants ; and the more common and uniform results, or the consequent forms of morbid action, have been denominated endemic diseases. Al- I.. ough IIippocrati s directed attention to en- demic influences in hi? Treatise on Airs, ]Vfiters, and Localities, but little notice was taken of the subject by medical writers until about the end of the seventeenth and commencement of the eighteenth century, when several works on the maladies prevalent in particular districts, and a few on endemic diseases generally, made their appearance. 15efore this period, iiowever, Caius had offered some observations connected with en- demic influence in his work on the Sweating Sick- iiess. A few remarks of the same kind are to be found in An drew Boroe's Dietani of Health; and in Hamesey's Origination of W(n-nis, &c. The earliest work that treated of the general en- endemic influences. demic diseases of England was published in Lon- don in 1672, by Claromontius, a native of Lor- raine, and dedicated to James Duke of Ormond, to whom he was probably domestic physician. In an address to the London College of Phy- sicians, he apologises to that learned body for having encroached, he being a foreigner, upon a province which peculiarly belonged to them. The apology, as remarked by Dr. Duncan, was a tacit rebuke, and the severest he could have given, to a body which, even to the present day, has hardly interested itself in the advancement of medical science. In his enquiry, he enters upon the consideration of the extent to which venas- section is required by the nature of the endemic diseases of this country ; and concludes that, although well-timed bloodletting is a judicious practice, yet purging is, upon the whole, oftener required, and better adapted to their cure. After the treatise of this enhghtened writer, others ap- peared, which comprised subjects connected with endemic influences and diseases, either incident- ally or specially. But sufficient reference will be made to. them at the end of this article. 2. A reference to the topics treated of in the articles Cli.mate, and the Causation of Disease, will show that endemic influences are recognised rather by their effects than by positive characters, or manifest and demonstrative properties ; and that they are results of several coincidences of physical phenomena and moral conditions, which often vary, and consequently give rise to modified effects. When we reflect that they are con- sequences of the geology, soil, elevation, temper- ature, prevailing winds, vegetation, and the vici- nity of wood and water ; and not of these merely in their various states and associations, but of these in connection with the avocations, the modes of life, and the quality of the food of the inhabitants, modified by moral agencies ; we can- not be surprised at the diversity and importance of the resulting effects, and at the general uni- formity they frequently present, in certain cir- cumstances or combinations of these causes. In estimating endemic influences in relation to the resulting maladies, there are other agents, besides those now enumerated, that should be taken into consideration. The indolence or activity of the inhabitants ; their privations and comforts ; their states of filth or cleanliness ; their habits of life, and employments ; their ignorance and mental improvement ; and their social, moral, religious, and political conditions ; are most material ele- ments in the general amount of endemic caus- ation. It should not, however, be overlooked, tiiat these diversified agencies act and react in developing, counteracting, or entirely removing each other ; that the circumstances of locality will modify the moral and social conditions of its inhabitants ; these latter, in their turn, giving rise to numerous collateral changes, and to im- portant alterations even in the conditions of sur- rounding nature, as demonstrated by the march of civilisation and social improvement in both the old and new worlds. A casual view of the in- fluence of elevated and mountainous situations upon the physical and moral condition of its in- habitants, in relation to those of the plains, or of low, confined, and miasmatous localities, espe- cially witliin tiie tropics, and in some of the more southern countries of Europe, will sufficiently ENDEMIC INFLUENCES. 757 prove the importance of this suLject ; and if we take a closer view, so that the individual effects upon the frame and on the mind become appa- rent, the propriety of studying it in its practical bearings must be evident. 3. It was stated in the article Climate, that the constitutions of the natives of a particular country should be considered in many respects as products of the soil and climate, more espe- cially vvhen its physical circumstances are differ- ent from those which most generally obtain on the face of this globe, and are productive of dis- ease in the more civilised racesof our species. In such a country the human frame has become adapted to the climate to so great a degree as to render it a distinct variety from the rest of the species. We observe this in most low and swampy districts within tlie tropics, and emi- nently in Africa, many places of which could not be long habitable to others of tlie species constituted in any respect differently from the negro. The native frame, being thus assimilated to the climate, and modified by, and suited to, its endemic influences, is not injuriously impressed by them. But when persons whose constitutions are formed by influences of a different, or even of a modified, character, migrate to a country differ- ently circumstanced, disease will sooner or later ensue. This susceptibility to endemic influences different from those to which the constitution has been accustomed, and by which it has been most remarkably modified, is evident in all the races of man, and is evinced more or less in all changes of climate ; — by the inhabitant of elevated situ- ations, when he visits the low grounds and plains, even under the same latitude ; by the native of northern Europe, when he visits the shores of the INIediierranean — still more manifestly when he migrates to hot climates — and much more remark- ably when he resides in low and marshy inter- tropical districts ; by the negro, the JMalay, and the Hindoo, when they pass from the warm, moist, and low plains, on which they have been reared, to more elevated situations, or to temperate or cold countries; and so on, as respects all classes of our species, when the change involves a change also of the physical conditions of surrounding nature. This susceptibility is most remarkable in youth and early manhood, and diminishes gra- dually until age advances, and then the powers of life more readily sink when the change is made to a more unhealthy locality. 4. As endemic influences are frequently the result of certain conditions of locality, inde- pendently of difference of latitude, or even of tem- perature, and often depend upon one or two circumstances connected with wood and water, or with the nature of the soil, or with elevation merely above the level of the sea, a change of situation apparently slight, may be essentially great, owing to these or other circumstances, and be followed by an injurious impression of the resulting influences upon persons not accustomed to them. The waters of large towns, that are, to a certain extent, impregnated by decomposed < animal matters, seldom materially disorder the bowels of those accustomed to them, unless their impurity be very great, although they may other- wise affect the health ; but they will seriously de- range the bowels of persons, even in the vicinitj', who have not been in the habit of using them, as shown by the different effects of the water of the Seine, at Paris, upon the inhabitants, and upon strangers in that city. Impurity of the water is, in all climates, an important source of endemic diseases, particularly of those seated in the digestive canal and circulation, as dysentery, diarrhoea, and fever; but the soil and vegetation, in con- nection with the extent to which they are watered, witii high ranges of temperature, and with situ- ation particularly in respect of elevation, adjoin- ing acclivities, woods, &c., are the chief sources of these and all others of this class of maladies. The inhabitant of the high lands in the interior of Mexico is seldom affected by fever ; but if he remain any time in the low grounds on the coast, in the same latitude, as at A'era Cruz, he is as liable to be seized by the malignant remittent endemic in that place, as the person who has migrated from Europe. 5. i. Of the chief Sources of T^ndemic Influence. — Low marshy places, and grounds subject to inundations, or saturated with moisture, and abounding with the exuvia? of organic substances ; thick woods and jungles, particularly in warm climates; argillaceous soils, and the deep alluvial earth in the bottom of valleys, on the banks of rivers, or near the level and shores of the sea or of large lakes, or the embouchures of rivers, es- pecially if subjected to a high temperature ; are most productive of endemic diseases, which vary in character with the range of temperature, in connection with the degree of humidity, the ex- tent to which the soil is exposed to the direct rays of the sun, and the prevailing states of the at- mosphere. It may be inferred from the writings of the ancients, particularly those of Hippo- crates, LivY, Tacitus, Plutarch, and Diony- sius of Halicarnassus, that the insalubrity of these places was well known to them, and that the means of removing and counteracting it were as well understood then as at the present day. Hippocrates, in his Epidemics, states that the city of Abydos had been several times depopu- lated by fever ; but the adjoining marshes having been drained by his advice, it became healthy. The lake Averna, mentioned by Virgil, is, probably, a poetical exaggeration of the effects arising from marshes ; and the deeds of Hercules, the metaphorical record of his success in removing these sources of disease. 6. Pools and ditches containing stagnant water, or nearly or altogether dry, after warm weather ; and grounds used for the cultivation of rice ; are also important sources of endemic influence. The former, in tlie vicinity of villages, frequently re- ceive animal exuviae, which render the exhal- ations from them much more noxious ; and the latter are especially injurious to white cultivators. The extent of disease proceeding from this source has been shown by Lancisi, Bailly, Mont- falcon, Irvine, Tarc;ioni, Grottanelli, and others, to be, in many places of Italy, Sicily, and Greece, so great, as to occasion more than two thirds of the average mortality. The exposure of a rich, wet, and low soil, abounding with vegetable matters undergoing decay, after repeat- ed irrigations and inundations, to a powerful sun, is the circumstance to which the insalubrity or rice-grounds, and many other places, chiefly is owing. In all intertropical regions, where the nature of the locality admits only of a rice culti- 3 C 3 758 ENDEMIC INFLUENCES. vation, Europeans are more or less subject to endemic disease ; and although the dark races are much less liable to it, owing to the adaptation of their organisation and functions to this parti- cular soil and climate, yet they are occasionally affected by it in a slighter degree, and in a modified manner. Inundations, whether from the sea, or from the swelling of rivers, or from an admixture of sea with river water, render low grounds particularly insalubrious upon their be- ing exposed to the action of the sun's rays. Sea water, owing to the quantity of animal matter it contains, soon becomes offensive when it stagnates on a soil abounding with vegetable substances ; and the inundated grounds and islets in the course, or at the mouths, of rivers, are generally left covered, when the waters subside, by mud and slime, which become an additional source of miasmata. The inundations by the sea, wliich have occurred in many places in Holland, have been the cause of mucli disease, upon the ex- posure of the soil to the sun during the following summer and autumn. 7. When low and moist grounds, and deep or rich soils, which have been covered by large trees or by water, are cleared, or exposed to the action of a warm sun, especially in a hot country, they emit more noxious emanations than in their un- reclaimed states ; and they generally continue so to do, particularly during moist and warm wea- ther, and after long continued droughts following heavy rains, until they are completely brought under cultivation, and even for ages afterwards, in warm countries, near the level of the ocean, or the seashore, — circumstances which com- bine to make so many places in the West and East Indies productive of disease. Rich soils covered by large trees, and other bulky vege- table productions, are thereby protected from the action of the sun ; and the exhalations which are given off from them, during warm and moist states of the air, are confined by these produc- tions to the situations which produce them. Dr. Rush states, that the endemic disorders of Penn- sylvania were converted, by clearing the soil, from intermittents and mild remittents, to bilious and malignant remittents, and destructive epi- demics; and that it was not until t!ie soil had been subjected to cultivation for a number of years, that a tolerable degree of healthiness was procured. The district of Bresse, in the Lyon- nais, when well wooded, was comparatively healthy ; but now, deprived of its woods, the low and wet soils being exposed more to the action of the sun, the exhalations from these, and from its numerous marshes and stagnant pools, are no longer confined by surrounding forest trees ; and, consequently, endemic diseases of a severe cha- racter are very prevalent. Similar instances are to be found in the works of Deveze, Montfalcon, and lUiLLY. 8. There are various circumstances connected with the production and diffusion of exhalations given out from the soil, that require attention from tiie medical practitioner. Some of them are noticed at another place (see Disease, § 55, 56.) ; but it seems fully established, that dead animal matter and exuvia; in situations producing these exhalations, contribute most remarkably to their noxious effects. In warm countries, or in liot seasons in temperate climates, the places which are most productive of malaria, generally, also, abound the most in animal substances undergoing decomposition. The circumstances whicii render vegetation quick and luxuriant, generate immense swarms of insects and reptiles, the exuviaa and dead bodies of which mingle with vegetable mat- ter in a state of decay, and give rise to miasms, particularly during moist states of the air, much more noxious than those resulting from vegetable matter alone. I have always considered the number of insects and reptiles, with which a place abounds, as more indicative of its insalubrity, than almost any other circumstance. Malaria may be conveyed a considerable distance from its source, and be condensed in the exhaled vapour, when attracted by hills or acclivities in the vici- nity, and when there are no high trees or woods to confine it, or to intercept it in its passage. Owing to this circumstance, high grounds, near exposed marshes, are often more unhealthy than the places immediately adjoining, that are on a level with them. 9. There are no circumstances that tend more to increase the sources of endemic influence, than high ranges of temperature, and calm states of the air. The effects of these vary remarkably with the quantity of humidity exhaled, and with the conditions of the air, in respect of horizontal and vertical currents, and of electricity. However productive the sources of malaria may be, and however rapid the evaporation from them, the effects will be comparatively slight, if there be a quick renewal of the atmosphere passing over tlieir surfaces, preventing the stagnation and concentration of the effluvia emitted by them. A high temperature, particularly with exposure of the soil to the sun's rays, penetrates to the lower alluvial strata; and, if it be attended by protracted dryness, occasions wide fissures in the upper strata, through which the moisture of the lower passes in the form of vapour, which is often more noxious than the emanations fi'om a wet or marshy situation, especially when the soil is argillaceous or absorbent. It is also indirectly owing to temperature, and the greater capacity it gives the air for moisture, that the marshes of warm, or even of temperate, climates are infinitely more unhealthy than tlie bogs and peat mosses of northern countries. High temperature and hu- midity, together with richness of soil, generate succulent plants which contain saccharine and oleaginous principles, and carbonaceous and hy- drogenous elements, with a portion of azote ; and which rapidly pass, either altogether or partially, throujih the alternate processes of growth and decay. The vegetable productions, also, of hot countries, especially those which are most abun- dant, possess much less of the antiseptic princi- ples, with which those of cold climates abound, particularly tannin, creosote, the terebinthinates and their associated resins, the gallates, &c., which are found largely in the plants contributing to the bogs and peat mosses of the latter. i?esides, the marshy places, and the surfaces of alluvial soils, in warm countries, contain more animal matters undergoing decomposition, than in cold and tem- perate regions ; and are subject, in alternate suc- cession, to periodical rains and long droughts — are alternately inundated, and exposed to the direct action of the sun. Stillness of the atmo- sphere, by favouring the accumulation of malaria ENDEMIC INFLUENCES AND DISEASES. 759 in the lower strata, and in circumscribed limits, increases the injurious influence of tliis agent upon tlie human economy. Hence the danger of ex- posure to its sources during still and humid states of the air, at the close of the day, when it is con- densed in the descending moisture ; or at night, or approaching dawn, when it is un rarefied by the solar heat, and not yet carried to the higher regions by the ascending or vertical currents of the atmosphere, and when the system is most exposed to its impression. During moist states of a warm atmosphere, also, the equilibrium of its electrical conditions is disturbed ; the relative electrical states of this fluid, and of the body, is also considerably modified ; and the changes pro- duced upon the blood in the lungs, by respiration, are somewhat retarded. These effects are mate- rially influenced by the situations and circum- stances now adduced, and the respiratory func- rions remarkably impeded by them. 10. The good effects of a quick renewal of the air, in unhealthy places — of high winds, hurri- canes, and thunderstorms — in dispersing and al- together sweeping off the exhalations from the soil, and from decayed animal and vegetable matters, must be apparent. The more violent commotions of the air are the means employed by Providence to dilute, or entirely dissipate, those noxious agents, and to prevent their pesti- lential accumulation in the situations which have been described. It has been observed, especially in warm climates, and in hot seasons in temper- ate countries, that, when the air has been long undisturbed by high winds or thunderstorms, and at the same time hot and moist, endemic diseases have assumed a very severe, and even epidemic, character. Numerous facts illustrative of this have been adduced by Rusii, Webster, Chis- HOLM, Clark, Deveze, Bakcroft, and others. It is generally in hot miasmatous countries, and after prolonged seasons of drought and still states of the air, that tornadoes occur in hot climates, and thunderstorms in temperate countries, purifying and refreshing all the objects exposed to them, and preventing the occurrence of these severer forms of disease which would otherwise supervene. 11. Although the localities and related condi- tions described above are sources of diseases, chiefly in warm climates, and in temperate regions d rring hot seasons, they are not entirely destitute ot influence in cold countries ; their ill effects Ijeing generally in proportion to the height and duration of the summer temperature, and to co- incident circumstances. In northern temperate latitudes, and inland situations, the dryness of tiie air, especially during low ranges of the ther- mometer, and when the surface of the earth is sealed by an icy congelation, not only does the human frame enjoy a perfect immunity from ter- restrial emanations, but it experiences an accu- mulation of positive electricity, and increased activity of all the functions. The changes pro- duced by respiration are most complete ; the nervous and circulating systems evince increased tone ; animal heat is rapidly generated to replace, that carried oft' by the surfaces, the body acquires the phlogistic diathesis, and diseases present the sthenic forms. 12. ii. Effects of Endemic Influence. — A. The exhalations from the situations now described, at the commencement, during, and after heavy rains and moist states of the air, generally occasioa agues, dysentery, scurvy, scorbutic dysentery, enlargements of the liver and spleen, cretinism, scrofula, rickets, &c.; and if the temperature be high, the various forms of remittent and conti- nued fevers, in addition to these. The same lo- calities during warm and dry seasons, and after protracted drought, produce bilious and malig- nant fevers, of a remittent and continued type, cholera, diseases of the liver, and inflammations of the alimentary canal ; the intermittent and remittent fevers prevalent during the colder sea- sons, passing into a more continued type, and bili- ous or malignant form, after great or continued heat. This change in the character of the en- demic with the temperature and seasons, was well illustrated by the history furnished by M. KiRciioFF (^Journ. Complement, des Scien. Med. Jan. 1827.), of the diseases following the partial inundations by the sea of some parts of Holland, in the winters of 1825 and 1826. He states that the waters used for domestic purposes were brackish ; and the ponds and ditches, which were usually limpid during the spring, became greenish on the surface, and offensive. At this time, agues pre- vailed amongst workmen exposed to the exhal- ations from these sources. As the summer ad- vanced, and the waters were more completely drained off, the effluvia were more concentrated, and fevers assumed a remittent type. In the months of August and September, fever presented more of the continued character, with periodical exacerbations, particularly of the pains in the head and back, and closely resembled tiie endemic of low and moist situations within the tropics, — the circumstances occasioning it having been ia every respect similar. In the majority of cases, the liver was affected. It has been shown by writers on the fevers endemic in Hungary, that agues are most prevalent during spring ; and that remittents, continued fevers, and dysentery, be- come more common during summer and autumn. Indeed, endemic fevers are modified, from the more simple form of ague to the most malignant remittent or continued type, by the particular circumstances in which they originate, — as the miasms become more concentrated, or consist more of the eflluvia of decayed animal substances, — by the warmth of the season and climate, — by the humidity and dryness of the air, — and by the constitution and predisposition of the patient. As these vary, so does the particular character of the disease. Intermittents present every type, and various complications ; and re- mittents, numeroTis grades and forms — the bilious or gastric, the inflammatory, the bilious inflam- matory, and the asthenic or malignant. Con- tinued fevers, also, assume a mild, an inflamma- tory, a gastric, or an adynamic form. Not infre- quently, the intermittent passes into the remittent, and this latter into the continued type ; and either may be followed by dysentery. Each of these states of fever may be simple or complicated ; the principal local affection being different, as well as diversified in kind, in diiferent cases, and ap- pearing sometimes so early as to seem the primary disease, frequently in the advanced progress of the fever, and occasionally not until its latter periods. Either of these forms of fever may com- mence mildly and insidiously, and yet soon pass into dangerous local derangement and disor^anis- 3 C 4 760 ENDEMIC INFLUENCES AND DISEASES. ation ; others may begin with great excitement, rapidly terminating in exhaustion and depravation of the circulating and secreted fluids; some pre- sent great depression from tlie beginning, the powers of life never rallying throughout, or very imperfectly, with an unnatural state of all the secretions and soft solids, and a tendency to dis- solution of their cohesion, which rapidly advances, especially in warm countries, as soon as respir- ation ceases. In certain circumstances, particu- larly when great vicissitudes of temperature and weather cooperate with the strictly endemic causes, or with improper living, impure water, &c., dy- sentery becomes as prevalent as fever, or entirely usurps its place ; or the fever assumes a dysen- teric character, or passes completely into dysen- tery ; this latter malady producing even a greater rate of mortality than fever itself. (See art. Dys- entery.) 13. B. Whilst rich soils, and warm, low, moist, and marshy situations, are productive of disefise affecting chiefly the circulating and secreted fluids, and the abdominal viscera, by lowering vital power, especially as manifested in the nervous systems ; elevated, cool, or temperate and dry dis- tricts favour the developement of vital energy, especially as expressed in the nervous, muscular, and circulating systems, and in the thoracic vis- cera ; and produce diseases of a phlogistic cha- racter, as sthenic inflammations of the lungs and circulating organs, of the membranes of the brain, and of the other serous and fibrous structures, hsemorrhages, rheumatism, and fevers of an in- flammatory type. — These diseases, however, al- though the most prevalent, can scarcely be said to be endemic in these latter localities, they being much less frequent than the maladies of the former situations. It should, however, be recollected that the respective endemic influences of districts are not so deleteriously exerted on the native in- habitants, as upon those who have lately removed to them ; and that, though they may affect the constitutions of the former class, and give rise to certain diseases in preference to others, yet those diseases are not so acute or violent in them, as in the latter. This circumstance is well illustrated by what is constantly observed in warm countries productive of terrestrial emanations. There, the native inhabitants are either scarcely affected by them, or are liable only to agues, bowel com- plaints, enlargements of the spleen, or slight ail- ments referrible to the large secreting organs, excepting on occasions of tliese exhalations be- coming more concentrated or energetic than usual. But persons who have removed thitlier from healthy localities, in cold or temperate climates, sooner or later are seized by fever, generally of a remittent, or continued type, often assuming an inflamma- tory or malignant form, and frequently associated with violent local determinations ; and it is not until after the frame has been assimilated to the climate by such attacks — usually called the sea- soning fever — that agues, dysentery, and the milder forms of disease, appear in such persons. On the other hand, the inhabitants of low or miiis- matous situations, who have removed to elevated and mountainous districts, arc much more liable to diseases of the lungs, to rheumatism, and to inflammations of a sub-acute or chronic form, than the natives of these latter places ; and if the change at the same time involves a ciiangc from a high to a low temperature, the liability to pec- toral maladies is still further increased. 14. C, When persons have migrated to a country abounding with the sources of endemic diseases, a peiiod of longer or shorter duration, according to the activity and concentration of the malaria, and the predisposition of the individual, usually elapses before they are attacked by these maladies. In Rome, and other malaria districts in the south of Europe, as well as in many of those in the eastern and western hemispheres, where the ex- halations are not very active, several months, or even a year or two, pass before the unaccli- mated are seized by fever, unless the exposure and predisposition (see Disease — Predisposing Causes of) be great. Whilst in many situations, where the emanations are more concentrated, or consist of an admixture of those given off both by vegetable and by animal matters in a state of decomposition, particularly in warm climates and seasons, the first exposure to them is often pro- ductive of the most active forms of fever, and in a very short time after the exposure occurs. This is commonly observed in respect of young un- seasoned sailors and soldiers, who, coming from a pure air, in a state of high predisposition, are often subjected to these emanations in their most active states. Persons arriving in warm mias- matous districts, from temperate and healthy places, are affected with a celerity and severity generally in proportion to the fulness of their vascular systems, to the rigidity of their, fibres, and to their nearness to the epoch of early man- hood ; but various exceptions to this occur, arising out of the habits of individuals, the susceptibi- lity of their nervous systems, the extent of their exposures, and the States of their minds and moral emotions. 15. D. Although the white races of the species will live to an advanced age in warm districts productive of endemic disease, especially if they have removed thither after the constitution has been fully developed ; yet their offspring will very seldom reach maturity, or survive the epoch of childhood, if they continue to reside in such situations ; or, if they arrive at manhood, they will very rarely reach an advanced age. Dr. Jackson states, that white persons, born and residing in the more unhealthy districts of Lower Georgia, seldom live to forty ; and that, at Pe- tersburgh, in Virginia, they rarely reach twenty- five. He saw, at this latter place, a person who was only twenty-one ; and although he had never been confined by severe sickness, yet he was weak and decrepit : so injuriously does endemic influence operate upon the constitutions of the white variety, even when it fails of inducing acute disease. Buuce records similar instances among the white natives of the banks of the Nile, in Abyssinia ; and other illustrations have been ob- served by myself in some parts of Africa. Children born of European ])arents in India require to be sent to Europe to acquire due maturity and strength ; for they very seldom arrive at puberty in India, 'i'he case, however, is different when one of the parents belongs to the indigenous inhabitants; but there can be no doubt, that, were a colony of the white races conveyed to the low miasmatous localities within the tropics or in more temperate regions liable to very hot seasons, it would, in a very few gcDcrations, become extinct, if intermarriage did ENDEMIC INFLUENCES AND DISEASES, 761 not take place with the natives, or if it were not supplied from time to time from more salubrious places. Whilst a change to a more unliealtliy climate is best endured by those who have arrived at full maturity, change to an equally or a more healthy climate is especially beneficial to very young persons, unless in the case of removal of individuals belonging to the dark races to a tem- perate country, from the hot climate iu which they are indigenous. 16. E. Besides fevers, dysentery, and the slow blight of the constitutional powers, the localities above described induce, in the white races, dis- eases of the spleen, liver, and pancreas, both in unassociated forms, and as complications with fevers and dysentery. Among their less obvious effects may be enumerated scurvy, and foul ulcers of the lower extremities. The great prevalence and obstinacy of these latter in miasm atous situ- ations have not been sufficiently attended to, al- though Baglivi had noticed the circumstance in Rome, and Cleghorn in Minorca. Indeed, in all low places productive of malaria, injuries and sores of the legs heal with great difficulty, whilst those of the head recover rapidly., Hippo- crates and Cei.sus seem to have been aware of this fact. They both notice the frequent association of indolent ulcers of the legs with enlargement of the spleen, — which is remarkably common among the cultivators of rice-grounds, both in the soutli of Europe, and in otiier quarters of the globe. 17. There are some situations, which do not fall within the description given above, produc- tive of diseases almost proper to them, or which are comparatively rare elsewhere ; as cretinism, hronchocele, plica or matted hair, Guinea uorm, tarantulism, pellagra, &;c. These depend in great measure on the water, in conjunction with modes of living, and various other circumstances. — (a) Cretinism (see this article) is endemic in the deep ill-ventilated valleys of the Alps and Py- renees, in Carinthiaand the Vallais, in tlie moun- tainous parts of Tartary and Cliina, in some parts of the south of France, and in Salzbourg. It seems not to have been unknown in this country, two or three centuries ago, in the situations where hronchocele and rickets — very nearly allied diseases — have continued to be common. — [b) Hronchocele is very frequent in the situations now particularised, especially in the valleys of the Alps, where it was equally prevalent m the times of Pliny and Juvenal; in Derbyshire; in Behar, and some other mountainous districts of northern India; in similar situations in Java (S. Raffles) and Sumatra ; in Bambara, in the course of the Niger (M. Park) ; and in IMexico, and some other parts of South America (Hum- boldt). It is most prevalent in females after pu- berty ; and is, in my opinion, often connected with interrupted or irregular catamenia. — (c) Plica, or matted hair, is not noticed by the ancients, and it is doubtful when it first appeared — probably some time between the thirteenth and fifteenth centuries. It is most common in Poland and Lithuania ; but it is met with occasionally in Transylvania, Hungary, the southern parts of Russia and Tartary, and more rarely in Switzer- land, Belgium, and Prussia : but it is not so fre- quent, even in Poland, as it was a century ago. It proceeds chiefly from want of cleanliness, especi- ally in respect of the hair, and to wearing too warm coverings on the head(KERCKiioFFs, Laruy, Ali- BERT, &c.). There appears to be frequently an hereditary predisposition to it ; but the cause now assigned is evidently the most influential in pro- ducing it, assisted by tiie use of unwholesome water (Vicat). It is most common amongst the poorest classes. According to Dr. L. Kerck- HOFFs (Mc(/. Trans, of Coll. of Phys. vol. vi, p. 27.), it is not infectious (see art. Hair). — (d) Tarantulism (see Chorea, § 18.) was for- merly endemic in Apulia, but is now by no means so frequent (Laurent and Merat). This species of irregular convulsive or hysterical affection, in which the moral emotions seem more disordered than the physical powers, was imputed by Sir T. Browne, Boyle, Kircher, Baglivi, Mead, and Sauvages, entirely to the bite of the taran- tula spider, which probably is an exciting cause, in certain states of the nervous system, although neither the only nor the chief cause. Cornelio, Serao, and Cirillo, physicians in Naples, and M. Nollet, have taken juster views of its origin; and refer it rather to the state of the nervous system, in connection with the moral emotions, than to this insect. Indeed, it is extremely pro- bable that it is often feigned, or frequently occurs, without any such accident as that to which it is so commonly imputed ; for very nervous and fan- cilul females may persuade themselves that tliey are stung by this insect, in order to account for their ailments, conformably with the vulgar opi- nion, and may thereby induce that form "of irre- gular chorea or hysterical affection to which the term tarantulism or taranlismus has been applied. M. Merat (Diet, des Sciences Med. t. liv. p. 345.) infers that the inhabitants of Apulia, ovvino- to situation and climate, are liable to nervous and spasmodic affections ; and that, among others, this is apt to supervene, — from their ardent and choleric dispositions, and their love of dancing and music. In Calabria and the Apennines, where chorea and convulsive affections are common tarantulism also occurs (Ferrus). — (e) The Guinea irorm (Dracunculus^, the lono- thin worm which is sometimes found in the inhabitants of certain localities, generally under the inteo-u- ments, and so named from the circumstance of its having been first accurately observed in the natives of Guinea, is now seen in other countries. It appears from Plutarch to have been met with in the inhabitants near the Red Sea. It occurs among the negroes in most of the low marshy situations of intertropical Africa (Welch, Bruce, Park, &c.) ; in the slaves, and sometimes in the whites, in the West India islands (Ciiisholm, Thomas, &c.) ; in Bombay, and along a oreat part of that coast, as well as in some other mari- time districts of India (M'Grigor, Milne, H. Scott, Grant, &c.) ; and in the islands of the Persian Gulf (K^f.mpfer). — It is observed chiefly during the months of November, December, Jan- uary, and February, in both the East and West Indies. M. Dubois found, in parts of the Car- natic and JMadura, more than one half of the inhabitants of some villages affected by it. Dr. Ciiisholm (Edin. Med. and Surg. Jonrn. vol. xi. p. 145.), Dr. Smyttam (Ti-ans. of Med. and Phjis. Soc. of Calcutta, vol. i. p. 179.), Dr. Anderson, and several others, state that it is met with chiefly in those who use wells made in argil- laceous soils, impregnated with salt or percolated 762 ENDEMIC DISEASES — Prevention of. by sea water. M. Dubois adds, that the inha- bitants of villages who take water from one well are subject to this worm, whilst those at the dis- tance of only half a mile, who resort to a different well, are not affected by it. Other writers, in addition to those named above, agree in ascribing it to brackish waters containing the ova or embryo of this worm. The circumstance of this animal having been rarely found out of the human body has induced Dr. Milne (Edin, Med. and Surg. Journ. No. 106. p. 1 12.) to suppose that the sub- stance taken for it has been a diseased lymphatic vessel ; but the evidence of its independent exist- ence furnished by Dr. H. Scott {Med. Chir.Rev. vol. iv. p. 182.) and Dr. R. Grant {Edin. Med. and Surg. Journ. No. 106. p. 114.) has set the matter at rest. As to the manner in which this worm becomes lodged in the sub-cutaneous cel- lular tissue, much doubt exists. It must eitlier insinuate itself through the skin from without, or its ova escape the action of the alimentary juices, and pass along with the chyle into the circulation, and thence into the cellular tissue, where, having attained a certain growth, it excites the irritation preceding its expulsion. But, if it pass by this latter route, how is it that it is never found in the cellular or other parts of internal organs, where it may be expected to produce dangerous, if not fatal, effects! 18. -F. In low, moist, and cold districts, liable to frequent vicissitudes of weather and temperature, catarrhal and rheumatic affections, croup, bron- chitis, scrofula, rickets, and tubercular diseases, are more or less prevalent ; and in those similarly situated on the sea-coast, where the inhabitants live chiefly on fish — particularly on stale or dried fish, or the grey kinds — chronic eruptions on the skin are common. In large towns and cities, where a confined and impure air co-operate with the anxie- ties of business, the exhaustion of mental exer- tion or of dissipation, the luxuries of refinement, the conflict of the passions, and the excitement of the different moral emotions, disorders of the nervous system, frequently implicating the mani- festations of mind, are more common than in the country, and much more so than in imperfectly civilised states of society. — My limits will admit only of a simple reference to other endemic dis- eases — to the prevalence of trismus and tetanus in the West Indies; of elephantiasis in these islands, and in the East, as well as in Africa ; of the yaws in the negro racej of the pellagra in Lombardy and the Milanese ; of the beriberi in the East Indies; of hepatic colic (see Colic, ^ 20.) in Spain and the West Indies ; and of ophthalmia in Egypt. Some of these may be imputed to obvious physical causes ; as the ophthalmia of Egypt to the reflected heat, and the dust in the air; or pellagra, and some cutaneous diseases, to dirty habits and unwholesome food : but there are others that cannot be explained without ascribing them to the co-operation of a variety of circum- stances, as shown in the articles on these maladies. In illustration of the influence of occupations in producing a certain train of morbid actions in those similarly circumstanced, it may be staled, that amongst the children and young persons employed in cotton mills, more especially in Manchester, chorea, wliich is comparatively a rare disease, is one of the most common ; scrofula, tubercles, and debility in all its slates, being likewise very prevalent ; and that, in the some- what older work-people, chronic rheumatism, in all its forms, is remarkably frequent. The protracted periods of occupation in a very hot and moist air, and generally in a standing pos- ture ; the sudden exposure to a cold atmosphere on every occasion of leaving the factory ; and the want of due sleep, of exercise in the open air, and often of sufficient nourishment, independently of various moral causes ; sufficiently explain the endemic prevalence of these diseases in the large manufacturing town now mentioned. (See Arts AND Employments — as Causes of Disease.^ 19. iii. Of the Mode of Operation of Endemic Influence on the Economy. — The endemic causes productive of the more acute and malignant dis- eases were supposed by Cullen to be direct se- datives, not merely lowering vital power, but also inducing spasm of the extreme capillaries ; and that, if the vital energy of the system is not en- tirely overpowered by them, reaction supervenes, ia order to overcome this spasm, and thus fever be- comes developed. Other pathologists suppose that marsh effluvium acts as a stimulant or irritant ; and that the debility which it obviously occasions is either consecutive, or a state of exhaustion. Neither of these hypotheses accounts for the whole phenomena which diseases, arising from this cause, evince throughout their course, although either explains many of their symptoms. That malaria depresses vital power, contaminates the circulat- ing and the secreted fluids, and weakens the vital affinity or cohesion of the soft solids, is shown by its more immediate, as well as by its consecutive, effects upon the living body, and by the fact of dead animal matter running faster into putrefac- tion in situations where it abounds. Its septic operation on sores and wounds is often evinced during life. It has been repeatedly proved, that substances fabricated of silk, woollen, and even of cotton and flax, exposed to marsh exhalations, very rapidly undergo decay ; silk and woollen becoming putrid, and cotton and linen assuming a dingy or yellow hue, and afterwards losing their cohesion. These effects are generally rapid and complete, in proportion to the moisture and warmth of the air, and the concentration of mal- aria in it ; and so well are they known, M.Mon- FALCON states, that they are generally recognised, by the more intelligent inhabitants of Italy and the south of France, as indications of the insalu- brity of particular places and seasons. 20. iv. Of preventing the Production of Endemic Causes, and of counteracting their Effects. — A, Of preventing tlie generation of malaria. — (a) Drain- itig marsh grounds is one of the most efficient modes of pieventing the formation of malaria ; but it should be recollected that uncovered drains and ditches are fruitful sources of endemic in- fluence.— {h) Embankments thrown up against in- undations from rivers and the sea are also im- portant means of prevention ; but, if they be not quite adequate to the purpose, they may aggra- vate the evil, by preventing the water from re- tiring with sufficient rapidity. — (c) In situations admitting of neither of these means beingemployed, then advantage will often be derived from cover- ing them entirelii iviili water ; for lakes do not ex- hale miasmata until after the mud and soil of their bottoms and sides have appeared above the surface. Senac stales, that liie outskirts of a ENDEMIC DISEASES — Prevention of. 763 large town became unhealthy as soon as tlie mud at the bottom of some adjoining morasses was ex- posed to the sun and air; but that disease dis- appeared when they were completely inundated. l)r. RoLLO mentions, that mild intermittents pre- vailed in St. Lucie during the rains, when the pools and marshes were filled ; and that danger- ous fevers appeared after their slimy surfaces be- came exposed and completely dry. JMr.ANNEs- LEY records similar facts in relation to various places in the East Indies. The ditch round the ramparts of Geneva was once drained, and sick- ness prevailed in the vicinity, but disappeared when it was again filled. And the water-courses and beds of rivers that are dried up in summer, par- ticularly in warm countries, and thereby become sources of malignant fevers, are quite innocuous when filled (Ferguson, &c.). — {d) Clearing the $oil from its more bulky vegetation will be benefi- cial only when an assiduous cultivation is adopted, without the necessity of having recourse to a very abundant irrigation. In many circumstances, however, this measure will greatly aggravate the insalubrity of adistrict, as shown above, especially in respect of low swampy places within the tropics, or near the sea. Facts illustrative of this have been often observed in both the old and new worlds. — (e) Protecting the soil in w hich large cities are built, particularly when situate near the embouchures of rivers, &c., fronr the action of the sun, by a closely laid pavement; intersecting the strata of earth by large deep sewers, conveying the exuviae and other impurities beyond the reach of the inhabitants, and in such a way as to pre- vent the escape of emanations from them, in the midst of a dense population ; and removing places of sepulture beyond the outskirts of cities and towns ; are measures of the utmost importance to the health of the community. 21. It is established beyond a doubt, that the narrow winding streets of towns built in low situa- tions, or in the vicinity of marshes, are, especially when the houses are high, actually conducive to health ; inasmuch as the exhalations trans- ported from thence have a less ready access to all parts of them, the horizontal currents of air being more completely intercepted by the nearest buildings; also, when the streets are narrow, and the houses high, the sun cannot act upon the soil, which necessarily becomes saturated with animal exuviae, unless deeply intersected and purified by drains and sewers. The importance of this con- sideration was not overlooked by the ancients, as appears from the remark of Tacitus, on the re- building of Rome after its destruction by Nero. " Erant tamen, qui crederent, veterem illam for- mam salubritati magis conduvisse, quoniam an- gustiae itinerum, et altitudo tectorum non perinde solis vapore perrumperentur. At nunc patulam latitudinem, et nulla umbra defensam, graviore aestu ardescere." (Ann. 1. xv. 43.) 22. B. Whilst the above measures have refer- ence chiefly to the prevention of the formation of terrestrial exhalations, there are others that may be employed to confine them to the sources whence they issue, when the former means are ineffectual!' or cannot be put in practice. It is very proba- ble that many places, the insalubrity of which was recognised and guarded against by the an- cients, have actually become more unhealthy in modern times, owing to the accession of alluvial soil washed down from the higher grounds in the vicinity ; to the accumulation of decayed or- ganised matter and mineral detritus at the mouths of rivers, and in the bottoms of lakes, which have been thereby converted into marshes ; to the neglect of the drainage and cultivation which a former crowded population was enabled to pre- serve; and to the removal of those screens of trees which confined the exhalations to the place, that generated them. The importance of these considerations has been insisted on by Lancisi and Brocchi, in respect of Italy ; by JMonfalcon, with reference to France ; by Annesley and my- self, in regard to warm climates; and by M'Cul- LocH, as respects this country. It was remarked by Pliny, and some others among the ancients, that trees absorb the exhalations which prove in- jurious to man ; and the observation is perhaps just ; but whether trees simply obstruct the transit of malaria from its source, and confine it there, or actually absorb it along with the mois- ture in the air, and dew which rests on their leaves ; or whether they act in both ways, in ad- dition to their shading the soil from the action of the sun ; the power they possess, in low and marshy situations, of moderating the generation of mala- ria, and confining it to its source, is indisputable. It is, therefore, important to plant trees around, and more especially to leeward of, unhealthy places (§ 5.), in order to screen persons living in their immediate vicinity from their influence. Owing to the extent to which trees, high houses and walls, and intervening water, not liable to become stagnant, protect places near the sources of malaria from its effects, is to be explained the fact of the inhabitants of one side of a street, or road, often escaping ague, whilst many of those living on the other side are affected ; and of the crew of one ship being seized with fever, while those of another, somewhat further removed from the shore, escaped. 23. C. There are other means, besides those enumerated, which both destroy and counteract , or othenuise remove, the causes of endemic mutadies. — (a) In the case of impure water, filtering it, especially through charcoal ; boiling it before it is used, or passing it through lime ; preserving it in iron tanks on board ships ; and adding to it a small quantity of either of the chlorurets, when it cannot be otherwise deprived of a portion of animal matter ; are very important precautions. When sewers, drains, ditches, and other confined sources of impure air cannot be removed, or covered so as to prevent the emission of effluvia, the chloruret of lime should be thrown into them from time to time. A solution of the same sub- stance, or either of the other chlorurets, outjht also to be liberally employed in the wards of crowded hospitals, whenever the air becomes close and foul, in order to prevent the prevalence of fever, dysentery, erysipelas, and gangrene ; and should also be poured down the privies. Similar precautions ought also to be employed in crowded transports and ships of war, as well as in camps and besieged towns, more especially if dis- ease appears. But this means is only subsidiary to free ventilation, and is most to be confided in when the' latter cannot be established. By having recourse to these disinfectants, the sickness that sometimes arises from the leakage of sugar, or the decomposition of vegetable matter collected 764 in the hold or between the timbers of ships, and from the action of bilge-waler on chips or sliavings, as recorded by Sir W.Burnett and other able observers, and the ill effects contingent on the steeping of flax and hemp, may be entirely prevented. 24. (6) Whatever progress is made in civilis- ation, in the cultivation of the soil, and in the useful arts of life, tends to diminish the prevalence of endemic diseases. Improved modes of culture introduce a greater abundance of wholesome nourishment, and, together with a more extensive commerce, render subsistence much less pre- carious than in the ruder slates of society. It is chiefly pwing lo these circumstances that scurvy, dysentery, and diseases of the skin, are much less common now than formerly. These, also, aided by personal and domestic cleanliness, much better clothing, and a freer ventilation of houses, hos- pitals, prisons, &c., have tended greatly to dimin- ish the general amount of mortality. As respects prisons, the diminution of disease, chiefly result- ing from stricter attention to cleanliness, ventila- tion, and diet, shown to have taken place in those of France, by M. Villerme, is most striking. At Lyons, from 1800 to 1806, the annual mor- tality in the prisons was 1 in 19 ; from 1806 to 1812, it was 1 in 31 ; from 1812 to 1819, it was 1 in 34; and from 1820 to 1826, 1 in 43. A similar amelioration has also been remarked in the prisons of Rouen, and some otlier large towns in that kingdom. Alti:ough other diseases may appear, there can be no doubt that those that are more strictly endemic diminish before the pro- gress of civilisation, and the increase of the com- forts of life. 25, (c) The healthiness of the inhabitants de- pends much upon the choice of residences. This obtains, especially in warm climates, in respect of both casual and permanent residents. Where the winds blow from particular quarters, at certain seasons and hours of the day, buildings or en- campments should be placed so as to be, during the night especially, to windward of the principal sources of endemic disease. Ships, also, should be anchored, as much as possible, with a regard to this precaution, or at a distance from an un- healthy coast sufficiently great to admit of the dilution of the malaria, or of its absorption by the water, before the winds conveying it reach them. When a temporary residence must be to leeward of a swamp, then some advantage may accrue from lighting fires between it and tiiis source of disease, particularly during night, and from double tents, withm which gauze or fine net curtains are kept spread. Buildings either near or to leeward of any source of malaria, or standing on a deep, moist, or argillaceous soil, should be very iiigh ; the ground floor should be left unoccupied, and be open on every side to permit complete perflation ; and that side ought to be always shut on which the prevailing night or land winds blow, or towards the place from which unhealthy exhalations proceed. The in- habitants should also sleep near the tops of the houses, where, if built high, they will generally be placed above the more concentrated vapour and miasms, anrl, in great measure, beyond their influence ; for, although gentle acclivities or hills in tlie vicinity will often attract malaria, or be swept by currents of air conveying it, yet pre- ENDEMIC DISEASES — Prevention of. cipitous elevations and high houses, even near i(3 sources, will frequently escape, as, from its spe- cific gravity, it is confined chiefly near the surface of the earth. 26. (d) The diet of persons exposed to noxious exhalations should be easy of digestion, and nou- rishing, but not heating. Animal food should be taken sparingly, and spirituous liquors and strong wines laid aside. The lighter and thinner wines may be used in moderation. In hot climates or seasons, exercise in the heat of the day, or while exposed to the sun's rays, ought to be avoided ; but it should be regularly taken without causing fatigue. Such medicines as will promote the secretions and excretions, particularly those of the liver and bowels, may be resorted to when these functions recjuire aid. For this purpose, two or three grains of blue pill, with the aloesand myrrh pill, may be taken at night, and equal parts of the compound infusions of gentian and senna in the morning. When exposure to malaria, either at night or early in the morning, is to be dreaded, a moderate dose of bark or sulphate of quinine, with camphor or some warm spice, as Cayenne pepper, maybe taken previously to such exposure. A fire should be lighted in the apartment or near it ; and care be taken to exclude the raw night air, especially in the direction of the sources of miasmata. On occasions of this kind warm coffee or smoking cigars will be serviceable. The tenour of the mind should also be duly regulated. The de- pressing passions and ideas, and all undue excite- ment, as being liable to be followed by depres- sion, ought to be avoided. A calm, confident, and well-employed mind — • moderately occupied, and interested with its pursuit — unruffled by gusts of temper or passion — not weakened by inordinate indulgence of the desires — with a suf- ficient gratification of the wants and wishes to give a foretaste of more perfect enjoyment, and to leave still more to aspire after, so that the ca- pacity of gratification be not exiiansted — is that state which most successfully opposes the impres- sion of endemic influence, which, assisted by the sensual indulgences of some, the ill-regulated passions and dispositions of otiiers, and the care- lessness of many, proves so destructive to human hfe. BiBLioG. AND Refer Hippocrates. T)cAcrihas,Aquis, et Locis, vol. i. p. 327. ; ct De Sanitate tucnda, vol. i. p. G4G. edit. I'ander Linden. — Celsus, De Medicina, 1. i J. Caius (J. Kayc), Boke or Conseil against the Disease called the Sweat, or Sweating Sicknesse, 12mo. Load, 1.5.52. — Andretr Borde, A C'oinpendious Regiment or Dietary of Health made in Mount Pyllor (Montpellier), 1.562. — F. Vander Mye, De Morbis Bredanis, Tempore Obsidionis, &c. 4to. Antw. 1627. — J. Josselyn, Arcount of two Voy. to New England, 12mo. I.ond. 1G74 . —N. F. Domirigu, De Morb. End. Sarag. 168G Claro- mou/iiis, De Aere, Locis, et Aquis Terra? Anglia;, deque MorbLs Anglorum Vernaculis, 12mo. Loud. 1G72. — Prosper Alpinus, De Med. it^gypt. p. 4!). ct seq. — Stub- ner, De Nigratarum Affcctionilius. Witt. 1G!»9. — II. Totrtie, of tlie Dis. most frequent in the West Indies, &c. Hvo. Lond. 172G. — Lommius, ii\ Celsnm de Sanitate tuenda, 8vo. I>eyd. 1724. — Cheyne, On Health and I.,ong Life, 8vo. 17.S4. — J. M. Lancisi, De Noxii.s I'aludum Ef- lluviis, eorumque Remediis, &c. 4to. Roma?, 171G. r. H'/ii/rhif^/uem, Treatise of I'.ndrinie Disea.'ies,&'C. Eb. 17 IH, Works, vol.i. p. 1. — /'. Ili{tl„ui!in, De Morb. Cer- tis Heg. et I'oijtdis Propiis. Ilala', in Oper. vol. vi. p.202. — J.nlir, De C'olica Flatulenta, Incolin Gedanensibus fre- <|U(iitissiina. Erf. 172G. — Smith, Vi'. Colica apud In- eol.is Caribecnses Endem. Lugd. Bat. 1729 ■Pulilius, De Morbo Endemio ab Aqua Impura. Lips. 1749 Snlizer,l>c Morb. Helvetiis End. Arg. ]740. — Mosca, Deir Ariaedei Morbi, 4to. Nap. 174G Gdubivs, De Regimiuc Mentis, 4to. Leyd. 1747. — Sutton, On extract- ing foul Air, S:c. 8vo. Lond. 174'.'. — lluics, in I'liilos. EPHELIS —Lenticular. 765 Trans. 1755, p. 332 Huxham, De Aere, 8vo. Loml. 1752. ; et in Philos. Trans. 175S, p. .'52S — -Lind, On Pre- serving the Health of Seamen, 8vo. Lond. 1757. — Bisset, On the Med. Constitntion of Great Britain, 8vo. Lond. 17G2 J. Grainger, On the more common West India Dis. Lond. 1754. — Fcrmin, Des Mai. les ]ilus frequentes a Surinam, 8vo. Amst. 1705. — Rutty, History of the Weather for Forty Years, 8vo. 1770 Carthcuser, De Morbis Endemiis, 8vo. Fr. 1771. — JSatti, Morb. Hungaris Endtm. et Remed. iisdem Familiar. Ultraj. 1775 Hun- ter, On the Dis. of the Army in Jama'ca, 8vo. Lond. 1796. — -J. Millar, On the Prevailing Dis. of Great Britain, 8vo. Lond. 1775. — Rollo, On Preserving the Health in West Indies, 12mo. Lond. 1783. — Tournay, Variis Regionibus varii Morbi,&c. Nancei, 1783. — Don WZojz, Mem. Philos. sur I'Amerique, &c. Paris, 1787 Haygartk^ in Philos. Trans. 1778. — iJ?/x/;, Med. Inquiries and Observations, vols.i. ?i\xA\\. passim. — J. Gregory, De Cceli Mutatione, 8vo. Ed. 1776. — Kirwan, On the Temperature of diff. Latitudes, 8vo. Lond. 1787. — Finkc, Medicinisch Pra- tische Geographie, 3 b. 8vo. Leips. 1792 — 5. — Fabri- cius, De Morb. End., in Doering, t. i. p. 88. — Gnielin, Reise durch Russland, vol.iii. p. 425 — MUller, De Cans, quare ingens Europ. Multitudo Batavife pereat, et de Slali hujus Remediis. Goet. 1798. — Bunge, De Morbis Enderaiis Kioviensibus. Jenje, 1798. — Formcy, Medi- cinische Topographie von Berlin, 8vo. Ber. 1796. — C. Caldwell, On the Differences between the Endemic Dis. of the United States and those of Europe, &c. Phil. 18(12, 8vo. — Cassan, in Mem. de la Soc. Med. d'Emulation, an. 5. p. 56. — Robertson, On the Atmosphere, 2 vols. 8vo. —Garnett, On the Preservation of Health, r2mo. Lond. 1800 Guy tort Morveau, Moyens de Desinfecter I'Air, 8vo. Paris, ISOl. — Guyton et Chaptal, in Edin. Med. and Surg. Journ. vol. ii. p. 290. — Gillespie, On the Pre- servation of the Health of Seamen, 8vo. Lond. 1798 if. Willan, Reports on the Dis. of London from 1796 to 1800, 12mo. Lond. 1801. — W. Hebcrden, On the In- crease and Decrease of Diseases, 4to. Lond. 1803. (Dy- sentery had greatly decreased ; fever and rickets consider- ably; apoplexy,patsy, and consu?nption, had increased, in London.) — fVinterhottom. Med. Facts, vol. viii. p. 56. ; and Directions for Hot Climates, 12nio. 1806 Beddoes, Manual of Health, 12mo. Lond. 1806.— 717«/«ws, On the Climate of Great Britain, and its Changes, 8vo. Lond. 1807.— DomfiVr, On Malta, 8vo. Lond. 1810. _ Carter, On the Hospitals, &c. of the Continent, 8vo. Lond. 1819. — J.Johnson, On the Influence of Civic Life, Sedentary Habits, &c. 8vo. Lond. 1817. ; on the In- fluence of the Atmosphere, &c. Lond. 1818. ; on the Influence of Tropical Climates on the Constitut. &c. 4th ed. Lond. 1827. {Contains a large mass of information on cnde?nic influence and disease.) — Matthews, Diary of an Invalid. 8vo. Lond. 1820.— G. Blane, in Trans, of Med. and Chirurg. Soc. of Lond. vol. iv. p. 89. 145. ; and Select Dissertations, 2d edit, vol.i. p. 147. and 2.58. — A.Robertson, in Lond. Med. Repos. vol. i. p. 367. — T. Bateman, Re- ports on the Dis. of London, and State of the Weather, &c. from 1804 to 1816. Lond. 1819, 8vo.— J. Douglas, Me- dical Topography of Upper Canada, 8vo. Lond. 1819. — J. Copland, Medical Topography of the West Coast of Africa, in Journ. of For. Med. vol. ii. p. 1 J. Dcvii.e, Traite de la Fievre Jaune, 8vo. Paris, 1820. — G. Brocchi, Considerazioni suU' Agro Romano Antico e sul Sito di Roma Antica, 4to. Rom. 1826. ; et Del Stato Fisico de Suolo di Roma, 4to. Rom. 1820. — W. Ferguson, The Nature and History of Marsh Poison, Trans, of the Roy. Soc. of Edin. 1821.— H. Marshall, Med. Topography of Ceylon, &c. 8vo. Lond. 1822 J. B. Monfalcon, Histoire Medicaledes Marais, &c. 8vo. Paris, 1824. — Speer, On the Dis. of Lower Orders in Dublin, in Dub. Hosp. Rep. vol.iii. p. \G\. — E. M. Bailly, TruitO Anatomico-Pa- thologique des Fi&vres Intermittentes, &c. 8vo. Paris, 1825. — J. Anncsley, Researches into the Causes, Nature, and Treatment of Diseases of India and of Warm Climates, imp. 4to. vol. i. p. 47. et seq. — M. Dollcmann, DIsquisitiones Histor. de plerisque apud Belgas Septen- trionales Endemicis Morb. 4to. Amst. 1824. — J. Maccul- loch,On the Product and Propagation of Malaria, &c. 8vo. Limd. 1827. ; and On Remittent and Intermittent Dis- eases, &c. 2 vols. 8vo. Lond. 1828. — Villerme, des Pri- sons &c. 8vo. Paris, 1829 Rai/er, in Archives Gen. de Med. t. iv. p. 477., et t. v. p. 269." (Dis. of Paris.) — Fer- rus, in Diet, de Med. t. viii. p. 66. — J. Hennen, Sketches of Med. Topography of Gibraltar, Ionian Islands, Malta, &c. 8vo. Lond. 18;i0 H. Bellinaye, The Sources of Health and Disease in Communities, &c. r2mo. Lond. 1831 — Andral, in Diet, de Med. et Chir. Prat. t. vii. p. 279. ENTERITIS. See Intestines — L(/?nnima- tion of. ENURESIS. See Xinn^^ — Incontinence of. EPHELIS. Syn. — 'E<^)iiXi? (from lirl, and rixioc, the sun). Macules Fusccc, Plenck. Epi- chrosis Ephelis et Lenticula, Good. Ephelides, Alibert. Ephelide, Fr. Spotted Discolouration of the Skin. Cl.^ssif. — 10. Gen. 3. Order, 6. Class, (Good). 1. Gen. 8. Order, Maculee (Bateinaii). I. Class, V. Order, (Author). 1. Defin. — Discolourations of the skin, varying from a yellowish grey to a dark brown, and from minute points to large patches, and either scattered, confluent, or corymbose. 2. I. Forms and History. — Hippocrates applied the term ephelis to the freckles produced by the sun ; but he also extended it to the spots sometimes seen in the faces of pregnant females. This extension of the term was adopted by Ori- basius, AJETius, AcTUARius, and Gorr^t.us ; and carried even much further by Plater, Sauvages, and Alieert. Other words have been employed by modern writers as a designation either for ephelis generically, or for certain of its varieties, as will be stated hereafter ; but, as this appears to have been the original one, I shall adopt it here. The change of colour characterising it is not seated in the cuticle, but in the pigmentum whicli gives the hue to the skin. It seems, in some instances, connected with a deficient tone of the extreme vessels ; and is very variable in its progress, occasionally coining on slowly, some- times rapidly and extensively. It is often of long duration, or even permanent ; and in other cases it soon disappears, either spontaneously or after the application of some lotion. In itself, it can- not be considered to require medical interference ; but certain of its forms are important as symptoms of internal disorder. It may be divided into two species — the lenticular and diffused. i. Lenticular Ephelis. Syn. — Ephelis Len- ticularis ; Lentigo, Lenticula, Auct. Lat. ; Ephelis Lentigo, Sauvages and Todd ; Lentigo Ephelis, Frank; Pannus le)iticularis, Paget; Ephelide lentiforme, Alibert ; Freckles. 3. This species is characterised by its fawn or brown colour, the spots being generally very small, and always under the size of a lentil, dis- seminated or in clusters; and without any eleva- tion of the cuticle, or attendant irritation. Dr. Todd has very properly divided it into two varie- ties — viz. that which is congenital or dependent upon the complexion, and consequently sometimes hereditary ; and that which is caused by the sun. 4. A. Congenite Ephelis; Oa^to?, Gr. ; Taches de Rousseur, Fr. ; Ephelis Lentigo materna, Todd ; Congenite Freckles. — This variety occurs most frequently in persons of a very fair complexion, with a delicate skin, and yellowish or reddish hair; and sometimes in those with a very white skin, and dark hair and eyes. The spots are len- ticular, persistent, and not confined to tlie parts exposed to the light; but are in some cases disse- minated over the body. They frequently do not become very apparent until some time after birth, or even not until the child is five or six years old. The darkness of the discolouration varies as above (§ 1.), with the colour of the hair or eyes, and ' usually remains till old age. 5. B. Solar lenticular Ephelis ; Lenticulte So- lares ; Macuhe Solares, Plenck ; Ephelis a Sole, Sauvages; Lentigo (estiva, J. Frank; Su7nmer- Jiecken , Sonnensprossen , Ger. ; Evanescent Freckles, — This is a common lenticular discolouration, occurring in young persons, especially females. 766 EPHELIS — Diffused — Treatment. during spring and summer, and disappearing in winter; and limited to parts exposed to the sun. Those who live in cities, or keep much within doors, are very liable to it when exposed to the sun and fresh air. The deepness of the discolour- ation generally varies with the colour of the hair ; and the spots are most numerous in the face, par- ticularly of those who go bareheaded, or insuffici- ently shaded from the sun's rays. ii. Diffused Ephelis. — Ephelis diffusa, Todd. 6. This species is characterised by the irregular, diffused, and large patches, which vary more widely in colour than the foregoing species ; and are sometimes distinct, sometimes confluent. It has been made to comprise certain discolourations, arising from various causes, and presenting very different appearances. Some of these proceed from the direct action of heat and light, and others are symptomatic of an internal affection. 7. A. Idiopathic diffused Ephelis — Ephelis dif- fusa Idiopathica (T'oud) — presents two very dis- tinct forms ; that caused by the heat of fires, and that by the sun and air. — (a) The blotches pro- duced by artificial heat — Ephelis ignealis (Sau- VAGEs), Ephelis spuria (J. P. Frank), Lentigo al> IgHe{J. Thank), Tdches de BriUure, i'r. — are generally seen on the legs, arms, and thighs of persons who sit near the fire, without any cover- ing intervening between these parts and it. They are usually of a mottled character, and often as- sume a livid, or purple, or purplish red, colour, especially when the surface is exposed to cold. They are met with chiefly in females. — (b) Sun- burn, or the diffused and general discolouration — Nigredo a Sole (Sennert), Fuscedo Cutis (Plenck), Ephelis umbrosa (J . Frank) — is merely the dark colour acquired by the skin after the pro- tracted action of a high range of solar heat and at- mospheric temperature, aided by the influence of the air, more especially sea air, and salt water. 8. -B. Symptumatic diffused Ephelis, Ilepatizon, MaciiliE Hepaticte (Sennert), Vitiligo Hepatica (Sauvages), Kelis fulvescens (Swediaur), Chlo- asma (the Franks), Ephelis diffusa Symptomatica (Todd), Punnus Hepaticus (Paget), Ephelides Hepatiques (Ai.iJiTinr), Tdches Hepatiques (Fr.), Leberjtecken {Germ.). — I'his form of discolour- ation varies much in shade, and in the size of the patches. It is usually of a pale dirty yellow, or of a yellowish brown, or a light tawny shade ; or it passes from a saffron to a rhubarb hue. The patches are occasionally preceded by itching, are sometimes very slightly elevated, and then terminate in desquamation of the cuticle. They appear most fretjuently on tlie neck, over the regions of tiie liver and kidneys, on the groins, on the forehead, and sometimes about the mouth, and are generally distinct ; but they usually run into each other as they extend, and often form groups or wide blotches. When slightly elevated, and followed by desquamation of the cuticle, they nearly approach the Pityriasis versicolor of liATEMAN J and in this slate are very dry and unperspirable, while the surrounding skin is soft and moist. They are either persistent, or of short duration. The transient form of this dis- colouration is very common in delicate females, particularly those whose uterine functions are dis- ordered, and at the period of the catamcnia. 'Jliey occasionally appear suddenly, and disap- pear as speedily after a few hours ; but they often remain a very considerable time, especially when they are connected with suppression of the menses (the Chloasma Amenorrhaiim of J. Frank), or with conception (the Epl^elis Gravidarum of Plenck, and the Chloasma Gravidarum of F^rank). — This form of ephelis is also sometimes connected with chronic disorders of the liver ; but more fre- quently with those of the stomach and large, bowels, and with those of the uterine organs. It is occasionally attendant upon haemorrhoids ; and is very readily excited in those liable to it by vexation and anxiety of mind. It is also very generally connected with a state of the digestive organs, characterised by a craving appetite, and imperfect digestion and assimilation. 9. II. Treatment. — The Lenticular Ephelis is frequently a matter of serious consideration to the fair sex ; and ingenuity has been often tor- tured for means of removing it. — (a) In respect of the congenite variety (§ 4.), the remark of Celsus, as to. the folly of those who attempt to remove it, is perfectly just. — (h) That variety, which is caused by the summer heat — the solar lenticular ephelis (§ 5.) ■ — • may be prevented by the use of veils and wide-brimmed hats ; which will frequently assist its removal when already produced. The articles — nostrums, cosmetics, &c. — which have been recommended for it, are beyond the possibility of enumeration ; every perfumer, &c. being possessed of a panacea. Gently astringent and discutient lotions and poul- tices have been most commonly employed. From the time of Hippocrates to the present, lotions and liniments with bitter almonds have been re- commended. Celsus advised a liniment of resin with a little fossil salt and honey ; Actuarius, one with vinegar, honey, and bitter almonds ; and Geoffrey, ox-gall, either alone, or with liquor potassae. Dr. Thomson mentions a weak solution of bichloride of mercury, in the emulsion of bitter almonds ; and Dr. Bateman, a drachm of either sulphuric or hydrochloric acid, in half a pint of water, in the form of lotion. Dr. J. Frank prescribes the chloric acid in rose-water (ni xij. — XX. to 5 vj.) ; and Dr. Withering, an infusion of horseradish in milk. Sour butter- milk is frequently employed in country places as a cosmetic wash. Besides these, a decoction of powdered lupines or tares, or of the narcissus root, or of the seeds of the garden cucumber, also poultices prepared from these, and from a great variety of roots, have been recommended. The balsam of Mecca, with super-acetate of lead, in the form of pomatum ; washes with the juice of sorrel, or with lime-juice and cam- phor mixture ; also this last, with nitrate of potash, or with milk of sulphur, or with Vene- tian soap dissolved in lemon-juice; rubbing the parts with a slice of lemon or sour-npple ; solu- tions of zinci sulphas, in emollient vehicles ; and of the biborate of soda in rose-water or orange- flower water (F. 334.) ; have also been em- ployed, and frequently with success. JNIost of these are best applied at night, and washed off in the morning. 10. ii. The Diffused Ephelis, when preceeding directly from artificial or solar heat {§ 7.), dis- appears gradually upon tlie removal of the cause ; and requires no further consideration. The symp- tomatic stales arc important only as symptoms of internal disorder ; and, as being generally EPIDEMICS - connected with imperfect secretion, excretion, and assimilation, these functions should be assisted by mild, cooling, and alterative purgatives, light diet, and moderate exercise. Very small and frequent doses of blue pill orhydrarg. cum creta, may be given with Castile soap and taraxacum, or with the aloes and myrrh pill, if the catamenia are scanty ; or with ox-gall in addition. The internal use of the creosote may also be tried. I have prescribed it, in one case of this kind, with great benefit. Sulphurous mineral waters may also be taken ; and lotions with the sulphuret of potassium, or with nitre and camphor julap; or sulphureted fumigating baths resorted to. BiBLiOG. AND Refer. — Hippocrates, Prjenot. 1. ii. xxxi. 9. ; De Aliniento, iv. 18. ; De Morb. Mulier, 1. ii. Ixvii. 6. — Celsus, De Med. 1. vi. c. 5. — Aetius, Tetrabib. ii. ser. iv. c. 11 Oribasius, Synop. 1. viii. c. 33. ; De Loc. Affect. Cur. 1. iv. c. 52. ; et De Virtute Simp. 1. ii. c. 1. {Bitter almonds.) — Actuarius, Meth. Med. 1. iv. c. 13. — Sentierttis, De Cutis Vitiis, 1. v. pars 3 Gor- r«EMS, Defin. ad Vocem 'EfriXi'v. — Plater, De Superfic. Corp. Dolore, cap. 17. — Bender, Yie Cosmeticis. Arg. 8vo. 1764 Lorry, De Morb. Cutaneis, art. Lentigo Sauvages, Nosol. Mt'thod. Class i. Gen. 3. — Plenck, De Morb. Cut. Class i. Sp. 2. — Alibert, Plate 26. and 27. — Bateman, Synopsis of Cut. Dis. by yl. T. Thomson, p.441. —J. P. Frank, De Cur. Horn. Morbis, 1. iv. p. 82. etseq. — J. Frank, Praxeos Medicae Universae Praecepta, pars prima, vol. ii. p. 331. et 337. — Bayer, Traite Theor. et Prat, des Mai. de la Peau, t. ii. p. 206. ; et Diet, de Med. et Chir. Prat. t. vii. p. 3G9. — Cazenavc et Sc/iedel, Abrege Prat, des Mai. de la Peau, 8vo. p. 370 Todd, Cyclop, of Pract. Med. vol. ii. p. 69. — J. Paget, On the Classification of Diseases of the Skin, 8vo. p. -51. EPIDEIMICS. — Epidemic Diseases ; 'E7ri^riy,ia, 'EOTS'?/uioj,'E7nW|aoc (from Itti among, and JS^oj, people). Epidemia, Epideinius, Epidemicus, Morbi Epidemici, Morbi Pitblici, Morbi Popu- lares, Auct. Lat. Epidemie, Fr. Volkskraiik- heit, Germ. Epidemia, Ital. Epidemy, Epi- demic Influence. Epidemic Constitutions, Classif. — General Pathology. 1. EpiDEMics are such diseases as occasionalli) prevail more or less generally in a community at the same time or season, and depend upon a common cause. — They recur at uncertain periods ; and continue to prevail for a time varying from two, three, or four months, to as many years, or even longer. When their spread is most exten- sive, or throughout countries differently cir- cumstanced as to climate, &c., or when they are universal in their attack, they have often re- ceived the appellation of Pandemic (TravStijCuo; or 7ravS'»i(U.oc, from 7ra?, all, and S'>i|«.oc, people). When, together with their very genera! prevalence, they occasion a very great mortality, they have usually been denominated pestilential (see art. Pesti- lence.). They are commonly acute and febrile, and often rapidly run their course. They appear at any season of the year ; but most frequently in autumn, summer, and spring. They are dis- tinguished from endemic maladies by the circum- stance of these latter being occasioned by pecu- liarity of situation. But it should be recollected, that endemic diseases may be converted into epidemics of a very fatal kind by those injluences, either obvious or inferred, to which attention will be directed in this article ; and which, acting either separately or in combination, modify the character, whilst they cause the prevalence, of disease. 2. I. Causes, &c. — The Injluences whence epidemics proceed may be traced in many in- stances ; and in others, particularly those that are pestilential, they cannot be inferred with the same Causes, etc. 757 degree of probability. Certain epidemics have manifestly arisen out of combinations of circum- stances, the nature and operation of which admit not of dispute, whilst some have presented only certain elements of their causation, others beint^ wanting to explain fully all the phenomena ob° served. — A. Amongst the most important ele- ments of epidemic injluences, are those endemic sources which are amply described in the articles Climate (§ 3 — 32.); Disease — Causation of ; and Endemic Influence (§ 5.). These sources often perform very important parts in the causation of epidemics, upon the addition of some other cause, either manifest or concealed; endemics being sometimes the parent stock upon which epi- demics are engrafted ; the latter varying in cha- racter with the nature of the superadded cause or causes, especially those which are about to be noticed. Several of these additional causes may consist merely of certain changes, from the usual course of the seasons, which obtain in these local- ities ; as prolonged drought, or protracted rains • and, still more, the former following the latter • and particularly if conjoined with increased tem- perature. As long as the temperature continues low, very material changes in the state of the seasons may not be productive of any increase of disease in unhealthy situations, unless other causes come into operation, as infection, deficient or unwholesome food, Sec. Hufeland states that, in 1815 and 1816, in the north of Germany, the seasons were remarkably wet, and the temper- ature low, and yet the public health was very good ; that intermittents and low fevers were rare, even in marshy localities ; inflammations and rheumatism being the predominating mala- dies. In warm countries, however, protracted and heavy rains generally occasion epidemic dis- ease, especially in low and marshy places, during the subsequent hot or dry season, or when great numbers of persons are crowded in a small space ; and, moreover, impart to it an asthenic and in- fectious character. Of diseases originating in local sources, becoming infectious and epidemic, I could adduce several instances in modern times, Livv (1. XXV. 26.) states that, during the siege of Syracuse by JMarcellus, 213 years B. C, a pestilence broke out in both armies ; and that it occurred in autumn, and in a situation naturally unhealthy. " At first," he observes, " persons sickened and died, owing to the unwholesomeness of the place; afterwards the disease spread by infection, so that those who were seized were neglected, or abandoned, and died, or their atten- dants contracted the disease." lie further adds, that the dead affected the sick, and the sick those in health, with terror and pestiferous stench ; that the disease was more fatal to the Carthagi- nians than to the Romans, who, in this long siege, had become accustomed to the air and water ; and that, in the same year, an epidemic visited Rome and the adjoining country, which was remarkable rather for parsing into chronic afTec- tions, than for the mortality it occasioned. Al- though some of the sources of endemic disease may, by the aid of concurrent causes, as in the instance now quoted, give rise to epidemics, yet pestilential epidemics otherwise originating, as in infection, have sometimes spared places which have seemed to abound the most in certain causes of insalubrity J but this has occurred only when 768 EPIDEMICS those places have emitted a powerful stench and \ ammoniacal vapours, or other strong odours, which have either counteracted or neutralised the exhalations or miasms which have spread the infection. 3. B. The seasons have a very remarkable influ- ence upon certain epidemics, as those of yellow fever and plague ; and but little on others, as pesti- lential cholera, influenza, &c. As respects those epidemics which are less universal and fatal, the influence of the seasons is more or less manifest. — In spring, various forms of angina, croup, bron- chial afl'ections, inflammations of the lungs and pleura, catarrhs, rheumatism, hooping cough, ter- tian or quotidian agues, and the febrile exanthema- ta, as measles, &c., are usually most prevalent. — In sijmmer, certain of the above diseases will often remain, with continued fevers of various forms, erysipelas, smallpox, stomach and bowel com- plaints, &c. — In autumn, the diseases of summer either continue or become more prevalent, espe- cially cholera, dysentery, and colicky att"eclions ; and quartan or irregular agues, remittents, sore throat, scarlatina, inflammations, or obstructions of the abdominal viscera, &c. are also frequent. ' — In ivinter, inflammations of the thoracic and respiratory organs, rheumatism, and low or typhoid fevers are 'most common ; and, inclose or crowded places, infectious eflluvia, either from the sick or from accumulated filth, are readily generated, ■when the air in heated apartments becomes stag- nant. IIippocnATEs had remarked that, when the seasons are regular, diseases are also more regular in their course; and, unless during the prevalence of epidemics, the observation appears just. 4. C, The weather has a considerable influence on the prevalence of the more common diseases. Protracted droughts are unfavourable to pul- monary diseases, with the exception of bronchor- rhoea, and frequently excite inflammations and inflammatory fevers. During, and soon after, very wet seasons, gastric, remittent, and inter- mittent fevers, catarrhal and rheumatic affec- tions, dysentery, diarrhoea, and sore throat, are often epidemic. The frequent recurrence, or the continuance, of high and cold winds, occasion catarrhal, pectoral, inflammatory, and rheumatic diseases; and warm or hot winds induce remittent and bilious fevers, cholera, ophthalmia, &c. Calm humid states of the air promote the spread of con- tinued fevers, and all infectious and contagious ma- ladies ; and similar conditions of the atmosphere, conjoined with great heat, favour the prevalence of adynamic and malignant fevers of a continued or remittent type ; whilst very hot and dry seasons give rise to synochol and ardent fevers, to bilious remittents, cholera, and inflammations of the liver, stomach, and bowels. 5. Although the states of the atmosphere here enumerated very frequently ])roduce the eflfects ascribed to them respectively, yet other causes aid their operation. Writers, from Hippocrates down- wards, have attributed too much to irregularities and sudden vicissitudes of season in the production of epidemics, more especially of those which are very general or pestilential. I believe that this cause is instrumental chiefly in augmenting the number of cases of the diseases common to a coun- try ; and that it is very seldom the only, or even the chief, 8ou.ice of wide-spreading or pestilential niuladies, although it may aid their generation — Causes, etc. and diffusion. On this point I cannot agree with Dr. Hancock, M. Fodere, and some other mo- dern authors. That this dictum of Hippocrates was not altogether believed, even in ancient times, may be inferred from the frequent excep- tions to it adduced by historians and medical writers. Tacitus (Annalium, ]. xvi. 13.), when noticing the epidemic that raged at Rome in the year 68, states, that there was no irregularity of season or weather to account for it. Tiie plague that prevailed so long, and spread so gene- rally, between the middle and end of the sixth century, and which has been fully described by Procopii'S and Evagriiis, who were witnesses of it, was in no way dependent upon irregularity of season, but was evidently propagated by in- fection. The following remarks of Evagrius are, according to the _experience of every candid observer, perfectly cliaracteristic of an infectious pestilential epidemic : — " Some perished by once entering into, or remaining in, the infected houses ; some by touching the sick. Some contracted the disease in open market ; others, who fled from infected places, remained safe, while they com- municated the disease to others, who died. Many who remained with the sick, and freely handled the dead bodies, did not contract the disease. " (Eccles. Hist. 1. iv. cap. 29.). The pestilence called the Black Death, which visited nearly all the then known world in 1347, 1348, 1349, and 1350, was equally independent of irregularity of season or deficiency of food. Parker (^Antiq. Brit. p. 360.) states, that it first appeared in the south of England about Christmas, '1348, and amidst the greatest abundance of provisions. TnuANus and Riverius, when noticing the epi- demic that broke out in France in 1580, re- marked that the crops that year were plentiful, and the sky serene ; so that it was thought that the disease was produced rather by the influence of the stars than by the malignity of a corrupt air. Webster (On Epidemic Diseases, vol. i. p. 323.) admits that the summer in 1665, in England, when the plague commenced in Lon- don, was very temperate, the weather fine, and the fruits good. All the writers of the day agree that no cause of pestilence could be observed in the states of the seasons. The epidemics of our own days also prove that, although irregularities of seasons and weather may aid the ende- mic sources of disease, or increase the pre- valence of the common diseases, they are by no means amongst the chief causes of pestilential maladies. 6. D. In connection with, and often resulting: from, irregularity and inclemency of seasons, un- loholesnme and deficient food sometimes performs an important part in the production of epidemics, — a fact which seems to have been well known and guarded against by the inspired lawgiver, Moses. In Devteronomy (ch. xxviii.) the Israelites are warned against transgressing his laws ; and are threatened, as a consequence of disobedience, with the diseases of ]'>gypt — the botch, the scab, and the emcrods ; maladies known at present, by the names of elephantiasis, leprosy, and plague, respectively to prevail in that country ; and in A'umhers (ch. xi.), they are stated to have been seized by pestilence from eating a great quantity of the flesh of (juails, which had fallen in surprising numbers around tiieir camp, after having been EPIDEMICS — Causes, etc. 769 long destitute of animal food, — a consequence of the circumstances in which they were placed, and of the unwiiolesome nature of their food, FoDERE states, that during 1815, 1816, and 1817, in several parts of Italy and France, the inhabit- ants were obliged to have recourse to such roots and herbs as they could procure, the grain havin in those who partake of it, notwithstanding^ the eflect of cookery in counteracting its noxious tendency. 8. (c.) The agency of unripe, stale, or other- wise unwholesome fruit, and of stale and diseased fisii of any kind, in the production of certain epi- demics, is fully shownin tiie article Disk.vse (§ 40.), been remarkably scarce, and of bad quality ; and and in tiie sequel. — {d) The operation of un- that, in consequence, scurvy, diseases of the skin, and malignant and infectious fevers, became very prevalent anjong the lower classes. A similar circumstance was observed at Marseilles in 1812 and 1813 ; and in Ireland, on several occasions since the commencement of the present century ; typhoid and low fevers, and dysentery, being the wholesome water, although especially manifested in the causation of endemic distempers, is also productive of those that are epidemic, particularly on occasions of inundation of the sea; as observed on several occasions in Holland, Italy, and many places within the tropics. — (e) j\I. Fodekk states, that during a tour lately made in the Low most prevalent results. Diseased or unripe grain, ] Countries and French Flanders, he learnt that or alterations which it may have undergone in functional and organic affections of the stomach granaries, and the admixture of seeds which are i were sometimes epidemic there, from the use of injurious with it, are also very inHuential agents ; spiced spirits and cordials, and the practice of of disease. In years of scarcity, both gram and roots are often prepared for food before they have acquired due maturity ; and in that state derange not merely the alimentary canal, but also the nervous and circulating systems, at a period when want and debility have rendered them more than usually susceptible of disorder. Ma- lignant fevers, dysentery, convulsive affections, scurvy, ergotism, raphania, &c. have, in numer- ous instances, proceeded chiefly from diseased or altered grain. M. Fodehe mentions, in ad- dition to the more speciHc effects of ergoled rye (see Ergotism), its causing abortions to become epidemic. 7. (fc) Flesh of animals, and fish, when dis- eased, or tainted, are not infrequently productive of most dangerous maladies. Epidemics often commence among the lower animals ; especially horned cattle and sheep ; and the use of the dis- eased flesh may occasion malignant diseases among the human species. Whetheror not infec- tion may be conveyed from these animals whilst alive, to man, during epizootics, has not been as- certained, nor, indeed, has the question been fully adding lime and alkaline substances to the bter to prevent it from becoming acid. The well-known exclamation which SaiKSPEAUE puts in the mouth of Falstaff would lead to the inference that lime was very generally used, in the sixteenth century, to remove or prevent acidity in the white wines then drunk. This, however, is a cause rather of endemic than of epidemic diseases. The ill effects of adding deleterious narcotics to beer — even to the small-beer — in this country, although satis- factorily shown in the production of a great variety of disorders, chiefly of the digestive organs and nervous systems, seldom manifest themselves in a form so specific as to be recognised as epi- demic or even endemic. 9. E. a. Several writers on the epidemic ap- pearance of certain diseases, finding that neither of the foregoing description of causes could account for them, have had recourse to various sup- positious agents, of the nature of which they are entirely ignorant, and even the existence of which they have not been able to demonstrate. These agents have been supposed by some to be a malaria, or principle of a peculiar kind, generated entertained. That it can be thus conveyed in by the prolonged action of the sun, or by heat. respect of some maladies, has been proved in mo- dern times. FoDEiii: adduces a very convincing proof of the ill effects of diseased flesh in the pro- duction of dysentery and typhoid or adynamic fevers. At a period when the French troops, in the late war, were in want of provisions, over- driven cattle, some of them diseased chiefly from upon low absorbent soils, and exerting a very- noxious operation on the human constitution ; and by others, to be a peculiar aura, or fluid, which has escaped from more deep-seated parts of Ihe earth ; and, although altogether incognisable to the sense>, yet most destructive to human life. The former opinion is maintained by many, espe- this circumstance, were killed before time was ; cially by Jacksox, P'erguson, Deveze, O'Hal- allowed them to recover their fatigue. Their flesh ' loran, Dickson, Robertson, &c. ; the latter, was remarkably red, and passed quickly into de- { also, by a numerous body of physicians. Noah composition. Most of those who partook of it Webster endeavoured by most laborious research were seized with febi'ile and malignant dysentery, i to connect the appearance of epidemics with vol- During the French war in Prussia, Germany, ' canoes, earthquakes and comets, — supposing that and Italy, the sound meat and grain were often j they ail depend upon the same cause, or that the carried off by the victorious armies, leaving the I changes produced by the latter give rise to the unhealthy animals, &c. to the inhabitants, who . former, either directly by their action on the became, from the nature of their food, the prey , human frame, or indirectly by blighting the pro- of epidemic fever and dysentery. The blood 1 ductions of the earth, and thereby deteriorating and viscera of these animals are generally most the chief articles of food. In struggling througli noxious from being especially affected ; and it is a dry and meagre enumeration of epidemics — • fully established that these parts become princi- pally diseased in the persons who are seized by these maladies from this cause. The muscular silight as well as pestilential — furnished by this writer, the reader is often amused by the attempts to connect an influenza, or some other epidemic, in flesh of cattle attacked by anepizooty much sooner Europe, with an earthquake in America or in Asia, presents appearances of alteration afler death, than ! or with acometthat had appeared twoorthreeyears that belonging to such as are healthy. It cannot, either previously or subsequently, or with some therefore, fail of being productive of disease I such phenomenon, as the fall of meteoric stones, Vol. I. 3D 770 EPIDEMICS — Causes, etc. 10. b. Other authors have ascribed an unusual i records of history extend prevalence of disease, or the appearance of pes- tilential epidemics, chiefly to the states of elec- tricity in the air, and on the earth's surface. Tiiat certain conditions of this agent should affect the animal economy, and either predispose it to be infected by the exciting causes, or of itself be a principal cause, of disease, is probable ; but we have no direct proof of any connection between epidemics and known changes in the electrical states, either of the air, or of objects on the earth's surface ; and even granting that such connection exists, tliere is no evidence that this agent can produce the morbid effects ascribed to it. It is impossible to reconcile the modes in which epi- demics are observed to diffuse themselves, or the peculiar and novel characters they often assume, or the very opposite physical circumstances in which they occur, merely vvitii changes in the electric fluids, often of inappreciable and in- sensible kinds. Indeed, experience rather shows that the body may be made ihe medium of a very energetic, electrical, or electro-motive, action, without any injury being inflicted on it ; and it is only when a very powerful and very manifest current of either the negative or positive electrici- ties strikes, or passes through it, that life is thereby in any way affected. 11. c. Numerous instances have occurred of the lower animals participating in the fatal effects of an epidemic constitution, and they have been adduced by modern authors as proofs of the exist- ence of a noxious effluvium in the air, however it rnay have been generated. Thus it has been ob- served, that epizootics have preceded the preva- lence of fevers ; that catarrhal affections in horses have been followed by influenza ; that birds have either forsaken the vicinity of a town ravaged by a pestilence, or have fallen dead when flying over it ; and that numerous species of animals, particu- larly domestic animals, have died in houses visited by pestilential maladies. These phenomena have been adduced as proofs nf the existence of some one of the agencies placed under this head. Without disputing their actual occurrence, or attempting to reduce them to their exact dimen- sions, from which they had been exaggerated for the purposes of argument, I will receive them as they have been described by those who have adduced them in support of their views. — 1st. As respects epizootics in connection with epidemic fevers, Lancisi, Ramazzini, and still more modern writers, have furnished much information. It has very frequently been observed, when the prevailing fevers have been an exaggerated form of tlie endemic of the country, or when endemic sources have been manifestly concerned in their causation, that the lower animals, especially horned cattle and sheep, which derive their sustenance chiefly in places productive of malaria, are the first to experience its efiects, when it is more than usually active or concentrated. This is nothing more than what might be inferred a priori. We know that remittent and continued fevers, in various forms, are frequently epidemic, especially in marshy countries in the south of I'.urope; are chiefly dependent ujion local sources, aided by heat, crowding, imperfect ventilation, neglect of cleanliness, and the state of society ; and are often cither j)receded or accompanied by epi- zootics. Such occurrences are as old as the and have been ad- verted to in the Books of Moses, as well as in those of the Prophets. Homer has signalised the connection, and Eustathius and Spondanus have explained it, in their commentaries on the Iliad, as satisfactorily as any philosopher of the present day. Eustathius, the celebrated critic of the twelfth century, ascribes the disease that broke out in the Grecian camp, in the tenth year of the siege of Troy, to immoderate heat and gross exhalations: and De Sponde, or Spondanus, as he is commonly called, conceived the circum- stance of the mules and dogs having been affected before man, to have been owing to their natural quickness of smell, rendering the exhalations sooner perceivable and operative ; and to their feeding on the earth with prone heads, whereby effluvia are more readily inhaled, and before they rise so as to affect man, or become diffused in the air. 12. A connection similar to the above, and evi- dently proceeding from tlie same sources, especially in warm or dry seasons, consequent upon the inundations of low grounds or marshes, is men- ' tioned in various places by Livv. Tliat the epi- demics, which were thus consequent upon or attended by epizootics, were of the nature I have contended for, may be inferred from the following notice he has recorded of an epidemic fever which was remarkably destructive in the year of Rome, 576: — " Pestilentia, c[uae priore anno in boves ingrueiat, eo verterat in hominum morbos. Qui inciderant hand facile septimum diem superabant : qui supeiaverant longinquo, maxime quartanae implicabantur morbo. Servitia maxime morie- bantur ; eorum strages per omnes vias insepul- torum erat. Ne hberonim quidem funeribus Libilina subficiebat. Cadavera intacta a canibus ac vulturibus, tabes absumebat; satisque con- stabat nee illo, nee priore anno, in tanta strage bourn hominumque, vulturium usquam visum." (L. xli. 21.) Here the commencement of the disease amongst tlie cattle, its subsidence into the intermittent type, its greater prevalence in the lowest classes, and the absence of birds of prey from the infected atmosphere, are proofs — 1st, of its having originated in malaria, and possessed the characters distinguishing this class of fevers ; and, 2d, of the effect of the contaminated air and dis- eased bodies on animals of prey. The destructive epidemic that ravaged Rome in the year A. D. 187, and many parts of Italy, was attended, rather than preceded, by a disease in cattle. Herodian (L. i.) ascribes it to the great concourse of people, assembled from all parts of the earth, and to an unfruitful year, and consequent famine, — causes most likely to generate infection, particularly when aided by others which are seldom absent under sucii circumstances. Although this connt'ction of epizootics and epidemics may be explained as was attempted by J'justatiiius and Spondanus, yet it is not improbable, that cattle confined to- gether in a state of disease will generate an efflu- vium, remarkably injurious to man ; that the use of the flesli of diseased animals, as may be inferred to have been the case in the epidemic last noticed, will have a similar effect ; and that, when aided by other noxious agents, both these causes will occasion an infectious malady, which will spread with great rapidity and mortality under the circumstances in which EPIDEMICS tliese epidemics were observed. The facts already adduced (§, 7.), support this infer- ence ; the following further tend to confirm it: — LivY, DioNYsius of Haliearnassus, and Orosics mention a destructive pestilence which Rome and its territory experienced 464 years B. C. It seems to have occurred in autumn, and to have arisen from the crowds of countrymen and herds of cattle received within the walls of the city. " Ea coHuvio," Livv remaiks, " mixtorum omnis generis animantium, et odore iiisolito urbanos, et agrestem, confertum in arcta tecta, asstu ac vigiliis angebat, ministeriaque in vicem ac con- tagio ipsa vulgabant niorbos." (L. iii. 6.) The circumstance here so very explicitly stated, the vicinity of the Pontine marshes, and the state of the surrounding country admitting of inundations from any unusual rise of the Tyber, fully explain the occurrence of this epidemic. About ten years afterwards, another epidemic ravaged liome, and was connected with famine and disease among cattle. In the year of this city 325, or twenty- five years subsequently, a remarkable drouglit and famine visited the lloman territory, the springs of water even having been dried up. Livy states, that " multitudes of cattle thronged round the arid fountains, and perished with thirst. Diseases followed, first invading cattle, and infecting the rustics and the lower classes of people, and then extending to the city." (L. iv. 30.) Dr. Hodges states, that the plague of London in 1665 was preceded by sickness among cattle, and that bad meat was consequently sold to the poor so cheap that they fed upon it to excess, — a circumstance that could not fail of predisposing them to be affected by its principal causes. — During the epi- demic of New Orleans in 1819, cattle, sheep, and horses were affected, evidently ov.'ing to the concentrated malaria concerned in causing the disease. 13. 2d. It has been supposed that the death or absence of birds during an epidemic is evidence of the dependence of such epidemic upon terres- trial exhalations. But it should first be ascer- tained at what period this phenomenon occurs ; for if it precede the disease in the human species, then it "may be inferred that these exhalations are concerned more or less in causing that disease. But if it take place during the course of the epi- demic, then it may arise from the infection of the atmosphere by the exhalations from the sick ; the feathered creation, owing to the extent of their respiratory organs, and to their relatively large consumption of air, being very susceptible to changes in this fluid. I believe, that the pheno- menon in question has occurred only during pes- tilentUd epidemics, where the sickness and mor- tality have been very great ; and that it has pro- ceeded from tiiis latter cause. This is proved by the circumstances in which it has been observed. Thucydides states, that, during the plague of Athens, birds that prey on human flesh entirely disappeared. Analogous facts were noticed by DiEMERBROECK during the plague of Nimeguen ; by Sir J. Fellowes, during the epidemic 'of Cadiz ; and at Dantzic in 1709, according to Shout. It has likewise been remarked that do- mestic animals have died, during these epidemics, similarly aflTected to man. In these cases, the infection has manifestly extended from t'le latter — Cjwses, ETC. nt to tiie former ; the air having been contaminated by the effluvium exhaled from the sick.* 14. F. Tiie putrefaction of animal substances has been supposed by many to occasion disease in those who come within the sphere of the ex- halations thus produced, and even to generate a malady which has become infectious, and has, partly thereby, and partly from other concurring causes, prevailed to an epidemic, or even pesti- lential, extent. It is not, however, merely dead animal bodies, or considerable collections of putrid matter, but also heaps of filth exposed in the streets, or animal excretions and exuvia;, subjected to a warm and stagnant air, and neglect of do- mestic and personal cleanness, that are thus inju- rious. Tiiese latter may be less energetic agents than the foregoing ; but they more frequently exist, and are more common concurrent causes. The injurious effects, however, of putrefying ani- mal substances have been, denied by Dr. Ban- croft and others, by a species of argumentation more specious than solid — by a kind of medical special pleading, of which we have had more, since the commencement of this century, than is consistent either with facts, or with the ad- vanced state of general science. Animal sub- stances in a state of decay will produce effects, varying with the temperature and humidity of the air, with the concentration of the exhalations proceeding therefrom, and with the state of in- dividuals, or of the community, exposed to them. A candid appreciation of the facts which have occurred to most experienced observers, in con- nection with those recorded by creditable writers, will, I believe, warrant the following inferences : — 1st. That in low ranges of temperature, the emanations from putrid animal substances will seldom be productive of marked eftects, unless tiiey accumulate or become concentrated in a stagnant atmosphere — unless they be assisted by * The above occurrences were common in the pesti- lential epidemics that have visited the south of Spain since the commencement of the present century. The foUowingillustrative facts have been observed by myself: — Some years ago, malignaut puerperal fever, proceeding from a contaminated state of the air in the wards of a then crowded and ill-ventilated lying-in-hospital, had attacked nearly all the patients, 'l^he cat kept in the house died at that time, soon after having had kittens, with all the characteristic symptoms of that malady. During the prevalence of cholera in London, in 1832, a parrot, in the apartment of a person who had this dis- ease, died with all the symptoms of it. Due precautiong having been used to pr'event'its extension to the rest of the family, no one eisy Wit^.'affected by it. Some other birds, in different parts of the house, escaped. That a very sensible effluviuTi is given oif from the sick, and long adheres to the clothes of the attendants, is proved by the following occurrence: — During the summer of 1833, I was .called, by Mr. Faxon, to a patient violently attacked by pestilential cholera, at a considerable distance from my house. I took occasion, directly after one of my visits to this patient, to call upon two relatives of my own, residing about a mile and a half from the house of the patient ; and, although I walked that distHnce, they both, upon entering the room, enquired respecting the peculiarly unpleasant odour I had brought in my clothes. I I professed perfect ignorance of its existence and of any cause for it. They had no idea.nor do they even now know. I that I had been visiting a person in cholera. They were i both seized with this disease on the following day, but recovered. No one else in the house was affected by it ; and no other cases occurred in the vicinity, or within a mile of them in every direction, for long afterwards. This fact will, of itself, explain several important cir- cumstances connected with the spread of infectious epi- demics, and show the difliculty of accounting for the source or manner of infection; although infection, either direct or mediate, has, as in these cases, undoubtedly taken place. 3 D 2 772 EPIDEMICS imperfect ventilation ; — 2d. That the combin- ation of these exhalations v.ith those emitted by decayed vegetable matter, and by deep ab- sorbent soils, gives rise to eflects of greater seve- rity than those occasioned by either operating separately ; and that the intensity of these effects will depend upon the temperature, humidity, and stillness of the air, and other concurrent circum- stances ; — 3d. That emanations from dead animal matter, in the various states in which it is met with, are capable of causing, even of them- selves, serious effects, as shown in the article DvsENTERY (§ 23.) ; and that, when aided by hich ranges of temperature and humidity, they are often productive of extensive disease, which usually assumes, especially in a crowded popu- lation, and calm atmosphere, infectious proper- ties ; — 4th. That even when they have not been the chief element or cause of the epidemic con- stitution, they have been, not unfrequently, con- curring agents. 15. It is recorded in the Magdeburgh History, that, in the year 394 or 395, swarms of locusts covered Judea ; and were driven by tlie wind into the sea, and washed on the shore of Palestine ; they filled the air with foetid effluvia, which occa- sioned pestilence among men and cattle. In this case, the high temperature of the country, very probably famine — the frequent consequence of swarms of these insects — and other causes, con- curred in the production of this epidemic. It is likewise stated in the same history, that swarms of locusts covered a great part of France in 874, and were driven by the winds into the British Chan- nel ; and, having been washed on shore, caused such a stencil and sickness, aided by a famine, as to destroy about a third of the inhabitants of the French coast. I have stated that the dysenteries (see that article), which have been very gene- rally epidemic immediately after very destruc- tive pestilences, have been occasioned chiefly by the exhalations proceeding from the immense number of dead bodies, and by the presence of animal matter in the water. It is more, even, than probable, that pestilences are perpetuated in large cities from this circumstance ; and that the prolonged epidemics, of which Home, in her rise, in her acme, and in her decay, was so frequently the seat, were partly owing to this cause, wiiich neither burning nor burying the dead bodies could prevent. During the very prolonged pestilence that ravaged Home in 262 and 263. the air is described by Eusedius to have been so corrupt, as to form on the surface of objects a mould or tabid dew, such as proceeds from putrid bodies : — " Kos quidam tabidus e cadaveribus putridis;" — or, as Ceduenus ex- presses if, "Kos saniei mortuorum similis ap- parebat." 16. G. Infection and contagion are amongst the most important agents in the spread of certain epidemics ; but great misappreiiension has existed, as to the extent of their influence, tiie exact parts they perform, and their mutual connection. Many writeis have erred remarkably in viewing epi- demic diseases as being necessarily infectious, and even contagious ; and others, in considering them entirely devoid of infectious and contagious properties. The importance of determining in how far they possess either property, and are dif- Juscd in couse(]uence ; and the great interest of — Causes, etc. the subject, in medical, commercial, and political points of view ; have given occasion to much and to warm discussion — a great part of which has not been calculated to advance the cause of science, or to elevate the medical character in public estimation. The subject of contagion, in all its relations, is fully discussed in tiie article Infection. I can, therefore, only allude briefly to a few of its connections with epidemic ma- ladies. 17. 1st. A foul air maybe generated by the crowding of many into a small space, even in health, but more especially in a state of disease, as in hospitals, &c. ; or by the presence of only a very few in the same apartment, if their ail- ments be attended by copious discharges, as in puerperal and dysenteric cases, &c. ; and this air may infect those who breathe it in a state of pre- disposition, with fever, dysentery, &c.; persons- thus infected, communicating the disease to others similarly predisposed, and under the circumstances about to be stated (§ 18. 2d.). Thus I have seen puerperal fever generated in the wards of a lying-in-hospital, from the air having become vitiated by the discharges; and nearly all the females, who have been exposed to the action of the contaminated air soon after delivery, affected by it; the disease being, moreover, conveyed from one patient to another by means of the accoucheur. Foul and phagedenic ulceration, hospital gangrene, erysipelas, dysentery, inflam- mation of veins, &c. may also be produced, and become even epidemic to a certain extent, in this way. 18. 2d. Disease may take place sporadically, or from local causes, and, owing to various cir- cumstances, acting either in close succession or coetaneously, the circulating and secreted fluids, and even the soft solids, may be so changed dur- ing its course, as to emit an effluvium, contamin- ating the surrounding air, and thereby infectino- many of those vvlio breathe this air in a sufficiently contaminated state; and thus it will bepropagated to several, and from those to others — especially under favourable circumstances of temperature, humifiity, electrical conditions, and stillness of the air, and of predisposition on the part of those who come within the focus of infei-tion. Thus disease may become infectious and epidemic, aided by the constitution of the air and other circum- stances ; and, after a time, cease and entirely dis- appear, with the circumstances which combined to propagate it. 19. 3d. A person may be either infected in the manner now stated, or seized by a malady which always evinces infectious properties under circum- stances favourable to their developement, as typhoid or adynamic fevers ; or by one obviously contaf^ious, and propagated by a palpable virus, as small pox, &c. ; and be removed to a district where the physical conditions, aerial and terres- trial, as well as the states and manners of the in- habitants, favour its spread to others ; or the mor- bid miasm or matter may be conveyed, by means of some inanimate substance eihbucd with it, to a distant place thus circumstanced, and the dis- ease 1)0 there propagated for a time, then subside, entirely disappear, or again break out, according to the concurrence or disa])pearance of one or more of the causes aiding in its diffusion. In these cases, the disease becomes e]>idc?nic from in- EPIDEMICS — Causes fection, and generally disseminates itself gradually at first, but with rapidly increased celerity as its victims accumulate, until either it exhausts the numbers of those predisposed, or the circum- stances favouring it disappear, and others occur counteracting its diffusion. 20. 4th. The same disease may appear simul- taneously in a number of persons distant from each other, and between wiiom no communica- tion has taken place ; and affect a great part of a community — those who are secluded, as well as those who mix with the rest of their species ; and it may disappear after a time, without sufficient evidence being furnished of its possessing either infectious or contagious properties. Disorders thus appearing may be termed simply epidemic. 21. 5th. Disease may first appear as now stated (§ 20) ; but, in certain situations and circum- stances, as in low, filthy places ; in crowded and ill-ventilated streets and houses ; in stagnant, moist, impure, or other states of the air; from the confinement of a number of sick in small space ; want of cleanliness, or bad habit of body ; in states of physical and mental depression, &c. ; may assume a more malignant character, and emit an effluvium, which will become either a superadded cause concurrent with apparent or concealed antecedent causes, in diffusing the malady, or a principal agent of infection, or possibly even of contagion, to which the others are entirely subsidiary. In this case, the epi- demic is consecutively infectious ; and a person who, being infected, removes into a district which the disease has not yet reached, may, under the circumstances, and in the way stated above (§ 18, 19.), propagate it there : but if these circumstances do not exist, this occurrence will not take place ; and thus the epidemic will be limited to the place where the constitution of the air, and the conditions, physical, social, and moral, of the inhabitants, combine to favour the operation of such infectious effluvia as may be generated and accumulated around the sick. 22. 6th. Certain diseases may appear, either in a sporadic or endemic form, or in a simply epi- demic state (§ 20.) ; and, owing to the manners and circumstances of the community, be propa- gated only to members of the same family, or to tliose in very intimate communication with the affected ; for although commonly observed in the above forms, and, in ordinary circumstances, without evincing any infectious property, they have sometimes been transmitted to those who either sleep with, or inhale tlie breath of, the person affected, as in croup, and in some other diseases of the respiratory organs ; or live in the same apartment with him, as occa- sionally remarked in respect of erysipelas, dy- sentery, &c. 23. Epidemics present themselves in one or other of these modes according to the combin- ation of the elements or agents co-operating in their production ; and to the influence of these elements, either in predisposing the system to, o^ in directly exciting, certain trains of morbid ac- tion. Thus it "will be seen that epidemics are either — (a), not manifestly infectious (§20.) ; (6) or conditionally infectious, owing to the co- operation of certain circumstances (§ 18.) ; (r) or primarily infectious and contagious, — the epi- demic constitution, or state of the atmosphere, Conclusions, 773 This last &c. favouring their general diffusion class, or that primarily and generally infectious, is characterised — a. by the specific forms which the (Hseases comprised in it assume ; B. by their nearly determinate duration ; y. by their propa- gation under very different circumstances, al- though favoured by various atmospheric condi- tions; J. by their little disposition to relapse or return ; £. and by their affecting, with few excep- tions, the system only once. From the foregoing, also, the fact may be explained, that the same disease, when occuiring sporadically, often pre- sents no infectious properties ; but, when prevail- ing epidemically, generally evinces them more or less remarkably ; the slates of the air, the circum- stances of the community, physical, social, and moral, and various other agents contributing either to the development of new properties, or to the manifestation of those which would have been otiierwise latent or concealed. 24. //. The last element in the causation of epidemics, to which I shall briefly allude, is mental depression, in every form it can present itself. This, although a source of predisposition, rather than an element of the epidemic constitu- tion, is one of the most influential causes in the spread of disease, particularly those that are pes- tilential. An army, during the success of a cam- paign, seldom presents moie than sporadic cases of disease, unless they are subject to great priva- tions, and even then, little illness may occur. But, during reverses, panic, disappointment, &c., particularly if such reverses be attended by their usual concomitants — by crowding, privations of all kinds, inattention to cleanliness, exposure to night air and malaria, &c. — epidemic sickness is a common result. The fear of the disease, amount- ing often to panic, which is very generally expe- rienced upon the approach or breaking out of an epidemic, is not only one of the causes of its rapid diffusion, but also of the suddenness and fatality of the attack, usually remarked at its accession. The mental distress so generally diffused in the seats of war, is a very powerful concurrent cause of the diseases which are commonly attendant upon it ; and this, as well as other contingencies, will, at least partly, explain the prevalence of sickness after earthquakes, in places where they have been most severely felt. 25. Conclusions. — a. It may be inferred from the foregoing, that, although any individual ele- ment of epidemic causation will of itself be in- sufficient for the production of the effects observed, more especially of wide-spreading or pestilential diseases, a concurrence of several, in various grades and forms, aided by a number of incidental ciicum- stances, must, in the present state of our know- ledge, be viewed as their true sources; — that neither infection, although the most influential agent, perhaps; nor terrestrial malaria, nor mineral vapours — the favourite agent of Sydenham, and of many recent writers ; nor exhalations from dead animal matter ; nor intemperature of season or weather ; nor famine, scarcity, or unwhole- some food; nor crowding of the living — the healthy, or the sick ; nor filth ; nor stillness, hu- midity, warmth, or other conditions of the air ; nor depressing motions and passions ; nor any physical, social, or moral vicissitude ; will, singly, account for epidemics : but that the association of several, or of two or more, of these causes, in 3 D 3 774 EPIDEMICS — PnEcunsons of. various grades of predominance, is necessary to ;their occurrence, diffusion, and continuance. 26. b. That miasms generated by the sick in .one or other of the modes stated above (§ 17, 18. ■21.), and accumulated in a close air, or trans- .mitted by means of fomes, or contagion by a pal- pable virus, are either primarily or consecutively ■ (§ 19.) concerned in the production, or in the pro- pagation, of all fatal, malignant, wide-spreading, or pestilential epidemics. 27. c. That the appearance of epidemics is owing to the rare concurrence of the elementsjust enumerated, and probably of others of less im- portance, whether acting as specific, exciting, or predisposing causes ; and that infection, in any of its forms, will seldom or never give rise to the epi- demic prevalence of a malady, unless it be aided by one or more of the above elements of an epidemic constitution, more especially such as oc- casion a stagnant and impure state of air, and depress the spirits of, or otherwise predispose, the community. 28. rf. That the specific form which an epi- demic assumes, depends upon the association of -the causes in which it originates, and which favours its diffusion, but more especially upon the infec- tious miasm concerned either primarily or conse- cutively in producing it, and that its character may change, and become either move virulent upon the addition of a new cause or element, or Jess so on the abstraction of one or more. Thus, small-pox, scarlet fever, true yellow fever, pesti- lential cholera, plague, typhoid fevers, the ady- namic forms of dysentery and measles, require a concurrence of causes to their epidemic appear- ance, that will actccliiefly in predisposing the community to be impressed or affected by their respective infectious miasms ; these miasms being their specific exciting causes, without which they could not continue to present the same forms, or each one could no longer generate its like. When the predisposition to be affected by the specific miasm — whether such predisposition be inherent in the frame or intrinsic, or temporarily induced by external agents, as the state of the air or other extrinsic influences — -is limited to a very few of those coming within the sphere of its operation, then sporadic cases only of the malady will pre- sent themselves : but when, in consequence of the combined action of several causes, or of a peculiar but unknown state of air,, the predisposition is more or less general, the disease will become epidemic ; the nature, severity, and number of these causes, whether extrinsic or intrinsic — whether physical, social, or moral -^ determining the intensity of its character, as well as promoting its diffusion and ^continuance, until it exhausts itself, by affecting all those predisposed, or some change takes place which abstracts, or otherwise changes, the princi- pal concurrent and predisposing agents. The salutary results sometimes observed during epi- demics, from a violent storm, are obviously occasioneil ciiiefly l)y the dissipation of an infected atmosphere ; and those, as yellow fever, which require a higii temperature as a principal con- curient cause, subside upon the setting in of cold weather. 29. fi. The history of epi(irant, the prejudiced, and the emissaries of in- terested traders and chartered companies, have been ad- dtuHid in support of this and other parts of the doctrine, are best known to those who have devoted long and pa- tient study to the sul->ject. The third statement is, the reappearance, upon the decline of pestilence, of the prevailing diseases which preceded it, — a circumstance of only occasional or even rare occurrence : 1st, because pestilences are only occa- sionally so preceded : and 2dly, when they are so pre- ceded, these diseases do not always disappear; nor when they disappear, do they always return. I ap|ieal to facts. Let them be scrutiiii.scd ; and, when diseases, w Inch pre- vailed at the breaking out of pestdcMce, rcliirn alter it has ceased, the occurrence is to be explained eiWier as hinted at above, or by referring to the influence of exist- ing endemic irourccs, and the causes usu;illy concurring EPIDEMICS — Constitutions of Authors. 777 36. e. The appearance of swarms of insects has been likewise considered as a forerunner of epi- demics. After mild and open winters, when the cold has tiot been sufficient to destroy the eggs and larvffi of insects; and during moist and warm springs and summers, when warmth, moisture, and animal decay have contributed to tlieir ex- traordinary generation ; various species of both insects and reptiles have sometimes become so numerous, especially in low and humid districts, as to destroy the vegetable productions, to occa- with them or increasing their activity. Those " prevailing or minor epidemic diseases," which these writers (see Dr. Hancock, in Cycl. of Pract. Med. vol. ii. p. 82.) have viewed, not merely as the forerunners of pestilence, hut as convertible into it, must be either epidemic or ende- mic, otherwise they cannot be said to prevail. If the former, which the writer just referred to admits, where are the facts ? — Can they bear scrutiny ? None have been adduced that can stand the test. If the latter, the circumstance might be expected, a priori, occasionally to occur, and is no proof either of the convertibility of the , endemic into an epidemic pestilence, or of the absence of I infection. The distemper to which this statement is most applicable, and regarding which it has been especially made, is yellow fever, as it requires a certain concurrence of causes for its development, especially in temperate cli. mates, which causes are chiefly and commonly productive of endemic fevers. Those causes are also tlie principal predisposing and concurrent agents in the diffusion of the infection of yellow fever, whicli thereby attacks a large proportion of those who might otherwise have been seized by the endemic maladies — the predisposition to infection, occasioned by those causes, favouring an attack of the pestilential epidemic, which thereby takes the place of the endemic disease. Can it be a matter of surprise, or should it not rather be expected — {a) upon the breaking out of epidemic yellow fever, which requires a high range of atmospheric warmth for its existence, and which, therefore, can occur beyond the tropics only at parti- cular seasons, which are also those of remittents, that these latter or other endemic diseases sliould prevail ? — ! (b) or, after great numbers have left the place where it has appeared, and the population is thereby greatly re- i duced ; and when three fourths, or even more, of those who remained are attacked by it, as in the epidemics in the south of Spain ; that the endemic diseases that pre- vailed, and which generally do prevail, at these seasons, should then not be heard of, or entirely disappear ? — (c) or that, when the inhabitants who had departed have returned, and seeing that an attack of one disease does not necessarily preclude an attack of a different disease, remittents and other endemic disorders should reappear to a greater or less extent, according to the intensity and combination of causes producing them, after the pesti- lential epidemic has ceased ? A careful investigation shows that the phenomena connected with this and other pestilences are actually such as may be inferred a priori, conformably with the doctrine which imputes them, viz. ' plague, yellow fever, and pestilential cholera — the chief i pestilential epidemics with which we are acquainted — to infection. i Tihejourth andlast statement of the non-infectionists, i to which 1 shall here allude, is, that " no pestilential | epidemic is one form of disease" (Op. cit. p. 82.), or of I unvarying type ; and they adduce tliis as an argument of 1 such epidemic being an aggravated form of the diseases endemic to the place in which it breaks out. But what is the foundation for this statement ? Actually none : i for however much the pestilences ju':t enumerated may j vary in grade and severity, they present, individually, ] such speciality of features, wherever they are observed, as readily enables the well-educated, the careful, or the candid observer, to distinguish them from diseases which approach them the nearest in character ; and are as un- varyingas small-pox, measles, or scarlet fever — if, indeed, [ they be not much more so. We see these latter maladies j vary in severity, but they still preserve the same specific features ; so do the pestilences in question. We, more- ! over, see the infections of those familiar and domestic [ diseases very limited, or scarcely at all diffusing them- | selves, at certain times and seasons ; and, at others^ spreading rapidly, generally, and in severe forms ; — the same is also observed in respect of plague, yellow fever, and pestilential cholera. The principal difference between the epidemic manifestations of these two classes of dis- tempers is in the frequency and the seasons of their appearance ; and this is owing to the nature of the causes concurring to aid the diffusion of their respective infec- tions ; and without which aid they could not jircvail generally, or become epidemic. sion scarcity, and, by the decay of their exuviaj and dead bodies, to increase the local sources of diseases. They have thus contributed to the causation of an epidemic constitution, and, per- haps, in some instances, have directly produced disease. In such cases, they have either preceded or attended the commencement of the epidemic. The common insects of a country have been said to have disappeared during the prevalence of pestilence. If this have occurred, it may be referred to the operation of the same cause to which the disappearance of, or death of, birds was imputed ((^ 13.). But the non-infectionists, who have endeavoured to torture an argu- ment in favour of tlieir views out of the latter circumstance, have not ventured to affinn, as they did in respect of the disappearance of birds, than an unusual absence of insects or reptiles has been ever remarked as a forerunner of pestilence. 37. f. As to the influence of comets, meteors, earthquakes, the breaking out of volcanoes, &c. in causing epidemics, or even in indicating their approach, there is not the least evidence, notwith- standing Noah Webster's labours to demonstrate it. Coincidence may have been sometimes re- marked : but it would require a tolerably uniform antecedence of the former in respect of the latter, to show any relation between them, either as cause and efl'ect, or as concurrent results of one general or pervading cause. 38. III. JNOTICES OF SOME EpiDEMIC CONSTI- TUTIONS OF Authors. — In illustration of what has been already advanced, I will take a brief view of some epidemics, and the causes to which they have been chiefly imputed by those who have recorded them. Epidemics and pestilences of recent occurrence, as well as some of very early date, are referred to in other and more appropriate places. Ramazzini records, that the years from 1689 to 1694 were wet, the winters mild, and inundations frequent ; and that periodic fevers of an unfavourable kind, and diseases of the bowels, were epidemic ; which he attributes chiefly to the irregularity of the seasons, and to the failure of the crops. But these were manifestly only a part of the elements which contributed to the causation of these maladies ; the warmth of the climate, the great quantity of rain, and the fre- quent inundations, with their more direct results, being equally, if not much more, powerful agents. Baglivi describes the epidemic consti- tution of 1703 to 1705, and imputes it chiefly to the seasons, which were mild and rainy in winter and spring, and dry in summer and au- tumn. Earthquakes were frequently felt during these three years, in the States of the Church ; and caused great alarm in the minds of the inha- bitants, contributing thereby to the prevalence of disease. He states, that apoplexies and sudden deaths were very frequent ; and that they had been also prevalent during 1694 and 1695, throughout Italy. Although he attributes them chiefly to irregularity of the seasons, it is more than probable that the wars, and the attendant evils, which devastated that country during these years, were equally concerned in their produc- tion. CoTUGNo and Sarcone have described an epidemic, which was very fatal in Naples in 1764, which followed irregularity of seasons, and a scarcity of grain; and which appeared 778 EPIDEMICS — Constitutions of Authors. first among the poor, presenting the various ma- lignant forms of continued ancl remittent fever. Bleeding, emetics, purgatives, bark, opium, &c. ■were principally resorted to, but the mortality amounted to nearly one half of those affected. The intermittent, and subsequently the remittent, character which the epidemic assumed during its early progress, proved that the state of the sea- sons, and the abundant sources of malaria, which existed at the time, were concerned in its produc- tion : but the great malignity, with tendency to dissolution, in the fluids and soft solids, which characterised its advanced progress, evinced the operation of additional agents ; and these were sufficiently apparent in the wretchedness of the lower classes, the bad quality of the grain, in the want of cleanliness and the general inattention to infection, excepting in the religious houses, which escaped. 39. M. FoDERE refers to the transactions of the physicians of Berlin, Augsbourg, Breslau, Presbourg, and Laybach, to show that the sea- sons were not the chief causes of the epidemic constitutions they describe. Indeed, at numer- ous periods, as well as at these, the seasons have been remarkably irregular, without disease be- coming epidemic, unless where endemic sources have been very much increased by such irregu- larity, or where the evils of war, or scarcity, or some other element of au epidemic constitution, have been superadded. When diseases have pre- vailed, they have not always been influenced by the state of the weather and seasons alone, more especially when they have possessed infectious properties. Sydenham, although he once con- ceived that the epidemics of this climate could be accounted for by means of the sensible states of the air, subsequently confessed that they depended less upon these states than upon something in this fluid that could not be ascertained ; a more extensive observation having proved the inaccu- racy of his former opinion, and confirmed the inference at which Hippocrates had arrived. Geoffroy and others attribute the adynamic and infectious fevers, dysentery, and scurvy, which became epidemic in Paris and the surrounding districts in 1709, to the very severe winter and spring of that year. But a stricter examination has shown that much more was owing to the scarcity of provisions, to their increased price from the imposts of a disastrous war, to the op- pression and poverty of the lower classes, to the want of cleanliness, and more particularly to in- fection favoured by these circumstances, by the state of society and manners, and by inattention to ventilation, &c., than to the severity of the seasons, to which they had been imputed ; this co-oper- ation of the elements of an epidemic constitution protracting as well as extending the prevalence of these maladies, as might have been expected, a 7>rio»J, during three years, and for some time after certain of these elements had begun to disappear. In proof of the accuracy of this view of the mat- ter, I may add, that the early months of 1716 were equally severe in Paris, and yet no epidemic occurred; for the principal causes which came into operation in !7()9 did not then exist. In 1720, the winter and spring, in the same part of France, were very cold and wet, and grain some- what scarce ; but there was little increase of dis- ease, — scurvy being, as it always was daring the preceding century and the early part of the last, one of the most common maladies of that country. But in 1740, a similar severity of these seasons existed, and was aided by the evils of war, by a much greater scarcity, amounting to famine in many places, and by infection, with the rest of the causes just enumerated ; and the results were such as the well-informed pathologist might have inferred from this combination of agents, more especially when acting upon a population phy- sically and morally constituted and circumstanced as the French of that period were : these results being infectious, adynamic, and malignant fevers ; dysentery, diarrhoea, and scurvy. Cold and wet seasons, thick fogs, and winds that have passed over marshy and woody countries, are often pro- ductive of epidemic catarrh, hooping cough, sore throat, bronchitis, rheumatism, &c., especially among children, aged persons, and females ; and, as additional agents come into operation— as scarcity, emanations from animal bodies, infec- tion, or whatever depresses the powers of life — so the character of the epidemic changes, and the maladies above enumerated, or the exanthemata, supervene, and spread widely. 40. The malignant remittent fevers that raged in the summer and autumn of 1652, in Copen- hagen (Bartholin); of 1657, in London (VVil- Lis) ; of 1669, in Leyden (Sylvius de la Bok) ; of 1691, in various parts of Holland (Dekkers) ; of 1684, in Helmstadt (Sciieliiammer) ; of 1695, in Rome (Lancisi) ; and of 1737, in Breslau (Hann); and which presented somewhat modified characters, viith the variation in the circum- stances producing them, were very generally imputed to the epidemic constitution of these seasons, by the authors just named. But the evidence they have themselves furnished of the state of the antecedent seasons, and of the great heat and protracted drought following inunda- tions, and the exposing of places generally covered by water, together with various concurrent and subordiaate circumstances, satisfactorily accounts for these epidemics. These cities were, for a time, owing to these causes, similarly circum- stanced to places within the tropics surrounded by the sources of endemic diseases ; and con- sequently the prevailing maladies were, in their most prominent features, the same as those which are common to such places, or which attack un- seasoned Europeans visiting them. This was manifestly the case, on these occasions, as regards Copenhagen, Leyden, and other parts of Holland, and Rome. London, in the middle of the seven- teenth century, was still surrounded by marshes and low grounds on nearly three of its sides. These endemic sources, during very hot summers and autumns, particularly when these followed immediately upon wet seasons or inundations, al- ways occasioned periodical and continued fevers, dysentery, &;c. ; and, aided by a crowded popu- lation, want of cleanliness and ventilation, the manners of the lower classes, by moist and calm stales of the air, and possibly by certain electrical conditions, favoured not oidy the generation of the more common infectious feveis, but also the de- velopment and propagation of foreign infection, as that of plague, when introduced. 41. The fever characterised by disorganipation of the digestive mucous surface, — the Mvcous Fever, of FonERE and others; the Febrh Stoma- EPIDEMICS chaU-epedemica, of Arnold ; the Adetwmr.tiingeal Fever, of Pinel; and the Gastric, the Catarrhal, the Mesenteric, &c., of various authors, — liad been observed in an epidemic form, on various occasions, somewhat similar to that in which it occurred in Gottingen in 1760 and 1761, when it was accurately observed and described by Koe- DERER and Wagler. It then assumed a very severe form, modified into the remittent, dysen- teric, nervous, adynamic, and infectious states by the circumstances which concurred in producing it. 7 hese years, as well as those immediately preceding them, were very wet, and, moreover, the epoch of scarcity and war, during which the city was besieged. Hence it cannot be a matter of surprise that agues, remittents, dysentery, scurvy ; gastric, adynamic, and typhoid fevers, &c. ; should have successively appeared ; or that either should have successively predominated ; or that a fever of a mixed or complicated character, and very severe form, should have prevailed during the co-operation of these energetic elements or agents of an epidemic constitution. My limits will not permit me to take a further view of the epidemic constitutions of authors. Those described more recently by Huxham, Heberden, Sijis, &c. are of easy access to most physicians, and furnish merely illustrations of what has been already ad- vanced. The epidemics which have occurred during the last half century in America and the south of Spain are particularly reviewed in the article on Yellow Fever. I shall, therefore, only advert to certain topics connected with them, and state such inferences as observation and study suggest. 42. Many of the writers who have either seen or given an account of the epidemic occurrences of yellow fever, as Deveze, Jackson, Ferguson, &c. have insisted particularly upon the agency of miasms extricated, by a powerful sun, from the soil, and of the electrical states of the atmosphere, in their causation. It is very probable that such miasms emanate from rich deep soils abounding with the elements of vegetable and animal organis- ation and life, during very hot seasons, and when they are fully exposed to the sun's rays ; it is also probable that vicissitudes in the electrical conditions both of the air and of the bodies placed on the earth's surface occasionally take place ; and it is possible that both these agencies may be occasionally coincident, or co-operate in certain localities. IBut we possess no evidence, even granting their existence, that they are capa- ble of producing the effects ascribed to them. Their existence, however, is only a matter of inference from certain phenomena which cannot sometimes be otherwise satisfactorily explained, and not of demonstration ; and altliougli the proofs of the injurious operation of the former of these are more convincing than those yet fur- nished in respect of the latter, yet facts are still wanting to render the evidence in support of it complete. After a personal examination of many of the localities both within and without the tropics, to which certain pestilential epidemics have been altogether ascribed by many writers, I cannot come to the conclufion, that, under cir- cumstances of the kind just stated, these localities could ever, of themselves, produce the very general and fatal effects characterising these pes- tilences; that even the warmest sun, the stillest Constitutions of Authors. 779 atmosphere, and the longest absence of thunder- storms, which observation has ever shown to have occurred — the conditions' so strongly insisted upon by these writers, — could generate from them miasms of so noxious a nature as to occa- sion, by their unaided action, such pestilential epidemics as have occurred in various parts of America, and the south of Spain. That endemic sources of disease, especially the situations alluded to, give out miasms when long acted on by a hot sun ; that these miasms often become concentrated in a humid and calm atmosphere, or after au- tumnal showers ; and occasionally are aided in their operation upon the human frame by the electrical states of the air; may be admitted ; for an increased prevalence, and a more severe form, of fever are often observed in these situations, on such occasions. But after the most careful con- sideration long bestowed on the subject, and after a patient enquiry into the facts recorded, I cannot believe that these exhalations are the only, or al- ways the chief, cause of these epidemics. That infection is a primary agent in the propagation of the disease, and that an infectious miasm is gene- rated by the sick, cannot, I think, be denied by the candid enquirer into all the facts connected with the subject. But I believe that, without the physical changes and the consequent emanations alluded to, or some other concurrent causes, the infection would not extend through the commu- nity, as these emanations, floating in the air, dis- pose the system to be impressed by the infectious principle, or otherwise aid its operation ; or, in circumstances where the terrestrial exhalations have already produced much disease, the miasms from the sick become a superadded cause, in- creasing the severity of the epidemic as well as the rapidity and universality of its spread. That an infectious principle is concerned thus primarily or consecutively in the production and propaga- tion of pestilential epidemics, according as it may be introduced from some other quarter, or gene- rated by those first affected, appears fully estab- lished by numerous circumstances independently of various considerations derived from the nature of the particular epidemic, and of the antecedent and consecutive disorders, especially those en- demic to the place in which it breaks out. Of these considerations, the following seem not the least important. 43. a. The localities to which certain epi- demics, as yellow fever, are chiefly confined, have been, for many successive years, circumstanced, in respect of season and weather, similarly to the periods in which that disease has been most de- structive ; and yet the common endemic of the country only has been observed, in the form it usually puts on in that particular season.— b. True, or epidemic yellow fever, differs not merely in de- gree, but also most essentially and in kind, from the endemic fever of these localities ; consequently the former is not merely an aggravated state of the latter, — the one disease is as different from '■the other as small-pox is from measles. — c. On all occasions on which the non-infectious proper- ties of yellow fever have been argued for, the bilious remittent or severer forms of endemic fever of low situations in warm countries, and the ardent or seasoning fever of Europeans who have lately arrived within the tropics, have been assumed as identical with that malady. This error has arisen 780 EPIDEMICS from the occasionally yellow appearance of tiie skin in the bilious remittent, and the dark or coffee ground vomiting sometimes seen before death in it and in the ardent fever. But these changes are not the same, even in the cases where they are most prominent, as those in the true yellow fever; and, as shown in another place, are owing to very different pathological states. — d. That the very essential difference between these diseases indicates their diff"erent origins; and a speciality of form in the various quarters where the epidemic malady has been observed, equally de- notes its source in a specific cause. — e. That diseases which arise from terrestrial exhalations present numerous modifications, forms, and types ; have all a tendency to relapse, or to return in some form or other, upon exposure to the exciting- cause ; and always occasion marked derange- ment, and ultimately organic change, of the liver, spleen, or pancreas, or one, or all : whereas the true or epidemic yellow fever, independently of the most irrefragable proofs of infection, possesses all the attributes of infectious diseases ; attacks the frame only once, as shown by the most un- questionable evidence, British and foreign, derived from the epidemics of Spain and America ; and leaves no organic changes of these viscera as sequela;, even of its most malignant state. — The manner in which the very different diseases now referred to have been confounded the one with the other, by those espousing the non-infec- tious nature of yellow fever, whether from igno- rance or unfairness, has led to the most serious consequences to the community ; has misled the inexperienced, mystified the subjects in dispute, furnished grounds for a special pleading sort of argumentation, and, as will be seen in the articles Fever and Infection, endangered the safety of fleets and armies, and even of kingdoms. 44. IV. General Inferences.- — a. Civilis- ation exerts a most decided influence in diminish- ing the frequency and mortality of epidemics, especially those that are fatal or pestilential, as shown by their history at different epochs, and in different countries holding various grades in the scale of civilisation, — an amelioration evi- dently due — a. to a better cultivation of the soil ; to more extensive commerce, and, consequently, to the less frequent occurrence of great scarcity, and to the improved diet and circumstances of the lower classes in most European countries, in modern times ; — (3. to a favourable change in the manners and habits of the middle and lower classes, particularly in regard to cleanliness, social intercourse, and domestic arrangements; and to better ventilated and improved dwellings ; y. — to superior care in the separation and treat- ment of the aflTectcd ; and to stricter measures for the prevention and counteraction of infec- tion. Owing chiefly to neglect of these circum- stances, the lowest classes, and the most wretched amongst these classes, are ftiost fre- <|uently attacked — the mortality being also the greatest among them in proportion to the number affected. 45. b. Different ages are not equally affected by epidemics. 'J'he exuiithematous fevers and hooping cough are most prevalent among, and fatal to, infants and children; influen/.a, to the aged and debilitated. Continued fevers, in ady- namic and malignant forms, attack chiefly per- General Inferences. sons from fifteen to fifty ; but are less fatal to them, than to those of earlier or later ages. I'lague most frequently seizes adult persons of early or middle life, and generally males in somewhat greater numbers than females, — probably owing, in part, to more exposure, at this age, and of the male sex, to the predisposing causes and to infec- tion. Yellow fever attacks chiefly the young and middle-aged ; but spares only those who have passed through it in former epidemics. Pestilen- tial cholera, on the other hand, does not so often attack persons about puberty and the meridian of life, as those that are aged and exhausted; and it is usually more fatal in the latter than the former. When an increased activity of endemic causes produces epidemic fevers, young chil- dren often suffer very remarkably ; and the malady assumes in them, gastric, choleric, or dysenteric forms. 46. c. The mortality from diseases, when they first appear in an epidemic form, is usually very great; but diminishes with the frequency of their recurrence, especially those which have sprung up since the early history of our science, and which are of a contagious or infectious nature. This has been the case with hooping cough, measles, syphilis, small-pox, and may probably be so with pestilential cholera. It is not so manifest with regard to pestilences appearing after long intervals : but these are usually much more fatal at their commencement, or during their early course, and less so at their decline. The first introduction of small-pox, syphilis, &c. among savage tribes, has been as destructive as the pestilences that occurred in the middle ages. This can be explained only as briefly stated above (§30.). 47. d. As to the infiuence oj epidemics on popu- lation, it may be inferred, that the diminished pre- valence of certain maladies, which formerly raged epidemically, is in some respects compensated by the greater frequency of other diseases, for- merly of rarer occurrence ; or the appearance of some previously but little or not at all known. — a,. Since the introduction of vaccination, small-pox has rarely prevailed to a great or fatal extent ; but scarlatina, measles, croup, inflammations of the bronchi and lungs, and cerebral affections have evidently increased. The benefits, therefore, of vaccination may be said to be somewhat over- rated. It is remarked by M. Say (Cotn-s complet de Economie Politique, t. iv. p. 385.), " When we hear it said, that by saving a hundred thousand lives, vaccination has added a hundred thousand souls to the population, we may smile at the error, whilst we applaud the discovery." M.Vil- i.ERME has deduced from his researches, that, in populous countries, and particularly in large towns and cities, and in the lower classes, small-pox is fully replaced by an increase of other dangerous diseases ; but in districts fur- nishing sufficient subsistence and scope for in- creased population, and in the higher classes, this compensation is hardly or but slightly observed. Indeed, all preservative measures against the diseases of infancy act simi- larly, — in suppressing one cause of death we more or less increase the activity of the rest. 48. 0. In civilised countries, epidemics, nl- ihough attended by a very great mortality, only EPIDEMICS — General Inferences. 781 temporarily diminish the population ; for it is uniformly observeil, that the void is filled up, during tlie next few years, by a mucli greater annual average of marriages and birilis, and by an influx of strangers from other parts, the mor- tality leaving more abundant means of subsist- ence for tliose vvho have escaped. Destructive epidemics are most frequent in low situations and crowded cities ; and epidemics of a slighter kind and commoner form often occur in these and other districts abounding with malaria ; and, whether they be aggravated forms of the usual endemics, or infectious fevers, &c., they all in- directly tend to augment the number of marriages and births, whilst tlicy increase the deaths and diminish the mean duration of life. These re- sults are evidently owing to the more abundant means of sustenance and employment furnished by these places, than by mounlainous and barren districts ; and to the influx from moie healthy parts ; the excess of deaths over births being sup- plied from the latter source. The following statistic return, furnished by JM. Bossi, prefect ot the de- partment of the Ain, in France, and which he has divided into four zones, according to the na- ture of the locality, illustrates this statement, and shows — 1 Death 1 Marr. 1 Birth annually animallv annually to Inhab. to Inliab. to Inhab. In the hilly districts 38-3 179 34-8 Along banks of rivers, &c. 26-6 145 28.8 In cultivated grounds - 24-6 133 27-5 In marshy places, &c. - so-s 107 2fi-l (For the Prevention of Epidemics, see art. En- demic Influence (§ 20.) and Infection.) BiBLioG. AND Refer. — Hippocrates, Ui^) ^uc-io; 'Av- B^iiTdv, sect. xii. et seq., vol. i. p. 270. ; et 'Et/5,j^;wv, vol. i. p. 653. edit. Vander Linden. Luu'ri. Bat. 1G65. Oribasiiis, Synop. 1. vi. c. 24. — Joann. Cantacuzen, His. tor. 1. iv. c. 8. edit. Paris, p. 730. — Gentilis de Fiilgineo, Consilia, De Peste, consil. i. ii. pp. 76,77. Venet. U")14. Ga.'eazxo di Santo Sofia, Liber de Febribus, fol. Venet. 1514. (He first dist?ng?/is/ie(/ epidemics from endemics, pointed out the origin of the latter in local telluric changes ; and referred thefoimer, with pestilences, to an tink7iown change or corruption of the air.) — Chalin de Vinario, De Peste I.iber, i)iira Latinitate donatus, a J. Dalechampio. Lugd. 1552. (Asserts boldly and truly '•'■ that all epidemic diseases may become contagious, and all fevers epidemic") p. 149. — Guidon de C/iaul/aco, Tract, xi. c. 5. p. 113. ed. I.ugd. 1572. — Muratori, Script. Rer. Ital.vol. iii. p.556 M. A. Florio, Delia Natura de Mali Epidemici, e Mododi Curargli, 8vo. Ferrar. l.')K7 — Ferneliiis, De Abditis Re- rum Caiisis, cap. 13. — T. Farina, Ortiis et Oecasus Morb. Epidem. 12nio. Rom. 1672. — F. Gouet, Ergo in Acutis Morbis Epidemicis Constitutionis maximehabenda Ratio est, 4to. Paris. 1692 Sydenham, Opera, et I.egd. Bat. 8vo. \~'2G, passim. — De Hcredia, Comment, in Libros Hippocratis de Morb. Popul. fol. 168S.— jl/fxoo^, His. toire de France, fol. Paris, 1685. t. ii. p. 418 Barnes, History of F^dward III. C.imbr. 1688, fol. p. 4.'^2.— Man- gold, De Morbis Epid. Malignis. Bas. \'H)\.'—Ra)naz%nii, Opera omnia, 4to. p. 120. 155. 187. — Torftens, Histor. llerum Norvegicarum. Hafn. 1711, 1. ix. c. 8. p. 478. — Basnage, Histoire dcs Juifs. A la Have, 1716, 8vo. — J. Rogers, Essay on Epidemic Diseases. Diibl. 1734, 8vo. — Berger, De Aeris Potentia in Kpidem. Morb. CJenera- tione, 4to. Hala% 1727.— 7". Short, On the Air, Weather, Seasons, See. 2 vols. 8vo. Lond, 1749. — Pohlius, De Morb. Epid. ab Aere Atraosph. Lips. 1749. J. J. Hu- ber, Observat. circa Morbos Epidem. per reciprocum Aeris Humani et Atmosph.Commercium illustratos,4to. Cassel, 1755. — A. Nunn, Diss, de variis Spec. Morb. Epid. atque eorum Causa, &c. 4to. Erfur. 1758. — J. Augiideraic.>;, 8vo. 1809 Willan, Reports on the Dis. of Lond. from 1796 to 18Ui) ; and Bateman, Reports on the Dis of Lond. and the .State of the Weather, from 1804 to 1816, 8vo. Lond.lnl9. ; also art. Epidonie, in Rees's Cyclopsedia. — G. Blane, in Trans, of Med. and Chirurg. Soc. vol. iv. pp. 89. 145. — Noquart, in Diet, des Sciences Med. t. xii. p. 467 T. A. F. Ozana7n, Hist MecL des Ma- ladies Epidemiques,&c.S tcm. 8vo. Paris, 1817 Finke, in Journ. Univers. des Sciences Med. t. xiii. p. 58 De Peyrelongue, in Ibid. t. xxvii. p. 47. — Fourcault, in Ibid. t. XXV. p. 257., et t. xxvi. pp. 5. 129 — T. Hancock, Researches into the Laws of Pestilence, &c. 8vo. Lond. 1821. — Lassis, Causes des Malad. Epidemiques, Moyens d'y remeiher et de les pri'venir, &c. 8vo. Paris, 1822. — F. E. Foderi, Lemons sur les Epldeinies et I'Hygiene Publique, &c. 8vo. 4 tomes. Paris, 1822-1824. (Avery good work.) — Speer, in Dublin Hosp. Reports, vol. iii. p. 161. — Maclean, On Epidemic and Pestilential Diseases, 8vo. 1817, 2 vols. ; and Evils of (Quarantine Laws, and Non- existence of Pestilential Contagion, &c. 8vo. Lond. 1824. ( Il'or/'S on which little reliance can be placed, as respects either the statements they contain, or the medical knowledge t/iey betray.) — C. Ferrus, in Dict.de Med. t. viii. p. 185. Smith, Elements of the /Etiology and Philosophy of Epi- demics, 8vo. New York, 1824. — Dollemann, bisquisi- tiones Historica; de Plerisque apiid Belgas Septentrionales Epid. Morbis, 4to. Amst. I82i. — Andral, in Diet, de Jli'd. et Chir. Prat. t. vii. p. 382 Rayer, in Archives Gencr. de Med. t. iv. p. 477., t. v. p. 6-9. — Auctor. Va- rii, in Ibid. t. xii. pp. 026. 632., t. xiv. p. 446., t. xv. p. 276., t. xvii. pp. 76. 131. 248. 4.53., t. xviii. pp. 122. 232. 310. 455. 596. — F. G. Mansa, De Epidemiis maxima 782 EPIGASTUIUM — Examination of its States. Memorab. quae in Dauia grassats sunt, 8vo. Haunise, 1831. — i. K Gaste, Sur les Epid. cie 17e et ]S<^ Siccles, in Journ. Hebdom. de Medecine, t. iv. N. S. p. ">S5 Huan, in Trans, of Med. and Chirurg. Soc. of Edui. vol. iii. p. 459. — Fricke, in Archives Gen. de Med. t. xvii. p. 76. — Genest, in Ibid. t. xviii. p. 232.. et t. xix. pp. 63. 357 Alibert, Sur les Causes Secretes des EpidiS- mies, in Rev. Medicale, &c. t. i. et iv. 1833.— J. F. C. Hecker, The Black Death of the Fourteenth Century, by B. G. Babington, Syo. Lond. 1833.— L. R. J illerini, Des Epid<;mies dans les Rap. de 1' Hygiene Pubhque, de la Statisque Medicale, &c., in Annales d'HygiOiie Pub- liqueetde Mod. Legale. Jan. 1833. — See also the Bib- LiOGUAPHV ANu REFERENCES of the Articles Fever, &c.. Infection, Pestilence. EPIGASTRIUM. Syn. — 'ETnyacrrpiov (from Itti, upon, and ycta-rh^, the stomach). Regio Epigastrica. L'Epigasti-e, Fr. Der Ober- bauch, Ober-Schmeerbauch, Germ. Epigas- trio, Ital. Pit of the Stomach. Classif. — General Pathology, &c. Se- me'wlogy, &i;c. Special Pathology. 1. I. Examination of its States. — A care- ful investigation of this region, and accurate in- terpretation of the phenomena it may present, are of the utmost importance in practice. The symptoms of disorder referrible to this part, must not, however, be estimated by themselves, but in conjunction with others furnished by the ad- joining regions, by the general surface, by the pulse, by the stale of the tongue, by the excre- tions, &c. — Attention was directed to this part in the diagnosis and prognosis of disease, from the earliest history of medicine. Hippocrates re- marks, that it is a favourable symptom in fevers, when the epigastrium is supple, soft, equal, and free from pain. 2. i. Altered or augmented sensibilitl^ of this region, in any degree or kind, is an important indication of the seat, the nature, and the result of disease. In order to ascertain these points more accurately than can possibly be otherwise done, not only should the patient's account of his sensations be attended to, but the bared region should be carefully examined, when it can be done with propriety (§ 3, 4.). The sensibility of this region is greater than that of any other, more especially in thin delicate persons, and females — in tlie hysterical and hypochondriacal sensation is aggravated, and is attended by great anxiety and vital depression. A sense of heat or burning at this part often precedes an attack of haimatemesis ; and the same feeling, with acute, lacerating pain, anxiety, depression, remarkable tenderness, tension, and continued, or repeated vomiting., characterise acute sthenic gastritis. When a fixed, deep-seated, occasionally lanci- nating pain, is felt at the upper part of this re- gion, sometimes extending under the sternum, or between the left shoulders, or under the shoulder- blade, and is increased during or directly after eating, or is accompanied by difficult deglutition, or rumination, or by palpitations and irregular action of the heart, then organic lesions of the cardiac orifice of the stomach may be inferred. Similarly characterised pain at the lower part of this region and to the right, increased an hour or two after a meal, and sometimes attended by- sickness, indicates the commencement of chronic disease of the pylorus; but in its advanced stages, these symptoms are felt much lower down in the abdomen, or to ihe right of this part. — Pain of this region is a symptom also of acute and chronic pericarditis, particularly at the upper and left por- tion of it ; and is frequently complained of, espe- cially after a meal, by females who wear tightly laced corsets, and during the latter periods of preg- nancy. A sensation of gnawing, erosion, &c. fre- quently accompanies worms in the prima via, and in some cases, the first months of utero-gestation, 3. ii. Distension, tumefaction, or distinct tumour of the epigastrium is seen in various diseases. Unusual fulness, or elastic distension, is generally occasioned by flatulence of the stomach, or by collections of air in the colon. In these cases, external pressure, if it be not prevented by in- creased sensibility, which is usually also present, often partially expels the flatus; and a tympanitic sound is emitted on percussion. Borborygmi are also troublesome, particularly when this symptom is observed in hysterical and hypochondriacal cases, or in flatulent colic. It also attends upon accumulations of bile in the biliary ducts and gall-bladder, and upon congestion of the liver; but in such cases, the fulness is partly owing to It is increased in many acute diseases — frequent- | the disease of these parts, and partly to a contin ly in fevers, of every type and form, very re- markably in gastritis, generally in hepatitis and diaphragmitis, particularly on pressure, and in in- flammatory dyspepsia. Morbid sensibility amounts to acute pain, characterised by anxiety and a gent distension of the stomach by air. — Tumefac- tion of this region is frequently seen in hydro- thorax, and in chronic pericarditis, with effusion into the pericardium ; but most remarkably when tiie patient sits up. In the recumbent posture, it is sense of vital depression or sinking, in inflammations less evident. — Either swelling, or distinct tumour, of the stomach, of the tendinous part and peri toneal surface of the diaphragm of the upper portions of the peritoneum and omentum, and of the gall-bladder and ducts ; and in spasm of, or impaction of gall-stones in, the latter. In all these, tenderness is often extreme, and pressure is followed by sickness and desire to vomit. Pain is commonly dull, heavy, gnawing, or but little felt except on pressure, and deep-seated, in chronic inflammation of the liver, particularly of its substance ; in hepatic abscess ; in chronic dis- ease of the gall-bladder and ducts, of the pan- creas, and of the orifices of the stomach. It is burning and attended by nidorous, acrid, and acid eructations, in cardialgia, and otiier dys- peptic affections, particularly in the gouty dia.- thesis, or before a paroxysm of this complaint ; or upon its retrocession, on which occasion this is sometimes observed in enlargement of the liver, particularly of its left lobe, and in abscess of this organ. When the abscess points upon the dia- phragm and rises into the right tiiorax, swelling is occasionally not observed, but the patient ge- nerally comphiins of a duller heavy pain, or sore- ness, with tenderness on pressure, in tiiis part. In two cases of hepatic abscesses, in which I was very recently consulted by the practitioners at- tending them, there was very great, but diffused, swelling in the epigastrium, with pain and ten- derness, in one ; and no swelling, but deep-seated pain and soreness, in the other. The nature of the disease was recognised in both instances, and confirmed shoitly afterwards by the sudden and profuse expectoration of the contents of the ab- scesses, which in both cases had opened into the lungs. The patients are still under treatment ; EPIGASTRIUM — and, in one at least, there are hopes of recovery. Tumour in this region may be occasioned by great distension of the gall-bladder with bile, from obstruction of the common duct ; but, in this case, it is more circumscribed and distinct than in abscess of tlie liver, is unattended by any appearance of inflammation of the external parie- tes, is often pyriform, and situated at the lower part of the region, and to the right, tlucluates ob- scurely, and often disappears after appropriate purgatives. Swelling of this part, in lean per- sons, may also be occasioned by enlarged or scirrhous pancreas, more rarely by distension of the duodenum, and not so often as is supposed by tumours about tlie pylorus, because, when they are sufficiently large to distend this region, they generally draw this extremity of the stomach below, and to the right of it. Fulness of the epigastrium is seldom occasioned by distension of the colon with flatus, or accumulated fajces, or by enlarged spleen, or by the effusion of fluid, until after the swelling has appeared to a very consider- able extent in the adjoining regions ; and then it is greatest at the lower part. 4. lii. Pulsation in the Epigastrium arises from the following causes: — a. JVervous susceptibility and irritation; — -&. Inflammation of the aorta; ^c. Aneurism of the aorta, cceliac, or superior mesenteric artery; — d. Adhesion of the pericar- dium to the heart ; — e. Tumours at the root of the mesentery ; — f. Tumours of the stomach, and scirrhus of the pylorus ; — g. Enlargement of the pancreas ; — h. Hypertrophy of the heart, parti- cularly of its right side ; — i. Enlargement of tlie vena cava inferior; — k. Hepatisation of the lower portion of the lungs ; — /. Enlargement of, or abscess in, the liver. On the chief of these I shall oft'er a few remarks. 5. a. Nervous pulsation of the aorta and cce- liac arteries is not infrequent. It comes on sud- denly ; and often continues long, chiefly in hyste- rical females, and hypochondriacal men, whose nervous system and digestive organs have been long debilitated or otherwise disordered. It is generally stronger in the morning than in the evening. Dr. Baillie met with a case that re- mained for many years. Dr. Valentine Mott states that of a lady, in whom it occurred as a certain sign of pregnancy ; but usually left her after the third month. I have seen it so violent that the pulsation could be observed through the dress, and the patient insisted it could be heatd at some distance. (See AonjA, § 2. et seq.) 6. b. Aneurisms of the aorta and large arteries may occasion pulsation in this region ; but they frequently have proved fatal without this symp- tom being noticed; and, where it has been re- marked, the pulsation has not been strong. ]\Ir. A. Burns states, that aneurism of the coeliac ar- tery is rarely a cause of this pulsation ; and that, in about twenty cases of pulsating tumours in the region of this artery, not one of them turned out, upon dissection, to be disease of this or any other artery. (See Aorta, § 44.) 7. c. Adhesion of the pericardium to the heart,^ is sometimes a cause of pulsation ; and that it should be, is obvious. Dr. jNIott thinks it one of the most frequent causes. Dr. Hope describes the pulsation as peculiar, and distinguishes it by the epithets jogging or trembling ; it is synchronous with the sounds of the heart. (SeePERiCABDiuM.) Pulsation in the. 733 8. d, Tumotirs, from enlargement of the glands at the root, or in the duplicatures, of the mesentery, are productive of pulsation when they become considerable and press upon the aorta, or coeliac or superior mesenteric artery. A case of this description is described by Dr. Albers. In a person whom I attended some time ago, and who had become very emaciated, a distinct pulsation in the umbilical region arose from this cause. In- deed, the pulsation, when thus produced, is rarely so high up as the epigastrium, and is sometimes fell in both regions. 9. e. Tumours developed in the stomach, or at- tached to its villous coat, and scirrhus of the pylorus, have been noticed, by Baillie, Burns, INIoNRo, Francis, and V, Mott, as occasionally attended by pulsation. I cannot, however, agree with the last writer, in thinking that"" the obstruc- tion to the free passage of blood through the hardened" and enlarged parts occasions this symptom ; but believe that, when they press upon or come in contact with, the large arteries, especi- ally the aorta, the pulsation is necessarily propa- gated to the external situation in which it is felt. 10. J. Enlargement of the pancreas, or of the liver, is probably more frequently a cause of epi- gastric pulsation, than tumours connected with the stomach ; the enlarged and indurated viscus transmitting the pulsation of the aorta, as just stated. This cause has been noticed by Burns, Warren, V. Mott, Portal, and myself. Dr. Sewell considers that an enlarged pancreas is always accompanied with pulsation at the epigas- trium. I think that such is not the case ; and that, generally, the disease must be far advanced before this symptom attends it. 11. g. Of the other causes of pulsation at the epigastrium, I need only remark, that cases, in which it has been occasioned by enlargement of the vena cava, are mentioned by Senac and A. Burns. Dr. Pemberton thinks that the flutter- ing, sometimes felt at this region, is produced by congestion of the vena portarum, and the undula- tion communicated to it. Pulsation from hepa- tisation of the lower margin of the lungs, has been observed by A. Burns and others. Bertin, Bouillaud, and myself have noticed this as a symptom of inflammation of the aorta. (See art. Aorta- — Injiam. of.) Its connection with hy- pertrophy of the heart, particularly of its right side, requires no remark. 12. iv. In cramining the epigastric region, pressure should at first be very gentle, gradually increased, and be made in various directions. ^Vhen the heart is diseased, it should be directed under the anterior cartilages of the upper false ribs ; and, according to the situation of other or- gans or parts suspected of disorder, the pressure ought to be directed. When the patient almost involuntarily throws the muscles underneath into action, upon commencing the examination, acute disease of some part or other may be suspected. The state of the surface, in respect of moisture, temperature, softness, colour, &C. ; and the sensi- bility, the elasticity, the degree of depression, ful- ness, pulsation, &c. of this region ; are equally deserving of notice. In difficult or doubtful cases, percussion, particularly if aided by Pigrrv's plexi- meter, will be of service in giving information as to the presence of air, or of efl^used fluids, or of enlargement of the subjacent viscera. EPIGASTRIUM — Contusions, etc. — Symptoms— Treatment. 784 BiBLioG. AND Refer. — Portal, Cours d'Anat. Medj- cale, t. V. p. 193. et seq.- BaiUie, Trans, of Roy. coll. of Phys. Lond. vol. iv. p. 271. — A. Burns, On the Dis- eases of the Heart, &c. 8%o p. 59. — ./. Monro Morbid Anatomy, &c. 2d edit. p. ibn.-Albers, m Kdin. Med and .Surg. Journ. vol. ni— Hodgson, On Diseases of the Arteries and Veins, &c. p. 8S. _ Francis Trans, ot Lit. and Philosoph. Soe. of New York vol. i. — ' • j)^"". Trans, of tlie Physico-Medical Society ot New "iork, vol. i. ; and Lond. Med. and Physical Journ. vol. xl. p. b-H.-Rcnauldin, in Diet, des Sciences Medicale, t. xii. D 505 —J. Hone, Treat, on the Dis. of the Heart, &c. 8;o. 1832, p. nG:-BcrUneX B«„/«a«d, Traite des Ma- lad, du Cffiur et des Gios Vaisseaux, p. 6G. et 6bi. II. EPIGASTRIUM — Contusions and Con- cussions OF. , A -I X Classif. — I. Class, I. Order (yiut/ior). 13. Blows on the epigastrium, or falls, and concussions of the trunk, may give vise to the most serious consequences, and even to immediate death. The manner in which these effects are produced has not always been cor- rectly estimated, although they are amongst the most familiar phenomena which present them- selves. A blow on the epigastrium may seriously affect the frame from its effect — Isl, upon the stomach ; 2d, upon the liver, gall-bladder, or spleen, either of which it may rupture, particu- larly when congested, or in a state of disease; 3d, upon the digestive canal, some part of which may be ruptured by it ; 4th, upon the diaphragm and respiratory organs ; 5th, upon the actions of the heart; 6th, and lastly, upon the great ganglia and ganglia! nerves. In a person in previous health, I believe, from an attentive ex- amination of the phenomena consequent upon the injury, that the immediate effect is produced upon these ganglia, and is analogous to that occasioned by concussion of the brain. In some cases, the stomach or other parts enumerated, may suffer, according to the nature and the direction of the blow ; as in a case recorded by Duponcii at., in which the jejunum was ruptured ; and in one seen by myself, many years since, in which the spleen, which had been much enlarged, was rup- tured. A distended gall-bladder is, however, most obnoxious to this contingency, if it be dis- tended with bile on the receipt of the injury. 14. i. Sy.mptoms. — a. The patient generally falls to the ground, pale and motionless, with the most distressing death-like sensation. The skin is cool, damp, and pale ; the breathing is feeble, often scarcely perceptible, and slow. The eyes are fixed, the countenance collapsed, the lips pale, and the pulse at tiie wrist scarcely percepti- ble, or irregular and intermitting, or not to be felt! The surface and extremities become quickly cold ; the muscles are flaccid, the joints pliable ; and, in some instances, the sphincters are relaxed. If tiie powers of life be not rallied at this time, all these phenomena increase, until the action of the heart and respiration entirely cease. If death follow, the blood generally continues fluid, the limbs flaccid, and cadaveric changes quickly supervene. The changes, in the most severe cat-es, somewhat resemble those produced by lio-htriing. In some instances, one or more of the organs, above enumerated, arc injured, either in conjunction with these changes, or independently of them. 15. h. These are the more direct effects, which may terminate rapidly in death when the injury has been severe. I'ut when slighter, or wlien a judicious treatment has rallied vital power, a different train of .symptoms appear. The patient is enabled to speak ; he complains of pain and anxiety at the epigastrium, with remarkable ten- derness ; the pulse returns, and the surface reco- vers its temperature. At last, symptoms of intense reaction supervene; the pulse becomes full, strong, and quick ; the epigastrium and abdomen tumid or tense ; the eyes sunk and red ; the face sharpened, pale, and anxious; the tongue and mouth dry, with great thirst, but generally without either sickness or vomiting ; and pains are felt in the limbs, and different parts of the body, with restlessness. Such are the usual phenomena cha- racterising the reaction, when no particular organ is seriously injured, or inflained. The stomach, or the liver, or even the peritoneum, or one or more of them, often becomes inflamed in the course of the reaction, owing to the injury it had re- ceived. In this case, the particular signs of such lesion will be superadded ; as constant vomiting upon taking matters into the stomach, and pain in the region of this viscus, when it is inflamed ; tenderness and pain in the right hypochondrium and epigastrium, when the liver is affected ; and so on as respects the other organs. 16. ii. Treatment. — The means of cure are very different at the difterent periods distinguished above. — a. In the J7 est period, remedies should be promptly employed, but with caution. Inter- nal stimuli are dangerous, from their liability to induce fatal inflammation, particulaily of the stomach. External warmth, and hot stimulating baths, are generally beneficial, especially when aided by irritating frictions. In plethoric and robust subjects, cupping over the hypochondria, notwithstanding the depression, and abstracting a moderate quantity of blood, so as to give greater freedom of action to the heart and blood-vessels, will be of service. But experience has shown, not merely in one country, but in all, that animal warmth, derived from a recently killed animal, is the most effectual means of rallying the depressed powers of life in cases of this kind. Ambrose Pare advises the skin stripped fiom a sheep as soon as it is killed, to be wrapt round a person whose life is menaced by the first shock of a con- tusion. M. Larrev has resorted to it, in several cases, with instant benefit, one of which is de- tailed by M. DupoNcnAL. M. Larrey states, that some sailors, shipwrecked on the coast of Labrador, were found by Esquimaux Indians almost dead with cold and fatigue; and that they were recovered by these kind savages, who en- veloped their bodies in the warm hides of newly killed animals, and chafed their limbs with hot aromatic liquors, — a proof of the frequent supe- riority of even rude observation, to fine-drawn inferences from theory, the grounds of which have either been assumed without investigation, or received as the dictum of current but worth- less authoiity. The inhabitants of Upper Egypt, according to M. Pugnet, resort to similar appli- cations, to severe injuries ; and analogous means, particularly warm eviscerated animals, applied over the trunk, and the almost living flesh of pithed quadru])cds, are in common use among the vulgar in northern countries, in cases of contu- sion, &c. 17. /». In the second period, or that of reac- tion, general and local depletions, the tepid bath and fomentations, camphorated and stimulating embrocations or liniments, blisters over the epi- gastrium or abdomen, emollient and gently refri- a;erant drinks, and aperient eneniata, are the •rincipal remedies. Great caution should be ex- ercised during convalescence, as to the patient's food and drink ; the former of which ought to be chiefly farinaceous, and in small quantity at a time ; the latter bland, and between the tempera- ture of 70° and 90° of Fahrenheit's scale. If symptoms of inflammation of the stomach, or of any other part, appear during reaction, the treat- ment should be directed accordingly. BiBLioG. AND Refer Ambrose I' are, CEavres^de, fol. Paris, 1628, 1. xii. cap. 3., p. 107 Larrey, Mem. et Campagnes de Chir. Militaire, t. i Pugnet, Apercju du Sayd, p. 74. — Duponc/iel, in Rt'v. Medicale, t. v. p. 418. ; et Medico-Chirurg. Review, vol. ii. p. 662. EPILEPSY. Syn. — 'E7rl^?^|.«i, 'ETriA^^ic (from iTTiXa/xSavai, I seize, I attack). i\hn-bus Sacer, Hippocrates. Morbus Major, Celsus. Morbus Herculeus, Aristotle. Morbus Comitialis, Pliny et Seneca. Morbus Couvivalis-, Plautus. Mor- bus Lunalicus, Aretffius. Anulepsia, Riverius. , Apoplexia parva ; Caduca Pussio ; Morbus Son- ticus, Caducus, Astralis, Sideratus, Scelestns, D<£moniacus, Deijicus, Divinus, Sancli Johan- ids,f(xdus,pueriUs, insputatus ; Pediiio ; Epi- leptica Passio ; Cataptosis, var. Auct. Lat. • Epilepsie, Mal-Caduc, Mai de St. Jean, Fr. Fallsucht, Die Fallende Sucht, Germ. Mul Caduco, Ital. Falling Sickness, 6)C. Classif. — 4. Class, 3. Order (Culten). 4. Class, 4. Order (^Good). II. Class, III. Order (^Author, in Preface). See Convulsions. 1. Defin. — Sudden loss of sensation and con- sciousness, with spasmodic cojjtraction of the vohui- tari/ muscles, quicklii passing into violent convulsire distortions, attended and followed h\i sopor, recur- ring in paroxysms often more or less regular. 2. Epilepsy has been noticed by all the ancient writers; but by none so fully and accurately as by Aret.eus. The sudden and frightful seizure of which it consists, induced them to refer it to supernatural causes ; and hence originated seve- ral of the names whicii have been applied to it. I*fotwilhstanding the very numerous results of ob- servation accumulated by the ancients, and still more remarkably by the moderns, its nature and treatment are very imperfectly known. There is, perhaps, no other malady of which the treatment has been more empirical than of it ; and this opprobrium must necessarily continue until our knowledge of its pathological relations is much lurther advanced than at present. In the descrip- tion I am about to give of this disease, its more distinctly marked states will be frst considered, and afterwards the varieties into which it has been divided, according to the modifications and com- plications it usually presents in practice. It will appear in the sequel how very nearly it is related to apopleiii on the one hand, and to convulsions on the other, — in its more idiopathic staples, to the former, to mania, maniacal delirium, and idiotcy ; and in its siimptomatic states, to the latter, to hys- teria, ecstacii, and some other nervous affections. But the relations and complications of epilepsy, and the transitions of it into these maladies, as well as of those into it, will be noticed here- after ; and the disease will be treated of as it actually presents itself to the practitioner, and not as it is usually described by systematic writers, Vol. I, EPl LEPS Y — Pathology — Description. 7 85 who have viewed it (and, indeed, all other dis- eases) as a distinct species, and not as it com- monly occurs — as a concatenation or group of morbid phenomena, which varies infinitely in form, intensity, and combination, and conse- quently approximates more or less nearly to other morbid actions, particularly of the same system or organ, and which may either pass into them, or appear in their course. 3. I. Description, &c. — In order to enter- tain satisfactory ideas of the nature and morbid relations of epilepsy, it should be studied as to — 1st, the phenomena which precede its evolution; 2dly, the signs indicating the approach of the paroxysm ; 3dly, the paroxysm itself, and the phenomena immediately consequent upon it; and, 4thly, the intervals between the seizures. M. Andral has adopted a nearly similar arrange- ment, which, however, is merely a modification of that of J. Frank, the latter, upon the whole, being the preferable of the two. Having de- scribed the more regular states of the malady, I shall take a brief view of its varieties and compli- cations. 4. A. The phenomena preceding the eiolution of tlie disease. — J.Frank remarks that, of three hundred cases, the early history of which he had the opportunity of investigating, very few oc- curred in persons vvho had been perfectly healthy previously to the accession of the disease. This, however, had not escaped Hiverius and Tissot, the latter of whom has treated specifically " On the Diseases which precede Epilepsy." This malady attacks chiefly those persons who had been subject to convulsions during their first den- tition ; to tinea capitis, or other chronic eruptions in early life ; to diseases of the head, violent affections of temper, or to disorders of mind ; to an unbridled indulgence of the passions ; to diseases of the ear ; to affections of the glandular and lymphatic system ; to worms, to chorea, or to hysteria, at* any period previously to the epileptic seizure. INlany of these antecedent disorders may be viewed either as predisposing or exciting causes ; or as indications of those early disturbances of the nervous systems, and of the circulation of the cerebro-spinal centres, that lead on to further changes, when left to themselves, until the fully formed epileptic seizure is the result. Thus, it is not infrequently re- marked that epileptic patients have, long before the accession of the disease, complained of tre- mors, cramps, vertigo, partial paralysis, disorders of sensation, chorea, stammering, palpitations, epistaxis, &c.; or have received injuries on the head. The relations of these with the seizure, as well as of those noticed above, must be obvi- ous to all. There are also other disorders which precede the disease ; but which, being more intimately related to its causes, will be noticed hereafter. 5. B. Phenomena premonitory of the seizure. — As this disease rarely attacks a sound consti- tution, or person previously in good health, so each paroxysiTi frequently is preceded by some indication or other of its approach. Instances, however, are common, of persons being seized without any intimation, and even in the day- time, as suddenly as if struck by lightning. Wedel, IIenke, and J. Frank refer to several such. The last writer thinks it a rare occur- 3E 786 EPILEPSY — Description of. rence ; but I agree with EsQuiROi-.in considering it by no means uncommon, particularly in the idiopathic foTm ; the symptomatict'oTm being gene- rally preceded by some indication. In two cases at present under my care, the seizures are instan- taneous and unexpected : and I have met with se- veral such, chiefly in those idiopathically affected, or who have inherited the disease. 6. The premonitorii signs of the fit are, gene- rally, increased sensibility, or a sense of formi- cation of the surface, or of some particular part, as the arm, back, breast, &c. ; cramps; turgidity of the vessels of the head; redness of the counte- nance ; a peculiar, anxious, or fixed look ; heavi- ness or obtuse pain of the head ; vertigo, or par- ticular sensibility, or a feeling of emptiness or coldness in the head ; a great paleness of the face, and paleness or blueness of the lips and gums; a deeper sleep than usual ; sleeplessness, or sleep attended by startings or peculiar succussions of various parts of the body, or disturbed by singu- lar dreams and visions, or by the nightmare ; a sensation of sinking, or leipothymia, when falling asleep ; unusual states of temper ; irritability, or marked disposition to anger; various hallucina- ions, or spectral illusions ; great timidity, or un- usual depression or serenity of mind ; anxious de- portment ; great hilarity or mental excitation : an uncommon feeling of strength, or of robust health ; sudden loss of recollection, confusion of ideas, or forgetfulness ; unsteady gait ; a desire of mo- tion, or an irresistible impulse to run forwards ; shivering of the limbs; dimness of sight; red or black objects, or coruscations or scintillations, before the eyes ; trembling of the iris, or alternate contractions and dilatations of the pupils ; tempo- rary loss of sight, double or partial vision, or strabismus; a rush of tears ; deafness, or a sense of humming, roaring, or other noises in the ears ; a morbid perception of colours, of odours, or of flavours ; a sense of sweetness in the mouth ; a flow of saliva ; violent sneezing, hiccup, frequent yawning, attended by a feeling of anxiety at the praecordia ; pandiculation ; difficulty of articula- tion, or stammering ; distortion of the counte- nance ; spasmodic affections of the larynx ; faint- ing, or leipothymia ; palpitations ; borbor) gmi ; a sense of constriction in the fauces, throat, thorax, or abdomen; cramps in the stomach; great voracity, or unusual craving of the appe- tite ; a copious discharge of watery or offensive urine, or haematuria ; a peculiar foetor of the faeces ; more frequently eructations, nausea, and vomiting, or other dyspeptic symptoms ; and still more commonly the aura epileptica. J. Fkank saw the paroxysm preceded by an eruption, over the whole body, excepting tiie face, of the vitiligo alba. He states, that in twenty-one epileptics treated in the clinical wards of the hospital at Wilna, vomiting announced the paroxysm in seven. 7. More than two or three of the foregoing symptoms seldom exist at the same time ; but they sometimes precede one another. Thus, in a case which I lately attemled, the patient was unusually excited in tiie morning, was restless, could not sit in one place any time, and desired me not to call again, as lie never felt better in health and spirits than he did at that time. As I had Ijecn seeing liim from lime to time, on ac- count of an indifferent state of healtli, I requested his friends to watch him. In the afternoon, h^ turned pale, felt very cold, complained of pain in one eye-ball, became sick, vomited, and in- stantly was severely seized. Another patient felt an unusual craving for food, with faintness, sunk and pallid features, most distressing sense of sink- ing, followed by violent palpitations ; and directly afterwards, experienced a severe paroxysm : the pulse becoming irregular and intermitting during its continuance. The sensation of a cold or warm aura proceeding from some part, and ascending to the head, but very rarely descending from the head to another part, is one of the most common pre- cursors of the fit. In some cases, the aura has been felt to terminate at the epigastrium. The places whence it most frequently proceeds, are various parts of the upper and lower extremities, the groins, hypochondria, abdomen, loins, uterine regions or vulva, along the vertebral column, and from the vertex to the occiput. Fehne- Lius mentions its occurrence at the vertex ; and ScHELHAMMER, a case in which it com- menced at this part, and proceeded to the arm. From whatever place the aura may arise, as soon as it reaches the head, or ceases, the patient loses all consciousness, and the fit is fully de- clared, 8. C. Phenomena characterising and directly following the Jit. — It is only during the paroxysm that the characterised symptoms are observed. These may be so violent as to appear most fright- ful, or so slight or momentary as to be hardly observed, with every intermediate grade. This has led to the arbitrary distinction adopted by EsQuiROL, FoviLi.E, Calmiel, and Andral, into the Grand and Petit Mai, The former, or fully developed paroxysm, may be divided into three stages. — (a) In the Jirst, or that of tetanic rigid- ity, the patient, either without any premonition, or after having felt one or more of the precursory signs above enumerated, generally utters a scream or exclamation, of which he has no recollection afterwards, and instantly falls back- wards, if standing. Sometimes he runs some steps forward, or turns so as to describe a semi- circle or circle, and then falls to the ground. Rarely he turns rapidly around, more than once, as remarked by Kriegal, VVedel, Bang, Va- lentin, LcJBENSTEiN-LoBEL, EsQuiROL, and J, Frank; or is thrown into a sort of dancing motion, — a circumstance which led Fabricius to describe a variety of the disease by the name of Epilepsia Saltator. Directly afterwards the whole body assumes an almost tetanic stiffness ; the head is drawn backwards ; the eyes are generally open, and directed froiti the usual axis of vision; the limbs are thrown out forcibly, and become rigid ; and the muscles of the thorax and abdo- men firmly contracted. The pulse is either ir- regular, or natural, or slower than usual. The face is very pale, unless cerebral congestion pre- cede the attack ; and the respiration is impeded by the spastic contraction of the thoracic muscles, ()ccasionally, one half of the body is more affected than the other ; and erection generally occurs ia the male, with retraction of the testes. This stage is usually of very short duration, passing in some seconds, or almost instantaneously, into the next. 9. (li) In the second stage, or that of convul- sion, the ])henomena diffur in no respect from those characterising the tonic form of Convulsion EPILEPSY— Description of. 787 ( § 12.), excepting in the more profound insensi- bility attending it, which is so great tliat the patient may be subjected to the most painful applications without sensation being excited. The whole body is generally thrown into the most violent convulsions, so that, as Ahet^us has remarked, the spectators dread the iinme- diate extinction of life. The head is violently rotated, or tossed in every direction ; the vessels of the head and neclc are enormously swollen ; tiie eye-brows, forehead, and scalp are much agitated or coatracted ; tiie hair is erect ; the eyelids are either open, half-shut, or convulsed ; the eyes fixed, prominent, vacant, rolled about, or turned upwards, or out of their axis ; and the pupils are either dilated, contracted, or natural ; but the motions of the iris are very slow, or entirely abolished. This varying state of the pupils ac- counts for the different descriptions given by HeNKE, SpRENCEL, MeTZGER, ScHlIIDTMiJLLEn, ScHMALz, Dressig, and others. The face, which was generally at first pale, now becomes in- jected, tumid, and livid ; the forehead con- tracted and wrinkled ; the lips are at one time contracted, elongated, and pushed forwards, and at another drawn forcibly backwards ; the teeth are gnashed ; and the jaws so forcibly moved as to produce a remarkable stridor, or even to break the teeth. Van Swieten saw dislocation of the jaws, owing to their violent action. The tongue is generally swollen, livid, forcibly protruded between the teeth, and more or less injured in consequence. The arms are tossed about vio- lently or struck against the chest ; and the hands and fingers rapidly perform the motions of flexion, extension, &c. The lower extremities are simi- larly convulsed. The thumbs aredrriwn inwards, and the toes incurvated. The convulsions are often more violent on one side than another. In some cases, much fulness of the abdomen and hypo- chondria is observed, often with borborygmi or singultus. 10. Respiration, which was at first interrupted by the spasm of the thoracic muscles, and per- formed as if the chest were placed under a load, or as in the act of stran;;ulation or suffocation, until a state of partial asphyxy was produced, now be- comes quick, short, irregular, and sonorous. The patient sometimes screams, or utters the most un- natural and prolonged sounds, or the most extra- >agant expressions, but more frequently moans piteously ; and the forcible expirations throw out a white tenacious froth, sometimes coloured with blood, over the lips. Tissox lias observed the saliva sometimes to possess a cadaverous odour ; and Macbride and others have remarked, in rare instances, blood to escape from the ears : epistaxis is more common. The pulse is often quick and small, but it is felt with difficulty ; and is usually irregular, becoming more distinct, slower, and more languid towards the close of this stage. The action of the heart is loud, vehement, or tumul- tuous ; and that of the carotids much increased. I'latus is often expelled involuntarily, sometimes with the fffices and urine ; and the erection is occasionally followed by a discharge of semen, or of the prostatic secretion. At last the convulsions subside ; foetid perspirations break out about the head, neck, and breast; the interrupted and con- vulsive respiration is followed by deep sighs ; and the spasms of the muscles, by subsultus; voniiting or eructations sometimes occur, and the patient passes into the next stage. The duration of the first and second stages varies from less than one to fifteen or twenty minutes. If they be prolonged beyond this, death is generally the consequence ; which, in the most violent cases may also occur in the first stage, from the asphyxy occasioned by the spasm of the respiratory muscles ; or in the second, from the degree of cerebral congestion and its more direct effects. 11. (c) The (/(i'rrf stage, or that of collapse, is the most prolonged, and is characterised by a con- tinuance of tiie loss of consciousness, by the dis- appearance of the convulsions, by the deep and often snoring sleep into which the patient falls, and by the gradual return of the sensibility, which may be now momentarily roused by powerful ex- citants. The perspiration which had broken out at the close of the last stage becomes more copious and general, aad continues for about an hour ; the pulse is now fuller, softer, and sometimes slower; the respiration freer and easier; and after a while the patient awakes as from a deep sleep, and is restored to perfect consciousness ; but is stunned, or wearied and exhausted, and complains of headach, or pain in the neck, or occiput. Sometimes the eyes remain, for a considerable time, fixed, dull, or squinting, and the pupil en- larged. The patient has no recollection of what has passed. His speech often falters, and he occasionally feels greater weakness in some one limb or other. These symptoms gradually dis- appear, but disinclination to exertion reinains. 12. The duration of the whole paroxysm is ge- nerally from five or ten minutes, in the slight and imperfect cases, to three or four hours. M. Es- QuiROL has seen it continue five hours. I have seen it last more than four — in one case seven hours, the seizure consisting of two fits, with an indistinct interval of soporose exhaustion ; and in another, ten hours, the attack consisting of several fits, without any remission attended by restored sen- sibility. The long attacks generally consist of two or more short fits, a slight remission taking place between each. The return of the fits is extremely various in different cases. Several years may elapse between the seizures, as in a case in which I was recently consulted ; or one, two, or three years may intervene. In a few cases, they have appeared every year at the same period, or even day. When they occur monthly, a stated day is more frequently observed, which often coincides with the new dr full moon, — a coincidence much insisted on by Galen, Aret^us, Arnold of Villanova, Gehler, Hoffjiann, Mead, and others. The interval of a lunar month is mere commonly noticed among females, from the connection of the disease with the uterine func- tions. In some instances, the paroxysms occur every week, on the same day ; and occasionally every day, or night, at the same hour ; but they most frequently come on when first falling asleep, and are often, for a tiinc, unsuspected ' or overlooked. Sometimes seveval slight sei- zures take place in one day ; but their recur- rence is often extremely irregular. When they are neglected, they usually either become more and more severe, or occur after shorter intervals. Consciousness and sensation being aljolished, pain cannot be felt, during the fit. 13. The slialit or imperfect seizures — thQ Petit 3 E 2 788 Mai of French writers — are very varied in cha- racter. They often precede, for months or years, the full evolution of the severe form of the dis- ease. Generally they consist of loss of conscious- ness, and slight rigidity, spasm, or convulsions of a few muscles, or of one or more limbs, which continue only one or two minutes. In still slighter cases, the patient is seized with vertigo, loss of consciousness and sensation, and muscular collapse or slight spasm of a few muscles, and is, after some seconds, completely restored. In some instances, the eyes of the patient become fixed and vacant ; he attempts to articulate, but is un- able ; loses consciousness for a very few seconds ; and, upon recovering it, takes up the thread of discourse which the seizure may have interrupted, and endeavours to conceal the occurrence. Occa- sionally the slight seizures very nearly approxi- mate those of hysteria, or are associated with se- veral hysterical symptoms. In many instances, the patient does not fall to the ground, although he may have been standing at the time of attack ; and in others, consciousness is not entirely abolished, the patient retaining a vague recollection of what passed in the seizure, upon recovery from it, as after temporary delirium or dreaming. These slighter fits may recur eitiier frequently or very rarely, but they commonly return after short inter- vals, and sometimes as often as several times a day. 14. D. Of the intervals between the ■paroxifsms. — After the fit, the patient complains of lassitude, of soreness of the limbs and of parts that have been injured, and is pale, sad, and fearful of its return. In some severe cases, the face is studded, particularly about the eyes and temples, with numerous small ecchymoses arising from minute extravasations from the extreme capillaries of the rete mucosum duiing the congestion to which they had been subjected in the paroxysm. In rare cases vomiting or purging of blood is observed, owing most probably to sanguineous exhalation from the congested capillaries of the digestive mu- cous surface. Sometimes paralysis of a limb, more or less complete, or strabismus, or even ir- regular movements or convulsions, or various jhal- lucinations follow tlie severer attacks, and continue several hours, or even days. In a case to which I was very recently called, paralysis of the left arm, and severe pain in the right eye-ball and temple, continued after the fit — the former for some hours, the latter for several days. Deaf- ness, watchfulness, terrifying dreams, slight or passing delirium, occasional convulsive move- ments (Aret.'eus, &c.), and fits of absence or forge tfulness, often afflict the patient, either for some time after an attack, or during the ■whole interval. Between tlie complete parox- ysms, as well as before their evolution, the slight seizures described above (§. 13.) in one or other of their forms — sometimes so slight as to amount merely to vertigo with momentary loss of con- .sciousness, or spasm of some part — the Verlige J^/jt/e/j/iVyKe of French writers, are very common. Various signs of mental alienation often appear, ■which generally become more and more remark- able after successive, more frequent, or severer attacks, until insanity is the result. Epileptics commonly experience, during the intervals, vari- ous dyspeptic disorders ; but their appetites are usually very keen, and seldom duly restrained. J. f RANK states, that he has seen persons suffer EPILEPSY — Consequences and Terminations. little disturbance after a fit, and others display increased activity of both mind and body, until its approaching return ; but this is a rare exception ; the great majority, even of those who suffer the least, being incapable of devoting themselves to any undertaking with attention and perseverance. 15. II. Consequences AND Terminations. — Persons long afflicted by the disease, gradually acquire a peculiar physiognomy, owing lo the re- peated distension of the vessels of the head, and to the frequent spastic and convulsive actions of the muscles of the face during the paroxysms. This is particularly the case in such as are ad- dicted to masturbation — a baneful practice which is common among epileptics, and, indeed a prin- cipal cause of their malady. This alteration of the features has been noticed by Aret^eus, who mentions their pale or leaden complexion, and their languid dejected look : but Dumas and Esquirol have described it most accurately. The individual features become coarse ; the lips thick ; the lower eyelids swollen ; the eyes unsteady, full, and pro- minent ; the look vacant ; the pupils dilated ; the cheeks pale.; the finest countenances plain; the muscles of the face subject to twitchines, or slight convulsive movements ; the arms and limbs thinner than the rest of the body ; and the gait peculiar. The functions of organic life likewise languish, obesity or emaciation being a common result. When the disease appears or continues after puberty, or the fits return frequently, the mental as well as the bodily powers become greatly im- paired. These consequences are, however, in some respects connected with the states of nervous function, and the circulation within the head directly producing the seizures ; the pathological conditions, which, at their commencement, and in slighter degrees, occasion the epileptic seizures, giving rise, in their advanced course and height- ened grades, to various associated maladies. After the continuance of the disease, the patient is at first listless, incapable of energetic ex- ertion, and sometimes hypochondriacal. He is liable to attacks of stupor, and complains of lassitude, flatulency ; of various forms of in- digestion, generally attended by a craving appe- tite ; of great torpor of the bowels ; of vertigo and tremors, &:c. He is subject to deafness, amaurosis, and, in prolonged cases, to irregular muscular contractions, or paralytic tremors, to partial paralysis or complete hemiplegia, to im- perfections or even loss of speech, to apoplexy, to melancholy, to partial or complete, or to inter- mittent or continued insanity, and to mania and idiotcy. 16. Notwithstanding that epilepsy seldom passes into the apoplectic state, until after re- peated fits, yet both maladies may be associated in the very first seizure. (See § 40.) Insanity and mania, although not generally appearing until after several or many attacks, are by far the most frequent consequences of epilepsy ; but I believe much more so on the Continent than in this country ; whilst apoplexy and paralysis oftener supervene here than there. Van Swie- TKN states, that persons who have become insane at an early age, have been generally first epileptic. EsQuiuoi. has come to a similar conclusion ; and my experience confirms it ; the seizures, how- ever, having been sometimes of an irregular con- vulsive kind, rather than those of true epilepsy. In I this fretjueCit class of cases, the mental faculties are gradually impaired; sensation and memory are weakened, the former being often acute ; perception and imagination perverted ; various hallucinations generated ; and the patient lapses into a state of incurable insanity or imbecility, or passes from the former into the latter. The more severe the fits, the more is tiiis result to be dreaded. Sometimes violent attacks of mania follow the paroxysms. Of 289 epileptics in flie Saltpetriere, in 1813, 80 were maniacal, and 56 in various states of mental alienation and imbe- cility. In 1822, out of 339 cases in the same hospital there were two monomaniacs, 30 maniacs, 34 furious maniacs, 129 insane for some time after the paroxysms, 16 constantly insane, 8 idiotic ; 50 upon the whole reasonable, but with impaired memories, and liable to occasional slight delirium, and tendency to insanity ; and 60 with- out aberration of intellect, but susceptible, iras- cible, capricious, obstinate, and presenting some- thing singular in their characters. As this institution receives chiefly old and severe cases of epilepsy, it furnishes sufficient illustrations of the consequences of this disease. Occasionally the epileptic mania alternates with melancholia and a desire to commit suicide ; the mania often preced- ing the paroxysm. Dr. Cheyne states that he has known epileptics preserve their intellects to a very old age ; but this is only the exception to the general rule, for tliey seldom live to a great age, or retain their fiiculties when they reach it. 17. The duration of the disease is most uncer- tain and various, and depends upon numerous cir- cumstances connected with the regimen, habits, and treatment of the patient. Epileptics are most injuriously addicted to the indulgence of the an- petites for food, and for the sex, — practices which should as much as possible be guarded against, as tending not merely to counteract the good effects of treatment, but also to induce the un- favourable consequences of the seizures enu- merated above. A favourable termination is indicated by the fits being slighter, shorter, and more distant. Sometimes a marked crisis occurs — as the return of a suppressed evacuation, par- ticularly tiie menstrual and hfemorrhoidal fluxes, epistaxis, &;c., the reappearance of a repelled eruption, &:c. An attack of continued fever has removed the disease, — but very rarely when it has become confirmed. M. Esquirol states that in 1814, when typhus fever raged in the Salpetriere, although upwards of fifty epileptics were attacked by it, and but few died, little or no amelioration was observed in any. 18. A person subject to epileptic fits may die of other diseases, or of a malady proceeding from an increased grade of the same changes, which, in a less degree, occasioned the fits ; or of the direct or indirect effects of the repeated seizures ; death taking place sometimes in the intervals, but more frequently during the paroxysm or soon afterwards. When it takes place in the interval, it is occasioned by the remote effects of the fits, in connection with the pathological states inducing them — by some one of the diseases consecjuent upon them (§ 38. et seq.). If it occur during or soon after the paroxysms, it is generally owing to an augmented degree of the same changes usually producing them, or to some further alter- EPILEPSY— Causes. 789 ation directly proceeding from tliese changes J either upoplcxif caused by excessive congestion within the head, or by extravasation of blood in some situation, or by effusion of serum in the ventricles or between the membranes of the brain ; or asphi/xy occasioned by similar lesions affecting the medulla oblongata and upper part of the spinal chord, being the immediate cause of dissolution. It has been supposed, that suffo- cation often occurs in the paroxysm, owing to the position of the patient, or of the clothes around him when in bed. But this, 1 believe, rarely takes place ; and when suffocation, or rather asphyxy, is met with, itis caused chiefly, if not altogether, by some one of the changes just stated. 19. III. Caiises.' — i. Fredisponeiit. — Heredi- tary disposition is a remarkable predisposing cause of epilepsy, notwithstanding this kind of influence has been disputed in respect of it. But although the father or mother of the patient may never have had an attack, either of the grand-parents, or uncles, or aunts, may have been subject to it. Zacutus LusiTAMis(Pra.r. ad Mir. 1. i. obs, 36.) mentions the case of an epileptic man who had eight children and three grandchildren afflicted by the disease. Stahl (Be Hered. Dispos, ad var. Affect. Halas, 1706, p. 48.) and Reimnger adduce instances of the whole of the members of a family being attacked by it at the period of pu- berty. BoERHAAVE (Aphorisms, 1075.) remarks, that, like several other hereditary maladies, it often passes over alternate generations; and he adduces an instance (Pra.r. ilierf. t. v. p. 30.) in which all the children of an epileptic father died of it. I had, in 1820, a brother and sister some time under my care, who inherited the disease from their father, and they had two other brothers and one sister also subject to it — in all five. The fits appeared in all of them about the period of puberty ; and one of the brothers died about the age of forty from apoplexy, complicated with the seizure. IM]M. Boucher and Casauvieilh slate that in 110 patients, respecting whom they had made the enquiry, 31 were hereditary cases; and M. Esquirol found, that in 321 cases of epileptic insanity, 105 were descendedTrom either epileptic or insane parents. Predisposition is often con- nected with congenital Jormation. 1 have seen the disease iu several children, whose heads were of an oblique or diamond shape, or otherwise ill- formed ; one side being more elevated than the other, and either side advancing or receding. Peculiarity of constitution, or idiosyncrasy, seems to predispose to it, as well as the epochs of child- hood and puberty, at which periods the nervous and muscular systems are endowed with their greatest sum of sensibility and irritability, and the whole frame with great susceptibility. Cases, however, often occur, in which these properties are rather diminished than increased. After pu- berty is fully attained, the disposition to the disease is greatly lessened. ,. 20. The influence of sex is not remarkable ; and is not manifested until after the second den- tition. According to Esquirol and Foville, females are more subject to the disease after this epoch than males. At the end of 1813, 162 male epileptics were in the BaVne, and 289 female cases iu the Salpetriere. J.Frank found, that of 75 patients, 40 were females ; but he agrtcij 3E3 790 EPILEPSY — Causes, with Celsus, Heberden, and Soemmereixg, in believing, that if a strict diagnosis were established between this and other convulsive diseases to which females are very liable, particularly several of those seizures described in the article Convul- sions, the predominance would be found on the side of the males; and Drs, Cooke, Eliiotson, and CnEVNE are of the same opinion. IMJ\I. BoucHET, and Casauvieilh ascertained, that of 66 female epileptics, 38 were seized before their first menstruation, and 28 subsequently to that epoch. I agree with M. Foville in thinking the disease more prevalent in the Imcer than the upper classes. M. EsQUiROL states, that the melancholic temperament is more disposed to it than any other. Dr. PmcHARD seems nearer the truth, in saying that it is common to all temperaments and hahiis ; but it is not equallii common to all. Dr. Cooke remarks, that almost every case he has seen lias occurred in sanguine temperaments and plethoric habits. This does not agree with my experience, which leads me to infer that it is most frequent in persons who are eitiier very plethoric or very much the reverse. Its greater prevalence in per- sons of a, scrofulous and rickety diatlicsis, than m any other, has been shown by Hufeland and Portal, and is undoubted. J. Frank remarks, that more than half the cases in his practice were strumous. Dr. Cheyne would make t!ie pro- portion even larger. De la Fontaine and Frank found epilepsy extremely common amongst those born of parents aflected by the Plica Pulonica. An exhausted state of frame occasioned by what- ever means, a cachectic habit of body, tlie syphi- litic and mercurial poisons, and scorbutus, also dispose to the disease. Great activity of tlie mental faculties, and an exalted or excited state of mind, may predispose to it; and in proof of this, the circumstance of Julius Caesar, Maho- met, Petrarch, Columna, Francis Rhedi, Housseau, and Napoleon, having been subject to it, has been adduced by authors. But in men of strong minds and powerful talents, the disease has seldom or ever occurred, until the nervous energy has been exhausted by exertion, or by the excitements and anxieties of life. Suetonius (1. i. cap. 45.) states, that it was only in the last part of his life, that C/tsar was seized with epi- lepsy ; and that he had two attacks while he was engaged in business. It seems more prevalent in some countries than in others. This has been referred to peculiarity of climate, especially to cold and moisture. It is more evidently de- pendent upon moral causes, particularly to ex- cessive and ])remiiturc venereal indulgences, which are more common in some countries than in others ; the disease being very prevalent in tlie south of Russia and Germany, in Poland, in Italy, and France — certainly much more so than in this country and the United States. Hippocrates and TissoT tliink it most frequent and severe in spring, but this is not remarkably the case, and has been denied by seveial writers. 21. It has been asked. Whether or no this disease is more common now than formerly? '['lie dissolute habits of the ancient Greeks and Romans lead me to infer that it was at least as prevalent among them as with u^. Panaroli states, that it was very frequent among the rich and noble Romans, particularly during the acme and de- cline of their greatness, when the utmost luxury. dissipation, and debauchery prevailed among the higher classes under the emperors, 22. ii. The occasional Exciting Causes are re- markably numerous and diversified. Various circumstances may concur in exciting the first seizure ; and where no marked predisposition to it exists, a concurrence of several causes is requi- site to its production; but, when once produced, a single, and even a slight, cause may occasion subsequent attacks. This class of causes acts variously : — 1st, Many directly change the phy- sical condition and circulation of the encephalon ; — 2dly, Others aflTect the organic nervous influ- ence and circulation of the brain, through the mediun\ of the sensations, perceptions, and other operations of the mind ; — and 3dly, Some act upon various remote organs or parts; the brain and nervous system being only consecutively and indirectly aflected. — (a) Injuries of the head; fractures, depressions of a portion of one of the bones of the cranium, concussions of the brain or spinal chord ; tumours, and the numerous pathological changes in the brain, its vessels, and its membranes, or in the cranium, described in the articles Brain, and Cranium; partial or general inflammation of the brain, or of its mem- branes ; diseases of parts immediately adjoining, as of the cranial bones, the scalp, the medulla oblongata, and spinal chord, the ear, eye, &c,, or of the vertebras, &c. ; excessive haemorrhage and discharges; hypocatharsis, or blood-letting carried too far ; omitting accustomed and requi- site evacuations; insolation; the suppression of otorrhoea, of porrigo, and other eruptions; pro- longed sleep ; and the metastasis of gout or rheu- matism to tlie encephalon ; are the principal causes which act in the first mode pointed out. — (b) All inordinate affections of the mind may induce a seizure in persons predisposed to it, either by "exciting the nervous influence, and cerebral circulation too far above the natural pitch, as joy, anger, fits of indignation, coition, &c. ; or by depressing the one or retarding the other to a degree incompatible with the con- tinuance of the vitjfil functions — as terror, sudden alarm, grief, protracted anxiety, a sense of disgust, the impression of various odours, excessive mental application or exertion, &c., nostalgia, disappoint- ments, unrequited, or forbidden affection, long- ings after objects of desire, or love, &c. Pro- longed want of sleep; very great or enduring pain ; diflScult dentition ; great surprise; fright- ful dreams ; appalling and distressing sights ; seeing others in the paroxysm ; nervous irritation ; titil- lation, whirling rapidly round ; excessive sexual intercourse and masturbation ; ill-controlled states or flights of imagination, &c.; are also very common and powerful causes. M. Esquirol, whose experience in this disease has been un- equalled, truly states that fits of passion, distress of mind, and venereal excesses, iiold the next rank to terror, &c. in exciting the disease. — (c) Tlie causes which act in the third mode are ex- ti'cmely numerous; persons who have become subject to the disease often experiencing a seizure from very slight occurrences. The most common are, however, the indulgence in too much, or in improper food ; a heavy meal taken shortly before retiring to rest ; the use of spirit- uous and ferfliented licjuors, or of coffee, in excess, very high teinperalurc, impure air, and EPILEPSY— Varieties 791 crowded assemblies ; exposure to great cold ; irri- tation of worms or morbid matters in the prima via ; various acrid, narcotic, and aero-narcotic poisons, the injudicious use of strychnine, &c. There are several causes, the operation of which is either not well known, or connected with the dia- thesis and peculiar pre-disposition of the patient ; and others — as, indeed, many of tiiose justenume- rated — which manifestly act in more than one of the ways pointed out above. The most remarkable of these are disorders of other organs or parts, par- ticularly functional or structural diseases of tiie heart, of the digestive canal, of the liver, and of the generative or urinary organs ; the presence of a cuL- culus in either the kidney, the ureter, or bladder (Bartholin, De LA JMoTTE, Brendal,Sauvages, &c.), or of a, gall stone in the ducts (Jens, Beames, &c.) ; the irritation or lesions of remote nerves ; the syphilitic and mercurial poisons, &;c.(LAr!REY). 23. Dr. Hebreard ascertained that, of 162 male epileptics in the Bicetre at Paris, 119 were unmarried, 33 married, and 7 widowers. Ac- cording to Locher (Observ. Pract. in Vien. 1736, p. 36.), out of 80 cases, 60 were occasioned by frights of various kinds and degrees : but, of 69 cases, MM. Bouchet and Casauvieilh found only 21 that could be referred to this cause. The excitation of the feelings or passions pro- duced by dramatic performances has also brought on an attack. J. Frank states that, before epi- leptics were separated from the other patients in the wards of the Civil Hospital in Vienna, it was not uncommon for some of tiie other patients to be seized with the disease from sympathy or imitation upon seeing the epileptic paroxysm. This has been observed by Baglivi {Opera, 1. i. cap. 14.), Lettsom {Mem. of filed. Soc. of Lond. vol. iii. p. 383.), Duncan (Med. Cases, Edin. 1778.), Aaskow (Coll. Soc. Med. Hatin. vol. ii. p. 14. 22.), Meza (Comp. Med. Pract. fasc. v. p. 15.), and Hardy (Lond. Med. Gazette, vol. xi. p. 247.). I have seen it occur in one instance ; but I believe that the form of con- vulsion described in § 17,18. of that article is more frequently produced by this circumstance than true epilepsy, unless in persons liable to this malady. Various writers, particularly Galen (De Diebus Criticis, 1. iii. c. 2.), Ahet^us (De Caus, et Sig. Morb. 1. i. c. 4.), Alexander Trallianus (1. i. c. 15. 21.), Camera rius (Me- morah. cent. ii. n. 38.), Riverii's, F. Hoffmann (Institut. i. iii. c. 88.), Stahl, INIead (De Imp. Solis et Lume iSjc, Lond. 1704.), Wedel (Ephem. Germ, An. ii. decur. 2. obs. 148.), IIumpelt, BuRMESTER_(£)e Morfeo Spastico,S)C. Goet. p. 21.), Otto (De Planet, in Corp, Hum. Influxu, Franc. 1805.), have insisted upon the more frequent occurrence of the paroxysm at the periods of new and full moon than at any other. Indeed, lunar influence on this disease seems to have been generally believed in by the ancients; and hence one of the names given to it by them. The supervention of epilepsy during the early stages of the exanthemata, or upon the disap- pearance of the eruption, is much more rare' than stated by many writers ; for the seizures that sometimes take place in such circum- stances are more strictly symptomatic convul- sions, and seldom return afterwards, unless in those much predisposed to this disease. A simi- lar remark also applies to the violent convulsive attacks, which occur duilng, or about the period of, parturition ; and which, although they possess most of the characters of epilepsy, particularly of the uterine variety, do not necessarily return at any other period, or even on a subsequent confinement, unless in females who are really epileptic, who are very liable to dangerous seizures at this particular time. 24. Various nervous diseases sometimes pass into epilepsy, either of a simple or complicated form, — most frequently the latter. Hysteria, chorea, catalepsy, cataleptic ecstasy, somnambulism, and symptomatic attacks of convulsion, when neg« lected or improperly treated, occasionally ter- minate in confirmed epilepsy, with various asso- ciated disorders, and not infrequently in some one of the complicated states hereafter to be noticed. Numerous affections of the digestive organs have been assigned by writers as exciting causes. But I consider them, with the exception of worms in the prima via, which are a frequent cause, particularly in children, as coexistent with, or contingent upon, the commencement of that state of organic nervous power and circula- tion in the brain producing the disease, and that the disorders of the digestive organs, as well as this early state of cerebral affection, equally depend upon deranged vital manifestation throughout the organic nervous system. 25. IV. Varieties of Epilepsy. — Various di- visions have been proposed with the view of fixing with greater precision the treatment which is most appropriate to the different phases of the com- plaint. Aret.eus and other ancient writers dis- tinguished it by the terms acute and chronic. One of the most commonly adopted divisions is that into idiopathic or cerebral, and sympathetic or originating in disorder of some other organ. Piso long ago doubted the existence of the sym- pathetic disease, and MM. Georget and Bos- QuiLLON have adopted his opinion. These writers contend, that the sensations, or disordered feel- ings manifested in remote organs, may actually have their seat in the brain ; and that the aura felt in a distant part may depend upon an original cerebral affection. Those who believe in the sympathetic forms admit that the seat of the paroxysm is always the encephalon ; its cause, or the disorder which excites the cerebral affec- tion, on which the seizure depends, being often in other organs. Hence they subdivide the sympa- thetic species into as many varieties as there is disorder manifested in other organs — into the spinal, the cardiac, the gastric, hepatic, intes- tinal, nephritic, genital or uterine, the nervous, &c. Sauvages and Sagar (Systema Morborum, 8^c, p. 442.) make as many varieties as there are principal exciting causes. Vogel (De Cog- nosc, et Curand. Corp. Hiimani Ajfectibus, p. 404.) notices the cerebral, that depending upon disorder of the digestive organs, and that arising from irritation of other parts. Dr. Cullen admits two species, the idiopathic and symptomatic — and distinguishes the former into the cerebral, the sympathetic, or that attended by a«ra, and the occasional, or that arising from son\-iwsa of Dr. Cheyne. But these are merely phases of the same variety ; and not different species, as described by some recent writers. Uterine epilepsy sometimes pro- ceeds from delayed, or difficult, or obstructed catamenia, and generally returns about the men- strual period. Frequently, the same causes which disorder the uterine functions, also induce this disease ; as sudden alarms, terror, anxiety of mind, manustupratio, disappointed love, nostalgia, great fatigue, cold applied to the lower parts of the body, &c. This variety is most common about, or soon after, the period of puberty ; and in young females of a sanguine temperament, light eyes, ruddy complexion, and plethoric habit of body ; and is associated not only with dif- ficult or suppressed menstruation, but with va- rious symptoms of irritation of the uterine organs, or with too frequent or excessive menstruation. I have remarked that the paroxysm oftener occurs after the subsidence of the menstrual evacuation than either before it or during its continuance ; and that the fit commonly com- mences in the leipothymiac or cardiac form. Although hysterical symptoms are observed in other varieties of the disease affecting females, yet they are most common in this, especially in nervous and delicate constitutions. These symp- toms are, vertigo, faintings, palpitations, the globus or clavis hystericus ; pain about the sa- crum, under the left breast, or in the left side, or in either mammae ; large evacuations of pale urine; borborygmi ; and occasionally hysteric de- lirium.— (6) The irritation of calculi in the kidneys or urinary bladder may likewise be con- nected with epilepsy ; but I agree with Frank in thinking that this disorder induces convulsions more frequently than genuine epilepsy. This latter is more commonly associated with great irritability of the male oi'gans, both affections having been brought on by masturbation ; in- ordinate excitement, whether mental or physical, occasioning a paroxysm. There are few states of the disease which oftener present extreme ful- ness, or deficiency of blood than this. 38. iii. Complicated Ejnlepfy — E. Complicata. EPILEPSY — Complicated — Besides the association of diseases of distant parts with epilepsy, various important complica- 795 tions of other maladies of the nervous system with it, very frequently present themselves in practice. In most cases, the complications are of the kind above noticed (§ 15, 16.) — are merely conse- quences of an advanced grade of the same changes upon which the epileptic paroxysms seem to depend, or these heightened by the effects of the repeated seizures. But in others, different affections of the nervous system long precede the occurrence of an attack ; and in some instances the complication is manifested from the com- mencement; and occasionally, even the first or second seizure is of a mixed kind. 39. (a) The most frequent complication is that with mania and other forms of mental alienation. Much attention has been paid to this state of disease by Continental writers, particularly by EsQUIROL, GrEDING, GuISLAIN, FrANK, CaL- MIEL, BOUCHET, CaSAUVIEILH, and BOUILLA'JD, and by Dr. Prichard. The mental disorder generally appears in the course of prolonged cases, and at first immediately after the seizures, in an intermitting form, and as stated above (§ 15, 16.) ; but it is occasionally the original affection, the epileptic paroxysms supervening in the most protracted and hopeless cases of insanity, imbecility, or idiotcy. ^\ hen it occurs early in epilepsy, the fits usually pass into a maniacal state of delirium, remaming longer or shorter after each, until continued and confirmed insanity is the result. This complication is sometimes con- genital, and is then often connected with mal- formation of the cranium. It very frequently seems to depend upon chronic or sub-infiamma- tory vascular excitement in the encephalon, affecting chiefly the cortical and medullary struc- tures of a part, or parts only ; and is often fur- ther associated with diseases of either the heart, the digestive canal, the biliary organs, or the uterine functions, as shown by the instructive researches of Greding, Prichard, Bright, Bouchet, and Casauvieilh. — This state of disease may even ultimately pass into apoplexy or paralysis, before it terminates fatally. 40. (/;) The apoplectic complication may occur as stated above (§ 16. 18.), or the very first seizure may be a combination of apoplexy with epilepsy. Of this latter, I have seen two cases within six months of writing this ; — one, that of a female of middle age, attended by Mr. Byam ; the other, that of a corpulent man of sixty-three years. The former of these recovered, the latter died. When the apoplectic and epileptic seizures are thus associated, the distinctive features of either may precede those of the other. In the two cases now alluded to, the seizure was apo- plectic at its commencement, the true epileptic convulsions not appearing until after some time ; but more frequently the apoplectic phenomena supervene upon the epileptic fit. Partial or gene- ral convulsions are not infrequent in the course of an apoplectic attack. But these do not consti- tute the complication now being considered; for in it, the stages of the epileptic fit, as described above, with the characteristic phenomena — injury of the tongue, priapism, &c. — are clearly defined. In this kind of seizure, one or more limbs, or one half the body, may be paralysed ; but as often, this additional affection is not observed. The se- vere forms of convulsions which occur in the puer- peral states sometimes very clearly approach, or are altogether identical with, this complication. But they are rarely connected with paralysis. Notwithstanding the obvious relation betweea epilepsy and apoplexy, and their frequent com- plication, the subject has been unaccountably overlooked, even by practical writers ; it having been incidentally noticed only by a few, until Dr. Bright directed attention to it (Med. Reports, vol. ii. pp. 198. 519.). Hippocrates (nep; 'aJevcov, ^ ix. v. 103.) seems, however, to allude to it ; and his commentator, Martianus (A7inot. in Lib. Hip, de Gland, v. 103.), Morgagni {De Sed, et Cans. Morb. ep. iv. sect. 4. 5. et ep. ix.), and Dr. Prichard (On Nerv. Dis. p. 59.) mention it somewhat more explicitly. 41. Nearly allied to this complication, especi- ally to the slighter of those seiziires which com- mence as apoplexy, is that form of attack men- tioned by Dr. Prichard (p. 86.) as intermediate between apoplexy and epilepsy. In these fits, the patient falls to the ground, and lies for some time in a state of insensibility ; but without any rigid- ity or convulsion of the muscular system. They are sometimes preceded by vertigo; and seem — at least, in the cases which I have seen — to be slight forms of those attacks which I have as- cribed to sudden congestion of blood on the brain (see Brain, § 139.), probably with some degree of affection of the Jnedii //a oblongata. They evi- dently are connected with epilepsy, inasmuch as they are occasioned by the same kind of causes as produce it, and are often met with in persons at other times subject to epileptic or convulsive seizures; the one species of fit frequently passing into or superseding the other. They are often consequent upon disorder of the uterine functions, and upon hysterical affections ; and they then sometimes become convulsive as the attacks subside. 42. (c) The complication of epilepsy with pa- ralysis may appear in the same manner as the foregoing; the latter occurring either during the advanced progress of protracted cases of the former, or almost contemporaneously with it, or even long previously to it ; but I believe that pa- ralysis is most frequently consequent upon the epileptic seizures. Of this I have seen several instances ; the paralytic affection consisting of loss either of sensation, or of motion, or of both, in one limb, or in half the body ; and occasionally of loss of sensation in one limb, and of loss of motion in another on the opposite side. Although this association is most common after repeated seizures, yet have I met with it after the first ; the paralysis either disappearing some days or weeks afterwards, and recurring after each fit, or being from the first permanent, or ultimately be- coming so. In some cases the paroxysm follows the paralysis, and at last passes into coma or apoplexy. Dr. Ferriah (Med. Hist, and Reflect, vol. ii. p. 11.) ; Dr. Percival (Essays, Med. and F.xperim. vol.i. p. 148.), and Dr. Prichard (On Nerv. Dis. p. 60.), have recorded cases of this kind. Occasionally the paralytic state entirely supersedes the epileptic seizures ; this latter dis- appearing, but the former being permanent. But this complication may be further associated with insanity or imbecility, or with amaurosis ; and the seizure may, moreover, present a mixture of 793 EPILEPSY — Appea epilepsy and paralysis, or a state intermediate between botli, as remarked by Piso, Mead, Fer- HiAR, Prichakd, and myself. 43. {d) Of the other complications, little be- yond the mere mention is necessary. — Hysteria, chorea, catalepsy, and somnambnlism, not infre- quently pass iiito epilepsy; and the seizures are sometimes intermediate between either of these affections and this disease. In a very large pro- portion of these cases, the uterine functions, or the digestive organs, are more or less disordered at the same time — such disorder proving the determin- incr cause of ^the aggravated or epileptic character of the attaeks. — Epilepsy may be also associated with hifpochondriasis and melancholy , the digestive 'and biliary organs being generally remarkably disordered in these cases. I have likewise seen it alternate with delirium tremens, or this latter affec- tion follow a regular paroxysm of epilepsy ; and the same case, which has been thus associated, may ultimately pass, after a recurrence of the fits, into permanent mania or paralysis.* 44. V. Appearances after Death. — It has already been stated (§ 22.), that epileptic seizures may be connected with any of the organic lesions described in the articles ISrain, and Cranium ; but they sometimes are independent of any change cognisable to the senses. Appearances, however, vary much according as death has taken place in the fit or in the interval, and as the disease has been simple or complicated. 45. A. — (a) In the simple states of the disease (§ 26.), when the patient has died of some other malady unconnected with epilepsy, and has evinced no disorder of the locomotive and intel- lectual powers, either immediately after the fits, or during the intervals, little or no alteration can be detected in the nervous system. Occasionally, small tubercles, increased vascularity in parts, or bony deposits, and various other very slight changes, which are frequently observed without having produced any disorder of the nervous functions, are detected ; but these may be viewed as coincidences rather than as lesions connected with this disease. — {b) When the patient dies during the attack of simple epilepsy, the substance and membranes of the brain and cerebellum are generally loaded and injected with dark blood, as observed in persons who have died from hanging or asphyxy. 15ut this change is no further con- nected with epilepsy than being contingent on the form and mode of death in the paroxysm. 46. B. — (a) In the complicated states (§ 38.), especially in that with mental disorder, lesions of great diversity are generally found ; consisting chiefly of induration of the medullary substance of the brain, frequently with more or less injec- tion; and of considerable dilatation of the blood- vessels. In some cases accompanying the dila- tation of the vessels, the medullary structure is soft, flabby, or flaccid. These alterations are • I was, whilst writing this, called to a man reduced in circumstances, from habits of intoxication ; and who had experienced two or more attacks of delirium tremens. He was seized with an epileptic fit, brought on by the fear of being run over by a carriage near his own house. He had a return of the delirium tremens upon re- covery from the paroxysm. A gentleman, given to oc- casiimal Intoxii-.itioii, was lately under the care of INIr. (;\iiri;u nml iny^cU. lie has had regular attacks of epilepsy, followed \j\/ duliriuni tremens. The last pa- roxysm has not been followed by this affection, but by threatened paralysis. RANCES AFTER DeATH. generally limited in extent ; but are met vvitti in. all the white portions of the encephalon. In ad- dition to these, the grey substance often presents inequalities of surface, alterations of colour and consistence, and vascular injections — the usual results of chronic inflammation; and, in some in- stances, adhesions of a portion of the cortical sur- face to the membranes, or accumulations of serum in the ventricles. Greding states, that of sixteen maniacal epileptics, the lateral ventricles of thir- teen were filled with serum ; and the brain softer than natural in nearly the same proportion of cases. In rarer instances, partial or general atro- phy or hypertrophy of the brain is met with. — <^b) In epilepsy complicated with apoplexy, either extreme injection of the vessels with dark blood, or the appearances presented by the different states of that disease, or great effusion of serum ihto the ventricles (Richter, Mills, &c.), are met with. In those accompanied by paralysis, tumours and various other adventitious formations, cysts, soft- ening, extravasation of blood, abscesses, and the other lesions described in the articles Apoplexy, I3rain, and Paralysis, are usually observed. 47. C. In the sympathetic states, aherations of the medulla oblongata and spinal chord, similar to those found in the encephalon, have been re- marked by MoRGAGNi, Harles, Frank, Gre- ding, and others. Water in the pericardium,; enlargement and dilatation of the cavities ; thin- ning and softening of the walls of the heart ; and diminution of its entire bulk ; have been noticed by Lieutaud, Greding, and Pew. — Hepatisa- tion and congestion of the lungs, and purulent collections in them, have been recorded by Bonet, Baader, and the writers just mentioned. — En- largement and other lesions of the liver have been observed by Prichard, Dr. Ciieyne, and myself. — In a case of abscess of the liver, lately under my care, and seen also by Mr. Copland Hutchison, an epileptic fit occurred at a time when the diaphragm was much affected. — Cal- culi in the kidneys have been met with by Bar- TiioLiN, La Motte, and Brendel ; and disease of its secreting structure, by Dr. Bright. 48, D. The Wenzels, in their numerous dis- sections, directed attention to the state of the pituitary and pineal glands; but the result of their researches, until the mistake was pointed out by Dr. Siais (Lond. Med. Guz. vol. vii. p. 374,), was referred to the cerebellum, by nearly all subsequent writers, excepting Esqui- ROL. These able pathologists found iha pituitary gland and inj'undihulum variously altered in colour, consistence, size, and structure, in nearly all the cases of epilepsy they examined ; and the spinous processes of the os frontis, the crista- galii of the ethmoid, and the clynoid processes of the sphenoid bone, more or less prominent, or otherwise changed in position and shape, in most of them. The pineal gland was also more or less altered in colour, and softer than usual, in the larger proportion of cases. — Caries, thickening, internal exostoses, spiculi, malform- ations, and malpositions, of the bones at the base of the skull, with various changes of tl>e mem- branes, were met with in several instances. In fifteen cases out of twenty, the cerebrum and cerebellum were (piite sound. Alterations in the sphenoid bone and pituitary gland have been found likewise by Greding, Neumann, Sims, and EPILEPSY — Nature of. 797 myself. Gredino has also observed changes of] some continuance ; or to sudden loss of power? the pineal gland, and fibrinous concretions ad- j or to an interruption of the return of blood to hering to the inner surface of the sinuses, — appear- ! either side of the heart ? It is obvious that, until ances likewise noticed by Wagner and myself. ' these and other points are fully ascertained, no Nearly all the lesions described in § 29. et seq. of | satisfactory conclusion can be come to respecting the article on the Brain and its Membranes have ; the nature of the disease. Numerous opinions been occasionally detected, but not so frequently as the foregoing, nor so often in this as in some other diseases of the nervous system, as insanity, paralysis, (Sec. Indeed, the most important ma- ladies seated in this system, as somnambulism, chorea, hysteria, catalepsy, ecstacy, convulsions, epilepsy, mania, apoplexy, and paralysis, are merely modifications, with exaltations of grade, of nearly the same pathological conditions. 49. VI. Nature of Epilepsy. — There are certain circumstances connected with the patho- logy of epilepsy, fully ascertained, and which should be kept in recollection in our speculations as to its nature and treatment : — 1st. That it may remotely depend upon inanition, losses of blood, or a deficient quantity or quality of this fluid. — 2d. That it may be owing to a totally opposite state as respects either the system generally, or the brain especially. — 3d. That it seldom occurs in persons whose digestive, assimilating, and cir- culating organs perform their functions regularly. — 4th. That, in the simple and early disease, it is not dependent upon any lesion cognisable by our unassisted senses, unless such lesion be seated in the medulla oblongata or pittiitary and pineal glands, — parts not yet sufficiently examined in this malady, and which may be dangerously affected without manifesting any material change. 5th. — That the appearances found in old or complicated cases are to be referred rather to the repeated derangements the circulation of the brain has suffered in the paroxysm, and to the nature of the associated disease, than to the lesions detected in fatal cases ; such lesions, however, when in- duced in the course of other disorders, being occasionally exciting or concurrent causes of the epileptic attacks. — 6th. That general congestion of the encephalic vessels evidently exists in the second or convulsive stage of the fit ; but it is not so manifest that this state is present from the com- mencement of the seizure, as cases have presented, at this period, symptoms of a very opposite con- dition.— 7th. This congestion is only a passing phenomenon, evidently caused by interruption to the respiratory actions, impeded circulation through the heart, and to the spasmodic action of the muscular system ; and is not the cause of the seizure, the principal phenomena of the fit even ceasing at the very moment when the congestion is at its height. — 8th. The paroxysms of epilepsy cannot, therefore, be imputed to the congestion, which is evidently an advanced or consecutive have been offered, but very few of them require any notice. The ancients supposed tiiat the dis- order is caused by a pituitous humour in the ven- tricles of the brain, the symptoms arising from an effort of nature to relieve herself from it, Boerhaave and Van Swieten imputed it to a morbid action of the brain exciting the nerves of motion, and obscuring those of sensation. Dr. CuLLEN considered that it may proceed in some cases from too great excitement of the brain, and in others from collapse. Numerous modern' writers have referred it to a change in the struc- ture of parts within the cranium. But opposed to this opinion, are the facts, that in the simple disease lesions are seldom observed ; and that, when observed in either the simple or complicated states, they are not uniform, or even of the same kind, and are as frequently seen in other diseases of the brain, unattended by convulsions, as in epi- lepsy. Dr. J. Johnson has remarked that the immediate cause of the attack seems to be a tem- porary local turgescence of the cerebral vessels, determined by a temporary super-excitement of the nervous structure of the parts thus affected. This opinion is very generally adopted in connec- tion with the inferences, that local turgescence or plethora causes pressure; and that pressure, when general, produces apoplexy ; when partial, para- lysis ; and when slight, epileptic convulsions, — phenomena which, doubtless, frequently arise from these conditions, but not from them alone, but likewise from others ; symptoms of pressure being very often altogether wanting at the com- mencement of the fit. Mr. jMansford, proceed- ing on the supposition that the nervous and electro- motive fluids are identical, has contended that the brain is constantly generating them, and that, in health, they are controlled by the will, in opposition to their natural tendencies; their formation, reten- tion, and discharge thereby being duly regulated ; but, when weakened by disease, this control is irregularly or imperfectly exercised, and their ac- cumulation is favoured, until it reaches its maxi- mum, when it explodes in an epileptic seizure. It is obvious that this opinion is entirely founded on a postulatum — the identity of nervous influence with the electricities — to which few will sub- scribe. Sauvages had long ago ascertained by experiment that the hemispheres of the denuded brain may be punctured wtthout exciting sensibi- lity ; but that, as soon as the instrument reaches the origin of the nerves, or the medulla oblongata. phenomenon produced as now stated ; but must j epileptic convulsions are produced (Xosol. Me- be referred to the parts on which sensibility de- \thod,\ol.i. p. 782.), and hence, concluded that pends, and which actuate the respiratory and , whatever especially affects those parts, may induce muscular organs. the disease. The opinion has been adopted by 50. Although these positions seem not to admit several pathologists, and probably approximates of being controverted, yet there are other points necessary to a knowledge of the nature of the disease that still require to be ascertained : — (a) What are the states of the heart's action, and of the circulation, particularly in the head, just i 'as nearly to the truth as can be expected in the present state of our knowledge. — The researches of the Wenzels have led them to imagine that the proximate cause is to be referred chiefly to the pituitary and pineal glands, especially the before and at the time of seizure ? — (b) Is the sus- ' former ; and it is not improbable that impairment pension of the heart's action, sometimes observed, ■ or other disorder of the function I have attributed at this time, owing to a spasmodic contraction of at another place to these parts (see Apoplexy 798 EPILEPSY 4 103, 104.), may be concerned in some way or other in deranging the circulation of the encephalic organs, and in predisposing, or giving rise, to the disease. Dr. Reid, msisting on the suspension of the heart's action at the commencement of the fit, and on the tetanic rigidity of the muscles in the first stage of it, has referred these changes to " irritation or accumulation of blood in the spinal nervous mass," particularly the cervical portion. Dr. Shearman has contended, with much justice, that simple epilepsy often owes its origin to defi- ciency of nervous energy, or irregular distribution of it, independently of vascular excitement or any primary disorder of the circulation. 51. It is unnecessary to offer any further opin- ion of the foregoing views. From a survey of the predisposing and exciting causes, and of their mode of operation, as well as of tlie connection frequently subsisting between other diseases and this, it seems probable, that changes in the organic nervous influence of the encephalon, or alterations of structure of any part within the cranium, may so affect those parts at the base of the brain, con- nected with the origin of the nerves, especially the medulla oblongata, as to suppress sensibility, derange the functions of respiration and circula- tion, and occasion inordinate action of the mus- cles, under the influence of the cerebro-spinal axis — in short, to disorder especially the func- tions depending upon these parts, in the manner constituting the disease. It may be urged that, if this affection arise from irritation or any other change in the parts now named, wherefore is it paroxysmal, or of occasional occurrence and short continuance ? To this I can only answer, that nervous excitement, not depending upon, or kept up by inflammatory action, is usually mani- fested in this form ; that any other than functional affection of the parts about the origin of the nerves of respiration cannot produce tlie disease, as any remarkable change of structure of these parts is quickly followed by death ; and that, pre- suming the change, therefore, to be functional, or at most very slightly structural, the successive phenomena constituting the difl'trent stages of the paroxysm, most probably remove for a longer or shorter time, according to the duration of the interval, the particular condition which excited the attack. According to this view, irritations or other alterations of function or structure in re- mote but related organs or structures may affect the medulla oblongata or adjoining parts, so as to induce a paroxysm of the disease, especially in persons predisposed to disorder of tiiese parts, the predisposition arising from the state of organic nervous influence and of circulation within the head. In such cases, the irritation is propagated by nervous connections to the situation referred to, the chief phenomena of the seizure being one of the numerous forms of morbid action depending upon 1-pJlex sympatliy,* * The aura epilrplica is also, in many cases, notliiiig else than a manifestation of this kind of sympatliy — the irritation of some internal jiart aflectin;.; somc^ portion of the encephalic organs, tlic all'(( tion licinf; rcllected in the course of some nerve liclonKlng to tlie ciTcliro-sjiiiial system. In cases where this sensation ni.ay ilcjieiKl npon gome change in the part where it originates, the paroxysm i» still more evidently .an expression of reflex syiiijiathy. Till- nailer may refer to mv remarks on tlu' Si//>ip,il/iirs, ill tlie Ciri-t anil seronil cdftions of mv notes to M. Hl- c:iii i;\M)N I'lii/sivlufi,, (pill). iH'j-laiid IH'ji)), where he will fl.uUheiii divi.kd into the direct and reflex — " (//Vrr/ — Diagnosis. 52. VII. Diagnosis. — The intimate relation- subsisting between the diseases of the nervous system just alluded to, might lead to the inference that the diagnosis of epilepsy would be sometimes a matter of diflSculty. But in the regular and un- complicated form of the disease, no difficulty will be experienced. It is only when insensibility precedes the convulsions ; or when there are no convulsions, or merely slight or partial convul- sions ; or when there is violent delirium in the paroxysm ; or when there are convulsions with some degree of consciousness ; or when one half the body is only affected — all which modifica- tions may occasionally present themselves in both the simple and associated forms of the disease ; — that the practitioner can doubt as to the exact nature of the attack. The intermediate seizures, also . between epilepsy and apoplexy (§ 41.), which frequently attack aged persons, and are, as respects the course of the affection, merely a variety of epilepsy without the convulsions — the Leipothiimia of Sauvages — may also be mis- taken, especially for apoplexy, or (or syncope ; but, by attending to the history of the disease, in all its forms, and to the slate of the pulse in the fit, its nature will become apparent. When the par- oxysms exhibit the regular course described above, as they usually do, there can be no difficulty in the diagnosis. 53. (a) If the fit be complicated with apoplexy, it may be mistaken for the simple form of that tnalady ; but convulsions will sufficiently show the mixed nature of the attack. In the inter- mediate «tager coclileare unum minimum, vel duo, in aquK cyatho. (De Haen.) No. 211. B I'ol- Kecent. Lauri-Cerasi .5 vij. ; tcre cum Sacchari Albi 3 xiv ; Pulv. Fol. Aurantiijj-; Syrupi Ross et Syrupi Viola;, aa 3 ij- Fiat Electuarium, cujus capiat coclileare unum medium ante paruxysnii acces- sionera. (Van Mons.) No. 212. B Tinct. .■\mnionia? Compos. 5iij.; Tinct. Castorei, Tinct. Valerianae, aa 5 ijss. ; Mist. Cainjitiora! 3 vij. M. Capiat cocli. ij. vel. iij. magna, adveniente paroxysmo. 67. C. With disorder of the digestive organs. — (a) In the gastric association, it may often be requisite to commence with an emetic, consisting chiefly of the sulphate of zinc. But the frequent repetition of it is very rarely of the least advantage. Altliough the appetite is often ravenous, yet di- gestion is slow and imperfect, and needs the aid of tonics associated with laxatives. The com- pound galbanum pill may be given through the day, conjoined witii equal quantities of inspissated ox-gall and Castile soap, or with the extract of gentian and quinine; and, when the bowels are sluggish, three or four grains of the gall may be taken on alternate nights with an equal quantity of aloes. If the biliary secretion be deficient, a full dose of calomel once a week, followed by a purgative draught (F. 181, 182.), will be requisite. If there be deficient action or fulness of the vascular system, or general asthenia, the mistura ferri composita, or the mistura ferri aromatica (^Dublin Pharmacop.'), may be exhibited ; or the sulphate of iron, or of zinc, or of copper, or of quinine may be prescribed with some tonic or antispasmodic extract, or with the compound galbanum pill. In cases eviiicing great depres- sion of nervous power, with deficient tone of the vascular and muscular systems, these latter re- medies, or the ammonio-sulphate of copper, the extract of nux vomica, or strychnia, or the nitrate of silver, may also be tried, and in similar forms of prescription. It is in this variety that travel- ling, and change of air, of domicile, or of habits, as advised by De Haen, is most likely to be of service, as Dr. Cheyne remarks. In many cases it will be necessary to assist the digestive organs either shortly before, at the time of, or soon after a full meal. With this view, the aloes and myrrh pill, or aloes with mastich, or wiih the addition of capsicum, has been generally recommended. Either of the digestive pills in the Appendix (F. 558. et seq.) may be directed in this manner. The ox-gall with extract of gentian, or of hop, and a grain or two of aloes, is the most beneficial ; a small portion of the aloes acting fully on the bowels, when combined with these bitter tonics, or with the sulphate i)f quinine. These will seldom or never fail of preserving the bowels very freely open ; but, if irritation in the rtctuni be excited by them, they may be relinquished for a time, and injections substituted ; or they may ba prescribed, in a more purgative form, every second or third night. 68. {!>) Cases manifesting /(cputic disorder (§ 34.) should be treated with reference to the nature of that disorder. If symptoms of excited action be present, general or local depletions, an"limonials and cooling diaphoretics, and a seton or issue near the region of the liver, will be necessary. If there be enlargement, chronic obstruction, tor- por, or accumulation of bile in the ducts, deob- strueiit purgatives, especially the preparations of mercury, the taraxacum in large doses, and sub- sequently a course of alteratives (see especially F. 503 — 511.) ; the repeated application of blis- ters over the hypochondrium ; and the dilute nitro-hydrochloric acid, internally or externally, or both, will be productive of more or less benefit. As, in these cases, the functions of both the sto- mach and intestines are also impaired, these means should be conjoined with so much of the treatment directed with reference to disorder of these organs (§ 67. 69.) as the peculiarities of the case may warrant. 69. (c) Epilepsy from loorms or other disorders of the intestines (^ 35.) should at once be treated by the purgative anthelmintics ; for, even where no worms may exist, these medicines frequently remove morbid matters which have accumulated in the prima via in this variety. Having ex- pelled thtse sources of irritation, antispasmodic tonics — especially valerian, assafoetida, camphor, galbanum, the preparations of iron, &c. — will gent^rully be of great service, in preventing both a recurrence of the paroxysms and the regeneration of worms. It is in this variety that an occasional full dose of the oil of turpentine, either with cas- tor oil, or followed, in two or three hours, by this or some other purgative, is most beneficial. A full dose of calomel should al^o sometimes pre- cede the exhibition of the turpentine ; and their action may be further assisted by enemata with equal quantities of these oils. When the symp- toms described towards the conclusion of para- graph 35. are present, purgatives and purgative enemata every second and third day, and tonics or chalybeates, with warm cardiacs and anti- spasmodics, should be prescribed for a considerable period. Frictions of the surface, particularly of the abdomen, loins, and thighs, ought also to be employed daily, occasionally aided by warm em- brocations or liniments. Subsequently, the shower bath may be directed, and steadily persevered in, with such other of the remedies already recom- mended as the circumstances of the case may require. Where associated disorder of ihe spleen, pancreas, or mesenteric glands is present (4 36.), purgatives, deobstruenls, and tonics, variously combined, and the preparations of iodine, with external derivation, are chiefly to be relied upon. tin this variety, the following stomachic purgative.^, taken alternately, at bedtime, will frequently be very serviceable : — No. 213. B Pilul. Hydrarg. (vel Kydrarg. cum Cre!a), Pil. Galbani Comp., E\tr. Oolocyntfi. Conip.,aa gr. iv. ; Fellis Bovini inspissati gr. ij M. Fiant Pilulje iij. pro dosi. No. 214. R Soda; Carbon. 3 j. ; Soda; Sulph. 3ss.— 3j. ; Infusi Senna?, Intusi Calumba;, Aquoe Pimentse, aa 3 V. ; Tinct. Cardamom. Comp. 3j. M. Fjat Haustus. 3 F 2 EPILEPSY — Complicated — Treatment of. 804' 70. D, From disorder of the generative and urinary organs. — The causes {§ 37.) of this va- riety should be ascertained and ivnioved, otherwise medicine will be of little service. The treatment should depend chiefly upon the degree of vascular fulness and action, in connection with the state of nervous power. When it has arisen from sup- pressed catamenia, or from amenorrhoea, without any chlorotic appearance, bloodletting may be safely prescribed and repeated ; and the usual means of restoring this evacuation resorted to. But, when the fits appear before the catamenia are established, the period of puberty having arrived, bloodletting must be more cautiously employed, unless there be evident plethora, when it may be prescribed much more freely ; and it should be aided by such emmenagogues and purg- atives as the habit of body, diathesis, and strength of the patient will warrant. If the disease be attended by signs of irritation of the uterus or ovaria, or by hysterical symptoms (§ 37.), heating and stimulating emmenagogues and antispasmodics should be laid aside, and those of a cooling and sedative kind prescribed, such as nitre, with the carbonate of soda or of potash, with hyoscyamus or the preparations of hop. When the fits follow the subsidence of regular and free uterine evacuations, vascular depletion is veiy seldom Leneficial ; the antispasmodic tonics, as valerian, the compound tincture of valerian, assafoetida, the metallic sulphates, &c., occasional purga- tives, and strict attention to the digestive func- tions, being much more appropriate. If the fits Le connected with dysmenorrhcea, or scanty men- struation, vascular depletions, especially from the feet immersed in warm water, are generally of service, when the habit is full, or the strength unimpaired. After the necessary evacuations, large doses of camphor combined with opium or liyoscyamus, also in large quantities, will gene- rally relieve the more urgent symptoms. This practice has been pursued by me for several years, and has very recently been recommended by Dr. Cheynk. Semicupium, or the iiip-bath, the in- ternal use of the bi-borate of soda, and frictions of the lumbar region, abdomen, hips, and thighs, night and morning, and, after coming out of the l)ath, by a hard flesh-brush, orby flannel, will also be useful adjuvants. If the attacks occur about the commencement of the menstrual period, the ap- plication of a number of leeches near tiie groins, or on the insides of the thighs, shortly before tiie expected time, will often render the attacks more and more slight, and increase the discharge. Se- tons or issues m the latter situation will sometimes have a similar eflect. If tiie catamenia be too abundant, or too frocjuent, or if symptoms of in- anition or asthenia be manifest, the invigorating measures already advised ought not to be neg- lected. The connection of this form of the dis- ease with manustui)ratio, or with great irritability of the sexual organs, should be kept in recol- lection ; and where either the one or the other is detected, or even suspected, a strict mental and moral discipline, with the means recommended above (§ fj2.), ought to be instituted. An oc- casional full dose of turpentine, eitlier conjoined with some otiier purgative, or preceded by a dose of calomel, or followed by a lirisk cathartic, and turpentine enemata, are sometimes of great ser- vice, particularly when the fits j^rocced from suppressed, obstructed, or difficult menstruation." Dr. Priciiatid advices the turpentine, in this state of the disease, to be given in an emulsion, in doses of from half a drachm to two drachms three times a day, or two drachms every night ; but in this mocle of exhibition it is generally nauseated, and is often productive of disagreeable effects, unless it be conjoined with some other purgative. If the fits be connected with disease of the ^lrinary organs (§ 37. 6.) the alkaline car- bonates, with hyoscyanms, and oily purgatives, or other remedies suited to the disorder of these organs, will often prevent or relieve them. 71. V. Treatment of Complicated Epitepsii. — 'i"he complicated states, being evidently, in a large majority of cases, caused by advanced grades of the same pathological conditions as produced at first the simple epileptic paroxysms (§28. 51.), generally demand similar measures to those directed in the cerebral forms, but in a more energetic and persevering manner, especially when occurring early in the disease, and in young or robust persons. — A.thccom- plicaiion with mania or insanity will require, according to the history, the stage, and the exist- ing circumstances, of the case, either copious depletions and evacuations, or an invigorating treatment, conformably with the principles already stated. Ciironic inflammation of the brain or of its membianes should always be dreaded in this unfavourable form of the disease; and wherever the state of the circulation, and the symptoms referable to the head and organs of sense, espe- cially the pulse in the carotids, and the temper- ature of the scalp, evince its existence, general or local bleeding ; the cold affusion on, and sponging, the head ; purgatives ; mercurials with anti- monials, particularly calomel and James's pow- der; external derivation; irritating liniments, setons, or issues, &c., should be employed, ac- cording to the habit of body, and degree of vas- cular action and vital power. When the com- plication is of a maniacal kmd, and vital pov\'er is not much impaired, these means may generally be energetically prescribed ; repeated local de- pletions, the spirits of turpentine in purgative doses, and calomel with antimony pushed so far as to affect the mouth, being often of great service, especially if it occur in young robust persons, or from the suppression or disappearance of some other disorder, or of accustomed evacu- ations, liut when the mental disturbance has slowly supervened, or attended an asthenic state of the disease (§ 27.), or has arisen from causes proluctive of exhaustion or inanition, consisting more or less of the low forms of insanity, or of mental weakness, the treatment advised witii reference to the nervous or asthenic form of cere- bral epile])sy (§61,62.), must be pursued ; ex- ternal derivatives, and free alvine evacuations, being also directed. In this complication, the functions of the heart, digestive canal, liver, and uterine organs, simuld be duly regulated, as al- ready recommended in the sympathetic varieties, whenever they present any manifest disorder. 72. B. The apoplectic complication (§ 40.) must be treated conformably with the principles explained in the article Apopi.ixv. Hut my experience enables me to state that bloodletting can seldom be safely carried so far in it as in true apoplexy ; and tiiat cupping on the nape of the EPILEPSY — Remarks on Rejiedies nECOMMEXDED by AuTiiorts. 805 neck, leeches behind the ears and to the temples, purgatives frequently repeated, brisk catl)iirtic enemata, and external derivatives, are chiefly to be confided in. After recovery from the seizure, the measures appropriate to the habit of body and other circumstances of the case, as described with reference to the sanguineous form of cerebral epilepsy (§ 63.), should be resorted to. The intermediate slates between apoplexy and epi- lepsy (§ 41.) will require local depletion, alvme evacuations, and restorative medicines, according to the evidence furnished of vascular fulness, or of vital and nervous depression. In the intervals, stomachic purgatives, and antispasmodic tonics, with regulated diet, change of air, &c., will gene- rally be necessary. When these states are con- nected with disorder of the uterine functions, the measures directed in the uterine form of epilepsy should be prescribed. 73. C. The cvmplication ^lith paralysis (§42.) will seldom be treated with any success, unless the palsy be partial, and pass off soon after the fit; when we may infer that it has been owing to the congestion attending the convulsion. When the patient is young, of a full habit, or of unim- paired powers, bloodletting, general or local, or re- petitions of the latter, will be requisite; aided by purgatives, setons, and the other means advised in the apoplectic complication. But in persons presenting evidence of asthenia or inanition, the preparations of iodine, especially the iodide of po- tassium and ioduret of iron; the extract of (H(.r the Varieties and Circumstances in which titev are most appropriate. — A. Bloodletting, general and local, has been recommended by most writers ; but the extent to which it may be carried has rarely been understood, and never attempted to be assigned. At the present day, it is more fre- quently carried too far than neglected when it ought to be directed. Of modern writers. Dr. Ci'LLEN and Dr. Bright have estimated it in a manner which a])proaches the nearest to the results of my own experience. If carried too far, or performed in such a manner as to induce full syncope, it is apt to bring on a paroxysm; and if it be not followed by purgatives, restricted diet, and regular exercise, it will only increase the tendency to plethora. The circumstances in which it should be prescribed, as well as those in which it ought not to be resoited to, have been explicitly stated ; but the extent to which it should be carried, the particular situation and manner of performing it, and the repetitions of it, can be regulated only by the existing circumstances of the case* — by the habit of body, the state of the pulse, the modes of living, the strength of the patient, and the causes producing and tending to perpetuate the malady. Dr. Hebebden ex- presses himself strongly against bloodletting; but the class of persons amongst whom he practised, and the inhabitants of large towns subject to this disease, certainly are not so much bene- fited by this evacuation as those otherwise circum- stanced; and yet, even in them, very small and vomica with aloes, or the aloes and myrrh pill, or often-repeated local depletion is frequently of great struchnia, in any of the forms given in the Appen dix (F. 542. 565. 907.); and the metallic sul- phates, with the antispasmodic tonics, especially valerian, serpentaria, assafalida, camphor, am- monia, &c., will be most beneficial. But even in these cases, purgatives should not be neglected ; such as are of a warm stomachic kind being se- lected, and exhibited regularly every second or service. 76. B. Pwgatives, and purgative enemata, have nearly all writers in their favour ; and 1 be- lieve that there is no class of medicines which is less capable of abuse in this disease than they. But the success of the practitioner will depend chiefly upon the selection and combination of them appropriately to the peculiarities of the case; and third day, so as fully to evacuate the bowels. In 1 upon his firmness in per.-isting in them, when they "' -'•-'■ - •-■ ' ■ ' are clearly indicated, although little apparent benefit at first results from them. The more drastic purgatives, as elaterium, croton oil, and the hellebores, have been presciibed ; and are most suitable in the plethoric states, and apoplectic, paralytic, and maniacal complications of the dis- ease. The foetid, black, and even the white hellebores have been recommended from Hippo- crates to the present day ; and are often very serviceable in the verminous and uterine varieties, and in the maniacal complication, in which they have been prescribed byCELSvs, Aret.iits, Alex- ander Trallianus, Schuez, Starke, Smyth, G REDING, and Prichard. Pliny states that the tribune Drusus was cured of epilepsy by the black hellebore. The powder of the root, or the extract, may be given in doses of ten grains, in- creased to thirty ; or the decoction of the leaves or root may be employed. In the apoplectic and paralytic complications, the extract or decoction are advantageously given in enemata. The oil of turpentine, especially conjoined with castor oil. the n.ore sthenic states of this variety, complete recovery from the paralytic symptoms is some- times witnessed after free evacuations ; but the patient is not secure from a return of the paroxysm in some one of its most dangerous states of com- plication, although his health may appear quite re-established. In a case to which I was lately called, these symptoms disappeared after a full bleeding from the arm, copious purging, &c. ; and the patient was able to pursue his occupation, and expressed himself cjuite well : but in a few days he was seized with another fit, of which he died in a few minutes. The bloodletting which I directed in this case was laige; but the habit of the patient, the state of the pulse, and of the blood drawn, and the effect produced by it, indi- cated the propriety of having recourse to it in a decided manner. 74. IJ. Of the other complications (§ 43.) of this malady, little further need be adduced. They retjuire more especially a persevering use of sto- machic and dtiobstrueiit purgatives, with anlit spasmodics, external derivatives, and due attention in order to insure its cathartic operation, is a very to diet and regimen, varied and associated with efficacious medicine, exhibited either tiy the mouth other means according to the particular nature of , or in clysters. It is, in the latter mode of admi- the complication, or sympathetic disorder, and the ; nistration, the safest and most active of antispas- habit of body and other circumstances of the case. J modics that can be given during the paroxysm • 75. vi. Remarks on the Remedies and Means of j and, when presciibed in energetic doses, and suil- Cure recommended by Aulhora, tvith reference tn I ably combined, it produces a very remarkable 3F 3 806 EPILEPSY derivative action from the head, whilst it fully evacuates the intestinal canal, and stimulates the abdominal organs. Hence it is especially ser- viceable in the enteric, verminous, uterine, apo- plectic, maniacal, and paralytic states of the dis- ease. It has been employed successfully by Latham, Young {Trans. of Coll. of Phys. vol. v. p. 52.), Percival (Edin. Med. and Surg. Journ. vol. ix. p. 271.), LiTHGOw (i;;id. vol. xi. p. 301.) PniCHARD, and by myself (see Med. and Phys. Journ. for May and July, 1821.) The an- cients, as well as the moderns, have depended also upon scammony, colocynth, and aloes ; but ofthe.se, as well as of calomel, it is unnecessary to make further mention. Ur. IIebilRden was averse from the use of purgatives, excepting in the enteric variety, owing, probably, to the reason assigned above (§ 75.); and, certainly, in the more asthenic states of the disease, and when the circulating fluids are deficient in quantity and qizality, if trusted to mainly, they will be produc- tive of mischief rather than benefit. In such cases, they should be given only on alternate -^lays, or every thiid day, — should be of a warm and stomacliic kind, or combined with tonics, and associated with the means recommended above (§ G7.). Thom, J. Frank, Kinneir, Mangold, &c., prefer rhubarb, the neutral salts, and the bi-turtrate of potash. This last, given in large doses, is most serviceable, when persisted in, if the vascular system be plethoric, and the biliary secretion in a morbid state. Galen and many re- cent writers have preferred aloes. In some one or other of its preparations and combinations, it is the most generally appropriate purgative that can be prescribed. With stomachic, chalybeate, and car- diac medicines, it is suitable in tlie asthenic cases; and combined with ox-gall, or with sulphate of quinine, or with bitter extracts, &c., it will act with very remarkable energy, and without depressing vital power, — a circumstance of peculiar import- ance in the treatment of epilepsy. 77. C. Emetics have been recommended by Aret-eus, ALtxAxuER of Tralles, Zacutus Lxj- ciTANUs, Ettmuller, Roncalli, Werlhoff, Lettsom, J. Clarke, and others. Van Svvieten and J. Prank assign, with much propriety, the circumstances in which they should be given, in prescribing them only when the fits appear to proceed from disorder of, or the irritation of mor- biil oi' noxious matters in, the stomach. De Haen directs them when the paroxysm is preceded by nausea ; Tissot, when a sense of weight, or a ravenous appetite, is felt; and RicnxER, shortly before the expected return of the fit. RIayer is favourable to the use of them, particularly of ipecacuanha, exhibited in doses short of producing full vomiting, and INIarhvat prefers those con- taining the sulphate if copper. Heberdkn con- siders them injurious; and Frank remarks, tiiat he has never known an instance of a cure having been effected by them, although he believes that they have cleared the way for the action of other medicines. I agree with Meihom in restricting them to the stomachic form of the disease, and in considering that they may be injurious in most other states, especially when there is much vas- cular fulness or cerebral congestion. 78. D. iJi(//)//07e(ies are much praised by TisbOT and l.KNTiN, who consider it of much importance to promote; a free and equable perspiration, which Remarks on Remedies recommended by Authors. is seldom observed in epileptics. James's powder' as prescribed above, or the other preparations of antimony, may be selected, particularly in ple- thoric persons ; or the vinicm ipecacuanhie may be given with liquor ammonia acetatis, and the spi- ritus (Blheris nitrici. These are, however, most serviceable after other evacuations have been em- ployed, and when the skin is dry ; and then their operation may be aided by the tepid bath, as ad- vised by TissoT and Marcard. Dr. Abercrom- BiE, according to Dr. Cooke, has seen benefit from Wiepotassio-tartrate oj untimoni), given four times a day, in such doses as the stomach could bear. I had recently a patient under my care, who expe- rienced a very severe attack whilst he was under the influence of this medicine. 79. E, Emmenagogues are required in those states of the uterine form of the disease that are con- nected with delayed, suppressed, or difficult men- struation. The oil of turpentine is one of the most efficient of this class of medicines that can be given in such cases, as fully shown by Dr. Prichard, more especially after bloodletting from the feet, or leeches to the groins and tops of the thighs, and the hip-bath, or semicupium, have been prescribed. The bi-borate of soda is also sometnnes of service, either given alone, in doses of ten or fifteen grains, or in conjunction with other emmenagogues and antispasmodics, — more especially with cauiphor, or valerian, castor, an-.monia, galbanum, assafoetida,' aloes, &c. (F. 268. 368.). Rut, as M. Maisonneuve justly remarks, the restoration of the uterine functions to their healthy state is not always fol- lowed by a cure or even alleviation of the disease. When this is the case, the treatment must pro- ceed according to the principles already explained. Marriage has occasionally removed the seizures, especially in the female, as remarked by Stahl (Jje Dispos. Hered.ad Var. Morh. p. 48,), Hoff- mann {Ue L';j(7ep. 0pp. vol. iii. obs. 9. p. 20.), Krijnitz (De Iilalrimonio ]\Iultor. Morb. Uemedio. Franc. 1749.), ]\1oreau (]\Um. de la Soc. Med. d'' Emulation, t. ii. p. 189. — in the male), and Prichard (Op. cit.), A young lady, whom I long attended on account of slight epileptic seizures, connected with irregularity of the uterine functions and of the bowels, experienced, after marriage, a gradual amendment for some time ; but had a very severe attack of puerperal mania after her first child. She is now in good health. 80. F, Tonics and antispasmodics. — In the asthenic states of the disease, and in the other varieties, after bloodletting and the foregoing evacuations have been actively prescribed, re- medies possessing a tonic and antispasmodic action aie chiefly to be depended upon. Rut these should be selected with reference to the results of experience as to their operation, to the form of the disease, and to the particular fea- tures of the case, especially the states of sen- sibility and irritability, and of vascular fulness and action, generally and locally. Rut even when such remedies are most necessary, purga- tives should be so conjoined, or so alternated, with them as to j)rcserve a regular action of the bowels, or to occasion a brisker operation once or twice a week, according to the strength of the patient. In many cases, also, it will be requisite to adniiiiislcr tonics, and, still more frequently, antispasmodics, even conlempoiuneou^ly with EPILEPSY local depletions, more especially wlicn general or local plethora is associated with defective power and increased susceptibility. 81. a. OC mineral tonics and antispiismndics, the most active are the metallic sulphates and nitrates. — a. The preparations of copper, particularly the cupri ammonio-sulphiis, or the simple sitlphus cupri, have been recommended by Aret/eus, EOERHAAVE, Van SwIETEN, WLlZENBnEYEIt, Duncan, Baumes, Tiiilemus, Thei'ssink, I\Ii- CHAELis, Cullen, Stone, Greding, Bi.and, Vogel, VVillan, Bathe, and Reil ; and em- ployed by them successfully in many cases. Urs. Home, Hook, and Magennis, however, state that they have found it to fail in most instances. Dr. F. Hawkins expresses himself much in favour of the sulphate, in doses of a fourth of a grain, conjoined with sulphate of quinine, or cinchona. In the asthenic states, and in the more plethoric forms, after depletions and evacuations have been prescribed, this combination, and the amnioniated preparation, frecjuently produce very great bene- fit, and sometimes entirely cure the disease. Dr. Urban (Hufeland, Journ. d. Pr. Heilk. 1827.) prefers the animoniacal sulphate in the simpler states of the affection ; and prescribes eight grains of it in forty-eight pills, of which three are to be taken night and morning, increasing the dose by one pill each second day. 82. $. The sulphate and oxide of zinc have been prescribed by IIart, Martini, Hartmann, Crell, Aasheim, Bell, Percival, Guthrie, Haygarth, Rush, Arnaud, Richter, and Ra- nge. OsiANDER directs the zinc with valerian and orange leaves. The oxide has been preferred by most of these writers; and Dr. F. Hawkins advises it to be given with extract of conium. I have combined it advantageously with the am- moniated copper (F. 459. 593.), with camphor (F. 615.), and with valerian (F. 582. 665.) ; but I believe that the sulpliate is more efficacious, especially when conjoined with camphor, musk, or other antispasmodics (F. 584 — 587.). Upon the whole, zinc appears to be less useful than copper in this disease, although 1 do not rank it so low as Dr. Cullen and Dr. Cooke, have done, who employed chiefly the oxide, which is fre- quently inert, unless it be exhibited in large doses. 83. y. The nitrate of silver seems, from a pas- sage in Staiii. (^Theoria Med. Vera, p. 1019.), to have been given in this disease as the principal ingredient of a secret medicine much employed in some parts of Austria at the time when he wrote; having been probably adopted from the preparation described by Angelis Sala, v/hich consisted of a solution of the salt in wine ; and which he directed in so large doses as to act as a cathartic. Schroeder, however, had already recommended it in epilepsy and other diseases of the head. Both Sala and GEOFrROV prescribed it as a purgative in dropsies ; but; although ScROEDER and Boerhaave had mentioned it as a cure for epilepsy, it was scarcely used until Dr. Wilson noticed (Duncan's Annals of Med. vol. ii. p. 405.) its good effects. It was afterwards adopted by Dr. Sims, Dr. Cappe, Dr. Powell, and many others, who published proofs of its efficacy. Subsequently, Dr. Baillie, Dr. Ro- get. Dr. R. Harrison, Dr. J. Johnson, Dr. Cooke, Dr. Semenitni, I\I. Valeniin, Dr. Heisi, Remarks on Remedies recommended by Authors. 807 and others, have prescribed this medicine with advantage ; and the more numerous observations of M. Lombard have also proved its success in a very large proportion of cases. The discoloura- tion of the skin by it, noticed by Albers, Roget, J. Johnson, Vetch, and others, is so frequent, and so permanent when it does occur, as to be a serious objection to it. In some of the cases in which this effect was produced, the disease was not removed ; but in others the recovery was complete. It does not seem to depend so mucli upon the largeness of the dose, as upon the long continuance of its use. Sementini (Giornale di Fisica, t. xi. p. 355.) recommends this salt to be triturated with some vegetable extract, and given in tiie form of pill ; in this state the dose may be gradually increased to six or eight grains, or even more, in the day. I have prescribed it thus in several cases of epilepsy, and other diseases; and frequently with great benefit. It should not be continued very long, without intermitting it for a while. An eruption of minute pustules over the surface of the body, sometimes is proiluced by it, as first lemarked by Sementini, and observed by myself; but this should be viewed as a favourable circum- stance. The nitrate of silver appears to me most beneficial in the asthenic states of the disease ; or after evacuations have been practised in the other forms; also in the stomachic and enteric varieties, and in the complica'ion with paralysis. I have generally combined it with hyoscyamus, or camphor (F. 473.), extract of belladonna (F. 472.), musk, opium (F. 475.), or gentian (F. 474.). The following is the mode of admin- istering it adopted by Heim, an eminent physician in Berlin : — No. 215. R Argenti NitratisinPuIv. gr.xij. ; Opii Puri gr.vj.; Extr. Conii IVtaculati 5ij.; Extr. Glycyrrh 5j. Tere bene, et divide in Pilulas ponderis granorum duo- rum. Blane et vespere iij. — v. pil. capiat. 84. S'. The preparations of iron, especially the sulphate, and the tincture of the sesqui-chloride, are often beneficial in the asthenic forms of the disease, or when depletions have been carried too far, and morbid matters have been evacuated. They have been much praised by Tissot, and by Quarin, who combined them with hellebore. I have directed them with valerian (F. 40.); with ex- tract of hop ; or with ox-gall, aloes, and myrrh, — £. Arsoiic, particularly Fowler's solution, has been employed by Pearson, Brugnatelli, Prichard, and A. T. Thomson. It requires much caution ; as too large doses, or a too pro- tracted use of it, may produce injurious effects, especially on the heart and arterial system. — ^. The trisnitrate of bismuth has been tried by me in two or three cases, both alone, and with other tonics and antispasmodics, the bowels hav- ing been kept freely open ; and has appeared quite as beneficial as the preparations of zinc. — n. The chloride of barium has been recommended by Hufeland and Gebel (Hufeland, Journ. d. Pr. Heilk. h. vii. st. 3. p. 177.), especially when the disease is connected with the scrofulous dia- thesis ; the aqua calcis, by Tissot ; and the snl- jihuric acid, by Ruland (Curat Empir, cent. vi. obs. 96.), Rosenberg (Rosa Jatrica, cap. 30.), HiHsciiEL, Feuerstein, and Hildebuand. 'i"he nitro-hiidrochloric acids, in equal proportion, have been prescribed by me in tonic and astringent infu-ion.s, in only one instance, connected v^ith ■ 3 F 4 808 EPILEPSY — Remarks on Remedies recommekded by Authors. torpid function of the liver, and with some bene- fit ; but the ultimate result is unknown to me. 85. b. Numerous vegetable tonics have been employed, in circumstances similar to those in which the foregoing are prescribed. — a. Cinchona and its preparations have been preferred, espe- cially when the paroxysms were periodic, by Bang (Acta Ueg. Soc. Med. Hann. vol. i. p. 106.), BuciiHAVE {Act. Med. Soc. Ha/n. vol. i. p. 224.), Frank, Chkvalier, Comparetti (Oc- cursus Medici, 'i^'c. p. 303.), De Haen, Cullen, Home {Clinical Experiments, &;c. p. 194.), Pinel, &c. ; and by Tode {Med. Chirurg. Bihliolh. b.ii. p. 160.), with the ammoniacal salts. — (3. Orange leaves, and the bark of the tree, have been praised by Tnii.ENius {Med. Chir. Bemerk. p. 129.), IIannes, Fischer, Gesner {Beobacht. h. i. No. 19.), De Haen, IIenning, Tissot, Locher {Observ. Pract. p. 44. 47.), Oberteuffer, Hlte- LAND, &c. Quarin {Animadvers. &;c, p. 23.), however, and Home, consider them inert. — ■y. Tlie misletoe, or viscum album, was formerly much employed against tliis disease ; and is evi- dently a medicine of great power. But the misletoe of the oak is procured with difficulty. It has been prescribed in epilepsy, probably from the time of the Druids. Gerarde {Herbal, p. 1351.) mentions it as a popular remedy. Par- kinson * {The Theatre of Plants, p. 1394.) is much more copious respecting it ; and Colbatcii, in his treatise on its virtues, thinks it almost spe- cific. The evidence of Borelli, Cole, Boer- iiaave, Van Swieten, Buchwald, Andree, Haller, De Haen, Quarin, and others, is also very much in favour of it. Dr. Frazer states, that out of eleven cases which he treated with it in the years 1802, 1803, and 1804, nine were completely cured. He prescribed it in powder, in the dose of from two scruples to two drachms, twice a day, in camphorated emulsions. Dr. Fo- TiiERGiLL, Dr. G. i'liOMPsoN, INlr. Haynes, and Dr. Willan, have also employed it successfully. On the other hand, Tissot, Culi.en, Hojie, Good, and Cooke place no confidence in it ; and at the present day it is almost wholly, and, per- haps, undeservedly, neglected, unless by empi- rics, whose success in this, as in other diseases, often depends upon the adoption of a once popu- lar and efficacious remedy which had fallen into undeserved disuse. — J'. Valerian is mentioned by DioscoRiDEs and Arftkus as a remedy in epilepsy. F^arius Calumna cured himself and others bv it (Phytobasanos, Nap. 1592. 4to. p. 97.). Willis {De Morb. Convul. c. 24.), Panarolli (Jatralogism. Pentecost, i. obs. 33.), Cannengifsser, Marcard, Brisbane, Lin- naeus, Quarin, Haller, Fotiiergill, Sprem- GEL, Unzer, and many others, have insisted on its efficacy when exhibited in sufficiently large • He states — " The Missellto it selfe of the Oke is the best (or of the Chesnuttree.as Matthiolus saith to boas good), made into pouther, .ind given in drlnli. Calbanum and myrrh are useful chiefly as adjuncts in these varieties ; but they are less efficacious singly than assafcEtida and the other substances just named. — S'. Camphor may be employed in every form of the disease, but in very different doses and combinations : in the plethoric s'ates, in small quantity with diaphoretics and refrigerants (F.24.); in the astlicnic, enteric, and uterine varieties, in full doses with Ionics and other antispasmodics (F.-35. 615.). LociiER (Observ. Pract. No. 40.) prescribed it with bark : and Tlssot, Pinfl, and most modern writers have employed it, either as the chief agent, or as an adjuvant of other sub- stances. When an immediate effect is required, it should bo given in the form of draught or mix- ture, with the preparations of ammonia or of the EPILEPSY — PvFsiAnKS on Remedifs eecomjiended ny Author? 809 aethers (F. 186.212. 423. 845.). It often shortens the fit, or prevents it altogether, when exhibited in enemuta stiortly before tlie usual period of ac- cession, as in Formulre 130. 135 — 138. 151. 87. c. Of a)iimal substances, castor, mask, and ox-galt are most deserving of notice. — a. Castor is recommended by Aret^eus, Celsus, Pliny, Serapion (apud Ccel. Aurel. p. 352.), K. Dicby {Experimen. Med. p. 332.), ]\Ioor ( Pathol. Cerebri, p. 211.), Thouvenel (Sur les Vertus des Subst. Anim. Medicain. p. 3o7 .), TissoT,and Fotheiigill. When unadulterated, and given in full or large doses, it is often of much service ; especially in the asthenic, dyspeptic, and uterine varieties; and in the combinations advised in respect of assafoetida and camphor, with which (as well as valerian and musk) it may be conjoined (F. 480. 497. 905.). — B. Musk is also beneficial in these varieties, or in the other forms, after evacuations have been prescribed, and in similar combinations to those mentioned with reference to the preceding sub- stance. It is favourably mentioned by Feuerstein, Van Swieten, Quarin, Culi.en, Ackermann, and others. Hannes made a full ami s iccessful trial of its efficacy on his own son (See A'^ova Acta Nat. Curios, vol. v. p. 244.). It shouh!, unless intended merely as an adjuvant of other means, be given in much larger doses than usually di- rected. It may be conjoined with camphor, sul- phate of zinc, &c. — y. The bile of various animals, particularly of the ox, bear, and dog, has been noticed by Bartholin, Unzer, Quarin, and others. Of inspissated ox gall I have had some experience in this complaint ; but have usually directed it in combination chiefly with assafoetida, galbanum, myrrh, aloes, &c. (F. 558. et seq.) It is of much service in the states just particular- ised, and after depletions have been carried far, or to an injurious extent. In a case of this latter description, I am now employing it with very marked advantage. 88. d. Cold or salt water bathing has been advised by Celsus, C/elius Aurelianus, Flover, Eextin, Tissot, and Hufeland ; but it requires caution, and attention to its effects. In young persons and delicate females, who have not been accustomed to a plunge bath, the fear or shock of immersion may bring on the seizure : indeed, Wiekard {Observ. Med. Franc. 1775.) and ToDE (Med. Chir. Bibl. b. i. p. 117.) adduce in- stances of such an occurrence. The shower-bath, used daily, commencing with tepid water, and gradually reducing the temperature, in cases where the shock may be dreaded, is of much less equivocal benefit ; and is, in all the varieties, but in the simple or cerebral forms especially, a very excellent remedy. When it cannot be employed, the patient should daily efluse water from a large sponge over the whole head and occiput. 89. G. Numerous substances evincing more of stimulating, than of tonic and antispasmodic, properties have been prescribed, with occasional success; but, in general, in combination with one another, or with medicines producing- an astringenl^ or tonic efl^ect. — a. — a. The oil o( hartshorn, or Dippel's animal oil, was very generally used, both internally and externally, especially during the last century, owing to the recommendations chiefly of Dippei. (Disqiiisit. de Vit(c Animalis ]\lor/io et Med. &:c. p. 89.), Alberti (De Med. in Motlhns Nat. Exacerbatis. Halae, 1718.), Vatfr (De Specijicor. Epilep. Sigillatiyn Olei Animal. Vir- tutibus. Vitel. 1725.), Mauchart (De Oleo Animal. Dippeltii. Frib. 1745.), Juch,Kortum, Bang, Thouvenel, Cullen, jNIoranu, and Por- tal. Feuerstein believes that, when it is pure, and not altered by the action of the air, it is often beneficial. Ackermann considers it possessed of no small efficacy in the asthenic forms of the disease, particularly those connected with anemia, and languor; but hurtful in the irritable and ple- thoric states. Quarin advises it in the uterine variety. Tissot, however, thinks it possesses but little power. — B. Cajuput oil was prescribed with benefit by Goetz (in Commerc. Lit. Noric. 1731, p. 5.), in doses of from two to ten drops on sugar ; and by Werlhof (Oper. Med. p. 711.), with cinchona. — y. The oiV and other preparations of amber have been found sometimes useful by Ri- VERius (Pia.r. Med. p. 32.), Beattie (De Cogno- scend. et Cvr. Morb. S^c. Halaj, 1780.), Cullen (Mat. Medica, vol. ii. p. 361.), and others. The oils of hartshorn, cajuput, valerian, and amber, are serviceable chiefly in the simply nervous and as- thenic states of the disease; and are useful adju- vants of other medicines, and are often beneficially conjoined with narcotics (§97.). Besides these, other oils, both simple and medicated, have been prescribed ; but they hardly deserve enumeration. 90. b. Phosphorus was, I believe, used for epilepsy first by Kramer (in Commerc. Lit. Noric. 1733, p. 137.) ; and more, recently by Feuerstein, Quarin, and others. Weikard, Autenrieth, and Hufeland justly view it as a doubtful and dangerous remedy. Haartmann (De Noxio Phospb. in Med. Usu, &jc. Aboee, 1773.) gave it in four cases without benefit. — /3, Caiitharides has been tried internally, by AIer- curialis (De Morb. Pueror. 1. i. c. 3.), Zacutus LusiTANus (Prax. Admirab. 1. i. obs. 35.), Stoc- KAH (De Usn Canth. Interna. Goet. 1784. p. 34.), and D v. 5. 3 on^so^ (On Derangements of the Liver, &;c. p. 105.), with occasionafadvan- tage. Its external use is, however, more com- mon, if not more beneficial, in this complaint. 91. c. Guaiacum, either in decoction or sub- stance, has been employed by Vesalius ( Haller's Bibl. Med. Pract. vol. ii. p. 32.), Willis (De Morb. Convuls. p. 460.), Sennert (Prax. Med. I. i. c. 31.), Mercurialis (liespons. et Consult. I. ii. c. 3.), FoRESTUS (Observ. Med. 1. x. obs. 58. 63.), F. Hoffmann (J^led. Rat. Syst. t. iv. p. iii. c. i. p. 21.), and others, who considered it pos- sessed of much efficacy in this complaint, espe- cially if connected with a syphilitic taint ; but it has been neglected by more modern writers. — y. The flowers of the Cardamine pratensis were found beneficial by Berger and Nagel (De Usu Med. Card. Prat. &ic. Franc. 1793. p. 13,) ; but Baker (Trans, of Coll. of Phys. vol. i. p. 443.), Lysons (Pract. Essai/s, S\c.~p. 173.), and Gredino, state it to be inefficacious. The saturated infusion of the flowers and leaves pro- duced a copious and foetid perspiration in the experiments made with it by Berger. (De Itemed. Spec, in Ep. S^c. Fianc. 1795. p. 11.)- ^. The Arnica montaiia has likewise been noticed by Stoerck, and the Serpentaria, by Gruelmann when the attack has been occasioned by fright. 92. d. The extract of tmx vomica was praised by SiDREN (in Acta Med. Suec. t. i. Upsala?, 1783, p. 367.), Rese (De Nuce Vomica. Jena?, 1788. BIO EPILEPSY p. 20.). HuFELAND (Journ. d. Pr. Arsneyh. b. i. p. 109.), and Vieweo (in Annal. der Heilkunst, Mai, 1811. p. 426.); and its active principle, strx^chnia, was prescribed by Dr. Brofferio (Revue Med. t. iv. 1825, p. 488.) in this disease. I have tried the former preparation in two or three cases, and conjoined it with aloes (F, 541, 542. 907.). It is a powerful remedy in the asthenic forms of the disease, and in the paralytic compli- cation, connected with inanition, or consequent upon excessive evacuations. When the fits follow tlie disappearance of the menstrual discharge, it is of especial service. Lobenstein-Loeel recom- mends the tinclure of nux vomica, beginning with sixteen drops every three hours, and gradually increasing the dose to thirty or even to forty. This medicine is most injurious in the plethoric, inflam- matory, and irritaijje states ; and, if carried too far, is liable to excite inflammation of the membranes of the brain and spinal cord. These remarks apply equally to strychnia, which should be given in very small doses, and with strict attention to its eft'eets (F.'565.). I know of an instance of its having caused an attack of the disease in a person who had not had it before. The Strycknos Sancti lo-natii, or the Igriatia amara, has been prescribed by Stein and Valentin. It operates similarly to the foregoing, and requires equal caution in its use. The secret remedy for epilepsy employed by Witz, father and son, is said by Dr. Haase to have con- sisted chiefly of the powder of this bean. It was found most useful against the fits following ex- cessive fear ; and was given in doses of two or three grains twice or thrice daily (Bullet, des Sc, Med. de Ferussac, t. xi. p. 74.). 93. e. The ■pttony (Fcconia officinalis) entered, in conjunction with various vegetable antispas- modics and tonics, into many of the empirical remedies so much employed in epilepsy. The dried root, seeds, and flowers, and the recent ex- pressed juice of the root, were chiefly used ; and, with other writers, old Parkinson (Theatre of Plaiits, p. 1382.) directs the male plant to be selected. The root was formerly hung around the neck as a charm against a return of the fits. Although praised by Berger, Forestus, Willis, RiVERius, Apvni.{De Epilepsia. Alt.1713. p. 39.), ScHACHT (Iiistit. Med. Pract. p. 64.), Murray (Appar. Medicam. t. iii. p. 40.), De Haen (Rat. Med. par. vi. p. 317.), and Vogel (Hist. Mat. Med. p. 206.), no confidence is placed in it by Sylvius (Op. Med. p. 427.), Herrmann (Cttnos. Mat. Merf. Argen. 1726. p. 176.). Moor (Path. Cereh. &c.), IIai.i.f.r, and Tissot. The im- perfect trials made of it by Home (Clin. Experim. 2d ed. p. 209.) showed it was not without efi^ect, This contradictory evidence is easily explained by the empirical mode of prescribing it ; like the other medicines classed under the present head, it being appropriate only in the asthenic cases, and in the uterine variety after evacuations have been practised. — The Scdurn acre, or wall-pepper, was used in Germany, as a popular anti-epileptic, before it was noticed as such by medical writers. L/iuiiENDKii, of Saxony, first prescribed it, and gave from ten to fifteen grains of the dried plant for a dose. Isciiorn (IIufelam), Journ. d. Pr. Jleillt. h. xiii. p. 167.) afterwards resorted to it with success. Petfus (liihlioth. Med. t. vii. p. IHi.) tried it with five patients, one of whom was cured, and the others relieved. M. Fauverce Remarks on Remedies recommended by Authors. (Journ. Gener. de Med. t. xcvii. p. 152.) em- ployed it in four cases, three of which were cured. In these, bleeding was premised and vegetable diet directed : and very recently, M. Godier (Ibid. t. cviii. p. 141.) has given it in three cases, but with benefit in two only. 94. /. Rue (Rata graveolens), and its distilled water, decoction, infusion, expressed juice, and oil, were formerly much employed in epilepsy, especially by Forestus (De Capitis et Ventris Mortis. 1590, 8vo.), Mayerne (Prax. Med. p. 20.), Moor, Riedlin (Lin. Med. Ann. iv. 1698, obs. 25.), and Stenzel (De Rata Medicam. et Venen. Viteb. 1735). Pliny (I. xx. cap. 13.) mentions the use of the decoction before the ex- pected return of the paroxysm ; and IJoerhaave (Consult. Med. Goet. 1752, p. 28.) frequently confided in the distilled water and infusion. It, as well as the sedum acre, should be prescribed only in those cases to which I have restricted the pa;ony. — The extract, infusion, and powder of the flowers of the Narcissus pseudo-narcissus have been recommended by Lauremberg (Appar. Plant. 1. i. cap. 18.), and Du Fresno y (Des Propriet. du Narcisse de Pres. Paris, 1788), in such doses as will not irritate the stomach. The Viola odor- ata, and V. tricolor, also, have been noticed by DioscoRiDES, Pliny, Matthioli, and Haase, as anti-epileptic medicines. 95. g. The frequent dependence of epilepsy on the scrofulous taint, or upon morbid structure, induced me several years since to employ iodine* in the treatment of it ; but the utmost discrimi- nation and caution are required in the use of this substance; for it maybe injurious in the inflam- matory and plethoric states of the complaint, or if given in too large doses, or even for too long a period. It is indicated chiefly in the asthenic conditions, and in the paralytic complication, if independent of inflammatory action. The iodide of potassium, or the iodurctted solution of it, or the iodide if iron, may he preferred. But the iodides are often uncertain as to the relative proportion of the metal and iodine. The iodide of mercury, although a promising combination in this disorder, was prescribed by Dr. Roots until the gums were affected, but without permanent relief. — I have found the ioduretted solution of the iodide of potas- sium most serviceable, given in very small doses three or four times a day : blue pill, and the aloes and myrrh pill, or any other gentle stomachic aperient, having been taken at bedtime, A patient at present under my care is pursuing this treat- ment with great benefit. 96. /(. Petroleum, tninernl oils, and naphtha, especially the former, have been recommended by DioscoRiDts (I. i. cap. 85.), Wedel (De Epilepsia. .Tenas, 1676.), and Gmelin (Appar. Medicam. vol. i. p. 185.). Ramazzini (Opera, p. 320.) has published a curious tract, written about the middle of the fifteenth century by Francis Ariosto, in which petroleum is said to have been employed successfully against this disease." — Theffitherial preparation from caoutchouc seems deserving of a trial in the sim))le or nerv- ous states of the disease. — Of the ])reparations of ammonia and of tether, little further need be * Ihml, a carpenter, aged i'orty, for many years subject to epilepsy, was treated with l)lue an. 20.) justly remarks, it may induce a state of apoplectic torpor, when given during the paroxysm. The preparations of 7norpliia, especially the acetate, in the liquor ammonias acetatis and camphor julep, or with an aromatic spirit, are frequently preferable to the pure opium, and less likely to aflect the head in- juriously. I have found the following draught to agree even with those who could not take opium in any of the more usual forms : — No. 210.1^ Morphiffi Acetatis gr. J ; solve in Liq. Am- moniae Acetatis 3jss.,et addeWist. Camphoras (vel Aq. Distillata;) 3 j. ; Spirit. Caryoph. 5j. ; Olei Anisi Uliij. M.- Fiat Haustus. 98. b. Stramoninm, principally its extract, has been much employed in epilepsy by Continental writers. Stoerck (Liliellits, quo dentonstralur Stramonium, d;c. Vindob. 1762), who first pre- scribed it in this complaint, gave from half a grain to a grain of the extract, three, four, or six times a day, for several weeks or months. It af- terwards was approved of by AVahlin, Spa- LOWSKY, DuRANDE (Gardane's Gazette de Sante, 1773 et 1774, p. 143.), Sidren (De Usu Stramonii in Convuts. Ups. 1772), Razouz (De Cicuta, Stramonio, &;c. Neni. 1780, 8vo.), and others. Odhelius (Coram. Acad. Suec. Stuck, vol. xxvii. p. 277.) prescribed it in fourteen cases of epilepsy and convulsions, eight of which, he says, were cured, and live relieved. G reding (Sammtl. i'c/i)'j7t, th. i. p. r02.), however, states, that of twenty-eight epileptics, it cured only two, per- manently relieved tour, and temporarily relieved eleven. He remarks, that aperients, tonics, and antispasmodics should also be exhibited. Arne- mann (Pract. Arzneimitiellehre, th. i. p. 279.) advises it to be given in the form of a pill, with camphor and bitter extracts. 99. c. Hynscyamus, as well as stramonium, is indicated only in the circumstances and states of the disease pointed out when remarking on the use of opium and morphia ( § 97.), and in similar combinations to them. Mayerne (Synt. Prax. Med. Lond. 1690, p. 23.) prescribed' the seeds, commencing with six or eight grains, gradually increasing, in the course of forty days, the dose to twenty-four grains : and directed them to be taken in theexpressedjuiceofthesem/;er(;iri<»!. Stoerck employed the extract, the preparation adopted also by Sauvages, Lentin, Bang, Greding, and Oiserteuffer, who derived from it only slight or temporary advantage. — Conium has likewise been employed by Stoerck and some other wri- ters, chiefly with liquor potassas, when the disease is connected with the scyofulous taint. 100. d. The powdered root and leaves of bella- donna, and the extract, are recommended by MiJNCH, fatherand son. Stole, and Bottcher. — RiCIITER, LOBENSTEIN-LOEEL, and HuFELAND (Journ. d. Pr. Arzn. b. ix. p. 100.) prescribe either of these, with tonics, antispasmodics, and aperients, according to the nature of the case. Greding (Ludwig's Adversaria, b. i. par. 4.) considers this plant to possess but little efficacy. Kaufer and jMtJNCH, the son (De Usu Bella- donnce in Melanchol. et Epileps. Goet. 1783), however, contend that it is especfelly beneficial when the fits are followed by maniacal alienation or tremors. It is most suited to the atonic states, conjoined either with ammonio-sulphate of copper, or with nitrate of silver {F. 472.), or with musk, castor, camphor, &c. — Tobacco is stated by Sen- NERT, Zacutus Lusitanus, and Dupau (in Jow, de Med. Sept. 1789), to have been used success- fully in the form of clyster, in the stomachic and verminous associations of the complaint. Currie directed epithems of the infusion over the epigas- trium, before the accession of the fit, with benefit. 101. /. There are many other substances which have been employed internally in this disease. — '((. Digitalis is one of the most important of these. Parkinson (Theatre of Plants, p. 654.) remarks, respecting it, that "divers have been cured of the falling sicknesse thereby ; for after taking of the de- coction of two handfulls thereof, with four ounces of the potlipody of the oake bruised, in ale, they that have been troubled with that disease twenty-six years, and have ftdlen once a week, or two or 812 EPILEPSY — Remarks on Remedies recommended by Authors. three times a moneth, have not fallen once in fourteen or fifteen moneths." Salmon and With- ering also praise it ; but Currie {Mem. ()/' the Med. Society of Land. vol. iv. p. 18.) gave it in three cases with only temporary benefit. Dr. PERCiVAL(E(/i«. Med. and Surg. Jour».\o]. ix. p. 271.) also tried it unsuccessfully, but in an un- satisfactory manner ; for it is not by the empirical exhibition of one or two large doses of this medi- cine that good effects can be obtained from it in a chronic complaint. Its efficacy in small doses has been shown in two cases (Atner. Med. Recor- der, No. 2.) ; and in one that came under my own observation. It has been favourably noticed also by Dr. Br iocs and ]Mr. Scott (Edin. Med. Joiirn. Jan. 1827), and by Knight, who has found much benefit from it in epileptic insanity. Dr. Sharkey recommends an infusion of it in porter to be given until vomiting supervenes. It is advantageously exhibited also in conjunction with tonics, antispasmodics, and anodynes (F. 456. 469. 514. 537.) ; and is most serviceable when the disease has been caused by fright, or is con- nected with disorder of the heart. 102. b. The preparations of mercurxj have been used in epilepsy for their alterative effect, and in combination with various antispasmodics, or with antimonials. Of the propriety of these in the ve- nereal and hepatic associations of the complaint, no doubt can be entertained. But in other cir- cumstances they require discrimination. In the inflammatory or congestive states, and either alone or with James's Powder, they are often bene- ficial, although they be carried so far as to affect the mouth. Piso, Roi.finck, Scardona, Wal- ther, M. Hoffmann (Eph. Ac. N. C. cent. 1. et 2. p. 272., et Ibid. cent. 3. et 4. p. 231.) and Rahn, have adduced proofs of the good effects of salivation in some instances. When we reflect on the frequency of serous effusion in the cavities, and of alterations of the coverings of the brain in fatal cases, a judiciously conducted course of mer- cury, independently of the evidence of Willis, Riedlin, Ettmuller, LocnER,TissoT, Burseri. Lysons, Frank, Sporry (Ueb. die Wurk. des Quiclisilhers in der Ejiil., in Mus. der Heilk. b. i. No. 35.) and others in its favour, promises some be- nefit. It is chiefly, however; in the moreactive con- ditinna, or when the malady presents the apoplec- tic, inflammatory, maniacal, or paralytic compli- cations ; or follows some acute cerebral disease, and the pulse retains considerable firmness ; that mercury, given so as to affect the mouth, is most likely to be serviceable. In these, calomel or blue pill, with antimonials or mercurial inunction, may be employed ; but in the more astlienic and chronic cnsf.s, either these preparations should be conjoined with antispasmodics, as camphor, castor, or musk, as directed by Bang ; or the bichloride should be given dissolved in sulphuric tether (J. Frank), or in tincture of bark ; or hydrarg. cum creta, or Pi.uMMKit's pill, with .James's powder, Castile soap, or any other substance that the pecu- liarities of the case will suggest. 103. c. The elutriated oxide of tin has been re- commended by ]3r. Shearman, in the dose of two scruples to a drachm to an adult, night and morn- ing, continued for four or five days, an active ca- thartic l)cing exliihiled on the fifth day, and the tin again resumed, nccnnlitr^' to its (•ffe<;l. — J'he ace- tate of (end has been prescribeil by Mavehni;, Saxtorth {Acta Reg. Soc. Med. Ilaun. vol. iii* p. 90.), Rush {Philad. Med. Mus. vol. i. p. 60.), and Ei;erle {Lond. Med. Repos. vol. viii. p. 178.) ; and the hydrochloric acid, by Larrey, chiefly in the syphilitic and cachectic states. 104. d. The Agaricus muscarius has been found serviceable in doses of from ten to twenty grains, by Whistling {De Virtut. Agar, Mas. c*^'c. Jenffi, 1773, p. 13.) ; the Boletus suaceoleiis, in doses of a scruple four times a day, by Enslin (De Bol. Suav. ^c. Erling. 1784, p. 77.) ; the Aconitum panictilatum, by Durande ; the root of the Dictamus albus*, by Stoerck ; the seeds and root of the Ilcraclium spondylium, in doses of two or three drachms of the latter, by Pliny {Hist. A^at. 1. xxiv. cap. 6.) and Orne ; the root of the Tussilago petasites, by Cranz {Nat. Med. par. ii. p. 162.); the colchicum, by Alderson {Land. Med. and Phys. Journ. vol. xxxvii. p, 17.) ; the Hyssopus officinalis, by Forestus, Ruland, and Sennert ; the flowers of pimpernel {Anagullis arvensis), in doses of twenty grains, three or four limes a day, by Dioscorides and Gasser ; the expressed juice of the Galium luteum, in doses of two or three ounces in the morning, by Chomel {Plant. Usuelles, &^c. t. ii. p. 24.), Gardane {Gaz.de Sante, 1773. p. 19.), and Wendt {Klin. Annal. p. 146.) ; the seed of the Lycopodium clavatum, by Schroeder and Kuhn ; the Lnnaria rediciva by J. Frank ; the watery extract of the leaves of i/eiu (Taans baccatus), in from one to ten grains in the day, by Loder {De Tato Bacchato. Jena, 1794, p. 17.) and HuFELAND,in uterine epilepsy ; the Cocos micij'era, by Thun- BFRG ; the flowers of the Anchusa officinalis, by Brutz and Baldinger ; the Bryonia alba, by Reusner ; the essential oil of the Buxus semper- vivens, by Schroeder and Vogel ; the flowers of the Lilium convalliwm, by Senkenberg, Bal- dinger, and Langhan, in doses of a scruple to a drachm, in the periodic type of the complaint; the powdered leaves, the decoction, and the es- sential oil of the Origanum majorana, by Dios- corides, Schroeder, and Fonseca ; the berries oi xhaSambucus nigra, by Dufour ; the decoc- tion of the Solanum dulcamara , by Boerhaave, in epilepsy from metastasis ; the flowers and root of the Tilia Europea, by Hoffmann, Ruland, andTiLEMANN (De Mat.' Med. p. 308.) the Ver- bena officinalis, by Sebitz and Rosenstein ; and the distilled water of the Prnnus laurocerasus, by J. Frank. Neither of these require any remark, excepting this last, which, from the quantity of hydrocyanic acid it contains, is sometimes not with- out eflficacy. Its active constituent, liydrocyanic acid, is occasionally beneficial in the simple states of the complaint, after plethora has been removed, and the bowels fully evacuated, or when the dis- ease is connected with great susceptibility and irri- tability, or is dependent on pain, local irritation, or gastric disorder. — Of internal treatment, gene- rally, it may be added, that every medicine will fail, or afford merely temporary advantage, as long as plethora exists, or active determination to the head is unrestrained, and the appetites arc indulged. And I must subscribe to the justice * Baron Sloet, of the Hague, praises the following: — R Pulv. Cort. Had. ])irtamni albi Crc/rnxis (Frn.ri- «(•//«) 'It), j. ; I'ulv. /('iloiiriac 5jss.; Caiiiat 3 ij., in aqua I'lor. 'I'ilia', l)is ad qiiator in die. The bowels to 'In- kept freely open ; and leeches to be applied occasioii- allv I" the anus. EPILEPSY — Remarks on Remedies recommexded uy Authors. 813 of Heberden's remark — " Etenim nulla sunt re- media, quae non toties spes nostras fefelleruut, ut incertum sit quantum illis dubeatiir, ubi visa sunt profuisse," (Commeiil . t^c. p. 143.) It is chiefly by a judicious sequence, and combination of remedies ; and by a well-devised plan, having strict reference to the circumstances of the case ; that we can hope to treat this malady with success.* <« 105. K. Electricity was formerly much em- ployed, but is now seldom tried, in epilepsy. Deshais, ]M.vxgix (Hist, de I'Eteclr. par. iii. Paris, 1752), IMorris (Gent. Mag. 1753, p. 379), LiNNSus (Co/isect. Electrico-Medica. Ups. 1754), Franklin, and Lovet (Elect, rendered vseful in Med. Intentions, Lond. 1760), furnished the earliest notices of its use ; but these were un- satisfactory, and almost contradictory. The more extensive experience, however, of Feller (De Therapia per Eteclrum. Leips. 1785), Feuer- STEIN, Deimann, and Kuhn (Geschichte der Med. u. r/ivs. Elect. &;c. Leips. 1785, 8vo.), de- monstrated — what indeed might have bten in- ferred a priori — that it is occasionally successful in cases characterised by debility, inanition, or tor- por of the vital functions, and in those occasioned by frights; but that it is seldom beneficial, and may even be injurious, in the acute, plethoric, in- flammatory, and hereditary states of the complaint. In cases caused by suppressed di-charge, it is not always a safe remedy : for, although the experi- ments of Spengler and KiJiiN have furnished in- stances of itssuccess in such ; yet those of LiNN^us, Feller, and QuiiRiN, show that it was either in- efficacious or hurtful, unless evacuations had been premised. Of the effects of galnDtic e'ectricitii, the evidence is but little different from the foregoing. Mr. Whitlam {Land. Med. Fhys. Journ. vol.xiv. p. 527.), Ur. Duncan (Ann. of Med. vol. viii. p. 339.), and Mr. Mansford, have detailed cases where this agent proved of service ; but the last- named writer admits, notwithstanding his views as to the nature of the disease (§ 50.), that galvanism can often rank only as an auxiliary means. His plan of employing this agent is peculiar ; and, although it may be the most rational and efficacious, it is seldom possible to have recourse to it ; for, granting that the physician may manage, in the way Mr. i\lA>sFORD directs, con- stantly to inclose the body of his patient within the circle of a galvanic battery, yet it may not * M. BoKiE's' plan of treating epilepsy, which is in great repute in Paris, is as follows : — Having premised a small blood-letting from the feet, exhibited an emetic, and acted on the bowels by means of four grains of calo. mel, and an ounce of castor oil, he dim ts, every morn- ing, fasting, twenty drops of the distilled laurel water in a glassful of sugared water ; increasing the dose one drop daily until it reaches sixty, when that quantity is con- tinued ; and, every night, two drachms of the leaves of the urtcmisia, in powder, in the infusion of the tilia Europea. He applies, every fortnight, moxas — not ex- ceeding six — along the spine, from the occiput down- wards ; causes the lower extremities to be well rul)bed, with somea-therial preparation, twice daily ; and leaves a bracelet on the left arm, which is to be drawn very tight upon the approach of the fit. He allows the patient only water for his drink, and restricts him to vegetable diet. He further directs sea-bathing — the head being first immersed — or the shower-bath, and exercise in the open air, avoiding exposure to the sun : and, lastly, he enjoins him — " Eviter les I'motions vives, les emportemens de rolere, les occupations serieuses, les tensions de I'esprit, les lectures obscencs, la frequentation des spectacles, les contrarietes, les habitudes extenuantes, Tonanisme, les plaisirs vcneriens," ^:c. (Journ. dcs I'rogris des Scicn. MM. t.ii. D. S. p. 226.) prove successful, or the benefit derived may cease with the discontinuance of its use. Of electricity and galvanism, it may be said generally that they have occasionally been found successful ; that, when resorted to shortly before the seizure, they have sometimes suppressed it, or rendered it more mild ; that, when applied during the par- oxysm, they have often mitigated its violence and duration ; and that the safest mode of employing- electricity is to place the patient on the insulating stool, and subject him to the electric hath ; and to diaw sparks from diflferent parts, when thus insu- lated, and placed in connection with tiie prime conductor. 106. L, Of external means, the most de- serving notice are selons, issues, moxas, open blisters, and artificial pustulation. — a. The ac- tual cautery, applied to the nape of the neck, the occiput, and even to the vertex, is recommended by Aret;eus, Celsus, C.t.lius, Aurelianus, AvicENNA, and several writers of the sixteenth and seventeenth centuries. At the present time, moxas have nearly superseded the cautery, and have received the sanction of the most expe- rienced writers, especially Esquirol and Larrey ; the former of whom directs them along the cervix and spine, he having observed disease of the medulla oblongata and spinal cord in several instances. 107. h. Setons and issues have been directed by nearly every writer on the disease. In the cerebral variety, with determination to the head, they are often serviceable ; but in the asthenic forms, or when evacuations have been carried too far, and when susceptibility and irritability are augmented, they often either fail, or increase the disorder, unless tonics and antispasmodics be administered. The nucha is the place usually selected for their insertion, but the insides of the arm or thigh are often preferable situations. Zacutus Lusitanus (Prax. Admir. 1. i. obs. 22.), Ab-Heers, RocHARD, and Lociier, direct either them, or the actual or potential canterif, to the seat of the aura. JM.Andral prefers the latter means, and advises their application to a limb in preference to the nucha or occiput. An accidental burn of the limb, followed by ulcer- ation, has not infrequently effected a cure, as in the case detailed by Dr. Bona (Hufeland's Journ. 1827). 108. c. Artificial pustulation by tartarised an- timonial ointment, applied to the nucha, occiput, or vertex, has been found serviceable by Dr. Carter (Lond. Med. Eepos. vol. xix. p. 382., and vol. xxi. p. 369.), Mr. Crfigtiton, and Dr. IVIn.Ls ; but it has, like all other agents, also failed. Horx (Archie. \B12, May, p. 573.) directs this ointment to be rubbed on the part where the aura commences. — d. The propriety of exciting irritation in the scalp itself is ques- tionable in the inflammatory, plethoric, and acute cases ; although Arf.t.eus recommends it, and Alexander Trallianus advises mezereon bark to be applied to this part. Where the dis- ease has followed the suppression of an eruption in this situation, the antiirjonial ointment, or the mezereon bark, or blisters, are very appro- priate applications. In the more obstinate and chronic cases, and after free evacuations in the more acute, blisters kept freely open, on the oc- ciput, behind theears, or on other parts of the scalp. 814 EPILEPSY — Remarks on Remedies recommended by Authors. are prescribed by Rxverius, Piso, Hoffmann, jMeaDjPercival, and others. — e. ijcarijications of the scalp, particularly on the occiput, are directed by Celsus and C.elius Auuelianus, and are de- serving of adoption in modern practice. — f. Dry cupping on the neck and between tiie shoulders, shortly before the expected return of the fit, has been prescribed by me, with slight benefit, in some cases in which depletion had been carried as far as was judged prudent. 109. M. — a. Oi«imeH/s, containing the active principles of various medicines, as strychnia, vera- tria, acetate of inorpliia, &c., have very recently been tried in epilepsy, and are calculated to prove serviceable in some of its states ; but, as yet, the results have not been such as to admit of further remarks. — ft. Variously medicated epithems have likewise been resorted to, applied chiefly on the epigastrium, or along the spine. 1 have directed them in a few instances with advantage, particu- larly in children, and have generally employed modifications of F. 311. 313. and 770. in this manner. — c. The endermic method, or the applica- tion of various active substances to the skin de- nuded of its cuticle, has recently been tried on the Continent in this disease. It possesses this ad- advantage, that it combines tiie operation of medicinal agents on the nerves of the part, and on the circulation, with external iiritalion ; and it therefore deserves a cautious adoption, and more extended trials than have hitherto been made of it. 110. N. Immediate ligalure of a limb or part, above the situation in which the aura ccm- mences, has been favourably noticed by Galen, Alexander Trallianus, Rhazes, Avicenna, ScHENCK, Gredixg, Lysons, Pew, Cullen, 6cc., and is generally recommended when the fit is pre- ceded by an aura. It sometimes wards off the seizure ; but it fails of doing so as often as it suc- ceeds, although it may have been sufficiently early employed. 111. 0. — a. Arf.t.=eus 15 the earliest author who has noticed trephining the cranium in epilepsy, and the circumstances in which it may be per- formed. C.KLius Aurelianus was opposed to the practice, although he states Tiiemison to have been in favour of it. Instances have, however, been recorded by AnERNiTnE (Qiuent. Mediccp Monspel, 6;c. Monsp. 1617), Riiodius {Ohserv, cent. i. obs. 66.), Van der VViel (Observ. Med. cent. i. obs. 8.), Marchettis {Ohserv. Chi- rurg. Patav. 1664.), La Moite (^Chirurgie, t. ii. p. 40.'J.), LvsoNs (Essays, ^c. p. 111.), KriE, TissOT, and others, where external injury, and circumscribed disease of the bone or sculp, have furnished indications to warrant the perform- ance of this operation ; and where it was resorti;d to with success. It has also been practised re- cently with benefit. Dr. Ei.i.ioison refers to a case in St. Thomas's Hospital, where the trephine removed a piece of bone with a sjjicula from its inner surface, and cured the disease. Otiier suc- cessful instances are recorded by Dr. Guild (JUc(^. and Chirurg. Review, \o\.x'n. p. 504.), and Dr. IJlake (Lond. Med. and I'hys. Jonrn.Jnn. 1826). — /;. The much less feasible experiment of lying the common carotid, in order to cure the disease, has been suggested by Mr. Eaui.e, and actually practised by Mr. Piuston (Trans, (fllie l\led. and I'hys. .'ioc. of Calcutta, vol. v.) ; but its ultimate success is not apparent. — c. Pressure on the ca- rotids has been advised by Mr. Earle; but it is probable, that the obstruction it must occasion to the return of blood from the head will be as in- jurious as the diminution of the supply may be beneficial. 1 12. P. Travelling, and change of air and, of residence, are sometimes serviceable ; and are re- commended by Hippocrates and Hoffmann. In the cases of children, change to a dry situation, or to the sea-side, is especially beneficial. Van SwiETEN (CommeHf. vol. iii. p. 436.) states, that several epileptics were cured by emigrating from Holland to the East Indies, and that, upon their returning to Europe, some experienced a relapse, but that others had recovered permanently. It is chiefly, however, in the asthenic and sympathetic forms of the disease that change of air and travel- ling prove serviceable. 113. Q. Regimen. — In addition to what has been already advanced on this subject, the prac- titioner should bear in mind, that as much may be done by a regimen suited to the peculiarities of the case as by medicinal agents. — a. The meals should be light, very moderate in quantity, at re- gular and not too long intervals between each. In the plethoric and more acute states, animal food should be altogether or nearly relincjuished ; but in the asthenic conditions, or when there ap- pears to be a deficiency of blood, the more diges- tible kinds of animal food may be allowed once, and occasionally twice, a day. Even in these latter cases, a spare, but nutritious and digestible, diet ought to be adopted, as a liberal allowance will seldom be duly assimilated, and will only embarrass the digestive organs. The principal meal should be taken early, and a light supper, consisting of a biscuit and half a pint of milk, about an hour before retiring to rest. The only drink, in plethoric habits, should be water, or toast-water, or imperial ; but in the opposite states, and in asthenic cases. Seltzer vvater, or even Pyr- mont or Spa waters, with milk, may be allowed. Chocolate and cocoa are unsuited to the former class of cases ; and coffee and green tea should be avoided, especially where active determina- tion to the head is observed. Black tea once a day, and milk and water, are the best suited to the ordinary states of t!ie disease. Not more than half a pint of any liquid should be taken at one time. 114. b. Epileptics should noi sleep longer than seven hours. l hey ought to lie in an airy cham- ber, without curtains to the bed, and without nightcaps; upon a hair mattress, with the head and shoulders somewhat raised. U'lie hair ought to be worn closely cut, and in the severe sthenic cases should be shaved entirely off. The tepid or cold afi'usion on the head, or shower-bath, should be used every morning, the scalp being afterwards well rubbed. In all an^cs, early rising, and ?'ew-?t- /(/)■ exercise in the open air, should be enjoined. i5ut the exercise should not be at one time, but twice or thrice daily, vvith intervals of repose. It shotdd be taken on foot, and not sooner than two hours after a full meal. The patient should be as much as possible in the open air, but should not venture on horseback. Flannel ought to be worn next the skin, and the lowercxtremities constantly kept warm. During warm weather, a light-coloured hat should be worn ; and expo- EPILEPSY BlBLIOOnAPIIY and IlEFEnENCES. 815 sure to tlie sun's rays always avoided. When the attacks are at all fioqacnf, the patient ought never to be without an attendant, and lie should be guarded from the fire, from precipices, and water. He ought not to frequent crowded assemblies, nor even the bustling and crowded streets of great cities, nor should he look down from precipitous places. — There is no disease that requires a more strict dominance of liie passions and desires than this. The concluding injunc- tions of RI. Borie's judicious treatment (see note to § 104.) especialies require observance, as the habits there referred to have a powerful influence both in inducing and perpetuating tlie malady, and in destroying the constitutional and intellec- tual powers. BiBLioG. AND Refer. — Herodotus, \. vi. cap. 81. — Hippocrates, De Morbo Sacro, edit. Van der Linden, vol. ii. p. 324. ; et De Aiire Locis, et Aquis, vol. 1. p. 327 Aristotle, Probl. sect. xxx. qucest. i. — Aulas Gelliies, Noct. Attic. 1. xx. cap. 1 — AretteusfGe Caus. et Sign. Morb. Acut. 1. i. cap. 4. et 5. ; et Chron. 1. i. cap. 4. ( The best writer on epilepsy among the ancients.) — Celsiis, 1. ii. cap. 8., et 1. iii. cap. 23. — Galen, Com- ment, in lib. vi. Epidem. ; et Charter, t. ix. p. 550. — CiBlius Arirelianus, Chron. Morb. 1. i. cap.iv — Oribasius, Synopsis, 1. viii. cap. 3, 4. — A'elius, Tetrab. ii. serm. 2. — Alexander Trallianus, l.i. c.21. — Paulus ^,gineta,\.m. cap. 13 Avicenna, canon. 1. iii. fen. i. tr. 5. cap. 8, 9. — Arnaldus De Villa Nova, Opera, fol. 310. — Roth, De Ortu et Cura Morbi Comitialis. Lips. 1548. — Mercurialis, Consil. vol. i. No. 26. .')4.77., vol.ii. No.8.5., vol.iv. No. 30. hG. — Gnbuccini,'Oe Morbo Comitiali. Venet. 1.5fi8.— Liebault, Ergo Ingeniosi et Lilndinosi Epilep. Obnoxiosi sunt, 4to. Paris, 1580. — Bartliolin, Hist. Anat. cent. iii. No. 80 Dealers, De Epil. Adultorum, 4to. 1611. — Fer- nelii/s, Consilia. vii. et seg. ; et Patholog. 1. v. cap. 3. — A Collection of English Medicines experienced against the Jaundice, Dropsy, Falling Sickness, and Pestilence. Lond. 1615 Forestus, Observat. 1. x. No. .58. — Salmuth, Observ.-cent.i. obs. 90. — Panarolus, Pentecost, iv. ob- serv. 42. 47., et v. obs. 3.5. — Riveriiis, Prax. Med. cap. 7. ; et Obser. cent. ii. No. 93. — Rulfinclc, De Epil.4to. Jena;, 1640. — Schellinmmer, De Epilepsia. Jena;, 1644 Willis, Pathologia Cerebri. Oxon. 1664. ; et De Morbis Convul- sivis, cap. 3 Piso, De Morbis ex Serosa CoUuvie, &c. p. 100. 150. — Horstiiis, Opera, iii. p. 32 Langlois, Ergo Epil. de Melanch. Ha?morrhoides SaUitares. Paris, 1640. — Ettmiiller, Opera, vol. ii. par. ii. p. 779. — Senncrt, l.i. — ScI.enk, Obscrv. Med. Rarior. &c. 1. i.— Wedel, De Epil. Hysterica. Jenee, 1676. — Ramnxzini, Opera, p. .339. — r^Vf/nVjjjre, Do Epil. Hypochondriaca, 4to. Lugd. Bat. 1677. — Richard, Ergo Epil. Venarura Jugular. Sectio,4to. I^aris, 16-i9 T. Mai/erne, Prax. Med. &c. p. 52— A. Bra, ^.italiigus Medicam. adversus Epd. Aruh. 1690. — Gould, in Pliilosoph. Trans. 1684, p. 537 — Eickmeyer , De Epil. Uterina, 4to. Ultraj. 1698. — F. Hoffmann, Diss, sistens Affectus Hsreditavios. HaliE, 1699. ; et De Vera Mali E[)il. Causa. Halse, 1732; et De Peregrinationibus, &c. Hala;, 1701, p.22. — AVieg^rf, De Epil. Rotatoria. Lugd. Bat. 1722. — ilarchard, in Mem. de I'Acad. des Scien. 17oO, p. 3.5.5. — Co/e, Consil. iEtiolog. de Casu quodam Epil. &c. Svo. Lond. 1702. — Clossy, Observations taken of Morbid Bodies, sect. i. obs. 9. — Bonet, Sepulchretum, L i. sect. yi\\.—Alberli, De Epil. 4to. Halx, 1718 Boer- haavc, De Morbis Nervorum, p. 770. — Van der Wiel, De Eiiil. Lugd. Bat. 1719. — ./. Co/irt/cA, Diss, ccracerning Miseltoe, a most wonderful Specilick Remedy for Convul- sive Distempers, 8vo. Lond. 1723. — l-'.tahl, De Morbo Caduco. Erf. 1730.— Mead, De Impcrio Soils et Lunae, cap. 2. — Morgagni, De Sed. et Caus. Morb. ep. ix Millars, De Medicara Antepilepticis. Argent. 1737. — Monro, in Edin. Med. Es.says,&c. vol. v. part ii. p. 561 Meibom, De Epil.. Stomachica, 4to. Helmst. 1740 J. Junckcr, De Cur.»Epil. sine Specificis, 4to. Halee, 1740. — Roncalli, Histor. Morborum, &c. p. 21. et seq. — Buch- wald. Analysis Visci ejusque in Divers. Morbis Usus. Hafn. 1753. — JVeisnumn, in Nova Acta Nat. Cur. vol.i. p. 276. — Linnteus, Amoenit. Acad, vol.ii. p. 135 — Kiemp- ■*;•(•, .^moen. Exot. fasc. iii. p. 595. {Moj'as along the co- ronal suture.) — Delius, De Cranii Ustionc in Eidl. Erl. 1763 Locher, Observ. Pract. Circa Luem Ven. Epileps. et Maniam, Svo. Vind. 1763. — Hannes, De Epil. Foliis Aurantiorum Cur. &c. Leip. 1766. — Gesner, Beobacht. b. i. No. 19. — Andree, Cases of Epil. Hysteric Fits, &c. Svo. Lond. 1764. — Van Swieten, Comment. &c. t. iii. p. 404. — Stoerck, Libel, de Stramonio, Hyoscyamo, &c. 8vo. Vindob. 1762 — Mangold, De Epil. Speciebus non- nuUis, in Opusc. Med. Phys. Alt. 1769 Sauvages, Nosol. McHhod. t ii. par. ii. p. 97 — Tralles,V)i; Usu ()pii, sect, iii.— Tissot, Traite de I'Epilepsie, Svo. Lausanne, 1770 Fothergill, in Med. Observ. and Inquiries, vol. vi. p. 79. — Johnston, in Ibid. vol. ii. No. 6. — Stull, Prielcct. vol. ii. p. 1. — Hallcr, Opusciila Pathol, obs.74 Werlhof, Opera Med. pars i. p. iiii.— Baker, Med. Trans, of Coll.of Phys. vol.ii. p. 442. — D. Lysons, Pract. Essays on Inter- mit. Fevers, Dropsy, Epilepsy, &c. Svo. liath, 1772 . ■SVrfrf«,DeUsu Stramouii in Convuls. Ups. 1772 — Brom- field. Observations and Cases, vol. i. Lond. 1773. — W. Threlfiil, Essay on Epilepsy, &c. Svo. Lond. 1772 De Hiien, Rat. Med. par. v. cap. iv. — Lieutaiid, Hist. Anat. Med. 1. iii. obs. IS. bO.— Tkilenius, Med. u. Chir. Bemerk. p. 124 Reiningcr, Diss, de Prole Parentura Culpas luente. Lips. 1772. — Kinneir, New Essays on the Nerves, p. 117 Crell, De Zinco Medico. Helms. 1780. — (iuarin, Aninjadvers. Practicfe in Divers. Morbos. Vindojj. 1780. — Weizenbreyer,\)e Cupro Medicato. Erf. 1783. — Starke, Klin. Institut. p. 176. — IV. Perfect, Cases of Insanity, Epilepsy, &c. Svo. Lond. 1781. — Hartmanji, Diss.isis- tens varias Epil. Med. Methodos. Franc. 1787 Greding, Vermischte Schriften, th. i. p. iS9. et seq.; et Siimmtl. .Schrift. i. p. 294. etseq. ; et in Ludwig's Adversaria, t.ii. ett. iii. — J. H. Munch, Observ. Prat, de Usu Belladonnas in Melancholia, Mania, et Epil. Svo. Goet. 1783.— Hir- sc/iel, Gedanken von der Fallcnden Sucht, p.35. — Feucr- stein, De Epil. 4to. Goet. l7'.>2.~M>elia(-tis, Med. Pract. Biblioth. b. i. st.3. — Oberteiijfer, in Museum d. Heilk. b. iv. p. 172. — Theussink, in Ibid. b. iii. p. 147 Wagner, Epist. de Morb. Insanabilium Curatione. Lips. 1792 . Burserivs, Institut. Med. Pract. vol. iii. p. 258 T/iomas, Journ. de Medecine, t. xxvii. p. 238 Rochard, in Ibid. t. XXV. p. 46. — Chevalier, in Ibid. t. xii. p. 329 Wien- mann, in Ibid. t. xi. p. 277. — Buuteillc, in Ibid. t. xlviii. p. 544. — Lemonier, in Ibid. t. lix. p. 421. — Arnaud, in Ibid. t. Ixxvi. p. 246. — Beaumes, in Ibid. t. Ixx.p. 290. Morand,m Ibid. t. xxxv. p. 565 Dela Roche, in Ibid. t. xlii. p. bin.— Dumas, in Ibid. Dec. 1810, p. 385.— Lnd- wig, De Vi Terroris in Corp. Human. &c. Lips. 170!>. Osiander, Denkwiirdigkeiten,&c. b. ii.p. 188 Ferriar, Med. Hist, and Reflect, vol. ii. p. 48. — Burmelster, De Morbo Spastico. Goet. 1791. — Pideril, Practische An- nalen, st. i. p. 91. — Collingivood, in Edin. Med. Comment. vol. xviii. p. 390 Heysham, in Ibid. vol. vii. p. 349 . T. Bland, in Ibid. vol. vii. p. 301 —B. Bell, in Ibid. vol. i. p. 204._i;t' la Roche, in Ibid. vol. i. p. 200.— T. Percival, in Ibid. vol. ii. p. 309., vol. v. p. 166 Walker, in Ibid. vol. X. p. 288 Guthrie, in Annals of Med. vol. iv. p. 473. — Mossmann, in Ibid, vol.ii. p. 413 Cappe, in Ibid. vol. iii. p. 455.— Hull, in Ibid. vol. v. p. 245 Handel, ya. Ibid, vol, iv. p. 273.— W. Batty, in Ibid. vol. vi. p. 377.' — Richter, Med. u. Chirurg. Bemerk. Sec. p. 137. — Maissoti- neuve, Rechercheset oijserv. sur I'Epil.Svo. Paris, 1800. — Currie, Mem. of Med. Soc. of Lond. vol. iv. art. 2 S«»i, in Ibid. vol. ir. art. 24., et vol. vi. art. 29. — Store, De Faba Sancti Ignatii. Erl. 1793 — A. F. Ueeker, Diss.de Epil. Svo. Erf. ISCO. — /'oj-^rt/, Mem. sur la Nat. et le Traitement de plus. Mai. t. ii. p. 229. ; et Observations sur la Nat. et le Traitem. de I'Epil. Svo. Par. 1827. — Pinel, Nosographie Philosoph. vol. ii. p. 70. — Bostock, Med. and Phys. Journ. 1800, vol. i. p. IW.—Magennis, in Ibid. vol. iv. p. 417. — Arnemann, in Ibid. vol. xiv. p. 430. — Willich, in Ibid. vol. i. p. 183. (Rev. of Med. successfully employed in epil.)— White, in Ibid. vol. ii, p. 173 Rush, in Ibid. vol. xiv. p. 10. — Spence, in Ibid. vol. xviii. p. 355. — Fraser, Treatise on Epil. and the Use of the Viscus Quercinus, &c. Svo. Lond. 1806 Lentin, in Hvf eland's Journ. der Pr. Heilk. b. xiv. st. i. p. 44. — Hildenbrand, in Ibid, b. ix. st.iv. p. 34., b. xiii. st.i. p. 140 — Joerdens, in Ibid. b. xiii. st. iv. p. 143 Fischer, in Ibid. b. xii. st. i. p. 169. — Gebel, in Ibid. b. vii. st.iii. p. 177. — Mliller, in Ibid. b. XX. St. i. p. 173 — Bischoff, in Ibid. b. xxx. st. ii. p. 126 — Hufeland,m Ibid. June, 1811, p. 14. — Remer,m Ibid. b. xvii. st.i. p.ll3 Autenrielh, Physiologic, § 1041. (The medulla oblongata diseased.) — Baldingcr, Magazin fiir Aerzte, St. iii. p. 745 Viciveg, Annalen der Heil- kunst. May, 1811, p. 426.— Pros/, Med. Eclairee par I'Ob- servat.etrOuvert de Corps. Svo. vol.ii. p. 379. Paris,1804. — Joseph Frank, Acta Institut. Clin. Universit. Vilnens. &c. Lips. 1808. ; et Praxeos Med. Universa Prascepta, pars ii. vol. i. sec. ii. p. 277.— J. Wenzel, Beobacht. iiber den Hernauhang FallsiichtigerPersonen, &c.8vo. Mainz. ISIO. — Esquirol, in Diet, des Sciences Mi'dicales, t. xii. p. 510. — Powell, Med. Trans, of Coll. of Phys. vol. iv. art. 8. — Badeley, in Trans of Med. and Chirurg. Soc. vol. ix. p.l. — Valentin, Ann. de la Soc. de Med. de Montp. t. viii par. ii. p. 301. (Acetate of lead in epil.) I.obenstein-Lobel , V.'esen u. lleilung der Epilepsic, Svo. Leip. 1818. — Aibers, in Med. Chirurg. Soc. Trans, vol. vii. par. i. — Roget, in Ibid. vol. vii. p. 290. — Halle, in Nouv. Journ. de Med. t. v. p. \83.—Rudolphi, Diss, sistens Ca- sum Epil. per Terebrationem Cranii Sanata;, Svo. Berol. 1811 Moreau, Recueil Periodique, &c. t. vi. p. 226 Ciillerier, in Ibid. t. xiv. p. 271 J. C. Prirhard, Treat. on Dis. of the Nervous System, Svo. Lond. 1822, p. 85. el seq. — ,1/. Georget, La Physiol, du Syst. Nerveux, et Recherches sur les Mai. Nerveuses, t.ii. p. 365. Paris, 1821.; ct Diction, de Mi'd. t. viii. p.20(). _,/. Cooke, Hist, of the Method of Cure of the various Species of 816 ERECTILE TISSU Epil. 8vo. l.ond.lH23. — Larrey, Rev. Medicale, Jul. 1822. {The si/p/iiliiic.) — Me7iarcl, in Ibid. Mars, 1825.— Z). A. G. Tt/c/iter, Die Specielle Therapie, &c. b. vii. p. 5rt'2. — Mii/s, The Morb. Appearances in Dis. of the Brain, &c. Dub. 1S2G, 8vo. p. 213.— Cliishulm, in I>ond. Med. Repos. vol. xxi. p. 102.— Carter, in Ibid. p. 369. — Surdach, Archives Gener. de Med. t. vii. p. 588. (Cases treated by the artcmisia.) — Iloileaii. in Ibid. t. vlii. p. 45. (Case xrhere /igature af carulhlfur a irounddid not ejfecl a permanent ein-e.) — Masseau,\\\ liiid. t.viii. p. 603. (Case in tnhich the heart teas remarkabli/ small.) — Pei/ssuti, in Ibid. vol. xi. p. 4G2. — W. Shearman, Lond. Med. and Phys. Journ. vol. xxiii. p. 314. ; and Lond. Med. Repos. vol. xviii. p. 181. — J. Smith, ini,ond. Med. Repos. vol.'iv. p. I'Jl. — Siveetmg, in Ibid. vol. v. p. 175. — R. Rcid, in Transact, of College of Phys. in Ireland, vol. iv. p. 354 Creighton, in Ibid. vol. iv. p. 3.32. — Giinn, in Edin. Med. and Surg. Journ. No. BO. p. 78 Scott, in Ibid. No. 90. p. 19. — lVidia?ns, in Ibid. No. 85. p. 297 Coates, in Ibid. vol. 1. p. 428 — Clarke, in Ibid. vol. v. p. 272. — Lith- gow, in Ibid, vol.xi. p. 300. — Prichard, in Ibid. vol. xi. p. 458. — E. Percival, in Ibid. vol. ix. p. 271. ; and Dub. Hosp. Rep. &c. vol.i. — Lombard, Gazette Medicale, No. 66. vol.iii. — W. Burnett, Trans, of Med. and (Jhirurg. Soc. vol. xiii. p. 202. — Tacheron, Recherches Anat. Pathol, sur la Med. Prat. t. iii. p. 5^6. Paris, 1823. — Rogers, New York Med. and Phys. Journ. 1826. — L. F. Caimiel, L'Epilepsie etudiie ecus la Rapport de son Seige, 8vo. Paris, 1826 Baillie, Lectures and Observ- ations on Medicine, 8vo. Lond. 1825. — Revue Medicale, t. iii. \S27 .—Menard, in Ibid. t. i. 1825, p. 3m.—Brqfferio, in Ibid. t. iv. 1825, p. 488. —Larrey, m Ibid. July, 1822; ot Med. Chir. Rev. vol. iv. p. 465. — Kolotviich, Journ. des Progres des Sciences Med. t. xii. p. 257 Bouchet et Ca- zauveilh. Archives Generalos de Med. t. ix. p. 510., et t.x. p. 5. {Belaliuns of epil.tptth insanity.) — Loewenhard, in Ibid. vol. xvi. p. 605. — Urban, in Ibid. t. xvi. p. 273 Stengel, in Ibid. t. xvi. p. 597 Rcn7ies, in Ibid. t. xvii. p. 63. — F. Hatin, De I'Epil. consid. dans sa Nat. et dans ses Causes et des Moyens prop, a les querir, 8vo. Paris, l»iO.— Elliotson,\n Lancet, vol. xviii. p. 116. 231. 539. ; and in Lond. Med. Gazette, vol. vii. p. 423.798., vol. viii. p. 278., and vol. xi. p. 577. 609. — Sims, in Ibid. vol. vii. p. 374 — A. T. Thomson, in Ibid. vol. ix. p. 241. 387 F. .HattfA/ns, in Ibid. vol. viii. \^.\9'i. — Davidson, in Ibid, vol. ix. p. 664. 707. 819 — Roots, in Lond. Med. and Surg. Journ. vol. iii. p. 12. 171 — Boisseau, Nosographie Orga- nique, t. iv. p. 782. — Fovil/e, Diet, de Mid. et Chirurg. Prat. t. vii. p. 412 Cheyiie, in Cyclop, of Pract. Med. vol.ii. p. 85. — Bartels, Encyclop. Wiirterb. de Medicin Wissenchaften, b. xi. p. 357. — A?idral, Lectures on Epil. in Lancet, No. 502., p. 65., and No. 503. p. 102. EPISTAXIS, See Haemorrhages. EllECTILE TISSUE.— Syn. Vasa Erigentia ; Tela Erectilii. Tissue Erectile, Fi'. Erectiles Gewebe, Ger. Cl \ssii-. — Pathology — Morbid Struc- tures. 1. This structure, which is eminently vascular, and copiously supplied with organic or ganglial nerves, possesses, beyond all others, that vital pro- perty which is obscurely evinced by several other textures, and which was denoLninated the turgor vitalis, or vital turgescence, by Hebenstriet, Sciii.ossER, Reil, and Ackermann. This pro- perty, whether denominated as above, or called vital expansion, or any other name, is more ge- nerally diffused, and presents more important relations, both in health and in disease, than have usually been acknowledged.- The reader will find it more fully discussed under the article Turges- cence. i have merely to notice in this place, very briefly, the morbid states which the parts allowedly erectile present. 'These parts are — the cavernous and spongy body of the penis, as well as its bulb and gland ; the clitoiis and nvmphoB ; and the nij)ple of the female. There are other j)arts more obscurely (owing to their situation), but undoubtedly, endowed with this property : these are — the uterus, especially its neck; the Eallopian tubes, particularly tiie fimbriated ex- tremities ; the spleen ; and the lips of ijoth sexes ; but these are not comprised in tlie following ob- servations. The morbid structure called Nirims malernus, Aneurimn by Anastomosis (JJkll and E. — ERETHISM. Freer), Angiectasia, or vasorum dilatatio (RIeck- el), Telangiectasis, orvasorum iiltimorumdistensio, by some German authors, appears to be merely an accessory or morbid form of the erectile tissue ; and I agree with Dr. Craigie in considering that such is the case, and that the throbbing vascular tumour first noticed by Pearson, and subse(iuently minutely described by Scarpa, is an adventitious formation of the same kind. 2. The erectile tissue may evince its charac- teristic property in a very marked manner, and to an extent that is truly morbid, without any appreciable change in its organisation. This is shown in priapism, in which the vascular turges- cence is the result merely of nervous excitement or irritation. Chordee is a modification of this state, caused chiefly by inflammation of an ad- joining structure ; the erectile tissue of the penis being excited, whilst the submucous tissue of the urethra is inflamed, and unyielding, owing to its moibid state, and to spasm of the ischiocavernosus muscle. 3. Haemorrhage rarely takes place sponta- neously in erectile tissues. I have, however, met with it in the corpus cavernosum of the penis, occasioning a state nearly resembling that of priapism, but unattended by nervous or mental excitement. In tiiis case, the morbid state was removed by a small incision made into the cavernous structure, when grumous dark blood escaped. An interesting instance of this kind is recorded by INIr. Callaway. Similar changes are r)ot so infrequent from external violence, par- ticularly in the erectile tissue of the female organs, owing to difficult or instrumental labours. This tissue may be the seat of excrescences, of scir- rhus, and, like others, be involved in specific inflammation, malignant ulcerations, and adventi- tious formations ; but such of these as belong to the province of the physician are noticed in the articles on the Spleen and Uterus. BiBLiOG. and Refer. — J. Bell, Principles of Surgery, &c. vol. i. disc. xi. p. 456. 1801. — Freer, On Aneurism and some Diseases of the Arterial System, &c. Birm. 1807. — Peanon, in Medical Cominunications, vol. ii. p. 95 Scarpa, On the Pathology and Treatment of Aneurism. — Callaway, in Lond. Med. Repos. vol. xxi. p. 286. — Craigie, General and Patliological Anatomy, p. 192 Meckel, Anat. Pathol, t. iii. p. 792. — Begin, in Diet, de INIed. et Chir. Prat. t. vii. \> iW. — MUller, Encyclop. Wiirtetb. der Med. Wissenchaft. b. xi. p. 460. ERETHISM, AND MERCURIAL ERE- THISM. Erethismus (EpEfltcrjuo;, from Epsfli^o), I excite or irritate). 1. I. Erethism, in Pa//ii)/o^'3/, has been gene- rally understood, since the time of 1I(i>pocrates, as implying a state of irritation, or excitement of a part, differeut from, or short of, the inflam- matory oondiiion, although often passing into it. Ilipi'OCRATEs and Auet;eus viewed it as irrita- tion, accompanied with some degree of debility. Galkn applied the term to irritafion of the sto- mach and intestines by acrimonious fluids; and Uiost of the ancients believed that, where it ex- isted, it prevented the accession of salutary cri- tical evacuations. Many modern pathologists employ it as synonymous with orgasm, or simply an exalted state of the vital actions of a pan ; and others attribute to it more of a morbid im- port, viewing it as an early sl.nge, and lesser grade, of many acute disea.ses, especially tiiose tiiat are febrile or inflammatory. 'J he most familiar illustration of this state, according to tiie ERETHISM, MERCURIAL. — ERGOTISM. 817 former class, is the act of blushing. According to the latter class, the ravenous appetite attend- ant sometimes upon debility and various aflec- tions of tiie digestive organs, proceeds from erethism of these parts, or, in other words, from an excited state of the nerves of tlie organ, with increased circulation and secretion or exhalation from the villous surface. It is very probable that this state, either prolonged, or frequently ex- cited, will give rise to acute or chronic inflam- mation, and even to changes of structure, and to effusion from mucous or serous surfaces. That it prevents the accession of critical changes, is also probable. 2. This condition should be viewed as morbid, and treated according to its seat and grade. It requires, generall}', refrigerants, ligiit or low diet, soothing and mucdaginous drinks, tepid or warm bathing, cooling diaphoretics and diuretics, and mild laxatives and enemata. When ne- glected, it is apt to extend the sphere of its morbid influence, more especially when sealed in the digestive mucous surfaces; the functions of digestion, sanguifaction, and assimilation becom- ing disordered, and irritation supervening in the cutaneous surface, in the liver, and even in various remote parts. (See art. Disease, § 72. et seq. and 78. et seq.) 3. II. Erethism, Mercurial — Erethisnnis Mercurialis — was the name given by Mr.PEARsoN to that extreme state of irritability and exhaus- tion which sometimes is occasioned by mercury. Before this state was described by this surgeon, its nature and cause had been entirely over- looked, although it must have often occurred, and even proved fatal. It evidently arises from the poisonous action of the preparations of mer- cury upon the organic nervous system and heart. The preparations which most commonly produce it, are, the blue pill and the ointment, paiticu- larly the latter ; and it is not improbable that some change may take place in these from the action of the air, when they have been long kept, that will give rise to this affection, although pre- scribed in the quantities safely administered in the more recent state. A mercurial atmosphere, as in confined syphilitic wards, has also, very probably, a considerable share in its causation, 'i'he erethis- mal symptoms usually come on early in a mercurial course, but they may occur at .any period. When once produced, they very readily return upon resuming the mercury, in the same form that first occasioned them. Pre-existing debility, the action of malaria, the scrofulous diathesis, constitu- tional susceptibility and irritability, and previous mental excitement and anxiety, seem to be, as far as is yet known, the chief predisposing causes. 4. i. This affection usually conunenees with slight trembling of the limbs and tongue, sense of fluttering in the chest, irregularity of the heart's action, and palpitations on the least exertion. The pulse is feeble, small, quick, compressible, irregular, or intermitting. The strength is ex- tremely depressed, the countenance is pale and contracted ; and great anxiety at the prfecordia, with frequent sighing and a feeling of sinking, is complained of. If the mercury be still con- tinued, the tremblings, the frequency, irregularity, and intermissions of the pulse, increase rapidly, and are attended by a sense of coldness, and Vol. I. sometimes by vomitings. At this period, sudden or great exertion may extinguish life. 5. ii. The Treatment, early in the affection, is generally easy and effectual. Upon the first in- dication of it, the patient should be removed to, and remain as much as possible in, the open air; and mercury, in every form, relinquished; even a mercurial atmosphere should be avoided. The pre- parations of ammonia and camphor ought to be given in full doses, and the surface of the body cleansed from all impurities, especially from the remains of mercurial ointment. Having thereby re- stored thestateof the circulation, a courseof nitric acid with sarsaparilla should be entered upon, and the bowels kept gently open by a sufficient dose of the precipitated sulphur taken at bedtime on alternate nights. If it should be still necessary to resume the use of mercury, as sometimes proves to be the case, the utmost circumspection is requisite. The bichloride in the tincture of cinchona, or in the form of pill with the pulvis glycyrrhizaj and camphor, and taken with the meals, will often produce a sufficient salivation. After a most severe case of this affection which came under my care, where it was determined, in consultation, to have recourse to mercurial salivation as a last resource, for tiie cure of most dangerous secondary syphilis, the preparation pre- scribed in the manner now mentioned had the desired effect. BiBLioG. AND Refer. — Hippocrates, Aphorism, xx. sect, i — Arelieiis, De Cur. Morb. Acut. 1. i. cap. I.— J. Pearson, On the Lues Venerea, 2il edit. p. 156. — Vaidj/, in Diet, des Scien. Med. t. xiii. p. 161. — Batemnn, Trans. of Med. and Cfiirurg. Soc. vol. ix. p. 2'20 T.H. Burder, in Cyclop, of Pract. Med. vol. ii. p. 101. ERGOTISM.— (Classif.— Pathology, — /Etiotogi).') Diseased, unripe, or damaged grain of any kind, is injurious to the animal economy, according to the quantity consumed. The specif s of grain, the nature of its alteration from the wholesome state, and the proportion of it enter- ing into the food of man and the lower animals, are the chief circumstances modifying the morbid results. Kite is most frequently productive of injurious effects in the northern countries of Eu- rope, the disease in it giving rise to the ergot, or spur, being the chief cause. Rut wheat, rice, or any other grain, either similarly diseased, or pre- maturely cut down, or damaged by the mode of keeping, or by age, or mixed with the seeds of poisonous plants, as those of the Jlaphania ra- jihanistrum and the Lntinm temnlentum, will occasion dangerous diseases. The noxious effects of spurred rye (Secale cnrmitum) have been most frequently observed, and are especially noticed in connection with the affections of which it is one of the chief causes. (See arts. Gangrene, and Spasm — Cachectic). But the disorders pro- duced by other kinds of diseased or unwholesome grain, are in many respects similar to those con- sequent upon the use of spurred rye. Sufficient allusion has been made, in the article Epi- DEMics, to the influence of unripe, blighted, deficient, or damaged crops, upon the health of the community ; the epidemics thereby oc casioned, varying in character with the particular state on which the unwholesomeness of the grain depended, and the concomitance of other causes. The particular unwholesome condition of grain has not, however, been hitherto viewed suf- ficiently in connection with its specific effects 3 G 818 upon the economy, in any one instance ; and it is only in respect of spurred rye that we have any kind of data that will admit of the special consideration of the subject. From some circumstances that have come before me, I should infer that unripe grain is productive chiefly of diarrhoea and dysentery; that diseased, impure, or bhghted grain, most frequently occasions af- fections of the nervous and vascular systems, with disorder of the digestive organs, and con- tamination of the circulating fluids ; and that damaged and old grain gives rise principally to fevers of a malignant or adynamic kind, with predominance of some one or more of the pre- ceding affections, according to concurrent causes and circumstances. (See Disease — Causation of; Gangrene, and Spasm,) ERYSIPELAS. Syn. — 'E7^■:<^^Xo>ta■/^a, Hip- pocrates; Ipuo-iVeXaf, Gr. (from Trapa, to Sfvc!r9a.i twi to TrtAaf, that it extends to adjoin- ing parts; or rather, from spuoo, I draw, and TriXfflf, adjoining ; or from Ipufifo?, red, and tteXoc, brown, livid) Ignis -Sacer, Lat. Fehris Erysipelalosa, Sydenham, Schroeder, &c. Fe- hris Erysipelacea, Hoffmann, Vogel, &c. Rosa, Serinert. Jgnis Sancti Antonii, Auct, Var. Emphlysis Erysipelas, Good. Erysipite, Fr. Die Rose, der Rothlauf, Germ. Erisipela, Risi- pola, Ital. The Rose, St. Anthony's Fire, Classif. — 1. Class, Febrile Diseases; 3. Order, Eruptive Diseases (Cullen). 3. Class, Sanguineous Diseases ; 3. Order, Eruptive Fevers (Good). 4. Orrfer, Vesi- cular Eruptions (Willan). III. Class, III. Order (Author, in Preface). 1. Defin. — Asthenic infiammation of the in- teguments, affecting them more or less deeply and extensively, with diffused tumefaction, and a dis- position to spread, depending upon constitutional disorder, 2. I. General Description. — A. Erysi- pelas* usually commences with either the local or the constitutional symptoms more prominently marked ; but I believe that the local symptoms never manifest themselves before some disorder referrible to the vital sources and centres has been present, altiiough frequently in too slight a degree to alarm the patient or come before the physician. Previous to, or accompanying, a sense of tension, itching, heat, weight, and un- easiness, with diffused redness and swelling of the skin, the patient experiences chills, rigors, dis- turbance of the functions of the stomach and bowels, and a quickened circulation. On the second and third days, the swelling, which was either slight, or scarcely noticed, increases ra- pidly, extends superficially, and is warm, shining, of a yellowish red colour, disappearing moment- arily during pressure, wiiii a tensive burning pain, exacerbation of fever towards evening, and remis- sions in the morning. In addition to these, the patient complains of frontal headach, drowsiness. • Some confusion has arisen from the m;inner in which this disease a\iiirri/thc7na liavc been viewed in relation to each other, and ill which both liave boon classed. l'"or, while I admit, with Dr. fioon, that the term erysijjelas has been loosely employed in medical writings, yet I con. ceive that it will not add to the precision of our know- ledge to remove certain of the varieties of erysipelas to the genus erythema, where their local characters are ehielly considered, and their more important constitu- tional and vital relations arc overlooked. ERYSIPELAS — General DEscnirTioN. anxiety at the prarcordia, genera! lassitude, and pain or aching of the limbs; anorexia, nausea, or vomiting ; thirst, and heat or dryness of skin. The tongue is generally loaded, and subsequently dry ; the bowels are constipated, and the motions offensive ; the urine is turbid or saffron-coloured ; and the pulse full, soft, frequent, sometimes broad and compressible, and often oppressed or irre- gular. The disease generally runs its course, in its more acute forms, between the seventh and . fifteenth day. It is sometimes extended to the twenty-first, but seldom beyond, unless in cases of relapse or metastasis, or when it assumes certain anomalous forms, or occasions organic changes of subjacent or internal parts, which pro- long the fever and increase the danger. 3. -B. Erysipelas presents phenomena which are peculiar to it, and distinguish it from phleg- monous inflammation, on the one hand, and from the inflammatory action attendant on rheumatism and catarrh, on the other. — a. The characters of erysipelatous inflammation are as follows : — a. The pain is peculiar — is tensive, burning, or stinging ; is not severe, but is diflTused throughout the "inflamed surface, and is occasionally remit- ting.— ^. The rfdHfss is not intense, as in phleg- mon ; but is either pale, rose-coloured, or of a pale yellowish hue — arising, seemingly, from a more copious and diflfuse deposition of serum, slightly tinged with a little blood. The redness always disappears on pressure, but quickly re- turns when pressure is removed ^ it is of a deeper red when the attendant febrile action is of a sthenic kind; and of a more livid hue when the vital powers are much reduced.— y. Tumefaction is always present, and is sometimes very remark- able, owing to the effusion of serum into the sub- cutaneous cellular tissue. It is, however, diffused, never acuminated or convex ; but sometimes hard or brawny, as in the sthtenic or phlogistic va- riety ; and occasionally soft and boggy, as in the oedematous or asthenic variety, or when the ad- jacent cellular tissue is affected or suppurating. 4. b. Erysipelas is seated chiefly in the integu- ments ; but it presents various modifications, according as the more superficial or more internal tissues of the skin are especially diseased. Where the cutis vera is the principal seat, the cellular tissue underneath is also materially affected ; it being usually infiltrated with serum, tumefied, and sometimes inflamed to a very considerable depth in some instances ; whilst the more super- ficial ca'pillaries likewise partake in the disturb- ance. \Vhere, on the other hand, the rete mu- cosum and papillary tissue are the chief seat, the disease is commonly accompanied with vesication. When this occurs, or when a discharge from the surface, or free exfoliation of the cuticle, takes place, the severe affection of the subjacent cel- lular tissue very rarely is observed. 5. c. I'^rysipelatous inflammation has always a tendency to spread to adjoining, and occasionally even to attack remote, parts. As long as the me- tastasis, or vicarious affection of distant parts, is confined to the integuments, the primitive form and nature of erysipelas is retained ; but as soon as it has a])parcntly attacked internal organs, which is sometimes the case, owing to their pre- existing disposition and morbid conditions, and to the operation of superadded causes, then the afTection of the skin disappears, and the super- ERYSIPELAS — PAnricuLAn Description. 819 inJuced Intevrral disease occasions the symptoms of an idiopathic malady, with more or less of the constitutional disturbance characterising the erysi- pelatous eruption, particularly those which relate to the vital energies and powers of resistance. 'J'iius, inflammations of internal parts, as of the serous or mucous surfaces, may displace, or be vicarious of, the erysipelatous disease of the skin ; but such inflammations will still retain peculiar features, and differ from idiopathic or true phlo- gosis of those parts ; the depression of the powers of life, the morbid condition of the circulating fluids and of the excretions, characterising erysipelas, at- tending also upon them, often in increased grades. 6. d. Like other inflammations of membranous parts, erysipelas generally assumes an acute form ; and, in this respect, resembles phlegmon : but difters from it very materially as regards the nature of the constitutional disorder, especially the morbid state of the circulating fluids and of the excretions, and the manner of termination • — particularly the slow convalescence ; the per- sistence of congestion — especially of the venous capillaries ; the desquamation of the cuticle, and the tendency to relapse. 7. e. The characteristics of erysipelas arising from the texture in which it is seated, are — the dryness, the stinging heat, the peculiar shining appearance of the surface, the burning and itch- ing, and the frequent elevation of the cuticle into vesicles, or its successive desquamation. Ail these indicate — 1st, suppression of transpiration, with increased circulation ; 2d, morbid sensi- bility of the cutaneous nerves; 3d, a preternatural secretion of serum beneath the cuticle ; and, 4th, an altered state of the reproductive or plastic function of the rete mucosum. 8. /'. When erysipelas has once attacked tlie frame, there rejnains a certain morbid diatbeds, disposing to renewed attacks at distant intervals. The same property is also evinced by several non- contagious affections of the skin ; and is most probably owing to acquired constitutional dis- position, or rather, to a weakened state of the digestive and excreting or alimentary organs — to a latent state of disorder arising out of the remote causes of the disease, and heightened or rendered more persistent by its attack. 9. fr. The causes of this malady are fre- quently the same as those of low forms of fever, catarrh, and rheumatism ; for, like them, it generally proceeds from peculiar states and vicis- situdes of weather and of the atmosphere ; espe- cially cold, moist, miasmatous, and foul con- ditions of the air, acting upon a system already disposed to their influence by depression of vital power, or by the accumulation of morbid or effete matters in the circulation, owing to defective action of the excreting organs, to unwholesome diet and regimen, or to prolonged disorder of the prima via. 10. h. Erysipelasis generally preceded and ac- companied by more or \ess fever, according to the situation of the part affected, the sensibility and irritability of the system, and the character of the prevailing epidemic constitution. It should never be considered apart from theattendant state of con- stitutional disturbance, — from the manifestations of vital power, and the conditions of the cir- culating fluius, and secretions, — of all which the local affection is merely an extensive and im- portant efl'ect ; but one which reacts upon these states and conditions, whence it chiefly derived its origin, or at least its peculiar characters. The modifications of the attendant fever depend chiefly upon the constitution and pre-existing state of the assimilating and excreting organs, upon the prevailing epidemic influence, and upon the weather and season. Thus, the fever more com- monly approaches the inflammatory type during cold and dry seasons, or in winter and spring ; whilst the more adynamic forms, with predomi- nance either of the gastric, bilious, or nervous states, are most frequent in summer and autumn. 11. II. Particular Description. — Erysipelas presents various modifications, according — 1st, to the part affected ; 2d, to the nature and form of the local changes ; 3d, to the states of constitutional disturbance with which these changes are asso- ciated, and on which they are dependent ; and, 4th, to the causes which have produced it. 12. A. Madif cations as to the part affected. — The sensibility of the part in health, and its vital relations, especially modify the consentaneous disturbances of the sensifeious and vital functions generally characterising this malady. If it at- tack iheface, commencing in one cheek, it gene- rally soon extends to the other; and in a short time to the forehead and scalp, producing more tumefaction than almost in any other situation, owing to the efl^usion of serum in the subcutaneous cellular tissue. The eyes are closed or prominent ; the no.-e is distended ; the ears are red, shining, and burning. On the second or third day, the whole head and face are often enormously distended, presenting a yellowish or sub-livid redness. — Also, when the disease commences in the scalp, owing to punctures, bruises, or contused wounds, the affection of the subcutaneous cellular tissue is very great, frequently followed by dift'used sup- puration, and disease of the fibrous tissues adjoin- ing. But, whether originating in the face or in the scalp, the greater the extent and intensity of the affection of these parts, the more are the func- tions of the brain, of the circulation, and of secre- tion disturbed. Hence the violent headach, tinnitus aurium, delirium, sopor, convulsions, coma, &c. ; the parched and dark tongue ; the morbid state of tlie evacuations ; and the dis- turbance of respiration. 13. When erysipelas attacks the face, it some- times affects the mouth and fauces, extending in some instances to the pharynx and larynx, inter- nally, and down the neck to the chest externally. An interesting case of tlris kind was attended lately by JNIr. Bvam and myself, where the enor- mous tumefaction of the neck and throat, with the affection of the larynx and trachea, increased by the constriction produced by the integuments suri'ounding the neck and throat, caused suffo- cation in a few hours. This extension of the disease to the fauces and tliroat, not infrequently occasions a species of consecutive croup, as stated in that article ( § 18. d.) : it may also occur, when ths scalp is afl^ected ; but, in this case, the dis- ease generally extends down the neck and back, even to the loins. The disposition to spread thus entensively, and to affect subjacent parts, is most remarkable when the pulse is frequent, and vas- cular action greatly excited, at the same time that vital power is much depressed, the functions of excretion impeded, and the blood morbid. 3 G 2 820 ERYSIPELAS — Particular Description. 14. In other parts of the body, the symptoms are generally not so severe. The pain, however, is very great when the disease attacks the wamm(e during lactation, or when it extends to the organs of generation. In these situations, it frequently implicates the subcutaneous cellular tissue and adjoining glands, and thus closely approximates in seat and nature to the primary form of spreading inflammation of the cellular tissue. When it occurs in the latter situation, in children between one and six years of age, it often proves fatal, either from this circumstance, or from sloughing ulceration. Where the extremities only are af- fected, there are generally less pain and constitu- tional disturbance than in other cases. 15. -B. Modifications of the local affection. — The changes which take place in the external seat of disease, may be classed under four varieties : the glabrous, vesicular, crustaceous, and deep-seated. — a. The glabrous local aflTec- tion consists in a diffused or plane and smooth tumefaction of the skin, of a rose or yellowish redness, sometimes verging to a sub-livid hue. — b. The vesicular form is attended with bulla?, or blisters, in parts of the inflamed surface, resem- bling the vesicles raised by cantharides. Some- times they are numerous, small, and discrete p/i/i/c- tena- ; at other times confluent, and forming very large hulLe, containing a yellowish, sometimes dark, sanguineous, acrid serum, effused between the rete mucosum and cuticle, which it elevates. These vesicles continue to appear during the course of the disease ; are accompanied by an unpleasant tension, itching, burning, or pain; and, instead of diminishing, often increase, the in- flammation and fever. — c.T\\e. crustaceous iovm arises from an early rupture of the cuticle, and escape of the lymphatic serum effused beneath it, which exposure to tlie air forms into crusts, and under which an acrid fluid collects, and irritates, or even ulcerates the skin. — d. In the deep-seated and tumefied, the cellular and other subcutaneous tissues are affected, either by oedema, or by phleg- monous or diffusive inflammation, tending to dis- organisation. Whilst the supeificial parts of the integuments are the chief seat of the affection, in the preceding varieties, the tissues underneath are principally diseased in this, particularly the cel- lular and adipose ; and they present every shade of morbid action, from simple passive oedema, to inordinate vascular excitement— from the lowest state of asthenia, to the highest degree of vital action — either passing rapidly into suppuration, or into disorganisation, or spreading extensively in the course of the cellular tissue, and involving other adjoining parts, as shown in the article on Diffusive infiummation of this Tissue. It is gene- rally observed in this associated or deep-seated malady, that the skin is but slightly altered, or that the morbid action in it diminishes, as that in the subjacent parts increases, especially if the latter be of a diffusive or septic kind. 16. C. Modifications connected with the con- stitutional disturbance, — The forms which the disease assumes, chiefly result from the states of the nervous system of the assimihitiiig and ex- creting organs, and of the circulating fluids, and from the temperament and habit of body. 'J'hese modify the febrile action, as well as the local affection, aided by the existing grades of consti- tutional power and vital resistance. Erysipelas consequently presents every intermediate shade between high vascular action with simply dimi- nished vital power, and low vascular action with great depression of the vital energies, as respects both the part chiefly diseased, and the system in general. — a. As soon as the morbid action in the skin passes a certain height, it generally extends to the subjacent cellular tissue ; and if it occur in young, robust, or plethoric subjects, or if the constitutional powers be not much reduced, or the nervous system' not materially exhausted or oppressed ; or if the functions of the digestive and excreting organs be not altogether over- powered ; then the- disease assumes more or less of the sthenic or phlegmonous character, both as to its local appearance and the attendant fever, and has a marked tendency to pass into suppu- ration, occasionally with destruction of the sub- cutaneous cellular and adipose tissues. — b. When the disease is attended by signs of accumulated sordes in the prima via, with nausea and vomiting, and a morbid state of the secretions, particularly of the biliary secretion — characters which it often presents, — it has received from Con- tinental pathologists, the appellation of gastric or bilious eri/sipelas. — c. If it present great depres- sion or disturbance, especially of the cerebro- spinal nervous functions, with a pale, evanescent, and changeable state of the part aflJccted, and imperfect secretion and excretion ; and if de- lirium, coma, subsultus, &c. supervene; or if the local affection spreads rapidly, or if it entirely disappears, and is followed by internal disease ; it has been called 7iervous eri/sipelas, or it may be said to be complicated with febrile disturbance of the nervous kind. — d. If, owing either to exces- sive morbid action over vital power, or to a faulty state of the system at the time of attack, or when it supervenes upon remittent or continued fevers, or upon any cachectic malady, or in aged or broken-down constitutions, it extends to the sub- cutaneous structures, and gives rise to oedema, or terminates in softening or disorganisation of these parts, it has received the name of a dematous, septic, or gangrenous erysipelas. This state of the malady is generally connected with defective assimilation and excretion, with an impure state of the cir- culating fluid, and with deficient vital power. 17. D. The causes which dispose to, or excite, the disease, have also great influence in modifying its characters, both local and general. When propagated by infection, it is prone to assume a complicated state, or to be associated with in- flammation of the throat and pharynx of a most dangerous character, owing to its disposition to spread to the larynx and trachea ; and with dif- fuse and gangrenous inflammation of the subcuta- neous cellular tissue. A similar complication is also observed during certain epidemic constitu- tions, or when the disease has been occasioned by the contact of animal matters in a state of decom- position, or by other septic agents. In these cases, the tumefaction is often great ; and, although vascu- lar excitement may be very remarkable, vital power is much depressed, and speedily overwhelmed ; owing chiefly to the morbid state of the circulating fluids, or to the contaminating and septic operation of these causes. 18. III. Division of Erysipf.las. — This disease has been divided by authors, according to its various states, into febrile and non febrile ; ERYSIPELAS — Simple — Complicated. 821 the stationary and the erratic ; the benign and 7naUgnaiit ; the acute and chronic; the periodic or habitual, and the accidental ; the sporadic and epidemic; the idiopathic and sywptomalic ; and the primary and secondary ; to which may be added, the internal and external. As to all these general divisions, it is only necessary to remark that, by Idiopathic erysipelas is understood that condition of the disease whicli arises from the direct impi-ession of the causus on the skin, as from vicissitudes and epidemic states of the air, chemical stimuli, morbid effluvia, poisonous mat- ters, 6cc. ; and by Symptomatic, is meant the ex- ternal manifestation of internal disorder, as of impeded secretion and excretion, the accumu- lation of morbid excretions in the prima via, and an impure state of the circulating fluid, either from interrupted elimination of effete matters, or from the absorption of morbid secretions. As to the existence of Internal erysipelas, I may observe, that it cannot be allowed otherwise, than that iuflammatory metastasis to internal organs, par- ticularly the mucous and serous membranes, oc- casionally occur ; the internal disease taking place either in consequence of the suppression or disappearance of the external affection ; or the latter ceasing to exist, owing to the commence- ment or progress of the former. But, although the internal disease may retain the constitutional peculiarities attendant on the primary afl'ection, yet its distinctive characters can no longer exist when it attacks a differently orgaiii-ed structure, from that to which they are chiefly owing. It is in such circumstances, and when internal inflammations supervene in broken-down consti- tutions, or from interrupted excretion and a morbid condition of the circulating fluids, as in the course of fevers, and in the puerperal state, that J. P. Frank and many other writers contend for in- ternal erysipelas; similiarity of morbid action, local and constitutional, although affecting dif- ferent structures, being considered by tliem as sufficient to warrant the appellation. 19. The Division adopted by VVillan and Bateman — viz. 1. Phlegmonous ; 2. (Ede- matous ; 3. Gangrenous; and 4. Erratic — is faulty, inasmuch as the termination in gangrene is peculiar to no one state, but may occur in either the first or second variety. — Dr. Good associates certain varieties of erysipelas, with chil- blain and intertrigo, under the generic term of erijthema. — Biett, Cazenave, and Schedel treat only of the True and Phlegmonoid. — One of the best and simplest divisions is by MM. Ali- liERT and Rayer, into (a) the Simple, (6) the Phlegmonous, and (c) the (Edematous; but it is defective, as it excludes certain states or com- plications which should not be overlooked, wlien treating of this disease. — Mt-Jamhs adopts a nearly similar arrangement, substituting merely the term superjicial, for that of simple, employed by Rayer.* * Synopsis qfthe Arrangement of different States of Ery- sipelas adopted by the Author. Species I Simple Erysipelas ; E. Simplex. Var. A. — Benign or Superficial Erysipelas ; E. Sim- plex Benignum. Var. B. — Acute Erysipelas ; E. Simplex Acutum. Species II. — Complicated Erysipelas; E. Coinpli- catum. Var. A With (Edema of the Subcutaneous Cellular Tissue. Var. B. — With Infiammation of the subjacent Parts. i. Simple Erysii-elas — E. Simplex — E. Ex- anlhemalicum (Rust). — Febris Erysipelatosa (Sydenham, IIiedenbrand). — E.SnperJiciale (James). — E. Verum seu Legilimum (Nau- mann). 20. CnARACT. — Spreading inflammation of the skin, with soft and slight tumefaction, redness, stinging heat, fever, and frequently iiith vesication. 21. A. The mild, benign, or superficial form, is attended by little constitutional disturbance, or only by slight inflammatory fever, or disorder of the digestive organs ; the surface of the skin is of a pale or rose red ; vesication very seldom, or sparingly, occurs ; and occasionally, after spread- ing to, or affecting, adjoining parts of the surface, and disappearing from those in which it first commenced, it terminates in resolution in the course of a few days, especially after the disorder of the digestive and excreting organs, on which it is usually dependent, has been removed. 22. B. The acute states are attended by more severe local and constitutional symptoms (§2.). They are preceded by marked disorder of the secreting and excreting functions, and are accom- panied by smart febrile action. The skin is ge- nerally red, hot, diffusely tumefied, and covered with small vesicles, and, in various parts, with large bulls. These generally break soon after their appearance, or about the fifth or sixth day of the disease, the fluid drying into crusts of va- rying colour and thickness ; the surface under* neath either healing rapidly, or becoming exco- riated by the acrid serum effused beneath 'them. In this latter case, the duration of the disease is longer, and the subsidence of the symptoms more gradual, than in the former. 23. C. The termination, which is usually by resolution, is preceded by a mitigation of the symptoms, after having continued in full force for three, four, or five days; and is attended by exfoliation of the cuticle and of the crusts ; re- solution generally taking place more rapidly in this, than in any other, disease of the integuments. But sometimes the sudden disappearance of the inflammation is followed by its supervention in some other part of the external surface — Erratic Erysijielas ; and more rarely by asthenic inflamma- tion of some internal part — Metastatic Erysipelas, These occurrences are most frequent when the local affection suddenly subsides, although the con- stitutional disturbance continues, and effete or morbid matters are still retained. The evacuation of copious offensive stools, or of urine depositing a large sediment, antecedently to, or about the time of, the disappearance of the local affection, is a sure indication of a salutary crisis. ii. Complicated Erysipelas — E. Cojnplicatum, 24. Charact. — The inflammation of the inte- guments of the kind above defined (^ 1. 15.), asso- ciated ivith disease of the adjoining structures, or ivith prominent disorder of internal organs, 25. This species is very varied, owing to cir- cumstances already enumerated, but chiefly to tjlie severity of the attack, to its situation, to the states of the internal functions and of the con- stitutional powers, and to the exciting causes. Indeed, these latter circumstances mainly deter- mine the character of the former. The morbid J'ar. C. — '\\'UhInfla7iimatory Disease of the Throat,& c. I'ar. D With Xeivous or Cephalic Affectio7i. far. E. — With Gastric or Bilious Disorder. 30 3 822 ERYSIPELAS — Complicated. associations, or more complicated states and severe degrees, of erysipelas, are those in which adjoining tissues suffer, or internal organs are disordered, at the same time that the patho- gnomonic phenomena — the inflammation of the integuments — continue manifest. For, although metastasis to internal viscera, or the inflammation of other parts than of the skin, occurring in ca- chectic habits, or in those who are subject to this disease, may, vvith great propiiety, be viewed as erysipelatous, as respects the nature of the attendant constitutional affection, yet neither of them can strictly be considered as such, as re- gards the part affected. The erysipelatous cha- racter, however, of the affection, under both circumstances, should not be overlooked ; as thereupon ought to depend, in a great measure, the choice of remedies. 26. A. With OLdema, or Effusion into the Sub- cutaneous Tissues — E. (Edemutodes of authors. — a. This state of the disease may be consecutive of the simple varieties, or it may accompany them from the commencement, when they attack the face, or the vicinity of the organs of generation ; effusion, in these case?, always taking place in the loose cellular tissue. It often, also, su- pervenes in the progress of anasarcous swellings. Its primary form occurs chiefly in old persons, and broken-down constitutions, consecutively of chronic visceral disease, and in the leucophleg- matic and dropsical diathesis ; the affection of the skin and subjacent cellular tissue being nearly coetaheous. The external surface is of a pale or yellowish red, inclining to brown ; generally smooth and glossy ; and it is seldom tense. It is but slightly hot or painful ; and sometimes neither the one nor the other. 'J'he swelling in- creases gradually, extends slowly, and pits sliglitly on pressure. Vesications are not common ; and the vesicles, which are small, numerous, and flattened, usually appear from the third to the fifth day ; they break in a day or two, and are replaced by thin crusts. In the more active states, a sero-puriform, or puriform, fluid infil- trates the cellular tissue, or is discharged from the vesicated surface. The genitals, the face and scalp, the thighs and legs, are chiefly the seat of this variety. Dropsical limbs, especially when the cuticle is cracked or abraded, or after scari- fications have been made in them, are often af- fected by it : and, in these circumstances, there is a marked disposition to gangrene. 27. /). CEdemutous erysipelas teimitiates—li^t, in resolution, with absorption of the effused fluid; 2d, in suppuration; and, 3d, in softening, sloughing, and gangrenous destruction of the part. — Suppuration occasionally takes place ; but is generally of an irregular or diffusive kind, extending in tlie couisc of the vessels, and be- tween tendons and muscles ; is preceded by a boggy state of the swelling ; and is often attended by disorganisation of portions ot tiie cellular membrane. — Gangrene is indicated by severe pain ; and a red and glossy state of the surface, j)assing into a livid or leaden hue. 29. 7i. With Injliimmatiim of the Subcutaneous Structures — Er. Fhlecrmonosnm vel Phlegmn- nodes, Auct. var. ; Diffuse Phlegmon, Dupuy- TitEN ; Er. Spurium, Pseudo-Erysipelas, Rust. — This is a most important and often dangerous disease; especially when epidemic, or propa- gated by infection. It is very varied in form and seat ; and presents every grade of activity, from the passive or cedematous state, just de- scribed, to the most acute grades that rapidly pass into gangrene (§31.). — When it occurs sporadically, its local character is that of "dif- fused phlegmon;" the attendant fever being of an inflammatory kind, and preceded by rigors. In this case, vascular action is more acute ; the swelling is greater and more circumscribed ; the pain and burning more remarkable, and more pulsating ; the redness deeper ; tlie temperature higher ; and the disposition to pass into suppu- ration greater, but to change its situation less, than in other circumstances. Where the symp- toms are very acute, the subjacent cellular and adipose tissue frequently are profoundly affected ; the fasciae, the intermuscular substance, and even the fibrous structures, becoming inflamed. In such cases, disorganisation of the cellular and adipose tissues often rapidly supervenes ; the part passes from a brawny and tumefied, to a flaccid and boggy, state; and the attendant fever changes to a low or adynamic form. When occurring epidemically, or from infection, the local and constitutional symptoms are more severe ; vital power and resistance are diminish- ed; and the disease is often complicated with a very dangerous affection of the throat and adjoining parts. This variety may be divided, as suggested by M. Rayek, into three grades, 29. a. In the Jirst, after rigors, and in con- nection with the constitutional symptoms described above (§2.), tingling, heat, and redness, fol- lowed by hard tumefaction of the part, begin to appear. A stingingpain, tension, and burning heat are complained of in the seat of swelling ; which is diffused, hnrd, and deep-sealed. After pressing the surface with the finger, the redness returns more slowly than in the superficial and simple disease. The lymphatic glands often become inflamed or enlarged ; and febrile action is fully developed. If, about the fiftii or sixth day, the skin be less red and tense, or covered by furfuraceous scales, and the swelling subsides, resolution has com- menced. (Edema of the cellular tissue, however, sometimes remains for two or three days. But if the pain, about this period, become puls- ating, suppuration in one or more parts is in- evitable. The abscesses thus formed generally give issue to well-digested pus, and heal in a few days. 30. /). In the second grade of this variety, in- flammation is more extensive ; and the redness, heat, pain, and fever are greater. If the disease be not arrested, abscesses form, very insidiously, from the sixth to the ninth day, or even earlier; or a sero-puriforni fluid infiltrates the cellular tissue, extending between the muscles and under the integuments ; and, upon free openings being made, di-sorganiscd portions of this tissue are discharged with the puriform or ichorous matter. Fistulous cavities fietpiently are formed, giving issue to a foetid and ichorous pus. — Sometimes tlie skin is tiiinned or detached, and falls within the margin of the ulceration (Rayer). In these cases, the stomacii and bovvels frequently become inilable ; and the patient dies, either from the exhaustion occasioned by diarrhoea, or by the ex- tensive suppuration and disorganisation of the cel- 'ulav tissue ; or from the absorption of the morbid ERYSIPELAS —Complicated. 823 secretion of the part, and the consequent conta- j infiltrated, and tumefied. Most commonly, the mination of the circulating fluids ; or from those inflammation commences, with or after rigors in causes combined ; severe nervous symptoms (§ 35.) being either superadded, or taking the place of this disorder of the prima via. 31. c. The third grade presents a still more acute series of symptoms. In two or three days, the inflammation of both skin and subjacent parts reaches its acme. The skin is tense, smooth, and shining; and of a deep or dusky red, wliich is hardly a moment dissipated by the pressure of the finger. The swelling is profound, very painful, intolerant of pressure, and dittused. In this grade, and sometimes also in the preceding, the inflammation extends to, and beneath, apo- neurotic expansions ; and occasionally even to the periosteum, especially when the head is af- fected. The pulse is sharp and frequent : the | tongue is loaded and furred ; and the excretions are offensive. There are, also, great thirst, restless- ness, sleeplessness, increased fever towards night, and delirium. About the fifth or sixth day, the inflamed integuments assume a violet hue, lose their sensibility, are softened, and covered by phlyctenai filled with a reddish serum. Soon afterwards ecchymoses and sloughs form ; and at the same time, an ichorous suppuration, with destruction of the cellular tissue, is established in the subjacent parts : — Gangrenous Erysi/pelas. In favourable circumstances, the sloughs are de- tached, and the parts beneath assume a healthy character ; but more frequently the patient sinks, from the absorption of morbid matter causing con- tamination of the fluids, or inflammation of veins ; with affections of the brain, of the stomach, and of the bowels, as in the more severe forms of ady- namic fever. 32. d. The Jirst and second grades of this variety often occur in the scalp, face, and neck ; and are frequently farther complicated with ceiebral af- fection, especially delirium, coma, &c. : or with gastric and bilious disorder ; and with inflammalion of the fauces and throat. The third grade, as well as the first and second, is met with chiefly in the extremities, particularly after contusions, fractures, and punctured wounds, and is seldom preceded or attended by rigors. When occurring epidemi- cally, as from infection, the constitutional distur- bance is greater and more dangerous ; the pulse weaker and more frequent ; the inflammation of the skin generally less, and thatof the cellular tissue more remarkable, and more nearly approaching, if not altogether identical v/'ilh, diffusive inflamma- tion of that tissue (see this article), than in other circumstances. 33. C. With severe injiammatory Affection of the Throat and Larynx. — This afteclion may ac- company any of the forms of erysipelas attacking the face ; but it is most frequent in the phlegmo- nous variety, particularly when it appears epi- demically, or from infection. Of this, the papers of Dr. Stevenson, Mr. Arnott, Dr. Gibson, and Dr. M'Dowel, furnish interesting illustrations. In some cases, the extension of the disease over the nostrils and lips, to the fauces and pharynx, may be traced. In others the afl^ections of tlie throat and face are almost coetaneous ; and in the more severe cases, the face, throat, and integu- ments, down to the chest, with the cellular sub- stance underneath, and surrounding the phurynx, trachea, and glands, are more or less inflamed, the fauces or pharynx ; is of a dusky hue ; ex- tends along the nasal surfaces, and afl^ects the face, scalp, &c. A sero-albuminous exudation is either partially or rarely seen ; the croupy symptoms, which sometimes supervene upon this complication, being owing rather to the exten- sion of the inflammation to the mucous surface of the larynx and trachea, and the infiltration of the subjacent and surrounding cellular substance, than to the exudation of lymph. In a few cases of the complication — one of them in the prac- tice of my friend, Mr. Byam, at the time of writ- ing this — the cellular tissue of the throat, and of the whole neck, was so distended, that the in- teguments appeared girt around them with the utmost tension ; and, in this instance especially, the respiration and cough were as distinctly croupal as in idiopathic croup. I have seen, in some cases of this kind, the constriction of the integuments so great, that incisions of them — as first recommended by Mr. Copland Hutciiison — were required, to arrest fatal cerebral conges- tion or immediate strangulation. The constitu- tional disturbance in this state of disease is most acute; and, at the commencement, attended by high action with deficient power. As the dis- ease proceeds, the pulse becomes more and more frequent, unequal, irregular, soft, or small ; deglutition difficult or impossible ; respiration sometimes suffocative, wheezing, or sonorous and croupal, with strangulating cough ; and the ex- cretions are always foul, morbid, and offensive. Delirium, coma, or sinking, preceded by rest- lessness or anxiety, or disorder of the alimentary canal, are also generally observed. 34. This complication may terminate, in the most acute cases, in the course of three or four days — 1st, in suffocation, from the extension of the disease to the larynx and trachea, or from the inflammation, infiltration, and tumefaction of the cellular tissue surrounding these parts ; — 2d, in sphacelation; — 3d, from the severity of the superinduced cerebral affection, in connection, sometimes, with congestion of the lungs; — and, 4th, the symptoms may abate under very de- cided treatment ; and, as in the less severe cases, may pass on to resolution, or to the formation of purulent collections, either near the eyes, or about the angle of the lower jaw, or side of the neck. The formation of matter is generally in- sidious ; this fluid being diffused throughout the cellular tissue, and frequently deep-seated. When this is the case, the result is usually fatal ; owing to the partial absorption of the matter, and to the effects caused by it on important parts in the vicinity. 35. D. With Nervous or Cephalic Affection — Erysipelas Nervosum, of authors. — This is a common complication, wh.ere the disease affects the face or scalp, particularly the cellular sub- stance surrounding the eyes (Piorry) ; occurring generally between the third and sixth days ; and in the course of other varieties, attacking persons of weak constitutions and susceptible nervous systems, especially when about to pass into dangerous exhaustion, or gangrene, or pre- vailing epidemically. In the former circumstance, there is evidently superinduced inflammatory irritation, or excited vnscular action, in the mem- 3 G 4 824 ERYSIPELAS — Lesions in Fatal Cases — Diagnosis. branes of the brain, analogous to the vascular excitement of the skin, often occasioning an in- creased exhalation of serum : hence the delirium, passing frequently into coma. In the latter cir- cumstance, the cerebral disturbance is the result rather of depressed vital power, manifested espe- cially in the cerebral functions, and of the morbid changes in the blood, than of inflammatory action. The pulse is frequent, but variable as to fulness and power. The tongue is at first loaded, red at the point and edges, and afterwards dry in the middle, and of a brown or dusky hue. The excretions are suppressed or impeded ; and, in the worst cases, particularly towards the close, are passed unconsciously. Tremors, subsultus of the tendons, floccitation, &c. are then also observed. A fatal termination occurs generally from the seventh to the fourteenth day, or later. A bilious diarrhoea, or copious faaculent and offensive stools ; a free discharge of urine de- positing a copious sediment ; and a general, warm, and copious perspiration ; are favourable occurrences. 36. E. With Gastric and Bilious Disorder. — The bilious nature of erysipelas was strenuously insisted on by Stoll, Dessault, aud others. Antecedent disorder of the digestive and assi- milating organs is more or less evident in all the varieties, but especially in this, wliich is of com- mon occurrence during summer and autumn, when the digestive mucous surface and biliary apparatus are most liable to be diseased. It is generally attended by manifest signs of accu- mulated sordes and morbid secretions in the pri- ma via, and of an increased secretion of acrid bile, especially when the disease is epidemic at the seasons just mentioned. 37. F. Erysipelas may, moreover, be com- plicated with inflammatory action of the mucous surfaces, analogous to that of the skin, giving rise to a form of bronchitis or gastritis. Where it is connected with inflammatory sore throat, it sometimes extends along either the trachea, or the oesophagus, or even both, until the lungs, or the stomach and bowels, are aflPected ; and, oc- casionally, along the Eustachian tube, to the ear ; it thus becoming complicated with one, or even more, of these affections. This connection, first distinctly pointed out by J. P. Frank, has more recently been insisted upon by Beoussais, El- i-ioTSON, and others. Fkan'k alludes to instances in which erysipelatous inflammation extended from the pudenda, along thevaj;ina, to the uteru«, and even to the bladder. Erysipelas may be further complicated witii injlanvnuiion of tlie lipn- phntics, particularly when caused by breach of Hurface ; or with phlebitis, when consequent upon injury, or when it has proceeded to suppuration. 38. G. Erysipelas may occur in the course of continued and remittent fevers ; and it may appear during convalescence from any of the exanttiemata. — In the first of these associations, it generally presents an adynamic character, with nervous or with maiignant symptoms ; frctjucntly attacks the face, throat, and scalp ; or the parts j)ressed upon in bed, or irritateil by the evacu- ations ; and is especially dis])osed to gangrene. When it sujjervenes upon remittents, it often assumes a bilious or gastric form; and in these, as well as in exanthematous fevers, it may prove a salutary crisis, if the pulse do not rise in fre- quency ; and if the cerebral functions remain undisturbed. In crowded sick wards, and in lying-in hospitals, it often occurs in the progress of other diseases, with whicli it consequently becomes complicated. But it is a most danger- ous circumstance ; as it is, in those cases, caused by an infected or impure air, which, favoured by the depressed state of vital power, or by imper- fect excretion, has contaminated the circulating and secreted fluids. 39. IV. Lesions in Fatal Cases. — When the cellular tissue has not been severely affected, the injection of the integuments subsides considerably after death ; and hence the redness of the exter- nal surface, as well as that of the throat, has often nearly or altogether disappeared. In addi- tion to infiltration of the subcutaneous tissues with serum, or a sero-puriform matter, and occa- sional disorganisation or gangrene of these and of the integuments, various internal lesions are com- monly observed. The blood in the large vessels and cavities of the heart is frequently semifluid; and the veins proceeding from the part chiefly affected, are often inflamed, or contain pus; as first observed by M. Ribes, and confirmed by M M. Dance, Arnott, and by my own observations, especially when the disease has been complicated with diffuse suppuration of adjoining cellular parts. In cases that have been attended by cephalic affection, the membranes of the brain are sometimes injected, or inflamed, and the arachnoid opaque, with serum effused between them, and in the ventricles; but, as M. Piorry has shown, these lesions are often not observed in this complication. Where the throat has been affected, the fauces, pharynx, and asophagus are of a dark or dusky red, or of a livid or brown tint; much softened, sometimes with small patches of dark lymph on their surfaces ; and the subjacent tissues infiltrated with a bloody serum, or with a sero-puriform matter. These appear- ances occasionally extend to the larynx and trachea, the submucous tissues being cedema- tous, or infiltrated with similar fluids. — In cases that have been associated with bronchial or pul- monary disorder, the lungs are congested with a dark semifluid blood ; the bronchi are of a dark red or brown colour, are injected, and often con- tain a frothy and bloody fluid ; portions of the lungs being oedematous, and otiiers partially hepatised. — ^ The mucous surface of the stomach and intestines is generally injected, of a deep or dark colour, often softened, and, where the bowels had been much afl^ected, abraded, or inflamed, especially in the cajcum and rectum. The liver and spleen are seldom found in a healthy state, particularly in persons advanced in age ; but they present no lesions peculiar to this complaint, excepting that those usually resulting from intem- perance are most frequently observed. 39. \'. Diagnosis. — The antecedent consti- tutional disturbance, with excited vascular action and drowsiness ; — the dull or yellowish red, or rose-colour, of tiie integuments, terminating in an irregular, but well defined margin, and disappear- ing, momentarily, on pressure; — the pricking, stinging, and burning heat and pain of the part, sometimes with irreguhir vesications ; — the slight, plane, and diffused tumefaction, or the greater swelling and diffused affection of the cellular tissue in connection with the inflammation of the ERYSIPELAS — Prognosis — Causes. 825 skin; — its rapid extension, or delitescence, or change of situation ; — its almost uniformly acute or subacute character, as respects both the local and constitutional symptoms; — its manifest as- sociation with disorder of internal organs, par- ticularly of the digestive, assimilative, and excret- ing viscera, and of tiie brain and membranes ; and its dependence upon a change in the circulating fluids; — its indispostion, owing to the states of vascular action and of the fluids, to confine or limit itself; and the inability of forming coagu- lable lymph, owing to these causes; — its infec- tious character under circumstances favourable to the manifestation of this property, more espe- cially when the constitutional affection is of an adynamic kind, or when attended by sore throat ; — the readiness with which it is repelled, and thrown in upon vital or important viscera ; — its rapid termination in, or transition to, resolution and desquamation, or suppuration, or gangrene; — and, finally, the insidious and diffused manner in which purulent matter forms in the cellular tissue, when suppuration takes place ; are suf- ficient to distinguish the disease from erythema on the one hand, and from phlegmon on the other. 40. VI. Prognosis. — -There are various circum- stances which should influence our opinion as to theresults, in this disease ; and determine us to give a guarded prognosis on all occasions : — 1st, Its tendency to relapse or to recur, from slight or un- appreciable causes, or from errors in diet, &c. ; — 2d, Its disposition to become o^socia fed with severe or dangerous internal aflPections ; to disappear sud- denly ; and to be succeeded by them, especially diseases of the brain and its membranes, of the air- passages and lungs, of the digestive canal and peritoneum, and of the veins; — 3d, The age, habits, and previous health of the patient ; — 4th, I'he causes which produce it, and the character of the prevailing epidemic ; — 5th, The parts which it attacks, its particular form and complication, and the state of constitutional disorder accompany- ing it. 41. a. Recollecting that erysipelas is the ex- ternal expression of an internal or constitutional disease, we should consider the free manifestation of it on the external surface, with little or no af- fection of the subjacent or internal parts, and without any remarkable depression of vital power, as a. favourable circumstance, and not to be im- peded by external means. As long as it remains thus simple and superficial, and of neither a deep, fiery, nor purple colour, although it may be ex- tensive, and attended by vesication, it is not dan- gerous ; unless it affect the face and head, and be accompanied with cerebral disorder. If it follow the stings of insects, the application of acrid sub- stances to the skin, or external injuries, it is seldom attended by danger, unless in cachectic or aged persons, or those addicted to the use of spirituous liquors. Stationary superficial erysipelas is less to be dreaded than the erratic ; for, in the latter, there is greater risk of internal metastasis ; and the erratic character is often connected with serious changes in the nervous and vascular func- tions, or with latent internal disorder. 42. b. The risk of an imfavoiirahlc issue is generally great in proportion to the severity of the constitutional afifection, — to the adynamic or nervous character of the attendant fever, — to the depravation of the circulating and excreted fluids,— to the deepness and darkness of the colour of the afli"ected part, — to tiie severity of the cephalic disturbance, — to the extent and diffusive form of the inflammation and suppur- ation in the subcutaneous tissues, — and to the vital importance of the parts prominently asso- ciated in the malady. Great tumefaction of the throat, scalp, or face, with prominence of the eye- balls ; attendant disease of the fauces and pha- rynx, or of the respiratory passages and lungs, or of the stomach, intestines, &c.; tenderness at the cpigastiium, or over the nbdomen ; the disap- pearance of the external inflammation, and su- pervention of either of these, or of some other malady; and coma, jactitation, unconscious eva- cuations, &c. ; are dangerous occurrences. 'I'he frequent or habitual recurrence of erysipelas, particularly in persons advanced in life, indicates organic change in the liver ; and its appearance about the organs of generation, in them, and in ciiildren, and around the umbilicus of infants, or in cedematous and dropsical limbs, especially after scarifications, is very unfavourable. A similar inference may be drawn when it attacks the face and scalp, particularly of delicate, aged, or broken-down subjects; or follows severe in- juries or surgical operations; or appears during convalescence from dangerous maladies, and when it is not preceded nor attended by shivering. Epi- demic erysipelas, particularly in the crowded wards of hospitals, and during cold and humid states of the air, is attended by greater risk than sporadic cases. 43. VII. Causes. — A. There frequently exists a peculiar predisposition, or an erysipelatous dia- thesis, the nature of which has not been fully ascertained. It seems, however, to be connected with great irritability, or tenderness of the cuta- neous surface, and defective power of the capillary vessels and secreting surfaces and viscera. Females are much more predisposed than males, particu- larly at the period of menstruation, and after the epoch of its termination. The irritable, bilious, and piilogistic temperaments ; feeble, leucophleg- matic, and plethoric habits ; the gouty diathesis ; the autumnal, winter, and spring seasons; torpor or interruption of the biliary functions ; an habi- tually acrid and foetid perspiration ; unwholesome and low diet; addiction to spirituous liquors ; pre- existing visceral disease, general cachexia, and ex- haustion of vital or constitutional power; are the chief predisposing causes. J. Frank supposes that young persons and females are most subject to erysipelas of the face and head ; and the aged, to that of the extremities. Certain parts are more predisposed than others ; as the face, sexual organs, and lower limbs ; owing to the greater sensibility and vascularity of the former, and the liability of the latter to injury and external irritation. 44. -B. The exciting catises are — a. Those whichact locally, as injuries of the head and face ; contusions, wounds, and fractures ; surgical oper- iftions, particularly when performed on cachectic habits : the scarification or puncture of anasarcous limbs; venaesection, and the bites of leeches; punctures of the skin, and the inoculation of morbid, putrid, acrid, or septic matters ; the stings and bites of insects ; abrasions of the cuticle ; irritation caused by coarse articles of clothing, or by morbid secretions or excretions ; the appli- 826 ERYSIPELAS — Causes. cation of stimulating or acrid substances to the surface, particularly rancid oils and unguents ; and the want of personal cleanliness. — b. The more genera/ and internal causes are — exposure to cold and moisture ; atmospheric vicissitudes ; suppression of the cutaneous excretion ; a fish diet, and especially the use of shell-fish, or of dried, stale, or rancid fish ; or of rich, oily, fat, or smoked meats ; the suppression of accustomed secretions, excretions, and discharges — as the menses, hemorrhoids, &c. ; violent mental per- turbation ; an impure state of the air, particularly a stagnant and moist air, loaded with animal effluvia ; the miasm from persons affected by the disease, when confined in a close atmosphere ; and certain constitutions of the air which are re- cognised only by their effects. 45. In persons strongly predisposed, and par- ticularly in those wiio have experienced an attack, very slight errors in diet, and indigestible meats, especially such as are apt to induce a rancid, acrid, or acid change in the chyme ; or spirituous or malt liquors in excess; very fre- quently induce a relapse or return of the disease. Indeed, whatever has the effect of altering the chyme and chyle from their healthy stales, or of interrupting the functions of depurating organs, and thereby of changing the circulating fluids, either by the introduction of morbid and conta- minating matters, or by tlie diminished elimina- tion of hurtful or irritating elements, will excite this malady. 46. The influence of infection in causing ery- sipelas was first, pointed out, and indeed proved, by Dr. Wells, the most original observer of disease in this country at the termination of the last and the commencement of the present century, when the state of medical science was by no means flourishing ; and is fully confirmed by the ob- servations of Pitcairn, Paris, Baillie, Dickson, Weatherhead, Stevenson, Arnott, Gibson, Bury, and Lawrence, referred to in the Biblio- graphic ; and by evidence that has occurred to myself on more than one occasion. — When thus caused, erysipelas is very prone to attack the face and throat, and assume dangerous or even malig- nant characters ; more especially if it also be epidemic. 47. C. Epidemic Ertisipchis. — JVlost writers on the disease, from Hippocrates to the present time, have mentioned its occasional appearance in an epidemic form, and the circumstance of its characters partaking of the prevailing epidemic constitution. On most of the occasions of my seeing it, from 1814 to 1824 or 1825, it possessed more or less of a sthenic or phlogistic type ; and depletions early in the attack, v.'ere then better borne than more recently ; it having, for the last few years (till 1834), presented chiefly adynamic forms. Its appearance in hospitals as a circum- scribed epidemic is very common ; and is gene- rally owing to impure air, particularly during the cold, raw, and foggy east winds that prevail about the months of November and March ; when the external air is in some measure ex- cluded, and the air of the wards becomes loaded with animal miasms ; or with the effluvium of one or more persons affected by it. In these circum- stances, the constitutional disturbance presents, or passes speedily into, the adynamic or nervous states; the secretions, excretions, and circulating fluids being more or less morbid. I'hus, accord- ing to the particular epidemic constitution, the habit of body, the age and strength, and the modes of living, of those affected ; the season in which it prevails; the contingent generation of an infectious effluvium, or of an impure and confined air ; and the pre-existing state of the assimilating and excreting functions; epidemic erysipelas will appear with a predominance either of inflamma- tory, or bilious, or adynamic, or nervous symptoms — on some occasions, with an inflam- matory appearance of the blood ; on others with a loose, dissolved, and otherwise morbid state of this fluid ; and always with the excreting functions more or less disordered. In some instances, the integuments are chiefly affected ; in others, and those the most dangerous, the subjacent parts are principally and often insidiously, diseased. It occasionally does not confine itself to the situation it first attacked ; and frequently it seizes on the face, neck, and scalp ; and is sometimes compli- cated with a similar form of inflammation of the fauces, pharynx, and surrounding parts, or of the digestive or respiratory mucous surface. An abrasion, or some palpable irritation of the cu- ticle, or external injury, is sometimes required to originate an attack ; but much more frequently It is the external expression of a morbid state of the frame, especially of the assimilating and ex- creting functions, and of the circulating fluids. On all occasions of its epidemic prevalence, the constitutional disturbance, ushered in either by rigors, or by irregular chills, precedes the local affection : sometimes in a very evident manner ; at others, more slightly or obscurely ; and, gene- rally, the formation of matter, and effusion of fluid into the cellular tissue, are not attended by the well-marked symptoms usually indicating them in more healthy states of the body.* * Hippocrates {Epid. 1. iii.) states, that erysipelas, epi- demic in the spring,sometiines continues through the sum- mer and autumn. — Bartholin and Sylvius describe an epidemic which was frequently complicated with inflam- mation of the stomach and bowels. — Tozzi (Comment, in Hippoc. Aphorism. 1. vii. \ 20.) remarks, that a fatal form of the disease was prevalent,during the autuinn and winter of 1700, in Naples; and afTected chiefly the face ; delirium, cpistaxis, and malignant symptoms rapidly supervening. When erysipelas is epidemic about the autumnal equinox, it sometimes abates during the winter, as remarked by Sydenham, and becomes again more prevalent in the spring. RiciiTER states, that such was the case in respect of tlie epidemic of 1720-21, in Turin. It attacked any part of the body ; but most frequently the face, neck, and limbs. Epistaxis and a lax state of the bowels were fa- vourable oecurrences. Bloodletting, in the more phlo- gistic cases, and medicines to aid the depurative proce.sses, were found most beneficial. — In the epidemic of 1750, described by Darluc, the diso:ise commenced with cir- cumscribed redness in somepai t of the face, which spread over the head and face, and was attended by great tume- faction, a hard and frequent pulse, great thirst, anxiety, &c. In many cases, the adection extended over the throat, was accompanied with " difiiculty of deglutition, lioarseness, a feeling of sutlbcation, and swelling of the ex- ternal parts of the throat and neck," with delirium, thick and turbid urine, subsultus tcndinum, Ac. ; and occa- sionally terminated in sphacelation. Offen.sivo sweats, and free, copious, and foetid alvino evacuations, were salutary. Bleeding at the commencement, followed by emetics, purgatives, and diaphoretic tisanes, was generally employed. If these were neglected, the affection of the throat often proved fatal. — Brompield mentions the epi- demic prevalence of the disease for two years ; the head being adected. In it, the antiphlogistic treatment was generally fata! : bark and cordials were most serviceable. — Dr. Fekro, of Vienna, and Dr. IlAtiCi, of Pavia, de- scribed an epidemic in these cities, during the years 1780 and Hf^S, which was freciuently either associated with, or pissed into, peripneumonia, culic, and diarrhoea. And, in all these cimiplications, liloodlctting, antimonials, dilu- ent.'?, and laxatives, were the most successful remedies. ERYSIPELAS — OF Infaxts. 827 48. D. Nature of Erysipelas. — Dr. Cullen considered erysipelas to arise from the irritation of a morbid matter generated within the body, and thrown out, by the fever, upon the cutaneous surface. This is substantially the opinion of the ancients; and, with u very few slight modifica- tions, of the best writers among the moderns also, especially the Franks, Selt,e, Richtf.r, &c. — Sir A. Carlisle says, that " it is a humoral and constitutional inflammation occasioned by aliment- ary crudities," and attended by an excess of acid in the fluids. That it is a humoral and constitu- tional inflammation, is very generally admitted ; and that alimentary crudities often precede and attend it, is also evident : I conceive, however, that not only a vitiateil state of the chyme and chyle, proceeding from weak digestive power, or unwholesome and indigestible food, and vitiating the circulating fluids, but also the absorption of morbid effluvia, and the r(;tention of effete matters in the blood, owing to impeded excretion, either by the skin, the liver, the kidneys, the mucous surfaces, or the uterus, — in short, that a morbid condition of the fluids, arising either from the passage into them of contaminating materials, or the retention in them of effete elements, that are constantly being excreted by the various emunc- tories, — are the principal changes productive of this disease. 49. These changes most probably depend upon deficient power of the digestive, assimilative, and excreting viscera — upon depression of the or- ganic nervous influence. But, as soon as the change in the circulating fluid reaches a certain pitch, febrile action is the consequence; and the morbid matters in the blood are determined to excreting surfaces and organs, which are thereby excited either to eliminate them, or to assume a morbid state of vascular action. The skin, being one of the most important of these organs, thus becomes irritated and inflamed, owing to its pe- culiar functions and susceptibility, and to the nature of the irritating matters contained in the blood, or of the change this fluid may have ex- perienced. If the febrile commotion be charac- terised, owing to the state of vital power, by much sthenic action, the local change will be thereby fully developed, and thrown chiefly upon the excreting surface ; but if, from deficient power, the fever partake more of an adynamic or asthenic form, the local expression of the dis- ease will be made less fully on the external sur- face, and will fall more fully upon subjacent and internal parts. Hence the frequency of in- ternal complications, and of aflPection of sub- cutaneous tissues, in adynamic cases ; and of the simple and superficial forms in the more inflammatory and sthenic, unless when the dis- ease is attended by a great excess of vascular action above vital power, and then the local affec- tion extends to adjoining parts from this circum- stance, in connection with the morbid state of the blood. The diflPusive character of the inflam- mation, whatever tissue it may attack, is referrible entirely to defective vital power, to the changes in the circulating fluids, and to the imperfect tone of the extreme vessels, — these conditions being inadequate to the formation of coagulable lymph ; the products of inflammatory action in this state of vital power, and of vascular action and impurity, being a turbid, puriform, ichorous, or sanguineous serum, which produces a septic effect, or poisons the adjoining parts, especially the cellular tissue. 60. VIII. Erysipelas of Infants — Erysipelas Neonatorum, Hildenbrand and Richter — may bo either simple or complicated ; and it may attack either the head, trunk, or extremities. When it appears on the trunk, it generally com- mence^ at the umbilicus ; the abdomen, trunk, and lower extremities being its most frequent seat in infants. It is generally accompanied with phlyctenae or large bullae ; and it is sometimes com- plicated with oedema or inflammation of the sub- jacent tissues, and with inflammation or congestion of internal organs. It is most common from birth to a year old ; and is sometimes remarkably prevalent in lying-in and foundling hospitals. The occurrence of Bulle, in nearly all the children born for many months in Queen Char- lotte's Lying-in Hospital, alluded to in that article (§4.), was evidently referrible to a more than usually superficial, slight, and uniform kind of erysipelas, which affected the whole surface in many instances, and not any one part in pre- ference to another. 51. When attacking infants, erysipelas presents the following conditions and morbid relations : — • 1st, It is sometimes referrible to imperfect ablution and removal, soon after birth, of the secretion which covered the cuticle, and which becomes acrid and irritating if left in contact with it; — 2d, It frequently proceeds, especially in hos- pitals, from a foul air or other contaminating agents, or irritants, acting either internally, or on the uncicatrised umbilicus ; — 3d, The reten- tion of excrementitious matters, as the meconium, and morbid secretions, evidently dispose to it ; — 4th, Want of care and of due cleanliness, espe- cially as to the immediate removal of the excre- tions from the parts with which they come in contact, is also a common cause; — 5th, It is probably favoured, as M. Billard suggests, by the great vascularity of the external tissue of the integuments at this epoch; — 6th, It is not so frequently complicated, or attended by great dis- order of the circulating fluids, as in aged persons, although it is generally accompanied with dis- order of the excretions, and often with an inflam- matory state of the digestive mucous surface, and occasionally with disease of the throat and re- spiratory organs ; — 7th, The attendant fever is more commonly of an inflammatory kind, than in adults and aged persons; — 8th, It terminates in resolution, suppuration, and gangrene; this last occurring frequently when the disease commences about the urnbiHcus and genitals ; and occasion- ally in Induration of the Cellular Tissue (see that article); — 9th, The afl^ection of the pu- dendum, and the complication with disease of the throat, are rarer in infants than in children from a year to five or six years of age ; — 10th, It is generally attended by great danger, especially when it prevails in lying-in and foundling hos- pitals, owing to the frequency of its complication with, or metastasis into, internal disease; — 11th, Fatal cases usually present inflammatory appear- ances in the digestive mucous surface, and less frequently in the respiratory surfaces and mem- branes of the brain, in connection with destruction of the subcutaneous, cellular, and adipose tis- sues; a turbid, puriform, or sanguineous serum 828 ERYSIPELAS — Treatment of the Simple Fonw. being sometimes effused from the serous surfaces, but never coagulable or albuminous lymph. 52. IX. Treatment. — So numerous are the shades of difference, as to both nature and degree, between the mildest and severest forms of erysi- pelas, that no general plan of treatment can be proposed, without modifications according to the circumstances of particular cases. In some in- stances, large depletions are required ; in others, moderate or local depletion only is admissible ; and, in many, depletion is most injurious, the most energetic tonics being often indispensably necessary. Whilst the disease thus requires, from the veni commencement, most varied and even opposite modes of cure, it frequently also demands an almost equal diversity at different stages of its progress. The following, as remarked by Mr. James, is, perhaps, the most extensively applicable precept, as to treatment, that can be inculcated: — Where the skin is tense, deep- coloured, and hot, with a high pulse, full and flushed face, active delirium, and great heat of the general surface, and the constitution not ma- terially impaired, depletion is well borne, and is required ; but where there is no tension, nor much heat, nor great redness of tiie part ; the pulse being soft, the countenance pale or sunk, the general temperature but little elevated, and the delirium quiet or comatose ; depletions are injurious, and a restorative treatment is most appropriate. In the former class of cases, the reduction of the external inflammation, by local as well as by general means, is most serviceable ; but, in the latter, the external affection,is a small part of the disease, relief to the system often arising from encouraging it, and great injury from repelling it. — Even in the most acute and inflammatory cases, large depletions should be employed with much circumspection ; for, how- ever high, bounding, or hard the pulse, or great the heat may be, there is always, owing to the circumstances explained above (§ 16. 49.), a dis- position to asthenic vascular action, and a defi- ciency of vital power. Bloodletting, especially venaesection, should, therefore, be resorted to early in the attack, and should not be solely or even chiefly relied upon ; the reduction of the excited action forming only one of the intentions of cure ; and bloodletting being only one of the modes of fulfilling it. 63. i. Treatment of Simple or Superficial Ery- sipeliis. — A, The mild or benign form requires only simple measures. Purgulives with the alka- line subcarbonates, warm diaphoretics, and diu- retics, are most beneficial, if exhibited so as to promote the depurating or secreting functions. After the bowels have been fully evacuated, the decoction of quince seed may be given frequently, with mucilage, nitrate of potash, subcarbonate of soda, and spirit of nitric a;ther. If this form become erratic, a combination of tonics, especially bark, with these, will generally remove all dis- order. I have found the following remarkably useful : — No. 217. R Soda? Carbon. 5 j. ; Vini Ipecacuanha? 3 ij. ; Spirit. Ammon. Arom. .3j. ; Infusi Senna.- Com]). ,? ij. ; Decocti Cinchona; 3 iij. Tinct. Cardamom. Coinp. 3iij. Miece. Capiat partem tcrtiam, tcr in die. 54. B. The slighter cases of the acute form of superficial erysipelas are generally removed by tiic above means. If, however, vas-cular action be much excited, local depletions, or a small or moderate bloodletting, followed by diaphoretics, depurating purgatives, and abstinence, are al- ways serviceable. When the head is unaffected, particularly if the disease occur in autumn ; and after depletions, if requisite, have been practised ; an emetic, early in the attack, generally restores the impeded functions of the liver and skin. A dose of calomel and James's powder, with two or three grains of camphor, should be exhibited at bedtime, and a purgative early the following morning ; this last being repeated every morning, and diaphoretics, with diuretics, every three or four hours during the day. If the disease be caused by suppression of the perspiration, dia- phoretics, as liicHTER very justly remarks, are especially indicated ; the affected part being con- stantly covered by oiled silk, to prevent evaporation from it. The acetate of ammonia, antiinonials, and camphor, are the most appropriate of this class of medicines. If the head or face be af- fected, a general bleeding — preferably from the feet, whilst immersed in warm water— is requi- site ; and the means just mentioned, with the exception of the emetic, ought to be freely pre- scribed, the action on the bowels being promoted by purgative enemata (particularly F. 150. or 151.). Colchicum maybe tried in this and the phlegmonoid varieties. It was much recom- mended by Mr. Haden, and recently by Mr. Bullock. It is most serviceable when givea with the alkaline carbonates, or magnesia. 55. The choice ofpurgatives, and of the medicines that should be combined with them, is a matter of much greater consequence in this complaint, than is usually supposed. I have most frequently given the calomel in the above combination at first; and afterwards, the compound infusions of gentian and of senna, with a neutral salt. This last may also be prescribed in camphor mixture, with an alkaline bicarbonate, and taken whilst effervescing with lemon juice, the alkali being in excess Rjciiteu advises equal quantities of the bitartrate of potash and magnesia. Sir A. Car- lisle recommends the fixed alkaline bicarbonates to be given with the purgatives ; and barley water, with the carbonate of soda, to be used as common drink ; on the supposition of the disease arising from an acid in the blood. It is possible that the change in this fluid may partake of an acid character, but we have no proof of it ; nor can it be the only, or even the chief, change. The practice, however, has been long known to be ser- viceable. I believe that the bicarbonate of potash and sesquicarbonate of soda pass rapidly into the circulation, and act beneficially on the blood. Yet acids may be given not only without risk, but ap- parently witli advantage. They have even been recommended by Marcard, Panzani, and others. In a case which I recently saw in consultation witii Dr. RiDiNo, and which was complicated with menorrhagia of a most atonic kind, and with nervous symptoms, large doses of a mineral acid were added to tonics, and yet the recovery was rapid. The neutral salts, vvhich are most to be depended upon, are — the sulphates of potash, soda, and magnesia ; the tartrate of potash, or of potash and soda ; and the phosphate of soda. Either of these may be given in the infusion of senna, or in equal parts of it and of the infusion of gentian, or of bark. The association of purga- ERYSIPELAS — Treatment lives with tonic and bitter infusions is of the greatest benefit at all periods, and particularly at an ad- vanced stage of the complaint, F. 215. or the following may be employed : — No. 218. R Potassae Sulphatis 5 j. ; Soda; Carbon. 5 jss. ; Infusl Senna; Comp., Infusi Gejitianie C'omp. aa, 3 iijss. ; Tinct. Jalap. 3ijss. ; Tinct. Cardamom. Cump. .3iij. M. Fiat Mist., cujiis capiat Coch. iij. larga.secunda veltertia quaque horfl, donee plend dejecerit alvus. 56. After morbid secretions have been evacuated by these means, and the functions of the skin and kidneys promoted, the infusion or decoction of cinchona, or the infusion of cascarilla, may be taken with the alkaline carbonates, or witii liquor potassas ; and if the urine be scanty, the spirit of nitric a;ther, or of juniper, may be added. If the skin still continue harsh or dry, ' the ligiiter infusions, or camphor mixture, may be given with the solution of acetate of ammo- monia, and the spirit of nitric aether, or ipeca- cuanha wine. When excoriating secretions from the vesications on the surface extend or increase the irritation, defective function of the excreting organs sliould be suspected, and deobstruent and stomachic purgatives perseveringly pre- scribed. The morbid action, also, of the part ought to be corrected by washes containing a solution of the chlorates of lime or of soda, or by those consisting of lime water, or of Creasote water ; or by applying the linimentum tere- binthinaj. If dry incrustations form on the sur- face, oiled silk should be constantly applied over it. Hut in ordinary circumstances, especially of the constitutional disease, it is advisable to abstain from local applications, or to resort merely to bathing or sponging the part with some tepid fluid, as the decoction of quince seed, or of the flowers of the lime {Tilia Europea) , if the heat, pricking, &c. be troublesome. Where the vesica- tions are nuinerous, the practice of dusting the part with flour, or any other absorbent powder, is warranted by the results of experience. Of inci- sions and other local means, especial notice will be taken hereafter. 57. Where a disposition to terminate in cedema of the subjacent tissues becomes apparent, the measures to be adopted must depend upon the state of the constitution, and on the previous treatment. If the former be not much impaired, and if the latter have not been energetic, purga- tives, as directed above, and warm diaphoretics, should be frequently exhibited, and a blister ap- plied to the part. But if the vital powers be much impaired, the more restorative remedies, and the local means, recommended in the next section (§ 58.), should be resorted to. Where the inflammation of tlie integuments extends to the parts beneath, and the skin becomes tense, local depletion by leeches, scarification, or inci- sions, and the other measures directed in this association of the disease (§ 60.), should be adopted. 58. ii. Tveatment of Associated and Complicated Eriisipelas. — A. In the association with cedema of the subjacent cellular tissue, the utmost atten- rion to the state of health, the age, and habits of the patient, is necessary. When it occurs in broken-down constitutions, and persons addicted to spirituous liquors, not only should tonics, &c., particularly cinchona, quinine, cascarilla, with soda or potash, camphor, the preparations of am- monia, &c., be exhibited, but also wine, light OF THE Complicated Forms. 829 nourishing diet, and occasionally small quantities of the beverage to which the patient has become habituated. But these remedies should be pre- ceded by, or alternated, or even conjoined, with, such purgatives as are most active in promoting the secretions and excretions, which are generally deficient in this state of disease. If the bile be scanty or morbid, calomel, blue pill, Plummer's pill, or the hydrargyrum cum creta, should be given with camphor; and the mixture last pre- scribed ought to be taken a few hours subse- quently, and continued from time to time. Those who have been addicted to spirituous liquors, are most benefited by half an ounce each of the spirit of turpentine and of castor oil, taken on the sur- face of weak Hollands or common gin. This dose may be repeated on alternate days .- it will be found remarkably beneficial when the urinary se- cretion is deficient; or when the affection of the skin is consequent upon anasarca. In this latter circumstance, the infusion or decoction of cin- chona may be given with the chlorate of potash, and the tincture of cinchona, more especially if there be any tendency to gangrene, or if the tem- perature of the surface be low, and the colour deep or dark.* Either of the purgatives pre- scribed above (§ 55.), should likewise be taken occasionally. Fomentations with decoction of chamomile flowers and camphorated spirit may also be employed, early in the disease. It is in this variety, as Mr. S. Cooper remarks, that pres- sure by bandages, as recommended by MM. Rayer, Bretonneau, and Velpeau, is most ap- propriate. After morbid secretions have been eva- cuated, and the use of tonics, with camphor in full doses, or with the chlorate of potash, or vfith both, has been commenced — the part being greatly distended, and the surface irritable or dis- posed to gangrene — I have seen immediate and remarkable advantage accrue from the application of a warm cloth, moistened either with the spirits of turpentine, or with F.311., the bowels being kept regularly open by the oily draught, or by the stomachic purgatives directed above ; or by enemata, particularly F. 135. 150. and 151., either of which should be repeated according to its effect. — When sphacelation has commenced, a poultice of the powdered bark, or of carrots, and this spirit; or a solution of the chloride of lime, or ap- plications containing the Creasote; are the means which promise the most advantage. 59. B. Treatment of Erysipelas associated with inflammation of the subcutaneotis tissues. — This most serious form requires, according to the grade and kind of vascular action, local and consti- tutional ; the age, strength, and habit of the patient, and the stage of the disease, the most varied, but still the most active, treatment — in some cases general or local depletion, or both ; and in others, as invigorating remedies as were prescribed for the preceding variety; — in an early stage the former means, and in a later pe- riod the latter. The treatment of this variety niay be divided — 1st, into that which should be adopted before suppuration has taken place ; * I have lately had an opportunity of trying the Cr^a. sate, in doses of from one to three drops, four times a day, in a case of this variety. It increased the urinary secre- tion ; but it was not so beneficial as the chlorate of potash, which I have been long in the habit of prescribing. I have, however, found it useful in atonic dropsy, and ge- neral cachexia. 830 ERYSIPELAS — Treatment of the Complicated Forms, I where the disease approaclies the character of diffusive inflammation of the cellular tissue. If and, 2dly, into that v.'hich is required when sup- puration or disorganisation has occurred. 60. a. Before suppuration or disorganisatio)i takes place, the most varied, and even opposite, measures are often necessary, according to the age, strength, and habits of the patient, the pre- vailing epidemic constitution, and the local and constitutional symptoms. 'When the surface of the inflamed part is of a deep or florid red, tense, and very hot ; the pulse hard, full, or strong ; the head much affected ; and the papilla; of the tongue erect and excited ; both general and local bloodlettings are requisite, especially in unbroken constitutions, in persons not addicted to intoxica- tion, and very early in the disease. When erysi- pelas attacks the head, or face, and insufficient epistaxis occurs, ventcseclion should be resorted to ; but when it appears in other parts, a large num- ber of leeches should be applied, or incisions made, as recommended and practised by Ivlr. Copland fluTciiisoN. This local mode of depletion will often be sufficient, excepting in the most phlo- gistic cases, when venajsection may also be neces- sary. But in large towns, and in hospitals, this latter will seldom be required, if the former have been employed with decision. Besides, in these circumstances especially, there is considerable risk of inflammation attacking the vein. When suflicient blood is not procured by leeches or incisions, cupping around, or even over the part if it can be borne, will frequently be preferable to venffisection. In proportion as t!ie local and constitutional symptoms approach to those de- scribed under the head of Diffusive InflamnuUion of the Cellular Tissue, is the necessity for bleeding diminished — that which necessarily attends the incisions of the part being often suflficient, — and for the restorative and tonic treatment there recommended (§ 34. et seq.) in- creased, especially alter morbid secretions and feecal matters have been evacuated. Where the skin is but little affected ; the powers of life de- pressed, from antecedent visceral disease or in- temperance ; and the affection of the subjacent parts extending rapidly ; the remedies advised in that article should be prescribed energetically. When the pulse is broad, open, and expansive, or tumultuous, or easily compressed, although it be quick, siiarp, or even bounding, general blood- letting is injurious ; the local affection eitlier ex- tending, or changing its place, and vital resistance sinking from the evacuation. In the form of this complication first described by Mr. Copland Hutchison, wherein the inflammation extends to the fascia;, to the intermuscular cellular sub- stance, and to adjoining parts, incisions sufliciently deep to divide the fascia;, as he directs (see Sur- gical Observations, &;c. p. 110. 2d edit.), are most indispensable, whatever may be the state of gene- ral vascular action and constitutional power: for if these be of a sthenic kind, the incisions come in aid of the necessary depletions ; and if they be asthenic, local congestion and effusion are thereby removed, and the operation of restorative remedies in no way impeded. 61. The observations made respecting other evacuations in simple erysipelas,-very nearly apply in this conq)lication. — Kinetics are recommended by Ri.n,, IIeiz, and I'oux, and are most bene- ficial in the more sthenic diathesis, where those of antimony may be employed ; and least so at all prescribed in the latter state, ipecacuanha, conjoined with ammonia or camphor in full doses, is preferable. The early and repeated exhibition of purgatives is as requisite in this as in the simple forms ; and the choice and combinations of them, there directed (§ 55.), may be adopted. But, in proportion as the characters of diffusive inflam- mation of the subcutaneous tissues are assumed, the more warm and stomachic should the purga- tives be. Where this kind of complication pre- dominates, the treatment described in that article (§ 34. et seq.) should be followed. — Diaphoretics also, as already recommended, are usually of service ; but the selection of them should depend much upon the state of the stomacii, and the constitutional powers. Where the former is not disturbed, and the latter are not much depressed, small doses of antimony with other diapiioretics are beneficial ; particularly if the febrile action be great, and at an early stage of the disease : but if the stomach be irritable, diaphoretics ought to be given in effervescence, generally with an excess of the alkali ; and, if vital power be much depressed, those with the sesquicarbonate of ammonia and camphor are preferable. If the edges and point of the tongue be red, and the epigastrium tender, a blister, or sinapism, or the warm turpentine epithem, should be placed over this region, and small doses of the nitrate of pot- ash, with carbonate of soda, prescribed in the decoction of quince seed, or of linseed, or of the flowers or bark of the lime or linden. — Mercurials, at the commencement, and occasionally after- wards, are generally of service. Calomel is most to be depended upon ; and, when conjoined with camphor or am.monia, it may be taken in any state of the disease, if the biliary and other se- cretions require its exhibition. In low states of vital power, it should be followed, in three or four hours, by a stomachic purgative, the action of which may be promoted by a cathartic enema (§ 55. 58.). 62. Opiates or other anodynes are often neces- snry, particularly when there are watchfulness, general irritability, and much pain, which are often the pre'cursors of, or even tend to induce, delirium. But they should be given with great caution. They are hazardous means, if pre- scribed before morbid matters are evacuated, or where there is any tendency to coma. The acetate of morphia, in a full dose with an aromatic spirit, nt bedtime, is most to be depended upon, — Bark and other tonics are necessary from the commencement, when the disease presents more of the diffusive, than of the phlegmonoid, charac- ters. At first, the bark may be given in decoc- tion or infusion, particularly when the propriety of exhibiting it is doubtful ; and with the alka- line carbonates, or with the solution of the acetate of ammonia. In cases of manifest asthenia, or cachexia, and diffusive appearance, citiier the sulphate of quinine, or the bark in substance, with camphor and r.romatics, may be prescribed ; but I have generally found the decoction, with the chlorate of potash, and with cither the compound tincture of bark, or the tincture of serpentaria, to act beneficially, when alvine evacuations were sufficiently promoted by suitable means. 63. In the three grades of the j)hlegmonoid ERYSIPELAS — Treatmen (^ 29. et seq.) complication, the same principles as have been now stated are applicable. Deple- tions and other evacuants should be prescribed with a promptitude, and to an extent, co-ordinate witli each, and with a due regard to the pecuhar circumstances of the case ; always recollecting that, in diseases like this, which are connected more or less with imperfect excretion, and a mor- bid state of the circulating fluids, vascular action may be excessive, whilst nervous power and vilal resistance are reduceil to the lowest states ; and, therefore, that vascular depletion, in order to be salutary, or even not to be injurious, sliould be early employed, and with strict attention to its effects both at the time and immediately after- wards. Nor should it be overlooked, that, in cir- cumstances where the propriety of general or even local depletion appears doubtful, either one or the other, or even both, may be practised, if ju- dicious restorative means are also resorted to, especially in conjunction wiih sucii remedies as promote tlie excreting functions, and purify the blood, or correct its morbid state. 64. /). When suppuration, of disorganisation, has taken place, or when either is inevitable, general bloodletting is no longer admissible, although the vascular excitement may be great ; and the only local depletion that can be ventured upon, is that which will follow incisions, which should now be made, if they have not already been resorted to. In some cases, however, the application of leeches, or cupping around the part, may still be ventured on, if the local action be high, and the changes now in question be only commencing. But where matter has already formed, or parts have sloughed, vencesection, or emetics, or even lowering purgatives, will only promote llie absorption of morbid matters from the diseased part, and the consequent contamina- tion of the circulating fluids, instead of throwing them out upon tiie surface, and facilitating their expulsion through the outlets which ought to be made for them, by incisions down to tiieir seats. In proportion as disorganisation is manifest, orad- vances, so should restoratives and tonics be freely administered ; and either those already mentioned, or those prescribed in the article on Diff\isive Injiammation of the Cellutau Tissue (^ >^4.), ought to be liberally used ; with the aid of wine, and such nourishment as the state of tiie digestive organs will admit of. The stomachic purgatives and evacuants directed above (§ 55. 58.), should be given occasionally, in order to remove morbid collections, and promote the depurating actions of the abdoirinal viscera on the blood. In con- stitutions broken down by intemperance, the be- verage to which they have become habituated, is the most serviceable, as Sir A.Coopeu has justly remarked ; but, in other circumstances, wine may be taken in soda water, or in spruce beer, to which a little of the carbonate of soda or of potash has been added. ^Vhen a free outlet has been given to matter or sloughs, advantage will often accrue from the injection of a weak solution of any of the chlorurets, or of Kreosote water ; and the use of compresses and bandages around or above the seat of disorganisation, in order to pre- vent its extension. 65. C. Erijsipelas with Nervous and Cephalic Symptoms. — a. ^Vllen the nervous symptoms ap- pear early, and the head or face is not the seat of T OF THE Complicated Forms. 831 the disease, the attendant fever assuming this form, gentle tonics and diaphoretics are serviceable, especially the infusion of valerian, with the solu- tion of the acetate, and the aromatic spirit of ammonia ; or the infusion of bark or of cascarilla, with the alkaline carbonates, and the prepa- rations of camphor ; or either of these infusions, with the tincture of serpentaria and the chlorate of potash. RicHTKR remarks, that, when the attendant fever is of the nervous kind, the local affection is most prone to change its place, or to recede from the surface, and attack internal organs. I believe that there is much truth in this ; and that these changes are less likely to occur when the above remedies are lesorted to, and a blister is applied over the affected part ; the excreting functions being moderately promoted by stomachic purgatives and enemata. 66. b. Where (ie/iri!i/7i supervenes, its treatment must depend upon its form, the seat of the local affection, and state of tiie system. When the fever is of the nervous kind, delirium is an early symptom, and the result chiefly of the febrile action, and depiession of nervous power ; the means now mentioned, especially if morbid ex- cretions have been evacuated, being then bene- ficial. If the tongue be, at the time, moist, camphor and anodynes may also be prescribed. But when delirium is connected with general vas- cular excitement, depressed power, and manifest disorder of the circulating and secreted fluids, the alterative and stomachic purgatives, and ene- mata prescribed above (§ 55. 58.), are most to be depended on. When the disease attacks the face and head, the delirium frequently proceeds from inflammatory action in the membranes of the lirain, and rapidly passes into coma, from effusion and exhaustion of vital power. In this case, early bleeding from the feet, or cupping on the nape of the neck, or a number of leeches to the occiput and behind the ears ; mustard pedi- luvia ; cold applications to the head, if the heat be excessive and the patient young or robust; and active cathartics, both by the mouth and in enemata; are to be prescribed. If great and deep- seated tumefaction take place in the scalp, parti- cularly about the occiput, incisions should not be overlooked. 67. c. When profound coma comes on, the excretions being voided involuntarily and uncon- sciously, when the pulse is rapid, and the tongue and gurns covered by a thick fuliginous coating, what measures should be resorted to? This oc- currence is frequent ; is attended by the utmost danger; and is seldom satisfactorily treated. In several cases, I have resorted to the following means with success: — 1st, Unless calomel has been already taken largely, a full dose of it, with camphor, ought to be prescribed, in some thick substance, and placed upon the back part of the tongue, when it will gradually be swallowed ; ^ 2d, Two or three hours afterwards, turpentine, with an equal quantity, or with one half or two tl^irds the quantity, of castor oil, with a little liquor potassas, should be exhibited in the form of an electuary, and as just directed, if the coma be profound, or in any other form, if the patient can be roused sufficiently to take it ; and repeated frequently until the bowels begin to act ; when itsoperation may be promoted by enemata (F. 150, 151.) J — 3d, If matter form in any part, incisions ERYSIPELAS — Treatment of the Complicated Forms, 68. D. Treatment of Gastricaiul Bilious Eri/si- 832 should be made early, and through the aponeu- rotic expansions, where there is the least risk of matter forming beneatli them* ; and 4th, Blisters to the insides of the thigh, or to the nape of the neck, and between the shoulders, should also be directed, if the symptoms be not soon ameliorated by the preceding means ; and the calomel and camphor repeated every five or six hours, until the tongue and gums evince the specific operation of the former ; when warm or stomachic purga- tives, aided by the enemata already advised, and gentle tonics, ought to be given from time to time, to evacuate morbid secretions and support the vital powers. « The following case occurred, eleven years since, to a very able practitioner, Mr. H. Cox, formerly House Sur- geon to the Infirmary for Children ; and was soon after, wards published by him. I quote it in an abridged form, as it illustrates this complication, and the treatment re- commended. It, moreover, is evidence of facts connected with the treatment not only of this, but of other maladies : " Jane Guest, aged 21, was seized, Jan. 22. 1824, with rigors, and fits of hysteria, to wliich she was subject. On the fourth day, her scalp had become red and swollen, and the tongue tumid and red. Delirium and great rest- lessness afterwards supervened, and the erysipelas ex- tended over the face and neck to the sternum. The eyes were now completely shut, and the features so swollen that she could not be recognised. In two or three days she passed into a state of coma and insensibility." — " The pulse, which was formerly full, but easily compressed, was now excessively quick ; the tongue was black and crusted ; and she rolled towards the foot of the bed. The treatment usually resorted to in similar cases had failed to ameliorate any of the symptoms. The condition of the patient was, on theSlst of January, the worst possible. The pulse could not be counted ; she was profoundly comatose ; the integuments of the head were distended to the utmost ; and the tongue, teeth, and gums were covered by a fuliginous coating. At this date, I stated the case to Dr. Copland, as one for which there was no room for hope. lie strongly advised me to exhibit the oil of turpentine in large doses, as he had experienced success from the use of it in several cases characterised by similar symptoms to this." — " I had had many opportuni- ties of witnessing the beneficial effects of this substance at the Royal Dispensary for Children, where Dr. Copland had introduced its frequent use. I, therefore, according to his advice, prescribed as follows : — " IV Olei Terebinthina; 3 ss. : Olei Ricini 3 ij. -, Mellis 3 ij. Misce. Fiat Etectuarium statim cajiiendum. "R Olei TerebinthiniE 3 vj. ; Olei Olivfejj.; Aqua 5 X. Misce. Fiat Enema statim administrandum. " Ft'4. 1st. — Several ofi'ensive evacuations. Pulse some- what stronger, and not quite so quick. The coma is less profound. " li Olei Terebinth., Ol. Ricini, aa 3jss. ; Mellis q. s. ut fiat Elect. Sumat, tertiis horis, partem quartam. " 2a. The patient could be roused. Theraouth, teeth, and gums were cleaner ; the pulse 130, and fuller. The local symptoms were ameliorated. The oils have pro- cured several bilious evacuations. " R Olei Terebinth. 3 jss. ; Ol. Ricini 3 ss. ; Liq.Potassa; 3 j. ; Aq. Cinnamom. 3 iv. M. Capiat partem quartam, quartis horis. " 3d. Much better. Pulse 120, and more natural as to strength. The ton^e .is beginning to become clean. The bowels have acted copiously, and much yellow bile has been voided. The patient now answers the questions put to her," &c. From this time her recovery was unin. terrupted. {I.ond. Med. Ilrpns. for April, 1825, p. 299.) 'I'here is much niisappruhcn.^ion as to the operation of full doses of turpcntnif, given either by the mouth or in enemata; many suppc snig that they increase vascular action in the brain. 'I'he reader will perceive, upon pe- rusing the account (published in the Lmid. Med. and Phys. Journ. for May and July, 1821,) of the experiments I performed — 1st, Ui)on myself; 2dly, upon the lower animals; and, 3dly, in numerous cases nf disease — that this substance, given so as to act upon the bowels, either from the largeness of the dose, or by the aid of a purg- ative conjoined with it, is a powerful derivative from the brain, diminishes vascular action in serous mem- branes, ami restores lost tone to the extreme capillaries, especially in exhaling .surfaces. 'J"hc extensive experi- ence I have since had iif this medicine, has confirmed these inferences, but has shown that it may be injurious in the hands of those who arc not well acquainted with the exact circumstances in which it may be given with advantage. peias. — a. Where the yellowish coating of the tongue, the appearance of the surface, or of the excretions, and nausea or vomiting unattended by much tenderness at the epigastrium, indicate biliari) disorder, an emetic, given early in the dis- ease, if the head be not seriously affected, is usually of service. After its operation, a full dose of calomel, purgatives, laxative enemata, diaphoretics, and the other measures already re- commended, according to the external character of the disease, and the states of general and local vascular action and of vital power, should be prescribed, and repeated as circumstances may require. Wherever tenderness of the epigastrium or hypochondria exists in connection with the nausea or vomiting, local depletions in the vi- cinity, blisters, sinapisms, or warm terebin- thinated epithems, placed over these regions, will be of essential service. The last of the should be applied until it produce redness, and be repeated according to its effects upon the disease. Whenever any part within the abdominal or thoracic cavity is affected, either coietaneously with, or consecutively upon, or even after the disappearance of, erysipelas, these are the most effectual remedies, especially when aided by mercurials, prescribed either alone, or with cam- phor and opium. 69. I). W here this specific form of inflammation seems to affect tlie digestive mucous surface, small and repeated doses of nitre, with the carbonate of soda, in the decoction of quince seed, or of the lime bark ; camphorated emulsions ; diaphoretics in mucilaginous vehicles ; local depletion, and the external means just specified, are most to be depended upon. In both this and the hepatic complication, calomel, blue pill, or hydrargyrum cum creta, may also be given with opium and small doses of camphor, until the gums are afl'ected ; but it also will often be necessary to evacuate morbid matters by stomachic and mild purgatives, and to support the strength by light tonics, especially at an advanced stage. In most cases of internal erysipelas, particularly if parts within the abdominal cavity be affected, calomel with camphor and opium, lerebinthinated purga- tives, and the epithems above mentioned (§ 68.), are of the greatest benefit. 70. E. The association tviili Inflammation of the Throat and Pliurijni, being often attended by much danger, especially if the fever be of an adynamic kind, or if the head and face be affected, requires early and active treatment. Vena;section, or local depletion, or both, are frequently necessary; but the propriety of having recourse to them, and the extent to which either of them may be carried, must depend upon the state of general, as well as of local, vascular action, and vital power. Where there are great swelling of the external throat, and tension of the integuments (§ 33.), (JicisioHs should be made in the manner about to be directed (§ 80.), and the internal treatment conducted appropriately to the states of the different functions, conformably with the principles developed above. If the swelling and tension be less, and the symptoms not so urgent as to require incisions, a large blister may be applied to the lower half of the neck, ex- tendmg over a part of the sternal region. Active cathartics, aided by the frequent exhibition of ERYSIPELAS — Local Treatment. 833 enetnata (F. 135. 151.) ; gargles with a solution of the chlorinated soda or lime ; or of the nitrate of silver; and diaphoretics; are also very generally appropriate and beneficial. Although depletions are very often necessary in this complication, yet venaesection is sometimes injurious, and always in the adynamic forms, or at an advanced stage. In two cases in which I was lately con- sulted, an aggravation of both the local and constitutional symptoms followed bloodletting, though resorted to early, and in moderation. In this, as in every other form of the disease, the treatment should mainly depend upon the states just mentioned ; and upon the various circum- stances peculiar to the case. 71. F. Where tlie Eriisipelatous I iiflammation extetids to the Larynx or Bronchi, or affects the Lungs, venisection is frequently required, but not always to a great amount : in some instances, it has even appeared injurious. Local depletions, however, are generally necessary. The chief de- pendence should be placed upon dry-cupping and the external applications mentioned above {§ 68.), which ought to be repeated, sometimes oftener than once ; and on purgatives, demulcents, andantinio- nials, or other diaphoretics ; these being the chief means of exciting the excreting functions, and thereby of removing the constitutional derangement upon which the local affection depends. 72. G. When erysipelas supervenes in the course of fevers, venisection is inadmissible ; but the early application of leeches to the part is often of service. Internal inflammations appearing in connection with external erysipelas, admit not of vascular depletions nearly to the extent required by true or idiopathic inflammation ; local deple- tions, calomel, camphor and opium, terebin- thinated purgatives and enemata, and the external and other means just particularised, being the most efficient remedies in such cases. Whenever erysipelas attacks internal parts, it may be referred either to insufficient power to determine the morbid action to the surface, or to pre-existing disorder of the part affected, or rather to both. But as all such complications present similar states of vital action to the more simple forms of the disease — varying from the more phlo- gistic to the most diffusive or adynamic, according to the age, constitution, and habits of the patient, the causes and stage of the disease, and the cha- racters of the prevailing epidemic — so do they require a treatment varying from the strictly antiphlogistic, to the most energetically restora- tive and tonic. 73. H. If Inflammation of the Lymvhaiics or of the Veins appear in the course of the complaint, or be associated with it — circumstances by no means uncommon when the upper or lower limbs, especially the former, are affected — general bloodletting is always injurious, and even local depletion is seldom beneficial. The liberal exhi- bition of tonics and stimulants ; of stomachic and mild aperients; and of warm diaphoretics; with anodynes (§62.) if the pain and irritability be great; and emollient and anodyne applications to the part, particularly if the absorbents be in- flamed ; are chiefly to be trusted to ; the intention being, in all such cases, to arrest the extension of disease, and prevent the contamination of the circulating fluids. 74. The spurious forms of Erysipelas, which Vol. I. are often connected with inflammation of dcep' seated parts, and which most frequently occur in the extremities, should be treated according to the principles developed above, and in the article on the Cellular 'J'issue ; free incisions being particularly requisite for them (§80.). 75. J. Depletions and other antiphlogistic reme- dies are serviceable chiefly in a very early stage, whether of the simple or of the complicated disease, however high vascular action may seem j and, although they have been most requisite at that period, and energetically employed, a very active recourse to stimulants and tonics will often subsequently be necessary. Frequently, also, where the propriety of resorting to moderate or local depletions is unquestionable, the good efl^ects of restoratives and tonics, exhibited even at the same time, are equally manifest ; this com- plaint, oftener perhaps than any other, requiring- vital power to be restored by the latter means, whilst vascular action and congestion are being subdued by the former, and by medicines which promote the secreting and excreting functions. The stimulants most to be depended upon, are — camphor and ammonia, or their preparations, given in large doses, when the head is unaffected, or nerv- ous power is exhausted ; and the tonics already mentioned. Various substances, which are both stimulant and tonic, as serpentaria, arnica, &:c. are useful adjuncts to the barks ; and others, which possess more of an antiseptic property, as the chlorates of potash or of soda, or the creasote, are often of essential service, especially in advanced stages of the disease. Tlie frequent and manifest dependence of the complaint upon a morbid state of the circulating fluids, has in- duced some writers to recommend the carbonates of the fixed alkalies, and such other substances as affect more immediately the state of the blood ; but although these are often beneficial, they ought not to be depended upon alone. The morbid condition of the blood is the result of imperfect action of the excreting organs, conse- quent upon defective vital power. The chief intention, therefore, should be to excite the func- tions of these organs, by agents which operate specifically and beneficially upon them, and by those wiiich rouse the vital energies generally, and resist the extension of morbid changes. 76. iii. Of tlie local Treatment. — A. a. Cold applications have been recommended by several writers, but they are not always safe, and ought not to be prescribed when there is very evident adynamia, or for aged persons, or broken-down constitutions. In the more phlogistic states, at an early stage, and especially when these states occur in the face or head, they frequently afford much relief. — b. Warm poultices and foment- ations are objectionable in the phlegmonoid, and, indeed, in the other varieties, unless under some circumstances of the disease connected with local injury. — c. In the strictly constitutional complaint, neither of these are of much service ; dustling the part with flour or any other absorbent powder, when the vesicles break, or sponging it with some tepid and soothing fluid, if the heat and pricking paia be troublesome, being the safest practice. 77. B.a. The application of the tiitrate of silver, in substance or in strong solution, as recommended by Mr, Higginbottom, is often of great benefit. 3H 834 ERYSIPELAS — It should be applied either to the inflamed sur- face and the adjoining integuments, or only to the healthy skin surrounding the afl"ected part ; and it should raise the cuticle, otherwise it will be of little benefit, and fail of isolating the dis- ease.— b, M. Larrey has advised the actual cau- tery to be applied lightly to different points on the inflamed surface, to the number of forty or fifty, with the view of concentrating the morbid action to the parts, and arresting its extension. — c. Bli'iters v/ere employed first by i\I. Dupuytren with this intention. I'hey are of great service in stopping the progress of superficial spreading and erratic erysipelas. But, even in such, when the complaint is very acute, bloodletting should precede, as Dr. ]M' Dowel justly slates, their ap- plication. They are seldom of use in the phleg- monoid form, and never when purulent depots are likely to be formed. Tins writer concludes that blistering succeeds best when the inflammation is pale, or in patches, with but little tumefaction or pain ; and when proper constitutional treat- ment precedes and accompanies it. Tlie blister should completely encircle the disease, covering about two inches, from the margin, of the in- flamed, and as much of the healthy, surface, or it will extend at the unguarded point. 78. e. Mr. Reid and Dr. jNI'Dowel have given extensive trial to mercurial inunction in tiiis com- plaint, in two of the Dublin hospitals. They concur in viewing it as a valuable remedy, espe- cially in conjunction with such internal treat- ment as the case may require, in both the constitutional and the traumatic forms, whether afFecting the head or the extremities. Two, three, or four applications have generally suf- ficed, and salivation has fre(|uently come on. Where the ointment cannot be rubbed, it should be dauljed upon the part. The recommendation of M. llicoRD, who originated the practice, to use only the recently prepared ointment, is very deserving of attention. 79. I). iNIr. Jajies mentions in favourable terms the application of spirits, and otlier stimulating substances, to tiie part. Dr. Peart prescribed a lotion, consisting of a drachm each of the sesqui- carbonate of ammonia and the acetate of lead, in a pint of rose-water. I have directed epithems of spirits of turpentine with benefit ; but morbid secretions should be evacuated, tiie excreting functions restored, and stimulating diaphoretics and tonics administered internally, before these should be ventured on in the constitutional forms of the malady. They are inadmissible where suppuration appears inevitable, or when vital power is much depressed, and vviiere a tendency to affection of, or metastasis to, internal parts is manifest. In such, the dirtusive stimuli are most serviceable given internally. 80. E. 'J'he introduction of incisions into the treatment of erysipelas and its allied aflections is considered by all candid practitioners in this country, and by the more recent Continental writers, as one of the greatest improvements in medical and surgical practice, and as sulelii due to Mr. Coi'i.AND Hutchison. It has been alleged, that the same means were previously recommeny bandages.) — Schmidtmann, Summa Observat. Medicar. &c. vol. iii. p. 371. — C. Billard, Traite des Maladies des Enfans. Paris, 1828, p. 113. — Sahatier, Sur I'Erysip. considere comme Moyen curatif dans Affect. Cutan. Chron. 4to. Paris, 1831 ; et Bullet. Gener. de Th^rapeu- tique, Juin, 1833 Cazenave et Schedel, Abrege Prat. des Maladies de la Peau, Hvo. Par. 1828, p. <).— J.Aber- nethy. Lectures on the Theorv and Practice of Surgery, 8vo. Lond. 1830, p. 67. —J. Stevenson, Trans, of Med.- Chirurg Soc. of Edin. vol. ii. p. 127. — If-'. Gibson, in Ibid, vol. iii. p. 94. — Labauche, Nouv. Biblioth. Med. t. vi. p. 59 Travers, in Lond. Med. and Phys. Journ. vol. Ivi. p. 439 Higginbottom, in Ibid, vol. Ivlii. p. 223 Slorer, in Ibid. p. 227. — Earle, in Ibid. vol. lix. p. 22 Cases, in Ibid. p. \7. —Lawrence, in Ibid. p. 225. — J. Arnott, in Ibid. vol. Ivii. p. 193. ; and Lond. Med. Gazette, vol. xiv. p. 218. — W. Young, Glasgow Med. Journ. vol. ii. p. 241. — J. H. James, Oljserv. on the General Principles, and on the Nat. and Treatni. of Inflammations, 2d ed. p. 370. — /"/ojvy, (iazftte Medicale, No. 42. 1833. (On cerebral iiffictions from) ; et Clinique Med.i'vc.Svo. Paris, 1832, p. 'A'M—Uicord, Lanccttc l-'ran<;aise, Wi'l, passim, et No. 52. 1833. (Mercurial vintmcnt fur.]— Dnpnytrcii, Lancet, No 543. p. 66.'). (On phlegmonoid erysip.) — Ali- berl, Med. and Surg. Journ. vol. v. p. 174 Good, Study of Med. by Cooper, vol. iii. p. 72. 3d edit llayer, in Diet, de Med. et Chirurg. Prat. t. vii. p. 483. (Hecom- mcnds incisions, and gives due ereilil In the originator of the yractice.) — J. Jl-ulldcK. Mi.lical Quarterly Review, vol.ii. p. 183. (Colchicuiuu'ilU t/u' all, iilinc sttbearlwtiates.) — Crampton, Med. and Surg. Journ. vol. v. ji. 369. — .S'. Cooper, in Ibid. vol. ii. p. 773 Bury, Med. Gazette, vol. xii. p. .533. — Elliotson, in Ibid. vol. xi. p. 132. ./. Burns, Principles of .Surgery, vol. i. p. Is8 Thcden, Bullttin Gener. de 'I h^rapeutique, May, 1834. (On com- pression in'Jhc trealmcnt if phlegmonoid erysip.) ,S'. Coiiper, iJectures on Surgery, in Lond. Med. and Surg. Journ. vol. il. p. 77.) — Macfarlanc, Clinicil Reports, &c. <;i.ihKOW, 1H33. ; and Julmsun'f. Med. Cliir. Rev. July 1831 — £, A/'i^ott'f/, Dublin Journ. Of Med. and Chem.' Science, vol. vi. p. 161.— Berndt, Encyclop. Worterbuch d. Medicinischen Wissenschaften, t. xi. p. 478. — J. Arm- strong, Lectures on the Nature and Treatment of Acute and Chronic Diseases, edited by J. Bix,Svo. Lond. 1834. ( The account of erysipelas is imperfect, confused, and interlarded with cant.) ERYTHEMA. — Syn. 'EpLSo^a (from 'iftv- Bo:;, red), Gr. Erysipelas, Celsus and Galen, Erysipelas idiopathicum , Sauvages. Dartre (rythimoide, Alibert. Die Rothe, Hautrothe, Germ. Erytheme, Fr. Classif. — 1. Class, Febrile Diseases ; 2. Order, Inflammations (Ctti/e(i~). 3. Class, Diseases ot the Sanguineous Function ; 2. Order, Inflammations (Good). III. Class, I. Order (Author). 1. Defin. — Superjicial redness, with burning pain, of a part of the integuments, varying in ex- tent and Jm-m, disappearing innmentarili/ on pres- sure, usually of an acute character, and uiiinfec- tious. 2. I. Description. — The varieties of frvS''ew!a and of erijsipelas have been confounded together by many writers, — a circumstance almost un- avoidable, when it is considered, that several states of the one are merely modifications of certain forms of the other ; distinctions between them be- ing rather conventional and artificial, than essen- tial, distinct, and unvarying. Hippocrates used the term erythema merely to signify simple red- ness of a part. Callisen, Sauvages, and Rostan employed it to designate the slightest grade of ery.sipelas. J. P. Frank and J. Frank applied it to several aflfections of a chronic kind, entirely distinct from those to which it has been given by recent British and French pathologists. Cullen viewed it as a superficial inflammation of the in- teguments, but little, or only symptomatically, affecting the constitution ; and erysipelas as an affection primarily, and chiefly of the whole system. Willan, Bateman, and Rayer con- sidered erythema as generally connected with more or less constitutional disorder, — a circum- stance that cannot be disputed, although such disorder is frequently latent, or but little evident. Dr. M. Good has detached two of the most common forms of complex erysipelas, viz. the phlegmonoid and cedematous, from that head, and comprised them under this, — an arrange- ment in so far improper, as intimately allied and serious affeciions, depending upon veiy manifest febrile disturbance of the system, are thereby separated, and certain of them placed in con- nection with others unattended by any marked disorder, and of comparatively little importance. — Erythema is either primary, and proceeding from local causes ; or symptomatic of some other dis- ease, or of constitutional disorder. 3. i. Pri.mary or Idiopathic Erythema pre- sents various modifications, according to its causes and seat. — A. Er. Intertrigo, Saw acvs, Willan — E. ab Acri iuquilinn, Cullen — Ecirrchure, Fr. — Fret, or Excoriation of the Skin — generally pro- ceeds— (a) from the friction of two contiguous surfaces, particularly in fat persons, as in the upper parts of the thighs, arm-pits, &c. ; — (h) or from the irritation of morbid secretions coming or remaining in contact with parts, as of the perspir- ation in the groins, and below the mammaj ; or of the leucorrheal discharge, or catamenia, and of the alviiie and urinary excretions, particularly in the course of other diseases; — (c) or from chemical ERYTHEMA— Symptomatic — Canosrc. 837 or mechanical irritants, and artificially from si- napisms, or ammoniacal and terebinthinated lini- ments, &c. ; — (rf) or from excessive heat, or vicissitudes of heat and cold, or the rapid abstrac- tion of heat — E. pernio, or chilblain ; — (e) or from pressure, especially lying long in one posi- tion— E. paratrima, Sauvagfs; — (_/') or from the stings and bites of insects, &c. — £. punct ura of Sauvages. 4. When the epidermis is partially removed in this species of erythema, either by friction of the surfaces, or by the excoriation produced by acrid secretions, as in the intertrigo occurring in fe- males and infants of a full habit from neglect of due cleanliness, a serous or st-ro-puriform fluid exudes from the inflamed surface during some days ; but vesicles are not formed, nor is there any manifest swelling of the part as in erysipelas. 5. ii. Symptomatic Erythema — I'Erutheme Stjmptomatique, Biett, Rayer, Cazenave, &c. — often accompanies other eruptions, especially at their commencement and termination, as re- marked by Billard; and is occasionally com- plicated v\ith them. It most frequently is dependent upon disorder of the digestive organs; and is often observed in children about the pe- riods of dentition, in plethoric or fat persons, and at the critical periods of female life. It is most commonly caused by the ingestion of irritating substances, and by certain kinds of food, espe- cially in irritable temperaments, feeble or deli- cate constitutions, and individuals of a peculiar diathesis. 6. A. Fugacious Erythema — E.fugax, Wil- LAN, Bateman — the maculce vnlnticiE of various writers — consists of irregular and evanescent red patches, with increased heat of the part, which appear successively on the arms, neck, breast, and face, in vaiious febrile diseases, and in bilious fevers and diarrhoea (Bateman) ; often denoting, as Hippocrates has remarked, a tedious and dangerous malady. This variety sometimes attends derangements of the digestive organs, and, more rarely, hysteria and hemicrania. It is not usually followed by sensible desquamation of the cuticle ; but exceptions to this occasionally are observed. 7. B. Shining Erythema — E. Z.239.—Cullen, First Lines, &c. ^ 21i.—Lccourt- Chantilly, Siir rErythemo et I'Erysipfele, 4to. Paris, 1804. — J. Frank, Prax. Meii. Universe Prajcepta, pars i. vol. ii. p. 350. — Ba/etiian, Synopsis of Cut. Diseases, by Thomson, p. \G1. — Uncicnroori, Dis. of Cliildren, 8th edit. p. 116.— Plunibe, On Dis. of tliejSkin, 2d edit. p. 449. — P. Rayer, Traite Theor. et Prat, des Malad. de la Peau, t. ii. p. 221. , et Diet, de Med. et Chirurg. Prat, t. vii. p. 490.— /r. C. Bfiidy, On Cut. Diseases of Child- hood, yvo. p. IfiG. — Caxenave et Schedel, Abrt'ge Prat, des Maladies de la Peau, p. 4. — C. Biilard, Traite des Malad. des Enfans, &c. 8vo. 1828, p. 109. — M. Good, Study of Medicine, 3d ed. vol. ii. p. 3G4. — lloclieet San- son, Nouv. Elt'm. de Pathologic Med. Chirurg. t.i. p.3.51. — J. Paget, Edin. Med. and Surg. Journ. vol. xl. p. 3 Ders, Encyclop. Werterb.der Medicin. Wissenschaf. &c. vol. xi. p. 508. EXANTHEMATOUS DISEASES. — Syn. Exantliemata. " E^atdrifxa, (from l^avQiai, I break forth, or efHoresce). Eruptive Fevers, E.rciiithenis. Cl.assif. — 1. Class, Febrile Diseases; 3. Order (Culleii). 3. Class, Dis. of Sanguineous Functions; 3. Order (Good). Tlie 3d Order, of Willun and Batemait. III. Class, III. Order (Authm-, in PreJ'ace). 1. Defin. — Diseases usually arising from specijic causes, and capable of perpetuating their kind ; evincing, at their commencement, diminished vital pouer and function, followed by reaction throughout the vascular system ; but expressed chiefs in the mucous surfaces and skin, especially in their earlier stages. 2. The term e^avOn/jia was employed by the ancients to signify any cutaneous eruption, whe- ther acute or chronic, febrile or non-febrile ; and a similar extension of its signification is very ge- nerally observable among medical writers until the commencement of the last century. The no- sologists who wrote about the middle, or towards the close, of that century, either differed very remarkably as to the diseases which should be ranged under this order, or did not separate them from otiier febrile or inflammatory complaints. Sauvages, one of the earliest to make the distinc- tion as to classification, placed the e.xanthemata as the^'rst order of his third class, Inf animations ; and comprised plague, small-pox, pemphigus, measles, miliary fever, purpwa, erysipelas, scar- latina, essera, and aphth9aX^oj. Oculus. Das Aitge, Germ. (Eil, Ft. Ucchio, Ital. Ci.ASsiF. Sfecial Pathology — Mordid Structures. 1. The progress of knowledge, in respect of diseases of the eye, has been very remarkable since the end of the last century; owing chiefly to the researches and writings of Beer, Schmidt, IIiMLY, Scarpa, Benedict, Demours, Ed.mond- STON, Vetch, Wardhop, VVei.ler, Travers, Gumirie, Mackenzie, and Lawrence. In the account that will be lure given of these diseases, those only which are inflammatory, and conse- quent upon inflammation, will be considered. Functional disorders are treated of in separate articles. (See Amaurosis, Sight, &c.). The order in which these maladies will be discussed, will differ but little from that adopted in the truly valuable works of Mr. Lawrence and Mr. Mac- kenzie ; to which I have much pleasure in stating my obligations. — The latter of these writers, and J. Frank, treat first of the diseases of the eyelids and lachrymal apparatus, and next of the eye itself. Mr. Lawrence enters at once upon the consideration of the inflammatory diseases of the tissues of the eye-ball, and concludes his cla.ssical production with those of the appendages. Either arrangement is unexceptionable ; but I shall fol- low the latter, merely as being more congruous with the medical view of the subject, to which I shall chiefly confine myself. The surgical treat- ment of such of those diseases as require it, must be studied in the works now referred to, or in Mr. Cooper's Surgical Dictionary.'! shall, there- fore,^Vsf treat of inflammations affecting the ex- ternal coats of the eye, and afterwards of those attacking the internal tissues of the organ. I. Inflammations of the Eye. — Syn. Opft- thalmia ; Lippitudo, Celsus ; Augenentzundung, Germ.; Ophthalmie, Fr.; Otta Imia, lta.\. Classif. — 1. Class, 2. Order (Cullen), 3. Class, 2. Order (Good). III. Class, I. Order (^Author). 2. Defin. — Pain in one or both eyes, with vaS' cular injection of one or more 0/ their constituent tissues, and constitutional disorders 3. Inflammations of the eye are of various grades and kinds : they commence in any one of the different tissues forming the organ ; and they are thus limited more or less, and for a longer or shorter period of their course, according to the temperament, habit of body, and diathesis of the patient ; to the state of predisposition, and the nature of the exciting causes ; and to the treat- ment adopted. Before considering separately the difi'erent varieties of ophthalmia, I shall Jirsl take a general view of their causes ; and neit of the numerous forms they present, owing to the varied concurrence of predisposing and exciting causes. 4. i. Causes. — ^. The predisposing causes of inflammation of the eye are nearly the same as those of inflammatory diseases of other organs. — (a) Temperament, idiosyncrasy, and consequently hereditary disposition, evidently favour its occur- rence. The colour of the eye has apparently but little influence, for Dr. Smith found the re- lative proportion of cases in light eyes nearly the same as in dark eyes. — {b) Morbid diathesis, especially ihe scrofulous, has the most remarkable effect, and next the gout if and rheumalie. These not only dispo.se to, but also modify, the disease, and its consequences, and re«?•«- lent ophthalmia closely resembles the acute gonor- rhoeal. In the latter, however, the swelling of the conjunctiva oculi is greater, and that of the eyelids somewhat less, than in the former. The discharge, however, is thicker, and perhaps more abundant, and the constitutional disturbance greater, in the gonorrhoeal, in which the peculiar granulated change of the conjunctiva of the lids does not occur. In purulent ophthalmia, the dis- ease begins in the lids, and advances gradually; but in the gonorrheal, it seems to commence in the conjunctiva cculi : in one case, JMr. Law- rence saw it distinctly begin there; and it at- tacks most violently and proceeds most rapidly. The former generally continues long, aftects both eyes, remits, or returns, rarely destroys the eye by sloughing, and is much less destructive ; w hilst the latter more frequently afl^ects only one eye, and the cornea is much oftener destroyed by sloughing. This disease is uncommon, occurs in single instances, and in persons who have had or who still have, gonorrhoea; whilst purulent ophthalmia usually affects numbers, particularly when many live together. 60. d. Prognosis. — Nine casesout o' fourteen relat(;d by Mr. Lawrence in his treatise on this disease, were seated in one eye ; out of the four- teen, loss of vision took place in nine cases from sloiighing, suppuration, or opacity of the cornea. In two cases, one eye was lost, and the other recovered. Sight was restored in the othtr five, with partial opacity of the cornea and anterior adhesion of the iris in three of the number. This writer adds, that so short a period intervenes between the commencement and full develop- ment of the complaint, that irreparable mischief 862 is generally done to the eye before aid is resorted to. In the first or second stage, its progress may be arrested ; but success even thus early must not be reckoned upon. If the cornea still possess its natural clearness, the eye may be saved; but if it have become hazy or dull, and particularly if it be white or nebulous, serious consequences will ensue. Sight may, however, he restore.! after partial sloughing of the cornea ; and ulceration may occur in its circumference without injury to vision. When both eyes are successively attacked, the disease is often less severe in the second, which, therefore, is saved ; but exceptions to this occasionally occur, the sight of both being lost. 61. e. Causes. — Dr. Vetch found that the matter of acute purulent ophthalmia, applied to the urethra of the same individual, excited no disease; but that, when it was applied to the urethra of another person, it produced a virulent gonorrhoea : he therefore infers that the matter from the urethra, coming in contact with the eye of the same individual, would not occasion gonorrhoeal ophthalmia. But Mr. Mackenzie, Mr. Lawrence, and Dr. Jacob, adduce cases from their own practice, which were produced in this way, and refer to others from Wardrop, AsTRUc, Allan, and Foot. It has been inci- dentally mentioned by Scarpa and Beer, that gonorrhoeal matter applied to the eye excites only slight inflammation ; but they do not refer to the source whence it was derived — whether from the same person or from another — the cases ob- served by Lawrence and the other writers just mentioned, show that this statement does not hold in respect of the same person, and that he may infect himself, although such infection is not so frequent, as the inattention of gonorrhoeal patients, particularly in the lower classes, would lead us to expect ; and the experience of War- drop, Delpech, I5acot, Allan, and Mackenzie fully proves that the disease may be caused by the application of gonorrhoeal matter from a dif- ferent person, although, for obvious reasons, this cannot be a frequent occurrence. It is, there- fore, placed beyond doubt, by the cases observed by the above writers, that the complaint may be caused by the contact of gonorrhoeal matter — 1st, from the same individual, and, 2dly, from another. But as, in the greater proportion of cases of gonorrhoeal ophthalmia, no application of matter, either from the same or another in- dividual, can be traced, in what other way does the disease arise? It has been very generally imputed to metastasis in all such ; and the dis- charge from the urethra has been said to be sup- pressed by St. Yves, R. cuter, Scarpa, and Beer, but erroneously, as contended by Delpech and Lawrence. In the cases which this hist writer has recorded, the discharge was not stopped in any one, although it was generally lessened, but in some not at all. He therefore concludes that, since the complaint may occur while the discharge from the urethra continues, and since it does not take place when that discharge is stopped, we cannot admit that it owes its origin to the cessation of the urethral discharge. 'J'his supposed metastatic form he refers to the state of the Constitution, considering it as analogous to those succesMve attacks of ditferent parts whic^h are observed in goiit and rheumatism ; and he EYE' — GoNonRH(EAL Ophthalmia. remarks that, although direct infection operates equally on the eyes of both sexes, this particular form seems confined to the male. Beer says that he has observed it only in young, robust, and plethoric men. 62. f. Treatment. — The antiphlogistic plan, and particularly vascular depletion, has been car- ried to the utmost extent, sometimes with com- plete, but as often with only partial, success. Of six cases which Mr. Lawrence saw at an early period, and treated by extensive depletion, general and local, loss of the eye occurred in one only, — a most satisfactory evidence of the pro- priety of the practice. But whenever the disease comes late under treatment, no plan can succeed, so violent and rapid is the disease. The appli- cation of strong astringents and escharotics to the eye, in order to arrest its progress, has been ad- vised, as its consequences have been so destruc- tive to the organ ; and the nitrate of silver oint- ment, already described (§ 49.), has been re- commended by Rlr. Guthrie. The success of this practice in the severe purulent ophthalmia, warrants its adoption in this; and active deple- tions, found so successful by Mr. Lawrence, in an early stage, may precede it. One circum- stance, however, may militate against our infer- ences in favour of it, namely, the original and principal seat of disease being in the palpe- bral conjunctiva, in purulent, and in the con- junctiva oculi, in gonorrhoeal, ophthalmia, the pathological states are not therefore the same in both. Notwithstanding, both modes of practice may be conjoined with advantage, as Dr. Jacob suggests. The oleum terebinthinae, dropped into the eye, is deserving of trial. 63. Large and repeated bloodlettings from the arm or jugular vein, followed by local depletion and the remedies above advised (§ 62.), are, in the present slate of our knowledge, most to be depended upon. But if sloughing or suppura- tion of the cornea have occurred, this treatment will be of no service. Mr. Lawrence has seen mercury employed without any advantage, and he places no reliance on the reproduction of the urethral discharge, as advised by Richter, Scarpa, and Beer. He also thinks blisters to be of little use. The eyes should be very fre- quently cleansed by the usual means. VVhen the inflammatory symptoms have been com- pletely and quickly subdued, the efl^ects will pass ofl^in a little time without astringents and tonics; but when the conjunctiva becomes pale and flabby, and the patient pallid and weak, the pu- rulent discharge being still abundant, astringents locally, and tonics internally, are usually recom- mended. When sloughing or ulceration of the cornea is attended by signs of great depression, quinine and generous diet are necessary, and astringent lotions are sometimes of service. Mr. Lawrence prefers a solution of from two to ten grains of alum in an ounce of water, the solution of the nitrate of silver, and undiluted liquor plumbi di-acetatis. 64. g. Mild gonorrha'al Inflammation of the Conjunctiva. — Mr. Lawrence has described a very slight variety of gonorrlioeal ophthalmia, consisting of external redness ot a bright scarlet tint, with distension of the superficial vessels of the globe, and increased mucous secretion. In still slighter attacks, the redness is not deep nor gene- EYE — ScROFuious Ophthalmiji. 863 ral, the membrane is not swollen, the secretion is but little increased, and the pain is trifling. The severer grades of this form approach to those of acute purulent ophthalmia, tlie conjunctiva being red throughout, tumefied, and secreting a copious yellow mucous matter. These milder states of the disease usually occur in patients with gonorrhoea of a rheumatic or gouty dia- thesis, and most frequently in conjunction with rheumatic afTections consequent upon gonor- rhcEal disease of the urethra. 65. h. The Treatment consists of antiphlogistic remedies, co-ordinate with the severity of the attack, and the strength of the patient; followed by astringent applications — the best of which, in the opinion of Mr. Lawrence, is the solution of lunar caustic. ? 66. D, Pustular Ophthalmia — Pustular IiiJiammatioH of the Conjtmctiva. — a. Inflam- mation of the conjunctiva, with small pustules, or phlyctenulic, sometimes occurs from cold or other causes, and resembles, in its appearance, and occurrence chiefly in persons before puberty, the strumous form of the disease. But it is met with in those who are not strumous ; and it does not exhibit the other symptoms of scrofulous or catarrhal ophthalmia : it therefore constitutes a distinct variety. It is characterised by distended fasciculi of vessels upon the conjunctiva, which run towards the cornea, either terminating at its margin, or extending a short way over this boundary, and there form a small reddish or whitish elevation. This elevation contains, at first, a little watery fluid (Phlyctenie), but it af- terwards assumes a pustular appearance. Some- times only one is observed, at others there are a greater number extending around the margm of the cornea. They are usually small ; but, when single, they are occasionally as large as a split pea. They are not attended by much pain or in- tolerance of light. If the complaint is neglected, the pustules may ulcerate, and the ulceration spread. 67. b. The Treatment consists in the application of leeches and blisters in the more acute cases. The disorder generally disappears, under ordinai'y circumstances, without ulcerating, when due at- tention is paid to the secretions and excretions; milti -aper^'gnts and a saturnine lotion are usually all that are required. 68. E. Scrofulous Ophthalmia. — Syn. Scrofttlous Tnfiammation of the Conjtmctiva ; Stru7tious Ophth.; Infiam, of the Conjunctiva in Scrofulous Constitutions. — Scrofulous children are very liable to this disease. It is sometimes the first manifestation of the strumous diathesis ; and, if neglected, it often becomes the source of impaired, or entirely lost, vision. It seldom at- tacks infants before weaning ; but, from that period to nine or ten years of age, it is very pre- valent ; as many as three fourths of the cases of ophthalmia at this period being scrofulous. Some- times oidy one eye is affected, at other times both are inflamed from the first ; and very often the disease passes from the one to the other. When both are simultaneously attacked, one is usually much worse than the other. 69. a. Causes. — a. The predisposing causes are those of ScnoFui.A (see that article) which may be very generally referred toclimate, air, exercise, food ; and to the habits, health, and constitution of the parents. — B. The exciting causes z.r& ex- posure to cold and moisture, injuries to the eye, irritating matters in the air, excessive use of the organ ; the common causes of catarrhal ophthal- mia, or an attack of this complaint ; teething, hooping-cough, and more especially cow-pox, exanthematous diseases, and porriginous erup- tions on the scalp and face. Measles and small- pox very frequently excite it ; and Juengken represents vaccination as one of its most common causes. He disapproves of the practice of vacci- nating children in the first year; as he considers that a certain degree of constitutional vigour is required to remove from the system the poison introduced by inoculation ; and that, when the child is weak or too young, the morbific matter is not thrown off, and calls into action the scrofu- lous diathesis. Beer states that, in Breslau, where ninety-five cases out of one hundred of ophthalmia in children are scrofulous, the streets are narrow and filthy, and the food of the poorer families unwholesome. Mr. Lawrence and Mr. Mackenzie think that the complaints described by Mr. War drop under the denomination of " Exanthematous Ophthalmia," and by Mr. Chris- tian under the name of " Porriginous Ophthal- mia," belong in every essential respect to the dis- order now being considered. 70. b. Symptoms and Course. — External red- ness is often inconsiderable, and most apparent at first in the linings of the lids. It is generally only partial in the conjunctiva oculi, particular en- larged vessels, or fasciculi of vessels, running in this situation towards the cornea, and extending over its margin, or stopping short of it. Where the fasciculi terminate, small phlprtence or pustules form, and contain either a little clear or a yellow- ish fluid. These pustules may be seated on the sclerotica or cornea, but more frequently on the boundary between them ; and may be single, or several. Their presence has induced Mr. Mac- kenzie to view strumous ophthalmia as an erup- tive disease. — The intolerance of light is extreme, and characteristic of the complaint. The lids are spasmodically closed, and resist any attempt to open them ; end, when opened, the cornea is turned up under the edge of the orbit, and away from the light. The child puts all the muscles into action to protect tlie organ ; and hence a peculiar and characteristic physiognomy is as- sumed. It seeks the darkest part of the room, or presses its face against the pillow in bed, to escape from the light. This excessive sensibility of the retina (Photophobia scrofulosa) \s not caused by inflammation, nor is redness even essential to it; for it is often very remarkable where the eye ap- pears almost natural; and the child opens its eyes and sees as well as usual in the dusk. This dis- ordered sensibility is altogether sympathetic and functional ; and is dependent, as Rlr. Lawrence thinks, on the ccmdition of the alimentary canal. I would impute it rather to the state of the or- ganic nervous system. 71. There is a copious flow of tears at the commencement. The external surface of the or- gan suffers great irritation, extending to the lachrymal gland, so that when we attempt to ex- amine the eye, or to expose it to the light, there is a copious discharge of scalding tears, caus- ing redness of the lids, and excoriating them and the face. Owing to the itching and soreness 864 EYE — Scrofulous Ophthalmia. thereby occasioned, the child rubs or scratches the parts, which -become sore and pustular, and produce a discharge which encrusts ; the affec- tion ultimately extending over the face and forehead, and in its worst form resembling crusta lactea and porrigo larvtiUs. The edges of the lids are often red, swollen, and painful. There are sometimes an acnd secretion from, and excoriation of, the nostrils; with redness and swelling of the alfe nasi and upper lip. The ears are frequently red and sore, or ex- coriated behind, and the absorbent glands of the neck are swollen. The bowels are cos- tive, the tongue wliite or furred, the abdo- men distended, the breath foetid, the appetite is morbid, the head and sometimes the skin are hot, and the child is restless and grinds its teeth when asleep. The symptoms are worse during the day, but remit some wha in the dusk of evening. The inflammation of the eye may sud- denly subside, and return as suddenly ; and very slight exciting causes will bring back the com- plaint ; which may thus continue with slight in- termission for months, or even for years. The affection of the eyes may also alternate with some other disorder, or symptoms in remote parts. In the more chronic cases, the health suffers greatly from seclusion from light, air, and exercise ; and the patient becomes pale, etiolated, and sickly, with a dry and harsh skin. 72. c. The Consequences of the diseai;e on the cornea are often serious, although the external redness may not be great. The phlyctenular or pustular elevations in the cornea may subside, leaving s/ig/ii opaciVi/, or considerable thickening of the corneal conjunctiva with greater and more permanent opacity ; but they more commonly ulcerate, in an irregular form, and with a ragged edge, the ulcers sometimes extending superficially, or making their way through the cornea to the anterior chamber, occasioning prolapse of the iris. The vessels passing over the cornea may, without forming pustules, occasion thickening and opacity, which may proceed so far as to render the whole corneal covering thick and vascular (Pannus). Opacity from interstitial deposition may also occur, either with or without enlarge- ment of the proper corneal vessels ; and, occord- ing to Dr. Frouiep, a brownish red discoloura- tion, from interstitial effusion of blood, may super- vene. In addition to the opacity, the external layers of the cornea may yield from the pressure from behind, and form an external protuberance (Staphyloma}; or adhesion of the iris to tiie in- ternal surface of the cornea may take place. In some instances, the inflammation extends to the sclerotic coat and iris, and even to the parts seated boliind them. This occurs most frequently in prolonged or after repeated attacks; and occa- sionally is followed by structural change of these parts, or by dropsical enlargement of the globe. 73. d. Diagnosis. — The extreme intolerance of light, and copious flow of tears in connection with tiie trifling external redness, the pustular elevations of tlie conjunctiva, suflicienlly dis- tinguish this affection, wliich fn^fiiicntly, also, co- exists with enlargement of tiie glands and scro- fulous irritation of the nostrils, lips, behind the cars, and in other ])arts of the body. In many instances, however, of conjunctivitis in children, it is difKcult to draw a distinction between the common and scrofulous forms of the disease ; ),he characters of the one gradually merging into those of the other. This is more especially the case when the affection of the eyes is associated with, or consequent upon, either acute or chronic cutaneous eruptions, particularly such as affect the scalp and face. 74. e. The Prognosis is favourable, if the cornea be not affected, or if superficial or slight opacity, owing to deposition between its laminee, only be present. Mere vascularity of the cornea will dis- appear ; but if it be attended by thickening and opacity, the change will be more or less per- manent. If ulceration have taken place to con- siderable depth or extent in the cornea, and especially if it be accompanied with affection of the iris, or lesion of the sclerotic coat, vision will be more or less impaired. 75./. Treatment. — a. Constitutional or inter- nal means are most important in this complaint. After the bowels have been freely evacuated, a course of tonics should be prescribed, with alter- atives, to promote and improve the various secre- tions. A full dose of calomel and rhubarb, !and afterwards equal quantities of the compound in- fusions of gentian and senna, or the compound decoction of aloes, repeated according to circum- stances, will be most serviceable. In some cases, an emetic will advantageously precede the purga- tives. Having thereby evacuated morbid matters, and excited the secreting and excreting viscera, tonics, especially the sulphate of quinine, will be productive of the greatest benefit. During the course of tonics, the hydrargyrum cum creta should be given on alternate nights, with the carbonate of potash and rhubarb or jalap. If the skin be pale, or the child languid and etiolated, the preparations of iron — especially the tinctura ferri ammonio chloridi,-the vinum ferri, the ferrom tartarizatum — may be preferred. An electuary of sesqui-oxide of iron, confection of senna, a:^d treacle, may occasionally be substi- tuted — particularly on the day following that on which the powder was taken. In some in- stances, the decoction of bark, with sulphuric acid may be alternated with these tonics, especially after mercurials have been laid asiile. Cascarilla with soda, or any of the tonic infusions, with small doses of the chlorate of potasli, may likewise be tried. 76. /3. Pegimen and diet are most important items in the treatment. The patient should be warmly clothed, and take regular exercise in the open air, particularly when it is dry and bracing. Change of air, occasionally to the sea-side ; and warm, tepid, or cold bathing, are also beneficial. In weak or irritable children, warm or tepid bathing, salt having been added to the water, or in sea water, should be first adopted ; and cold bathing tried as the iiealth improves, 'j'hc diet should be duly regulated ; animal food in mo- derate quantity, suitable vegetables, and ripe baked fruits, being allowed ; but all fermented liquors, indigestible substances, and rich crusts or pastry ought to be withheld. The usual fari- naceous food should always constitute a chief part of the diet. Tin; child ought to wear through the day a dark shade before the ryes ; and sleep in a dark but well- aired room, with the head consider- ably raised. ^7. y. Local Treatment, — When the external inflammation is considerable, or approaches the characters of common ophthalmia, and is at- tended by symptomatic disturbance of tlie system, local bleedings, and the rest of the antiphlogistic regimen, should be prescribed, particularly at an early stage of the complaint. The intolerance of light is no indication of the propriety of local de- pletion ; for it is generally aggravated by the practice, and relieved by tonics and a light and nutritious diet. JMr. IMACKtNziE advises, parti- cularly in chronic cases, and in the seat of the vascular fasciculi, scarijications of the eyes and lids. Fomentations with warm water, or a warm decoction of poppies and chamomile flowers, are of service. Applications as warm as they can be borne are more beneficial than those that are cold, which are not suited to scrofulous persons. The steam of warm water, to which camphor and opium have been added, is also useful ; or a few drops of an opiate may be allowed to run be- tween the lids. After the painfully acute symp- toms have been removed, and the bowels freely evacuated, a solution of from two to six grains of lunar caustic in an ounce of water, dropped be- tween the lids, is very serviceable in diminishing the irritability of the organ, and in healing slight ulcers. A stronger solution may be applied by a pencil to the ulcerated part, and the red precipi- tate ointment to the lids at night. In older children, bliiters behind the ears or on the nucha are serviceable ; but they ought to be removed after five or six hours. If thickening and opacity of the cornea be going on, the free administra- tion of calomel or hydrarg. cum creta, either alone or with James's or Dover's potcder, is advised by Mr. Lawrence, until the mouth is affected. "When incrustations form in the vicinity of the organ, tepid ablution, and the mild ointments, at first alone, and afterwards with the oxide of zinc, when the state of the complaint and of the system, or the previous treatment, will admit of drying them up, should be employed. — In cases attended by ulceration of the cornea, it will often be necessary to touch the part, every second or third day, with lunar caustic, as directed by Scarpa. Tlie application of belladonna to the eye or its vicinity, to cause dilatation of the pupil, will occasionally be serviceable in preventing either adhesion or prolapse of the iris. — Relapses should be guarded against by a careful examina- tion of the eye from time to time, by attention to the digestive organs, and by an invigorating regimen. 78. F. EXANTHEMATOUS OpHTHALJIIA. SyN. Kxanthematoiis Conjunctivitis — Injiammation of the Conjunctiva occurring during Exunthematous Fevers. — Inflammation of the conjunctiva is fre- quently observed in the course oj, or consequent ■upon — (a) Small- pox ; (b) Measles ; (^c) Scarla- tina ; and (d) Erysipelas. — As to each of these associations, and the treatment most appropriate to it, I proceed to offer a few observations. 79. a. Variolous Oplithatmia — Conjunctivitis Variolosa.— a. Small-pox causes inflammation of the lids, of the lachrymal sac, and of the eye, dur- ing the active stages of the eruption ; and it gives rise to inflammation of the eye, and of the con- junctiva of the lids, and of the nasal duct, after the eruption has subsided. When variolous pus- tules form only on the external surface of the eiye- Voi,. I. EYE — ExANTHEMATOus Ophtiialiuia. 86.5 lids, or the ciliary margins, the afl'ection is com- paratively mild. In confluent or severe cases of small-pox, the lids are much swollen and closed, and the oozing of matter usually agglutinates them, and confines the secretions poured out in the conjunctiva. As the disease subsides, the lids are opened, and the eye appears to have been but little aft'ected. They are, however, often somewhat injured. The pustules on the ciliary margins partially destroy the cilia, and render the margins uneven and liable to inflammation from slight causes. 80. B. When the inflammation extends to the globe during the eruptive stage of small-pox, con- stituting true or primary variolous ophilialmia, and occasioning pustules on the conjunctiva or cornea, the affection is very severe, and is often rapidly followed by suppuration or sloughing of the latter, and by the more serious consequences of these changes. As the eyes are closed, and cannot easily be examined, it is important to ascertain by symptoms the existence of inflammation of the globe. I'his is indicated by a sense of dryness, stiffness, or of sand in the eye, with pain in the ball, increased on moving it, aggravated by light although the lids are closed, and attended by augmented lachrymal discharge as the affection proceeds. 81. y. A form of the disease may occur two, three, or four weeks after the desiccation of the small-pox pustules (secondary variolous oph- thalmia). It is generally more mild in this case ; but one or more pustular elevations may form on the cornea, with redness of the sclerotic, lachry- mation, pain, and intolerance of light. It does not terminate by sloughing ; but suppuration and ulceration often supervene, leaving more or less opacity, or a permanent white cicatrix, limited to a small extent, as the surrounding haziness of the cornea is removed, vision being partially or com- pletely restored. In scrofulous constitutions, it assumes the characters described above, and de- generates into the chronic form. 82. J. The Treatment of these j'orms of affection must be conducted conformably with the prin- ciples already explained. When the pustules are confined to the lids, they may be touched, in an early stage, with the lunar caustic, in order to arrest their progress, as advised by JM. Vel- PEAu ; or they may be opened, and the matter evacuated ; the incrustations afterwards formed being removed by emollient applications and fre- quent tepid ablution. In the two other states, the danger to the organ is much greater, particu- larly in ihej'orm attending the eruption. But, as the affection of the eyes is most common in the confluent and adynamic states of small-pox, it cannot be advantageously combated by such free depletions as some surgical writers have advised. i In many cases, local bloodletting and free purg- ing may be of great service ; but, when the con- ■ stitutional powers are much depressed, no plan of j ascertaining the state of the globe should be neg- lected^ and a somewhat similar treatment of the pustules to that just advised should be practised as early as possible, to prevent their develope- I ment, and be followed by such astringent applica- j tions, alternated with soothing means, as the cir- cumstances of the case may suggest. In the se- condary variolous ophthalmia, local depletions, active purgatives, or even an emetic, resorted to at any 3 K 8G6 EYE — Inflammation of the Sclerotic Coat, etc. early stage, are more appropriate and beneficial. But the subsequent use of astringents will gene- rally be required. In all the forms, tonics will afterwards be necessary ; and the patient should be kept in a perfectly dark, but well-aired, apart- ment during the course of the disease. 83. b. Morbiilous Ophthalmia — Conjunctivitis morbillosa. — Inflammation of the conjunctiva is a common attendant on measles. It is generally of a catarrhal kind, and may be either primary — preceding or accompanying the eruption ; or se- condary— remaining after, or following the dis- ease at a short interval. Sometimes pustules form on the cornea, and pass into ulceration. There are generally much pain and intolerance of light in this variety ; but it seldom assumes a severe, although often a chronic, character. The Treat- ment consists of local depletion, in the more acute cases; followed by active purgatives, diaphoretics, blisters behind the ears or on the nucha, tepid u-aslies, and the protection of the organ from ligiit. 84. c. Scarlatinous Ophthahnia — Conjunctiritis Scarlatinosa. — Inflammation of the conjunctiva may occur in the course of scarlet fever, in simi- lar modes to those noticed in respect of the other exanthems ; and although not so common in scarlet fever as in measles, it is sometimes more severe in the former than in the latter ; ulcera- tion occasionally supervening to a greater or less extent. This is, however, often the consequence of neglect. The Treatment is, in every respect, the same as that directed for the morbillous form. 85. d. Erysipelatous Ophthalmia — Conjuncti- vitis Erysipelatosa. — Tlie inflammation of tiie conjunctiva attending cysipelas is preceded by redness and great swelling of the lids. In rarer instances, it follows upon an erysipelatous affec- tion of the throat and posterior nares ; and it is, in cases of severe affection of the face or scalp, often attended by much inflammation of, and effusion into, the cellular tissue surroundmg the globe. It is most common in persons past middle age, or of a cachectic habit of body. The con- junctiva of the lids and ball is more or less in- jected ; that of the latter often rises in soft yel- lowish red vesicles around the cornea, and occa- sionally it is affected in nearly a similar manner to the pustular varietii already described. In some cases the redness partakes of a yellow tint, and in others of a livid or brownish hue. The eye has a watery appearance, and the cornea is often hazy from the fluid collected on its surface, but it is seldom otherwise aflPected. As the dis- ease sub-ides, the copious lachrymation generally present U diminished, but the organ regains its natural state very slowly. The constitutional disturbance is very severe in this variety. (See EiiYSiPELAS. ) The Treatment consists of local diipletions, which, however, should be cautiously practised ; of emetics, purgatives, blisters, diapho- retics; and of opening the vesicles that form, with the point of a lancet. In an advanced stage, tonics, and other remedies suited to particular cases, are requisite. ii. Inflammation of the I'iioplr Exikunai, Tissues of the Eve. — A, Common Inflam- mation OF the Exieunai, Tunics. Svn. — Ophthalmitis externa Idiopathica, Bfkii ; Ophthalmi't Sclerotica, Vetch ; External In- JiammalioH of the Globe, Lawhencf; Co- tarrho-rheumatic Ophthalmia, INIackenzie, — Fhlegmonoid Sclerotitis. — a. Acute, — b. Sub- acute, — and c. Chronic. 86. Ciiaract. — Redness of the external proper coats of the eye, with pain, intolerance of light, increased lachrymal discharge, and febrile dis- turbance. 87. (J, Symptoms and Course. — Simple or com- mon inflammation of the eyes of persons other- wise healthy may originate in the conjunctiva or sclerotica ; but, when severe in either, it gene- rally extends to the other, and also to the cornea. It frequently also appears almost coetaneously in both coats; and it presents every grade of seve- .rity. The external redness usually begins on the anterior part of the globe, forming a zone around the cornea, and arises from small vessels advancing from the posterior part of the sclerotica to the part adjoining the cornea. As the inflam- mation proceeds, the redness becomes uniformly diffused in the sclerotica, and is of a pink, rose red, or almost violet hue. In the more severe cases, the distended vessels are seen under the conjunctiva, occupying the whole surfnce of the sclerotica, and generally running in nearly straight lines from behind forwards. When the inflam- mation is seated in both this coat and the con- junctiva, the difference as to tint and situation between the vessels of each is very remarkable. The patient complains of stifl^ness and dryness of the eye, is intolerant of light, and feels a burning or aching pain, with a sense of tension, or pres- sure, or of dust in the eye (^Xerophthalmia, or Opht. Sicca). The pain usually increases, and extends to the orbit and corresponiling side of the head ; the intolerance of light becomes greater ; and the pupil is contracted. As the disease ad- vances, the conjunctiva participates, its vessels are distended, and the cornea becomes dull, but not, at first, nebulous or opaque. In more violent cases, this membrane acquiies a bright red colour, or even passes into a state of chemo- sis. At the same time pain and fever increase, the inflammation extends to the lids, and the cornea assumes a greyish hue. The dryness characterising the commencement of the com- plaint gives place to lachrymation, which is increased on opening the eye to the light, or moving it. 88. b. The Effects that present themselves, as the disease proceeds in an ac^ite form, are observed chiefly in the cornea, and occasionally also in the iris. — The former becomes either vascular, and red or reddish l)rown, or greyish, and subsequently whits, cloudy, and yellow, as if pus were infil- trated into its substance. It often afterwards «/- cerates ; the ulcerations sometimes extending into the anterior chamber, and causing the usual con- sequences of this change. Adhesion, also, of the iris to the cornea may occur either with or with- out ulceration of the latter, but always with more or less opacity. When the cornea presents only the first stage of change, is greyish, cloudy, or white, ulceration may he prevented, or arrested if it have begun, by suitable treatment, and if it have not occurred, the cornea may regain its natural aj)pearance. 89. c. The sub-acute and chronic states of the complaint are characterised by h ss severity, but longer duration, of tiie symptoms described above, particularly those depending upon the EYE — Inflammation of the Scleuotic Coat, etc. 867 affection of the sclerotica. They often follow the neglected or inactively treated acute disease. In thcal redness, excepting a pink zone around tiie cornea. An effusion of whitish or yellowish matter takes place in the anterior chamber ; and the patient complains of pain and aching in the eye and forehead, of fulness or tightness in the organ, and of intolerance of light, especially early in the complaint ; these symptoms subsiding at more advanced periods. Its progress in children is not rapid. Mr. \Vard- liop considers the opacity to be seated in the in- ternal surface of the cornea; and that it arises from a number of round specks, which give a mottled appearance to this part, particularly in adults. lie also believes the effusion into tiie chamber, which has been generally considered pus, to be albuminous, and similar to that which causes adhesions, but not coagulable. 116. -B. HypiipiioH — or the presence of a yel- lowish matter in the anterior chamber, resembling, and usually called, pus, and attending or con- sequent upon inflammation — accompanies the affection now under consideration. But it more frequently supervenes, in the advanced course of inflammation of the external coats, from the burst- ing of an abscess in the cornea. It may also occur from iritis, particularly if an abscess of this part burst into the anterior chamber. Inflammation, however, of the membrane of this chamber, is common to all these affections, in a consecutive or associated form. When matter is effused be- hind as well as before the iris, it constitutes em- pi/esis ocidi, or suppuration of the eye. Various forms and divisions of hypopyon have been de- vised by Beer, IIichtei!, Benedict, and Jueng- KEN ; but they do not deserve notice, as they lead I not to any practical result, and as this is not a ■ peculiar disease, but the result of inflammatory action consecutively or primarily affecting the membrane of the chamber, and tissues surround- I ing it. Whether the matter in hypopyon be pus or an albuminous fluid, it seems to sink lo the bottom of the aqueous humour; but, in some j instances, it appears as if heaped up or in lumps ; ! and, in this case, a minute admixture of blood I sometimes is seen in it. I 117. C. Treatment. — a. hijlammntinn of the an- I terinr chamber is readily controlled by local bleed- [ ino-s, purgatices, and calomel with Jameses powder, given twice or thrice a day. Mr. Wardrop has strongly advised puncture of the cornea, to eua- | cuate the aqueous humour, in this and some other I afl^ections attended by inflammation of the mem- brane secreting this humour, after suitable treat- ment has been employed; and jMacgregor, iMuELLER, Langenbeck, and Benedict speak favourably of it, as a measure calculated lo pre- vent rupture of the cornea in purulent oph- thalmia. Mr. Lawrence, who takes a candid view of the matter, thus remarks; — "I have tried it in some instances, but with so little benefit that I have not been induced to persist in the practice ; and I have been the less inclined to do so- in severe inflammations, because the ordinary anti- phlogistic treatment enables us to control them." 118. b. UypopiioH, being an attendant, rather than a termination, of inflammation beginning in or extending to the anterior chamber, requires the antiphlogistic treatment recommended in the acute forms of ophthalmia. The only question is, whether or not the cornea should be punctured to evacuate the matter collected behind it. Puncture or incision has been advised for this purpose by Ware, Richteu, Benedict, Langen- beck, and Wakdrop. Beer at one time directed it, but afterwards reprobated it. Dr. Monteath and- Mr. Mackenzie recommend its perform- ance in every case in which the chambers are completely filled; as they consider absorption in such not to be depended upon, and dread the bursting and destruction of the eye. Scarpa and Lawrence, on the contrary, prefer active antiphlogistic treatment; as they consider that the operation aggravates the inflammation, and that when the inflammation is removed by judi- cious and energetic means, the eff'usion will be ra- pidly absorbed. In this opinion I entirely concur, ii. Inflammation of the Iris. Syn. — Iritis, Schmidt. 1 19. Char ACT. — Fine vessels running in radii to the edge of the cornea ; dark discolouration of the iris ; contraction, irregularity, and immobilitii of the pupil; effusion of coagulable lymph into the pupil and posterior chamber, occasionally also into the anterior, causing adhesions of the iris to the capsule of the lens, loith dimness of sight, sometimes almost amounting to blindness, pain in the eye, and nocturnal pain about the orbit. 120. This affection was not known until it was ably described by Schmidt of Vienna. It may be consecutive of the diseases already noticed • but it often occurs in a primary fm-m, and then generally assumes more or less of the characters of adhesive inflammation, the danger occasioned by it to the organ arising chiefly from this cir- cumstance ; for, if neglected or injudiciously treated, the pupil may become completely and irremediably obliterated by efl^usion of coagulable lymph. Some degree of inflammation of the sclerotica, and of the anterior hemisphere of the crystalline capsule, often extending to the cho- roid and retina, generally accompanies this dis- ease ; but the iris is the focus of morbid action, and the situation of the chief lesions. The pri- mary states of the complaint commence in the puijillary edge of the iris, spread to the rest of the iris, to the capsule of the lens, and, perhaps, to the choroid and retina. The attendant in- flammation of the sclerotica may be sympathetic, or otherwise related to it. — Iritis has been di- vided into the idiopathic, or that occurring pri- marily in persons of a healthy constitution"; and the sympathetic, or that afl'ecling those of an 3 K 4 872 EYE — Idiopathic Iritis — Symptoms and Course, arthritic diathesis, or supervening in the course of syphilitic cachexia. 121. Causes. — Primary Iritis occurs most frequently in persons of an unsound constitution — the gouty, rheumatic, and cachectic ; and hence it presents certain modifications hereafter to be noticed. It rarely occurs in young and healthy persons ; although it may supervene in them, upon the other varieties of ophthalmia. It is excited by the common causes of inflammation of this organ (§ 5.) ; especially by over exer- tion, and employment of sight on minute or bright objects ; by external injuries or operations on the eye ; and by exposure to cold, wet, and atmospheric vicissitudes. These last are the common exciting causes in persons imbued with the syphilitic cachexia, and in those of a rheu- matic and gouty diathesis. I do not believe that the use of mercury will cause the complaint, if it be given so as to affect the moutii. 122. A. Idiopathic Iritis. — a. Symptoms and Course. — Iritis presents various grades of severity, and periods of duration. It may hence be mild or severe ; acute, sub-acute, or chronic. I shall adopt Mr. Mackenzie's division of iritis into three grades. — a. In the frst degree, the vascularity of the sclerotica is barely perceptible, and exists only in one or more points, and chiefly behind the upper lid. The ring of the iris next the pupil is slightly discoloured; the pupil is not materially contracted, but is somewhat irre- gular, without its usual clean and sharp edge, and is hazy ; and the motions of the iris are limited and slow. Vision is confused and slightly obscured. There is little or no pain, or aver.-ion from light. This state of iritis may exist for many weeks, and yet be completely removed by suitable treatment. 123. S. The second degree, or that with evident external inflammation of the eye, is much more frequent than the foregoing. A zone of vascu- larity is observed in the sclerotica around the cornea, the vessels sinking through the sclerotica, and not advancing into the cornea. The iris, particularly its inner or smaller rings, is dis- coloured, either from injection of its vessels or the effusion of lymph ; and its anterior sur- face, instead of being smooth and shining, ap- pears dull, puckered, and swollen, especially near the pupillary opening, where it is retracted towards the lens. The pupil is contracted, irre- gular, motionless, and filled with coagulable lymph, which generally appears like half-boiled white of egg. Epiphora and intolerance of light are considerable, and vision becomes greatly impaired. The pain in the eye is constant, and attended by pain in the orbit and forehead, par- ticularly at night ; and by the usual symptoms of inflammatory fever. 124. y. The third degree of iritis presents the following characters: — The eye externally is much more inflamed than in the foregoing grades; the redness of the conjunctiva being sometimes so great as to ma'-k for a time the red zone of the sclerotica. Both the smaller and larger rings of the iris are discoloured; the an- terior surface being swollen, [)uckere(l, and bolstered forwards so as to ai>pn)ac'h the cornea, excepting its pupillary edge, which is retracted towards the lens. Reil vessels and spots of bldod are sonittimes seen on the iris, but more fre- quently in the lymph occupying the very con- tracted pupil. (Jne or more minute elevations, of a yellowish colour, which are in some cases specks of effused lymph, in others small ab- scesses, appear on the surface of the iris ; and pus discharged from these abscesses, with lymph, blood, and serum, sometimes occupy the anterior chamber. The cornea becomes hazy and turbid, and occasionally dotted with minute brownish spots. There are at first great intolerance of light and lachrymation ; and subsequently vision is completely, and generally permanently, lost. Flashes of light in the eye are frequently per- ceived by the patient, indicating the extension of inflammation to the choroid and retina. The pain in the organ is constant, great, and some- times excruciating ; with pain in the orbit and eyebrow, increased at night. When attended with extreme pain, especially in syphilitic cases, very serious changes, even abscess of the ante- rior chamber, disorganisation of the vitreous humour, &c. frequently supervene. In these, the inflammation is extended more or less to the internal and external tissues of the eye, and ge- neral ophthalmitis (§ 153.) is the result. 125. 5. The discolouration of the iris arises from vascular injection and effusion, and is of a yel- lowish or greenish tint, in light eyes ; or of a reddish hue, in dark eyes : but it is very fre- quently dull, muddy, and dark ; and the natural brilliancy and fibrous arrangement of this part are lost. The effused lymph is seen first at the pupillary edge, and afterwards on the lesser circle of the iris ; causing a villous, rough, ele- vated, or irregular surface or outline of the part. The lymph may be in distinct masses of very various sizes on the anterior of the iris, or at its pupillary margin ; and, in the most acute cases, it may fill the pupil or anterior chamber, or even the posterior chamber. The colour of the effused lymph is sometimes a light yellowish brown or ochrey ; but a rusty hue is most common. It is occasionally of a light dirty yellowish tint, par- ticularly when it is abundant, and fills the ante- rior chamber. In this case, or when a small abscess in the iris is discharged in this situation, a form of hypopyon is the result. The pupil is contracted, and becomes more and more so in the progress of the complaint. The effusion of lymph and adhesion render it also angular, irre- gular, and fixed at one or more points, and free in others. It loses its thin, sharp, and well- defined edge ; and becomes dull and cloudy, or otherwise discoloured. 126. £. The acute states of iritis are observed in persons of a full habit or robust constitution, after the action of powerful causes, especially if they continue to act, and the case have been neglected at the beginning ; and in cachectic conditions of the frame. They are attended by the usual characters of severe vascular action ; especially injection of the vessels, extreme con- traction of the pupil, effusion of lymph, dulness of the cornea, external redness, loss of sight, violent pain in the eye, and severe headach, with watchfulness, restlessness, and febrile disturb- ance, terminating, in a few days, in disorganis- ation of the interior tissues, and in irreparable loss of vision. — In cliroiiic cases, the origin of disease is almost imperceptible, and its progress slow. Little or no paiu is fell, and the external £YE — Idiopathic Iritis — Consequences — Treatment. 873 redness is very slight or unobserved. At last, lymph is effused, vision is impaired, and the complaint is brought under treatment. — The sub- acute cases are intermediate between these two extremes. The chronic form may also follow upon an inactive or partially successful treatment of the acute and sub-acute forms ; but it usually presents itself in the Jirst grade ; the acute most commonly assuming the third, and the sub-acute the second grades. 127. h. Consequences and Prognosis. — a. Change of texture and colour of the iris follow inflamma- tion which has been violent or of long duration. General adhesion of the iris to the cornea may occur, and lead to staphyloma ; or the iris may become adherent both to the cornea and to the capsule of the lens, occasioning anterior flattening of the eye. This is, however, very rare. Drop- sical enlargement of the anterior chamber, with closed pupil and staphyloma scleroticae, may like- wise supervene (Lawrence). — B. After acute or sub-acute attacks, the pupillary margin often becomes adherent to the capsule of tiie lens, either throughout, or in one or more points. When the inflammation has disappeared, the adhesion still continues, or is reduced to slender threads admit- ting of partial motion. In some cases, adhesions of the iris are detached, leaving black marks on the capsule, which are permanent. — y. An ad- ventitious membrane may form in the pupil, from organisation of the lymph effused on the surface of the capsule. Its opacity is greatest in the centre ; and it may be connected with partial adhesion of the iris. In rarer instances, the ad- ventitious substance is seen in one side of the pupil, and attached to the edge of the iris (Atresia Iridis incompleta).- — J. Closure of the pupil fol- lows effusion into the posterior chamber, and the formation of an opaque adventitious substance to which the circumference of the pupil is fixed (Atresia Iridis perfecta). Tliis adventitious mem- brane may extend over the anterior capsule, causing adhesion of the uvea to the lens, and en- largement of the anterior chamber. — b. Atrophy of the globe may supervene upon copious effusion into both chambers, and deposition of lymph be- hind the iris in such quantity as to cause bulging of the sclerotica, or to escape through this mem- brane and raise the conjunctiva. In this case, the fluid is absorbed after the subsidence of the inflammation ; but the internal parts of the ball are so altered that they waste and become flaccid, particularly after complete closure of the pupil. The vitreous humour may also be rendered fluid, and the eye soft, without shrinking in size ; but this occurs only after acute syphilitic iritis. — ^. Impaired vision may be the result of the extension of inflammation to the posterior tunics, although the disease has been arrested by appropriate treat- ment ; and may follow the acute, sub-acute, or chronic states of the disease. The impaired vi- sion may be caused solely by the lesions produced in these tunics, or by these and the changes in the pupil conjoined. 128. c. The Prognosis. — When the disease is recent, and appropriate treatment is adopted, effu- sion into the texture, or on the surface, of the iri-:, will be removed by absorption upon the sub- sidence of the inflammation. Hence we need not dread the result, if the changes be confined to llie iris, although the effusion be copious. But when the complaint has continued some time, and is attended by increasing contraction of the pupil and eft'usion off lymph, with organisation of the latter into adhesions and adventitious membranes ; or when the consequences described above (§ 127.) are present, or inflammation extends to the posterior parts of the globe and retina, or to tiie cornea with more or less opacity ; the greatest danger to vision is to be apprehended. In most cases, a guarded prognosis should be given ; for it is often difficult to determine how far the posterior tunics may be affected. Change of colour in the whole iris, with great contraction of the pupd, and an opaque substance in it ; in- tense external redness, severe and deep-seated pain, extinction of sight, and flashes of light in the eye ; large effusion behind the iris, and bulg- ing of the sclerotica ; and a protruded state of the iris, and adhesion of the pupil ; are all hopeless states of the organ. If unfavourable changes have not appeared, recovery may take place, although the complaint has been of three or four weeks' duration, and sight is much im- paired. 129. d. The Diagnosis of iritis cannot be diffi- cult, if the history of the case be considered, and the state of the iris carefully examined. The af- fection most resembling iritis is inflammation of the capsule of the lens. Nebulous, contracted, and fixed pupil, discoloured iris, adhesions be- tween the iris and capsule, are present in the latter, which, however, often supervenes in the course of iritis, and generally attends its most acute attacks; whilst, on the other hand, inflammation of the crystalline capsule is attended by some de- gree of iritis. The one is thus reciprocally conse- quent upon the other. — Retinitis resembles iritis chiefly in the great contraction of the pupil ; but the former is more sudden, its progress more ra- pid,its attendant headach more violent, and vision more rapidly impaired, than in the latter. 130. e. Treatment. — The indications of cure are — 1st, to subdue the inflammation; 2d, to prevent or anest the effusion of lymph ; 3d, to promote the absorption of what has been effused ; and 4th, to preserve the pupil entire. They are to be accomplished by bloodletting, mercurials, belladonna, &c. — Bloodletting, in acute and sub- acute cases ; in young, robust, or plethoric per- sons; when the pain is -levere, and febrile distur- bance considerable; and the inflammation extend- ing to the internal tunics ; must be most promptly and actively practised. It will often be necessary to repeat it ; and even to follow it by cuppirig on the nape of the neck, or behind the ears, or on the temples. In the circumstances now stated, local bleeding cannot be confided in alone. But, in chronic, sub-acute, or mild states, cupping will be preferable. Leeches may be em- ployed ; but they are, unless a great number be applied, much less efficient than cupping. Im- mediately after the first bleeding, a full dose of calomel and James's ponder, with opium, should be^given, and repeated at bedtime ; and an active cathartic draught (F. 216.) in the morning, aided by a terebinthinate enema (F. 150, 151.). The specific effects of inerciirit, which are most effec- tual in fulfilling the second and third indications, will be hastened by its combination with an anti- inonial ; and, if the bowels he acted upon daily by a draught containing equal parts of the spirits 874 EYE — Sympathetic of turpentine and castor oil, or a larger portion of the former, the specific operation of the calomel will not be prevented, or even delayed, but the beneficial eflects on the disease will be insured. 131. Belladonna is of great benefit in every stage of the complaint, and should be applied as directed above (§ 112.), contemporaneously with the exhibition of mercury. Altiiough the pupil be contracted, and effusion or even adhesion has taken place, the specific operation of the latter, and the effects of the former on the iris, will elono-ate or even entirely detach the adhesions, if they are soft or unorganised. In addition to these, diaphoretics, diuretics, and warm pediluvia are beneficial. The bowels ought to be kept freely open by the substances already noticed. Turpentine may be used for this purpose, or with the view of aiding the effects of calomel, or even as a substitute for it, as advised by JMr. Carmi- CHAEL, who prescribes it in drachm doses, three times a day, suspended in almond emulc-ion. Blisters are of doubtful efficacy ; Mr. Lawrence decides against them. 132. B. SyjiPATHETic Iritis. — a. Sypliilitic Iritis, or inflammation of the iris occurring in persons tainted by the syphilitic poison, is, per- haps, the most common variety of this disease. It is a symptom of syphilis in its constitutional sta^e ; and, although sometimes appearing alone, it is more frequently one of several secondary symptoms, especially ulcerations of the throat, eruptions, swellings of the periosteum, pains of the limbs, affection of the nose, &c. It occurs most frequently along with the earlier secondary affections, and sometimes appears before the primary disorder is cured (Lawrence). It rarely occurs as a symptom of syphilis in infants, although secondary sypliilis is not infrecjuent in them. It may be either acute or chronic ; it is often associated with inflammation of other internal tissues of the organ ; and it is most commonly determined or excited by exposure to cold, exer- tion of the eye, or external injury. 133. Diagnosis. — The characters and progress of syphilitic iritis are nearly the same as those of the idiopathic form ; yet there are certain points of difference, which are frequently observed in the local symptoms, deserving of notice. These are the tubercular disposition, and the reddisli brown discolouration of the lymph effused on the iris; the angular form of the pupil, and its dis- placement towards the root of the nose ; and the violent exacerbations of pain felt chiefly in the brow during the night, and in a sligliter degree or not at all in the day. 'i'he first and second of these are, however, not constant; the last is al- ways present. But the most certain diagnosis are, the concomitance of other syphilitic affections, and the iiistory of the case. — Lymph is effused from tiie margin of the pupil in arthritic iritis, but not deposited in a distinct form, and the adhesions are generally white ; and both in it, and in the idiopathic variety, the pupil com- monly retains ils circular figure and central po- sition. 134. h. Arthritic Jrilis. — Inflammation of the ills is frequent in the goutii diathesis, but less so in the rheumatic, unless as a consequence of rheumiitic indanmiation of tlie sclerotica {§ 97.). In the gouty, it occurs m()St comiiKuily in the iris from the commencement, although often some Iritis — Treatment. other tissues of the organ are affected at the same time ; but, in the rheumatic, it rarely begins in the iris. The gouty modification is generally (/c(((c',and very severe ; the rheumatic, sub-acute, or chronic, and more mWd. — The former gene- rally commences with pain of the eye, intolerance of light, lachrymation, and zonular redness of the sclerotica. Pains are felt in the orbit, brow, and forehead. The iris soon becomes dull and dis- coloured; the pupil contracted, and fixed at one or more points to the capsule of the lens. The reddish zone in the sclerotica is of a dull or nearly livid tint, and does not advance to the edge of the cornea, but leaves a narrow white ring between. After a violent attack, with im- paired vision, the symptoms subside, and sight is restored, the iris being attached to the capsule by whitish adhesions. This form of iritis often re- turns again and again, the eyes recovering almost completely after repeated attacks. Mr. Law- rence met with a case in which the disease returned fourteen times ; yet vision was not ma- terially impaired, though adhesions in each eye connected the pupillary edge of the iris to tlie capsule. But frequently a fresh effusion attends on each attack, until the pupil is more and more contracted, and at last filled with opaque ad- ventitious membrane ; the texture of the iris, notwiihstanding, generally remaining but little altered. 135. f. Scrofulous Iritis. — This variety is con- secutive of strumous ophthalmia (§ 68.), the in- flammation extending from the external tunics. It is commonly preceded and accompanied by changes in the cornea, preventing the lesions of the iris from being observed. Hence it often es- capes detection until it has completed its course. It very rarely occurs as a primary affection. Mr. Mackenzie adduces a case in which the attack seemed primary; but its history is not conclusive on this point. 136. Treatment. — a. The syphilitic variety re- quires local bleedings and mercurials, as advise I for the idiopathic disease, and in similar com- binations, until the symptoms and the constitu- tional malady, on which the local one is engrafted, are entirely removed. Turpentine may also bo emjiloyed as an auxiliary, and to open the bowels, either as directed by iVlr. Carmichaei,, or as pre- scribed by myself (§ 130. 131.). Opiate frictions around the eye, and belladonna, are also of great service. (General bloodletting is seldom well borne in this variety, unless in robust or plethoric persons ; but full or repeated cupping is often ne- cessary. 137. h. Arthritic Iritis. — The rheumatic modification requires the treatment recommended in rheumatic inflammation of the external tunics — especially Ci/;)pni^-, leeching, blistering, alter- atives, with colchicum ; and, subsecjuently, cin- chona or quinine, with full doses of colchicum, aided by counter-irritation. Turpentine is also beneficial in this variety ; but it should be given so as to act moderately on the bowels, Mr. Waleace advises hark to be given from the com- mencement, when this disease follows low fevers. — The gouty modification will be removed by a very similar treatment to that now stated. Mer- curials given with any other intention than ihiit of removing morbid secretions and (excretions, arc more injurious than btatficial. Colchicum, EYE- — iNrtAMMATioN OF THE Interxal Tumcs. 875 in full closes, with the alkaline subcarbonates and warm purgatives, is especially indicated. Blisters, and derivatives to the lower extre- mities ; tepid foinentalio}is to the organ ; fric- tions with opium and belladonna to the forehead ; a free state of the bowels, and attention to diet; are particularly requisite. As the attacks are often repealed, measures of prereittiun should be adopted. The chief of these are, low living, a free state of the bowels and of all the excre- tions, tiie removal of pletiiora, and preserving the organ from cold or over-exertion, — Notliing can be added to what has been slated, both here and in preceding sections {§ 130, 131.), as to the treatment of the scrofulous mrietif of iritis, iii. Inflammation of hie Internal Tunics. Syn. — Internal Ophthalmia ; Ophthalmitis interna idioputhica, Beer ; Ophthalmitis pos- terior totalis, Rosas. 138. Defin. — Severe, deep-seated pain of the eife, with impaired vision, contracted pupil, a sense of aching, tension, and heat, without much external redness, but with sy7nptomatic injiamma- tory fever. 139. A. Inflammation may commence in the retina, OT in the choroid; but it cannot remain long confined to either. It frequently extends from the iris to the latter, and to other internal parts. The disease probably begins most fre- quently in the retina, and may, therefore, be designated retinitis in its early stage. We are necessarily less acquainted with the phenomena attending it, than with those accompanying iritis. Rosas considers that tlie whole retina is not equally affected, but chiefly the vicinity of the yellow spot. — The Causes cf retinitis are sudden exposure to light ; the action of a strong light, as looking at the sun or bright objects ; the light and heat of a bright fire ; exertion of the eyes, particularly when the rays of light are refracted; and the predisposing and exciting causes described above (§ 4 — 6.). 140. a. Si/mptoms and Course of retinitis, — T!ie patient complains of j^ain and aching deep in the eye ; of a sense of tension or of heat, aggra- vated by using the organ, by exposure to light, or by whatever determines the circulation to the head. The pain is often pulsating, and usually extends to the brow and head, Tiie pupil is much con- tracted ; vision is impaired, and hourly becomes more so. In severe cases, the pupil is nearly closed, and sight almost or altogether lost ; and flashes or sparks of light are perceived in the eye. At this period there is little external redness, ex- cepting in the sclerotica around the cornea ; but there are thirst, white tongue, and fever. With the continuance of the disease, the sclerotic red- ness increases, and a bright zone is formed around the cornea ; and the inflammation spreads inwards to the vitreous humour and to the cap- sule of the lens, and outwards to the choroid and iris. This last now loses its natural colour, be- coming greenish and reddish ; and it is pushed towards the cornea. Sight is lost, even before total closure of the pupil takes place. The dis- ease now may be designated Injiammation of the internal tunics generally, or the second stage of retinitis. The redness of the sclerotic extends; the conjunctiva becomes injecfeil ; the pupil often obliterated from effusion of lymph ; the cornea somewhat dull j and general ophthalmia supervenes. The pain of the eye is unequal, or pulsative ; is attended by a sense of weight, some- times of cold ; and chills or rigors are felt. Sup- puration now occurs, and matter is eft'used in front of the iris, particularly if the pupil is not entirely closed, constituting hypopyon ; and blood is sometimes mixed with it. — Such is the course of the most acute and severe cases of internal ophthalmia commencing in the retina, when un- controlled by treatment; and the results are — 1st, Insensibility of the retina, from change of structure — Amaurosis ; — 2d, Contraction and partial obstruction of the pupil, with impaiied function of the retina, and opaque capsule and lens ; — 3d, Closed pupil, with the formation of an adventitious membrane; — 4th, Suppuration making its way externally, and leading to de- struction of the eye, and collapse of the coats. 141.6. Chronic Retinitis. — Avery much milder and more prolonged form of retinitis than the foregoing, is often observed in persons who greatly exert their eyes. It is characteri;ed by sensibility to light ; more or less weakness or obscurity of vision, especially beyond the distance at which the eye has usually been occupied ; with gradual contraction of the pupil, immobility of the iris, and aching in the eyes and forehead. This slight grade of the disease is manifestly confined to the retina. There is but little increase of vascularity externally ; excepting, in some cases, a narrow or partial zone in the sclerotica around the cornea. The complaint is aggravated by stimulants and a heating regimen ; and benefited by opposite means. It often continues months, or even years, with occasional exacerbations ; and either in great measure disappears ; or becomes greatly aggra- vated, or assumes the above severe form. 142. c. The Prognosis in retinitis is favourable in the comnaencement, before the pupil is very much contracted, or vision greatly impaired ; but it becomes less and less so in proportion to the duration of the complaint. If misunderstood at the commencement, neglected, or ill-treated, the organ is frequently endangered. If the pupil be much contracted, and sight lost ; or if sight be quite gone before the closure of the pupil ; blind- ness will be the result. — If the disease have gone on to general ophthalmitis, all that can be hoped is to preserve the form of the eye. 143. d. Treatment. — Copious general and local bleeding, the active exhibition of viercuriuls until the mouth is affected, the employment of belladonna, cathartics, low diet, and the rest of the antiphlogistic regimen, as directed for iritis, with complete rest of the eyes and of the body, and exclusion of light, are the most efHcacicus means of cure. Bloodletting, although early practised, will often fail, if mercury be not freely administered. Turpentine may be also given to aid its operation, and act upon the bowels. These measures will succeed only in the first stage, before the pupil is closed and sight is lost. Yet, if suppuration have not occurred, it is still requisite, inxc. ; should be fully tried. 150. D. Injlammation of the internal tissues after fever sometimes occurs. It has been de- scribed by Dr. Wallace and Dr. jACOn. Of flirty cases which the former observed, there were only four who had the disease In the left eye, and only two who had It in both. It may occur very soon, or not for some months, after fever ; and it presents (aos(«ges ; in the _/!'rs( of which, amau- EYE — Phleomonoid Inflammation of the Ball. rotic symptoms are alone present : in the second those of inflammation are superadded. The pe- riod at which ihe former commences after fever, and its duration before redness comes on, are very uncertain. In some cases, dimness of sight and musccE volitantes have been present from the earhest period of convalescence, yet the inflam- matory stage has not supervened for weeks or months ; and in other instances, the amaurotic symptoms have not appeared till months after the lever, and have been soon followed liy the second stage. The inflammatory changes disappear be- fore the amaurotic symptoms ( Wallace). 151. Dr. Jacob met with seventy or eighty cases of the disease in one year. It is most fre- quent among the poor, in young persons and in females ; and attacks always only one eye. The affection of the retina having been present from a few days to several weeks, the transparent parts of the eye become more or less clouded or opaque; the circumference of the cornea pre- sents an opaque whitish appearance or circle, resembling the arcus sendis. The anterior cham- ber seems clouded. The iris is always dull, and altered in colour; but tubercles of lymph or ab- scesses are not seen in it ; and it often moves actively. The pupil is slightly irregular ; yet it does not contract adhesions, or become closed. Hypopyon sometimes ensues. In the worst cases, the lens becomes partially opaque, and presents an opaline amber colour. When vision is per- manently lost, it is generally owing to this change. Impairment or loss of vision is the earliest symptom ; and there generally are into- lerance of light, lachrymation, and a stinging or dartmg pain through the eye to the temple or nose. Sometimes the sufiering is slight ; but it is usually increased on exposure to strong light (Jacob). 152. The Treatment recommended by these two experienced writers is diametrically opposite. Dr. Wallace found depletion and mercury insufficient for a cu]e ; he therefore gave half a drachm, or a drachm, of bark in powder, three or four times a day ; or the sulphate of quinine in two grain doses. Dr. Reid also employed bark with success in this sequela of fever. Dr. Jacob, however, states, that bleed- ing locally or generally, purgatives and anti- monials, blisters and opiate stupes, and mer- curials with opium and belladonna, are the most efficacious means of cure. He adds, that the re- lief from mercury is so certain, that he has trusted to it almost exclusively, with the assistance of belladonna. He has generally found two grains of calomel, with a quarter of a grain of opium, or five grains of blue pill alone, three times a day, answer every purpose ; tenderness of the gums coming on in eight or ten days. If the pain be severe, he combines hyoscyamus or belladonna with the dose taken at bedtime. He tried the sulphate of quinine in four cases for eight days ; but finding no relief, he gave mercury, which effected a cure. The cases occurring after typhus fever, recorded by Mr. Hewson, and which were similar to those described by Drs. Wallace, Heid, and Jacob, readily yielded to mercurial treatment. 1\ . Inflammation of the whole Eye. Syn. — Ophthalmitis Idiopathica, Beer ; Ophthal- mitis Universalis, Weller ; Injiammation of the Globe, Lawrence; Phlegmonnid Inflam mation of the whole Ball. 163. Charact. — Severe deep-seated pain; in- creased inte'^Hal redness and tumefaction ; a sense of tension, and a feeling of the argmi being too large for the orbit, and about to burst from it ; early loss of sight, with discolared iris, and con- tracted, immoveable pupil ; swelling and immobility of the globe, with partial protrusion of it and the eijelids; and severe injiammatorii fever. 154. A. This severe disease has been well described by JMr. Lawrence. It consists of inflammation of the internal and external tissues, and is not of common occurrence. It is met with chiefly in very robust constitutions, and persons of a phlogistic diathesis and full habit of body. It is most frequent in the right eye, as is the case with ophthalmic inflammation generally. Mr. Lawrence states, that of 134 cases of oph- thalmia commencing in one eye, 95 began in the right. General ophthalmitis is most com- monly caused by severe injuries of the organ; by the explosion of gunpowder before the eye ; by great heat and light striking upon it ; and fragments of stone, iron, &c. propelled against it. 155. (/. Symptoms and Course. — At the com- mencement, the characteristic injection of both the sclerotica and conjunctiva is evident; with a severe burning or throbbing pain, and a sense of bursting distension. The surface of the organ is stiff and dry ; but copious lachrymation soon comes on, and is increased by exposure to light. The external redness increases ; and the con- junctiva swells into a broad firm ring of chemosis around the cornea, which it partially overlaps. There are intolerance of light, dimne-s of vision, contracted pupil, impaired brilliancy of the iris, and acute sympathetic fever. This constitutes the _^rst stage of the disease. — The motions of the globe and lids now become difficult and painful; and the pain more and more violent, extending to the brow, cheek, temple, and head. The previously blue or grey iris assumes a dull greenish hue; and the brown or black, a reddish tint. The eyeball swells and loses its power of motion; the cornea grows muddy, and, by de-' grees, opaque ; but vision is generaHy lost before these changes supervene. The patient perceives luminous flashes or sparks in his eye, owing to disordered action in the retina ; and the vascular distension of the internal tissues generally occa- sions a sense of bursting. The deep-seated swelling and external chemosis partially evert the inffamed eyelids, which thus resemble, espe- cially the inferior, a red fleshy mass ; and both the ball and lids are protruded, and immoveable. The second stage is now fully developed. — Sym- pathetic inflammatory fever always accompanies this severe disease. The local symptoms are preceded, or attended at their commencement by chills or rigors, followed by headach, white tongue, thirst, hot and dry skin ; and accelerated, hafd, and full pulse. These are increased at night, and accompanied with watchfulness, and throbbing in the temple and eye. 156. b. The Consequences, or the second sta. — D. Bi/sch, De Usu Itemed. Topicorum in Ocul. Morl)is. Hate, 178!'. — IV. RiitDtey, Treatise on One Hundred and Eighteen principal Diseases of the Eyes. Loud. 17yO. — G. J. Beer, Ophth.ilmologia Pathologica, sect. i. Phlogosis Oculi. Lips. 18U0. — J. P. Frank, De Curaiid. Honiin. Morbis, lib. ii. p. 76 Hynatii, iji Mem. of Med. Soc. of Lon- don, vol. V. p. .';25. {Deloils his 'i:v)c ease nfehnDiie o)ihlh., which wnscvred by the fumes and oil of Unpnttine applied to the eye.) — N. E. JMuure, Tre.iti.se on t)phthahny anil those Diseases which are iiitroiiuced by it, 8vo. Lond. 18C0 O. J. Beer, Ribliotheca Ophtlialmica, in qua Soripta ad Morl)os Ocul. fac. a Herum Initiis usque ad finem Anni 1797, breviter recens, &c. 4tom.4to. Wien. 17!)3— 1798. — Fischer, Ophth. Pathologica, sou de C:og- no.sren(iis et Curandis Organi Seii.sorii Aff'ectionibus, sect. i. 8vo. Leips. 18(;fl IVninwritihl, On the Use of IJellador.na in Ophth., in Med. ami Plus. .Inurn. vol. iv. p. 5. — ./. Eiiinuiidstan, A Tieatisv' on the A'arieties, ;ind Con.scquonccs, and Treatment of Oplithabiiia, 8v(). Eiiin. I,S()(i. — C. llimli/, Ophthalmolof^ IJeobachtnnpr. \c. 8vo. I'rank. u. M. IHO).; et ICiiileitung in die Augenheil- kniide, Hvo. .lena, IWiii. — ///;;//;/ u. Sehiniill, Opiith. liilili.itl.ok, .3 1). Hio. .lena, 18(l.'i— 1807. — .A Spindler, IJel). Entziindungen (I. Auges,\r. 8vo. Wiirzb. 1807. — J. If'ardrop, in Eiliu. Med. and Surg. Journ. vol.iii. p. 56., FAINTING - Pathology. 879 and Jan. 1827.; and Essay on the Morbid Anatomy of the Human Eye, 2 vols. Edin. 1808. ; and Trans, of Moil.- Ciiirurg. Soc. vol. iv. p. 142., and Ibid. vol. x. p. 1. — J. Ware, Chirurgical Observations relative to the l-.yo, 2d ed. 2 vols. Lond. 1805. ; and on Diseases of the Eye, 8vo. Lond. 18H. — G. J. Beer, Lehre v. d. Augenkrankheiten, &c. Wien. 8vo. 181c3. — T. W. G. liciu'dict, Beitrage f Pract. Heilkundo u. Ophthalmia- trik, Hvo. Leips. 1812. ; and De Morbis Oculi Hum. Intlammatorii, 4to. Lips. I81L — J. C. Saunders, Trea- tise on some Tractical Points relative to Dise^ises of the Eye, edit, by Farre. Lond. 8vo. 1812. 2d ed. 1816. — IVhateiey, Remarks on the Treatment of Inflammation of the Eye, Svo. Lond. 1818. — A. Scarpa, Tratlato della Principali Malaltie degliOcchi, 5th ed. 2 vols. Svo. Pavia, 1816, translated into French by Leveilli, and into Eng- lish by Brings J. K. Bose, de Choroideae Morbis, Svo. l!er. 18Ui. — C. F. i\ Graefe, Kepertorium Augenarztlicher Hcilformeln,8vo. Ber. 1827. — Quadri, Annot. Prat, sulle MalattiedegliOcchi,&c.4to. Napoli, I'AIS,. — F.De7nours, Traite sur les Maladies des Yeux, &c. 4 vols. Svo. Paris, 1818 C;. ]Viihotlt, Syntagma de^ Ophth.Veterum, Svo. 1818. — C. //. nv//fr, Die Krankh. d. Menschl. Auges, &c. Svo. Berl. 1819. trans, by il/on/e(?rt. Glasg. 1821. — Guillie, Biblioth. Ophthalm., ou Recueil d'Observat. sur les M.iladies des Yeux, &c. Svo. Paris, IS'.'O. — J. Velcli, A Practical Treatise on the Diseases of the Eye. Lond. 1820 B. Trovers, Synopsis of the Diseases of the Eye, and their Treatment. Lond. 1820. — J. Frank, Praxeos Medica; Universie Prapcepta, Partis Secunda?, vol. i. p. 677. Lips. 1821. _ T. G. IV. Benedict, Handbuch d. Prakt. Augenheilkunde, 5 bande, Svo. Leii)s. 1822 — 182.5. — G. Frick, A Treatise on tlie Diseases of the Eye, &c. Svo. Baltimore, 1823 O'Ha/loran, Practical Remarks on Acute and Chronic Ophthalmia, &c. Svo. Lond. 1S24. — J. IVardrop, Trans, of the Med. and Chirurg. Soo. of Edin. vol. ii. p. 1. 182G. — A. Watson, in Ibid, vol. ii. p. 76 — G. J. Guthrie, Lectures on the Operative Surgery of the Eye, &c. Plates, Svo. 2d ed. 1827. — C/iristian, in Gla.-gow Med. Journ. vol. i. — Stratford, Manual of the Phys. and Diseases of the Eye, Svo. Lond. 1828. — Jacob, Trans, of Fellows and Licentiates of Queen's (oil. of Dub. &c. vol. V. Dub. 1828. ; and Cyclop, of I'nict. Med. vol.iii. p. 199.— J. CJueng^ken, Die Lchre V. d. Augenoperationen, &c. Svo. Berl. 1828. ; ant! Ueber d. Augenkrankheit welchein d. Belgischen Armee herrscht, &c. 4to. Ber. 1824.— j5. Eble, Ueb. d. Bau und die Krankh. der Bindehaut des Auges, Svo. Wien. 1828 — W. Mackenzie, A Practical Treatise on the Dis- eases of the Eye, Svo. Lond. 1S30.—R. Froriep, De Cor- neitide Scrofulosa, 4to. Jen;p, 1830 A. Rosas, Handb. d. Theoret. u. Prak. Augenheilkunde, Svo. Viien. 1829. — jr. Lawre7tce, A Treatise on the Diseases of the Eye. Loml. 1S.:54, Svo — /•'. A. v. Amman, Zeitschrift, f. d. Oph- tlialmologie, &c. Svo. Heidelb. b. v. &c — B. Middlemore, A Treatise on the Disease of the Eye and its Appendages, 2 vols. Svo. London, 1S3.5. ii. OrnrH.\LMi A OF New-born Children S. T. Quel- jttulx, De C3. Jenje. 1791. —J. G. Gotx, De Ophth. Infantum recens Nat 4to. Jena?, 1791 Gibson, in Edin. Med. and .Surg. Journ. 18U7, p. 159 Hegewiscli, in Horn's. Archiv. b. id. p. '.08 W. F. Brei/ssig, De Ophth. Neonatorum, 4eo. Erf. 1793.-^.^1. Schmidt, Ophth. Bihliothek, b. iii. st. 2. p. IQi. — J. H. Juengken, Nunquam Lux clara Ophth. Neonat. Causa est occdsion- alis, svo. terol. 1817. —J. C. Reck. De Conjunctlone Oculi cum ProHuviis LUeri Materni, &c. 4to. Jen^, 1820 — J. C. .Vf/.'sr/i', De Blephari)phthalmia recens Na- torum. Berol. 1822. — G. Tiieveneij, De Infantum Ble- pharo-blennorrhoea. Ber. 1^22 Sm.'tlt, in Edin. Med. and Surg. Journ. No. GS. p. 351.— Melin, in Lond. Med. and Phys. Journ vol. liii. p. 184. — W. Mac/ienzi'e, in Ibid. vol. Ivi. p. 327. ; and Glasgow Med. J(Arn. vol. ii. p ■H9.—Rj/al/, Trans, of Irish Coll. of Phys. vol. iv. p. 342. ; et Ibid. vol. v. p. 1 — Amnion, Revue Med. t. iii. 1825, p. 124 — T. A. Amtnon, Monog. f. d. Augenleider •entziindung Neugeborner Kinder. Svo. Leips. 1S25 Mecktinghaus, De Blephanorrhcea Neonatorum, Svo. Ber. 1826. . — Storch, De Neonatorum Blennorrhoca, Svo. Ber. 1826. —J. Henschel, De Ophth. Neonatorum, Svo. Ber. 1827. — Sc/iorn, De Ophth. recens Natorum, Svo. Ber. 1828. — V. Ammon, in Encyclopad. W.jrterbuch der Mediciinschen Wissenschalten, b. iv. p. S9. A. A. Secmunn, De Contagio Ophth. Neonatorum, Svo. Ber. ■1827. iii. Purulent Ophthalmia of Adults A. Edmond stun. Account of the Ophth. which appeared in the Ar- gyleshire Fencibles, with Observations on the Egyptian Ophth. &c. Edin. 1803. — 1'. Macgregor, Trans, of Soe. for improving Med. and Chirurg. Knowledge, vol. iii. p. 2(1. et acq. — Savaresi, in Journ. Gen. de Med. t. xvi. p. 2l'S. — Henncn, in Med. and Phys. Journ. Sept. 1,S04 P. .iss.diiii, Observat. sur la Paste, le Flux Dys., et I'Oph- thalmie d'Egypte, &c. Paris, 1805, 2a ed. Svo. — G. Power, On Egyptian Ophth. Kc. Lond. 1803. Ues- genettes, Hitt. Medicale de I'Arm^e de I'Orient, Svo. I'aiis, \W2.—Reid, On tlieOphthal. that appeared in the S9th Reg. &c. Svo. Portsea, 1806. — ■/. Vetch, On the Ophthal. as it has appeared in England since the Return of the Army from Egypt, Svo. Lond. 1807. — U\ Thomas, Observ. on the Egyptian Ophth., and Ophth. Purulenta. Lond. 1809 — Peach, in Edin. Med. and Surg. Journ. vol. iii. p. 52. 39.5. — C. F. Forbes, in Ibid. vol. iii. p. 430. — Farre/, Observ. on the Ophth. and its Consequences. Lond. 1811. — I.arrey, Mem. de Chirurg. Milit. vol. iii, Svo. Paris, 1812 — I'asani, S>tox\a di-U' Ottalmia Con- tagiosa d'Egitto e sulla sua Propagazione in Italia, Svo. Verona, 1816. — H. Omodei, Cenni suU' Ottalmia Con- tagiosa d" Egitto e sulla sua Propagazione in Italia, Svo. Mil. 1816 Kraiiz, in Rust's Magazin, b. ii. 1S17. J. letch. Observations on the Tre.itment, by Sir W. Adams, of the Ophthalmic Cases of the Armv, 8vo. Lond. 1818. — J. Panada, Mem. Path. Prat, sulle' Ottal- mie non sole Epidemiche, ma ancora Contagiose. Pad. 1819. — Ktayskens, Sur I'Ophth. Coiitag. qui regno dans qutlques Bat. de I'Armee de Pays-Bas. trand, 1819.— J. A'. Rust, Die ^Egyptische Augcncntziindung unter d. K. Preu^s. Besatzung in Mainz. Svo. Berl. 1820 J. B. Mueller, Erfahrung. iib. d. Contagio'se jEgyptische Augenentziindung, &c. Svo. Mainz, 1821.— C. /•'. Grafe, in Gr. u. Walther,Jouxy\. ti. iii. st. 1. p. W5 —Walt her, in Ibid. b. ii. St. i. p. 99 — Rust, in his Mag.zin b.xiv. h.3. p. 548 i^osa.?, Breve Saggio suU' Otialmia, che neoli Anni 1822, 18i3, &c. Svo. Venez. 1824. — C. F. Graefe, Die Epidemische Contagiose Augenblennorrhb'e iEgypI tens, in den Europaischen Befreiungsheeren, &c. fol Ber. 1823. iv. GONORnHCE.\L AND SYPHILITIC OPHTHALMIA Astruc, De Morbis Venereis, t. i. p. 2^5. — Muraf, in Jlem. de la Soc. Med. d. Emulation, Ann. v. p. 449. Hufiland, Journ. d. Pract. Heilk. b. xiv. p. 191. — Flajani, Collezione d'Osservazioni, t. iv. ob. 7. — Spangcnberg Von Indicat. b. d. Ophth. Gonorrhoica, in Hmn, Archiv', b. xii. St. 2. 270. — Flemming, in Hufetand u. Bimly, Journ. d. Pr. Heilkunde, May, 1812, p.47 Foot, Treatise on Lues Venerea. Lond. 1820, p. 98. — F,. M. Boehmer, De Ophth. Syphilitica. Ber. \%'i\ —Wetzler , Syphilitisch- gonorrhoische Augenentziindung, &c., in Ha'rless, Neue Jahrb. h. xii. st. 1. p. 107. 1826. — Delpcch, Cliirurgie Clinique, t. i. p. 318. -.Bnco?, Treatise on Syphilis, &c. p. 132 — W. Lawrence, On the Venereal Diseases of the Eye, Svo. tond. '[iiSG^ — Lusardi, in Archives Gener. de Med. t. xvii. p.59'J. — J. M. A. Schon, Nosol. Therap. Darstell. d. Gonorrhdischen Augencntziindun!;, Svo. Hamb. 1834. — See also most of the latest Systematic Works, in Uie first sect, of BiBLiocnAPiiY. V. Iriiis, &C.—J. A. Schmidt, Ueber Nachstaar u. Iritis. VVien. 1801.; and Quarterly Journ. of Foreign Med. vol. i.— Rose, in Trans, of Med. and Chirurg. Soe. vol. viii. p. 361 Wallace, in Ibid. vol. xiv. p. 286 F. E. Niesar, De Rheumatismi in Ocul. Hum. Afl'ectu Svo. Bresl. 181.5. — H. B. Scliindler, Comment. Ophth de Iritide Chronica, &c. Vrat. 1819. — J. Ihomr.on, in Edin. Med. and Surg. Journ. vol. xiv. p. 91. — Farre, in Sounder's Treatise, &.C. 2d ed. p. 66 J. N. Kenski/, De Iritide in Genere et ejusque Speciebus, Svo. Pest.' 1820. — Herzberg, De Iritide. Ber. \-<2\.— T. Heirson, His- tory and treatment of the Ophth. accompanviiig the Se- condary Forms of Lues Venerea, Svo. Dub.'l824 J. A. Robertson, in E.iin.Med. and Surg. Jnurn. Jan. 1825. Travers, in'hisand Cooper's Surgical Essays, parti, p. 93. — H. Carmichael, On the Efficacy of Turpentine inDeci)- scated Inflam. of the Eye, &c. Svo. Dub. 1829. — G. J. Guthrie, in Med. Gazette, vol. iv. \>. 5m. —Jacob, in Trans, of Irish Coll. of Phys. vol. v. p. 468. ~ See also must of the latest Systematic Works in ihe first section of the Bibliography. FAINTING. Syn. — AefTro^-yp^ia, Hippocrates. A'!To-\,vx^ia, Galen. Syncope (from a-vyx.o7rr(a, concido); Deliqu'mm Animi ; DeJ'ectiu Aiii- mcE, Celsus. DefailUince, Fr. Die Ohinncicltl, Germ. Swonning. Classif.— 2. Class, 2. Order (Cullen). 4. Class, 4. Order (M. Good). I. Cla.s, III. Order (Autlior). 1. Defix. — Teininrarii depresfion of the ani- mal ind vital actions, icilhpallor, cold perspiration, remarkably weak pulse, or absence nf' pulse at the iirist ; respiration and sensation also being nearly abolished for a short time. 2. The terms usetl by Hippoctiates and Ga- TEN are .synonynious with Syncope, a word of nioilcrn u^e. I.eipolhymia lias been considereJ by later wi iters, paiticuliirly Morgagni, Dr. Good, 880 and Dr. Ash, either as the same as syncope, or as signifying a lesser grade of this affection. Tlie definition wliich Sauvages has given, of leipo- thymia, assigns it a specific difference from syn- cope, or the usual form of swooning or fainting. He states it to be — " Subitanea et brevis virium dejectio, superstite pulsus vigore, et cognoscendi facultate." I have had several opportunities of observing attentively the whole progress of this affection ; and I admit the accuracy of this defi- nition, witii the exception of the continuance of consciousness, which is generally somewhat im- paired, although not altogether lost. The pulse is unaltered from the state in which it was before or after the seizure, or not materially influenced ; and in some cases 1 have found it so strong as to pre- scribe depletion ; but the respiratory actions are nearly abolished. Leipothymia is, therefore, an affection of the animal and respiratory functions, that of the heart not being impaired. The slight or imperfect seizures often observed to precede fully developed epilepsy, or to occur between, or usher in, the severe attacks, and described in that article (§ 41. 52.), are examples of the leipo- thymia of Sauvages. 3. Fainting and Swooning are grades of the same affection, the latterbeing a more complete and prolonged state of the former. Fainting may occur after very short or irregular periods — the Syn- cope recurrens of Good. It is then often followed by palpitations of the heart. — Swooning is much less prone to recur, but is sometimes followed by severe reaction. Sauvages has divided syncope into as many varieties as there are principal causes inducing it. — Dr. Good has adopted a somewhat similar division. As, however, it varies chiefly in degree, from whatever cause it proceeds, no fur- ther distinction, than that which I have just made, need be assigned to it. 4. I. Description, &c. — Fainting is com- monly preceded by languor, a sense of sinking at the epigHstrium, anxiety, confusion of intellects, obscuration of vision, cold partial sweats, giddiness and ringing in the ears, pallid countenance and quivering of the lips, and coldness of the ex- tremities. These may continue for some time, constituting what is usually called faintness, and disappear; or they pass into full fainting or swooning more or less rapidly. It is seldom that fainting occurs without these precursors ; but when it is fully developed, respiration almost ceases, and consciousness is nearly or altogether lost. The action of the heart, however, still continues, but feebly ; and, although the pulse disappears from the wrist, as in full swooning, it may still be felt in the carotids ; or the heart will be heard to beat on auscultation. In some instances, relaxation of the sphincters, and dis- charge of the excretions, are said to have oc- curred. I3ut this is rare in swooning, although it sometimes supervenes in leipothymia, in which the brain is rather oppressed with blood, tiutn de- prived of it; and in which the pulse retains its vigour. Sickness, or even vomiting, sometimes follows faintness, or accompanies recovery from fainting. 5. The sensations ushering in syncope arc ge- nerally more or less distressing to the patient, and are sonietiiries described as accompanied by ■I feeling of death. Montaigne (Kssais, liv. ii. cap. vi.) found them rather pleasurable than FAINTING — Deschiption — Causes. otherwise ; and therefore infers, that those attend* ing upon dissolution must be similar. Cham- BEBET experienced the like feelings. The duration of the seizure varies from a few seconds to one or two hours; but commonly from half a minute to ten or fifteen. It has extended in some instances to several hours. Much longer periods have been mentioned by writers ; but their actual occurrence is questionable. 6. The Consequences or Terminations of syncope are — 1st, A return of the functions, respiration becoming more sensible and often suspirious, and eructations or vomiting occasionally supervening; — 2d, Palpitations of the heait, or general vas- cular reaction ; — 3d, Hysterical symptoms, or a fully formed hysterical paroxysm ; — '^th. Con- vulsions, general or partial, with or without con- sciousness ; but they are much more frequently consequent upon leipothymia than upon true syn- cope ; — 5th, Partial, or slight paralysis, or pro- longed vertigo ; — 6th, In cases connected with passive enlargement of the cavities, of the heart, and attended by a very slow as well as a very weak pulse, coagulation of the fibrinous portion of the blood has taken place in these cavities, and after some time occasioned death ; — 7th, Disso- lution has occurred in extreme cases, owing either to the complete depression of cerebral and nerv- ous power, and the consequent inaction of the heart ; or to the asthenia and wasting of the parietes of this organ, in conjunction with nervous depression. The fifth and sixth of these are rare ; instances, however, of the latter, are adduced in the article Heart. The termination in dis- solution is not so rare ; and is chiefly observed in cases of great debility or exhaustion from ex- treme or protracted pain, or from parturition; and particularly when a sitting or erect posture has been suddenly assumed or too long retained in adynamic fevers, and after exhausting dis- charges or depletions. Some years since I saw swooning caused by strangulated femoral hernia, that passed into complete tetanus of many hours' duration. 7. II. Causes. — The causes of syncope are strictly occasional. I shall consider them with reference to their operation. — a. The causes which act more immediately 07i the nervous system, are chiefly various impressions made upon the organs of sense, and depressing moral emotions. The odour of various flowers, according to the idiosyncrasy, sometimes occasions it. FABDinus HiLDANus has seen it produced by the smell of vinegar; and M.arcellus Donatus, by soft music. The airs of their native land have induced it in persons subject to nostalgia. A'arious un- pleasant sights, or objects of aversion, have caused it — as the sight of blood, of surgical operations, or of a corpse; also sudden terror, fear, anxiety, disappointment. The impression made by me- phitic or infectious emanations upon the nerves of smell, frequently induce more or less of faintness. Concussions and injuries of the brain ; blows upon the epigastrium ; shocks of the whole frame ; gyration; rotatory motions, and swinging; exces- sive or prolonged pain ; pleasurable sensations carried to excess, particularly the sexual orgasm ; the exhaustion consequent upon inordinate ex- citement, long fasting, and the ai)Strartion of accustomed stimuli; likewise operate principally in this way. FAINTING — Causes. n 8. b. The causes which affect chiefli/ the vascu- lar si/siem, are the advanced stages of diseases of the heart and pericardium, particularly passive dilatation of the cavities, or softening of their parietes. In cases of this kind, a fatal termin- ation often supervenes in the form of syncope, as remarked by Bomet, Lancisi, Senac, JNIohgagni, Meckel, and others. The most common of tiiis class of causes is the loss of blood, particu- larly from arteries whilst in a standing or sitting posture. HoFFMAXN met with an instance of syncope from bloodletting proving fatal, and nu- merous similar cases are on record. During the period preceding the stage of excitement in fevers, syncope may follow the loss of an ounce or two of blood ; and yet the same patient may bear, a few hours afterwards, when reaction has become developed, the loss of two or three pounds without this efTect being produced. Excessive discharges and evacuations occasion it, by dimi- nishing the circulating current, by deriving from the brain, and by exhausting nervous and vital power. Various circumstances retarding or pre- venting the return of blood to the right side of the heart, will sometimes cause fainting. The sudden removal of prolonged pressure, as of dropsical effusions and of the contents of the uterus in parturition, often occasions it ; but whe- ther the removal of pressure acts in this latter manner or not, or in favouring a sudden and over- propagated to the brain and heart, or may coeta- neously affect them ; as when syncope follows gangrene, or the passage of noxious matters into the circulation, or the ingestion of sedative or noxious matters, or supervenes upon affections of the stomach, or occurs after the invasion of fever, and before reaction comes on. In these cases, however, congestion of the large vessels and right side of the heart, owing to, and asso- ciated with, depressed power of the organic nerv- ous system, is chiefly concerned in overpowering or weakening the heart's action, and lessening the supply of blood to the brain. — The increased function of remote organs, and the derivation of vital action from the brain or heart, or from both, as in impregnation and quickening in the female, and in various diseases of the abdominal organs, will sometimes induce fainting. The sudden transition from a recumbent to a sitting or an erect posture, in delicate or debilitated persons, is often followed by vertigo, quickly passing into swooning ; and is obviously caused by the rapid return of blood from the head, and the diminished supply to this part, in conjunction with its sudden and overpowering reflux to the left side of the heart. 10. It is unnecessary to adduce every circum- stance that occasionally causes fainting, as they may be referred to the above heads ; and as there is scarcely an occurrence or external agent which powering reflux of blood to the heart, is difficult will not, on some occasion or other, however rare. to determine. Something may also be owing to the consequent diminution of resistance to the heart's action, and change in the accustomed states of several viscera, and to the effects upon the abdominal ganglia. It is very doubtful, that the syncope, which sometimes occurs upon the removal of the ligature from the arm after bleed- ing, and upon stopping the evacuation, arises altogether from the loss of blood, as fainting often takes place in such circumstances, although no indications of its approach existed at the time when the flow was stopped. In this case at least, if not in others where pressure is removed from internal venous trunks, the suddenly increased return of blood overloads the right side of the heart, and overpowers its action for a time, until the load is removed either slowly or more rapidly by re- storing nervous energy. In this manner general or relative plethora may cause syncope, the moving power being insufficient for the body to be moved. 9. c. There are certain causes of sivooiting lihich seem to act both upon the nervous sijstem and upon the heart, or upon the latter through the medium of the organic system of nerves. — These are — , 1st. Agents from without that make their impres- sion on the respiratory passages. Some of the first class of causes act also in tliis way ; espe- cially mepliitic or infectious effluvia. Instances have occurred of persons having swooned upon exposure to the effluvium of pestilential diseases, ' and of death having soon afterwards taken place. Such an occurrence could not have arisen from induce it, when acting energetically on suscep- tible constitutions. On many, however, of the occasions in which it has been said to occur by writers, leipothymia has been mistaken for, and confounded with, it. Thus Heberden, in stating that epileptics are liable to faint upon wakening in the morning, has mistaken this state for leipothymia, which is common in the hori- zontal posture, sensation and respiration being nearly abolished, but the pulse retaining its ful- ness and strength ; whereas syncope rarely comes on, and generally disappears in this posture. In epileptic patients, leipothymia often occurs both when falling asleep and on wakening; but syn- cope principally on suddenly assuming the erect posture. 1 1 . There are some occasional causes, the operation of which is not easily explained, such as warm baths, heated rooms, and overcrowded assemblies ; silting with the back to the fire, par- ticularly at a meal ; and great rarefaction of the atmosphere. These, probably, act chiefly on persons whose circulating fluid is deficient in quantity, by deriving it from the heart and brain. They more frequently, however, occasion leipo- thymia and apoplexy or convulsions, especially in the plethoric. 12. The occasional exciting causes seldom act excepting on susceptible or predisposed consti- tutions. These are — the debilitated by scanty nourishment, by acute diseases and profuse dis- charges ; persons whose circulating fluid is defi- cient in quantity ; the delicately constituted. the effect produced upon the brain solely, or even ' especially females; and peculiar idiosyncrasies, chiefly. Indeed, I believe that all agents which Those who possess much sensibility and little impress nerves of sensation, especially those of moral courage or force of character — who have smell and taste, act more immediately and ener- getically upon the heart than is usually admitted. — 2d. Sudden and intense changes induced in various parts of the body may be sympathetically Vol. I. been effeminately brought up, indulged in child- hood and youth, and unaccustomed to the con- trarieties of life — are verj' subject to syncope. Some females, especially the hysterical, weak 3L FAINTING — Diagnosis, and excessively indulged, are remarkably liable to faint from the sliglitest mental or corporeal cause; and there is reason to believe that tlie liability is increased by repetition or the habit of fainting. 13. Pathological Inferences. — 1. In syncope, the heart's action never, perhaps, entirely ceases until it terminates in death. — 2. In fainting from hiemorrhage, cerebral influence, especially the voluntary powers and volition, is abolished before the heart's action is reduced to its lowest state ; but, unless the swoon be complete, sensi- bility and consciousness are not entirely sus- pended. — 3. The like obtains in fainting from moral emotions and impressions made upon the senses; cerebral influence is first diminished, and instantly afterwards the action of the heart is weakened, the weakened vascular action still further impairing cerebral power, until fainting is the result. — 4. Several causes, both external and internal, or pathological, particularly those already specified ( ^ 9.), seem to act coetaneously and co-ordinately upon the brain and heart, through the medium of the organic system of nerves ; whilst others of the same class of causes (§ 9.) seem to influence more immediately and especially the heart through the same channel. — 5. Cer- tain causes may suddenly derive the circulating fluid to the external surface or other parts; and the sudden diminution of the quantity returned to the heart and propelled to the brain, may in- duce faintness or full syncope. — 6. The sudden reflux of blood to the right side of the heart, es- pecially when it supervenes rapidly upon the states just specified, may occasion fainting, by overpowering the heart's action, and thereby diminishing the supply of blood to the brain. — 7. Fainting may arise from inflammation of the heart, or efl^usion into the pericaidiuin. — 8. It may also occur from the imperfect action of the heart caused by deficient organic nervous power, particularly of the cardiac nerves, with or without dilatation of the cavities, and weakness or softness of the parietes of the organ. — 9. It may be occa- sioned by circumstances preventing the return of blood to the heart. — To either of these two last are to be imputed the fatal cases of syncope related by Mr. Chlvalier and Mr. Wokt.hington, in which the cavities of the heart were found empty and relaxed, and thelarge veins adjoining devoid of blood. 14. Indeed, death may supervene in any of the modes in which syncope is produced, especially when carried to the extreme. Thus I have seen, in two instances, a moderate doseof the acetate of morphine occasion loss of voluntary motion, and scarcely perceptible pulse and respiration — the characteristic piienomena of swooning. A larger quantity might have caused death; its operation — extended from tiie stomach to the heart and brain — being tiie same, but so great as to put an end to the functions of these parts. Other causes, inducing any one of the pathological states now assigned, may act, in favourable cir- cumstances, and in highly predisposed persons, so energetically, as to terminate allogctiier the vital actions ; predisposition or pre-existcnt states of the frame, such as have been mentioned, being often as influential in producing the result, as the rnorc direct cause. 15. Ill, Diagnosis. — Syncope may be con- founded with apoplexy , -nith the seizures to which the term leiputhiimia is strictly applicable, with asphyxy, with certain states of hysteria, and with death. — (a) The strong, laboured, or stertorous breathing, and the full strong pulse; sufficiently distinguish apoplexy (see that article, § 66.) from fainting. — b. In leipothymia, volition and volun- tary motion are abolished, and consciousness nearly or altogether : Ijut the pulse either is not affected, or is even fuller than usual ; and it is more frequently the first stage of, or followed by, epileptic and apoplectic seizures, than true syncope. Frequently, also, leipothymia is inti- mately associated with epilepsy, the former being either the earlier manifestations or the lesser grade of the latter. — c. In asphyxy, the actions and functions of respiration are the first to cease ; the circulation of venous blood continuing for some time, until, owing to the privation of pure atmospheric air, the passage of blood through the lungs becomes obstructed, as first shown by Dr. Williams {Ediii. Med. and Surg. 'Journ, Oct. 1823.), when total arrest of the pulmonary cir- culation, abolition of the cerebral and nervous functions, and lastly, cessation of the heart's action (see Asphyxy, § 14 et seq.), are the con- sequences. Respiration and circulation are here quite at an end ; and the countenance and general surface are reddish, livid, tumid, orbloated; whereas in syncope the face and surface are pale and collapsed, and the respiratory functions and circulation still continue, although in a low and occasionally almost imperceptible state. In the former, there is remarkable congestion of the lungs and head : in the latter, the brain is 'gene- rally insufficiently supplied with blood ; and the circulation of the lungs, although languid, is seldom obstructed, and never altogether arrested, unless a termination in death supervenes. — d. Various manifestions of hysteria either very closely resemble fainting, or are in some way or other associated with it. The more remarkable phenomena of hysteria may follow, or precede, fainting, most frequently the former ; but the loss of motion and sensation often partakes more of the characters of leipothymia, than of swooning, the pulse at the wrist being but little affected. Pain under the left breast, borborgymi, and a sense of suffocation, which commonly precede the hysteri- cal form of syncope, sufficiently mark its nature ; and even when these are not present, other signs soon manifest themselves, especially convulsions, weeping, laughing, &c. (See IIystkuia.) — e. Syncope is rarely so profound as to be mistaken for death ; but Pohtal and CiiAniiiiiRET, with some wiiters on medical jurisprudence, concur in thinking that it may be both so complete and prolonged as to endanger premature interment in countries where the last rite is early performed. Whether or not the action of the heart, which cannot be altogether abolished even in such cases, may be detected by the stethoscope, I am unable to state ; but it surely cannot continue many minutes without detection upon a strict scrutiny, unless death have taken ])lace. The state of the cornea, which is soon covered with a film, or deprived of its delicate transparency, and afterwards collapsed ; the appearances of the thorax upon examination ; the signs yielded by auscultation ; the condition of tho body in respect of flexibility, &c. ; and the FAINTING —Treatment. temperature under the armpits, &c.; will ge- nerally decide the question even in the most doubtful cases. Placing a mirror before the face, or down beneath the nostrils, and observing whe- ther the former be moistened, or the latter moved, have been long popular means of ascertaining the certainty of death, as happily shown by Shakspfare (^Lear, act v. sc. 3., and Henry the Fourth, activ. sc. 3.) 16. IV. Treatment. — Syncope is frequently not only its own cure, but often the means of removing the cause which induced it. — When occasioned by hemorrhage, the languid state of the circulation permits the formation of coagula, which plug the vessels and arrest further dis- charge ; and the loss of the voluntary powers causes the patient to fall in the very position which, of itself, generally restores the use of his faculties, by facilitating the transmission of blood to the brain. The i7idications are — a. To remove the cause of the affection; and, b. To recover the patient in the seizure. 17. ^. For obvious reasons, the second inten- tion often may be the first required, particularly when called to him in the attack. The patient should be placed in the horizontal position, and removed to an open and moderately cool air ; and fragrant and cold water — lavender water, Cologne water, or simple water — may be sprinkled on the face, or rubbed on the palms of the hands, &c. In more profound cases, frictions of the limbs, epigas- trium, &c. may be assiduously practised in a well- ventilated chamber; and the usual stimuli — aether, camphor, ammonia, &c. — given inter- nally, in moderate or appropriate quantity, as soon as the patient can swallow. The recumbent posture should always be continued until recovery is complete. 18. When syncope supervenes upon blood- letting, the recumbent posture should constitute the whole means of restoration ; for unless the operation has been very injudiciously resorted to, this will be sufficient for recovery. The use of stimuli in this case, will only increase the conse- quent reaction, and often aggravate the disease for which the depletion was employed. For syn- cope from diseases cf the heart, a moderate and discriminating use of stimulants is often neces- sary; but they may be injurious if it aiise from inflammation of the heart or pericardium. When it is caused by hismorrhage, stimulants are very frequently hurtful, as they inteifere with the con- sequent changes in the vessels, preventing a re- turn of the hajmorrhage ; but extreme cases and circumstances occasionally arise, rendering the use of stimuli indispensable. 19. If syncope occur after parturition , ehher from exhaustion of nervous power, or from hae- morrhage, internal and external stimuli ought not to be delayed. Swooning from haemorrhage in the puerperal state always demands immefliate and appropriate treatment, as it arises not only from the loss of blood, but also from exhaustion and the sudden removal of an accustomed pres- sure affecting more or less all the abdominal and thoracic viscera — from the combination ot the three most powerful occasional causes of the af- fection. Eesides, syncope supervening after the recumbent posture is assumed, is never devoid of danger ; and the imperfect contraction of the uterus so generally conuected with the production of haemorrhage, will not be remedied by the con- tinuance of tliis state. 20. Bloodletting has been considered by some writers necessary to the cure of certain forms of syncope, especially by those who have con- founded leipothymia with it, which is often be- nefited by depletions. Zacutus Lusitanus relates a case in which he practised it largely ; but the fainting was there evidently connected with disease of the heart, — bloodletting being often necessary in such circumstances, although requiring much discrimination, both as to its adoption, and to the mode and extent of em- ploying it. In the actual state of syncope it can hardly be resorted to without risk. The practice in such cases must depend upon the in- ferred nature of the heart's disease. I was some years ago called by a neighbouring practitioner to a patient suffering from recurring syncope, vo- miting of all ingesta, and severe pain in the epi- gastrium, with anxiety, &c. The disease was viewed as acute gastritis, and appropriate treat- ment adopted ; it terminated, nevertheless, fatallv in a few hours. On dissection, evidence of in- tense inflammation of the pericardium, particu- larly the part reflected over the heart, was found. 21. When vomiting supervenes during syncope, a speedy removal of the affection is the conse- quence, unless the syncope be, as in the preced- ing case, a sign of a most acute and dangerous disease, wherein bloodletting should be resorted to. When fainting arises from the quantity or quality of the ingesta, the exhibition of an emetic is generally beneficial. 22. The question has been proposed by Brauseu, whether bloodletting should be per- severed in or not, when it almost immediately causes syncope, without any evident cause ? Such cases are not infrequent in practice ; and I have met with the occurrence even where venaisection appeared most requisite, and the patient by no means fearful of its perform- ance. In a case of this kind, which lately oc- curred to me, copious local depletion was substituted with great benefit ; but in a still more recent case, the patient recovered by means of internal treatment, without bleeding in any way. The question, theiefore, cannot be answered in a positive manner one way or the other, but where syncope takes place, bleeding is not re- quired in the great majority of cases, and it may be injurious. At a time when bloodletting was viewed as the chief remedy in fever, and directed to be performed as early as possible in the disease, I had opportunities of seeing it practised in the cold stage, or previous to the developement of reaction, of both the remittent and continued types; but it almost instantly, or before two or three ounces of blood had been withdrawn, produced syncope of a piofound and serious kind, and proved ma- nifestly hurtful. The results would liave been very different had the operation been deferred to the s{age of reaction ; and hence, although in- stant syncope, or even faintness, upon blood- letting, is an indication of its injurious tendency, if persevered in at the time, yet a consequent stale of action, general or local, may arise in a very short time, in which it will be borne to a very great extent without this affection resulting, and will prove most beneficial. 3 L2 884 FEIGNING DISEASE. 23. B. The removal of the causes of the affection, Avhen these are of a constitutional or structural kind, must be attempted after recovery from the seizure. If it depend upon Debility, the means advised in that article will be requisite ; and m other circumstances, the treatment suitable to in- ferred pathological conditions should be practised, as pointed out in the places where sucii condi- tions are more especially and appropriately con- sidered.— The prevention of a return of the affection will be most effectually secured by this procedure. BiuLioG. AND Refur. — Aretceus, Acut. 1. ii. c. 3. — ^e//(«, Tetrab. ii. s. i. c. 9G.—Pnoptitsis, cough is pretended, and the saliva coloured by pricking, scratching, or sucking the gums ; or by holding Armenian bole, brick-dust, vermilion, &c. in the mouth. An attentive examination of the sputum, and of the physical and rational symptoms, will generally lead to detection. Hiematemesis is often feigned by swal- lowing bullock's blood, and soon afterwards by inducing vomiting. If the quantity taken be considerable, vomiting will often follow without any aid. Instances of deception practised in this way are mentioned by Sauvages, Metzger, and Beck.. A close investigation of the symptoms, and, if suspicion be occasioned, a strict surveil- lance, will generally prevent a continuance of the imposture. 26. IlEAitT-ArrECTiONS have been simulated, in order to escape from the public services. AIM. Peiicy and La'jrent state, that a ligature has 3 L4 JEIGNING DISEASE. been found so firmly bound around the neck, as to cause a livid and swollen countenance, and disorder the heart's action. Dr. Quareier and Mr. Copland Hutchison ascertained, that white hellebore was often used by sailors to produce this effect ; vomiting, purgmg, syncope, tremors, and nervousness, followed by palpitations, being the usual consequences of a large dose of this substance. Mr. Dunlop states, that death was occasioned in one instance by the use of hellebore with this intention. 27. Hepatic Disorders are often feigned by soldiers in warm countries, particularly in India; and by officers and othersdesirous of returning to Europe. If any doubt of the reality of the com- plaint exist, the person should be undressed, and carefully examined by percussion and the stetho- scope. The absence of enlargement in the region of the liver, the complexion, and appearance of the surface and limbs, and the state of the pulse and respiration, are the circumstances which should chiefly be considered. It ought not, however, to be overlooked, that most serious disease of the liver may exist without enlarge- ment ; and this viscus may be considerably en- larged, and even rise up into the right thorax, ■without being felt below the ribs. Hence the propriety of having recourse to percussion and auscultation in the investigation, especially when otiier proofs of disease are wanting. 28. Hernia and Hydrocele have been simu- lated by blowing air into the cellular membrane of the scrotum. Mr. C- Hutchison met with an instance of hernia being feigned, by elevating the •testes to the external abdominal rings. Detection in cases of this kind is quite easy. 29. Hysteria is not infrequently feigned. Dr. DuNGLisoN directs sternutatories to be employed ; but the affection may be real, although they pro- duce their usual effect. Detection is by no means easy, especially when an intelligent female simu- lates this complaint. In a case to which I was lately called, the moral circumstances and the symptoms induced me to infer deception ; and I accordingly took my leave, by simply stating, in the patient's hearing, that, if recovery was not complete in a few minutes, the affusion of cold spring water over the head and neck would cer- tainly have the desired effect. It should, how- ever, be recollected, that females who are really hysterical are the most prone to feign disease ; this affection and the desire to simulate others fre- quently arising from the same cause, viz. uterine irritation. 30. Jaundice, notwithstanding the difficulty of the attempt, has been succefsfully simulated, particularly in France, during the lale war. Con- scripts employed an infusion of turmeric to tinge the skin, muriatic acid to give the evacuations a clay-colour, and rhubarb to heighten the colour of the urine. But the white of the eye cannot be changed by art, although smoke has been tried for this purpose. Washing the surface and pre- venting access to the materials of deception are the chief means of detection. 31. Insanity in some one of its various forms — but most frequently mania, melancholy, and idiocy — is fre(|uently feigned ; and detection is by no means easy, 'riicrc can be no doubt that, in the public services, pretenders often gaine) The symptoms vary remarkably in this stage with the type and form the fever assumes — with ihe complications above alluded to — with those which may supervene during the advanced progress of this period — with the more latent changes in the mucous surfaces, or in parenchy- matous structures — and with various influences and circumstances occurring during the disease. In some varieties of the continued type of fever, the whole of this period proceeds with little or no 3M 3 902 FEVER— Types and Forms. evening exacerbation, wliilst, in others, exacer- bations are very manifest ; but this depends much upon the prevailing epidemic constitution. In general, fever caused by infection, and compli- cated with serious visceral disease, or charac- terised by severe affection of the fluids and soft solids, is strictly continued ; whilst that produced by terrestrial emanations assumes somewhat of the remittent form, although presenting much of the continued type. — (c) The duration of this state of vascular reaction is sliortest in agues, in which it does not exceed a very few hours ; and, in con- tinued fevers, it is brief in proportion to the seve- rity of the disease. It rarely, even in the more protracted cases, exceeds fourteen days. — (d) The j>athological states of the early part of this stage continue in great measure in this part of it ; but vascular action exceeds vital power, which is gradually lowered ; and the circulating and se- creted fluids and the solids themselves become vitiated as already stated, and as will be more particularly shown in the sequel. 40. D, The period of Crisis — Stadium Criseos — Judicium Febris. — Crisis in fevers is a sudden change taking place at a particular period of the disease, and terminating it. A crisis is brought about chiefly by the efforts of nature, or, in other words, by the febrile action itself inducing changes in the functions and organs, productive of a salu- tary effect. Although it often takes place by the unaided efforts of life, it is frequently assisted by art, and should not therefore be preferred before art judiciously employed. The critical days are the 2d, 3d, 4th, and 5th (quotidian period); the 7lh, 9th, and 11th (the tertian period) ; tlie 14th, 17th, and 20th (the qiiartan period). After the 20th, crises are obscure, and seldom occur till the 27th or 28th. Salutary changes are ob- served chiefly on the above, unfavourable changes on the intervening days ; but death may happen on any day. A very cold climate or season, or either extreme of temperature, the impure air of an hospital, the continued operation of the causes, the complications, great vitiation of the fluids and solids, an active treatment, interfere with, retard, or prevent crimes. If the exacerbations be well marked, and vital energy not very much reduced, a favourable crisis may be more con- fidently expected. Crises are sometimes inde- cisive, or consist of several abortive attempts before the end is attained, especially when the powers of life are much lowered. When several critical efforts are required, each succeeding one renders the task more easy for the next, until the disease is gradually subdued. (See Crisis, and Critical Evacuations.^ 41. E. Period of Decline — Decrementum — Declinatio. — Sometimes the decline is prompt and rapid, especially after a marked crisis (see art. Crisis) ; at other times it is giadual and slow, particularly when only slight and imperfect crises have occurred, or when the disease termi- nates in resolution without any very manifest critical evacuation. In the former case, the de- cline passes quickly into convalescence ; in the latter, this stage is often characterised by slight exacerbations, called by some writers posthumous crises, wiiich are a[)t to be misunderstood. In the fevers of tiiis country, which frequently de- cline gradually, or in the second of these modes, the syinptoms indicative of vital disturbance ge- nerally subside in the order in which they ap- peared. Organic nervous influence and the dependent functions are the first to be restored ; the respiratory, secreting, and excreting actions become natural ; the perspiration more general, free, and, if it have previously been offensive, clammy, or partial, more natural and genial ; the tongue begins to clean on the sides and point, and is more moistened by the commencing return of the secretions poured into the mouth ; coma and delirium subside ; and the patient regains his power over the alvine excretions, if it has been lost ; the sensorial faculties and sleep reappear, and the latter becomes more refreshing ; the loco- motive powers are freer and more energetic, the patient being enabled to turn upon his side, the sense of soreness and lassitude being diminished ; the appetites and desires return, and the excre- tions are gradually re-established. The action of the heart is the last to subside to its natural fre- quency, and generally continues long afterwards to be readily excited by slight stimuli. The urine is abundant, and deposits a copious sedi- ment ; the bowels become free, the motions con- sistent and feculent, and the skin gradually as- sumes a clear and healthy appearance ; but emaciation increases rapidly, or now is more apparent ; absorption, more especially of the less animalised and less highly organised parts or molecules, proceeding rapidly as soon as vascular reaction subsides. 42. F. Convalescence — Stadium Refectionis — Convalescentia, — I agree with Richter and HiLDENBRAND iu Considering this as a stage of fever. The propriety of this view is obvious, espe- cially as regards the future health of the patient. It is, however, altogether distinct from the ma- lady, inasmuch as it does not present any of the constituent phenomena, which still continued to exist in the stage of decline, but merely those of debility consequent upon acute disease. During its early progress, the bulk of the body still con- tinues to diminish, or does not increase until it is far advanced ; all the symptoms entirely dis- appear ; the appetites, desires, digestive functions, the secretions and excretions, are re-established, but are apt to be disordered, and therefore require supervision; the cuticle and sometimes the -nails are exfoliated, and the hair falls out. Irritability and sensibility often are increased ; and tinnitus aurium is sometimes troublesome ; but these sub- side as health is restored. — Belapses are apt to occur in this period, especially from premature exposuic or indulgences, or from disorder of the digestive organs ; but they more rarely follow when fever arises from infection or from a specific contagion, though other diseases may be thereby occasioned. 43. IV. Of Tin-. Tvpes and Forms or Feveu. — i. These ftte determined by the following ciV- cumstances : — n. ]?y the previous health, the tem- perament, and habit of body, and vital energy of the patient; — h. Hy tlie state of the vascular system, particularly as to the existence of ful- ness or deficiency of blood; — c. By the specijic kind of miasm or cause exciting fever; — (/. By the prevailing epidemical constitution; — e. By other causes, predisposing, exciting, concurring, and determining ; and by the intensity of their action ; — f. J5y tlie external and internal — the physical and 7noral — injiuences, to which the patient is subjected, from the period at wiiich FEVER-— Types and Foums— Terminations. 903 the morbid impression was made upon the frame ; — S- ^y ^^^ internal civigestinns, determinations, or injianunations superinduced in its early course ; — h. By tlie intensity of the morbid impression made upon the vital endowments, especially of the organic and cerebro-spinal nervous systems ; — i. By the degree to which vital power is sup- pressed or lowered throughout the frame ; — k. By vitiation of the fi)Ti(/(i//(in- _/ii(i(i»- and soft solids ; — and, /. By the treatment and regimen during the commencement and early progress of the fever. These circumstances both determine the particular type, the form, and tlie complications of fever, and change one type or form into another. 44. ii. The Tijpes and Forms, which usually present themselves as the result of the remote and efficient causes, and as influenced by the above circumstances, are — A. The Intermittent, — a. of a quotidian, — b. o( 3. tertian, — c. of a quartan, type; either of which may be — a. simple, — $. double or redu- plicating,or iii-egnlar, — and, y. complicated — 1st, with abdominal visceral disease, — 2dly, with ce- rebro-spinal aflection, — 3dly, with alterations of the fluids and soft solids, — and, 4thly, with.vis- ceral lesion and with change of the fluids and solids — the pernicious or malignant agues of some parts, particularly in warm climates. B. The Remittent: — a. Simple, — b. bilious, c. inflammatory, — d. bilio-inflammatory , — e. ady- namic or malignant, — /". gastro-adynamic , — g. typho-adynamic, or associated with severe cerebral aflection, — h. complicated — a. with pulmonary disease — (3. with disease of the spleen, — y. with disease of the large bowels, — i. slight and chronic. C. The Continued: — a. Ardent fever, — a, diary fever, — B. bilious, inflammatory fever. — /(. Synochoid, — a. simple, — |5. complicated, with predominant affection — 1st, of the stomach and liver — mild gastric fever, of authors, — 2dly, of the intestinal mucous surface — mucous fever, — 3dly, of the cerebro-spinal system — nervous fever. — c. Typhoid or Adynamic fever, — a. simple, — ■ B. complicated with predominant affection — 1st, of the gastro-intestinal mucous surface — ady- namic, of French writers, — 2dly, of the lungs and bronchi, — 3dly, of the cerebro-spinal nervous system — ataxic, of Pinei., — 4thly, of the mucous surfaces and brain — /i/p/nis, of writers, — 5thly, of these surfaces, brain and skin, with efflores- cence or eruption — exanthematic typhus (Hil- DENBRAND),orwith petechias — petechial typhus, — 6thly, of the vascular system and circulating fluids — malignant or putrid fever. D. Pestilential Fevers : — a. Evincing pre- dominant affection of the fluids and solids, and of the gastro-intestinal mucous surface, with yellow skin — epidemic yellow fever ; — b. of the fluids and solids, and of the lymphatic glands — plague; — c. of the vascular system and blood, and of the lungs and gastro-intestinal mucous surface, with spasms — pestilential cholera. E. Ex anthematous Fevers: — a. Scarletfever, — a. mild or benign, — 0. synochoid scarlatina, — («) simple, — (b) complicated; — y. adynamic scarlatina — (a) simple — (6) complicated, — the complications in both varieties being with inflam- mation of the throat, or of the gastro-intestinal Tnucous surface, or of the membranes of the brain, or of tlie respiratory surfaces, or with any two or three of them ; — b. Meades, — a, mild, — B> sy- nochoid measles, — (a) simple — (b) complicated — y. adynamic measles — (a) simple — (h) com- plicated — the complications being nearly as above ; — c. Small-pox, — a. mild, — /?. synochal — (a) simple — (6) complicated, — $. adynamic or con- fluent — (a) simple — (6) complicated — the complications being nearly as above ; — d. Erysi- pelas may be similarly divided. F. PiiERPERAL Fevers : — a. Inflammatory, — . a. inflammation of the uterus — 0. of the ovaria and tubes — y. of the peritoneum — 5". of any two or all of them ; — b. Synochoid puerperal fever, — a. complicated with inflammation of the peri- toneum — /3. with inflammation of tlie uterine veins, &c. — ><. with inflammation of the uterus and appendages; — c. Malignant or adynamic puerperal fever, — a. simple — (3. complicated with predominant aflection — (u) of the blood — (6) of the fluids and peritoneum — (c) of the fluids, serous surfaces, and soft solids generally — (d) of the blood, the uterus, or of the uterus and appen- dages— (e) of the internal surface of the uterine vessels, substance of the uterus, &c. 45. iii. Of the Conversion of Type, Form, S;c.— The above types, forms, and states, not only may result from some one or more of the above circum- stances (§ 43.), but they also may be variously clianged and modified by them, during the course of the disease — a simple state of fever becoming more intense or complicated, according to deter- mining influences — the intermittent type becom- ing irregular or complicated, or passing into a simple, severe, or complicated remittent, and this latter into the continued type, frequently with predominant affection, either of the nervous or vascular system, or of some important viscus, or of both. This change of a slighter into a severer disease, and of simpler states into those which are more complicated, commonly arises from the cir- cumstances just stated (§ 43.), and more especially from those concurring and determining causes about to be enumerated (§ 64, 65.); and is much more frequent than an alteration from a severe to a slighter form of fever, as that of a continued to a rer^ittent, or of the latter to an intermittent type, which, however, sometimes occurs. 46. V. Terminations. — Fevers terminate — 1st, in a return to health ; — 2dly, in some other disease ; — and, 3dly, in death, A. A termination in health is favoured — a. by a previously sound constitution, and a spare habit of body ; — b. by the absence of great intensity of the remote causes, and by their nature ; those which are slight, or which proceed from endemic sources, or act singly, being less noxious than those arising from living animal bodies crowded together, or from the sick, or from various associations of animal effluvia, and of other causes ; — c by the absence of unfavourable influences and accidents, phy- sical or moral, during the progress of the disease, — d. by a complete removal from the continued operation of the exciting, and even of the pre- disposing, causes during the treatment, and by the advantages of wholesome air and judicious management ; — e. by the easy circumstances and equable mind of the patient; — and, ^". by the occurrence of a crisis. The modes by which fevers terminate in health, are — 1st, by crisis, to the production of which art can only indirectly tend, but still tends very powerfully in some cases ; — 2dly, by a resolution of the disease* 3M 4 904 FEVER— Terminations — without any crllical discharge. This is the most j frequent mode observed in the fevers of tliis cli- I mate; and results, in a great measure, from the treatment adopted for them, particularly in their early stages, which generally interferes with, or prevents the occurrence of, the natural evacu- ations constituting crises (see this article). It is chiefly when artihcial evacuations have not been pusiied far, that crises manifest themselves. 47. B. Tenniitiitiuiis in other diseases aro owing — a. to previous disease, or the condition of par- ticular viscera at the time of attack ; — b. to the severity and concurrence of the causes, and the intensity of the disease ; — c. to local determi- nations supervening during the progress of fever, giving rise to complications ; — (/. to improper treatment, as a too heating regimen, the con- tinued use of cathartics, or the adoption of such as are too irritating; — e. to incomplete or im- perfect crises ; — f. to the too early or too li- beral use of stimulants or tonics during the disease, or during convalescence ; — g. to the continued operation of the causes during treat- ment; — h. to the occurrence of new, determin- ing, or superadded causes, as crowding of the sick, bad ventilation, mental perturbations, in the progress of the malady ; — and, i. to neglect, and to a blind confidence in the efforts of life. The diseases which may be thus superinduced, are — a, inflammations of particular organs ; — /3. en- gorgements, obstructions, and enlargements of glandular viscera, particularly the spleen or liver; — y. effusion of serous fluids into shut ca- vities, as into the peritoneal and pleural sacs ; — ^. partial or general anasarca ; — s. ulceration or abrasion of mucous surfaces — chronic diarrhoea and dysentery ; — ^. haBiiiorrhage from mucous membranes; — ». inflammation of some part of the vascular system; — &. apoplectic, paralytic, or epileptic seizures; — i, mania and insanity in some one of its forms. 48. C. A terrnination in death is favoured — a, by constitutional vice, excessive vascular ful- ness, and a bad habit of body ; — b. by the in- tensity of the cause and of the disease; — e. by the continued operation of the chief causes ; — d. by the nature of the complication; — e. by neg- lect or improper treatment ; — /. by unfavourable crises ; — • and, /;. by the other circumstances just mentioned (§ 47.) as productive of consecutive diseases. — This result cannot be imputed to any single change. Two or even more of the fol- lowing are evidently concerned in its production : — a. Extreme suppression of organic, nervous, or vital power ; — B. Lesions of organs arresting their functions, and impeding those actions ne- cessary to continuance of life ; — y. Mtiation of the fluids, changing the condition of, or destroy- ing, nervous influence and the rest of the vital manifestations; — J. J^xhaustion of vital power, and alterations of the intimate organisation of the viscera, as in malignant fevers ; — e. Organic injury sustained by the nervous system, espe- cially its larger masses; — ■^. Diminished or ex- hausted irritability of the heart, the patient ex- piring as in fatal syncope; — ». Suftbcation from effusion into the bronchi ; — b. Congestion of the lungs, heart, and large vessels, to an extent beyond Uie vital power of these parts to overcome ; — and, ». Deficiency of idood so considerable as to destroy tho relative conditions of the contained fluid and Appearances after Death. containing vessels ; for when the tonicity, the or- ganic contractility, of the latter is much impaired, as in the advanced stages of adynamic fevers, and the amount of circulating fluid is also greatly les- sened, the vessels will be unable to accommodate themselves to their contents, and the consequences must necessarily be most dangerous, if not speedily fatal. 49. VI. Of thk ArrF.AUAxcES after Deatif. — A. — a. Cases have been met with, wherein the most careful examination has failed to detect any lesion, or strictly morbid appearance, in any of the general systems, or individual textures, or in the fluids contained in the large vessels. It must be admitted, therefore, that changes may take place in the nervous system, or in the blood, suflicient to cause the most acute disease, or even to subvert life, without being so gross as to be demonstrable to our senses; but allowing this, the fact now staled is important, inasmuch as it most materially affects the question as to the nature of fever. — b. Other cases have been ob- served— and much more frequently than the fore- going— in which the morbid appearances were not commensurate with the intensity of the symp- toms referrible to their seats, and were quite in- sufficient to account for a fatal issue. — c. Fre- quently also, lesions of parts have been discovered, which were not indicated by symptoms, or by the usual symptoms, or very slightly and imper- fectly ; those changes having been more or less, or even entirely, latent during life, although their nature evinced their existence and progress during the advanced stages of the disease. This circumstance may have arisen from an oppressed or exhausted state of the brain ; or from the changes in the circulating fluid impairing sensi- bility; or, as Dr. Alison suggests, in his very able and lucid exposition of the Pathology of Fever, from an enfeebled state of the circulation at the time when these local affections take place. 50. -B. As to the nature of the changes observed, opinions are somewhat difierent. — Many writers have viewed them as purely inflammatory ; others as consequences of irritation, or of inflammatory irritation ; this condition being viewed by them as a lesser grade or modification of inflammation. It is important to entertain precise ideas as to their nature ; and to mark the circumstances in which they differ from those changes indisputably resulting from pure inflammation, particularly as occurring in a previously healthy constitution. — 1st. The lesions observed in fevers rarely present effusions of lymph or pus, especially in the ady- namic and typhoid fevers, — consequences com- monly following true inflammation; and the cases in which these effusions have been detected, have been instances of local inflammation super- vening in the course of the more sthenic or in- flammatory forms of fever. — 2dly. The lesions or inflammatory appearances have been more super- ficial, diff'used, and attended with a darker disco- louration, and greater softening of the artected and adjoining parts, than in idiopathic inflamma- tion.— 3dly. The appearances thus characterised, difl'er the more from inflammation, the lower the type of fever and the more vitiated the circulating fluids. — 4lhly. They more nearly resemble ery- sipelatous inflammation, than any other. — 5thly. They are met with in certain tissues more fre. quently than in others; and, excepting deficient FEVER— Appeaban'ces aiteh Death. cohesion and discoloration, are commonly limited to these tissues. 51. C, The organs most frequenily altered in structure, are, the digestive mucous surface, the liver, the spleen, the bronchial surface, the lungs, and the brain and its membranes. But tlie fre- quency of the alterations of each differs widely in different fevers ; the first and last of these tex- tures being upon the whole most frequently and seriously changed. — a. The digestive mucous surface is very generally affected in some fevers, particularly in certain that are endemic, as in the fevers of Paris, and in warm or marshy countries. Tiie alterations of it are often insi- dious, latent, or much greater than the symptoms indicated ; and they differ from tlie appearances commonly resulting from common inflammation, in the dark discolouration attending them, in their being confined to spots or patches, and in the less frequent effusion of lymph. — They consist — 1st, of livid or brownish red patches, covered by a dark reddish mucus; — 2dly, of softening, tu- mefaction, or thickening of the discoloured spots : — 3dly, of infiltration of the submucous tissue with darker sanious fluids resembling small ecchy- moses or internal petechia; ; — 4thly, more rarely of effusions of small portions of lymph in spots scattered over the membrane; — Sthly, of abra- sions, slougliings, and ulcerations of this tissue, either sparingly scattered, or aggregated, — the latter most frequently in the lower ihum, or near the termination of the ilium. These changes are most common in the parts of the membrane oc- cupied with Peyer's and BuuNNEn's glands, but they also occur in the mucous membrane itself. Their frequency in different parts of the canal in fevers is the same as stated in the article Diges- tive Canal (§36.). — These lesions are seldom seen alone. They are most frequently accom- panied with changes in the mesenteric glands and in tiie encephalon, and are obviously advanced consequences of the general disease ; as thev are observed chiefly in the more protracted cases. They are the com.mon causes of the intestinal ha;morrhages, of the severe pains, and the sinking sometimes occurring in the latter stages. 52. C. Alteratiiins of the liver and spleen are much less frequent in this country, than in warm climates, and the countries of the south of Europe. — a. The change in the liver consists chiefly of congestion, injection of its vessels, softening, and enlargement. — b. The bile seldom presents a healthy appearance, either in the gall-bladder or in the hepatic ducts. — r. The affection of the spleen is most common after the periodic fevers of miasmatous localities ; and consists chiefly of great enlargement, softening, and even gangrene. — d. The pancreas and kidnei/s are not often altered in structure, and the peritoneum still more rarely, excepting in puerperal fevers, and after perforation of the digestive canal. 53. D. The lesions of the respiratory and cir- culating organs are frequently very important. — a. The fauces and larynx sometimes are covered by an aphthous exudation, or are cedematous, in- filtrated, tumefied, and softened; but tlie larynx is seldom affected to the extent of impeding respir- ation, unless in eruptive fevers. — /;. The bronchial mucous membrane is often injected in patches, of a dark red or livid hue, somewhat thickened and softened, and covered by a discoloured, viscid, 905 and frothy mucus. — i-e most necessary in some epidemics, and tonics or stimulants injurious, still the former cannot be practised to the same extent, at least in this cli- mate, as in the phlegmasia- ; whilst in epidemics of an opposite character, bleeding is often inju- rious, and opposite means are required, — a cir- cumstance not observed respecting inflammation. 92. B. Certain of the arguments now urged are equally applicable to the doctrine of conges- tion, or irregular distriliution oj the blood. — a. The espousers of this opinion do not agree among themselves as to the chief scat of congestion ; but granting that congestion very frequently, or even generally, exists at some period of the disease, especially in the large vessels adjoining the heart, it is only one link of the chain of morbid causation and action, itself being caused and attended by, as well as inducing, other changes equally import- ant. Besides, iliose instances which occasionally occur of remarkably great congestion of the large vessels of internal viscera, as from asphyxy, &c., are not followed by the phenomena of idio- pathic fever ; and although, as I shall have to show hereafter, many of the worst forms of fever FEVER — Pathology of, are attended by congestion as one only of the various changes that characterise them, yet others of a slight kind, as ague, are accompanied with still more remarkable congestion during the cold stage of each paroxysm, without further mischief than the subsequent reaction which it aids in developing. — t. When congestion becomes con- siderable, it is referrible to the noxious influence of the exciting causes exerted primarily upon the organic or ganglial nervous system, and conse- cutively upon the vascular system ; the action of the heart being tliereby weakened, and the tone and resiliency of the vessels impaired ; and hence, when the morbid impression on the former is very intense, the effects produced upon the latter are also severe, congestion being only one of these efl^ects. — When, in consequence of the persist- ence of the morbid impression, or change prima- rily produced in the ganglial nervous system, the effects upon the heart and vessels continue, the resulting congestions, with the other concomitant lesions, either cannot be removed, or are re- moved with difliculty ; the heart being rendered unable to exert a due reaction in order to over- come them ; the vessels being incapable of that degree of tonic resistance necessary to a healthy circulation and a regular distribution of blood ; and the capillaries being impaired in all their functions, owing to the state of nervous power influencing them, and of the circulation in them. Thus congestion is established as one of the more evident lesions tiiat follow the primary changes in fever, — but only as one of subordinate importance. 93. C. To the doctrine that imputes fever to the direct contamination of the circulating fiuid bii the material cause, the following objections may be urged : — a. The febrile cause, acting as a poison, should instantly affect the appearance of the blood if it made its first and principal at- tack in this way ; but, when the cause is ener- getic, the effecls, instead of progressively and gradually appearing, as they necessarily would do in this case, instantly manifest themselves in the functions of the nervous systems, more espe- cially of the organic nervous system, and in the functions of the organs actuated by it. I shall, however, have hereafter to show, that the blood is the next animal constituent that becomes af- fected, although frequently in no very manifest manner, at first, especially when disease slowly developes itself upon the exciting causes. — It should not be overlooked, in our researches on this sul)ject, that agents which especially aflfect or depress the organic nervous influence, pro- duce also co-ordinate effects upon the vascular system and on the blood itself, owing to the inti- mate connection subsisting between these two systems.— /). In cases where the morbid impres- sion lias been already made, either by malaria, or by infectious effluvia, the full developement of the disease may be prevented during the first or second stage, by substances which produce a powerful restorative or tonic action on the nerv- ous systems, particularly that of organic life, — an efiect that could not result if the blood were the primary or principal seat of the disease. A powerful stimulant or tonic will instantly cut short an ague, even when given at the commence- ment of the cold stage, — an effect that would vainly be looked for, if its chief seat were in the blood. — c. The phenomena and progress of FEVER — Pathology op. 9i; those diseases, as scurvy and purpura haEsmor- rhagica, ia which tiie blood is especially altered, furnish analogous indications that it is not the primary nor sole seat of fever, but that it is merely secondarily affected, to an extent vary- ing remarkably in different fevers and epidemics ; and that the change in this constituent is only a part of the general slate of disease — is only one of tiie many lesions forming idiopathic fever. — d. The abatement of fever after crises has been considered as evidence of the primary affec- tion of the blood. Granting that morbid matters carried into the circulation, or generated in it from a morbid seminium, are eliminated from it in the form of crises, or by less manifest evacu- ations, still this is no proof that the blood is primarily or chiefly changed ; but merely that it is one of the animal constituents affected, more chiefly, concerned in the production of the dis- ease j but may be readily solved by means of the nervous system of organic life, if we take into consideration its functions and structural re- lations, especially with the vascular system, the circulating fluids, and the excreting viscera. (See Disease, §65.) — rf. I'he early lesions, whether of function or of organisation, characterising the first as well as the advanced periods of fever, cannot be accounted for by assigning the cere- bro-spinal nervous system as the primary seat of the disease ; for, — 1st. As this system cannot influence the action of the heart and the state of the vessels, excepting through the medium of the organic nervous system, and thus only to a very limited extent, changes in it do not explain the alterations of vascular action, and still less the vitiation of the blood , — 2dly. As it does not con- particularly in certain forms of fever, as the erup- i trol animal heat, so it cannot induce those remark live and infectious ; for we often observe critical I able extremes and morbid states of temperature discharges occurring without any permanent distinguishing the malady ; — 3dly. As it does not benefit, as in remittents ; and recovery taking j supply, nor materially influence, secreting sur- place in others without any crises. Whilst, tiiere- ! faces and glands, so it cannot give rise to those fore, a numerous class of fevers, especially the | early changes of function which they present, periodic and simple continued, present little or nor to those lesions of structure which they often no evidence of contamination of the blood their course, unless they change their cliaracters and become complicated, a different class, as the adynamic and malignant, presents as little evi- dence of this change at their commencement ; the vitiation of the circulating current appearing either consecutively upon the morbid impression made upon the nervous system of organic life, or nearly contemporaneously with this impression, and in a less manifest degree, although progres- sively advancing, owing to the affection of this particular system, and its infliience upon the cir- culation. But the arguments which are about to be offered in support of my views as to the primary lesions in fever, will more clearly show in how far the blood is concerned in causing many of the phenomena of fever in its more severe forms. 94. D. The doctrine that Ihe causes of fever first ajf'ect the cerebrospinal nervous sijstem is in- validated by the following considerations: — a. This system either does not send nerves, or it supplies but few nerves, and those often indii'ectly, to the organs especially or essentially affected in idiopathic fevers, as the heart, blood-vessels, se- creting viscera, lungs, &c. — b. 1'hat the chief avenues to this system open to the invasion of the exciting causes, are the organs of sense and the cutaneous surface. Of these, the sense of smell is the principal. Although this sense is evidently impressed by several of these causes, when acting intensely, and admitting that the brain is somev/hat affected in consequence, still the effect produced in this quarter seems inadequate to explain the chief, and far less the whole, of the early phenomena. — c. In some instances, the intense operation of the effluvia generating fever, has produced its effects almost instantly, and even caused death itself with equal rapidity, — a result, which the total annihilation of the cerebral functions could not produce ; but which would necessarily follow the interruption or suppression of the influence trans- mitted to the heart and lungs by the nervou subsequently experience ; — •4thly. As it does not j materially affect the actions of assimilation and nutrition, so it cannot occasion the remarkable I changes they present in fevers ; ■ — and, 5thly. As i it does not present aberrations of function, in the [ slighter and simpler states of fever, equal in de- j gree to those manifested by the viscera chiefly j supplied by the nerves of organic life ; and as, I when such aberrations supervene in a remarkable j manner, they are generally consequent upon those of the organic nervous and vascular sys- tems and of the blood itself, so the primary im- pression made upon it must be much less ener- getic than is supposed by those who support the present doctrine ; although I may grant that it partakes, in some measure, or in some forms of fever, of the morbid impression especially and principally made upon the nervous system of or- ganic life, and extended to the organs which it actuates. 95. E. That the efficient agents of fever act pri- marily and chiejiy upon the organic or ganglionic nervous system, is evident from what has been now adduced ; and is further proved by the following facts and inferences : — a. The intimate connection of this system with the organs of circulation, re- spiration, assimilation, and secretion, on the one hand, and with the cerebro-spinal nervous system on the other, and the influence exerted by it over theirfunctions in health, are sutHcient to show, that morbid impressions made upon it must necessarily affect all the organs and parts, with which it is re- lated.— b. The functions primarily disordered in I fever, and chiefly affected in its course, are pre- cisely those which are especially subjected to the influence of this system. As we cannot, consist- ently with our knowledge of the animal actions in health and in disease, infer that a grave and permanent disorder of any one function can exist, unless either the influence that actuates it is im- paired, excited, or otherwise altered ; or the struc- j ture of the organ, which is the instrument of the system of organic life.^rf. The generation of | function, is more or less affected ; we are neces- fever within the body itself cannot be explained sarily led to inquire as to which of these sources upon the supposition that the cerebro-spinal nerv- the disorder is to be imputed. Having inferred ous system is primarily and solely, or even ' from the nature and extent of the disorder, from 3 N 2 916 FEVER— Pa the causes in which it arose, and the suddenness and manner of its occurrence, as well as from various other circumstances, that it does not con- sist of lesion of structure, we are therefore com- pelled to adopt the former alternative, and, from the kind of disorder, to infer the manner in which the influence actuating the organ is affected. Thus, observing that respiration, circulation, se- cretion, and animal heat are primarily and espe- cially disordered at the commencement of fever, and that various other morbid phenomena are consequently produced, and finding no structural or local change to account for the affection, ue refer it to the state of the influence which actuates these functions. Anatomical and physiological evidence concur in showing that the nervous system of organic life is chiefly concerned in the production of those functions ; and therefore it may be inferred that this system is first impressed by the causes of the disease. 96. But it is not merely requisite to show the particular system first affected, but also to ascer- tain, as nearly as possible, the nature of the affection. This, however, can be only a matter of inference from the kind of disorder manifested in the functions especially subjected to the in- fluence of this system. What, therefore, is the general character of the disorder which these functions first evince 1 — 1st. The respiratory- actions are inadequately performed, volition being often exerted in order fully to dilate the lungs, and the changes in the blood ai'e imperfectly pro- duced ; — 2dly. The action ofthe heart is weakened, and the tone of the pulmonary vessels- lowered, so that the circulation is languid, irregular, &cc., and congestion supervenes; — 3dly. Secretion and excretion are impeded or interrupted, animal temperature diminished, and ail the functions indicate at first depression or suppression of the organic nervous influence. 'J here is, however, reason to suppose that this influence may not only be depressed, but that it may be otherwise alteied, according to the cause which afl'ects it, par- ticularly by specific infectious miasms. It is chiefly to this circumstance, that the opinions of Jackson, Frank, Hildenbrand, and others, re- specting the irritation excited by the material cause of fever, is to be imputed. Whether the alteration in question be called an irritation, or any tiling else, is immaterial, if the term adopted convey any idea of what the change is, in most of the circumstances in which it occurs. But if by this irritation be meant a form of excitement, the term is applicable only to the state of vascular action often consequent upon, and attended by, the alteration of nervous influence, and not to the slate of the influence itself. The whole that we know of the matter, from observation of the ear- liest phenomena, is, that the change evinces diminished power or influence of the system of nerves actuating the organic functions, and very frequently an otherwise altered or morbid state of this influence which cannot well be described, but which is vaiiously modified in different fevers, and is generally attended by depression ; these con- ditions still continuing in diverse grades, although vascular reaction supervenes, which, when it be- comes excessive, increases them, atrd, in con- sequence, hastens on disorganisation. From this it will appear, that the exciting causes of fever first depress or ollierwise alter, or both depress TirOLOGY OF. and alter, the healthy influence exerted by tiie nervous system of organic life. That they pri- marily irritate or excite this system does not appear from the phenomena, unless either of these states associates itself with some other morbid condition which deflects it from its usual forms; but of this we have little proof, unless it be found in the stage of reaction. 'Jhis much, however, is apparent, — that certain causes seem to depress the organic nervous influence more than others ; and tliat some alter it more from the merely dy- namic states, and impress it with a specifically mor'bid character. 97. But, whilst disorder of this influence is thus considered the chief and primary constituent of the morbid impression made by the causes of fever upon the economy, it may be a»ked. Is tiie impression entirely limited to this quarter? or are the cerebro-spinal influence, and the cir'culating fluid itself, also partially and primarily affected? — 1st. As to the former of these, it may be inferred, from a consideration of the circumstance of the nerves of one of our senses being extended over the upper part of tlie respiratory passage — the en- trance to a most important and vital organ — in order to convey, by their reports, intimations of the presence of such gases or vapours, as, if re- ceived into the lungs, would prove injurious, that the more intense causes will act in some measure upon the brain, although in a com- par-atively slight and evanescent manner. The lungs evidently digest the air received into them, as much as the stomach digests the food ; and the entrances into both organs are guarded by two sentinels — the senses of smell and taste — taking cognizance of whatever passes into them. But in cases where injurious effects follow the in- gestion of hurtful matters, is it in the stomach or in the nerves of taste that the morbid impression is to be looked for? and if it be in the former, and not in the latter, that they are to be found, no moie should we infer, as heretofore, that the morbid change is first produced on the brain, and not on the nerves of the lungs, when noxious effects follow the re- spir-ation of a tainltd or infectious air — recollecting always, that respiration does not mean simply the passage of air into and out of the lungs, but the actual digestion of this air by them, the important changes excited by its constituents upon the blood and upon the organic nervous influence, and those effected by this influence upon the blood, and upon the air received into the organ. 98. From various considerations and researches into the subject, in diflFerenl climates, I infer, that, although the more intense causes may affect the brain, and thereby heighten and accelerate the effects upon the heart and stomach arising from the impression made upon the organic nervous system, jet their action in this quarter is evan- escent; and, as I have shown (^94.), insirffi- cient to explain the phenomena. .Judging from my own sensations on having inspired an air so loaded with infectious effluvia as to be remar-kably offensive to the smell, the mor-bid impression was fir-st sensibly felt in the lungs themselves ; numb- ness, weight, or oppression in the chest, was in- stantly felt ; fre<|uent forcible inspir-ations were made, and continued for long afterwards to be made, in order fully to dilate the lungs, which felt as if they were partially deprived of their resiliency ; the pulse became weak, and the animal tem- FEVER — Pathology or perature was lowered ; but tlie functions of the brain were not impaired. In this case, the lungs were certainly the first organ affected, and abiiost instantly afterwards the action of the heart and the functions of the stomach. Instances, moreover, are not infrequent, in which the febrile cause has made its impression, and the patient has been removed from every chance of having that impression renewed ; and it has not, until the end of weeks, and even months, given rise to its specific effects. In this case, is the cerebro-spinal system, or the nerves of organic life, or the blood, affected, and the seat of the latent, or almost la- tent impression ? I have observed the phenomena occurring during this period, in cases of rabies, of small-pox, of measles, of scarlatina, of typhus, and of marsh or periodic fevers ; and in every in- stance they have not indicated any affection of the cerebro-spinal system, but disorder more especially of the functions depending upon the nervous sys- tem of organic life. This period, moreover, is frequently shortened or prolonged ; the symptoms attending it, diminished or aggravated ; and the impending malady even prevented, by means which act more especially upon the latter system. Hence the importance of this inquiry ; for by arriving at just conclusions as to the constituent pait of the economy first affected, and the mode in which it is affected, we are the more enabled to guard against lever, or even to remove the morbid impression after it has been made, and before it has developed itself into open disease. 99. The opinion that the morbific causes even partially operate by first 'inducing changes in the blood, cannot be reconciled with the arguments already stated, and with others which may be offered, although there are circumstances which seem to favour it, the most forcible of which is the piopagation of certain diseases by means of a virus, and the long period a virus or morbific miasm often takes to incubate or produce its full effects. But if we look closely into these very circumstances, we shall find that they are not so conclusive of the opinion they are ad- duced to support as is supposed ; for in the case of an inoculated virus — the most favour- able to the doctiine of primary contamination of the blood, — the consequent infection will be hastened by whatever depresses, and retarded by whatever exalts without exhausting, organic nervous power ; it will be accelerated by the usual concurring and determining causes, as a close, foul, moist air, by cold, by excesses of any kind, and by despondency ; and it will be re- tarded or even prevented by a dry and pure air, by the use of tonics, or what communicates power and increases vital resistance to the in- vasion of a noxious cause. The phenomena, also, observed between the application of the cause — whether a contagious virus, an infec- tious miasm, or an emanation from the soil — and the explosion of the malady, however pro- longed the intervening period may be, cannot be referred to any alteration of the circulating fluids, that may not be shown to be entirely dependent simply upon the existing state of organic nervous or vital power. In rabies, in which the longest formative or incubating stages is observed, symp- toms referrible to the organic nervous system are the first to appear, and the functions depending upon this system are those which especially lau- 917 guish during this period. The same is observed in agues, and in the specific infectious maladies. I5ut even granting that a portion of the animal miasms passes into the blood, and vitiates it, the morbid impression is not the less made by them on the nerves of the organ, and not the less un- productive of the principal part of the phenom.ena more immediately supervening. But this topic is more fully illustrated in the article Infection. loo. In order to show what appears to be the common procession of phenomena consequent upon the impression of the exciting causes, I shall presume that a person in health, with no particular organ especially predisposed to disease, is exposed either to infection by the effluvium from a patient in typhus, or to the operation of marsh exhalations. In these cases the exciting causes, floating in the air, are received into the lungs, and, if they be concentrated or enercetic, they slightly, although they may sensibly, affect the organ of smell in their passage. But their chief action is exerted ujion the nerves of the lungs themselves. It may even be admitted that they also partially affect the blood during the digestion of the air which is their vehicle by the lungs : of this, however, we have no satis- factory proof; and as their direct operation on the nervous influence of this organ is sufficient to produce all the phenomena, it is unnecessary to assign an additional agency to explain them. The morbid impression having been thus principally made in this quarter, it is necessarily extended to those organs which are chiefly sup- plied with the same system of ner\es; and thus the lungs, the heart, and blood-vessels, the digestive organs, and the secreting and assimilating func- tions, almost immediately experience the eflfects. As respects the lungs, their vital resiliency is somewhat impaired ; hence the frequent and forced inspirations ; and the changes efl^ected by the air upon the blood, which, although chemi- cal, are partly also vital or influenced by the organic nervous power of the organ, are more or less impeded. This latter fact I endeavoured to put to the test of experiment. In a paper written at the commencement of 1815, 1 had endeavoured to prove that many of the phenomena of fever were referrible to diminution of the changes pro- duced in the blood by respiration ; and in 1817, when engaged in ascertaining the alterations efl^ected in the respired air, under various circum- stances, I found, in two cases of ague and in one case of remittent, just before the cold stage of the former, and near the first accession of the latter, that the changes in the resnired air were diminished from one fourth to one third their usual amount. These expeiiments were too few, and not sufliciently varied, but they serve to illustrate the subject. 101. The efl^'ect, then, of the morbid impression on the organic nervous influence of the lungs be- ing to diminish the changes caused by respiration on jthe blood, and to render the pulmonary circu- lation more languid, one source of the alterations observed in this fluid in the early stages of fever is made manifest. These alterations, at this period, seldom extend beyond a darker or more venous appearance of the blood than usual, the crassamentum being often soft and imperfectly separated from the serum. Almost contempo- raneously with the effect upon the lungs, the 3 N 3 918 FEVER — action of the heart and the tone 'of the vascular system generally, become diminished. Hence the increasing languor of the circulation, the in- ternal congestions, and the deficient secretion and excretion ; the=e last, however, depending as much upon the state of organic nervous in- fluence as upon the circulation in the secreting organs. The congestions of the large vessels, and the changes in thequantityand quality of the blood, consequent upon deficient secretion and excretion of its watery and noxious constituents, having reached a certain pitch, bring about vascular re- action, if the organic nervous or vital iufluence be not too far reduced, or otherwise altered, by the exciting causes ; but when the morbid im- pression has been very intense, and the more immediate changes very great, reaction either takes place imperfectly, or does not supervene at all in extreme cases, vital power being insuffi- cient to develop increased vascular action. Such appears to be so far the progress of the pheno- mena, as respects the organic functions. 'Jlie cerebro-spinal manifestations are also early af- fected— in a slight and passing manner by the impression made by the noxious effluvia on the nerves of smell ; but much more seriously by the influence exerted by the organic nervous system upon the brain and spinal cord, or ex- tended from the former to the latter, and conse- cutively by the changes in the states of vascular action and of the blood. 102. F. Consecutive Pathological States. — AVhen reaction thus supervenes upon either of the spe- cific causes mentioned above (§ 100.), it may be variously modified according to the association of various grades of increased vascular action and of diminished or otherwise altered nervous or vital power, and to the local determinations or complications attending it. When, in conse- quence of the nature and intensity of the causes, relatively to organic nervous energy, the former do not depress the latter beyond the power of reaction, whereby the morbid impression is ef- faced, and the effects upon the different organs and on the blood are removed, the more sthenic forms of fever take place, vascular action is high, and nervous or vital power not greatly impaired. But when the nature and intensity of tlie causes are such, in relation to vital power, as greatly to depress or otherwise change it, the more adynamic forms are produced, and vascular reaction is much less energetic, the depressed state of vital power being a prominent and increasing feature through- out the disease. In some of the latter forms, vascular action becomes either excessive or tu- multuous relatively to the state of nervous or vital power, owing to the effects produced by the secondary changes in the blood, upon the heart and blood-vessels, and on the organic nerv- ous system, and rapidly exhausts itself, or passes into disorganisation ; and in others reaction does not supervene, the tone of the vessels being pro- gressively diminished, and the blood with the soft solids more and more changed. Hence re- sult, in the last stages, discolouration, softness, flaccidity, lessened vital cohesion, and infiltration of membranous and parenchymatous tissues, with effusions of fluids from mucous and serous surfaces. 103. G. Local determinations and complicatio72S may attend fever from an early period, or appear Pathology or. at any time during its course, or even at its de- cline ; owing to the circumstances influencing its terminations (§ 47.), but especially to the following: — 1st, To pre-existing functional or structural lesion of an organ or tissue; — 2d. To the predisposing and concurring causes; — 3d. To the nature and intensity of exciting and spe- cific causes ; — 4lh. To the character of the epidemic ; — 5th. To various determining or con- secutive influences; • — • 6th. To the efl^ects of re- action upon certain viscera; — 7th. To interrupted excretion; — 8th. To the morbid states of the circulating fluids exciting disease, quickly passing into disorganisation; — and, 9th. To injudicious treatment. 104. a. Pre-eiisting disease of a part, especially when seated in the alimentary canal, brain, or lungs, aggravates fever and gives it a modified form, A loaded or congested state of the liver, also, in respect either of its vascular system or of its biliary ducts, often disposes to fevers, and imparts to them a bilious or gastric character. Various lesions observed after fever, and some- liiTies imputed to it, have existed previously, or have been merely aggravated by it, particularly those seen in the pleura and in the liver, and some of those found within the cranium. 105. b. The predisposition arising from the use of unwholesome water and food especially favour the low types of the disease, with lesions of the mucous follicles and membrane, which can hardly be said to be inflammatory, and con- tamination of the blood ; that from excessive men- tal exertion or anxiety, increased afl^ection of the brain ; and that from gross living and intem- perance, complications with disease of the liver, stomach, and bowels. The cancurring deter- mining, and consecutive agencies, not merely de- velop the action of specific causes, as shown in the article Disease (§ 61.), but they also com- plicate the fever produced. Thus cold both aids the operation of other causes, and occasions increased pulmonary disorder ; and the influences of season, weather, climate, confined air, &c. cause aggravated aflTections of the intestines, or of the liver, of the brain, of the respiratory pas- sages, or of the circulating fluids. 106. c. The nature and intensity of the chief or specif c causes often determine the complication. — Malaria most frequently causes congestion of the liver and spleen ; the emanations from persons afl^ected by low fevers, aggravated affections of the digestive canal, of the brain, atid often also of the lungs; and the exanthematous eflluvia, their specific eruptions, and disease of the digestive mucous surface and pulmonary organs; these local aggravations of the malady appearing chiefly where the causes have acted most intensely rela- tively to the state of vital power and predisposi- tion, or have been aided by concurring influ- ences. The complications in fevers produced by the former of these causes are the least severe, and those arising from infection the most dangerous, owing to tiie slates of vascular action, of vital power, and of the circulating fluids generally ac- companying them ; the first of these states being often excessive, or of an unfavourable kind ; tlie second depressed or otherwise altered ; and the third more or less changed from its natural con- dition, or even contaminated. 107. d. The complications are diflcrcnt in re- FEVER — Pathology of. 919 spect of their seat, nature, ami severity, and the states of local action, of vital power, and of the circulating and secreted fluids, in different epi- demics, often independently of season, climate, weather, and locaHty, although these have much influence in many that are limited in their dif- fusion. Consequently, the complications are much more prone to pass into disorganisation in one epidemic than in another; but those occur- ring in the epidemics of warm countries are more uniform in their character and seat than those observed in the epidemics of temperate countries. It is chiefly upon a close observation of all the circumstances connected with their complica- tions, that a successful treatment of epidemic fevers depends. 108. e. Reaction or vascular excitement occa- sions local determinations and complications, ■which generally present more or less of an in- flammatory character; the brain, alimentary canal, the liver, or lungs, most frequently being the seat of the predominant affection, and evinc- ing the effects of it after death. If, however, vascular action far exceed vital power, the super- induced local affection seldom presents many of the truly inflammatory characters, as shown above (§ 50.), and it often rapidly passes into dis- organisation, or gives rise to sanguineous, serous or sanious effusions, but very rarely to the eflTu- sion of lymph or of albuminous fluids, unless in the most sthenic state of the disease. 109. f. Interrupted excretion induces compli- cations frequently at far advanced periods of fever, especially implicating the bowels, the liver, and brain. They are generally of a most severe, although often insidious form, owing to their association with depressed or exhausted states of the constitutional powers ; these states having been more or less concerned in causing the im- perfect excretions, and with alterations in the blood, which the latter has contributed to pro- duce ; and they often quickly pass into struc- tural lesions, not so much from tlie inflammatory or increased vascular action which attends them, as from the septic and contaminating effects of the retained excrementitial matters upon the tissues, and from their depressing influence on the nerves of the part. 110. g. Morbid states of the hlood induce the most dangerous complications, and, like the pre- ceding, most frequently at advanced periods of the disease, the mucous membranes, Peyer's and Brunner's glands, the brain, and the lungs, be- ing the parts chiefly affected. As the changes in the blood are chiefly caused and attended by a depressed or altered state of organic nervous power, the local affections caused by them, whe- ther they be characterised by increased vascular action or by simple congestion, generally pass quickly into structural lesions, especially of the mucous membranes, or give rise to effusions of a sanguineous, foul, dark, or sanious fluid, either from these membranes or from serous surfaces. 111. h. Injudicious rpgimen and treatment dixe, much more frequent causes of aggravated local lesions in fever than is supposed. External heat or cold inappropriately emj.loyed ; the improper use of stimulants and tonics ; the neglect of suit- able evacuations early in the disease ; and the use of acrid or irritating purgatives; frequently occasion or heighten predominant affections of the intestinal mucous surface, of the liver, and of the brain. Excessive doses, or the prolonged and inappropriate exhibition, of antimonials, espe- cially tartar emetic, in the manner often resorted to in Italy, have evidently caused serious irri- tation and ulceration of the mucous membrane of the stomach and bowels, without producing either sickness or vomiting after its first operation in this way. The too early and free use of bark, or of quinine, in periodic fevers, or before morbid secretions have been evacuated, and congestions of the liver removed, has often induced serious inflammation and structural change in the liver. 112. ). It must be evident from the foregoing that the predominant affections or complications of fever must vary, not merely in their seat, but also in their intimate nature, in its different types and forms; the low and adynamic states being at- tended by those which are the least inflamma- tory, the most imperfectly indicated by the symptoms, and the most prone to pass quickly into disorganisation ; this event, indeed, often be- ing the first indication of their existence. It re- quires, tlierefore, a close scrutiny of the various functions to detect them, especially when they are seated in the intestinal canal and lungs. Al- though the complications in the former of these situations may be indicated by tenderness on deep pressure, by distension or fulness of the abdomen, and by the appearance of the evacu- ations, yet they may be present, nevertheless, without any such signs, even the stools evincing no very material disorder. When the stools are copious without any amendment, and particu- larly if they continue so, the pulse being weak, soft, and very frequent, and the skin harsh, lurid, or discoloured, we should dread the presence of disease of the digestive mucous surface and follicular glands ; and if these symptoms be attended by flatulent distension of the abdomen, and by blood in the evacuations, this complication most probably exists. The com- plication with disease of the substance if the liver is often equally obscure in the adynamic varieties, more especially when the brain is much affected ; for, although fulness and tenderness in the region of the organ, or a rising of this viscus high into the right thorax, as detected upon percussion, may sometimes be present, yet serious lesions may su- pervene without any of these indications being observed. 113. k. ]Most serious disease and even disor- ganisation may affect the lungs, particularly in the low forms of fever, without cough or pain being complained of. This organ, therefore, should receive due attention, and its state be inquired into by percussion and auscultation, which will very often detect bronchial affection, and be- patisation or infiltration of it, although these lesions may be either imperfectly or not at all indicated by the usual symptoms. When the pulse is very soft and weak ; the lips, tongue, and skin qre dark, lurid, or livid; the delirium is low or muttering; and the respiration is hurried and laboured ; the changes effected on the blood in the lungs are evidently impeded, and the cause exists either in depressed nervous influence, or in more palpable disease of the respiratory ap- paratus, or even in both ; for the latter is often the indirect consequence of the former. In the low forms of kver, the changes that supervene 3 N 4 920 in the bronchial surface, or in the substance of the lungs, as well as those that take place in the alimentary canal, possess but little of the truly infiammatory character, excepting capiirary in- ^ jeetion, sometimes with infiltration of a sangui- neous serum into the adjoining tissues, or with efTusion of a similar fluid from the injected sur- faces. ■ 114. I. Tredominant cerebral affection l6ss fre- quently amounts to actual disease, or passes into disorganisation, in fevers, than has been very ge- nerally supposed; the disorder most commonly, existing in this quarter, in low Tevers especially, being more functional than structural — depending more upon the state of organic nervojjs influence in the organ, than uppn inflammatory or other lesions. The effusions and cqngestions observed in fatal cases, are probably in great measure yost mortem changes ; and, even granting their exist- ence during life, they are often insufficient to ac- count for the symptoms referrible to this part. Whatever the alterations existing within the cra- nium may be, there can be no doubt that, when the affection of the brain is very predominant, lesions in other situations are very seldom complained of, and with difficulty detected. The above complica- tions, as well as others casually alluded to, will be more fully elucidated, vv-hen the particular species of fever come under consideration. 115. m. It is evident, from what has been stated respecting the pathology of fever, that a most scrupulous and minute inquiry into the slates of organic nervous or vital power, evinced in all the functions, and of vascular action and tone — into the evidence of local congestions, or predominant visceral affection — into the existing functions and lesions of individual organs — and into the conditions and appearances of the secreted and excreted fluids, of the blood, and of the solids — should furnish the basis of our curative inten- tions, and direct the choice of individual means. Norought it to be overlooked, that the mutability of fever is so remarkable, that the pathological states actually existing at the time of investigation, may change their characters and even their nature, in an hour or two afterwards ; that each successive stage is very different in the grouping of the phe- nomena, and in the conditions of vascular action and vital power, from that which preceded it ; that serious complications or predominant affec- tions may suddenly arise and become almost irremediable in a very short time ; and, conse- quently, that the treatment devised should be promptly administered ; and prescribed either with reference to the usual successions of morbid states, or merely for a period, in which no very important change is likely to take place. 116. X. Gi'.Ni.iiAL Tkf.atmext. — The treat- ment of fevers is prophiilaclic and curative. The former has been little attended to by writers, and but imperfectly understood ; and the latter has too frequently been directed, v^illiout due attention to pathological states, and often with an imperfect knowledge of their seat and nature, liefore a general view of the curative treatment of fevers is exhibited, a few remarks on their prevention will be necessary. 117. i. I'noiMivi.ACTic INIkans. — The pre- vention of fever should have reference — 1st, to the avoidance of its causes, and the seclusion of those fiulfering infectious forms of it; — 2dly, to FEVER— General Treatment, means which may destroy or dilute its more specific agents, and counteract their operation ; — 3dly, to measures calculated to fortify the frame against the impression made by them; — 4thly, to means which may prevent the development ol disease after the impression has been made ; — and, Sthly, to a treatment calculated to arrest its furtiier progress at a period when arrest is still within the reach of art. The^Vst, second, and third of these are so fully insisted upon in the articles Endemic Influence (§20.) and Infection, that little further -need here be advanced respecting them ; the remarks offered under these heads having especial reference to periodic and infectious fevers respectively. 118. A. Measures calculated to fortify the frame against the impression of the exciting catises often succeed in preventing Jficr, especially when these causes are of casual occurrence and of short continuance, or when their presence is known or suspected, and their nature tolerably understood. 15ut in epidemics, particularly those which are pestilential, where these conditions do not obtain, means of this description generally fail, their causes being more generally diffused, and in almost continual operation. The measures resorted to, in order to resist the causes of fevers, should have reference to the habits and circum- stances of the individual, to his constitutional powers, and his habit of body. All the predis- posing causes should be carefully avoided. Vas- cular plethora ought therefore to be reduced, and vital power and resistance promoted where it is lowered. High irritability, vascular fulness, and rigidity of fibre, seem to predispose to several pestilential epidemics, especially to yellow fever ; and, although these states will often resist for a long time the operation of marsh exhalations, particularly in temperate countries, yet such is not generally the case as respects persons mi- grating from cold to hot climates ; for they com- monly experience, in consequence of these states, niuch more violent attacks of fever than those who have been seasoned to the country; the fever in them often evincing inordinate excitement and re-action, and consequently assuming characters which have caused it to be confounded with the true or epidemic yellow fever. The most effi- cient resistance to the action of the causes of fever, is afforded by a due performance of all the or- ganic and mental functions. Hence, whatever over-excites or depresses them will be injurious. Confidence, continued mental occupation, and moderate excitement, are especially efficacious in resisting the causes of most fevers. There is a moral courage sometimes possessed by persons, the weakest perhaps in respect of physical power, that enables them to resist infectious and epidemic influences, more successfully than the most robust, who are not thus mentally endowed. 119. 'J"he (piarter in which the most active causes of fever invade the system should not be overlooked, for the casual or temporary operation of infectious eflluvia, when their presence is anti- cipated, may be easily and certainly guarded against by the use of the aromatic spirit of vinegar, or by keeping a small piece of camphor in tlie mouth. When terrestrial emanations are pre- sent, care should be taken not to be exposed to the morning or night air, especially witii an empty stomach, as they arc then most concentrated ; nor to sleep in apartments upon or near to the ground floor, for the body is most susceptible of their in- fluence on these occasions. When such precau- tions cannot be used, a cup of coftee should be taken before going abroad, and a pill with two or three grains of qumine and one or two of camphor at bedtime ; but tliese means are of most benefit in cases of short residence in unhealthy localities, for which occasions I have directed the following pills with success : — No. 220. B Camphora? rasjE 3j. ; QuininiE Sulphatis 3 ss. ; Pilul. Galbaiii Comp. 3j-; Pulv. Capsici gr. xvj,; Balsami Canaiieiisis, q. s. M. Fiant PiUiIae xxxvi., qua- rum capiat duas vel tres hora somni. _^^ 120. The system should not be stimulated by wines or spirits, unless better means are not within reach, and even then these should be used in very moderate quantity, otherwise exhaustion and its attendant predisposition will result from them. The same objection is applicable to cigar smoking ; care ought also to be taken not to in- hale the breath, or the effluvium proceeding from under the bed-clothes, or from the evacuations of persons in continued fevers, whatever means of resistance may be employed ; but more especially with an empty stomach, or in states of debility or exhaustion, should this precaution be observed. During the prevalence of epidemics, of which in- fection is one of the chief elements, or causes of diflfusion, strict seclusion can alone be depended upon. Still, other means should not be neglected. It has been supposed, that external irritation, or the discharge from an issue or seton, will prevent an attack of epidemic or pestilential fever ; and cases have occurred to countenance the opinion, but they are not suflficiently conclusive. Upon the whole, a due regulation of the digestive, the secreting, and the excreting functions; avoidance of all causes of physical and moral depression ; and a proper recourse to the additional means re- commended to prevent InfectiOiV, in that article, are most to be depended upon, 121. B. After the 7norhid impression has been made, the development of fever may often be pre- vented, if the patient no longer remain subjected to the operation of the exciting causes. We have seen that disease is frequently many days in form- ing, the system manifesting slight disorder only during the time (j34.). The object on such occasions should be to enable the frame to main- tain a successful struggle against the impression that has been made, and its more immediate effects. With this view, all the causes enumerated in the article Dise.ase, under the name of deter- mining or consecutive (§ 61.), should be carefully avoided, especially exposure to cold, to wet, and moisture ; the use of cold fluids, and of cold, indigestible substances; excesses of every kind, and the common causes of physical and menial depression ; and the patient ought to remove to a pure, dry, and open air. Tonics ought at the same time to be employed, especially such as de- termine the circulation to the external surface, improve the tone of the digestive organs, and pro- mote the secretions and excretions, particularly those of the bowels and liver. When the actions of the bowels require aid, cold and debilitating aperients should not be prescribed. Warm and stomacliic purgatives or laxatives, or these com- bined with tonics, are the most appropriate. When the impres.-ion has been energetic, and made by FEVER — GENEn.\L Treatment. 921 infectious effluvia, an immediate recourse to stimuli, aromatic spirits, spi especially camphor, ainmoni rits of nitric ffither in tea, See; or, if these be not at hand, to warm wine whey, or brandy and water, will generally prevent any ill effiects. The diet should be regular, moderate, nutritious, and easy of digestion ; the stomach having nothing to do that it cannot perfectly accomplish. If these be tound insufficient, a warm /)«(/(, followed by active friction of the surface; and if reaction have not supervened, icarm diaphoretics may be directed. If the patient still continue to complain of the ■symptoms of the formative stage, an emetic, with aromatic adjuncts (see F.-198. 402.), should be exhibited, and repeatetl until it fully operates; after which the diaphoretics may be repeated, or a moderate dose of- calomel, with five or six grains of camphor, and one or two of opium, may be given, which- should be followed J in a few hours, by an active stomadiic cathartic (F. 181. 216. 266.). These means have been "^eiiiployed by me in se- veral instances during tRe formative stage of fevers, with- perfect success." But in cases where we sus- pect inflammatory irritation to have commenced in the alimentary canal, and during the pre- valence of epidemics characterised by this com- plication, emetics, particularly those containing tartarised antimony and acrid purgatives, should be withheld, and the other means be resorted to, espe- cially the ivarm bath, to which stimulating sub- stances may be added, and frictions of the surface. Internal irritants of the digestive mucous mem- brane should be also abstained from in the form- ative stage of the exanthemata, for in them this membrane is generally irritable and injected ; and it readily becomes inflamed upon the injection of stimulating and acrid matters ; the healthy development of the eruption being thereby pre- vented. It is chiefly in robust constitutions, and after the operation of other causes than infection, that severe shocks, by active emetics or cathartics, are best borne ; whilst the other remedies, especi- ally camphor, calomel, and opium, warm diapho- retics and diluents, tonics with camphor and ammonia, external derivatives, and warm, mild, but efficacious purgatives, are most suitable when the morbid impression has been made by infectious emanations. This treatment may not succeed in arresting the fever, but it will seldom fail of short- ening the premonitory stage, and rendering the subsequent disease more mild or of shorter du- ration ; for it frequently is observed that, when the formative period is allowed to continue, and to develop the series of changes to which it leads when left to itself, the consequent disease assumes a very severe or dangerous form. 122. C. The arrest of fever may be also suc- cessfullij attempted, during the stage of invasion (§ 35.), or up to the commencement of vascular reaction, or excitement; but when once this period has supervened, the fever will run a regular course, although it will often be much shortened by treat- merit. Fevers, I believe, caused by infection are very rarely arrested after reaction is established. The means just advised for the formative stage may likewise be tried in that of invasion ; but much discrimination is requisite in the choice of means. Camphor, ammonia, and warm diapho- retics and diluents, sometimes with opium, when the head is not affected ; the warm bath, the vapour or heated air bath, and frictions subse- 922 FEVER — Curative Treatmekt. quently ; are the most generally appropriate. In robust persons, and where terrestrial emanations have been tiie chief cause, a warm emetic (F. 198. 402.) and active stomacliic purgatives (F. 181. 216. 266.) may also be exhibited, but they should more rarely be ventured upon in other circum- stances, for the reasons just assigned : the recipes now referred to, however, will not be attended ■with the lea>t risk. ^V hen there is tenderness at the epigastrium, with other signs of gastric irri- tation and depression of nervous power, instead of an emetic or cathartic, a large sinapism, or a warm turpentine epithem, should be placed upon this region, and over a great part of the abdomen ; or, in other cases, upon the insides of the thighs; but neither of these ought to be resorted to if re- action have supervened, nor continued after it has come on. 123. ii. Curative Treatment. — The indi- cations of cure in fevers are — 1st, to remove the exciting, and all other causes likely to exert an unfavourable influence on the patient, and to place him in a pure, dry, and temperate air ; — 2dly, to moderate vascular action when it be- comes excessive ; and to impart tone and energy to the vascular system, in states of depression or exhaustion ; — 3dly, to support vital power, especially when associated with imperfect re- action, or when resulting from depressed or exhausted organic nervous influence and vascular action ; — and, 4thly, to remove local obstructions, congestions, determinations of blood, or predo- minant states of action, or other disease, in par- ticular viscera. This last may be termed the symptomic treatment of fever, the others the vital ; inasmuch as they have especial reference to the states of organic nervous power, and of vascular action. 124. In endeavouring to fulfil these indications, there are various circumstances to be kept in view, viz. — a. The previous health, age, and condition of the patient, in relation to the existing states of vascular action and power, and of individual functions. — b. The nature, intensity, and com- binations of the causes of the disease, and the imfavourable influences which still continue to operate, and cannot be removed. — c. The man- ner in which diflferent pathological states modify the operation of many of the most active medi- cines.— (/. As precise a recognition as the symp- toms will afTord, of the ever-changing conditions of vascular action, of nervous power, and of exhalation, secretion, and excretion during the course of tiie malady ; and strict appropriation of the means of cure, not merely as respects tiieir operation in health — their physiological action ; but as regards their influence on disease, espe- cially existing states of it — their therapeutical cflects. Tlie importance, and, indeed, tiie necessity, of attending to these circumstances in the treat- ment of fevers, is well illustrated by the action of antimonials, in their various forms and states. -The potassio-lartrate of antimony is one of the medicines most generally employed on theContinent, particu- larly in Italy, as aciinir((-s(i;Hi(/fl /If, in what is called, by the modern Italian school, the stimnlant-dia- tliesis of fever ; and it is an excellent remedy in several forms of the disease, during the stages of excitement, in which it may be given in very large doses. 15ut the tolerance of such doses depends mainly upon the states of vascular excitement and of vital power, and on the repetitions of the medi- cine ; for they may be remarkably injurious in states of low action, in the very young or in the aged, in persons previously ill fed, in fevers attended with predominant aflPection of the digestive mucous surface, especially when of a low type and caused by infection ; it often occasioning in these, espe- cially when taken in very large quantities, serious lesion of the mucous membrane of the stomach and bowels. Keeping, theiefore, these indications and circumstances in view, the treatment of fever must be directed according to its type, its par- ticular form, its varying conditions and compli- cations, and its existing stage or period, and with due reference to the measures which have already been adopted. 125. A. The patient should he removed from the exciting, concurring, and consecutive causes, and be placed in as pure and dry an atmosphere as possible, in a large well-ventilated apartment ; but out of the way of currents of air, and in an equable and moderate temperature. When an elevated situation or chamber can be selected, the advantage should not be neglected, particu- larly in large towns. The earlier in the disease that this intention can be fulfilled the better ; as the more completely the functions of respiration are performed, especially as to the changes ef- fected by it on the blood, the less risk there will be of future vital exhaustion, and of contamination of the circulating and secreted fluids. Nor should it be overlooked that, although the pulmonary functions are imperfectly performed during the formative and invading stages, they are more or less completely restored as reaction is developed, and tiiey often assume their accustomed activity, unless the bronchial surface, or substance of the lungs, have been inordinately afl^ected by conges- tion or determination of blood during the early stages ; the subsequent activity of this organ con- tributing to restore the impaired purity of the cir- culating fluids, and to prevent or counteract much of the vitiation they afterwards would experience from an impeded elimination of hurtful matters, particularly in circumstances unfavourable to the due performance of the several depurating func- tions, of which the lungs are themselves one of the most important, and a dry, pure and temperate air, one of the most effective agents. 126. B. The moderation of excessive vascular action is obviously necessary ; but the particular means by which it should be effected, and the grades of action that should be interfered with, are not so evident. These are points which must not be determined by tiieory, but inferred from extensive experience and observation. If the patient was previously in good health ; if the causes were not remarkably intense, or are im- perfectly known ; if the symptoms do not indi- cate great excess of action, or serious irritation of any paiticular system, or determination to any vis- cus, or congestion ; then little need be attempted, and certainly no active means should be resorted to, especially among the poor, and persons of a spare habit of body. In the licli and well fed, or those wiio arc more plethoric, simple saline refrigerants and diajihoretics, mild aperients, and cooling diluents and diuretics, may be employed, rather with reference to consequent changes, than as respects the existing state of disorder — to the prevention of future lesion, the removal of ob- FEVER — Curative TnEATMEvr structicns, and the preparation of the organs for salutary or critical changes. These means exert a solvent or relaxing operation upon the capillary vessels; they promote secretion, soothe vascular irritation, equalise the circulation, and facilitate the excreting actions. 127. When vascular action rises ahovo the state just mentioned, it should be considered excessive, and more energetic remedies employed. Inordinate action varies remarkably in grade, and somewhat in kind, with the causes which induce it, with the consequent state of organic nervous power, and with the constitution, habit of body, and age of the patient, from that just noticed, to the vehement forms, which are rapidly followed by exhaustion, by a dissolved or other- wise altered condition of the blood, by lesion of capillary action and tone, and by structural change, especially in mucous surfaces and paren- chymatous viscera. The most intense forms of reaction, and consequently the most rapid in their course, often have nearly passed off before the patient is brought for treatment, the effects of morbid action being then only observed, and the exact nature of the disease frequently mistaken. But in proportion as the action of the heart and the pulse are strong, frequent, full, and hard; the countenance and surface injected, turgescent, and animated ; the eyes bright and prominent ; re- spiration full, deep, and laboured ; animal heat increased, or acrid and burning ; the excretions diminished or suppressed; the animal functions unbroken, consistent, and free ; the course of the disease, whether epidemic or sporadic, acute and rapid, and the type perfectly continued ; so much the more active and immediate should be the means employed to lower the excited action on which these depend, and to prevent its dan- gerous tendency. — These means have been usually named from the morbid states they are employed in removing, as antiphloghtic, anti- sthenic, contra-stimulant, refrigerant, lowering, eiacuant, S)C., and are very numerous; although the remedies which are appropriate to particular forms of excessive action are much more limited. 128. a. Vascular depletions were resorted to by the ancients, generally with the view of di- minishing inordinate action, or of diverting an im- petuous motion of the fluids from vital organs; and observation taught them, that, when pushed far, with an intention of curing or arresting the progress of fever, they were frequently injurious. A nearly similar practice was adopted by the best Avriters, from Hippocrates to Sydenham, who both illustrated it. Sydenham explicitly states, that bleeding is required to repress the tumultu- ous or irregular motions of nature, and remove the flux of blood from an important organ or part, to which the febrile impulse has determined it ; and the ideas held respecting the practice, among , 923 which broke out amongst his followers to South America was given by Dr. Franklin to Dr. Rush, and was a principal cause of the change which took place in the practice of the latter during the epidemic fever of North America in 1797. Dover was a Buccaneer leader, and no mean physician, and practised both professions much in the same spirit. He ordered bleeding to a very great extent at the commencement of the disease, — a treatment successfully adopted in our own times, under similar circumstances ; and which I have resorted to in the ardent fever occurring within the tropics. In a case, wherein I directed bloodletting before reaction had supervened, the loss of three or four ounces caused profound and prolonged syncope ; yet, within four hours, when reaction had come on, fifty ounces were taken before any effect was produced upon the pulse ; — and before the sun of the same day had gone down, forty more were abstracted at one time, — in all, ninety-four ounces within twelve hours. But the patients for whom this practice has been prescribed with success have been young, robust, or plethoric, and removed from the continued in- fluence of the causes which produced the disease. 129. a. The extent to which bloodletting should be employed, and the good effects from it, will depend on the particular form and com- plication the disease assumes, on circumstances peculiar to the patient, on the character of the epidemic, and on the period at which it is re- sorted to. It may be injurious, from being car- ried too far, or not far enough, — and from being resorted to before reaction has supervened, or when the reaction is about to pass into exhaustion, or in cases in which it is not indicated. Its effects will depend upon the manner in which these and other circumstances are weighed by the practitioner; but it should not be overlooked, that it depresses the vital energies much more remarkably in fever than in idiopathic inflamma- tions ; and, when inappropriately or too freely practised, it prevents or retards salutary evacua- tions and crises ; and either disposes to unfa- vourable changes, or renders convalescence diffi- cult and prolonged. Hildenbrand very justly remarks that, even in cases where the propriety of the practice is undoubted, a moderate quantity only should be taken away at one time, and the eflects upon the disease, as well as the appearance of the blood, should be carefully observed, before its repetition be directed. This precaution is especially requisite at the commencement of epi- demics, if depletion be employed late in the dis- ease, and if vascular action be tumultuous, or much exceed nervous or vital power. 130. Large bloodlettings have been directed with the view of arresting or shortening the fever; and, when the person has been robust, the con- stitution sound, the cause not very intense, and judicious writers of recent times, nearly agree ! its effects not very violent, the practice has occa- with the above, although they differ as to the | sionally so far succeeded as to subdue the morbid employment of it in certain types and forms of ! excitement down to that grade which is necessary fever. When the symptoms just stated (§ 127.) | to the restoration of the secreting and excreting are present, bloodletting should be promptly and j functions, and the production of a salutary crisis, decidedly employed ; and when tiie patient is re- ; We sometimes observe a large or full depletion moved into a pure air, beyond the influence of 1 in a few hours afterwards followed by a general the causes, and is robust, plethoric, and young, • perspiration, and copious alvine evacuations. But it may often be carried to a great extent. This this result should not be confidently calculated appears to have been the case with Dover's pa- upon, even in the class of patients just mentioned, tients. His account of the treatment of the fever and least of all in fevers arising from infection 924 and mental anxiety, or during epidemics, how- ever early in the stage of reaction it may be re- sorted to. JNIuch discrimination is necessary, even in cases where the practice appears to be indicated, not to run a risk of mischief by having recourse to it. 131. When, in the progress of fevers, but more especially at their commencem^ent, signs of local determination or of predominant vascular action appear in the head, lungs, or abdominal viscera, depletions, both local and general, are most requisite. If, however, these affections come on in advanced periods of the fever, although deple- tion to some extent is required, the existing states of vital power and action, and even of the blood itself, often forbid it to be practised nearly to the amount generally required in idiopathic inflam- mations,— unfavourable terminations or even gan- grene rapidly supervening, owing to these states, upon a too free recourse to it ; for it is not so much from excessive action, as from diminished power, and alterations of the circulating fluids, that these unfavourable results occur in the progress of fevers. Ttie earlier, however, the predominant local disease or complications appear, the more energetically may bloodletting be employed. 132. (3. The chruinstances more especially requiring recourse to vascular depletions may be summed up as follows : — (n) Inordinate excite- ment, or irritation with rigidity of fibre, and gene- ral increase of the animal heat; — (6) When the patient is robust, plethoric, or young; the sanguiferous system being so surchaiged as to prevent the free exercise of the functions ; — (c) When the general reaction of the vascular sys- tem is such as to endanger vital parts, or too strong to allow a salutary or critical change, or so vehe- ment or tumultuous as quickly to exhaust vital power ; — and, (rf) When the blood is determined to, or vascular action is inordinately increased in, an important organ. — In these conditions blood- letting is employed, with the following intentions : — a. To remove the excitement and irritation, and relax the exhaling and secreting surfaces and organs; — B. To diminish the load which oppresses the vascular system, congests it, or overpowers the organic nervous influence that actuates it ; — ■y. To reduce the excessive reaction, and thereby to guard important viscera, to prevent consequent exhaustion, and to favour the supervention of salutary evacuations ; — J. To remove or divert the increased impulse or action from important organs. 133. y. Ihcre are certain considerations and symptoms contra-indicating bloodletting, that should not be overlooked. Some of these I have •seen but too often neglected, even by old practi- tioners ; and others so remarkably misinterpreted by them, as to iiave been their only reasons for having recourse to depletion, although actually the strong- est indications against it. — A very fre(|uent, soft, and open pulse seldom or never admits of deple- tion, for in such cases the tone of tiie vessels is insufficient to accommodate tiiem to a diminution of their contents ; consequently, remarkable sink- ing and depression, with increased rapidity of the circulation, &c., supervene. Tiie pulse may be also open, soft, expansive, and tumultuous, indi- cating excessive action beyond vital power, as in certain forms of adynamic and malignant fevers attended by contamination of the circulating FEVER — Curative Treatment. fluid. In this state, the loss of even a very few ounces of blood will produce bad effects. Vas- cular depletion is seldom well borne in fever, when the pulse ranges so high as 110, and still more rarely if it reach 115 or 120, in adults. Irritable females, however, and those in the puer- peral state, offer exceptions to this. 134. Great prostration of strength and of vital power ; the supine posture ; languor of the eyes ; paleness or collapse of countenance ; a lurid com- plexion ; a dark or flabby state of the tongue, with indentations of the teeth on its edges, or dark mucous sordes on the tongue, gums, and teeth ; great sadness and depression of spirits ; low deli- rium ; tremblings of the hands, and especially of the lower jaw ; a feeble, small, and weak, or an open, compressible, and undulating pulse; a frequent and hurried respiration ; incontinence of fseces or urine ; coldness of the extremities, or of the ears or nose ; coldness or rawness of the expired air ; softness and flabbiness of the soft solids; and a dirty, muddy, lurid, or discoloured appearance of the integuments; are the strongest indications against any kind of depletion, and in all circumstances of fever. 135. In addition to these, the noxious nature of the exciting causes ; their concentration, and their intense operation, as in the case of infectious effluvia ; imperfect ventilation, &c. ; the cha- racter of certain epidemics ; the continued in- fluence of the contaminated air, or of the infec- tious emanations that caused the fever ; previous depression and insuflicient nourishment ; the pre- sentiment of an unfavourable issue, or mental distress and anxiety ; the circumstance of the patient being treated in the midst of the malaria, or marshy exhalations, that caused the disease, or in an hospital, camp, house, or low street, in which infectious (ever is prevalent ; all militate against bloodletting, or indicate a necessity of caution in respect of it, according to the form which the disease assumes. — Vascular depletion also is not so well borne by persons living on a poor watery diet; nor by the studious and ex- hausted ; nor by the fat, bloated, cachectic, and intemperate ; nor by residenters in low marshy dis- tricts ; nor by liiose confined in close factories, or living in close or low apartments and streets ; nor by persons passed fifty ; as by those differently circumstanced. But the various species of fever furnish peculiar indications in favour of or against bloodletting that will be considered in their proper places. 1 36. S'. Of the repetition of bloodletting. — Pi'e- viously to determining upon a second depletion, the effects both immediately and more remotely consefjuent upon the first, and the character of the disease, should be most carefully studied. It may happen that the first bleeding, although small, has produced fainting, followed by so strong re- action as to render a second or even a third full or moderate bleeding indispensable. This is chiefly observed when the first has been practised too early, or before the stage of reaction has been fully developed. If the fever is complicated, and tiie local affection presents much of the in- flammatory character; if the patient has been relieved by the former bleeding ; if the pulse remains good ; if reaction, or determination to an importiint organ be diminished, the symptoms which indicated the fiist depiction still persisting fEVER— Curative TnEATMENT. 925 to a certain degree ; we may proceed to a second, but always with circumspection. If, on the con- trary, the pulse becomes weak, and the strength sinks, we never ought to repeat the bleeding. In all cases, the piiysician should attentively observe the pulse during the flow of blood, in order in- stantly to assure himself of the propriety of deple- tion : for if it become feeble and irregular, and the patient at tiie same time more distressed, the evacuation should be immediately stopped. The blood drawn in the first instance sometimes fur- nishes indications for or against the repetition of bloodletting; but such indications siiould seldom be acted upon alone. The inflammatory coat, and cupping of the coagulum, are favoured by cold, dry weather, by the puerperal states, by the rheumatic diathesis, and by the blood being taken in a full stream, and in a deep and narrow vessel. — But this condition, as well as a very loose or dissolved coagulum, or imperfect separ- ation of it from the serum, and the other states of the fluid described in the article Blood (§78. et seg.), should be duly considered, in connection witii the other phenomena, before they can be made the basis of curative indications. Van Rotter- dam justly states, that when the crust consists of a delicate bluish membrane, covering a greenish 139. b. Refrigera)its, internal and' external, are of great service in moderating vascular ex- citement; and some of them produce this efTect more than others, without lowering vital power. — a. The choice of internal refrigerants siiould depend upon the form fever assumes, and upon their especial action. In the early part, and more sthenic forms of excitement, sedative refrigerants should be selected, as the nitrates of potash or soda — the various neutral salts, the mineral, and vegetable acids. Several of these may be advan- tageously conjoined, as a solution of the sulphate of magnesia, with that of the acetate of ammo- nia ; and other substances, also tending to pro- mote the exhalations and secretions, may be added. In the far advanced stage of excitement, and in its more adynamic or low states, refrigerants which are more restorative and antiseptic — a.?, camphor in small doses, ihe hifdrochlorate and acetate of am- monia, the spirit of nitric either, and the various atherial preparations, particularly citioric aether — are upon the wiiole to be preferred ; and may be conjoined w^ith nuinerous other substances, ac- cording to existing morbid conditions. The refri- gerant effect of several of these is only relative to the state of action at the time, but it is not the less beneficial. Thus, in the low excitement gelatinous matter, the crassamentum being livid, characterising adynamic fevers, or when vas- soft, and floating in a thick and greenish serum, a second bleeding will prove most mischievous ; — and I may add, that least of all should depletion be repeated, in any mode, if the colouring matter be precipitated to tlie bottom of the weak crassamen- tum, and of a blackish or purplish colour. 137. £. Local bloodletting is required chiefly in very young patients, or after general depletion, or in local determinations and complications, or in circumstances that render the propriety of bloodletting doubtful. It is most serviceable when the head is affected, and then either cup- ping or leeches may be employed, but preferably the former, when a quantity exceeding six ounces is to be taken away ; and either mode may also be adopted when tlie viscera in the large cavities are affected. If leeches be employed late in fever, particularly in its low and complicated forms, care should be paid to the bleeding after their removal, as it is apt to continue, and is arrested with difficulty. Dry cupping is some- times useful in states of internal congestion, when the detraction of blood can hardly be risked. 138. ^. The question has been often agitated. How late in fever sliould bloodletting be prac- tised? but it evidently cannot be answered by any absolute rule, or without reference to the ensemble of existing phenomena. In the cerebral and pulmonary complications, as well as in others in some cases, bloodletting, in one mode or other, may be employed until an advanced or critical period. But reaction having come on, and the indications for it being evident, the earlier in the disease it is resorted to the better. In the stage of crises, both vascular depletion and all perturbating means should be avoided. The in- dications already noticed respecting this remedy will assist the practitioner as to both the latest time of resorting to it, and the repetition of it ; but in these matters, as in many besides, he must be guided chiefly by his pathological knowledge, and powers of practical observation and discrimination. cular action exceeds vital power, and the heat of surface is of a morbid kind, both the vascular action and the unnatural heat are best reduced by the more restorative refrigerants, as by cam- phor, the hydro-chlorate of ammonia, chloric aither, &c., all which may be given in conjunc- tion (F. 431.). Much benefit will also result from a j udicious choice of refrigerant beverages or drinks during the stage of excitement. A selection suit- able to particular cases may be made from those prescribed in the Appendix. (See F. 592, 593, 594,595.915 and 916.) 140. 0. External refrigerants are of great ser- vice, but they often require much discrimination. The patient, especially in warm weather, should be laid upon a hair mattress, covered only by a single sheet, and his surface sponged, in the more active states of febrile excitement, with cold spring water. If this be done frequently, as much benefit and much less fatigue will be ex- perienced, than from the cold afl'usion, which, although more rapidly lowering the animal heat than it, hastens the return of the cutaneous reac- tion. If much determination to the head exist, the hair should be cut off, and cold, in various forms, as the afj'usion of a stream of cold water, evaporating lotions, &c., should be resorted to, the head being placed on a cool pillow. Formerly, there was much difficulty in regulating the tem- perature of the head ; for, although one half of it was readily cooled by lotions, the other half was kept remarkably hot by the feather pillows in constant use. I frequently, therefore, placed under the pillow-case a Iblded piece of cotnmon floorcloth, which, by intervening pieces of linen, might'be so managed as to carry off the excessive heat of the head, as rapidly or as slowly as could be desired. Pillows may now be filled with either air or cold water, and their temperafure regulated according to circumstances. 141. In cases of determination to internal viscera, excepting to the liead, the use of external refrigeratits is mere or less hazardous j and, if 926 the local complication be serious, and the general excitement of a low or adynamic form, it siiould be laid aside. But when this form of reaction is general, and not attended by excessive determin- ation to, or congestion in, any of the thoracic or abdominal viscera, tepid, or ivann sponging and ablution, will prove both useful and grateful. Whether cold, tepid, or warm sponging be adopt- ed, the addition of bicarbonate of soda or of potash, or the bi-borate of soda, to the water thus used, will tend to relax the skin, and will cleanse it from tiie impurities which impede its functions. In cases accompanied by an acrid heat of surface, tepid sponging, or the tepid l)ath, medicated as just directed, will be advantageously followed by frictions with sweet oil, which, by relaxino- the exhalants, will cool the surface. 142. c. Antimnnials are amongst the most energetic contra-stimulantsm fever; but they are not suited to all fevers, nor to all their stages. They are most serviceable in the more sthenic or inflammatory forms, in those arising from other causes than infection, in some epidemics more than others, and in the earlier periods. The best preparations are the true James's powder and the -potassin-tarlrate, the former of which may be con- joined with calomel and small doses of camphor, or with mild aperients ; and the latter may be given in various salme solutions, or in the patient's coin- nion drink. Tartar emetic has been employed most largely in Italy to lower febrile excitement, but I believe that it will be found equally beneficial and less injurious to the digestive mucous surface when used in moderate doses. I have frequently given as much as three or four grains in the course of the day in solution ; but from one to two grains has been equally serviceable. It is especially indi- cated when pulmonary affections supervene in tlie course of fever ; but it should not be prescribed in low or adynamic fevers, even vilien thus com- plicated, unless with great caution, and in com- binations hereafter to be noticed. A judicious use of either of these medicines early in the stage of active excitement, will often either entirely super- sede depletions, or prevent the necessity of having recourse to those which are large. 143. B. Inordinate depression of vascular ac- tion, during the period of the disease which usually follows that of invasion, is very much less frequent than the states of excitement. It sometimes requires the most active means to remove it, but these means should have reference to the cause, and the vaiious pathological states attending it. This condition generally arises from the intense impression of the exciting cause on the organic nervous influence, preventing thereby the evolu- tion of vascular reaction ; the stage of excitement either not following the earlier changes, or ap- pearing in an irregular and imperfect manner. In such cases, whicli are most common in certain epidemics, and in some localities productive of the more concentrated states of malaria, there is generally more or less congestion of the large vessels, and parenchymatous viscera; and llie vascular depression is dependent — 1st, upon low- ered nervous influence; — 2dly, upon an over- loaded or oppressed state of the circulating and vital organs — the state of co»^'es((iiM so stiongly insisted upon by Staiii. and liis disciples, but whicii 1 have shown (§ 92.) not to be a primary change, us believed by more recent writers. In FEVER — Curative Treatment. this case, the means advised for the stage of in- vasion (§ 122.) should be resorted to, especially the heated air or the vapour hath, and warm baths, followed by frictions of the surface. In some cases, especially when irregular or unavailing efforts at reaction are made, the abstraction of a few ounces of blood from a vein, whilst the pa- tient is immersed in a warm bath, and frictions of the surface are being employed, will often assist in restoring circulation to the surface, and in removing the internal congestion. If the pulse rise during the flow of blood, a larger quantity than otherwise might be safe may be taken, or the operation may be repeated, according to the eft'ects observed after tiie first evacuation. If a satisfactory result is not soon observed from these, a hot turpentine epithem should be placed over the epigastrium and abdomen, and covered over with oiled silk, or leather, so as to prevent eva- poration ; and be either kept there or renewed until erubescence of the surface is produced. In the inore dangerous cases, a similar epithem may also be applied to the insiJes of the thighs. At the same time, moderate doses of camphor or ammonia may be given internally, in warm dilu- ents, or small quantities of tiie chlorate of potash. Depressed vascular action, whether occurring in the early progress of the disease, or consequent upon some grade or other of excitement, being cliiefly .an effect of the change in the state of organic nervous power, although often associated with congestion at the commencement, and with vitiation of the circulating and secreted fluids in the latter stages, should be further combated by the measures which are re(juired for tiie fulfilment of the next intention ; an especial attention to these conditions being paid in the remarks about to be ofl^ered. 144. C To support organic nervnus and vital power, especially when associated with imperfect vascular reaction, or witli a moibid state of the blood, or when proceeding from exhaustion, is of the greatest importance; but the circumstances in which the accomplishment of this intention be- comes requisite, and the treatment most appro- priate for it, in the various states of fever, are amongst the most diflicult topics of practical medicine. In certain varieties, especially those tliat commence with low excitement or imperfect reaction, the debility is owing in great measure to s)f/;pessi(m of power — to the overloaded state of the vascular system, consequent upon interrupted exhalation and secretion, preventing its free re- action upon its contents. In such, power is best restored by moderate vascular depletion, tiie pulse becoming more free and developed as the con- gestion and load are removed. It is in this class of cases that early evacuations are most requisite, as the best means of preserving vital power, and arc the oftenest neglected ; whilst in others, par- ticularly those which are characterised by ex- cessive action, although attended by loss of vascular tone and nervous power, or by a vitiated state of the blood, or botii, depletions are inap- propriate, and the most likely to be injuriously resorted to. In certain adynamic fevers, in which reaction assumes tliis latter form, and apparently indicates bloodletting rather llian opposite means, if employed sufliciently early and witii much circums[)ection,some advantage, or little mischief, may result from it, especially if the patient was FEVER — Curative Treatwent in health, well-fed, or at all plethoric, before the attack. But when the pulse is very quick, broad, or open, the vessel yielding on a gentle pressure of the finger, as well as before the impulse of the heart upon the column of blood in it, depletions should either not be attempted, or be accompanied with remedies which will restore nervous power. In general, however, they are in any mode hazardous in such cases ; tlie febrile poison or cause having infected the organic nervous influ- ence, and the vascular system, as well as its contents, and prostrated vital power in such a manner as to be roused only by tonics and re- storatives. But even in these circumstances, stimulants should at first be cautiously used and judiciously selected ; for a too early recourse to them, especially to such as are at all heating, may be very injurious. When this state of the cir- culation occurs late in the disease, or is consequent upon a more vigorous reaction, and an obviously vitiated state of the blood, the most energetic means of restoration are necessary. 145. Debility from suppressed power is frequent in the early periods of fever, when the brain and lungs are predominantly affected, and is best relieved by moderate depletions and derivatives. Care should be taken to distinguish this form of debility, as, whether occurring early or late, the use of stmiulants would be more injurious than beneficial, unless in peculiar circumstances, and when these medicines are conjoined with other more appropriate means. The association of this state with vascular conjestion, in these as well as in other cases, requires rather the treatment directed for depressed vascular action (§ 143.) than that for exhaustion. 146. It must be evident from the foregoing, therefore, that numerous circumstances must be duly considered before restoratives — either of a tonic or stimulant kind — should be resorted to in fevers. These circumstances furnish the true indications for the employment of them, and are chiefly the following : — a. The intense operation of the causes of infectious and epidemic fevers, these generally requiring, caieris paribus, an ear- lier and more liberal use of restoratives than those which are sporadic; — 6. The summer and au- tumnal seasons; — c. An age past the meridian ; — d. Imperfect nourishment and clothing; the patient iiaving lived chiefly on vegetables, or on fish, or salt provisions, or having been addicted to ardent spirits, or to sexual indulgences ; — e. An intermittent, remittent, or low tijpe of fever, or any of its adynamic _/())7ns, especially if uncomplicated with any inflammatory state ; — _/'. The continued operation of the poisonous efliuvia which caused the disease, as in low marshy situations, the close air of crowded hospitals, &c. ; — g. Signs of real debility or of exhaustion, especially when at- tended by a moist or flabby tongue, by a very soft and quick pulse, the secretions not being suppressed ; — h. An indifferent or apathetic state of mind, despair of recovery, mental depression, &c. ; — and, ('. The symptoms enumerated above as contra-indicating bloodletting (§ 133.). Besides these, there are numerous others, which appertain more especially to certain species and forms of fever, and which will be noticed hereafter. Va- rious circumstances may, however, arise, which will render vascular depletions, and a recourse to tonics, and even to stimulants, nearly at the same 927 time, extremely proper. Remittents and inter- mittents, particularly in warm countries, and several complicated states of continued lever, often exemplify this. 147. The selection of means in order to support nervous and vital power must have reference to the cause and form of fever, and to existing patho- logical states and complications. In endemic fevers, the various preparations of cinchona and sulphate of quinine are upon the whole most appropriate. In those caused by infection, lhesa.me preparations with camphor, the chlorates, especially the chlo- rates of potash and soda, serpentaria, arnica, camphor with opium, wine given in Seltzer water, yeast, carbonic acid, various tonic infusions taken with the citrate of ammonia in a state of effer- vescence, spirits of turpentine, pyroligneous acid, kreosote, the mineral acids and lethers, especially the hydrochloric or chloric, and chloric (Ether ; and in the complicated states of fever, especially ex- ternal derivatives, vesicatories, sinapisms, epithems with warm turpentine, or liniments wuh this latter, and camphor, capsicum, &c., are the most eflicient remedies. When the blood appears contaminated, or the excretions acrid, offensive, and excoriating, combinations of tonics with antiseptics, as the de- coction of cinchona with the chlorate of potash — a combination which I have used for many years with much success — or with chloric acid and chloric ffither ; the pyroligneous acid with kre- osote ; spirits of turpentine, &lc. ; and these, or similar substances, administered in enemata ; are the most to be depended upon. But the appro- priation of these and of other remedies to the par- ticular forms and states of fever, is more fully shown in the sequel. 148. D. The promotion of the exhalations, se- cretions, and excretions, by emetics, purgatives, diaphoretics, and diuretics, is a most requisite in- tention in the cure of every type and form of I'ewer. By a judicious selection of means belonging to these classes of remedies, adapted to existing pathological conditions, vascular action may be developed when it is low or suppressed, or mo- derated when it is excessive ; nervous power may be relieved when it is oppressed, or supported when it is exhausted; and the circulating fluid may be preserved in a state of comparative purity, or relieved from the contamination it mav have experienced in the course of the disease. 149. a. Emetics were formerly more employed in fever than at present. — Svdekham, Stoll, and many others, prescribed them very generally ; but the recent views as to the seat of fever in the brain, and digestive mucous surface, have tended to bring them into disuse. In the early statues of the simple and sporadic forms of fever, they are often of great benefit, especially in arresting them, as advised above (^ 121, 122.), or in developino- imperfect action. They are seldom productive of much service after the excitement has become fully established or stationary, and should not be employed in the cerebral complication, or when tendeiness or pain are felt in the abdomen, espe- cially at the epigastric region. AVhen prescribed thus early, they are calculated to prevent con- gestions of the lungs and liver, and even to remove them at their commencement. Sydenham, from a fear of their efl^ects upon the brain, seldom prescribed them until bloodletting was premised, and thereby lost much of the benefit they are 928 FEVER — CuRA calculated to afford, inasmuch as the period at which bloodletting could be advantageous, was raore advanced than that in which emetics are most serviceable. Ipecacuanha is, upon the whole, the best substance that can be used. Tartar emetic is not so safe, if there be tendency to the gastric complication, or in low infectious forms of the disease. Some authors have recommended emetics at a late period ; but I have had but litile experience of them later in fever than I have advised them. In the early stages I have both frequently prescribed them, and seen them pre- scribed, with benefit. They may, however, prove beneficial in more advanced periods, especially in tlie bronchial complication, and to answer par- ticular purposes; but they sliould be conjoined with such other substances as will assist them in answering tiie especial intention with which they are directed. 150. 6. Purgatives are the most generally prescribed medicines in fever, in this countr}'; and are at least amongst the most useful when judiciously selected. Calomel early in the disease, in conjunction with Jameses powder, and in the adynamic states with camphor, &c, — jalap with cream of' tartar, in sporadic cases — the mild neu- tral salts, OT the more cathartic salts in mild doses, in similar circumstances, — rliiLbarb in nearly all fevers, variously combined, — spirits of turpentine with casior or olive oil, &:c. when the head is much affected, and in certain states of the ab- dominal viscera ; and various other mild aperients, as manna, tamarinds, prunes, &c., with the ci- trates, tartrates, &c. ; are the most serviceable. The phosphate of soda, or any of the strong neutral salts, either alone and in small doses, or with diaphoretics and diuretics, will frequently pro- duce both refrigerant and evacuant effects. They are indicated ciiiefly during the stages of excite- ment, more especially in sporadic and endemic fevers. 151. In general, the purgatives used in fevers should be mild, and such as are not calculated to irritate or inflame the digestive mucous surface. They should be employed with the intention — 1st, of simply removing mucous sordes and accu- mulations from the prima via; — 2dly, of pro- moting the secreting and excreting functions of the collatitious viscera, and of the intestinal sur- face ; — and, 3dly, of thereby unloading the vas- cular system of a part of the efl'ete materials conveyed into it, and liable to accumulate in, and contaminate, tiie blood. They should rarely or never be prescribed with a view of deriving the circulation from other parts to tiie digestive canal ; for, in fevers, irritants of any kind acting upon this part will often react upon the brain and liver ; with the exception of the purgatives just en\ime- rated. If oils be employed, especial care should be taken that they are quite fresh, otherwise tliey may occasion great danger. In pulmonary com- plications, the addition of the potassio-tartratc of an- timony in small dojes.or of ipecacuanha, to the pur- gatives, will be useful, and uill promote their ope- ration. In advanced stages, the utmost discrimina- tion is necessary in the selection of purgatives, and more especially if we dread the presence of disease of the mucous follicles. In these, doses of rhubarb sudicic-nt to evacuate freely the bowels, with the liydrargyrum cum creta, cain])hor, and ipeca- cuanha, are most beneficial. This lesion is com- TivE Treatment. monly connected with, if it be not caused by, the injurious remora of sordes or morbid secretions in the canal, and by a vitiated state of the blood; the aperients or purgatives selected should, there- fore, not merely be mild, but possess tonic and antiseptic properties, or be conjoined with such substances, especially camphor, cinchona, sul- phate of potash, the chlorates, or kreosote, 152. c. Diaphoretics should be prescribed with strict reference to the existing degree of excite- ment ; for if the vascular action mount above a certain pitch, the cutaneous exhalation cannot be procured until it is reduced ; and if it sink too low, the perspiration will either be interrupted, or become partial or clammy. In the stage of ex- citement, therefore, depletions and refrigerants are the most efficacious diaphoretics ; or such substances as relax the skin by acting on the digestive mucous surface, as calomel with anti- mony, and in some forms of fever especially, with opium ; or ipecacuanha with nitre and opium, &c. During this period, the more cooling diaphoretics should be selected, especially those mentioned under the head of refrigerants, (^ 139.), and emollients and relaxants, will often very materially aid their operation, especially if gastric and in- testinal irritation be present. Whenever vascular action, or vital power, particularly the latter, sinks materially, the warm or stimulating dia- phoretics, as camphor, serpentaria, ammonia, arnica, &c., should be preferred, and be combined with tonic infusions, &c., according to the cir- cumstances of particular cases and existing patho- logical states. 153. d. Diuretics are upon the whole less re- quisite in fevers, tlian the preceeding ; but they are often useful adjuncts to tonics, diaphoretics, or even to the milder purgatives. The Eetherial pre- parations, especially the spirits of ?(ifr(c (Ether, citric acid, and the citrates, the tartrates, and most of the neutral salts, and nearly all the refri- gerants (139.), may be thus employed. They are indicated more especially in the pulmonary, cere- bral, and hepatic complications of fever ; those of an antiphlogistic kind being the most appropriate. 154. e. Mercurials are often necessary in fevers, especially calomel, blue pill, and the hydrargyrum cum creta. Calomel is of great service as a de- obstruent purgative, in fevers arising from ende- mic causes, especially when the liver becomes obstructed ; in conjunction with opium, after bleeding, in the gastric and other complications ; and with camphor and opium, in certain malignant states, which will be particularly noticed. //(/- drargi/rum cum creta is most useful with ipecacu- anha and rhubarb, or with camphor and opium, in the intestinal afl'ections occurring in the pro- gress of the disease. Of the use of mercurial frictions in continued fevers I have not had much experience ; but in periodic fevers, when the liver has become enlarged, 1 have directed them with advantage ; using either the ointment with camphor, or the mercurial liniment with the coin- pound camphor liniment, or one of those in the Appendix (F. 306.31].). Mercury pushed so far as to affect the mouth or to produce su//i'«(i())i, has been considered both a prophylactic and a cure for fever. I have tiied to affect the system in the most malignant forms of fever in warm climates, without succeeding ; and where 1 have succeeded, there was every reason to believe that recovery FEVER— CunA would have taken place nevertheless. In some complicated states of fever in this country I have given very large doses of calomel and camphor with opium every four or six hours, with success ; and although recovery has taken place, as fre- quentl}' without the mouth having been affected, as otherwise, I have generally considered tiie latter a favoui'able occurrence. 'I'liis treatment was introduced by me about fifteen years ago, and was then resoned to in many cases in a publie institution : it was taught in my lectures, and pub- lished in several periodicals ten or twelve years since. 1 he circumstances in which it is calcu- lated to succeed will be pointed out hereafter. That mercury possesses no projjhylactic influence against fevers, has been satisfactorily shown by several able writers, and proved by my own ex- perience. A person, who>e mouth was affected for the cure of sj'philis, was seized with malignant remittent fever, in Africa, in 1817, and came under my care soon after the attack. lie died a few days afterwards; the most active treatment having failed in developing vascular reaction, and in supporting the vital powers. A nearly similar case is mentioned by Dr. Graves, in his excellent lectures. I believe, however, that instances in which salivation has followed a mercurial treat- ment of fever, without recovery having taken place, are very rare. 155. E. It is often necessary to remove local con- gestions, determinations of bUiiid, or predominant states of vascular action, or other disease of -parti- cular viscera, during the progress of fever, and thus to protect important viscera from injury during the febrile action.- — a. One of the most dangerous and most frequent complications — one which does not limit itself to any particular type or form of fever, although more frequent in some localities than in others, and in some epi- demics— is predominant affection of' the digestive mucous surface, particularly of tlie lower part of the ilium and cfficum. This condition is more par- ticularly noticed hereafter, with reference to its early occurrence ; when it forms the mucous gas- tric and intestinal fevers of authors. It is chiefly to its occurrence in the advanced stages that I shall here advert. Notwithstanding the erroneous views of Broussais and his followers as to this point of pathology, we are indebted to them for the great attention which ha^ been paid to it in recent tmies. Unfortunately, lesions in the small intestines may proceed to a fatal issue in fevers, without any evi- dent sign of their existence. Those symptoms, nevertheless, which are most frequently observed, as well as those which are occasionally connected with them, should receive due attention. When, therefore, pain or tenderness are felt in the abdo- men or epigastrium on pressure, with tension and burning heat, a loaded tongue with red point and edges, a soft and very quick pulse, from twelve to twenty leeches should be applied ; and after the bites iiave bled sufficiently, a warm turpentine epithem or fomentation in the same situation will prove of great benefit. This epithem has been very frequently employed by me, since 1820, in the complicated states of fever, in both public and private practice, and has been publicly recom- mended by me for them on several occasions soon after that time. 156. a. If this complicationappear early in fever, a repetition of these means will often be neces- VOL. I. ivK Treatment. 929 sary : and, if the bowels be not sufliciently free, or if the evacuations be acrid and offensive, lax- atives, especially rhubarb with the hydrargyrum cum creta, ipecacuanha, &c., and emollients or demulcents, will be necessary. If it occur very late in fever, and be attended with much de- pression, or with diarrhaa, small but fretiuent doses of the hydrargyrum cum creta, with cam- ])hor, ipecacuanha, and opium, ought to be given, the above epithem being also resorted to ; and, if these fail, the chlorates, particularly the chlorates of potash or of lime, should be prescribed, with the preparations of cinchona, or of tormentilla ; or the treatment advised for the Asthenic Forms of Dysentery (§ 88. et seq.) may be employed. In these latter cases the affection of the mucous follicles is either consequent upon, or coclaneous with, contamination of the circulating and se- creted fluids; therefore the chlorates, cinchona wiih hydrochloric acid, chloric aither and opium, camphor in large doses, kreosote, and other tonic and stimulating antiseptics, are especially indi- cated. If dark grunious or bloody stools, and more particularly if large discharges of blood take place, turpentine should be administered by the mouth, and in demulcent enemata, it being the most efficacious means we possess in such circum- stances, as well as when flatulent distension of the abdomen supervenes. Ulceration of the fol- licular glands, and softening and even sloughing of the mucous surface of the. bowels, may take place in the latter stages ; and, although these lesions are often preceded by the symptoms just noticed (§ 155.), and attended by evacuations indicating their occurrence, no very conclusive evidence of their existence may be observed, unless they terminate in perforation and peritonitis. This is more especially the case, when the abdominal symptoms are marked by severe cerebral afl^ec- tion. But ulceration may especially take place in this insidious manner also when the sensibilities are not thus obscured, and even during the pe- riods of decline and convalescence. — These more extreme changes in the internal surface of the bowels, can be met only in the manner just ad- vised, tlie medicines being exhibited both by the mouth and in enemata ; and by the means re- commended in similar states occurring during Dysentery (§ 89.). — I( peritonitis consequent upon ulceration and perforation supervene, tere- binthinate epithems, or sinapisms, and large doses of opium, as advised by Dr. Graves and Dr. Stokes, or of camjjhor and opium, are the most rational means. The administration of other medicines by the mouth or by injections, or, in- deed, the ingestion of any substance whatever, may increase the mischief, by its passing through the perforation, which may possibly be repaired, if the actions of the bowels be restrained by the reinedies ju'^t advised; the natural processes which sometimes take place in such cases, being thereby favoured. I'he application even of leeches may be injurious, particularly if this oc- currertce take place late in, or during adynamic states of, fever, by depressing the powers of life too low for the exertion of the usual processes of reparation. 157. B. The occurrence of diarrh<^a, of a. m'\]d character, the stools being feculent and not re- markably unhealthy, should not beinteifered with, pjore especially at a critical period of tlie dis- 3 O 930 ease. But when the symptoms of inordinate vascular determination are present, the evacua- tions being watery, offensive, or otherwise mor- bid, small doses of hydrargyrum cum creta and Dover's powder should be given every four on five hours ; and, if these fail, and more especially if the type of fever be low, the stage far advanced, and vital power depressed by the evacuation, the more active means just mentioned (§ 157.) should be administered. This complication is more common, and more apt to assume a dangerous form, in some localities than in others. Tims it is more frequent and severe in Paris than in London, and in London than in Edinburgh, pro- bably owing to the water in common use in these cities. 158. y. When flatulent distension of the abdo- men comes on in any of the forms of fever, but more particularly in adynamic states, Piorry advises that an elastic tube should be introduced into the rectum in order to carry off the flatus. I am, however, not sure that the discharge of it in this manner is so beneficial as may be supposed ; and I am confident, that at the period of the disease when this is a troublesome symptom, the internal surface of the bowel will be readily Injured, owing to its tender and almost softened state, even by the incautious introduction of a clyster-pipe. 1 have, since 1820, recommended and employed the spirits of turpentine, in cases of this kind, — by the mouth, in several forms (F. 216.), in enemata(F. 150, 151.), and in warm epilhems and fomentations placed upon the abdomen. This substance is especially indicated where, witli the abdominal distension, and intestinal affection, there is also delirium or coma ; and is equally beneficial in a relaxed, as in a constipated state of the bowels ; for, by modifying the dose and the combination, it will increase or restrain their ac- tions, according as either effect is desired. In a remarkably dangerous, and indeed hopeless, case of this description, which I attended in 1822, with Mr. BvsHELi. of Crawford Street, this medicine was resorted to with Instant benefit and ultimate success ; and, although 1 have met, both pre- viously and subsequently to this date, witii nume- rous instances, in public and private practice, where it has proved equally beneficial, I refer to this in preference, because It is amongstthe earliest cases of the kind, of which I can find the notes, where I employed this medicine in consultation with another practitioner, — the fact thus not resting merely upon the testimony of an observer, who may be supposed to be over-partial to a medicine which he was the chief means of bring- ing into general use (see my Menwirson the Action (ind Use (if Terehinthiniile liemedies in various Dis- eases, in the Lond. Med.and I'hijS. Journ. for July and August, 1821.), but also upon that of an equally competent observer. A nearly similar in- stance to that now referred to is adduced by Dr. Graves (^Lond. Med. and Surg. Jour)i. vol. ii. p. 781.). 159. The nature and treatment of the com- plications of fever with intestinal disease have not always been well understood ; for, as they liave too frequently been considered as merely inflam- matory, and not lis consequences of the |)alhologi- cal states explained above, so have they been viewed as contra-indicating the exhibition even of mild purgatives. — This, however, is not the case; FEVfiR — Curative TnEATiiENT. ■ inasmuch as they may not only be occasioned by the insufficient use or neglect of these medicines early in the disease ; but also aggravated by the same cause, at a later period. The septic and ir- ritating effects of the morbid secretions and e.tcre- tlons poured into the alimentary canal, and even from its own surface, during the course of adynamic fevers, when its mucous membrane possesses its minimum of tone and vital resistance, require both that the intestinal contents should not be allowed to accumulate and remain long in contact with it, and tliat they should be rendered less injurious by dilution and the exhibition of antiseptic substances, — indications of which both reason and experience have shown the propriety and success. 160. ft. 'The compliciitions of fever icith severe lesions of the respirator}/ functions and structures aie more frequent, and often occur earlier, than generally supposed. — The influence of early im- pairment of these functions in tlie production of the consecutive phenomena of fever should of it- self attract a particular attention to them during the progress of the disease. We shall generally find that, in proportion as the causes of fever act intensely upon the lungs, and impede the changes of the blood in them, the more severe and corn- plicated will be the form of the disease, and the more disposed will this organ be to experience either manifest or concealed disorder, generally consisting of a peculiar congestive form of bron- chitis, or of congestion of the lungs and bronchial lining, or of determination to these parts, or of asthenic or nervous pneumonia, passing into con- densation of portions of the organ, in the lower types of fever ; or of perlpneumony or more purely inflammatory states of both the lungs and pleura, in the more inflatnmatory varieties. There are also other circumstances which should influence the treatment of these complications, viz. — a. I'heir greater frequency in the low adynamic fevers, than in the sthenic ; in the continued, than in the periodic types ; and in some epide- mics, seasons, and localities, than in others; — b. The particular stage of the feverin which they ap- pear ; — c. The part they seem to act in superin- ducing fui ther complications, especially cerebral and hepatic affections ; — and d. Their particular form and character in relation to general vascular action and nervous power. It must be evident that, inasmuch as this com])licatlon may super- vene, and proceed to a fatal length, without de- tection, especially when the brain is much affected, an attentive inquiry after it should be made by means of auscultation, through the progress of the disease, and even during convalescence. 161. a. In cases where the local aflTectir.n, as well as the general dise.ise, evince most of the in- flammatory characters, general or local depletions, according to the circumstances of the case, are especially indicated. Of the latter, cupping is the most useful, es[)ecially between the shoulders, — and if leeches be applied, the glasses may be placed over the bites. In the adynamic states, local depletions only are adinissiblc ; and if leeches be used, attention should be paid to the bleeding afterwards. If further depletion cannot be ventured upon, drii cupping on the back or chest will sometimes be serviceable. Great advantage will also accrue from resorting to external deriva- tion or revulsion, after sufficient depletions iiave been practised. The repeated application of blisters. so as to produce merely a rubefacient effect ; or of sinapisms ; frictions with irritating liniments (F. 299, 300.), especially with capsicum, croton oil,&e. ; and stinging with nettles ; are frequently beneficial. But I have found, in numerous cases, since 1821, of both common and eruptive fevers, where these means have failed, that warm tere- bintliinate epithems, placed over the chest or epigastrium, or even upon the insides of the thighs, and retained or repealed until erubescence and burning heat were caused, have produced decided benefit. Such instances have occurred where I have met with other practitioners, amongst whom I may mention JMr. FAX0>f, Mr. Barn- well, Mr. Painter, Mr. Bryant, Mr. Byam, Dr. T. Williams, and INIr. Leese, who have witnessed with myself the efficacy of this appli- cation. 162. B. Antimonials, especially the tartar emetic solution, have been much employed in this com- plication ; but the caution already offered re- specting their use(§ 142.), particularly in the low forms of fever, should not be overlooked. The doses of the potassio-tartrate of antimony ought not to exceed the quantity advised above. When judiciously employed, and following moderate de- pletions, it is productive of great benefit, and very frequently prevents the necessity of recurring to bloodletting. In some of the states of predomi- nant pulmonary affection, where, although occur- ring early in the disease, vascular depletion can hardly be ventured upon, this substance, eitlier alone, or with camphor and small doses of squills and opium, will often prove efficacious. In such low forms of the complication, especially when supervening late in fever, even tartar emetic may not be cither beneficial or indicated. In these, the external derivatives j\ist mentioned ; ipecacu- anha with camphor and opium, or also with squills; the decoction of senega, and other medicines ad- vised in the Asthenic Furm o/' BRONcniTis ( 79. 84.) ; will prove most serviceable. It will some- times become a question, whether or not wine and the more active tonics and stimulants, sometimes required at an advanced stage of adynamic fevers, should ever be administered when complicated with nervous or asthenic bronchitis or pneumonia. To this I would answer, that, having resorted to the means already advised, or merely to dry cup- ping, the external applications and the internal medicines just insisted upon, without benefit, vas- cular depletion not being further admissible, the administration of appropriate stimulants and tonics should not be longer delayed, and more especially in an advanced stage of fever, the external means being repeated and assiduously persisted in. Be- fore, however, wine and the more heating stimu- lants and tonics be resorted to, the effects of cam- phor in full doses, or of ammonia, with opium, &c., should be fully tried. If the bronclii be loaded with accumulated mucus, and the respira- tory functions thereby obviously impaired, the ex- hibition of an emetic (F. 198. 402.), or repetitions of it, will be serviceable, however late in the disease. 163. y. The treatment just advised is also ap- plicable to the more rare complication with pleu' ritis. Vascular depletions are more generally re- quired, and maj' be carried to a somewhat greater extent in it, than in associated bronchial and pneu- monic afl^ections. Full doses of calomel, James's powder, and opium, are particularly indicated ; FEVER — Curative Treatment. 931 and if the mouth become afl^ected, the occurrence may be considered favourable. The external re- medies sliould be strenuously enforced, particu- larly the turpentine epithem, on the outside of which a piece of soft leather or oiled silk may be laid, in order to prevent evaporation. The tartar emetic solution should also be prescribed ; and the more largely, the more manifestly sthenic or inflammatory the fever and local affection ; in order to economise the loss of blood. 164. c. l be affections nf' the cerebral functions owing to their nature, often present more promi- nent characters in fevers, and hence attach to themselves greater importance than they are actually entitled to. Even in cases where they have been most remarkable, the post mortem exa- mination has not disclosed any lesion sufficient to account for them. The circumstance of their being more frequently caused by the state of or- ganic nervous influence in the encephalon, and by morbid changes in the blood, and of their being often consequent upon affections of the respiratory functions and of the digestive mucous surface, has been too generally overlooked ; and a treatment has consequently been adopted, more calculated to interfere with the salutary eflx)rts of nature, than to remove morbid conditions which have actually existed. If we analyse those cases which present, in the common estimation, very prominent lesions of the cerebro-spinal functions, and compare these lesions — whether of mental manifestation or of voluntary power — with those evinced by the other organs or systems, — with the functions of digestion, assimilation, circulation (comprising the changes afltcted by respiration on the blood), secretion, and excretion — in what will the pre- dominance of cerebral disorder be found to con- sist ! and, still more, to what organ or system will the balance of morbid action incline? Keeping, therefore, this inference in view, that prominent symptoms, especially those connected with the sensative functions, do not always prove, or truly indicate, the amount of lesion, or even its seat in the part disturbed, the cerebral complications of fever should receive a due but not an exclusive attention, even when most predominant. In proof of this position, 1 can appeal to no very limited experience, and to those who, like myself, have witnessed the worst forms of typhus fever, as they occurred in various parts of France and Germany soon after the peace, whether or not death was caused more by the cerebral than by the other changes, judging from an intimate analysis of the symptoms in the latter stages, and of the morbid appearances. Indeed, in many instances, the le- sions of other organs were individually greater than those found within the cranium. 165. In cases of fever attended by very marked determination of blood to the head, or by vascular action increased to an inflammatory state, or by severe cerebral symptoms at advanced stages of the 'disease, vascular depletions ; full doses of calo- mel, with purgatives, or followed by them, espe- cially by Formula 216., and enemata (F. 140. 150.) ; and cold applied to the head, particularly the cold aft'usion on it, the rest of the body being kept moderately warm, or revulsants being applied to the lower extremities; should be promptly re- sorted to. Bloodlettings ought not, however, to be too implicitly confided in, for they will never of themselves remove this complication. No advaa- 30 2 932 tage will accrue from opening the temporal artery or jugular vein, above that derived from bleeding from the arm ; and even this will not be frequently requisite ; the more especially as an equal or even greater benefit, at a less waste of blood, will re- sult from cupping largely on the nape or over the mastoid processes, or from leeches in the latter situation and occiput. Both bleeding and the cold affusion on the head may be carried to an injurious length, especially if it be attempted to remove, or materially to benefit, within an inade- quately short time, this complication; many of the phenomena of which are dependent upon, and inseparable from, tiie fever, and to be removed only with it. Let not, therefore, this or any other treatment be mischievously persisted in, with the mistaken view that it can accomplish what the nature of the disease renders impossible ; but at the same time, let it not be insufficiently employed. Purgatives, especially those with ca- lomel, with James's powder, or other antiiiionials, should follow early depletions, particularly if this complication occurs early in the fever; and at later periods the calomel may be given with opium, every four or six hours, the bowels freely opened, and derivatives applied to the insides of the thighs or calves of the legs. As to the treat- ment of Coma and Detjrium in fever, it is unne- cessary to add any thing to what I have advanced in those articles, and at other places in this. It should, however, be recollected, that other com- plications may coexist with predominant cerebral aflection, particularly in adynamic fevers ; and if this affection be very severe, or consist of deli- rium or coma, and more especially if it depend upon a morbid state of the blood, these complica- tions may be thereby masked, and proceed to a fatal height before they are delected. This we have seen to be the case as respects the lungs and intestines, and it is not less so as regards the liver and spleen. Nor should the readiness with which sphacelation occurs, either from the pres- sure of the body, or from excoriating discharges, and inattention to cleanliness, and to the pre- servation of a dry state of tiie linen, or from blis- ters or injuries, "be overlooked ; for an early in- quiry after the first indications of this occurrence will ofien prevent much trouble, suffering, and danger, 166. F. The regimen and ranagement nf pa- tients in fever are much more essential to re- covery than is sometimes si:ppo?e(l. Not ordy are the purity, dryness, and rapid renewal of the air deserving of attention, but also its tempera- ture, which ought to be regulated, as well as the quantity oT the bed- clothes, accordmg to the states of vascular action and vital power. The patient should be skieencd from too free a current, p;n-ticularly of cool air, and especially in fevers of low excitement, as the pulmonary and, indeed, other complications may be induced by this circumstance. When excitement is fully developed, the air should be cool, and the clothes light; but in other conditions, especially when the temperature of the body does not rise above natural or is depressed below it, proportionately increased warmth is necessary, in respect of bntli the air and the quantity of bed-clothes. The room aNo should be darkened, all noise excluded, and mental excitement or irritation carefully avoided. The mouth and gums ought to be FEVER — CunATivE Theatmekt. washed from time to time, and the linen changed very frequently ; the surface of the body being sponged with simple or medicated water, of a temperature in relation to the forms of fever, as stated above (§ 140.). All the evacuations ought to be passed in the bed-pan without leaving the supine posture ; and if they take place involunta- rily or unconsciously, oiled silk should be placed next the bed, and folded sheets underneath the patient. Care must be taken that retention of urine or over-distension of the bladder does not occur, without being detected at oii'-e and reme- died. 'J'he accounts of tiie nurse must not be trusted to in this, more than in other matters, but the state of the abdomen above the pubes care- fully examined. If pressure cause excoriations, or threaten sloughing, measures should be imme- diately taken to prevent further mischief. The part may be washed, as Dr. Graves advises, with u solution of ten to fifteen grwins of nitrate of silver in an ounce of water, or with a weak solu- tion of the super-acetate of lead in spirits of tur- pentine ; or with this latter and dilute pyroligne- ous acid ; or it may be covered by defensive plasters. If sloughing occur, carrot poultices copiously sprinkled with the chlorates, particu- larly of lime, or with spirits of turpentine, or with kreosote, must be employed ; or poultices with bark, to which either of these may be added ; and pressure removed from the part and its immediate vicinity bj' air-pillows, or by the use of Dr. An- nott's hydrostatic bed. But these unpleasant occurrences should be prevented, where the ap- pearance of the soft solids and the prostration of the patient indicate a disposition to them, by hav- ing early recourse to these latter means, and by supporting vital power by the means appropriate to existing pathological states. 167. G. The food and diink in fevers should be varied with the existing states of vascular action and power. In periodic fevers, light food maybe allowed in proportion as the apyrexial period is complete. But in continued fevers, particularly during the early stages, and whilst excitement continues, no food beyond thin water gruel, fresh whey, and orangeade or lemonade, should be given. The best drinks during excitement are those prescribed in the Appendix (F. 592. etseg.), or any of the miineral acids in sugared water, and (lavoured by lemon peel, or weak black tea, accord- ing as they may be congruous with the medicines prescribed internally. Thus, care should be taken not to allow the patient any of the mineral acids, wiien calomel, or any of the other preparations of mercury, is being taken. But when vascular re- action is low or imperfect, and vital power consi- derably depressed, or when the pulse is very ra|)id, tumultuous, and soft. Seltzer or soda water with old wine, hock, or weak punch, or wine whey, spruce beer, brisk bottled stoiit or brisk bottled beer, &:c., according to the peculiarities of the case and the previous habits of the patient, may be allowed. If coma be present, green tea is one of the best beverages that can be allowed ; and if the powers of life be very depressed, it may bu made into a weak punch ; the patient also be- ing often roused by talking to him on lively inter- esting topics. He may be allowed oranges, grapes, or lemons sweetened with sugar, particularly when the mouth is foul and dry ; but care should be taken that neither the i)ulp nor the stones are FEVER— Curative Treatment. 933 should not be overlooked. Hence the great suc- cess ascrihed by the older writers to an emetic ia such circumstances. Therefore, after the action of an emetic, tiie bowels also ought to be freely opened by a mild purgative, the operation of which may be promoted by enemata ; and the treat- ment, in other respects, should proceed according to the type and form the disease assumes, and the stage at which our assistance is required. If a relapse is merely threatened, or if the symptoms characterising its invasion be present, the remedies ju~t mentioned are especially indicated, with the other means above advised (§ 121,122.) in this period. (See the art. Debility, § 36. 43. 45, 46. for still more paiticular directions as to the ma- nagement of Convalescence and as to the mea- sures that ought to be adopted.) Swallowed. These will often both refresh and ^eed the patient as much as is necessary until the decline of the disease. If the fever be prolonged, or of a slow nervous character, very light nou- rishment may be allowed as the excitement sub- sides, such as roasted apples, jellies, in some cases asses' milk, sago, arrow root, tapioca, wine whey, chicken or mutton broth, weak beef tea, &;c. 168. fl. Convalescence from fevers requires the utmost discrimination of the physician, and yet both the patient and his friends are but too eager to supersede Iris functions. The ill consequences of mismanagement in this period are chiefly — 1st, Relapse ; — 2dly, Inflammatory atfections of the lungs, bowels, or brain; — -Sdly, Dropsical effusions ; — and, 4thly, INIental alienation. These are usually caused — a. by the patient getting up too early from bed ; — b. by errors in diet ; — c. by too early exposure to the weather, to the sun's rays, to cold, malaria, &:c. ; — , Reports of Practice in Clin. Wards of Infirmary in Edin. 8vo. ed. 1818, p. 14. et seq. — A. G. Richter, Die Specielle Therapie, &c. b. i Bateman, On Contagious Fevers, 8vo. Lond. 1818. ; and Reports on the Dis. of Lond. 8vo. 1819 Black, Clinical and Pathol. Reports, &c. Newry, 1819. J. Johnson, Influence of Tropical Climates on European Constitutions, 4to. edit, passim. — Dickson, On the Prevalence of Fever, and on Houses of Recovery, Brist. 1819. — R. Jackson, History and Cure of Febrile Diseases, 8vo. 2 vols. Lond. 182(i. — C. E. Lucas, The Princip. of Inflam. and Fever, 8vo. Lond. 1822. — C. F. Tacheron, Recherches Anatomico-Pathol. sur la Med. Pratique, vol. ii. 8vo. Paris, 1823. — F. Barker, and J. Cheyne, Report of the Fever lately epidemic in Ire. land, &c. 2 vols. 8vo. Dub. IS'Zl.— Author, in Quarterly Journ. of Foreign Medicine, vol. ii. p. 433. 1819 and 20, and vol. iii p. 7.99. ; Lond. Medical Repository, Jan. 1822, p. 19.; in Ibid. May 1822, p. 376.; in Ibid. June 1822, p. 483., ibid. Sept. 1827, p. 236. ; Lond. Med. and Phys. Journ. Dec. 1820, p..530. ; Medico-Chirurg. Review, vol. viii. p. 36S. J. Annesley, Researches into the Diseases of India and Warm Countries, imp. 4to. vol. ii. p. 409. Cheyne, Report of the Ilardwicke Fever Hosp. &c, ; Dublin Hospital Reports, vol. i. p, 1., et vol, ii. p. 1. et vol. iii. p. 1. — Goodison, in Ibid. vol. i. p. 191. — Proud- foot, Ibid. vol. ii. p. 2."i4. —Speer, in Ibid, vol. iii. p. Itil. Jl. Marsh, in Ibid. vol. iv. p. 4 )4. — R. J. Graves and W. Stokes, in Ibid. vol. v. p. I.— S. l'ercival,in Transact, of Association of King's and Queen's Coll. of Phys. Dublin, v.'24X — O'Brien, in Ibid. vol. i. p. 404., et vol. il. p. 472. — R. Gratlan, in Ibid. vol. i. n,433., et vol. lil. p. 3l6.--,S'le of black pepper, has been lately employed by Bertini, Gordini, and others, in doses of one or two graiiH, to arrest the paroxysms ; and salacina, and alkaloid found in willow bark, has been very recently recommended as a substitute for quinine. Igmiiius's bean, and the preparations of nux vomica were formerly used against ague, by Paui-i.ini, Bocriiu), Aaskow, Clm.i.en, Horn, and Fouoi'ier ; and their ac- tive principle, sfriyc/oiw, niiiy also be found useful j in the lower grades of the disease, especially when I c-jmplicated with diarrhcea ; \a whi-di, as well as in the rfj/senfen'c complication, the tormentil, ipecacuanha, Dover's powder, the hydrargyrum .cum creta, and opium, are useful adjuncts to other medicines. 217. e. 'J'he mineral acids, especially the hy^ dro ■ and nitrochloric, have been given in the deco;;tion of bark, especially when the liver or spleen have been enlarged. I have employed the latter in such cases ; and, in a state of very weak solution, as a common beverage for the patient during the intermissions. The sulphuric acid, similarly exhibited, has been recommended by Storck and Joeruens. It is an useful ad- junct to the sulphate of quinine. The citric and acetic acids have been directed, but chieliy as an addition to the drink taken in the hot stage, in which, however, acid drinks should not be taken, as they tend to diminish the perspiration, which is more or less salutary. — j^ihers, especially the sulphuric and hydr.i-ciiloric have also been pre- scribed in large doses, either alone, or with cam- phor and opium, shortly before the paroxysm, with the view of shortening the cold stage (Hoffmann, Glutton, and Davidson). — The volatile alkali has been likewise employed similarly combined, and with the same intention ; and the various pre- parations of antimony have been given before and during the paroxysm, and throughout the inter- missions, in conjunction with bark or other febri- fuge tonics. Alum was at one time much used in ague, it having been recommended by Ettmuller, Lindt, RliJEi.LER, and others. Lange and De Meza prescribed it with aromatics, and sulphuric acid, or aether; and Adair, with cinchona. — The sulphate of iron has been tried by several writers; but is of inferior efficacy to the sulphate of 7inc, or to the tincture of the sesqui-cldoride of iron. The Prinos verticillatus, and the bark of the Frunus Virginiana, and F. silvcstris, have been mentioned in favourable terms by Barton and other writers ; the bark c f the pine, by Berzelius ; and valerian and gentian, by Vaidy and others. 218./. Anodi/nes have been used in conjunction with, and as adjuvants of, antispasmodics, stimu- lants, and diaphoretics. Opium lias been exhi- bited witii these, and with antimonials, shortly before tiie fit, by IM'Causeand, Breda, and Tiio- MANN'; witii Ci(»i/;/ioj', by Senac and Amelung ; with ipecacuanha and nitre, by Dover; and with aloes and camphor, by Audouard. The extract of belladonna has been prescribed with bark and other tonics, by Hufeeand and Erdmann ; the Lauro-cerasus, by Browx Langrisii ; hitter al- monds, by Bi.RCH's; and the powdered leaves of the Laurus nobilis, by Sir G. Baker, given in doses of two scruples, in bitter decoctions, shortly before tlie ])aroxysni. 219. "■. In olil and protracted cases, attended by inl'arciijn of the abdominal vi&cera., mercurials, especially calonu 1, have been employed in fre- quent doses, until slight salivation was produced, by Wilms, Staiil, Baker, and Lysons ; and the propriety of the practice, in some circumstances, is confirmed by more modern experience. — In similar cases, repeatedyViftfojis of the surface have jiroved serviceable, especially with some one of the liniments prescribed in the Appendix ( F. 299. 311.). Frictions alongthe spine, with stimulating substances, have been advised by Hautesierk, Van Swieten, De Haen, Tknka, and others . • ruhefacienis and 6/(»(frs over the epigastric"" and FEVER, INTERMITTENT— Treatment. 945 upper regions of the abdomen have been directed by KonTUBi, Sciilegel, and the writers just quoted ; and are of essential benefit in conges- tions, inflammatory irritations, or obstructions of the abdominal viscera, and in the low forms of the disease. Frictions with the antimonial oint- ment have been preferred by INI. Peysson. Com- pression of the lower extremities by ligatiires, shortly before the paroxysm, has been advised by TnoTTEu and Kei.lie ; and the cold hath during the intermissions has received, since the appear- ance of the work of Dr. Cuhkie, numerous and often indiscrin.inating trials. In the simple form of ague, or during convalescence, when the prac- titioner is convinced, by a careful examination of the patient and the state of the excretions, that no complication exists, either a common plunge bath, particularly in sea-water, or the shower bath, will often prove serviceable, especially when it is fol- lowed by a genial glow on the surface. 220. /(. Mashed or anomalous ague requires a nearly similar treatment to that already recom- mended. The decided and repeated use of cho- lagogue purgatives, both before, and alternately with, a liberal use of quinine, or other tonics, or of the scsqriioxide of iron, especially when the complaint assumes a neuralgic character ; change of air, and attention to the digestive and excreting functions, are the chief and most successful re- medies. In the more painful or spasmodic forms of these affections much advantage will accrue from conjoining quinine with camphor and col- chicum ; neither these nor other stimulants or antispasmodics impairing the sedative action of colchicum, in as far as regards pain. In some cases of this kind I have given the chlorate of potash in the decoction of bark, and the infusion of valerian with camphor and the compound tincture of colchicum, with benefit. The alkaline carbonates in large doses, with energetic tonics, and the kreosote, are also sometimes efficacious. 221. D. Treatment of the Sequela:. — The treat- ment of agues should not terminate with the dis- continuance of the paroxysms. The functions of the digestive and excreting organs must be re- stored, and the more severe consequences of the disease in the abdominal viscera removed ; other- wise, a return of the fits will follow the slightest causes ; or the obstructions in these viscera will induce very serious structural lesions. Certain of the complications are also among the most serious sequelas of ague, especially diseases of the liver, mesenteric glands, large bowels, &c. ; for these may both accompany and remain after the fever ; or they may not be very manifest, although doubtless previously existing, until the fever has disappeared. This is not infrequently the case with dysentery and chronic diarrhoea, particularly in warm climates : and with dropsies in this country, which, however, are only contingent consequences of the disease. The treatment must mainly depend upon the nature of the con- secutive aflection, which, as respects the liver, commonly consists of enlargement, chronic in- flammation, or both, with or without more or less obstruction of the portal circulation, or of the biliary secretion. In either case the means which have been recommended by JMr. Annesi.ey and myself, viz. local depletions, followed by re- peated blisters or setons ; a full dose of calomel, taken occasionally at bedtime; the hydrargyrum Vol. I. cum creta or blue-pill the intervening nights ; and mild purgatives early in the morning; will be found most beneficial. After these have been persisted in, according to the nature of the case, and the more active symptoms have been entirely removed, this organ continuing torpid, the ?((7ro- htjdrochloric acids used both internally and exter- nally, and exercise on horseback, will be of service ; bufmercurials must have been relinquished some time before the use of the acids. Lastly, a course of Cheltenham or Harrogate waters, or judicious substitutes for them, used daily and perseveringly, will confirm the recovery. 2"22. If the spleen or the 7nesenteric glands be enlarged, frictions of the abdomen with warm sti- mulating liniments (F. 31 1.) * stomachic purga- tives, as aloes, rhubarb with sulphate of potash, and small doses of the sulphate of iron ; the iodide of potassium in moderate doses; and blisters, setons, moxas, &c. .will be found most successful. In neither of these states of disease will depletions be required, unless pain and tenderness on pressure be complained of, when local depletions, followed by blisters or the turjoentine epithem, will be suffi- cient.— The most appropriate treatment, in cases of consecutive dysentery and dropsy, is fully de- scribed in these articles. 223. E. The diet during the intermissions should be light, nourishing, in very moderate quan- tity, and taken at a time not too close upon the accession of the paroxysm. If the disease be of an inflammatory form, or associated with active de- termination to an important viscus, abstinence, as directed by Celsvs, Senac, Tessieu, &c. should be observed. Whilst purgatives are being em- ployed, broths and weak soups are most suitable. In the paroxysm, diluents only are admissible. 224. F. During convalescence, strict attention should be paid to the diet and regimen, and to the states of the digestive and excreting organs. The latter should be assisted occasionally, and always when they are sluggish, by the usual means ; and quinine, the other preparations of bark, or difl^erent tonics, should be continued .*"or some time after the disappearance of the pa- roxysms. Regular and moderate exercise, espe- cially on horseback, also, will materially promote recovery. Exposure to cold easterly or northerly winds, or to the night air and moisture, ought to be carefully avoided ; and if change of air cannot be enjoyed, or if the patient be still liable to be exposed to malaria, the Prophylactic Measures ad- vised in the article Endemic Influences (§ 20.) should be adopted as far as circumstances wjU permit. BiBLioG. AND Refer Celsiis, De Med. 1. iii. c. 15.— Aviccnna, Canon. 1. iv. fen. i. tract. 2. c. 68. — Sennert, Diss. viii. De Febr. Intermit, in Genere. Vit. 1618. — Ettmuller, Opera, vol. ii. p. 277. — De Bourgcs, Ergo Febr. Intermit. Vomitus. Paris, 1624 — Willis, De Fe. bribus, cap. o. — Closius, Observ. 28 — Morton, De Fe- bribus, cap. 3. — E. Stahl, De Febr. Intermit. Corruptis et Turbatis. Hal. 1713. — il/i(^i, De Usu praiclaro Salis Ammoniaci ad Febr. Intermit. Franc. 1716. — J. Drake, Orationes tres de Febr. Intermit. Lond. 17+2, 4to Hartmkinn, Prax. Chymiatr. 1. ii. c 125 Triller, Thes. I'harmaceut. t. ii. p. 604. — Haller, De Pra;i)ar. Olci Ani- mali.s ejusquein Febr. Interm. Usu. Goet. 1747 Slone, in Philosoph. Trans, vol. liii. p. 195. — Cartheuser, De Febr. Intermit. Epideniicis. 1749. — "Gcscnius, Betra- chung der Wechselfieber, &c. Helrast. 1752. — Huxham, 0|'. Coley, Account of the late Epidemic Ague. Lend. 1755. — F, Torti, Therap. Specialis ad Febr, 3P 946 FEVER, REMITTENT. — Causes. Interm. Perniciosas, &c. 4to. 1756. —P. Senac, De Tle- cond. Febr. Intermit, turn Remitt. Katura. Amst. 8vo. 1759. — Bat/nal, Siir la Methode de guerir les Kiev. Ma- ligiies Intermit. 4to. Paris, 116X—Guiiz, De Cortice Salicis Albifi Cortici Substitueiido. Lips. 177'-'. — Tasier, Febr. Intermit. Cito Compescend. Abstinentia. Pans, l-nS.—Borrieu, in Hist, de la Soc. Roy. de Medecine ad 17711. p. 343 fan Swieten, Comment, ad 759.— G. Baker, ill Trans, of Coll. of Phys. vol. iii. p. 141. —D. Monro, Ibid vol ii. p. 3'25. — liosenb/ad, De Usu Corticis Sa- licis'in Febr. Intermit. Lund. 17S2. et Doering, vol. i. p 140 — Thilenius, Medicin und Ctiirurg. Bemerkung. p lag— S/oeTcA, Ann. Med. vol. ii. p. 163. — G. Cleg- horn on the Epid. Dis. of Minorca from 1744 to 1794, 8vo ' Lond. 1779, 4th ed. — Linnmus, in Amcenitat. Acad, vol ix Ups. 1773. — Bang, in Act. Soc. Med. Havn. vol ii. p. 214. — Stall, Aphor. de Feb. p. 133. — Trnka de Krxowitz, Hist. Febr. Intermit. 8vo. Vindob. 1775. i. Chalmers, on the Weather and Diseases of South Carolina, 8vo. Lond. 1776. — M'Causland, in Edin. Med. Comment, vol. viii. p. 250. — Murray, De Temp. Exhib. Emetica in Febr. Interm. Max. Opportune. Opusc. vol. iv. n 1.— Stall, Ratio Med. &c. vol. iv. p. 476. — J. C. Fidler, De Febr. Intermit. Vien. and Prag. 1784. —Z)/' /.rare. On the Fevers of St. Do. mingo. Spangenbcrg, Hist. Fedr. Intermitt. quiE Anno 18U0. Philippot. Ssviit. &c. Wurceb. 1801. — Thomayin, Annalen liir 1800, p. 133. — J. Breda, De Variis Opium Scopo Febrifugo adhib. Methodis. L. B. 1800. — Bianchi, in Brera, Coiiimentari Medici, t. ii. n. 2. — Styx, in Nor. disch. Archiv. b. i. st. i. n. 4. — Hilscher, in Tode, Med. Chirurg. Journ. b. v. st. 4. — Erdmann, Horn, N. Archiv. b. i. p. 249. — Horn, Ibid. b. ii. p. 132. ; et b. iii. p. 339. — Amelung, Hufeland, Journ. d. Pract. Heilk. b. xviii. st. 2. p. 97. — Kort'um, in Ibid, b. xv. st. 3. p 10 — Hufeland, Ibid. b. ix. St. 3. p. 101. — Werlhof, De Febr. &c. sect, iv. ^ 2. — J. Richard, De Insidiosa Quorund. Febr. Intermitt. tum Remitt. Natura el Curatione, 8vo. Lyon. 1801. — Marcus, Magazin fiir Therapie Klinik. b. i. h. i. p. 28. — Fizeau, Journ. Gun. de Med, t. xvii. p. 459. — io»v«2:, in Ibid. t. xxxiii. p. 361, — 0«o, De Vomit, usu in Febr. Interra. Franc. 1803. — Michaelis, in Hufeland u. Himly, Journ. b. i. p. 107. — P. A. Colombat, Mem. sur une Epid. des Fievres Intermitt. AdynamiccTaxiques, 8vo. Paris, 1809. Coutanceau, Sur les Fievres Interm. Periiicieuses qui ont regne Epidem. a Bourdeaux, in 1805. Paris, 1809. Rehman, Notice sur une Remfede propre a rem. placer la Quinquina. Moscow, 8vo. 1809 — B S. Barton, Collect, towards a Mat. Med. of the Unit. States, 8vo. Phil. 1818, passim. — Alihcrt, Des Fidvres Pernicieuses Intermitt. 8vo. Paris, XBWi. — Hecker, Ann. dor Ge- sammten Medicin. Jan. 1810, p. 595. — Daivson, On the Walcheren Disease, 8vo. Ipsw. 1810. — Davis, On the Fever of Walcheren, 8vo. Lond. 1810. — G. Blane, Trans, of Med. Chir. Soc. vol. iii Ferguson, in Ibid. vol. ii. p. 180. — Trumjtf, Ucber d. Wechselfieber und ihri? Heilart. Wien. 8vo. 1810. — HUdcbrandl,\n Horn's Archiv. IHll, Sept. p. 311.— Vaidy, in Journ. Gi'n. de Med. Cont. t. xviii. p. 335. ; et Diet, des Sciences Med. t. XV p. 300. — Desruelles, Journ. Univers. des Scien. Med. t. xxxii. p. \n. — Bail/y, in Rev. Med. t. ii. 1825, p. 384.; and Traitt^ Anatomico.Pathologique des Fit}vres Intermitt. Simples et Peiniciou.ses, Kc. 8vo. Pari.s, 1825 (Contains a great 7nass of iiifortnalion.) — Uildenlirand, Instit. Med. Pract. \o\.'n.—JISuiiill(iiid, Des Fifevres ditcs Essentielles, 8vo. Paris, 1826, \>. .^>U>. —• Bo/sscaii, Traite des Fidvres, p. 532. — P. B